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lyzidiamond/index.js

Created May 27, 2015 18:45
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index.js
// require() some stuff from npm (like you were using browserify)
// and then hit Run Code to run it on the right
var turf = require('turf');
var polyline = require('polyline');
var geojson = { "type": "Feature", "properties": { "OID_": 0, "Name": "Skyline Blvd", "FolderPath": "bikewaysExp\/bikewaysExp", "SymbolID": 6, "AltitudeMo": 0, "Clamped": -1, "Extruded": 0, "Snippet": "", "PopupInfo": "[CDATA[<html xmlns:fo=\"http:\/\/www.w3.org\/1999\/XSL\/Format\">\n<head>\n<META http-equiv=\"Content-Type\" content=\"text\/html\">\n<style type=\"text\/css\">\n\t\t\t\t\t\tbody { font-family:Arial,Helvetica,sans-serif;\n\t\t\t\t\t\t}\n\t\t\t\t\t<\/style>\n<\/head>\n<body>\n<p>Segment ID: 322<\/p", "Shape_Leng": 0.084314 }, "geometry": { "type": "LineString", "coordinates": [ [ -122.179341, 37.804970 ], [ -122.179187, 37.805035 ], [ -122.179122, 37.805062 ], [ -122.178814, 37.805167 ], [ -122.178768, 37.805191 ], [ -122.178695, 37.805227 ], [ -122.178660, 37.805249 ], [ -122.178621, 37.805274 ], [ -122.178583, 37.805301 ], [ -122.178546, 37.805329 ], [ -122.178510, 37.805358 ], [ -122.178476, 37.805388 ], [ -122.178444, 37.805419 ], [ -122.178414, 37.805450 ], [ 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console.log(polyline.encode(line));
Raw
minified.js
require=function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){var base64=require("base64-js");var ieee754=require("ieee754");var isArray=require("is-array");exports.Buffer=Buffer;exports.SlowBuffer=SlowBuffer;exports.INSPECT_MAX_BYTES=50;Buffer.poolSize=8192;var kMaxLength=1073741823;var rootParent={};Buffer.TYPED_ARRAY_SUPPORT=function(){try{var buf=new ArrayBuffer(0);var arr=new Uint8Array(buf);arr.foo=function(){return 42};return 42===arr.foo()&&typeof arr.subarray==="function"&&new Uint8Array(1).subarray(1,1).byteLength===0}catch(e){return false}}();function Buffer(subject,encoding,noZero){if(!(this instanceof Buffer))return new Buffer(subject,encoding,noZero);var type=typeof subject;var length;if(type==="number")length=subject>0?subject>>>0:0;else if(type==="string"){length=Buffer.byteLength(subject,encoding)}else if(type==="object"&&subject!==null){if(subject.type==="Buffer"&&isArray(subject.data))subject=subject.data;length=+subject.length>0?Math.floor(+subject.length):0}else throw new TypeError("must start with number, buffer, array or string");if(length>kMaxLength)throw new RangeError("Attempt to allocate Buffer larger than maximum "+"size: 0x"+kMaxLength.toString(16)+" bytes");var buf;if(Buffer.TYPED_ARRAY_SUPPORT){buf=Buffer._augment(new Uint8Array(length))}else{buf=this;buf.length=length;buf._isBuffer=true}var i;if(Buffer.TYPED_ARRAY_SUPPORT&&typeof subject.byteLength==="number"){buf._set(subject)}else if(isArrayish(subject)){if(Buffer.isBuffer(subject)){for(i=0;i<length;i++)buf[i]=subject.readUInt8(i)}else{for(i=0;i<length;i++)buf[i]=(subject[i]%256+256)%256}}else if(type==="string"){buf.write(subject,0,encoding)}else if(type==="number"&&!Buffer.TYPED_ARRAY_SUPPORT&&!noZero){for(i=0;i<length;i++){buf[i]=0}}if(length>0&&length<=Buffer.poolSize)buf.parent=rootParent;return buf}function SlowBuffer(subject,encoding,noZero){if(!(this instanceof SlowBuffer))return new SlowBuffer(subject,encoding,noZero);var buf=new Buffer(subject,encoding,noZero);delete buf.parent;return buf}Buffer.isBuffer=function(b){return!!(b!=null&&b._isBuffer)};Buffer.compare=function(a,b){if(!Buffer.isBuffer(a)||!Buffer.isBuffer(b))throw new TypeError("Arguments must be Buffers");var x=a.length;var y=b.length;for(var i=0,len=Math.min(x,y);i<len&&a[i]===b[i];i++){}if(i!==len){x=a[i];y=b[i]}if(x<y)return-1;if(y<x)return 1;return 0};Buffer.isEncoding=function(encoding){switch(String(encoding).toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"binary":case"base64":case"raw":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return true;default:return false}};Buffer.concat=function(list,totalLength){if(!isArray(list))throw new TypeError("Usage: Buffer.concat(list[, length])");if(list.length===0){return new Buffer(0)}else if(list.length===1){return list[0]}var i;if(totalLength===undefined){totalLength=0;for(i=0;i<list.length;i++){totalLength+=list[i].length}}var buf=new Buffer(totalLength);var pos=0;for(i=0;i<list.length;i++){var item=list[i];item.copy(buf,pos);pos+=item.length}return buf};Buffer.byteLength=function(str,encoding){var ret;str=str+"";switch(encoding||"utf8"){case"ascii":case"binary":case"raw":ret=str.length;break;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":ret=str.length*2;break;case"hex":ret=str.length>>>1;break;case"utf8":case"utf-8":ret=utf8ToBytes(str).length;break;case"base64":ret=base64ToBytes(str).length;break;default:ret=str.length}return ret};Buffer.prototype.length=undefined;Buffer.prototype.parent=undefined;Buffer.prototype.toString=function(encoding,start,end){var loweredCase=false;start=start>>>0;end=end===undefined||end===Infinity?this.length:end>>>0;if(!encoding)encoding="utf8";if(start<0)start=0;if(end>this.length)end=this.length;if(end<=start)return"";while(true){switch(encoding){case"hex":return hexSlice(this,start,end);case"utf8":case"utf-8":return utf8Slice(this,start,end);case"ascii":return asciiSlice(this,start,end);case"binary":return binarySlice(this,start,end);case"base64":return base64Slice(this,start,end);case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":return utf16leSlice(this,start,end);default:if(loweredCase)throw new TypeError("Unknown encoding: "+encoding);encoding=(encoding+"").toLowerCase();loweredCase=true}}};Buffer.prototype.equals=function(b){if(!Buffer.isBuffer(b))throw new TypeError("Argument must be a Buffer");return Buffer.compare(this,b)===0};Buffer.prototype.inspect=function(){var str="";var max=exports.INSPECT_MAX_BYTES;if(this.length>0){str=this.toString("hex",0,max).match(/.{2}/g).join(" ");if(this.length>max)str+=" ... "}return"<Buffer "+str+">"};Buffer.prototype.compare=function(b){if(!Buffer.isBuffer(b))throw new TypeError("Argument must be a Buffer");return Buffer.compare(this,b)};Buffer.prototype.get=function(offset){console.log(".get() is deprecated. Access using array indexes instead.");return this.readUInt8(offset)};Buffer.prototype.set=function(v,offset){console.log(".set() is deprecated. Access using array indexes instead.");return this.writeUInt8(v,offset)};function hexWrite(buf,string,offset,length){offset=Number(offset)||0;var remaining=buf.length-offset;if(!length){length=remaining}else{length=Number(length);if(length>remaining){length=remaining}}var strLen=string.length;if(strLen%2!==0)throw new Error("Invalid hex string");if(length>strLen/2){length=strLen/2}for(var i=0;i<length;i++){var byte=parseInt(string.substr(i*2,2),16);if(isNaN(byte))throw new Error("Invalid hex string");buf[offset+i]=byte}return i}function utf8Write(buf,string,offset,length){var charsWritten=blitBuffer(utf8ToBytes(string,buf.length-offset),buf,offset,length);return charsWritten}function asciiWrite(buf,string,offset,length){var charsWritten=blitBuffer(asciiToBytes(string),buf,offset,length);return charsWritten}function binaryWrite(buf,string,offset,length){return asciiWrite(buf,string,offset,length)}function base64Write(buf,string,offset,length){var charsWritten=blitBuffer(base64ToBytes(string),buf,offset,length);return charsWritten}function utf16leWrite(buf,string,offset,length){var charsWritten=blitBuffer(utf16leToBytes(string,buf.length-offset),buf,offset,length,2);return charsWritten}Buffer.prototype.write=function(string,offset,length,encoding){if(isFinite(offset)){if(!isFinite(length)){encoding=length;length=undefined}}else{var swap=encoding;encoding=offset;offset=length;length=swap}offset=Number(offset)||0;if(length<0||offset<0||offset>this.length)throw new RangeError("attempt to write outside buffer bounds");var remaining=this.length-offset;if(!length){length=remaining}else{length=Number(length);if(length>remaining){length=remaining}}encoding=String(encoding||"utf8").toLowerCase();var ret;switch(encoding){case"hex":ret=hexWrite(this,string,offset,length);break;case"utf8":case"utf-8":ret=utf8Write(this,string,offset,length);break;case"ascii":ret=asciiWrite(this,string,offset,length);break;case"binary":ret=binaryWrite(this,string,offset,length);break;case"base64":ret=base64Write(this,string,offset,length);break;case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":ret=utf16leWrite(this,string,offset,length);break;default:throw new TypeError("Unknown encoding: "+encoding)}return ret};Buffer.prototype.toJSON=function(){return{type:"Buffer",data:Array.prototype.slice.call(this._arr||this,0)}};function base64Slice(buf,start,end){if(start===0&&end===buf.length){return base64.fromByteArray(buf)}else{return base64.fromByteArray(buf.slice(start,end))}}function utf8Slice(buf,start,end){var res="";var tmp="";end=Math.min(buf.length,end);for(var i=start;i<end;i++){if(buf[i]<=127){res+=decodeUtf8Char(tmp)+String.fromCharCode(buf[i]);tmp=""}else{tmp+="%"+buf[i].toString(16)}}return res+decodeUtf8Char(tmp)}function asciiSlice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;i++){ret+=String.fromCharCode(buf[i]&127)}return ret}function binarySlice(buf,start,end){var ret="";end=Math.min(buf.length,end);for(var i=start;i<end;i++){ret+=String.fromCharCode(buf[i])}return ret}function hexSlice(buf,start,end){var len=buf.length;if(!start||start<0)start=0;if(!end||end<0||end>len)end=len;var out="";for(var i=start;i<end;i++){out+=toHex(buf[i])}return out}function utf16leSlice(buf,start,end){var bytes=buf.slice(start,end);var res="";for(var i=0;i<bytes.length;i+=2){res+=String.fromCharCode(bytes[i]+bytes[i+1]*256)}return res}Buffer.prototype.slice=function(start,end){var len=this.length;start=~~start;end=end===undefined?len:~~end;if(start<0){start+=len;if(start<0)start=0}else if(start>len){start=len}if(end<0){end+=len;if(end<0)end=0}else if(end>len){end=len}if(end<start)end=start;var newBuf;if(Buffer.TYPED_ARRAY_SUPPORT){newBuf=Buffer._augment(this.subarray(start,end))}else{var sliceLen=end-start;newBuf=new Buffer(sliceLen,undefined,true);for(var i=0;i<sliceLen;i++){newBuf[i]=this[i+start]}}if(newBuf.length)newBuf.parent=this.parent||this;return newBuf};function checkOffset(offset,ext,length){if(offset%1!==0||offset<0)throw new RangeError("offset is not uint");if(offset+ext>length)throw new RangeError("Trying to access beyond buffer length")}Buffer.prototype.readUIntLE=function(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var val=this[offset];var mul=1;var i=0;while(++i<byteLength&&(mul*=256))val+=this[offset+i]*mul;return val};Buffer.prototype.readUIntBE=function(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var val=this[offset+--byteLength];var mul=1;while(byteLength>0&&(mul*=256))val+=this[offset+--byteLength]*mul;return val};Buffer.prototype.readUInt8=function(offset,noAssert){if(!noAssert)checkOffset(offset,1,this.length);return this[offset]};Buffer.prototype.readUInt16LE=function(offset,noAssert){if(!noAssert)checkOffset(offset,2,this.length);return this[offset]|this[offset+1]<<8};Buffer.prototype.readUInt16BE=function(offset,noAssert){if(!noAssert)checkOffset(offset,2,this.length);return this[offset]<<8|this[offset+1]};Buffer.prototype.readUInt32LE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return(this[offset]|this[offset+1]<<8|this[offset+2]<<16)+this[offset+3]*16777216};Buffer.prototype.readUInt32BE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return this[offset]*16777216+(this[offset+1]<<16|this[offset+2]<<8|this[offset+3])};Buffer.prototype.readIntLE=function(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var val=this[offset];var mul=1;var i=0;while(++i<byteLength&&(mul*=256))val+=this[offset+i]*mul;mul*=128;if(val>=mul)val-=Math.pow(2,8*byteLength);return val};Buffer.prototype.readIntBE=function(offset,byteLength,noAssert){offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkOffset(offset,byteLength,this.length);var i=byteLength;var mul=1;var val=this[offset+--i];while(i>0&&(mul*=256))val+=this[offset+--i]*mul;mul*=128;if(val>=mul)val-=Math.pow(2,8*byteLength);return val};Buffer.prototype.readInt8=function(offset,noAssert){if(!noAssert)checkOffset(offset,1,this.length);if(!(this[offset]&128))return this[offset];return(255-this[offset]+1)*-1};Buffer.prototype.readInt16LE=function(offset,noAssert){if(!noAssert)checkOffset(offset,2,this.length);var val=this[offset]|this[offset+1]<<8;return val&32768?val|4294901760:val};Buffer.prototype.readInt16BE=function(offset,noAssert){if(!noAssert)checkOffset(offset,2,this.length);var val=this[offset+1]|this[offset]<<8;return val&32768?val|4294901760:val};Buffer.prototype.readInt32LE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return this[offset]|this[offset+1]<<8|this[offset+2]<<16|this[offset+3]<<24};Buffer.prototype.readInt32BE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return this[offset]<<24|this[offset+1]<<16|this[offset+2]<<8|this[offset+3]};Buffer.prototype.readFloatLE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return ieee754.read(this,offset,true,23,4)};Buffer.prototype.readFloatBE=function(offset,noAssert){if(!noAssert)checkOffset(offset,4,this.length);return ieee754.read(this,offset,false,23,4)};Buffer.prototype.readDoubleLE=function(offset,noAssert){if(!noAssert)checkOffset(offset,8,this.length);return ieee754.read(this,offset,true,52,8)};Buffer.prototype.readDoubleBE=function(offset,noAssert){if(!noAssert)checkOffset(offset,8,this.length);return ieee754.read(this,offset,false,52,8)};function checkInt(buf,value,offset,ext,max,min){if(!Buffer.isBuffer(buf))throw new TypeError("buffer must be a Buffer instance");if(value>max||value<min)throw new RangeError("value is out of bounds");if(offset+ext>buf.length)throw new RangeError("index out of range")}Buffer.prototype.writeUIntLE=function(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkInt(this,value,offset,byteLength,Math.pow(2,8*byteLength),0);var mul=1;var i=0;this[offset]=value&255;while(++i<byteLength&&(mul*=256))this[offset+i]=value/mul>>>0&255;return offset+byteLength};Buffer.prototype.writeUIntBE=function(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;byteLength=byteLength>>>0;if(!noAssert)checkInt(this,value,offset,byteLength,Math.pow(2,8*byteLength),0);var i=byteLength-1;var mul=1;this[offset+i]=value&255;while(--i>=0&&(mul*=256))this[offset+i]=value/mul>>>0&255;return offset+byteLength};Buffer.prototype.writeUInt8=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,1,255,0);if(!Buffer.TYPED_ARRAY_SUPPORT)value=Math.floor(value);this[offset]=value;return offset+1};function objectWriteUInt16(buf,value,offset,littleEndian){if(value<0)value=65535+value+1;for(var i=0,j=Math.min(buf.length-offset,2);i<j;i++){buf[offset+i]=(value&255<<8*(littleEndian?i:1-i))>>>(littleEndian?i:1-i)*8}}Buffer.prototype.writeUInt16LE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,65535,0);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value;this[offset+1]=value>>>8}else objectWriteUInt16(this,value,offset,true);return offset+2};Buffer.prototype.writeUInt16BE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,65535,0);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value>>>8;this[offset+1]=value}else objectWriteUInt16(this,value,offset,false);return offset+2};function objectWriteUInt32(buf,value,offset,littleEndian){if(value<0)value=4294967295+value+1;for(var i=0,j=Math.min(buf.length-offset,4);i<j;i++){buf[offset+i]=value>>>(littleEndian?i:3-i)*8&255}}Buffer.prototype.writeUInt32LE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,4294967295,0);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset+3]=value>>>24;this[offset+2]=value>>>16;this[offset+1]=value>>>8;this[offset]=value}else objectWriteUInt32(this,value,offset,true);return offset+4};Buffer.prototype.writeUInt32BE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,4294967295,0);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value>>>24;this[offset+1]=value>>>16;this[offset+2]=value>>>8;this[offset+3]=value}else objectWriteUInt32(this,value,offset,false);return offset+4};Buffer.prototype.writeIntLE=function(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;if(!noAssert){checkInt(this,value,offset,byteLength,Math.pow(2,8*byteLength-1)-1,-Math.pow(2,8*byteLength-1))}var i=0;var mul=1;var sub=value<0?1:0;this[offset]=value&255;while(++i<byteLength&&(mul*=256))this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength};Buffer.prototype.writeIntBE=function(value,offset,byteLength,noAssert){value=+value;offset=offset>>>0;if(!noAssert){checkInt(this,value,offset,byteLength,Math.pow(2,8*byteLength-1)-1,-Math.pow(2,8*byteLength-1))}var i=byteLength-1;var mul=1;var sub=value<0?1:0;this[offset+i]=value&255;while(--i>=0&&(mul*=256))this[offset+i]=(value/mul>>0)-sub&255;return offset+byteLength};Buffer.prototype.writeInt8=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,1,127,-128);if(!Buffer.TYPED_ARRAY_SUPPORT)value=Math.floor(value);if(value<0)value=255+value+1;this[offset]=value;return offset+1};Buffer.prototype.writeInt16LE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,32767,-32768);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value;this[offset+1]=value>>>8}else objectWriteUInt16(this,value,offset,true);return offset+2};Buffer.prototype.writeInt16BE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,2,32767,-32768);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value>>>8;this[offset+1]=value}else objectWriteUInt16(this,value,offset,false);return offset+2};Buffer.prototype.writeInt32LE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,2147483647,-2147483648);if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value;this[offset+1]=value>>>8;this[offset+2]=value>>>16;this[offset+3]=value>>>24}else objectWriteUInt32(this,value,offset,true);return offset+4};Buffer.prototype.writeInt32BE=function(value,offset,noAssert){value=+value;offset=offset>>>0;if(!noAssert)checkInt(this,value,offset,4,2147483647,-2147483648);if(value<0)value=4294967295+value+1;if(Buffer.TYPED_ARRAY_SUPPORT){this[offset]=value>>>24;this[offset+1]=value>>>16;this[offset+2]=value>>>8;this[offset+3]=value}else objectWriteUInt32(this,value,offset,false);return offset+4};function checkIEEE754(buf,value,offset,ext,max,min){if(value>max||value<min)throw new RangeError("value is out of bounds");if(offset+ext>buf.length)throw new RangeError("index out of range");if(offset<0)throw new RangeError("index out of range")}function writeFloat(buf,value,offset,littleEndian,noAssert){if(!noAssert)checkIEEE754(buf,value,offset,4,3.4028234663852886e38,-3.4028234663852886e38);ieee754.write(buf,value,offset,littleEndian,23,4);return offset+4}Buffer.prototype.writeFloatLE=function(value,offset,noAssert){return writeFloat(this,value,offset,true,noAssert)};Buffer.prototype.writeFloatBE=function(value,offset,noAssert){return writeFloat(this,value,offset,false,noAssert)};function writeDouble(buf,value,offset,littleEndian,noAssert){if(!noAssert)checkIEEE754(buf,value,offset,8,1.7976931348623157e308,-1.7976931348623157e308);ieee754.write(buf,value,offset,littleEndian,52,8);return offset+8}Buffer.prototype.writeDoubleLE=function(value,offset,noAssert){return writeDouble(this,value,offset,true,noAssert)};Buffer.prototype.writeDoubleBE=function(value,offset,noAssert){return writeDouble(this,value,offset,false,noAssert)};Buffer.prototype.copy=function(target,target_start,start,end){var source=this;if(!start)start=0;if(!end&&end!==0)end=this.length;if(target_start>=target.length)target_start=target.length;if(!target_start)target_start=0;if(end>0&&end<start)end=start;if(end===start)return 0;if(target.length===0||source.length===0)return 0;if(target_start<0)throw new RangeError("targetStart out of bounds");if(start<0||start>=source.length)throw new RangeError("sourceStart out of bounds");if(end<0)throw new RangeError("sourceEnd out of bounds");if(end>this.length)end=this.length;if(target.length-target_start<end-start)end=target.length-target_start+start;var len=end-start;if(len<1e3||!Buffer.TYPED_ARRAY_SUPPORT){for(var i=0;i<len;i++){target[i+target_start]=this[i+start]}}else{target._set(this.subarray(start,start+len),target_start)}return len};Buffer.prototype.fill=function(value,start,end){if(!value)value=0;if(!start)start=0;if(!end)end=this.length;if(end<start)throw new RangeError("end < start");if(end===start)return;if(this.length===0)return;if(start<0||start>=this.length)throw new RangeError("start out of bounds");if(end<0||end>this.length)throw new RangeError("end out of bounds");var i;if(typeof value==="number"){for(i=start;i<end;i++){this[i]=value}}else{var bytes=utf8ToBytes(value.toString());var len=bytes.length;for(i=start;i<end;i++){this[i]=bytes[i%len]}}return this};Buffer.prototype.toArrayBuffer=function(){if(typeof Uint8Array!=="undefined"){if(Buffer.TYPED_ARRAY_SUPPORT){return new Buffer(this).buffer}else{var buf=new Uint8Array(this.length);for(var i=0,len=buf.length;i<len;i+=1){buf[i]=this[i]}return buf.buffer}}else{throw new TypeError("Buffer.toArrayBuffer not supported in this browser")}};var BP=Buffer.prototype;Buffer._augment=function(arr){arr.constructor=Buffer;arr._isBuffer=true;arr._get=arr.get;arr._set=arr.set;arr.get=BP.get;arr.set=BP.set;arr.write=BP.write;arr.toString=BP.toString;arr.toLocaleString=BP.toString;arr.toJSON=BP.toJSON;arr.equals=BP.equals;arr.compare=BP.compare;arr.copy=BP.copy;arr.slice=BP.slice;arr.readUIntLE=BP.readUIntLE;arr.readUIntBE=BP.readUIntBE;arr.readUInt8=BP.readUInt8;arr.readUInt16LE=BP.readUInt16LE;arr.readUInt16BE=BP.readUInt16BE;arr.readUInt32LE=BP.readUInt32LE;arr.readUInt32BE=BP.readUInt32BE;arr.readIntLE=BP.readIntLE;arr.readIntBE=BP.readIntBE;arr.readInt8=BP.readInt8;arr.readInt16LE=BP.readInt16LE;arr.readInt16BE=BP.readInt16BE;arr.readInt32LE=BP.readInt32LE;arr.readInt32BE=BP.readInt32BE;arr.readFloatLE=BP.readFloatLE;arr.readFloatBE=BP.readFloatBE;arr.readDoubleLE=BP.readDoubleLE;arr.readDoubleBE=BP.readDoubleBE;arr.writeUInt8=BP.writeUInt8;arr.writeUIntLE=BP.writeUIntLE;arr.writeUIntBE=BP.writeUIntBE;arr.writeUInt16LE=BP.writeUInt16LE;arr.writeUInt16BE=BP.writeUInt16BE;arr.writeUInt32LE=BP.writeUInt32LE;arr.writeUInt32BE=BP.writeUInt32BE;arr.writeIntLE=BP.writeIntLE;arr.writeIntBE=BP.writeIntBE;arr.writeInt8=BP.writeInt8;arr.writeInt16LE=BP.writeInt16LE;arr.writeInt16BE=BP.writeInt16BE;arr.writeInt32LE=BP.writeInt32LE;arr.writeInt32BE=BP.writeInt32BE;arr.writeFloatLE=BP.writeFloatLE;arr.writeFloatBE=BP.writeFloatBE;arr.writeDoubleLE=BP.writeDoubleLE;arr.writeDoubleBE=BP.writeDoubleBE;arr.fill=BP.fill;arr.inspect=BP.inspect;arr.toArrayBuffer=BP.toArrayBuffer;return arr};var INVALID_BASE64_RE=/[^+\/0-9A-z\-]/g;function base64clean(str){str=stringtrim(str).replace(INVALID_BASE64_RE,"");if(str.length<2)return"";while(str.length%4!==0){str=str+"="}return str}function stringtrim(str){if(str.trim)return str.trim();return str.replace(/^\s+|\s+$/g,"")}function isArrayish(subject){return isArray(subject)||Buffer.isBuffer(subject)||subject&&typeof subject==="object"&&typeof subject.length==="number"}function toHex(n){if(n<16)return"0"+n.toString(16);return n.toString(16)}function utf8ToBytes(string,units){var codePoint,length=string.length;var leadSurrogate=null;units=units||Infinity;var bytes=[];var i=0;for(;i<length;i++){codePoint=string.charCodeAt(i);if(codePoint>55295&&codePoint<57344){if(leadSurrogate){if(codePoint<56320){if((units-=3)>-1)bytes.push(239,191,189);leadSurrogate=codePoint;continue}else{codePoint=leadSurrogate-55296<<10|codePoint-56320|65536;leadSurrogate=null}}else{if(codePoint>56319){if((units-=3)>-1)bytes.push(239,191,189);continue}else if(i+1===length){if((units-=3)>-1)bytes.push(239,191,189);continue}else{leadSurrogate=codePoint;continue}}}else if(leadSurrogate){if((units-=3)>-1)bytes.push(239,191,189);leadSurrogate=null}if(codePoint<128){if((units-=1)<0)break;bytes.push(codePoint)}else if(codePoint<2048){if((units-=2)<0)break;bytes.push(codePoint>>6|192,codePoint&63|128)}else if(codePoint<65536){if((units-=3)<0)break;bytes.push(codePoint>>12|224,codePoint>>6&63|128,codePoint&63|128)}else if(codePoint<2097152){if((units-=4)<0)break;bytes.push(codePoint>>18|240,codePoint>>12&63|128,codePoint>>6&63|128,codePoint&63|128)}else{throw new Error("Invalid code point")}}return bytes}function asciiToBytes(str){var byteArray=[];for(var i=0;i<str.length;i++){byteArray.push(str.charCodeAt(i)&255)}return byteArray}function utf16leToBytes(str,units){var c,hi,lo;var byteArray=[];for(var i=0;i<str.length;i++){if((units-=2)<0)break;c=str.charCodeAt(i);hi=c>>8;lo=c%256;byteArray.push(lo);byteArray.push(hi)}return byteArray}function base64ToBytes(str){return base64.toByteArray(base64clean(str))}function blitBuffer(src,dst,offset,length,unitSize){if(unitSize)length-=length%unitSize;for(var i=0;i<length;i++){if(i+offset>=dst.length||i>=src.length)break;dst[i+offset]=src[i]}return i}function decodeUtf8Char(str){try{return decodeURIComponent(str)}catch(err){return String.fromCharCode(65533)}}},{"base64-js":2,ieee754:3,"is-array":4}],2:[function(require,module,exports){var lookup="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";(function(exports){"use strict";var Arr=typeof Uint8Array!=="undefined"?Uint8Array:Array;var PLUS="+".charCodeAt(0);var SLASH="/".charCodeAt(0);var NUMBER="0".charCodeAt(0);var LOWER="a".charCodeAt(0);var UPPER="A".charCodeAt(0);var PLUS_URL_SAFE="-".charCodeAt(0);var SLASH_URL_SAFE="_".charCodeAt(0);function decode(elt){var code=elt.charCodeAt(0);if(code===PLUS||code===PLUS_URL_SAFE)return 62;if(code===SLASH||code===SLASH_URL_SAFE)return 63;if(code<NUMBER)return-1;if(code<NUMBER+10)return code-NUMBER+26+26;if(code<UPPER+26)return code-UPPER;if(code<LOWER+26)return code-LOWER+26}function b64ToByteArray(b64){var i,j,l,tmp,placeHolders,arr;if(b64.length%4>0){throw new Error("Invalid string. Length must be a multiple of 4")}var len=b64.length;placeHolders="="===b64.charAt(len-2)?2:"="===b64.charAt(len-1)?1:0;arr=new Arr(b64.length*3/4-placeHolders);l=placeHolders>0?b64.length-4:b64.length;var L=0;function push(v){arr[L++]=v}for(i=0,j=0;i<l;i+=4,j+=3){tmp=decode(b64.charAt(i))<<18|decode(b64.charAt(i+1))<<12|decode(b64.charAt(i+2))<<6|decode(b64.charAt(i+3));push((tmp&16711680)>>16);push((tmp&65280)>>8);push(tmp&255)}if(placeHolders===2){tmp=decode(b64.charAt(i))<<2|decode(b64.charAt(i+1))>>4;push(tmp&255)}else if(placeHolders===1){tmp=decode(b64.charAt(i))<<10|decode(b64.charAt(i+1))<<4|decode(b64.charAt(i+2))>>2;push(tmp>>8&255);push(tmp&255)}return arr}function uint8ToBase64(uint8){var i,extraBytes=uint8.length%3,output="",temp,length;function encode(num){return lookup.charAt(num)}function tripletToBase64(num){return encode(num>>18&63)+encode(num>>12&63)+encode(num>>6&63)+encode(num&63)}for(i=0,length=uint8.length-extraBytes;i<length;i+=3){temp=(uint8[i]<<16)+(uint8[i+1]<<8)+uint8[i+2];output+=tripletToBase64(temp)}switch(extraBytes){case 1:temp=uint8[uint8.length-1];output+=encode(temp>>2);output+=encode(temp<<4&63);output+="==";break;case 2:temp=(uint8[uint8.length-2]<<8)+uint8[uint8.length-1];output+=encode(temp>>10);output+=encode(temp>>4&63);output+=encode(temp<<2&63);output+="=";break}return output}exports.toByteArray=b64ToByteArray;exports.fromByteArray=uint8ToBase64})(typeof exports==="undefined"?this.base64js={}:exports)},{}],3:[function(require,module,exports){exports.read=function(buffer,offset,isLE,mLen,nBytes){var e,m,eLen=nBytes*8-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,nBits=-7,i=isLE?nBytes-1:0,d=isLE?-1:1,s=buffer[offset+i];i+=d;e=s&(1<<-nBits)-1;s>>=-nBits;nBits+=eLen;for(;nBits>0;e=e*256+buffer[offset+i],i+=d,nBits-=8);m=e&(1<<-nBits)-1;e>>=-nBits;nBits+=mLen;for(;nBits>0;m=m*256+buffer[offset+i],i+=d,nBits-=8);if(e===0){e=1-eBias}else if(e===eMax){return m?NaN:(s?-1:1)*Infinity}else{m=m+Math.pow(2,mLen);e=e-eBias}return(s?-1:1)*m*Math.pow(2,e-mLen)};exports.write=function(buffer,value,offset,isLE,mLen,nBytes){var e,m,c,eLen=nBytes*8-mLen-1,eMax=(1<<eLen)-1,eBias=eMax>>1,rt=mLen===23?Math.pow(2,-24)-Math.pow(2,-77):0,i=isLE?0:nBytes-1,d=isLE?1:-1,s=value<0||value===0&&1/value<0?1:0;value=Math.abs(value);if(isNaN(value)||value===Infinity){m=isNaN(value)?1:0;e=eMax}else{e=Math.floor(Math.log(value)/Math.LN2);if(value*(c=Math.pow(2,-e))<1){e--;c*=2}if(e+eBias>=1){value+=rt/c}else{value+=rt*Math.pow(2,1-eBias)}if(value*c>=2){e++;c/=2}if(e+eBias>=eMax){m=0;e=eMax}else if(e+eBias>=1){m=(value*c-1)*Math.pow(2,mLen);e=e+eBias}else{m=value*Math.pow(2,eBias-1)*Math.pow(2,mLen);e=0}}for(;mLen>=8;buffer[offset+i]=m&255,i+=d,m/=256,mLen-=8);e=e<<mLen|m;eLen+=mLen;for(;eLen>0;buffer[offset+i]=e&255,i+=d,e/=256,eLen-=8);buffer[offset+i-d]|=s*128}},{}],4:[function(require,module,exports){var isArray=Array.isArray;var str=Object.prototype.toString;module.exports=isArray||function(val){return!!val&&"[object Array]"==str.call(val)}},{}],5:[function(require,module,exports){var average=require("turf-average");var sum=require("turf-sum");var median=require("turf-median");var min=require("turf-min");var max=require("turf-max");var deviation=require("turf-deviation");var variance=require("turf-variance");var count=require("turf-count");var operations={};operations.average=average;operations.sum=sum;operations.median=median;operations.min=min;operations.max=max;operations.deviation=deviation;operations.variance=variance;operations.count=count;module.exports=function(polygons,points,aggregations){for(var i=0,len=aggregations.length;i<len;i++){var agg=aggregations[i],operation=agg.aggregation,unrecognizedError;if(isAggregationOperation(operation)){if(operation==="count"){polygons=operations[operation](polygons,points,agg.outField)}else{polygons=operations[operation](polygons,points,agg.inField,agg.outField)}}else{throw new Error('"'+operation+'" is not a recognized aggregation operation.')}}return polygons};function isAggregationOperation(operation){return operation==="average"||operation==="sum"||operation==="median"||operation==="min"||operation==="max"||operation==="deviation"||operation==="variance"||operation==="count"}},{"turf-average":10,"turf-count":55,"turf-deviation":57,"turf-max":90,"turf-median":91,"turf-min":95,"turf-sum":115,"turf-variance":124}],6:[function(require,module,exports){var distance=require("turf-distance");var point=require("turf-point");var bearing=require("turf-bearing");var destination=require("turf-destination");module.exports=function(line,dist,units){var coords;if(line.type==="Feature")coords=line.geometry.coordinates;else if(line.type==="LineString")coords=line.geometry.coordinates;else throw new Error("input must be a LineString Feature or Geometry");var travelled=0;for(var i=0;i<coords.length;i++){if(dist>=travelled&&i===coords.length-1)break;else if(travelled>=dist){var overshot=dist-travelled;if(!overshot)return point(coords[i]);else{var direction=bearing(point(coords[i]),point(coords[i-1]))-180;var interpolated=destination(point(coords[i]),overshot,direction,units);return interpolated}}else{travelled+=distance(point(coords[i]),point(coords[i+1]),units)}}return point(coords[coords.length-1])}},{"turf-bearing":12,"turf-destination":56,"turf-distance":59,"turf-point":101}],7:[function(require,module,exports){var geometryArea=require("geojson-area").geometry;module.exports=function(_){if(_.type==="FeatureCollection"){for(var i=0,sum=0;i<_.features.length;i++){if(_.features[i].geometry){sum+=geometryArea(_.features[i].geometry)}}return sum}else if(_.type==="Feature"){return geometryArea(_.geometry)}else{return geometryArea(_)}}},{"geojson-area":8}],8:[function(require,module,exports){var wgs84=require("wgs84");module.exports.geometry=geometry;module.exports.ring=ringArea;function geometry(_){var area=0,i;switch(_.type){case"Polygon":return polygonArea(_.coordinates);case"MultiPolygon":for(i=0;i<_.coordinates.length;i++){area+=polygonArea(_.coordinates[i])}return area;case"Point":case"MultiPoint":case"LineString":case"MultiLineString":return 0;case"GeometryCollection":for(i=0;i<_.geometries.length;i++){area+=geometry(_.geometries[i])}return area}}function polygonArea(coords){var area=0;if(coords&&coords.length>0){
area+=Math.abs(ringArea(coords[0]));for(var i=1;i<coords.length;i++){area-=Math.abs(ringArea(coords[i]))}}return area}function ringArea(coords){var area=0;if(coords.length>2){var p1,p2;for(var i=0;i<coords.length-1;i++){p1=coords[i];p2=coords[i+1];area+=rad(p2[0]-p1[0])*(2+Math.sin(rad(p1[1]))+Math.sin(rad(p2[1])))}area=area*wgs84.RADIUS*wgs84.RADIUS/2}return area}function rad(_){return _*Math.PI/180}},{wgs84:9}],9:[function(require,module,exports){module.exports.RADIUS=6378137;module.exports.FLATTENING=1/298.257223563;module.exports.POLAR_RADIUS=6356752.3142},{}],10:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField,done){polyFC.features.forEach(function(poly){if(!poly.properties)poly.properties={};var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly))values.push(pt.properties[inField])});poly.properties[outField]=average(values)});return polyFC};function average(values){var sum=0;for(var i=0;i<values.length;i++){sum+=values[i]}return sum/values.length}},{"turf-inside":75}],11:[function(require,module,exports){var polygon=require("turf-polygon");module.exports=function(bbox){var lowLeft=[bbox[0],bbox[1]];var topLeft=[bbox[0],bbox[3]];var topRight=[bbox[2],bbox[3]];var lowRight=[bbox[2],bbox[1]];var poly=polygon([[lowLeft,lowRight,topRight,topLeft,lowLeft]]);return poly}},{"turf-polygon":102}],12:[function(require,module,exports){module.exports=function(point1,point2){var coordinates1=point1.geometry.coordinates;var coordinates2=point2.geometry.coordinates;var lon1=toRad(coordinates1[0]);var lon2=toRad(coordinates2[0]);var lat1=toRad(coordinates1[1]);var lat2=toRad(coordinates2[1]);var a=Math.sin(lon2-lon1)*Math.cos(lat2);var b=Math.cos(lat1)*Math.sin(lat2)-Math.sin(lat1)*Math.cos(lat2)*Math.cos(lon2-lon1);var bearing=toDeg(Math.atan2(a,b));return bearing};function toRad(degree){return degree*Math.PI/180}function toDeg(radian){return radian*180/Math.PI}},{}],13:[function(require,module,exports){var linestring=require("turf-linestring");var Spline=require("./spline.js");module.exports=function(line,resolution,sharpness){var lineOut=linestring([]);lineOut.properties=line.properties;var pts=line.geometry.coordinates.map(function(pt){return{x:pt[0],y:pt[1]}});var spline=new Spline({points:pts,duration:resolution,sharpness:sharpness});for(var i=0;i<spline.duration;i+=10){var pos=spline.pos(i);if(Math.floor(i/100)%2===0){lineOut.geometry.coordinates.push([pos.x,pos.y])}}return lineOut}},{"./spline.js":14,"turf-linestring":89}],14:[function(require,module,exports){var Spline=function(options){this.points=options.points||[];this.duration=options.duration||1e4;this.sharpness=options.sharpness||.85;this.centers=[];this.controls=[];this.stepLength=options.stepLength||60;this.length=this.points.length;this.delay=0;for(var i=0;i<this.length;i++)this.points[i].z=this.points[i].z||0;for(var i=0;i<this.length-1;i++){var p1=this.points[i];var p2=this.points[i+1];this.centers.push({x:(p1.x+p2.x)/2,y:(p1.y+p2.y)/2,z:(p1.z+p2.z)/2})}this.controls.push([this.points[0],this.points[0]]);for(var i=0;i<this.centers.length-1;i++){var p1=this.centers[i];var p2=this.centers[i+1];var dx=this.points[i+1].x-(this.centers[i].x+this.centers[i+1].x)/2;var dy=this.points[i+1].y-(this.centers[i].y+this.centers[i+1].y)/2;var dz=this.points[i+1].z-(this.centers[i].y+this.centers[i+1].z)/2;this.controls.push([{x:(1-this.sharpness)*this.points[i+1].x+this.sharpness*(this.centers[i].x+dx),y:(1-this.sharpness)*this.points[i+1].y+this.sharpness*(this.centers[i].y+dy),z:(1-this.sharpness)*this.points[i+1].z+this.sharpness*(this.centers[i].z+dz)},{x:(1-this.sharpness)*this.points[i+1].x+this.sharpness*(this.centers[i+1].x+dx),y:(1-this.sharpness)*this.points[i+1].y+this.sharpness*(this.centers[i+1].y+dy),z:(1-this.sharpness)*this.points[i+1].z+this.sharpness*(this.centers[i+1].z+dz)}])}this.controls.push([this.points[this.length-1],this.points[this.length-1]]);this.steps=this.cacheSteps(this.stepLength);return this};Spline.prototype.cacheSteps=function(mindist){var steps=[];var laststep=this.pos(0);steps.push(0);for(var t=0;t<this.duration;t+=10){var step=this.pos(t);var dist=Math.sqrt((step.x-laststep.x)*(step.x-laststep.x)+(step.y-laststep.y)*(step.y-laststep.y)+(step.z-laststep.z)*(step.z-laststep.z));if(dist>mindist){steps.push(t);laststep=step}}return steps};Spline.prototype.vector=function(t){var p1=this.pos(t+10);var p2=this.pos(t-10);return{angle:180*Math.atan2(p1.y-p2.y,p1.x-p2.x)/3.14,speed:Math.sqrt((p2.x-p1.x)*(p2.x-p1.x)+(p2.y-p1.y)*(p2.y-p1.y)+(p2.z-p1.z)*(p2.z-p1.z))}};Spline.prototype.pos=function(time){function bezier(t,p1,c1,c2,p2){var B=function(t){var t2=t*t,t3=t2*t;return[t3,3*t2*(1-t),3*t*(1-t)*(1-t),(1-t)*(1-t)*(1-t)]};var b=B(t);var pos={x:p2.x*b[0]+c2.x*b[1]+c1.x*b[2]+p1.x*b[3],y:p2.y*b[0]+c2.y*b[1]+c1.y*b[2]+p1.y*b[3],z:p2.z*b[0]+c2.z*b[1]+c1.z*b[2]+p1.z*b[3]};return pos}var t=time-this.delay;if(t<0)t=0;if(t>this.duration)t=this.duration-1;var t2=t/this.duration;if(t2>=1)return this.points[this.length-1];var n=Math.floor((this.points.length-1)*t2);var t1=(this.length-1)*t2-n;return bezier(t1,this.points[n],this.controls[n][1],this.controls[n+1][0],this.points[n+1])};module.exports=Spline},{}],15:[function(require,module,exports){var featurecollection=require("turf-featurecollection");var polygon=require("turf-polygon");var combine=require("turf-combine");var jsts=require("jsts");module.exports=function(feature,radius,units){var buffered;switch(units){case"miles":radius=radius/69.047;break;case"feet":radius=radius/364568;break;case"kilometers":radius=radius/111.12;break;case"meters":radius=radius/111120;break;case"degrees":break}if(feature.type==="FeatureCollection"){var multi=combine(feature);multi.properties={};buffered=bufferOp(multi,radius);return buffered}else{buffered=bufferOp(feature,radius);return buffered}};var bufferOp=function(feature,radius){var reader=new jsts.io.GeoJSONReader;var geom=reader.read(JSON.stringify(feature.geometry));var buffered=geom.buffer(radius);var parser=new jsts.io.GeoJSONParser;buffered=parser.write(buffered);if(buffered.type==="MultiPolygon"){buffered={type:"Feature",geometry:buffered,properties:{}};buffered=featurecollection([buffered])}else{buffered=featurecollection([polygon(buffered.coordinates)])}return buffered}},{jsts:16,"turf-combine":23,"turf-featurecollection":71,"turf-polygon":102}],16:[function(require,module,exports){require("javascript.util");var jsts=require("./lib/jsts");module.exports=jsts},{"./lib/jsts":17,"javascript.util":19}],17:[function(require,module,exports){jsts={version:"0.15.0",algorithm:{distance:{},locate:{}},error:{},geom:{util:{}},geomgraph:{index:{}},index:{bintree:{},chain:{},kdtree:{},quadtree:{},strtree:{}},io:{},noding:{snapround:{}},operation:{buffer:{},distance:{},overlay:{snap:{}},polygonize:{},predicate:{},relate:{},union:{},valid:{}},planargraph:{},simplify:{},triangulate:{quadedge:{}},util:{}};if(typeof String.prototype.trim!=="function"){String.prototype.trim=function(){return this.replace(/^\s+|\s+$/g,"")}}jsts.abstractFunc=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.error={};jsts.error.IllegalArgumentError=function(message){this.name="IllegalArgumentError";this.message=message};jsts.error.IllegalArgumentError.prototype=new Error;jsts.error.TopologyError=function(message,pt){this.name="TopologyError";this.message=pt?message+" [ "+pt+" ]":message};jsts.error.TopologyError.prototype=new Error;jsts.error.AbstractMethodInvocationError=function(){this.name="AbstractMethodInvocationError";this.message="Abstract method called, should be implemented in subclass."};jsts.error.AbstractMethodInvocationError.prototype=new Error;jsts.error.NotImplementedError=function(){this.name="NotImplementedError";this.message="This method has not yet been implemented."};jsts.error.NotImplementedError.prototype=new Error;jsts.error.NotRepresentableError=function(message){this.name="NotRepresentableError";this.message=message};jsts.error.NotRepresentableError.prototype=new Error;jsts.error.LocateFailureError=function(message){this.name="LocateFailureError";this.message=message};jsts.error.LocateFailureError.prototype=new Error;if(typeof module!=="undefined")module.exports=jsts;jsts.geom.GeometryFilter=function(){};jsts.geom.GeometryFilter.prototype.filter=function(geom){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.util.PolygonExtracter=function(comps){this.comps=comps};jsts.geom.util.PolygonExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.PolygonExtracter.prototype.comps=null;jsts.geom.util.PolygonExtracter.getPolygons=function(geom,list){if(list===undefined){list=[]}if(geom instanceof jsts.geom.Polygon){list.push(geom)}else if(geom instanceof jsts.geom.GeometryCollection){geom.apply(new jsts.geom.util.PolygonExtracter(list))}return list};jsts.geom.util.PolygonExtracter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Polygon)this.comps.push(geom)};jsts.io.WKTParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.regExes={typeStr:/^\s*(\w+)\s*\(\s*(.*)\s*\)\s*$/,emptyTypeStr:/^\s*(\w+)\s*EMPTY\s*$/,spaces:/\s+/,parenComma:/\)\s*,\s*\(/,doubleParenComma:/\)\s*\)\s*,\s*\(\s*\(/,trimParens:/^\s*\(?(.*?)\)?\s*$/}};jsts.io.WKTParser.prototype.read=function(wkt){var geometry,type,str;wkt=wkt.replace(/[\n\r]/g," ");var matches=this.regExes.typeStr.exec(wkt);if(wkt.search("EMPTY")!==-1){matches=this.regExes.emptyTypeStr.exec(wkt);matches[2]=undefined}if(matches){type=matches[1].toLowerCase();str=matches[2];if(this.parse[type]){geometry=this.parse[type].apply(this,[str])}}if(geometry===undefined)throw new Error("Could not parse WKT "+wkt);return geometry};jsts.io.WKTParser.prototype.write=function(geometry){return this.extractGeometry(geometry)};jsts.io.WKTParser.prototype.extractGeometry=function(geometry){var type=geometry.CLASS_NAME.split(".")[2].toLowerCase();if(!this.extract[type]){return null}var wktType=type.toUpperCase();var data;if(geometry.isEmpty()){data=wktType+" EMPTY"}else{data=wktType+"("+this.extract[type].apply(this,[geometry])+")"}return data};jsts.io.WKTParser.prototype.extract={coordinate:function(coordinate){return coordinate.x+" "+coordinate.y},point:function(point){return point.coordinate.x+" "+point.coordinate.y},multipoint:function(multipoint){var array=[];for(var i=0,len=multipoint.geometries.length;i<len;++i){array.push("("+this.extract.point.apply(this,[multipoint.geometries[i]])+")")}return array.join(",")},linestring:function(linestring){var array=[];for(var i=0,len=linestring.points.length;i<len;++i){array.push(this.extract.coordinate.apply(this,[linestring.points[i]]))}return array.join(",")},multilinestring:function(multilinestring){var array=[];for(var i=0,len=multilinestring.geometries.length;i<len;++i){array.push("("+this.extract.linestring.apply(this,[multilinestring.geometries[i]])+")")}return array.join(",")},polygon:function(polygon){var array=[];array.push("("+this.extract.linestring.apply(this,[polygon.shell])+")");for(var i=0,len=polygon.holes.length;i<len;++i){array.push("("+this.extract.linestring.apply(this,[polygon.holes[i]])+")")}return array.join(",")},multipolygon:function(multipolygon){var array=[];for(var i=0,len=multipolygon.geometries.length;i<len;++i){array.push("("+this.extract.polygon.apply(this,[multipolygon.geometries[i]])+")")}return array.join(",")},geometrycollection:function(collection){var array=[];for(var i=0,len=collection.geometries.length;i<len;++i){array.push(this.extractGeometry.apply(this,[collection.geometries[i]]))}return array.join(",")}};jsts.io.WKTParser.prototype.parse={point:function(str){if(str===undefined){return this.geometryFactory.createPoint(null)}var coords=str.trim().split(this.regExes.spaces);return this.geometryFactory.createPoint(new jsts.geom.Coordinate(coords[0],coords[1]))},multipoint:function(str){if(str===undefined){return this.geometryFactory.createMultiPoint(null)}var point;var points=str.trim().split(",");var components=[];for(var i=0,len=points.length;i<len;++i){point=points[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.point.apply(this,[point]))}return this.geometryFactory.createMultiPoint(components)},linestring:function(str){if(str===undefined){return this.geometryFactory.createLineString(null)}var points=str.trim().split(",");var components=[];var coords;for(var i=0,len=points.length;i<len;++i){coords=points[i].trim().split(this.regExes.spaces);components.push(new jsts.geom.Coordinate(coords[0],coords[1]))}return this.geometryFactory.createLineString(components)},linearring:function(str){if(str===undefined){return this.geometryFactory.createLinearRing(null)}var points=str.trim().split(",");var components=[];var coords;for(var i=0,len=points.length;i<len;++i){coords=points[i].trim().split(this.regExes.spaces);components.push(new jsts.geom.Coordinate(coords[0],coords[1]))}return this.geometryFactory.createLinearRing(components)},multilinestring:function(str){if(str===undefined){return this.geometryFactory.createMultiLineString(null)}var line;var lines=str.trim().split(this.regExes.parenComma);var components=[];for(var i=0,len=lines.length;i<len;++i){line=lines[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.linestring.apply(this,[line]))}return this.geometryFactory.createMultiLineString(components)},polygon:function(str){if(str===undefined){return this.geometryFactory.createPolygon(null)}var ring,linestring,linearring;var rings=str.trim().split(this.regExes.parenComma);var shell;var holes=[];for(var i=0,len=rings.length;i<len;++i){ring=rings[i].replace(this.regExes.trimParens,"$1");linestring=this.parse.linestring.apply(this,[ring]);linearring=this.geometryFactory.createLinearRing(linestring.points);if(i===0){shell=linearring}else{holes.push(linearring)}}return this.geometryFactory.createPolygon(shell,holes)},multipolygon:function(str){if(str===undefined){return this.geometryFactory.createMultiPolygon(null)}var polygon;var polygons=str.trim().split(this.regExes.doubleParenComma);var components=[];for(var i=0,len=polygons.length;i<len;++i){polygon=polygons[i].replace(this.regExes.trimParens,"$1");components.push(this.parse.polygon.apply(this,[polygon]))}return this.geometryFactory.createMultiPolygon(components)},geometrycollection:function(str){if(str===undefined){return this.geometryFactory.createGeometryCollection(null)}str=str.replace(/,\s*([A-Za-z])/g,"|$1");var wktArray=str.trim().split("|");var components=[];for(var i=0,len=wktArray.length;i<len;++i){components.push(jsts.io.WKTParser.prototype.read.apply(this,[wktArray[i]]))}return this.geometryFactory.createGeometryCollection(components)}};jsts.index.ItemVisitor=function(){};jsts.index.ItemVisitor.prototype.visitItem=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.CGAlgorithms=function(){};jsts.algorithm.CGAlgorithms.CLOCKWISE=-1;jsts.algorithm.CGAlgorithms.RIGHT=jsts.algorithm.CGAlgorithms.CLOCKWISE;jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE=1;jsts.algorithm.CGAlgorithms.LEFT=jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE;jsts.algorithm.CGAlgorithms.COLLINEAR=0;jsts.algorithm.CGAlgorithms.STRAIGHT=jsts.algorithm.CGAlgorithms.COLLINEAR;jsts.algorithm.CGAlgorithms.orientationIndex=function(p1,p2,q){var dx1,dy1,dx2,dy2;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dx2=q.x-p2.x;dy2=q.y-p2.y;return jsts.algorithm.RobustDeterminant.signOfDet2x2(dx1,dy1,dx2,dy2)};jsts.algorithm.CGAlgorithms.isPointInRing=function(p,ring){return jsts.algorithm.CGAlgorithms.locatePointInRing(p,ring)!==jsts.geom.Location.EXTERIOR};jsts.algorithm.CGAlgorithms.locatePointInRing=function(p,ring){return jsts.algorithm.RayCrossingCounter.locatePointInRing(p,ring)};jsts.algorithm.CGAlgorithms.isOnLine=function(p,pt){var lineIntersector,i,il,p0,p1;lineIntersector=new jsts.algorithm.RobustLineIntersector;for(i=1,il=pt.length;i<il;i++){p0=pt[i-1];p1=pt[i];lineIntersector.computeIntersection(p,p0,p1);if(lineIntersector.hasIntersection()){return true}}return false};jsts.algorithm.CGAlgorithms.isCCW=function(ring){var nPts,hiPt,hiIndex,p,iPrev,iNext,prev,next,i,disc,isCCW;nPts=ring.length-1;if(nPts<3){throw new jsts.IllegalArgumentError("Ring has fewer than 3 points, so orientation cannot be determined")}hiPt=ring[0];hiIndex=0;i=1;for(i;i<=nPts;i++){p=ring[i];if(p.y>hiPt.y){hiPt=p;hiIndex=i}}iPrev=hiIndex;do{iPrev=iPrev-1;if(iPrev<0){iPrev=nPts}}while(ring[iPrev].equals2D(hiPt)&&iPrev!==hiIndex);iNext=hiIndex;do{iNext=(iNext+1)%nPts}while(ring[iNext].equals2D(hiPt)&&iNext!==hiIndex);prev=ring[iPrev];next=ring[iNext];if(prev.equals2D(hiPt)||next.equals2D(hiPt)||prev.equals2D(next)){return false}disc=jsts.algorithm.CGAlgorithms.computeOrientation(prev,hiPt,next);isCCW=false;if(disc===0){isCCW=prev.x>next.x}else{isCCW=disc>0}return isCCW};jsts.algorithm.CGAlgorithms.computeOrientation=function(p1,p2,q){return jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q)};jsts.algorithm.CGAlgorithms.distancePointLine=function(p,A,B){if(!(A instanceof jsts.geom.Coordinate)){jsts.algorithm.CGAlgorithms.distancePointLine2.apply(this,arguments)}if(A.x===B.x&&A.y===B.y){return p.distance(A)}var r,s;r=((p.x-A.x)*(B.x-A.x)+(p.y-A.y)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));if(r<=0){return p.distance(A)}if(r>=1){return p.distance(B)}s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y))};jsts.algorithm.CGAlgorithms.distancePointLinePerpendicular=function(p,A,B){var s=((A.y-p.y)*(B.x-A.x)-(A.x-p.x)*(B.y-A.y))/((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y));return Math.abs(s)*Math.sqrt((B.x-A.x)*(B.x-A.x)+(B.y-A.y)*(B.y-A.y))};jsts.algorithm.CGAlgorithms.distancePointLine2=function(p,line){var minDistance,i,il,dist;if(line.length===0){throw new jsts.error.IllegalArgumentError("Line array must contain at least one vertex")}minDistance=p.distance(line[0]);for(i=0,il=line.length-1;i<il;i++){dist=jsts.algorithm.CGAlgorithms.distancePointLine(p,line[i],line[i+1]);if(dist<minDistance){minDistance=dist}}return minDistance};jsts.algorithm.CGAlgorithms.distanceLineLine=function(A,B,C,D){if(A.equals(B)){return jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D)}if(C.equals(D)){return jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B)}var r_top,r_bot,s_top,s_bot,s,r;r_top=(A.y-C.y)*(D.x-C.x)-(A.x-C.x)*(D.y-C.y);r_bot=(B.x-A.x)*(D.y-C.y)-(B.y-A.y)*(D.x-C.x);s_top=(A.y-C.y)*(B.x-A.x)-(A.x-C.x)*(B.y-A.y);s_bot=(B.x-A.x)*(D.y-C.y)-(B.y-A.y)*(D.x-C.x);if(r_bot===0||s_bot===0){return Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(B,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(C,A,B),jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B))))}s=s_top/s_bot;r=r_top/r_bot;if(r<0||r>1||s<0||s>1){return Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(A,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(B,C,D),Math.min(jsts.algorithm.CGAlgorithms.distancePointLine(C,A,B),jsts.algorithm.CGAlgorithms.distancePointLine(D,A,B))))}return 0};jsts.algorithm.CGAlgorithms.signedArea=function(ring){if(ring.length<3){return 0}var sum,i,il,bx,by,cx,cy;sum=0;for(i=0,il=ring.length-1;i<il;i++){bx=ring[i].x;by=ring[i].y;cx=ring[i+1].x;cy=ring[i+1].y;sum+=(bx+cx)*(cy-by)}return-sum/2};jsts.algorithm.CGAlgorithms.signedArea=function(ring){var n,sum,p,bx,by,i,cx,cy;n=ring.length;if(n<3){return 0}sum=0;p=ring[0];bx=p.x;by=p.y;for(i=1;i<n;i++){p=ring[i];cx=p.x;cy=p.y;sum+=(bx+cx)*(cy-by);bx=cx;by=cy}return-sum/2};jsts.algorithm.CGAlgorithms.computeLength=function(pts){var n=pts.length,len,x0,y0,x1,y1,dx,dy,p,i,il;if(n<=1){return 0}len=0;p=pts[0];x0=p.x;y0=p.y;i=1,il=n;for(i;i<n;i++){p=pts[i];x1=p.x;y1=p.y;dx=x1-x0;dy=y1-y0;len+=Math.sqrt(dx*dx+dy*dy);x0=x1;y0=y1}return len};jsts.algorithm.CGAlgorithms.length=function(){};jsts.algorithm.Angle=function(){};jsts.algorithm.Angle.PI_TIMES_2=2*Math.PI;jsts.algorithm.Angle.PI_OVER_2=Math.PI/2;jsts.algorithm.Angle.PI_OVER_4=Math.PI/4;jsts.algorithm.Angle.COUNTERCLOCKWISE=jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE;jsts.algorithm.Angle.CLOCKWISE=jsts.algorithm.CGAlgorithms.CLOCKWISE;jsts.algorithm.Angle.NONE=jsts.algorithm.CGAlgorithms.COLLINEAR;jsts.algorithm.Angle.toDegrees=function(radians){return radians*180/Math.PI};jsts.algorithm.Angle.toRadians=function(angleDegrees){return angleDegrees*Math.PI/180};jsts.algorithm.Angle.angle=function(){if(arguments.length===1){return jsts.algorithm.Angle.angleFromOrigo(arguments[0])}else{return jsts.algorithm.Angle.angleBetweenCoords(arguments[0],arguments[1])}};jsts.algorithm.Angle.angleBetweenCoords=function(p0,p1){var dx,dy;dx=p1.x-p0.x;dy=p1.y-p0.y;return Math.atan2(dy,dx)};jsts.algorithm.Angle.angleFromOrigo=function(p){return Math.atan2(p.y,p.x)};jsts.algorithm.Angle.isAcute=function(p0,p1,p2){var dx0,dy0,dx1,dy1,dotprod;dx0=p0.x-p1.x;dy0=p0.y-p1.y;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dotprod=dx0*dx1+dy0*dy1;return dotprod>0};jsts.algorithm.Angle.isObtuse=function(p0,p1,p2){var dx0,dy0,dx1,dy1,dotprod;dx0=p0.x-p1.x;dy0=p0.y-p1.y;dx1=p2.x-p1.x;dy1=p2.y-p1.y;dotprod=dx0*dx1+dy0*dy1;return dotprod<0};jsts.algorithm.Angle.angleBetween=function(tip1,tail,tip2){var a1,a2;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);return jsts.algorithm.Angle.diff(a1,a2)};jsts.algorithm.Angle.angleBetweenOriented=function(tip1,tail,tip2){var a1,a2,angDel;a1=jsts.algorithm.Angle.angle(tail,tip1);a2=jsts.algorithm.Angle.angle(tail,tip2);angDel=a2-a1;if(angDel<=-Math.PI){return angDel+jsts.algorithm.Angle.PI_TIMES_2}if(angDel>Math.PI){return angDel-jsts.algorithm.Angle.PI_TIMES_2}return angDel};jsts.algorithm.Angle.interiorAngle=function(p0,p1,p2){var anglePrev,angleNext;anglePrev=jsts.algorithm.Angle.angle(p1,p0);angleNext=jsts.algorithm.Angle.angle(p1,p2);return Math.abs(angleNext-anglePrev)};jsts.algorithm.Angle.getTurn=function(ang1,ang2){var crossproduct=Math.sin(ang2-ang1);if(crossproduct>0){return jsts.algorithm.Angle.COUNTERCLOCKWISE}if(crossproduct<0){return jsts.algorithm.Angle.CLOCKWISE}return jsts.algorithm.Angle.NONE};jsts.algorithm.Angle.normalize=function(angle){while(angle>Math.PI){angle-=jsts.algorithm.Angle.PI_TIMES_2}while(angle<=-Math.PI){angle+=jsts.algorithm.Angle.PI_TIMES_2}return angle};jsts.algorithm.Angle.normalizePositive=function(angle){if(angle<0){while(angle<0){angle+=jsts.algorithm.Angle.PI_TIMES_2}if(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle=0}}else{while(angle>=jsts.algorithm.Angle.PI_TIMES_2){angle-=jsts.algorithm.Angle.PI_TIMES_2}if(angle<0){angle=0}}return angle};jsts.algorithm.Angle.diff=function(ang1,ang2){var delAngle;if(ang1<ang2){delAngle=ang2-ang1}else{delAngle=ang1-ang2}if(delAngle>Math.PI){delAngle=2*Math.PI-delAngle}return delAngle};jsts.geom.GeometryComponentFilter=function(){};jsts.geom.GeometryComponentFilter.prototype.filter=function(geom){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.util.LinearComponentExtracter=function(lines,isForcedToLineString){this.lines=lines;this.isForcedToLineString=isForcedToLineString};jsts.geom.util.LinearComponentExtracter.prototype=new jsts.geom.GeometryComponentFilter;jsts.geom.util.LinearComponentExtracter.prototype.lines=null;jsts.geom.util.LinearComponentExtracter.prototype.isForcedToLineString=false;jsts.geom.util.LinearComponentExtracter.getLines=function(geoms,lines){if(arguments.length==1){return jsts.geom.util.LinearComponentExtracter.getLines5.apply(this,arguments)}else if(arguments.length==2&&typeof lines==="boolean"){return jsts.geom.util.LinearComponentExtracter.getLines6.apply(this,arguments)}else if(arguments.length==2&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines3.apply(this,arguments)}else if(arguments.length==3&&geoms instanceof jsts.geom.Geometry){return jsts.geom.util.LinearComponentExtracter.getLines4.apply(this,arguments)}else if(arguments.length==3){return jsts.geom.util.LinearComponentExtracter.getLines2.apply(this,arguments)}for(var i=0;i<geoms.length;i++){var g=geoms[i];jsts.geom.util.LinearComponentExtracter.getLines3(g,lines)}return lines};jsts.geom.util.LinearComponentExtracter.getLines2=function(geoms,lines,forceToLineString){for(var i=0;i<geoms.length;i++){var g=geoms[i];jsts.geom.util.LinearComponentExtracter.getLines4(g,lines,forceToLineString)}return lines};jsts.geom.util.LinearComponentExtracter.getLines3=function(geom,lines){if(geom instanceof LineString){lines.add(geom)}else{geom.apply(new jsts.geom.util.LinearComponentExtracter(lines))}return lines};jsts.geom.util.LinearComponentExtracter.getLines4=function(geom,lines,forceToLineString){geom.apply(new jsts.geom.util.LinearComponentExtracter(lines,forceToLineString));return lines};jsts.geom.util.LinearComponentExtracter.getLines5=function(geom){return jsts.geom.util.LinearComponentExtracter.getLines6(geom,false)};jsts.geom.util.LinearComponentExtracter.getLines6=function(geom,forceToLineString){var lines=[];geom.apply(new jsts.geom.util.LinearComponentExtracter(lines,forceToLineString));return lines};jsts.geom.util.LinearComponentExtracter.prototype.setForceToLineString=function(isForcedToLineString){this.isForcedToLineString=isForcedToLineString};jsts.geom.util.LinearComponentExtracter.prototype.filter=function(geom){if(this.isForcedToLineString&&geom instanceof jsts.geom.LinearRing){var line=geom.getFactory().createLineString(geom.getCoordinateSequence());this.lines.push(line);return}if(geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.LinearRing)this.lines.push(geom)};jsts.geom.Location=function(){};jsts.geom.Location.INTERIOR=0;jsts.geom.Location.BOUNDARY=1;jsts.geom.Location.EXTERIOR=2;jsts.geom.Location.NONE=-1;jsts.geom.Location.toLocationSymbol=function(locationValue){switch(locationValue){case jsts.geom.Location.EXTERIOR:return"e";case jsts.geom.Location.BOUNDARY:return"b";case jsts.geom.Location.INTERIOR:return"i";case jsts.geom.Location.NONE:return"-"}throw new jsts.IllegalArgumentError("Unknown location value: "+locationValue)};(function(){jsts.io.GeoJSONReader=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.precisionModel=this.geometryFactory.getPrecisionModel();this.parser=new jsts.io.GeoJSONParser(this.geometryFactory)};jsts.io.GeoJSONReader.prototype.read=function(geoJson){var geometry=this.parser.read(geoJson);if(this.precisionModel.getType()===jsts.geom.PrecisionModel.FIXED){this.reducePrecision(geometry)}return geometry};jsts.io.GeoJSONReader.prototype.reducePrecision=function(geometry){var i,len;if(geometry.coordinate){this.precisionModel.makePrecise(geometry.coordinate)}else if(geometry.points){for(i=0,len=geometry.points.length;i<len;i++){this.precisionModel.makePrecise(geometry.points[i])}}else if(geometry.geometries){for(i=0,len=geometry.geometries.length;i<len;i++){this.reducePrecision(geometry.geometries[i])}}}})();jsts.geom.Geometry=function(factory){this.factory=factory};jsts.geom.Geometry.prototype.envelope=null;jsts.geom.Geometry.prototype.factory=null;jsts.geom.Geometry.prototype.getGeometryType=function(){return"Geometry"};jsts.geom.Geometry.hasNonEmptyElements=function(geometries){var i;for(i=0;i<geometries.length;i++){if(!geometries[i].isEmpty()){return true}}return false};jsts.geom.Geometry.hasNullElements=function(array){var i;for(i=0;i<array.length;i++){if(array[i]===null){return true}}return false};jsts.geom.Geometry.prototype.getFactory=function(){if(this.factory===null||this.factory===undefined){this.factory=new jsts.geom.GeometryFactory}return this.factory};jsts.geom.Geometry.prototype.getNumGeometries=function(){return 1};jsts.geom.Geometry.prototype.getGeometryN=function(n){return this};jsts.geom.Geometry.prototype.getPrecisionModel=function(){return this.getFactory().getPrecisionModel()};jsts.geom.Geometry.prototype.getCoordinate=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getCoordinates=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getNumPoints=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.isSimple=function(){this.checkNotGeometryCollection(this);var op=new jsts.operation.IsSimpleOp(this);return op.isSimple()};jsts.geom.Geometry.prototype.isValid=function(){var isValidOp=new jsts.operation.valid.IsValidOp(this);return isValidOp.isValid()};jsts.geom.Geometry.prototype.isEmpty=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.distance=function(g){return jsts.operation.distance.DistanceOp.distance(this,g)};jsts.geom.Geometry.prototype.isWithinDistance=function(geom,distance){var envDist=this.getEnvelopeInternal().distance(geom.getEnvelopeInternal());if(envDist>distance){return false}return DistanceOp.isWithinDistance(this,geom,distance)};jsts.geom.Geometry.prototype.isRectangle=function(){return false};jsts.geom.Geometry.prototype.getArea=function(){return 0};jsts.geom.Geometry.prototype.getLength=function(){return 0};jsts.geom.Geometry.prototype.getCentroid=function(){if(this.isEmpty()){return null}var cent;var centPt=null;var dim=this.getDimension();if(dim===0){cent=new jsts.algorithm.CentroidPoint;cent.add(this);centPt=cent.getCentroid()}else if(dim===1){cent=new jsts.algorithm.CentroidLine;cent.add(this);centPt=cent.getCentroid()}else{cent=new jsts.algorithm.CentroidArea;cent.add(this);centPt=cent.getCentroid()}return this.createPointFromInternalCoord(centPt,this)};jsts.geom.Geometry.prototype.getInteriorPoint=function(){var intPt;var interiorPt=null;var dim=this.getDimension();if(dim===0){intPt=new jsts.algorithm.InteriorPointPoint(this);interiorPt=intPt.getInteriorPoint()}else if(dim===1){intPt=new jsts.algorithm.InteriorPointLine(this);interiorPt=intPt.getInteriorPoint()}else{intPt=new jsts.algorithm.InteriorPointArea(this);interiorPt=intPt.getInteriorPoint()}return this.createPointFromInternalCoord(interiorPt,this)};jsts.geom.Geometry.prototype.getDimension=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getBoundary=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getBoundaryDimension=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.getEnvelope=function(){return this.getFactory().toGeometry(this.getEnvelopeInternal())};jsts.geom.Geometry.prototype.getEnvelopeInternal=function(){if(this.envelope===null){this.envelope=this.computeEnvelopeInternal()}return this.envelope};jsts.geom.Geometry.prototype.disjoint=function(g){return!this.intersects(g)};jsts.geom.Geometry.prototype.touches=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isTouches(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.intersects=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return jsts.operation.predicate.RectangleIntersects.intersects(this,g)}if(g.isRectangle()){return jsts.operation.predicate.RectangleIntersects.intersects(g,this)}return this.relate(g).isIntersects()};jsts.geom.Geometry.prototype.crosses=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isCrosses(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.within=function(g){return g.contains(this)};jsts.geom.Geometry.prototype.contains=function(g){if(!this.getEnvelopeInternal().contains(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return jsts.operation.predicate.RectangleContains.contains(this,g)}return this.relate(g).isContains()};jsts.geom.Geometry.prototype.overlaps=function(g){if(!this.getEnvelopeInternal().intersects(g.getEnvelopeInternal())){return false}return this.relate(g).isOverlaps(this.getDimension(),g.getDimension());
};jsts.geom.Geometry.prototype.covers=function(g){if(!this.getEnvelopeInternal().covers(g.getEnvelopeInternal())){return false}if(this.isRectangle()){return true}return this.relate(g).isCovers()};jsts.geom.Geometry.prototype.coveredBy=function(g){return g.covers(this)};jsts.geom.Geometry.prototype.relate=function(g,intersectionPattern){if(arguments.length===1){return this.relate2.apply(this,arguments)}return this.relate2(g).matches(intersectionPattern)};jsts.geom.Geometry.prototype.relate2=function(g){this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(g);return jsts.operation.relate.RelateOp.relate(this,g)};jsts.geom.Geometry.prototype.equalsTopo=function(g){if(!this.getEnvelopeInternal().equals(g.getEnvelopeInternal())){return false}return this.relate(g).isEquals(this.getDimension(),g.getDimension())};jsts.geom.Geometry.prototype.equals=function(o){if(o instanceof jsts.geom.Geometry||o instanceof jsts.geom.LinearRing||o instanceof jsts.geom.Polygon||o instanceof jsts.geom.GeometryCollection||o instanceof jsts.geom.MultiPoint||o instanceof jsts.geom.MultiLineString||o instanceof jsts.geom.MultiPolygon){return this.equalsExact(o)}return false};jsts.geom.Geometry.prototype.buffer=function(distance,quadrantSegments,endCapStyle){var params=new jsts.operation.buffer.BufferParameters(quadrantSegments,endCapStyle);return jsts.operation.buffer.BufferOp.bufferOp2(this,distance,params)};jsts.geom.Geometry.prototype.convexHull=function(){return new jsts.algorithm.ConvexHull(this).getConvexHull()};jsts.geom.Geometry.prototype.intersection=function(other){if(this.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(other.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(this.isGeometryCollection(this)){var g2=other}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.INTERSECTION)};jsts.geom.Geometry.prototype.union=function(other){if(arguments.length===0){return jsts.operation.union.UnaryUnionOp.union(this)}if(this.isEmpty()){return other.clone()}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.UNION)};jsts.geom.Geometry.prototype.difference=function(other){if(this.isEmpty()){return this.getFactory().createGeometryCollection(null)}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.DIFFERENCE)};jsts.geom.Geometry.prototype.symDifference=function(other){if(this.isEmpty()){return other.clone()}if(other.isEmpty()){return this.clone()}this.checkNotGeometryCollection(this);this.checkNotGeometryCollection(other);return jsts.operation.overlay.snap.SnapIfNeededOverlayOp.overlayOp(this,other,jsts.operation.overlay.OverlayOp.SYMDIFFERENCE)};jsts.geom.Geometry.prototype.equalsExact=function(other,tolerance){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.equalsNorm=function(g){if(g===null||g===undefined)return false;return this.norm().equalsExact(g.norm())};jsts.geom.Geometry.prototype.apply=function(filter){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.clone=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.normalize=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.norm=function(){var copy=this.clone();copy.normalize();return copy};jsts.geom.Geometry.prototype.compareTo=function(o){var other=o;if(this.getClassSortIndex()!==other.getClassSortIndex()){return this.getClassSortIndex()-other.getClassSortIndex()}if(this.isEmpty()&&other.isEmpty()){return 0}if(this.isEmpty()){return-1}if(other.isEmpty()){return 1}return this.compareToSameClass(o)};jsts.geom.Geometry.prototype.isEquivalentClass=function(other){if(this instanceof jsts.geom.Point&&other instanceof jsts.geom.Point){return true}else if(this instanceof jsts.geom.LineString&&other instanceof jsts.geom.LineString|other instanceof jsts.geom.LinearRing){return true}else if(this instanceof jsts.geom.LinearRing&&other instanceof jsts.geom.LineString|other instanceof jsts.geom.LinearRing){return true}else if(this instanceof jsts.geom.Polygon&&other instanceof jsts.geom.Polygon){return true}else if(this instanceof jsts.geom.MultiPoint&&other instanceof jsts.geom.MultiPoint){return true}else if(this instanceof jsts.geom.MultiLineString&&other instanceof jsts.geom.MultiLineString){return true}else if(this instanceof jsts.geom.MultiPolygon&&other instanceof jsts.geom.MultiPolygon){return true}else if(this instanceof jsts.geom.GeometryCollection&&other instanceof jsts.geom.GeometryCollection){return true}return false};jsts.geom.Geometry.prototype.checkNotGeometryCollection=function(g){if(g.isGeometryCollectionBase()){throw new jsts.error.IllegalArgumentError("This method does not support GeometryCollection")}};jsts.geom.Geometry.prototype.isGeometryCollection=function(){return this instanceof jsts.geom.GeometryCollection};jsts.geom.Geometry.prototype.isGeometryCollectionBase=function(){return this.CLASS_NAME==="jsts.geom.GeometryCollection"};jsts.geom.Geometry.prototype.computeEnvelopeInternal=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.compareToSameClass=function(o){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.Geometry.prototype.compare=function(a,b){var i=a.iterator();var j=b.iterator();while(i.hasNext()&&j.hasNext()){var aElement=i.next();var bElement=j.next();var comparison=aElement.compareTo(bElement);if(comparison!==0){return comparison}}if(i.hasNext()){return 1}if(j.hasNext()){return-1}return 0};jsts.geom.Geometry.prototype.equal=function(a,b,tolerance){if(tolerance===undefined||tolerance===null||tolerance===0){return a.equals(b)}return a.distance(b)<=tolerance};jsts.geom.Geometry.prototype.getClassSortIndex=function(){var sortedClasses=[jsts.geom.Point,jsts.geom.MultiPoint,jsts.geom.LineString,jsts.geom.LinearRing,jsts.geom.MultiLineString,jsts.geom.Polygon,jsts.geom.MultiPolygon,jsts.geom.GeometryCollection];for(var i=0;i<sortedClasses.length;i++){if(this instanceof sortedClasses[i])return i}jsts.util.Assert.shouldNeverReachHere("Class not supported: "+this);return-1};jsts.geom.Geometry.prototype.toString=function(){return(new jsts.io.WKTWriter).write(this)};jsts.geom.Geometry.prototype.createPointFromInternalCoord=function(coord,exemplar){exemplar.getPrecisionModel().makePrecise(coord);return exemplar.getFactory().createPoint(coord)};(function(){jsts.geom.Coordinate=function(x,y){if(typeof x==="number"){this.x=x;this.y=y}else if(x instanceof jsts.geom.Coordinate){this.x=parseFloat(x.x);this.y=parseFloat(x.y)}else if(x===undefined||x===null){this.x=0;this.y=0}else if(typeof x==="string"){this.x=parseFloat(x);this.y=parseFloat(y)}};jsts.geom.Coordinate.prototype.setCoordinate=function(other){this.x=other.x;this.y=other.y};jsts.geom.Coordinate.prototype.clone=function(){return new jsts.geom.Coordinate(this.x,this.y)};jsts.geom.Coordinate.prototype.distance=function(p){var dx=this.x-p.x;var dy=this.y-p.y;return Math.sqrt(dx*dx+dy*dy)};jsts.geom.Coordinate.prototype.equals2D=function(other){if(this.x!==other.x){return false}if(this.y!==other.y){return false}return true};jsts.geom.Coordinate.prototype.equals=function(other){if(!other instanceof jsts.geom.Coordinate||other===undefined){return false}return this.equals2D(other)};jsts.geom.Coordinate.prototype.compareTo=function(other){if(this.x<other.x){return-1}if(this.x>other.x){return 1}if(this.y<other.y){return-1}if(this.y>other.y){return 1}return 0};jsts.geom.Coordinate.prototype.toString=function(){return"("+this.x+", "+this.y+")"}})();jsts.geom.Envelope=function(){jsts.geom.Envelope.prototype.init.apply(this,arguments)};jsts.geom.Envelope.prototype.minx=null;jsts.geom.Envelope.prototype.maxx=null;jsts.geom.Envelope.prototype.miny=null;jsts.geom.Envelope.prototype.maxy=null;jsts.geom.Envelope.prototype.init=function(){if(typeof arguments[0]==="number"&&arguments.length===4){this.initFromValues(arguments[0],arguments[1],arguments[2],arguments[3])}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===1){this.initFromCoordinate(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate&&arguments.length===2){this.initFromCoordinates(arguments[0],arguments[1])}else if(arguments[0]instanceof jsts.geom.Envelope&&arguments.length===1){this.initFromEnvelope(arguments[0])}else{this.setToNull()}};jsts.geom.Envelope.prototype.initFromValues=function(x1,x2,y1,y2){if(x1<x2){this.minx=x1;this.maxx=x2}else{this.minx=x2;this.maxx=x1}if(y1<y2){this.miny=y1;this.maxy=y2}else{this.miny=y2;this.maxy=y1}};jsts.geom.Envelope.prototype.initFromCoordinates=function(p1,p2){this.initFromValues(p1.x,p2.x,p1.y,p2.y)};jsts.geom.Envelope.prototype.initFromCoordinate=function(p){this.initFromValues(p.x,p.x,p.y,p.y)};jsts.geom.Envelope.prototype.initFromEnvelope=function(env){this.minx=env.minx;this.maxx=env.maxx;this.miny=env.miny;this.maxy=env.maxy};jsts.geom.Envelope.prototype.setToNull=function(){this.minx=0;this.maxx=-1;this.miny=0;this.maxy=-1};jsts.geom.Envelope.prototype.isNull=function(){return this.maxx<this.minx};jsts.geom.Envelope.prototype.getHeight=function(){if(this.isNull()){return 0}return this.maxy-this.miny};jsts.geom.Envelope.prototype.getWidth=function(){if(this.isNull()){return 0}return this.maxx-this.minx};jsts.geom.Envelope.prototype.getMinX=function(){return this.minx};jsts.geom.Envelope.prototype.getMaxX=function(){return this.maxx};jsts.geom.Envelope.prototype.getMinY=function(){return this.miny};jsts.geom.Envelope.prototype.getMaxY=function(){return this.maxy};jsts.geom.Envelope.prototype.getArea=function(){return this.getWidth()*this.getHeight()};jsts.geom.Envelope.prototype.expandToInclude=function(){if(arguments[0]instanceof jsts.geom.Coordinate){this.expandToIncludeCoordinate(arguments[0])}else if(arguments[0]instanceof jsts.geom.Envelope){this.expandToIncludeEnvelope(arguments[0])}else{this.expandToIncludeValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.expandToIncludeCoordinate=function(p){this.expandToIncludeValues(p.x,p.y)};jsts.geom.Envelope.prototype.expandToIncludeValues=function(x,y){if(this.isNull()){this.minx=x;this.maxx=x;this.miny=y;this.maxy=y}else{if(x<this.minx){this.minx=x}if(x>this.maxx){this.maxx=x}if(y<this.miny){this.miny=y}if(y>this.maxy){this.maxy=y}}};jsts.geom.Envelope.prototype.expandToIncludeEnvelope=function(other){if(other.isNull()){return}if(this.isNull()){this.minx=other.getMinX();this.maxx=other.getMaxX();this.miny=other.getMinY();this.maxy=other.getMaxY()}else{if(other.minx<this.minx){this.minx=other.minx}if(other.maxx>this.maxx){this.maxx=other.maxx}if(other.miny<this.miny){this.miny=other.miny}if(other.maxy>this.maxy){this.maxy=other.maxy}}};jsts.geom.Envelope.prototype.expandBy=function(){if(arguments.length===1){this.expandByDistance(arguments[0])}else{this.expandByDistances(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.expandByDistance=function(distance){this.expandByDistances(distance,distance)};jsts.geom.Envelope.prototype.expandByDistances=function(deltaX,deltaY){if(this.isNull()){return}this.minx-=deltaX;this.maxx+=deltaX;this.miny-=deltaY;this.maxy+=deltaY;if(this.minx>this.maxx||this.miny>this.maxy){this.setToNull()}};jsts.geom.Envelope.prototype.translate=function(transX,transY){if(this.isNull()){return}this.init(this.minx+transX,this.maxx+transX,this.miny+transY,this.maxy+transY)};jsts.geom.Envelope.prototype.centre=function(){if(this.isNull()){return null}return new jsts.geom.Coordinate((this.minx+this.maxx)/2,(this.miny+this.maxy)/2)};jsts.geom.Envelope.prototype.intersection=function(env){if(this.isNull()||env.isNull()||!this.intersects(env)){return new jsts.geom.Envelope}var intMinX=this.minx>env.minx?this.minx:env.minx;var intMinY=this.miny>env.miny?this.miny:env.miny;var intMaxX=this.maxx<env.maxx?this.maxx:env.maxx;var intMaxY=this.maxy<env.maxy?this.maxy:env.maxy;return new jsts.geom.Envelope(intMinX,intMaxX,intMinY,intMaxY)};jsts.geom.Envelope.prototype.intersects=function(){if(arguments[0]instanceof jsts.geom.Envelope){return this.intersectsEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){return this.intersectsCoordinate(arguments[0])}else{return this.intersectsValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.intersectsEnvelope=function(other){if(this.isNull()||other.isNull()){return false}var result=!(other.minx>this.maxx||other.maxx<this.minx||other.miny>this.maxy||other.maxy<this.miny);return result};jsts.geom.Envelope.prototype.intersectsCoordinate=function(p){return this.intersectsValues(p.x,p.y)};jsts.geom.Envelope.prototype.intersectsValues=function(x,y){if(this.isNull()){return false}return!(x>this.maxx||x<this.minx||y>this.maxy||y<this.miny)};jsts.geom.Envelope.prototype.contains=function(){if(arguments[0]instanceof jsts.geom.Envelope){return this.containsEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){return this.containsCoordinate(arguments[0])}else{return this.containsValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.containsEnvelope=function(other){return this.coversEnvelope(other)};jsts.geom.Envelope.prototype.containsCoordinate=function(p){return this.coversCoordinate(p)};jsts.geom.Envelope.prototype.containsValues=function(x,y){return this.coversValues(x,y)};jsts.geom.Envelope.prototype.covers=function(){if(arguments[0]instanceof jsts.geom.Envelope){return this.coversEnvelope(arguments[0])}else if(arguments[0]instanceof jsts.geom.Coordinate){return this.coversCoordinate(arguments[0])}else{return this.coversValues(arguments[0],arguments[1])}};jsts.geom.Envelope.prototype.coversValues=function(x,y){if(this.isNull()){return false}return x>=this.minx&&x<=this.maxx&&y>=this.miny&&y<=this.maxy};jsts.geom.Envelope.prototype.coversCoordinate=function(p){return this.coversValues(p.x,p.y)};jsts.geom.Envelope.prototype.coversEnvelope=function(other){if(this.isNull()||other.isNull()){return false}return other.minx>=this.minx&&other.maxx<=this.maxx&&other.miny>=this.miny&&other.maxy<=this.maxy};jsts.geom.Envelope.prototype.distance=function(env){if(this.intersects(env)){return 0}var dx=0;if(this.maxx<env.minx){dx=env.minx-this.maxx}if(this.minx>env.maxx){dx=this.minx-env.maxx}var dy=0;if(this.maxy<env.miny){dy=env.miny-this.maxy}if(this.miny>env.maxy){dy=this.miny-env.maxy}if(dx===0){return dy}if(dy===0){return dx}return Math.sqrt(dx*dx+dy*dy)};jsts.geom.Envelope.prototype.equals=function(other){if(this.isNull()){return other.isNull()}return this.maxx===other.maxx&&this.maxy===other.maxy&&this.minx===other.minx&&this.miny===other.miny};jsts.geom.Envelope.prototype.toString=function(){return"Env["+this.minx+" : "+this.maxx+", "+this.miny+" : "+this.maxy+"]"};jsts.geom.Envelope.intersects=function(p1,p2,q){if(arguments.length===4){return jsts.geom.Envelope.intersectsEnvelope(arguments[0],arguments[1],arguments[2],arguments[3])}var xc1=p1.x<p2.x?p1.x:p2.x;var xc2=p1.x>p2.x?p1.x:p2.x;var yc1=p1.y<p2.y?p1.y:p2.y;var yc2=p1.y>p2.y?p1.y:p2.y;if(q.x>=xc1&&q.x<=xc2&&(q.y>=yc1&&q.y<=yc2)){return true}return false};jsts.geom.Envelope.intersectsEnvelope=function(p1,p2,q1,q2){var minq=Math.min(q1.x,q2.x);var maxq=Math.max(q1.x,q2.x);var minp=Math.min(p1.x,p2.x);var maxp=Math.max(p1.x,p2.x);if(minp>maxq){return false}if(maxp<minq){return false}minq=Math.min(q1.y,q2.y);maxq=Math.max(q1.y,q2.y);minp=Math.min(p1.y,p2.y);maxp=Math.max(p1.y,p2.y);if(minp>maxq){return false}if(maxp<minq){return false}return true};jsts.geom.Envelope.prototype.clone=function(){return new jsts.geom.Envelope(this.minx,this.maxx,this.miny,this.maxy)};jsts.geom.util.GeometryCombiner=function(geoms){this.geomFactory=jsts.geom.util.GeometryCombiner.extractFactory(geoms);this.inputGeoms=geoms};jsts.geom.util.GeometryCombiner.combine=function(geoms){if(arguments.length>1)return this.combine2.apply(this,arguments);var combiner=new jsts.geom.util.GeometryCombiner(geoms);return combiner.combine()};jsts.geom.util.GeometryCombiner.combine2=function(){var arrayList=new javascript.util.ArrayList;Array.prototype.slice.call(arguments).forEach(function(a){arrayList.add(a)});var combiner=new jsts.geom.util.GeometryCombiner(arrayList);return combiner.combine()};jsts.geom.util.GeometryCombiner.prototype.geomFactory=null;jsts.geom.util.GeometryCombiner.prototype.skipEmpty=false;jsts.geom.util.GeometryCombiner.prototype.inputGeoms;jsts.geom.util.GeometryCombiner.extractFactory=function(geoms){if(geoms.isEmpty())return null;return geoms.iterator().next().getFactory()};jsts.geom.util.GeometryCombiner.prototype.combine=function(){var elems=new javascript.util.ArrayList,i;for(i=this.inputGeoms.iterator();i.hasNext();){var g=i.next();this.extractElements(g,elems)}if(elems.size()===0){if(this.geomFactory!==null){return this.geomFactory.createGeometryCollection(null)}return null}return this.geomFactory.buildGeometry(elems)};jsts.geom.util.GeometryCombiner.prototype.extractElements=function(geom,elems){if(geom===null){return}for(var i=0;i<geom.getNumGeometries();i++){var elemGeom=geom.getGeometryN(i);if(this.skipEmpty&&elemGeom.isEmpty()){continue}elems.add(elemGeom)}};jsts.geom.PrecisionModel=function(modelType){if(typeof modelType==="number"){this.modelType=jsts.geom.PrecisionModel.FIXED;this.scale=modelType;return}this.modelType=modelType||jsts.geom.PrecisionModel.FLOATING;if(this.modelType===jsts.geom.PrecisionModel.FIXED){this.scale=1}};jsts.geom.PrecisionModel.FLOATING="FLOATING";jsts.geom.PrecisionModel.FIXED="FIXED";jsts.geom.PrecisionModel.FLOATING_SINGLE="FLOATING_SINGLE";jsts.geom.PrecisionModel.prototype.scale=null;jsts.geom.PrecisionModel.prototype.modelType=null;jsts.geom.PrecisionModel.prototype.isFloating=function(){return this.modelType===jsts.geom.PrecisionModel.FLOATING||this.modelType===jsts.geom.PrecisionModel.FLOATING_SINLGE};jsts.geom.PrecisionModel.prototype.getScale=function(){return this.scale};jsts.geom.PrecisionModel.prototype.getType=function(){return this.modelType};jsts.geom.PrecisionModel.prototype.equals=function(other){return true;if(!(other instanceof jsts.geom.PrecisionModel)){return false}var otherPrecisionModel=other;return this.modelType===otherPrecisionModel.modelType&&this.scale===otherPrecisionModel.scale};jsts.geom.PrecisionModel.prototype.makePrecise=function(val){if(val instanceof jsts.geom.Coordinate){this.makePrecise2(val);return}if(isNaN(val))return val;if(this.modelType===jsts.geom.PrecisionModel.FIXED){return Math.round(val*this.scale)/this.scale}return val};jsts.geom.PrecisionModel.prototype.makePrecise2=function(coord){if(this.modelType===jsts.geom.PrecisionModel.FLOATING)return;coord.x=this.makePrecise(coord.x);coord.y=this.makePrecise(coord.y)};jsts.geom.PrecisionModel.prototype.compareTo=function(o){var other=o;return 0};jsts.geom.CoordinateFilter=function(){};jsts.geom.CoordinateFilter.prototype.filter=function(coord){throw new jsts.error.AbstractMethodInvocationError};jsts.simplify.DouglasPeuckerLineSimplifier=function(pts){this.pts=pts;this.seg=new jsts.geom.LineSegment};jsts.simplify.DouglasPeuckerLineSimplifier.prototype.pts=null;jsts.simplify.DouglasPeuckerLineSimplifier.prototype.usePt=null;jsts.simplify.DouglasPeuckerLineSimplifier.prototype.distanceTolerance=null;jsts.simplify.DouglasPeuckerLineSimplifier.simplify=function(pts,distanceTolerance){var simp=new jsts.simplify.DouglasPeuckerLineSimplifier(pts);simp.setDistanceTolerance(distanceTolerance);return simp.simplify()};jsts.simplify.DouglasPeuckerLineSimplifier.prototype.setDistanceTolerance=function(distanceTolerance){this.distanceTolerance=distanceTolerance};jsts.simplify.DouglasPeuckerLineSimplifier.prototype.simplify=function(){this.usePt=[];for(var i=0;i<this.pts.length;i++){this.usePt[i]=true}this.simplifySection(0,this.pts.length-1);var coordList=new jsts.geom.CoordinateList;for(var j=0;j<this.pts.length;j++){if(this.usePt[j]){coordList.add(new jsts.geom.Coordinate(this.pts[j]))}}return coordList.toCoordinateArray()};jsts.simplify.DouglasPeuckerLineSimplifier.prototype.seg=null;jsts.simplify.DouglasPeuckerLineSimplifier.prototype.simplifySection=function(i,j){if(i+1==j){return}this.seg.p0=this.pts[i];this.seg.p1=this.pts[j];var maxDistance=-1;var maxIndex=i;for(var k=i+1;k<j;k++){var distance=this.seg.distance(this.pts[k]);if(distance>maxDistance){maxDistance=distance;maxIndex=k}}if(maxDistance<=this.distanceTolerance){for(var l=i+1;l<j;l++){this.usePt[l]=false}}else{this.simplifySection(i,maxIndex);this.simplifySection(maxIndex,j)}};jsts.geomgraph.EdgeIntersection=function(coord,segmentIndex,dist){this.coord=new jsts.geom.Coordinate(coord);this.segmentIndex=segmentIndex;this.dist=dist};jsts.geomgraph.EdgeIntersection.prototype.coord=null;jsts.geomgraph.EdgeIntersection.prototype.segmentIndex=null;jsts.geomgraph.EdgeIntersection.prototype.dist=null;jsts.geomgraph.EdgeIntersection.prototype.getCoordinate=function(){return this.coord};jsts.geomgraph.EdgeIntersection.prototype.getSegmentIndex=function(){return this.segmentIndex};jsts.geomgraph.EdgeIntersection.prototype.getDistance=function(){return this.dist};jsts.geomgraph.EdgeIntersection.prototype.compareTo=function(other){return this.compare(other.segmentIndex,other.dist)};jsts.geomgraph.EdgeIntersection.prototype.compare=function(segmentIndex,dist){if(this.segmentIndex<segmentIndex)return-1;if(this.segmentIndex>segmentIndex)return 1;if(this.dist<dist)return-1;if(this.dist>dist)return 1;return 0};jsts.geomgraph.EdgeIntersection.prototype.isEndPoint=function(maxSegmentIndex){if(this.segmentIndex===0&&this.dist===0)return true;if(this.segmentIndex===maxSegmentIndex)return true;return false};jsts.geomgraph.EdgeIntersection.prototype.toString=function(){return""+this.segmentIndex+this.dist};(function(){var EdgeIntersection=jsts.geomgraph.EdgeIntersection;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.EdgeIntersectionList=function(edge){this.nodeMap=new TreeMap;this.edge=edge};jsts.geomgraph.EdgeIntersectionList.prototype.nodeMap=null;jsts.geomgraph.EdgeIntersectionList.prototype.edge=null;jsts.geomgraph.EdgeIntersectionList.prototype.isIntersection=function(pt){for(var it=this.iterator();it.hasNext();){var ei=it.next();if(ei.coord.equals(pt)){return true}}return false};jsts.geomgraph.EdgeIntersectionList.prototype.add=function(intPt,segmentIndex,dist){var eiNew=new EdgeIntersection(intPt,segmentIndex,dist);var ei=this.nodeMap.get(eiNew);if(ei!==null){return ei}this.nodeMap.put(eiNew,eiNew);return eiNew};jsts.geomgraph.EdgeIntersectionList.prototype.iterator=function(){return this.nodeMap.values().iterator()};jsts.geomgraph.EdgeIntersectionList.prototype.addEndpoints=function(){var maxSegIndex=this.edge.pts.length-1;this.add(this.edge.pts[0],0,0);this.add(this.edge.pts[maxSegIndex],maxSegIndex,0)};jsts.geomgraph.EdgeIntersectionList.prototype.addSplitEdges=function(edgeList){this.addEndpoints();var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var newEdge=this.createSplitEdge(eiPrev,ei);edgeList.add(newEdge);eiPrev=ei}};jsts.geomgraph.EdgeIntersectionList.prototype.createSplitEdge=function(ei0,ei1){var npts=ei1.segmentIndex-ei0.segmentIndex+2;var lastSegStartPt=this.edge.pts[ei1.segmentIndex];var useIntPt1=ei1.dist>0||!ei1.coord.equals2D(lastSegStartPt);if(!useIntPt1){npts--}var pts=[];var ipt=0;pts[ipt++]=new jsts.geom.Coordinate(ei0.coord);for(var i=ei0.segmentIndex+1;i<=ei1.segmentIndex;i++){pts[ipt++]=this.edge.pts[i]}if(useIntPt1)pts[ipt]=ei1.coord;return new jsts.geomgraph.Edge(pts,new jsts.geomgraph.Label(this.edge.label))}})();(function(){var AssertionFailedException=function(message){this.message=message};AssertionFailedException.prototype=new Error;AssertionFailedException.prototype.name="AssertionFailedException";jsts.util.AssertionFailedException=AssertionFailedException})();(function(){var AssertionFailedException=jsts.util.AssertionFailedException;jsts.util.Assert=function(){};jsts.util.Assert.isTrue=function(assertion,message){if(!assertion){if(message===null){throw new AssertionFailedException}else{throw new AssertionFailedException(message)}}};jsts.util.Assert.equals=function(expectedValue,actualValue,message){if(!actualValue.equals(expectedValue)){throw new AssertionFailedException("Expected "+expectedValue+" but encountered "+actualValue+(message!=null?": "+message:""))}};jsts.util.Assert.shouldNeverReachHere=function(message){throw new AssertionFailedException("Should never reach here"+(message!=null?": "+message:""))}})();(function(){var Location=jsts.geom.Location;var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;jsts.operation.relate.RelateComputer=function(arg){this.li=new jsts.algorithm.RobustLineIntersector;this.ptLocator=new jsts.algorithm.PointLocator;this.nodes=new jsts.geomgraph.NodeMap(new jsts.operation.relate.RelateNodeFactory);this.isolatedEdges=new ArrayList;this.arg=arg};jsts.operation.relate.RelateComputer.prototype.li=null;jsts.operation.relate.RelateComputer.prototype.ptLocator=null;jsts.operation.relate.RelateComputer.prototype.arg=null;jsts.operation.relate.RelateComputer.prototype.nodes=null;jsts.operation.relate.RelateComputer.prototype.im=null;jsts.operation.relate.RelateComputer.prototype.isolatedEdges=null;jsts.operation.relate.RelateComputer.prototype.invalidPoint=null;jsts.operation.relate.RelateComputer.prototype.computeIM=function(){var im=new jsts.geom.IntersectionMatrix;im.set(Location.EXTERIOR,Location.EXTERIOR,2);if(!this.arg[0].getGeometry().getEnvelopeInternal().intersects(this.arg[1].getGeometry().getEnvelopeInternal())){this.computeDisjointIM(im);return im}this.arg[0].computeSelfNodes(this.li,false);this.arg[1].computeSelfNodes(this.li,false);var intersector=this.arg[0].computeEdgeIntersections(this.arg[1],this.li,false);this.computeIntersectionNodes(0);this.computeIntersectionNodes(1);this.copyNodesAndLabels(0);this.copyNodesAndLabels(1);this.labelIsolatedNodes();this.computeProperIntersectionIM(intersector,im);var eeBuilder=new jsts.operation.relate.EdgeEndBuilder;var ee0=eeBuilder.computeEdgeEnds(this.arg[0].getEdgeIterator());this.insertEdgeEnds(ee0);var ee1=eeBuilder.computeEdgeEnds(this.arg[1].getEdgeIterator());this.insertEdgeEnds(ee1);this.labelNodeEdges();this.labelIsolatedEdges(0,1);this.labelIsolatedEdges(1,0);this.updateIM(im);return im};jsts.operation.relate.RelateComputer.prototype.insertEdgeEnds=function(ee){for(var i=ee.iterator();i.hasNext();){var e=i.next();this.nodes.add(e)}};jsts.operation.relate.RelateComputer.prototype.computeProperIntersectionIM=function(intersector,im){var dimA=this.arg[0].getGeometry().getDimension();var dimB=this.arg[1].getGeometry().getDimension();var hasProper=intersector.hasProperIntersection();var hasProperInterior=intersector.hasProperInteriorIntersection();if(dimA===2&&dimB===2){if(hasProper)im.setAtLeast("212101212")}else if(dimA===2&&dimB===1){if(hasProper)im.setAtLeast("FFF0FFFF2");if(hasProperInterior)im.setAtLeast("1FFFFF1FF")}else if(dimA===1&&dimB===2){if(hasProper)im.setAtLeast("F0FFFFFF2");if(hasProperInterior)im.setAtLeast("1F1FFFFFF")}else if(dimA===1&&dimB===1){if(hasProperInterior)im.setAtLeast("0FFFFFFFF")}};jsts.operation.relate.RelateComputer.prototype.copyNodesAndLabels=function(argIndex){for(var i=this.arg[argIndex].getNodeIterator();i.hasNext();){var graphNode=i.next();var newNode=this.nodes.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.relate.RelateComputer.prototype.computeIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.addNode(ei.coord);if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else{if(n.getLabel().isNull(argIndex))n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateComputer.prototype.labelIntersectionNodes=function(argIndex){for(var i=this.arg[argIndex].getEdgeIterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.find(ei.coord);if(n.getLabel().isNull(argIndex)){if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateComputer.prototype.computeDisjointIM=function(im){var ga=this.arg[0].getGeometry();if(!ga.isEmpty()){im.set(Location.INTERIOR,Location.EXTERIOR,ga.getDimension());im.set(Location.BOUNDARY,Location.EXTERIOR,ga.getBoundaryDimension())}var gb=this.arg[1].getGeometry();if(!gb.isEmpty()){im.set(Location.EXTERIOR,Location.INTERIOR,gb.getDimension());im.set(Location.EXTERIOR,Location.BOUNDARY,gb.getBoundaryDimension())}};jsts.operation.relate.RelateComputer.prototype.labelNodeEdges=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.getEdges().computeLabelling(this.arg)}};jsts.operation.relate.RelateComputer.prototype.updateIM=function(im){for(var ei=this.isolatedEdges.iterator();ei.hasNext();){var e=ei.next();e.updateIM(im)}for(var ni=this.nodes.iterator();ni.hasNext();){var node=ni.next();node.updateIM(im);node.updateIMFromEdges(im)}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdges=function(thisIndex,targetIndex){for(var ei=this.arg[thisIndex].getEdgeIterator();ei.hasNext();){var e=ei.next();if(e.isIsolated()){this.labelIsolatedEdge(e,targetIndex,this.arg[targetIndex].getGeometry());this.isolatedEdges.add(e)}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedEdge=function(e,targetIndex,target){if(target.getDimension()>0){var loc=this.ptLocator.locate(e.getCoordinate(),target);e.getLabel().setAllLocations(targetIndex,loc)}else{e.getLabel().setAllLocations(targetIndex,Location.EXTERIOR)}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNodes=function(){for(var ni=this.nodes.iterator();ni.hasNext();){var n=ni.next();var label=n.getLabel();Assert.isTrue(label.getGeometryCount()>0,"node with empty label found");if(n.isIsolated()){if(label.isNull(0))this.labelIsolatedNode(n,0);else this.labelIsolatedNode(n,1)}}};jsts.operation.relate.RelateComputer.prototype.labelIsolatedNode=function(n,targetIndex){var loc=this.ptLocator.locate(n.getCoordinate(),this.arg[targetIndex].getGeometry());n.getLabel().setAllLocations(targetIndex,loc)}})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.GraphComponent=function(label){this.label=label};jsts.geomgraph.GraphComponent.prototype.label=null;jsts.geomgraph.GraphComponent.prototype._isInResult=false;jsts.geomgraph.GraphComponent.prototype._isCovered=false;jsts.geomgraph.GraphComponent.prototype._isCoveredSet=false;jsts.geomgraph.GraphComponent.prototype._isVisited=false;jsts.geomgraph.GraphComponent.prototype.getLabel=function(){return this.label};jsts.geomgraph.GraphComponent.prototype.setLabel=function(label){if(arguments.length===2){this.setLabel2.apply(this,arguments);return}this.label=label};jsts.geomgraph.GraphComponent.prototype.setInResult=function(isInResult){this._isInResult=isInResult};jsts.geomgraph.GraphComponent.prototype.isInResult=function(){return this._isInResult};jsts.geomgraph.GraphComponent.prototype.setCovered=function(isCovered){this._isCovered=isCovered;this._isCoveredSet=true};jsts.geomgraph.GraphComponent.prototype.isCovered=function(){return this._isCovered};jsts.geomgraph.GraphComponent.prototype.isCoveredSet=function(){return this._isCoveredSet};jsts.geomgraph.GraphComponent.prototype.isVisited=function(){return this._isVisited;
};jsts.geomgraph.GraphComponent.prototype.setVisited=function(isVisited){this._isVisited=isVisited};jsts.geomgraph.GraphComponent.prototype.getCoordinate=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.computeIM=function(im){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.isIsolated=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.GraphComponent.prototype.updateIM=function(im){Assert.isTrue(this.label.getGeometryCount()>=2,"found partial label");this.computeIM(im)}})();jsts.geomgraph.Node=function(coord,edges){this.coord=coord;this.edges=edges;this.label=new jsts.geomgraph.Label(0,jsts.geom.Location.NONE)};jsts.geomgraph.Node.prototype=new jsts.geomgraph.GraphComponent;jsts.geomgraph.Node.prototype.coord=null;jsts.geomgraph.Node.prototype.edges=null;jsts.geomgraph.Node.prototype.isIsolated=function(){return this.label.getGeometryCount()==1};jsts.geomgraph.Node.prototype.setLabel2=function(argIndex,onLocation){if(this.label===null){this.label=new jsts.geomgraph.Label(argIndex,onLocation)}else this.label.setLocation(argIndex,onLocation)};jsts.geomgraph.Node.prototype.setLabelBoundary=function(argIndex){var loc=jsts.geom.Location.NONE;if(this.label!==null)loc=this.label.getLocation(argIndex);var newLoc;switch(loc){case jsts.geom.Location.BOUNDARY:newLoc=jsts.geom.Location.INTERIOR;break;case jsts.geom.Location.INTERIOR:newLoc=jsts.geom.Location.BOUNDARY;break;default:newLoc=jsts.geom.Location.BOUNDARY;break}this.label.setLocation(argIndex,newLoc)};jsts.geomgraph.Node.prototype.add=function(e){this.edges.insert(e);e.setNode(this)};jsts.geomgraph.Node.prototype.getCoordinate=function(){return this.coord};jsts.geomgraph.Node.prototype.getEdges=function(){return this.edges};jsts.geomgraph.Node.prototype.isIncidentEdgeInResult=function(){for(var it=this.getEdges().getEdges().iterator();it.hasNext();){var de=it.next();if(de.getEdge().isInResult())return true}return false};jsts.geom.Point=function(coordinate,factory){this.factory=factory;if(coordinate===undefined)return;this.coordinate=coordinate};jsts.geom.Point.prototype=new jsts.geom.Geometry;jsts.geom.Point.constructor=jsts.geom.Point;jsts.geom.Point.CLASS_NAME="jsts.geom.Point";jsts.geom.Point.prototype.coordinate=null;jsts.geom.Point.prototype.getX=function(){return this.coordinate.x};jsts.geom.Point.prototype.getY=function(){return this.coordinate.y};jsts.geom.Point.prototype.getCoordinate=function(){return this.coordinate};jsts.geom.Point.prototype.getCoordinates=function(){return this.isEmpty()?[]:[this.coordinate]};jsts.geom.Point.prototype.getCoordinateSequence=function(){return this.isEmpty()?[]:[this.coordinate]};jsts.geom.Point.prototype.isEmpty=function(){return this.coordinate===null};jsts.geom.Point.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.isEmpty()&&other.isEmpty()){return true}return this.equal(other.getCoordinate(),this.getCoordinate(),tolerance)};jsts.geom.Point.prototype.getNumPoints=function(){return this.isEmpty()?0:1};jsts.geom.Point.prototype.isSimple=function(){return true};jsts.geom.Point.prototype.getBoundary=function(){return new jsts.geom.GeometryCollection(null)};jsts.geom.Point.prototype.computeEnvelopeInternal=function(){if(this.isEmpty()){return new jsts.geom.Envelope}return new jsts.geom.Envelope(this.coordinate)};jsts.geom.Point.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){if(this.isEmpty()){return}filter.filter(this.getCoordinate())}};jsts.geom.Point.prototype.clone=function(){return new jsts.geom.Point(this.coordinate.clone(),this.factory)};jsts.geom.Point.prototype.getDimension=function(){return 0};jsts.geom.Point.prototype.getBoundaryDimension=function(){return jsts.geom.Dimension.FALSE};jsts.geom.Point.prototype.reverse=function(){return this.clone()};jsts.geom.Point.prototype.isValid=function(){if(!jsts.operation.valid.IsValidOp.isValid(this.getCoordinate())){return false}return true};jsts.geom.Point.prototype.normalize=function(){};jsts.geom.Point.prototype.compareToSameClass=function(other){var point=other;return this.getCoordinate().compareTo(point.getCoordinate())};jsts.geom.Point.prototype.getGeometryType=function(){return"Point"};jsts.geom.Point.prototype.hashCode=function(){return"Point_"+this.coordinate.hashCode()};jsts.geom.Point.prototype.CLASS_NAME="jsts.geom.Point";jsts.geom.Dimension=function(){};jsts.geom.Dimension.P=0;jsts.geom.Dimension.L=1;jsts.geom.Dimension.A=2;jsts.geom.Dimension.FALSE=-1;jsts.geom.Dimension.TRUE=-2;jsts.geom.Dimension.DONTCARE=-3;jsts.geom.Dimension.toDimensionSymbol=function(dimensionValue){switch(dimensionValue){case jsts.geom.Dimension.FALSE:return"F";case jsts.geom.Dimension.TRUE:return"T";case jsts.geom.Dimension.DONTCARE:return"*";case jsts.geom.Dimension.P:return"0";case jsts.geom.Dimension.L:return"1";case jsts.geom.Dimension.A:return"2"}throw new jsts.IllegalArgumentError("Unknown dimension value: "+dimensionValue)};jsts.geom.Dimension.toDimensionValue=function(dimensionSymbol){switch(dimensionSymbol.toUpperCase()){case"F":return jsts.geom.Dimension.FALSE;case"T":return jsts.geom.Dimension.TRUE;case"*":return jsts.geom.Dimension.DONTCARE;case"0":return jsts.geom.Dimension.P;case"1":return jsts.geom.Dimension.L;case"2":return jsts.geom.Dimension.A}throw new jsts.error.IllegalArgumentError("Unknown dimension symbol: "+dimensionSymbol)};(function(){var Dimension=jsts.geom.Dimension;jsts.geom.LineString=function(points,factory){this.factory=factory;this.points=points||[]};jsts.geom.LineString.prototype=new jsts.geom.Geometry;jsts.geom.LineString.constructor=jsts.geom.LineString;jsts.geom.LineString.prototype.points=null;jsts.geom.LineString.prototype.getCoordinates=function(){return this.points};jsts.geom.LineString.prototype.getCoordinateSequence=function(){return this.points};jsts.geom.LineString.prototype.getCoordinateN=function(n){return this.points[n]};jsts.geom.LineString.prototype.getCoordinate=function(){if(this.isEmpty()){return null}return this.getCoordinateN(0)};jsts.geom.LineString.prototype.getDimension=function(){return 1};jsts.geom.LineString.prototype.getBoundaryDimension=function(){if(this.isClosed()){return Dimension.FALSE}return 0};jsts.geom.LineString.prototype.isEmpty=function(){return this.points.length===0};jsts.geom.LineString.prototype.getNumPoints=function(){return this.points.length};jsts.geom.LineString.prototype.getPointN=function(n){return this.getFactory().createPoint(this.points[n])};jsts.geom.LineString.prototype.getStartPoint=function(){if(this.isEmpty()){return null}return this.getPointN(0)};jsts.geom.LineString.prototype.getEndPoint=function(){if(this.isEmpty()){return null}return this.getPointN(this.getNumPoints()-1)};jsts.geom.LineString.prototype.isClosed=function(){if(this.isEmpty()){return false}return this.getCoordinateN(0).equals2D(this.getCoordinateN(this.points.length-1))};jsts.geom.LineString.prototype.isRing=function(){return this.isClosed()&&this.isSimple()};jsts.geom.LineString.prototype.getGeometryType=function(){return"LineString"};jsts.geom.LineString.prototype.getLength=function(){return jsts.algorithm.CGAlgorithms.computeLength(this.points)};jsts.geom.LineString.prototype.getBoundary=function(){return new jsts.operation.BoundaryOp(this).getBoundary()};jsts.geom.LineString.prototype.computeEnvelopeInternal=function(){if(this.isEmpty()){return new jsts.geom.Envelope}var env=new jsts.geom.Envelope;this.points.forEach(function(component){env.expandToInclude(component)});return env};jsts.geom.LineString.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.points.length!==other.points.length){return false}if(this.isEmpty()&&other.isEmpty()){return true}return this.points.reduce(function(equal,point,i){return equal&&jsts.geom.Geometry.prototype.equal(point,other.points[i],tolerance)})};jsts.geom.LineString.prototype.isEquivalentClass=function(other){return other instanceof jsts.geom.LineString};jsts.geom.LineString.prototype.compareToSameClass=function(o){var line=o;var i=0,il=this.points.length;var j=0,jl=line.points.length;while(i<il&&j<jl){var comparison=this.points[i].compareTo(line.points[j]);if(comparison!==0){return comparison}i++;j++}if(i<il){return 1}if(j<jl){return-1}return 0};jsts.geom.LineString.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){for(var i=0,len=this.points.length;i<len;i++){filter.filter(this.points[i])}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.LineString.prototype.apply2=function(filter){if(this.points.length===0)return;for(var i=0;i<this.points.length;i++){filter.filter(this.points,i);if(filter.isDone())break}if(filter.isGeometryChanged()){}};jsts.geom.LineString.prototype.clone=function(){var points=[];for(var i=0,len=this.points.length;i<len;i++){points.push(this.points[i].clone())}return this.factory.createLineString(points)};jsts.geom.LineString.prototype.normalize=function(){var i,il,j,ci,cj,len;len=this.points.length;il=parseInt(len/2);for(i=0;i<il;i++){j=len-1-i;ci=this.points[i];cj=this.points[j];if(!ci.equals(cj)){if(ci.compareTo(cj)>0){this.points.reverse()}return}}};jsts.geom.LineString.prototype.CLASS_NAME="jsts.geom.LineString"})();(function(){jsts.geom.Polygon=function(shell,holes,factory){this.shell=shell||factory.createLinearRing(null);this.holes=holes||[];this.factory=factory};jsts.geom.Polygon.prototype=new jsts.geom.Geometry;jsts.geom.Polygon.constructor=jsts.geom.Polygon;jsts.geom.Polygon.prototype.getCoordinate=function(){return this.shell.getCoordinate()};jsts.geom.Polygon.prototype.getCoordinates=function(){if(this.isEmpty()){return[]}var coordinates=[];var k=-1;var shellCoordinates=this.shell.getCoordinates();for(var x=0;x<shellCoordinates.length;x++){k++;coordinates[k]=shellCoordinates[x]}for(var i=0;i<this.holes.length;i++){var childCoordinates=this.holes[i].getCoordinates();for(var j=0;j<childCoordinates.length;j++){k++;coordinates[k]=childCoordinates[j]}}return coordinates};jsts.geom.Polygon.prototype.getNumPoints=function(){var numPoints=this.shell.getNumPoints();for(var i=0;i<this.holes.length;i++){numPoints+=this.holes[i].getNumPoints()}return numPoints};jsts.geom.Polygon.prototype.isEmpty=function(){return this.shell.isEmpty()};jsts.geom.Polygon.prototype.isRectangle=function(){if(this.getNumInteriorRing()!=0)return false;if(this.shell==null)return false;if(this.shell.getNumPoints()!=5)return false;var seq=this.shell.getCoordinateSequence();var env=this.getEnvelopeInternal();for(var i=0;i<5;i++){var x=seq[i].x;if(!(x==env.getMinX()||x==env.getMaxX()))return false;var y=seq[i].y;if(!(y==env.getMinY()||y==env.getMaxY()))return false}var prevX=seq[0].x;var prevY=seq[0].y;for(var i=1;i<=4;i++){var x=seq[i].x;var y=seq[i].y;var xChanged=x!=prevX;var yChanged=y!=prevY;if(xChanged==yChanged)return false;prevX=x;prevY=y}return true};jsts.geom.Polygon.prototype.getExteriorRing=function(){return this.shell};jsts.geom.Polygon.prototype.getInteriorRingN=function(n){return this.holes[n]};jsts.geom.Polygon.prototype.getNumInteriorRing=function(){return this.holes.length};jsts.geom.Polygon.prototype.getArea=function(){var area=0;area+=Math.abs(jsts.algorithm.CGAlgorithms.signedArea(this.shell.getCoordinateSequence()));for(var i=0;i<this.holes.length;i++){area-=Math.abs(jsts.algorithm.CGAlgorithms.signedArea(this.holes[i].getCoordinateSequence()))}return area};jsts.geom.Polygon.prototype.getLength=function(){var len=0;len+=this.shell.getLength();for(var i=0;i<this.holes.length;i++){len+=this.holes[i].getLength()}return len};jsts.geom.Polygon.prototype.getBoundary=function(){if(this.isEmpty()){return this.getFactory().createMultiLineString(null)}var rings=[];rings[0]=this.shell.clone();for(var i=0,len=this.holes.length;i<len;i++){rings[i+1]=this.holes[i].clone()}if(rings.length<=1)return rings[0];return this.getFactory().createMultiLineString(rings)};jsts.geom.Polygon.prototype.computeEnvelopeInternal=function(){return this.shell.getEnvelopeInternal()};jsts.geom.Polygon.prototype.getDimension=function(){return 2};jsts.geom.Polygon.prototype.getBoundaryDimension=function(){return 1};jsts.geom.Polygon.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.isEmpty()&&other.isEmpty()){return true}if(this.isEmpty()!==other.isEmpty()){return false}if(!this.shell.equalsExact(other.shell,tolerance)){return false}if(this.holes.length!==other.holes.length){return false}if(this.holes.length!==other.holes.length){return false}for(var i=0;i<this.holes.length;i++){if(!this.holes[i].equalsExact(other.holes[i],tolerance)){return false}}return true};jsts.geom.Polygon.prototype.compareToSameClass=function(o){return this.shell.compareToSameClass(o.shell)};jsts.geom.Polygon.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this);this.shell.apply(filter);for(var i=0,len=this.holes.length;i<len;i++){this.holes[i].apply(filter)}}else if(filter instanceof jsts.geom.GeometryFilter){filter.filter(this)}else if(filter instanceof jsts.geom.CoordinateFilter){this.shell.apply(filter);for(var i=0,len=this.holes.length;i<len;i++){this.holes[i].apply(filter)}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.Polygon.prototype.apply2=function(filter){this.shell.apply(filter);if(!filter.isDone()){for(var i=0;i<this.holes.length;i++){this.holes[i].apply(filter);if(filter.isDone())break}}if(filter.isGeometryChanged()){}};jsts.geom.Polygon.prototype.clone=function(){var holes=[];for(var i=0,len=this.holes.length;i<len;i++){holes.push(this.holes[i].clone())}return this.factory.createPolygon(this.shell.clone(),holes)};jsts.geom.Polygon.prototype.normalize=function(){this.normalize2(this.shell,true);for(var i=0,len=this.holes.length;i<len;i++){this.normalize2(this.holes[i],false)}this.holes.sort()};jsts.geom.Polygon.prototype.normalize2=function(ring,clockwise){if(ring.isEmpty()){return}var uniqueCoordinates=ring.points.slice(0,ring.points.length-1);var minCoordinate=jsts.geom.CoordinateArrays.minCoordinate(ring.points);jsts.geom.CoordinateArrays.scroll(uniqueCoordinates,minCoordinate);ring.points=uniqueCoordinates.concat();ring.points[uniqueCoordinates.length]=uniqueCoordinates[0];if(jsts.algorithm.CGAlgorithms.isCCW(ring.points)===clockwise){ring.points.reverse()}};jsts.geom.Polygon.prototype.getGeometryType=function(){return"Polygon"};jsts.geom.Polygon.prototype.CLASS_NAME="jsts.geom.Polygon"})();(function(){var Geometry=jsts.geom.Geometry;var TreeSet=javascript.util.TreeSet;var Arrays=javascript.util.Arrays;jsts.geom.GeometryCollection=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.GeometryCollection.prototype=new Geometry;jsts.geom.GeometryCollection.constructor=jsts.geom.GeometryCollection;jsts.geom.GeometryCollection.prototype.isEmpty=function(){for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);if(!geometry.isEmpty()){return false}}return true};jsts.geom.GeometryCollection.prototype.getArea=function(){var area=0;for(var i=0,len=this.geometries.length;i<len;i++){area+=this.getGeometryN(i).getArea()}return area};jsts.geom.GeometryCollection.prototype.getLength=function(){var length=0;for(var i=0,len=this.geometries.length;i<len;i++){length+=this.getGeometryN(i).getLength()}return length};jsts.geom.GeometryCollection.prototype.getCoordinate=function(){if(this.isEmpty())return null;return this.getGeometryN(0).getCoordinate()};jsts.geom.GeometryCollection.prototype.getCoordinates=function(){var coordinates=[];var k=-1;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);var childCoordinates=geometry.getCoordinates();for(var j=0;j<childCoordinates.length;j++){k++;coordinates[k]=childCoordinates[j]}}return coordinates};jsts.geom.GeometryCollection.prototype.getNumGeometries=function(){return this.geometries.length};jsts.geom.GeometryCollection.prototype.getGeometryN=function(n){var geometry=this.geometries[n];if(geometry instanceof jsts.geom.Coordinate){geometry=new jsts.geom.Point(geometry)}return geometry};jsts.geom.GeometryCollection.prototype.getNumPoints=function(n){var numPoints=0;for(var i=0;i<this.geometries.length;i++){numPoints+=this.geometries[i].getNumPoints()}return numPoints};jsts.geom.GeometryCollection.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}if(this.geometries.length!==other.geometries.length){return false}for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);if(!geometry.equalsExact(other.getGeometryN(i),tolerance)){return false}}return true};jsts.geom.GeometryCollection.prototype.clone=function(){var geometries=[];for(var i=0,len=this.geometries.length;i<len;i++){geometries.push(this.geometries[i].clone())}return this.factory.createGeometryCollection(geometries)};jsts.geom.GeometryCollection.prototype.normalize=function(){for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).normalize()}this.geometries.sort()};jsts.geom.GeometryCollection.prototype.compareToSameClass=function(o){var theseElements=new TreeSet(Arrays.asList(this.geometries));var otherElements=new TreeSet(Arrays.asList(o.geometries));return this.compare(theseElements,otherElements)};jsts.geom.GeometryCollection.prototype.apply=function(filter){if(filter instanceof jsts.geom.GeometryFilter||filter instanceof jsts.geom.GeometryComponentFilter){filter.filter(this);for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).apply(filter)}}else if(filter instanceof jsts.geom.CoordinateFilter){for(var i=0,len=this.geometries.length;i<len;i++){this.getGeometryN(i).apply(filter)}}else if(filter instanceof jsts.geom.CoordinateSequenceFilter){this.apply2.apply(this,arguments)}};jsts.geom.GeometryCollection.prototype.apply2=function(filter){if(this.geometries.length==0)return;for(var i=0;i<this.geometries.length;i++){this.geometries[i].apply(filter);if(filter.isDone()){break}}if(filter.isGeometryChanged()){}};jsts.geom.GeometryCollection.prototype.getDimension=function(){var dimension=jsts.geom.Dimension.FALSE;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);dimension=Math.max(dimension,geometry.getDimension())}return dimension};jsts.geom.GeometryCollection.prototype.computeEnvelopeInternal=function(){var envelope=new jsts.geom.Envelope;for(var i=0,len=this.geometries.length;i<len;i++){var geometry=this.getGeometryN(i);envelope.expandToInclude(geometry.getEnvelopeInternal())}return envelope};jsts.geom.GeometryCollection.prototype.CLASS_NAME="jsts.geom.GeometryCollection"})();jsts.algorithm.Centroid=function(geometry){this.areaBasePt=null;this.triangleCent3=new jsts.geom.Coordinate;this.areasum2=0;this.cg3=new jsts.geom.Coordinate;this.lineCentSum=new jsts.geom.Coordinate;this.totalLength=0;this.ptCount=0;this.ptCentSum=new jsts.geom.Coordinate;this.add(geometry)};jsts.algorithm.Centroid.getCentroid=function(geometry){var cent=new jsts.algorithm.Centroid(geometry);return cent.getCentroid()};jsts.algorithm.Centroid.centroid3=function(p1,p2,p3,c){c.x=p1.x+p2.x+p3.x;c.y=p1.y+p2.y+p3.y};jsts.algorithm.Centroid.area2=function(p1,p2,p3){return(p2.x-p1.x)*(p3.y-p1.y)-(p3.x-p1.x)*(p2.y-p1.y)};jsts.algorithm.Centroid.prototype.add=function(geom){if(geom.isEmpty()){return}if(geom instanceof jsts.geom.Point){this.addPoint(geom.getCoordinate())}else if(geom instanceof jsts.geom.LineString){this.addLineSegments(geom.getCoordinates())}else if(geom instanceof jsts.geom.Polygon){this.addPolygon(geom)}else if(geom instanceof jsts.geom.GeometryCollection){for(var i=0;i<geom.getNumGeometries();i++){this.add(geom.getGeometryN(i))}}};jsts.algorithm.Centroid.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;if(Math.abs(this.areasum2)>0){cent.x=this.cg3.x/3/this.areasum2;cent.y=this.cg3.y/3/this.areasum2}else if(this.totalLength>0){cent.x=this.lineCentSum.x/this.totalLength;cent.y=this.lineCentSum.y/this.totalLength}else if(this.ptCount>0){cent.x=this.ptCentSum.x/this.ptCount;cent.y=this.ptCentSum.y/this.ptCount}else{return null}return cent};jsts.algorithm.Centroid.prototype.setBasePoint=function(basePt){if(this.areaBasePt===null){this.areaBasePt=basePt}};jsts.algorithm.Centroid.prototype.addPolygon=function(poly){this.addShell(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.addHole(poly.getInteriorRingN(i).getCoordinates())}};jsts.algorithm.Centroid.prototype.addShell=function(pts){if(pts.length>0){this.setBasePoint(pts[0])}var isPositiveArea=!jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.areaBasePt,pts[i],pts[i+1],isPositiveArea)}this.addLineSegments(pts)};jsts.algorithm.Centroid.prototype.addHole=function(pts){var isPositiveArea=jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.areaBasePt,pts[i],pts[i+1],isPositiveArea)}this.addLineSegments(pts)};jsts.algorithm.Centroid.prototype.addTriangle=function(p0,p1,p2,isPositiveArea){var sign=isPositiveArea?1:-1;jsts.algorithm.Centroid.centroid3(p0,p1,p2,this.triangleCent3);var area2=jsts.algorithm.Centroid.area2(p0,p1,p2);this.cg3.x+=sign*area2*this.triangleCent3.x;this.cg3.y+=sign*area2*this.triangleCent3.y;this.areasum2+=sign*area2};jsts.algorithm.Centroid.prototype.addLineSegments=function(pts){var lineLen=0;for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);if(segmentLen===0){continue}lineLen+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.lineCentSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.lineCentSum.y+=segmentLen*midy}this.totalLength+=lineLen;if(lineLen===0&&pts.length>0){this.addPoint(pts[0])}};jsts.algorithm.Centroid.prototype.addPoint=function(pt){this.ptCount+=1;this.ptCentSum.x+=pt.x;this.ptCentSum.y+=pt.y};(function(){var EdgeRing=function(factory){this.deList=new javascript.util.ArrayList;this.factory=factory};EdgeRing.findEdgeRingContaining=function(testEr,shellList){var testRing=testEr.getRing();var testEnv=testRing.getEnvelopeInternal();var testPt=testRing.getCoordinateN(0);var minShell=null;var minEnv=null;for(var it=shellList.iterator();it.hasNext();){var tryShell=it.next();var tryRing=tryShell.getRing();var tryEnv=tryRing.getEnvelopeInternal();if(minShell!=null)minEnv=minShell.getRing().getEnvelopeInternal();var isContained=false;if(tryEnv.equals(testEnv))continue;testPt=jsts.geom.CoordinateArrays.ptNotInList(testRing.getCoordinates(),tryRing.getCoordinates());if(tryEnv.contains(testEnv)&&jsts.algorithm.CGAlgorithms.isPointInRing(testPt,tryRing.getCoordinates()))isContained=true;if(isContained){if(minShell==null||minEnv.contains(tryEnv)){minShell=tryShell}}}return minShell};EdgeRing.ptNotInList=function(testPts,pts){for(var i=0;i<testPts.length;i++){var testPt=testPts[i];if(!isInList(testPt,pts))return testPt}return null};EdgeRing.isInList=function(pt,pts){for(var i=0;i<pts.length;i++){if(pt.equals(pts[i]))return true}return false};EdgeRing.prototype.factory=null;EdgeRing.prototype.deList=null;EdgeRing.prototype.ring=null;EdgeRing.prototype.ringPts=null;EdgeRing.prototype.holes=null;EdgeRing.prototype.add=function(de){this.deList.add(de)};EdgeRing.prototype.isHole=function(){var ring=this.getRing();return jsts.algorithm.CGAlgorithms.isCCW(ring.getCoordinates())};EdgeRing.prototype.addHole=function(hole){if(this.holes==null)this.holes=new javascript.util.ArrayList;this.holes.add(hole)};EdgeRing.prototype.getPolygon=function(){var holeLR=null;if(this.holes!=null){holeLR=[];for(var i=0;i<this.holes.size();i++){holeLR[i]=this.holes.get(i)}}var poly=this.factory.createPolygon(this.ring,holeLR);return poly};EdgeRing.prototype.isValid=function(){this.getCoordinates();if(this.ringPts.length<=3)return false;this.getRing();return this.ring.isValid()};EdgeRing.prototype.getCoordinates=function(){if(this.ringPts==null){var coordList=new jsts.geom.CoordinateList;for(var i=this.deList.iterator();i.hasNext();){var de=i.next();var edge=de.getEdge();EdgeRing.addEdge(edge.getLine().getCoordinates(),de.getEdgeDirection(),coordList)}this.ringPts=coordList.toCoordinateArray()}return this.ringPts};EdgeRing.prototype.getLineString=function(){this.getCoordinates();return this.factory.createLineString(this.ringPts)};EdgeRing.prototype.getRing=function(){if(this.ring!=null)return this.ring;this.getCoordinates();if(this.ringPts.length<3)console.log(this.ringPts);try{this.ring=this.factory.createLinearRing(this.ringPts)}catch(ex){console.log(this.ringPts)}return this.ring};EdgeRing.addEdge=function(coords,isForward,coordList){if(isForward){for(var i=0;i<coords.length;i++){coordList.add(coords[i],false)}}else{for(var i=coords.length-1;i>=0;i--){coordList.add(coords[i],false)}}};jsts.operation.polygonize.EdgeRing=EdgeRing})();(function(){var GraphComponent=function(){};GraphComponent.setVisited=function(i,visited){while(i.hasNext()){var comp=i.next();comp.setVisited(visited)}};GraphComponent.setMarked=function(i,marked){while(i.hasNext()){var comp=i.next();comp.setMarked(marked)}};GraphComponent.getComponentWithVisitedState=function(i,visitedState){while(i.hasNext()){var comp=i.next();if(comp.isVisited()==visitedState)return comp}return null};GraphComponent.prototype._isMarked=false;GraphComponent.prototype._isVisited=false;GraphComponent.prototype.data;GraphComponent.prototype.isVisited=function(){return this._isVisited};GraphComponent.prototype.setVisited=function(isVisited){this._isVisited=isVisited};GraphComponent.prototype.isMarked=function(){return this._isMarked};GraphComponent.prototype.setMarked=function(isMarked){this._isMarked=isMarked};GraphComponent.prototype.setContext=function(data){this.data=data};GraphComponent.prototype.getContext=function(){return data};GraphComponent.prototype.setData=function(data){this.data=data};GraphComponent.prototype.getData=function(){return data};GraphComponent.prototype.isRemoved=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.planargraph.GraphComponent=GraphComponent})();(function(){var GraphComponent=jsts.planargraph.GraphComponent;var Edge=function(de0,de1){if(de0===undefined){return}this.setDirectedEdges(de0,de1)};Edge.prototype=new GraphComponent;Edge.prototype.dirEdge=null;Edge.prototype.setDirectedEdges=function(de0,de1){this.dirEdge=[de0,de1];de0.setEdge(this);de1.setEdge(this);de0.setSym(de1);de1.setSym(de0);de0.getFromNode().addOutEdge(de0);de1.getFromNode().addOutEdge(de1)};Edge.prototype.getDirEdge=function(i){if(i instanceof jsts.planargraph.Node){this.getDirEdge2(i)}return this.dirEdge[i]};Edge.prototype.getDirEdge2=function(fromNode){if(this.dirEdge[0].getFromNode()==fromNode)return this.dirEdge[0];if(this.dirEdge[1].getFromNode()==fromNode)return this.dirEdge[1];return null};Edge.prototype.getOppositeNode=function(node){if(this.dirEdge[0].getFromNode()==node)return this.dirEdge[0].getToNode();if(this.dirEdge[1].getFromNode()==node)return this.dirEdge[1].getToNode();return null};Edge.prototype.remove=function(){this.dirEdge=null};Edge.prototype.isRemoved=function(){return dirEdge==null};jsts.planargraph.Edge=Edge})();jsts.operation.polygonize.PolygonizeEdge=function(line){this.line=line};jsts.operation.polygonize.PolygonizeEdge.prototype=new jsts.planargraph.Edge;jsts.operation.polygonize.PolygonizeEdge.prototype.line=null;jsts.operation.polygonize.PolygonizeEdge.prototype.getLine=function(){return this.line};(function(){var ArrayList=javascript.util.ArrayList;var GraphComponent=jsts.planargraph.GraphComponent;var DirectedEdge=function(from,to,directionPt,edgeDirection){if(from===undefined){return}this.from=from;this.to=to;this.edgeDirection=edgeDirection;this.p0=from.getCoordinate();this.p1=directionPt;var dx=this.p1.x-this.p0.x;var dy=this.p1.y-this.p0.y;this.quadrant=jsts.geomgraph.Quadrant.quadrant(dx,dy);this.angle=Math.atan2(dy,dx)};DirectedEdge.prototype=new GraphComponent;DirectedEdge.toEdges=function(dirEdges){var edges=new ArrayList;for(var i=dirEdges.iterator();i.hasNext();){edges.add(i.next().parentEdge)}return edges};DirectedEdge.prototype.parentEdge=null;DirectedEdge.prototype.from=null;DirectedEdge.prototype.to=null;DirectedEdge.prototype.p0=null;DirectedEdge.prototype.p1=null;DirectedEdge.prototype.sym=null;DirectedEdge.prototype.edgeDirection=null;DirectedEdge.prototype.quadrant=null;DirectedEdge.prototype.angle=null;DirectedEdge.prototype.getEdge=function(){return this.parentEdge};DirectedEdge.prototype.setEdge=function(parentEdge){this.parentEdge=parentEdge};DirectedEdge.prototype.getQuadrant=function(){return this.quadrant};DirectedEdge.prototype.getDirectionPt=function(){return this.p1};DirectedEdge.prototype.getEdgeDirection=function(){return this.edgeDirection};DirectedEdge.prototype.getFromNode=function(){return this.from};DirectedEdge.prototype.getToNode=function(){return this.to};DirectedEdge.prototype.getCoordinate=function(){return this.from.getCoordinate()};DirectedEdge.prototype.getAngle=function(){return this.angle};DirectedEdge.prototype.getSym=function(){return this.sym};DirectedEdge.prototype.setSym=function(sym){this.sym=sym};DirectedEdge.prototype.remove=function(){this.sym=null;this.parentEdge=null};DirectedEdge.prototype.isRemoved=function(){return this.parentEdge==null};DirectedEdge.prototype.compareTo=function(obj){var de=obj;return this.compareDirection(de)};DirectedEdge.prototype.compareDirection=function(e){if(this.quadrant>e.quadrant)return 1;if(this.quadrant<e.quadrant)return-1;return jsts.algorithm.CGAlgorithms.computeOrientation(e.p0,e.p1,this.p1)};jsts.planargraph.DirectedEdge=DirectedEdge})();(function(){var DirectedEdge=jsts.planargraph.DirectedEdge;var PolygonizeDirectedEdge=function(from,to,directionPt,edgeDirection){DirectedEdge.apply(this,arguments)};PolygonizeDirectedEdge.prototype=new DirectedEdge;PolygonizeDirectedEdge.prototype.edgeRing=null;PolygonizeDirectedEdge.prototype.next=null;PolygonizeDirectedEdge.prototype.label=-1;PolygonizeDirectedEdge.prototype.getLabel=function(){return this.label};PolygonizeDirectedEdge.prototype.setLabel=function(label){this.label=label};PolygonizeDirectedEdge.prototype.getNext=function(){return this.next};PolygonizeDirectedEdge.prototype.setNext=function(next){this.next=next};PolygonizeDirectedEdge.prototype.isInRing=function(){return this.edgeRing!=null};PolygonizeDirectedEdge.prototype.setRing=function(edgeRing){this.edgeRing=edgeRing};jsts.operation.polygonize.PolygonizeDirectedEdge=PolygonizeDirectedEdge})();(function(){var ArrayList=javascript.util.ArrayList;var DirectedEdgeStar=function(){this.outEdges=new ArrayList};DirectedEdgeStar.prototype.outEdges=null;DirectedEdgeStar.prototype.sorted=false;DirectedEdgeStar.prototype.add=function(de){this.outEdges.add(de);this.sorted=false};DirectedEdgeStar.prototype.remove=function(de){this.outEdges.remove(de)};DirectedEdgeStar.prototype.iterator=function(){this.sortEdges();return this.outEdges.iterator()};DirectedEdgeStar.prototype.getDegree=function(){return this.outEdges.size()};DirectedEdgeStar.prototype.getCoordinate=function(){var it=iterator();if(!it.hasNext())return null;var e=it.next();return e.getCoordinate()};DirectedEdgeStar.prototype.getEdges=function(){this.sortEdges();return this.outEdges};DirectedEdgeStar.prototype.sortEdges=function(){if(!this.sorted){var array=this.outEdges.toArray();array.sort(function(a,b){return a.compareTo(b)});this.outEdges=javascript.util.Arrays.asList(array);this.sorted=true}};DirectedEdgeStar.prototype.getIndex=function(edge){if(edge instanceof jsts.planargraph.DirectedEdge){
return this.getIndex2(edge)}else if(typeof edge==="number"){return this.getIndex3(edge)}this.sortEdges();for(var i=0;i<this.outEdges.size();i++){var de=this.outEdges.get(i);if(de.getEdge()==edge)return i}return-1};DirectedEdgeStar.prototype.getIndex2=function(dirEdge){this.sortEdges();for(var i=0;i<this.outEdges.size();i++){var de=this.outEdges.get(i);if(de==dirEdge)return i}return-1};DirectedEdgeStar.prototype.getIndex3=function(i){var modi=toInt(i%this.outEdges.size());if(modi<0)modi+=this.outEdges.size();return modi};DirectedEdgeStar.prototype.getNextEdge=function(dirEdge){var i=this.getIndex(dirEdge);return this.outEdges.get(getIndex(i+1))};DirectedEdgeStar.prototype.getNextCWEdge=function(dirEdge){var i=this.getIndex(dirEdge);return this.outEdges.get(getIndex(i-1))};jsts.planargraph.DirectedEdgeStar=DirectedEdgeStar})();(function(){var GraphComponent=jsts.planargraph.GraphComponent;var DirectedEdgeStar=jsts.planargraph.DirectedEdgeStar;var Node=function(pt,deStar){this.pt=pt;this.deStar=deStar||new DirectedEdgeStar};Node.prototype=new GraphComponent;Node.getEdgesBetween=function(node0,node1){var edges0=DirectedEdge.toEdges(node0.getOutEdges().getEdges());var commonEdges=new javascript.util.HashSet(edges0);var edges1=DirectedEdge.toEdges(node1.getOutEdges().getEdges());commonEdges.retainAll(edges1);return commonEdges};Node.prototype.pt=null;Node.prototype.deStar=null;Node.prototype.getCoordinate=function(){return this.pt};Node.prototype.addOutEdge=function(de){this.deStar.add(de)};Node.prototype.getOutEdges=function(){return this.deStar};Node.prototype.getDegree=function(){return this.deStar.getDegree()};Node.prototype.getIndex=function(edge){return this.deStar.getIndex(edge)};Node.prototype.remove=function(de){if(de===undefined){return this.remove2()}this.deStar.remove(de)};Node.prototype.remove2=function(){this.pt=null};Node.prototype.isRemoved=function(){return this.pt==null};jsts.planargraph.Node=Node})();(function(){var NodeMap=function(){this.nodeMap=new javascript.util.TreeMap};NodeMap.prototype.nodeMap=null;NodeMap.prototype.add=function(n){this.nodeMap.put(n.getCoordinate(),n);return n};NodeMap.prototype.remove=function(pt){return this.nodeMap.remove(pt)};NodeMap.prototype.find=function(coord){return this.nodeMap.get(coord)};NodeMap.prototype.iterator=function(){return this.nodeMap.values().iterator()};NodeMap.prototype.values=function(){return this.nodeMap.values()};jsts.planargraph.NodeMap=NodeMap})();(function(){var ArrayList=javascript.util.ArrayList;var PlanarGraph=function(){this.edges=new javascript.util.HashSet;this.dirEdges=new javascript.util.HashSet;this.nodeMap=new jsts.planargraph.NodeMap};PlanarGraph.prototype.edges=null;PlanarGraph.prototype.dirEdges=null;PlanarGraph.prototype.nodeMap=null;PlanarGraph.prototype.findNode=function(pt){return this.nodeMap.find(pt)};PlanarGraph.prototype.add=function(node){if(node instanceof jsts.planargraph.Edge){return this.add2(node)}else if(node instanceof jsts.planargraph.DirectedEdge){return this.add3(node)}this.nodeMap.add(node)};PlanarGraph.prototype.add2=function(edge){this.edges.add(edge);this.add(edge.getDirEdge(0));this.add(edge.getDirEdge(1))};PlanarGraph.prototype.add3=function(dirEdge){this.dirEdges.add(dirEdge)};PlanarGraph.prototype.nodeIterator=function(){return this.nodeMap.iterator()};PlanarGraph.prototype.contains=function(e){if(e instanceof jsts.planargraph.DirectedEdge){return this.contains2(e)}return this.edges.contains(e)};PlanarGraph.prototype.contains2=function(de){return this.dirEdges.contains(de)};PlanarGraph.prototype.getNodes=function(){return this.nodeMap.values()};PlanarGraph.prototype.dirEdgeIterator=function(){return this.dirEdges.iterator()};PlanarGraph.prototype.edgeIterator=function(){return this.edges.iterator()};PlanarGraph.prototype.getEdges=function(){return this.edges};PlanarGraph.prototype.remove=function(edge){if(edge instanceof jsts.planargraph.DirectedEdge){return this.remove2(edge)}this.remove(edge.getDirEdge(0));this.remove(edge.getDirEdge(1));this.edges.remove(edge);this.edge.remove()};PlanarGraph.prototype.remove2=function(de){if(de instanceof jsts.planargraph.Node){return this.remove3(de)}var sym=de.getSym();if(sym!=null)sym.setSym(null);de.getFromNode().remove(de);de.remove();this.dirEdges.remove(de)};PlanarGraph.prototype.remove3=function(node){var outEdges=node.getOutEdges().getEdges();for(var i=outEdges.iterator();i.hasNext();){var de=i.next();var sym=de.getSym();if(sym!=null)this.remove(sym);this.dirEdges.remove(de);var edge=de.getEdge();if(edge!=null){this.edges.remove(edge)}}this.nodeMap.remove(node.getCoordinate());node.remove()};PlanarGraph.prototype.findNodesOfDegree=function(degree){var nodesFound=new ArrayList;for(var i=this.nodeIterator();i.hasNext();){var node=i.next();if(node.getDegree()==degree)nodesFound.add(node)}return nodesFound};jsts.planargraph.PlanarGraph=PlanarGraph})();(function(){var ArrayList=javascript.util.ArrayList;var Stack=javascript.util.Stack;var HashSet=javascript.util.HashSet;var Assert=jsts.util.Assert;var EdgeRing=jsts.operation.polygonize.EdgeRing;var PolygonizeEdge=jsts.operation.polygonize.PolygonizeEdge;var PolygonizeDirectedEdge=jsts.operation.polygonize.PolygonizeDirectedEdge;var PlanarGraph=jsts.planargraph.PlanarGraph;var Node=jsts.planargraph.Node;var PolygonizeGraph=function(factory){PlanarGraph.apply(this);this.factory=factory};PolygonizeGraph.prototype=new PlanarGraph;PolygonizeGraph.getDegreeNonDeleted=function(node){var edges=node.getOutEdges().getEdges();var degree=0;for(var i=edges.iterator();i.hasNext();){var de=i.next();if(!de.isMarked())degree++}return degree};PolygonizeGraph.getDegree=function(node,label){var edges=node.getOutEdges().getEdges();var degree=0;for(var i=edges.iterator();i.hasNext();){var de=i.next();if(de.getLabel()==label)degree++}return degree};PolygonizeGraph.deleteAllEdges=function(node){var edges=node.getOutEdges().getEdges();for(var i=edges.iterator();i.hasNext();){var de=i.next();de.setMarked(true);var sym=de.getSym();if(sym!=null)sym.setMarked(true)}};PolygonizeGraph.prototype.factory=null;PolygonizeGraph.prototype.addEdge=function(line){if(line.isEmpty()){return}var linePts=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());if(linePts.length<2){return}var startPt=linePts[0];var endPt=linePts[linePts.length-1];var nStart=this.getNode(startPt);var nEnd=this.getNode(endPt);var de0=new PolygonizeDirectedEdge(nStart,nEnd,linePts[1],true);var de1=new PolygonizeDirectedEdge(nEnd,nStart,linePts[linePts.length-2],false);var edge=new PolygonizeEdge(line);edge.setDirectedEdges(de0,de1);this.add(edge)};PolygonizeGraph.prototype.getNode=function(pt){var node=this.findNode(pt);if(node==null){node=new Node(pt);this.add(node)}return node};PolygonizeGraph.prototype.computeNextCWEdges=function(){for(var iNode=this.nodeIterator();iNode.hasNext();){var node=iNode.next();PolygonizeGraph.computeNextCWEdges(node)}};PolygonizeGraph.prototype.convertMaximalToMinimalEdgeRings=function(ringEdges){for(var i=ringEdges.iterator();i.hasNext();){var de=i.next();var label=de.getLabel();var intNodes=PolygonizeGraph.findIntersectionNodes(de,label);if(intNodes==null)continue;for(var iNode=intNodes.iterator();iNode.hasNext();){var node=iNode.next();PolygonizeGraph.computeNextCCWEdges(node,label)}}};PolygonizeGraph.findIntersectionNodes=function(startDE,label){var de=startDE;var intNodes=null;do{var node=de.getFromNode();if(PolygonizeGraph.getDegree(node,label)>1){if(intNodes==null)intNodes=new ArrayList;intNodes.add(node)}de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return intNodes};PolygonizeGraph.prototype.getEdgeRings=function(){this.computeNextCWEdges();PolygonizeGraph.label(this.dirEdges,-1);var maximalRings=PolygonizeGraph.findLabeledEdgeRings(this.dirEdges);this.convertMaximalToMinimalEdgeRings(maximalRings);var edgeRingList=new ArrayList;for(var i=this.dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;if(de.isInRing())continue;var er=this.findEdgeRing(de);edgeRingList.add(er)}return edgeRingList};PolygonizeGraph.findLabeledEdgeRings=function(dirEdges){var edgeRingStarts=new ArrayList;var currLabel=1;for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;if(de.getLabel()>=0)continue;edgeRingStarts.add(de);var edges=PolygonizeGraph.findDirEdgesInRing(de);PolygonizeGraph.label(edges,currLabel);currLabel++}return edgeRingStarts};PolygonizeGraph.prototype.deleteCutEdges=function(){this.computeNextCWEdges();PolygonizeGraph.findLabeledEdgeRings(this.dirEdges);var cutLines=new ArrayList;for(var i=this.dirEdges.iterator();i.hasNext();){var de=i.next();if(de.isMarked())continue;var sym=de.getSym();if(de.getLabel()==sym.getLabel()){de.setMarked(true);sym.setMarked(true);var e=de.getEdge();cutLines.add(e.getLine())}}return cutLines};PolygonizeGraph.label=function(dirEdges,label){for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();de.setLabel(label)}};PolygonizeGraph.computeNextCWEdges=function(node){var deStar=node.getOutEdges();var startDE=null;var prevDE=null;for(var i=deStar.getEdges().iterator();i.hasNext();){var outDE=i.next();if(outDE.isMarked())continue;if(startDE==null)startDE=outDE;if(prevDE!=null){var sym=prevDE.getSym();sym.setNext(outDE)}prevDE=outDE}if(prevDE!=null){var sym=prevDE.getSym();sym.setNext(startDE)}};PolygonizeGraph.computeNextCCWEdges=function(node,label){var deStar=node.getOutEdges();var firstOutDE=null;var prevInDE=null;var edges=deStar.getEdges();for(var i=edges.size()-1;i>=0;i--){var de=edges.get(i);var sym=de.getSym();var outDE=null;if(de.getLabel()==label)outDE=de;var inDE=null;if(sym.getLabel()==label)inDE=sym;if(outDE==null&&inDE==null)continue;if(inDE!=null){prevInDE=inDE}if(outDE!=null){if(prevInDE!=null){prevInDE.setNext(outDE);prevInDE=null}if(firstOutDE==null)firstOutDE=outDE}}if(prevInDE!=null){Assert.isTrue(firstOutDE!=null);prevInDE.setNext(firstOutDE)}};PolygonizeGraph.findDirEdgesInRing=function(startDE){var de=startDE;var edges=new ArrayList;do{edges.add(de);de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return edges};PolygonizeGraph.prototype.findEdgeRing=function(startDE){var de=startDE;var er=new EdgeRing(this.factory);do{er.add(de);de.setRing(er);de=de.getNext();Assert.isTrue(de!=null,"found null DE in ring");Assert.isTrue(de==startDE||!de.isInRing(),"found DE already in ring")}while(de!=startDE);return er};PolygonizeGraph.prototype.deleteDangles=function(){var nodesToRemove=this.findNodesOfDegree(1);var dangleLines=new HashSet;var nodeStack=new Stack;for(var i=nodesToRemove.iterator();i.hasNext();){nodeStack.push(i.next())}while(!nodeStack.isEmpty()){var node=nodeStack.pop();PolygonizeGraph.deleteAllEdges(node);var nodeOutEdges=node.getOutEdges().getEdges();for(var i=nodeOutEdges.iterator();i.hasNext();){var de=i.next();de.setMarked(true);var sym=de.getSym();if(sym!=null)sym.setMarked(true);var e=de.getEdge();dangleLines.add(e.getLine());var toNode=de.getToNode();if(PolygonizeGraph.getDegreeNonDeleted(toNode)==1)nodeStack.push(toNode)}}return dangleLines};PolygonizeGraph.prototype.computeDepthParity=function(){while(true){var de=null;if(de==null)return;this.computeDepthParity(de)}};PolygonizeGraph.prototype.computeDepthParity=function(de){};jsts.operation.polygonize.PolygonizeGraph=PolygonizeGraph})();jsts.index.strtree.Interval=function(){var other;if(arguments.length===1){other=arguments[0];return jsts.index.strtree.Interval(other.min,other.max)}else if(arguments.length===2){jsts.util.Assert.isTrue(this.min<=this.max);this.min=arguments[0];this.max=arguments[1]}};jsts.index.strtree.Interval.prototype.min=null;jsts.index.strtree.Interval.prototype.max=null;jsts.index.strtree.Interval.prototype.getCentre=function(){return(this.min+this.max)/2};jsts.index.strtree.Interval.prototype.expandToInclude=function(other){this.max=Math.max(this.max,other.max);this.min=Math.min(this.min,other.min);return this};jsts.index.strtree.Interval.prototype.intersects=function(other){return!(other.min>this.max||other.max<this.min)};jsts.index.strtree.Interval.prototype.equals=function(o){if(!(o instanceof jsts.index.strtree.Interval)){return false}other=o;return this.min===other.min&&this.max===other.max};jsts.geom.GeometryFactory=function(precisionModel){this.precisionModel=precisionModel||new jsts.geom.PrecisionModel};jsts.geom.GeometryFactory.prototype.precisionModel=null;jsts.geom.GeometryFactory.prototype.getPrecisionModel=function(){return this.precisionModel};jsts.geom.GeometryFactory.prototype.createPoint=function(coordinate){var point=new jsts.geom.Point(coordinate,this);return point};jsts.geom.GeometryFactory.prototype.createLineString=function(coordinates){var lineString=new jsts.geom.LineString(coordinates,this);return lineString};jsts.geom.GeometryFactory.prototype.createLinearRing=function(coordinates){var linearRing=new jsts.geom.LinearRing(coordinates,this);return linearRing};jsts.geom.GeometryFactory.prototype.createPolygon=function(shell,holes){var polygon=new jsts.geom.Polygon(shell,holes,this);return polygon};jsts.geom.GeometryFactory.prototype.createMultiPoint=function(points){if(points&&points[0]instanceof jsts.geom.Coordinate){var converted=[];var i;for(i=0;i<points.length;i++){converted.push(this.createPoint(points[i]))}points=converted}return new jsts.geom.MultiPoint(points,this)};jsts.geom.GeometryFactory.prototype.createMultiLineString=function(lineStrings){return new jsts.geom.MultiLineString(lineStrings,this)};jsts.geom.GeometryFactory.prototype.createMultiPolygon=function(polygons){return new jsts.geom.MultiPolygon(polygons,this)};jsts.geom.GeometryFactory.prototype.buildGeometry=function(geomList){var geomClass=null;var isHeterogeneous=false;var hasGeometryCollection=false;for(var i=geomList.iterator();i.hasNext();){var geom=i.next();var partClass=geom.CLASS_NAME;if(geomClass===null){geomClass=partClass}if(!(partClass===geomClass)){isHeterogeneous=true}if(geom.isGeometryCollectionBase())hasGeometryCollection=true}if(geomClass===null){return this.createGeometryCollection(null)}if(isHeterogeneous||hasGeometryCollection){return this.createGeometryCollection(geomList.toArray())}var geom0=geomList.get(0);var isCollection=geomList.size()>1;if(isCollection){if(geom0 instanceof jsts.geom.Polygon){return this.createMultiPolygon(geomList.toArray())}else if(geom0 instanceof jsts.geom.LineString){return this.createMultiLineString(geomList.toArray())}else if(geom0 instanceof jsts.geom.Point){return this.createMultiPoint(geomList.toArray())}jsts.util.Assert.shouldNeverReachHere("Unhandled class: "+geom0)}return geom0};jsts.geom.GeometryFactory.prototype.createGeometryCollection=function(geometries){return new jsts.geom.GeometryCollection(geometries,this)};jsts.geom.GeometryFactory.prototype.toGeometry=function(envelope){if(envelope.isNull()){return this.createPoint(null)}if(envelope.getMinX()===envelope.getMaxX()&&envelope.getMinY()===envelope.getMaxY()){return this.createPoint(new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()))}if(envelope.getMinX()===envelope.getMaxX()||envelope.getMinY()===envelope.getMaxY()){return this.createLineString([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY())])}return this.createPolygon(this.createLinearRing([new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMaxY()),new jsts.geom.Coordinate(envelope.getMaxX(),envelope.getMinY()),new jsts.geom.Coordinate(envelope.getMinX(),envelope.getMinY())]),null)};jsts.geomgraph.NodeFactory=function(){};jsts.geomgraph.NodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,null)};(function(){jsts.geomgraph.Position=function(){};jsts.geomgraph.Position.ON=0;jsts.geomgraph.Position.LEFT=1;jsts.geomgraph.Position.RIGHT=2;jsts.geomgraph.Position.opposite=function(position){if(position===jsts.geomgraph.Position.LEFT){return jsts.geomgraph.Position.RIGHT}if(position===jsts.geomgraph.Position.RIGHT){return jsts.geomgraph.Position.LEFT}return position}})();jsts.geomgraph.TopologyLocation=function(){this.location=[];if(arguments.length===3){var on=arguments[0];var left=arguments[1];var right=arguments[2];this.init(3);this.location[jsts.geomgraph.Position.ON]=on;this.location[jsts.geomgraph.Position.LEFT]=left;this.location[jsts.geomgraph.Position.RIGHT]=right}else if(arguments[0]instanceof jsts.geomgraph.TopologyLocation){var gl=arguments[0];this.init(gl.location.length);if(gl!=null){for(var i=0;i<this.location.length;i++){this.location[i]=gl.location[i]}}}else if(typeof arguments[0]==="number"){var on=arguments[0];this.init(1);this.location[jsts.geomgraph.Position.ON]=on}else if(arguments[0]instanceof Array){var location=arguments[0];this.init(location.length)}};jsts.geomgraph.TopologyLocation.prototype.location=null;jsts.geomgraph.TopologyLocation.prototype.init=function(size){this.location[size-1]=null;this.setAllLocations(jsts.geom.Location.NONE)};jsts.geomgraph.TopologyLocation.prototype.get=function(posIndex){if(posIndex<this.location.length)return this.location[posIndex];return jsts.geom.Location.NONE};jsts.geomgraph.TopologyLocation.prototype.isNull=function(){for(var i=0;i<this.location.length;i++){if(this.location[i]!==jsts.geom.Location.NONE)return false}return true};jsts.geomgraph.TopologyLocation.prototype.isAnyNull=function(){for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE)return true}return false};jsts.geomgraph.TopologyLocation.prototype.isEqualOnSide=function(le,locIndex){return this.location[locIndex]==le.location[locIndex]};jsts.geomgraph.TopologyLocation.prototype.isArea=function(){return this.location.length>1};jsts.geomgraph.TopologyLocation.prototype.isLine=function(){return this.location.length===1};jsts.geomgraph.TopologyLocation.prototype.flip=function(){if(this.location.length<=1)return;var temp=this.location[jsts.geomgraph.Position.LEFT];this.location[jsts.geomgraph.Position.LEFT]=this.location[jsts.geomgraph.Position.RIGHT];this.location[jsts.geomgraph.Position.RIGHT]=temp};jsts.geomgraph.TopologyLocation.prototype.setAllLocations=function(locValue){for(var i=0;i<this.location.length;i++){this.location[i]=locValue}};jsts.geomgraph.TopologyLocation.prototype.setAllLocationsIfNull=function(locValue){for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE)this.location[i]=locValue}};jsts.geomgraph.TopologyLocation.prototype.setLocation=function(locIndex,locValue){if(locValue!==undefined){this.location[locIndex]=locValue}else{this.setLocation(jsts.geomgraph.Position.ON,locIndex)}};jsts.geomgraph.TopologyLocation.prototype.getLocations=function(){return location};jsts.geomgraph.TopologyLocation.prototype.setLocations=function(on,left,right){this.location[jsts.geomgraph.Position.ON]=on;this.location[jsts.geomgraph.Position.LEFT]=left;this.location[jsts.geomgraph.Position.RIGHT]=right};jsts.geomgraph.TopologyLocation.prototype.allPositionsEqual=function(loc){for(var i=0;i<this.location.length;i++){if(this.location[i]!==loc)return false}return true};jsts.geomgraph.TopologyLocation.prototype.merge=function(gl){if(gl.location.length>this.location.length){var newLoc=[];newLoc[jsts.geomgraph.Position.ON]=this.location[jsts.geomgraph.Position.ON];newLoc[jsts.geomgraph.Position.LEFT]=jsts.geom.Location.NONE;newLoc[jsts.geomgraph.Position.RIGHT]=jsts.geom.Location.NONE;this.location=newLoc}for(var i=0;i<this.location.length;i++){if(this.location[i]===jsts.geom.Location.NONE&&i<gl.location.length)this.location[i]=gl.location[i]}};jsts.geomgraph.Label=function(){this.elt=[];var geomIndex,onLoc,leftLoc,lbl,rightLoc;if(arguments.length===4){geomIndex=arguments[0];onLoc=arguments[1];leftLoc=arguments[2];rightLoc=arguments[3];this.elt[0]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);this.elt[1]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);this.elt[geomIndex].setLocations(onLoc,leftLoc,rightLoc)}else if(arguments.length===3){onLoc=arguments[0];leftLoc=arguments[1];rightLoc=arguments[2];this.elt[0]=new jsts.geomgraph.TopologyLocation(onLoc,leftLoc,rightLoc);this.elt[1]=new jsts.geomgraph.TopologyLocation(onLoc,leftLoc,rightLoc)}else if(arguments.length===2){geomIndex=arguments[0];onLoc=arguments[1];this.elt[0]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE);this.elt[1]=new jsts.geomgraph.TopologyLocation(jsts.geom.Location.NONE);this.elt[geomIndex].setLocation(onLoc)}else if(arguments[0]instanceof jsts.geomgraph.Label){lbl=arguments[0];this.elt[0]=new jsts.geomgraph.TopologyLocation(lbl.elt[0]);this.elt[1]=new jsts.geomgraph.TopologyLocation(lbl.elt[1])}else if(typeof arguments[0]==="number"){onLoc=arguments[0];this.elt[0]=new jsts.geomgraph.TopologyLocation(onLoc);this.elt[1]=new jsts.geomgraph.TopologyLocation(onLoc)}};jsts.geomgraph.Label.toLineLabel=function(label){var i,lineLabel=new jsts.geomgraph.Label(jsts.geom.Location.NONE);for(i=0;i<2;i++){lineLabel.setLocation(i,label.getLocation(i))}return lineLabel};jsts.geomgraph.Label.prototype.elt=null;jsts.geomgraph.Label.prototype.flip=function(){this.elt[0].flip();this.elt[1].flip()};jsts.geomgraph.Label.prototype.getLocation=function(geomIndex,posIndex){if(arguments.length==1){return this.getLocation2.apply(this,arguments)}return this.elt[geomIndex].get(posIndex)};jsts.geomgraph.Label.prototype.getLocation2=function(geomIndex){return this.elt[geomIndex].get(jsts.geomgraph.Position.ON)};jsts.geomgraph.Label.prototype.setLocation=function(geomIndex,posIndex,location){if(arguments.length==2){this.setLocation2.apply(this,arguments);return}this.elt[geomIndex].setLocation(posIndex,location)};jsts.geomgraph.Label.prototype.setLocation2=function(geomIndex,location){this.elt[geomIndex].setLocation(jsts.geomgraph.Position.ON,location)};jsts.geomgraph.Label.prototype.setAllLocations=function(geomIndex,location){this.elt[geomIndex].setAllLocations(location)};jsts.geomgraph.Label.prototype.setAllLocationsIfNull=function(geomIndex,location){if(arguments.length==1){this.setAllLocationsIfNull2.apply(this,arguments);return}this.elt[geomIndex].setAllLocationsIfNull(location)};jsts.geomgraph.Label.prototype.setAllLocationsIfNull2=function(location){this.setAllLocationsIfNull(0,location);this.setAllLocationsIfNull(1,location)};jsts.geomgraph.Label.prototype.merge=function(lbl){var i;for(i=0;i<2;i++){if(this.elt[i]===null&&lbl.elt[i]!==null){this.elt[i]=new jsts.geomgraph.TopologyLocation(lbl.elt[i])}else{this.elt[i].merge(lbl.elt[i])}}};jsts.geomgraph.Label.prototype.getGeometryCount=function(){var count=0;if(!this.elt[0].isNull()){count++}if(!this.elt[1].isNull()){count++}return count};jsts.geomgraph.Label.prototype.isNull=function(geomIndex){return this.elt[geomIndex].isNull()};jsts.geomgraph.Label.prototype.isAnyNull=function(geomIndex){return this.elt[geomIndex].isAnyNull()};jsts.geomgraph.Label.prototype.isArea=function(){if(arguments.length==1){return this.isArea2(arguments[0])}return this.elt[0].isArea()||this.elt[1].isArea()};jsts.geomgraph.Label.prototype.isArea2=function(geomIndex){return this.elt[geomIndex].isArea()};jsts.geomgraph.Label.prototype.isLine=function(geomIndex){return this.elt[geomIndex].isLine()};jsts.geomgraph.Label.prototype.isEqualOnSide=function(lbl,side){return this.elt[0].isEqualOnSide(lbl.elt[0],side)&&this.elt[1].isEqualOnSide(lbl.elt[1],side)};jsts.geomgraph.Label.prototype.allPositionsEqual=function(geomIndex,loc){return this.elt[geomIndex].allPositionsEqual(loc)};jsts.geomgraph.Label.prototype.toLine=function(geomIndex){if(this.elt[geomIndex].isArea()){this.elt[geomIndex]=new jsts.geomgraph.TopologyLocation(this.elt[geomIndex].location[0])}};jsts.geomgraph.EdgeRing=function(start,geometryFactory){this.edges=[];this.pts=[];this.holes=[];this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE);this.geometryFactory=geometryFactory;if(start){this.computePoints(start);this.computeRing()}};jsts.geomgraph.EdgeRing.prototype.startDe=null;jsts.geomgraph.EdgeRing.prototype.maxNodeDegree=-1;jsts.geomgraph.EdgeRing.prototype.edges=null;jsts.geomgraph.EdgeRing.prototype.pts=null;jsts.geomgraph.EdgeRing.prototype.label=null;jsts.geomgraph.EdgeRing.prototype.ring=null;jsts.geomgraph.EdgeRing.prototype._isHole=null;jsts.geomgraph.EdgeRing.prototype.shell=null;jsts.geomgraph.EdgeRing.prototype.holes=null;jsts.geomgraph.EdgeRing.prototype.geometryFactory=null;jsts.geomgraph.EdgeRing.prototype.isIsolated=function(){return this.label.getGeometryCount()==1};jsts.geomgraph.EdgeRing.prototype.isHole=function(){return this._isHole};jsts.geomgraph.EdgeRing.prototype.getCoordinate=function(i){return this.pts[i]};jsts.geomgraph.EdgeRing.prototype.getLinearRing=function(){return this.ring};jsts.geomgraph.EdgeRing.prototype.getLabel=function(){return this.label};jsts.geomgraph.EdgeRing.prototype.isShell=function(){return this.shell===null};jsts.geomgraph.EdgeRing.prototype.getShell=function(){return this.shell};jsts.geomgraph.EdgeRing.prototype.setShell=function(shell){this.shell=shell;if(shell!==null)shell.addHole(this)};jsts.geomgraph.EdgeRing.prototype.addHole=function(ring){this.holes.push(ring)};jsts.geomgraph.EdgeRing.prototype.toPolygon=function(geometryFactory){var holeLR=[];for(var i=0;i<this.holes.length;i++){holeLR[i]=this.holes[i].getLinearRing()}var poly=this.geometryFactory.createPolygon(this.getLinearRing(),holeLR);return poly};jsts.geomgraph.EdgeRing.prototype.computeRing=function(){if(this.ring!==null)return;var coord=[];for(var i=0;i<this.pts.length;i++){coord[i]=this.pts[i]}this.ring=this.geometryFactory.createLinearRing(coord);this._isHole=jsts.algorithm.CGAlgorithms.isCCW(this.ring.getCoordinates())};jsts.geomgraph.EdgeRing.prototype.getNext=function(de){throw new jsts.error.AbstractInvocationError};jsts.geomgraph.EdgeRing.prototype.setEdgeRing=function(de,er){throw new jsts.error.AbstractInvocationError};jsts.geomgraph.EdgeRing.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeRing.prototype.computePoints=function(start){this.startDe=start;var de=start;var isFirstEdge=true;do{if(de===null)throw new jsts.error.TopologyError("Found null DirectedEdge");if(de.getEdgeRing()===this)throw new jsts.error.TopologyError("Directed Edge visited twice during ring-building at "+de.getCoordinate());this.edges.push(de);var label=de.getLabel();jsts.util.Assert.isTrue(label.isArea());this.mergeLabel(label);this.addPoints(de.getEdge(),de.isForward(),isFirstEdge);isFirstEdge=false;this.setEdgeRing(de,this);de=this.getNext(de)}while(de!==this.startDe)};jsts.geomgraph.EdgeRing.prototype.getMaxNodeDegree=function(){if(this.maxNodeDegree<0)this.computeMaxNodeDegree();return this.maxNodeDegree};jsts.geomgraph.EdgeRing.prototype.computeMaxNodeDegree=function(){this.maxNodeDegree=0;var de=this.startDe;do{var node=de.getNode();var degree=node.getEdges().getOutgoingDegree(this);if(degree>this.maxNodeDegree)this.maxNodeDegree=degree;de=this.getNext(de)}while(de!==this.startDe);this.maxNodeDegree*=2};jsts.geomgraph.EdgeRing.prototype.setInResult=function(){var de=this.startDe;do{de.getEdge().setInResult(true);de=de.getNext()}while(de!=this.startDe)};jsts.geomgraph.EdgeRing.prototype.mergeLabel=function(deLabel){this.mergeLabel2(deLabel,0);this.mergeLabel2(deLabel,1)};jsts.geomgraph.EdgeRing.prototype.mergeLabel2=function(deLabel,geomIndex){var loc=deLabel.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(loc==jsts.geom.Location.NONE)return;if(this.label.getLocation(geomIndex)===jsts.geom.Location.NONE){this.label.setLocation(geomIndex,loc);return}};jsts.geomgraph.EdgeRing.prototype.addPoints=function(edge,isForward,isFirstEdge){var edgePts=edge.getCoordinates();if(isForward){var startIndex=1;if(isFirstEdge)startIndex=0;for(var i=startIndex;i<edgePts.length;i++){this.pts.push(edgePts[i])}}else{var startIndex=edgePts.length-2;if(isFirstEdge)startIndex=edgePts.length-1;for(var i=startIndex;i>=0;i--){this.pts.push(edgePts[i])}}};jsts.geomgraph.EdgeRing.prototype.containsPoint=function(p){var shell=this.getLinearRing();var env=shell.getEnvelopeInternal();if(!env.contains(p))return false;if(!jsts.algorithm.CGAlgorithms.isPointInRing(p,shell.getCoordinates()))return false;for(var i=0;i<this.holes.length;i++){var hole=this.holes[i];if(hole.containsPoint(p))return false}return true};(function(){jsts.geom.LinearRing=function(points,factory){jsts.geom.LineString.apply(this,arguments)};jsts.geom.LinearRing.prototype=new jsts.geom.LineString;jsts.geom.LinearRing.constructor=jsts.geom.LinearRing;jsts.geom.LinearRing.prototype.getBoundaryDimension=function(){return jsts.geom.Dimension.FALSE};jsts.geom.LinearRing.prototype.isSimple=function(){return true};jsts.geom.LinearRing.prototype.getGeometryType=function(){return"LinearRing"};jsts.geom.LinearRing.MINIMUM_VALID_SIZE=4;jsts.geom.LinearRing.prototype.CLASS_NAME="jsts.geom.LinearRing"})();jsts.index.strtree.Boundable=function(){};jsts.index.strtree.Boundable.prototype.getBounds=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractNode=function(level){this.level=level;this.childBoundables=[]};jsts.index.strtree.AbstractNode.prototype=new jsts.index.strtree.Boundable;jsts.index.strtree.AbstractNode.constructor=jsts.index.strtree.AbstractNode;jsts.index.strtree.AbstractNode.prototype.childBoundables=null;jsts.index.strtree.AbstractNode.prototype.bounds=null;jsts.index.strtree.AbstractNode.prototype.level=null;jsts.index.strtree.AbstractNode.prototype.getChildBoundables=function(){return this.childBoundables};jsts.index.strtree.AbstractNode.prototype.computeBounds=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractNode.prototype.getBounds=function(){if(this.bounds===null){this.bounds=this.computeBounds()}return this.bounds};jsts.index.strtree.AbstractNode.prototype.getLevel=function(){return this.level};jsts.index.strtree.AbstractNode.prototype.addChildBoundable=function(childBoundable){this.childBoundables.push(childBoundable)};(function(){jsts.noding.Noder=function(){};jsts.noding.Noder.prototype.computeNodes=jsts.abstractFunc;jsts.noding.Noder.prototype.getNodedSubstrings=jsts.abstractFunc})();(function(){var Noder=jsts.noding.Noder;jsts.noding.SinglePassNoder=function(){};jsts.noding.SinglePassNoder.prototype=new Noder;jsts.noding.SinglePassNoder.constructor=jsts.noding.SinglePassNoder;jsts.noding.SinglePassNoder.prototype.segInt=null;jsts.noding.SinglePassNoder.prototype.setSegmentIntersector=function(segInt){this.segInt=segInt}})();jsts.index.SpatialIndex=function(){};jsts.index.SpatialIndex.prototype.insert=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError};jsts.index.SpatialIndex.prototype.query=function(searchEnv,visitor){throw new jsts.error.AbstractMethodInvocationError};jsts.index.SpatialIndex.prototype.remove=function(itemEnv,item){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree=function(nodeCapacity){if(nodeCapacity===undefined)return;this.itemBoundables=[];jsts.util.Assert.isTrue(nodeCapacity>1,"Node capacity must be greater than 1");this.nodeCapacity=nodeCapacity};jsts.index.strtree.AbstractSTRtree.IntersectsOp=function(){};jsts.index.strtree.AbstractSTRtree.IntersectsOp.prototype.intersects=function(aBounds,bBounds){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.root=null;jsts.index.strtree.AbstractSTRtree.prototype.built=false;jsts.index.strtree.AbstractSTRtree.prototype.itemBoundables=null;jsts.index.strtree.AbstractSTRtree.prototype.nodeCapacity=null;jsts.index.strtree.AbstractSTRtree.prototype.build=function(){
jsts.util.Assert.isTrue(!this.built);this.root=this.itemBoundables.length===0?this.createNode(0):this.createHigherLevels(this.itemBoundables,-1);this.built=true};jsts.index.strtree.AbstractSTRtree.prototype.createNode=function(level){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.createParentBoundables=function(childBoundables,newLevel){jsts.util.Assert.isTrue(!(childBoundables.length===0));var parentBoundables=[];parentBoundables.push(this.createNode(newLevel));var sortedChildBoundables=[];for(var i=0;i<childBoundables.length;i++){sortedChildBoundables.push(childBoundables[i])}sortedChildBoundables.sort(this.getComparator());for(var i=0;i<sortedChildBoundables.length;i++){var childBoundable=sortedChildBoundables[i];if(this.lastNode(parentBoundables).getChildBoundables().length===this.getNodeCapacity()){parentBoundables.push(this.createNode(newLevel))}this.lastNode(parentBoundables).addChildBoundable(childBoundable)}return parentBoundables};jsts.index.strtree.AbstractSTRtree.prototype.lastNode=function(nodes){return nodes[nodes.length-1]};jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles=function(a,b){return a>b?1:a<b?-1:0};jsts.index.strtree.AbstractSTRtree.prototype.createHigherLevels=function(boundablesOfALevel,level){jsts.util.Assert.isTrue(!(boundablesOfALevel.length===0));var parentBoundables=this.createParentBoundables(boundablesOfALevel,level+1);if(parentBoundables.length===1){return parentBoundables[0]}return this.createHigherLevels(parentBoundables,level+1)};jsts.index.strtree.AbstractSTRtree.prototype.getRoot=function(){if(!this.built)this.build();return this.root};jsts.index.strtree.AbstractSTRtree.prototype.getNodeCapacity=function(){return this.nodeCapacity};jsts.index.strtree.AbstractSTRtree.prototype.size=function(){if(arguments.length===1){return this.size2(arguments[0])}if(!this.built){this.build()}if(this.itemBoundables.length===0){return 0}return this.size2(root)};jsts.index.strtree.AbstractSTRtree.prototype.size2=function(node){var size=0;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){size+=this.size(childBoundable)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){size+=1}}return size};jsts.index.strtree.AbstractSTRtree.prototype.depth=function(){if(arguments.length===1){return this.depth2(arguments[0])}if(!this.built){this.build()}if(this.itemBoundables.length===0){return 0}return this.depth2(root)};jsts.index.strtree.AbstractSTRtree.prototype.depth2=function(){var maxChildDepth=0;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){var childDepth=this.depth(childBoundable);if(childDepth>maxChildDepth)maxChildDepth=childDepth}}return maxChildDepth+1};jsts.index.strtree.AbstractSTRtree.prototype.insert=function(bounds,item){jsts.util.Assert.isTrue(!this.built,"Cannot insert items into an STR packed R-tree after it has been built.");this.itemBoundables.push(new jsts.index.strtree.ItemBoundable(bounds,item))};jsts.index.strtree.AbstractSTRtree.prototype.query=function(searchBounds){if(arguments.length>1){this.query2.apply(this,arguments)}if(!this.built){this.build()}var matches=[];if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null);return matches}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query3(searchBounds,this.root,matches)}return matches};jsts.index.strtree.AbstractSTRtree.prototype.query2=function(searchBounds,visitor){if(arguments.length>2){this.query3.apply(this,arguments)}if(!this.built){this.build()}if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()===null)}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){this.query4(searchBounds,this.root,visitor)}};jsts.index.strtree.AbstractSTRtree.prototype.query3=function(searchBounds,node,matches){if(!(arguments[2]instanceof Array)){this.query4.apply(this,arguments)}var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){this.query3(searchBounds,childBoundable,matches)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){matches.push(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}};jsts.index.strtree.AbstractSTRtree.prototype.query4=function(searchBounds,node,visitor){var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){this.query4(searchBounds,childBoundable,visitor)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){visitor.visitItem(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}};jsts.index.strtree.AbstractSTRtree.prototype.getIntersectsOp=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.AbstractSTRtree.prototype.itemsTree=function(){if(arguments.length===1){return this.itemsTree2.apply(this,arguments)}if(!this.built){this.build()}var valuesTree=this.itemsTree2(this.root);if(valuesTree===null)return[];return valuesTree};jsts.index.strtree.AbstractSTRtree.prototype.itemsTree2=function(node){var valuesTreeForNode=[];var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.AbstractNode){var valuesTreeForChild=this.itemsTree(childBoundable);if(valuesTreeForChild!=null)valuesTreeForNode.push(valuesTreeForChild)}else if(childBoundable instanceof jsts.index.strtree.ItemBoundable){valuesTreeForNode.push(childBoundable.getItem())}else{jsts.util.Assert.shouldNeverReachHere()}}if(valuesTreeForNode.length<=0)return null;return valuesTreeForNode};jsts.index.strtree.AbstractSTRtree.prototype.remove=function(searchBounds,item){if(!this.built){this.build()}if(this.itemBoundables.length===0){jsts.util.Assert.isTrue(this.root.getBounds()==null)}if(this.getIntersectsOp().intersects(this.root.getBounds(),searchBounds)){return this.remove2(searchBounds,this.root,item)}return false};jsts.index.strtree.AbstractSTRtree.prototype.remove2=function(searchBounds,node,item){var found=this.removeItem(node,item);if(found)return true;var childToPrune=null;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(!this.getIntersectsOp().intersects(childBoundable.getBounds(),searchBounds)){continue}if(childBoundable instanceof jsts.index.strtree.AbstractNode){found=this.remove(searchBounds,childBoundable,item);if(found){childToPrune=childBoundable;break}}}if(childToPrune!=null){if(childToPrune.getChildBoundables().length===0){childBoundables.splice(childBoundables.indexOf(childToPrune),1)}}return found};jsts.index.strtree.AbstractSTRtree.prototype.removeItem=function(node,item){var childToRemove=null;var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(childBoundable instanceof jsts.index.strtree.ItemBoundable){if(childBoundable.getItem()===item)childToRemove=childBoundable}}if(childToRemove!==null){childBoundables.splice(childBoundables.indexOf(childToRemove),1);return true}return false};jsts.index.strtree.AbstractSTRtree.prototype.boundablesAtLevel=function(level){if(arguments.length>1){this.boundablesAtLevel2.apply(this,arguments);return}var boundables=[];this.boundablesAtLevel2(level,this.root,boundables);return boundables};jsts.index.strtree.AbstractSTRtree.prototype.boundablesAtLevel2=function(level,top,boundables){jsts.util.Assert.isTrue(level>-2);if(top.getLevel()===level){boundables.add(top);return}var childBoundables=node.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var boundable=childBoundables[i];if(boundable instanceof jsts.index.strtree.AbstractNode){this.boundablesAtLevel(level,boundable,boundables)}else{jsts.util.Assert.isTrue(boundable instanceof jsts.index.strtree.ItemBoundable);if(level===-1){boundables.add(boundable)}}}return};jsts.index.strtree.AbstractSTRtree.prototype.getComparator=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.index.strtree.STRtree=function(nodeCapacity){nodeCapacity=nodeCapacity||jsts.index.strtree.STRtree.DEFAULT_NODE_CAPACITY;jsts.index.strtree.AbstractSTRtree.call(this,nodeCapacity)};jsts.index.strtree.STRtree.prototype=new jsts.index.strtree.AbstractSTRtree;jsts.index.strtree.STRtree.constructor=jsts.index.strtree.STRtree;jsts.index.strtree.STRtree.prototype.xComparator=function(o1,o2){return jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles(jsts.index.strtree.STRtree.prototype.centreX(o1.getBounds()),jsts.index.strtree.STRtree.prototype.centreX(o2.getBounds()))};jsts.index.strtree.STRtree.prototype.yComparator=function(o1,o2){return jsts.index.strtree.AbstractSTRtree.prototype.compareDoubles(jsts.index.strtree.STRtree.prototype.centreY(o1.getBounds()),jsts.index.strtree.STRtree.prototype.centreY(o2.getBounds()))};jsts.index.strtree.STRtree.prototype.centreX=function(e){return jsts.index.strtree.STRtree.prototype.avg(e.getMinX(),e.getMaxX())};jsts.index.strtree.STRtree.prototype.centreY=function(e){return jsts.index.strtree.STRtree.prototype.avg(e.getMinY(),e.getMaxY())};jsts.index.strtree.STRtree.prototype.avg=function(a,b){return(a+b)/2};jsts.index.strtree.STRtree.prototype.intersectsOp={intersects:function(aBounds,bBounds){return aBounds.intersects(bBounds)}};jsts.index.strtree.STRtree.prototype.createParentBoundables=function(childBoundables,newLevel){jsts.util.Assert.isTrue(!(childBoundables.length===0));var minLeafCount=Math.ceil(childBoundables.length/this.getNodeCapacity());var sortedChildBoundables=[];for(var i=0;i<childBoundables.length;i++){sortedChildBoundables.push(childBoundables[i])}sortedChildBoundables.sort(this.xComparator);var verticalSlices=this.verticalSlices(sortedChildBoundables,Math.ceil(Math.sqrt(minLeafCount)));return this.createParentBoundablesFromVerticalSlices(verticalSlices,newLevel)};jsts.index.strtree.STRtree.prototype.createParentBoundablesFromVerticalSlices=function(verticalSlices,newLevel){jsts.util.Assert.isTrue(verticalSlices.length>0);var parentBoundables=[];for(var i=0;i<verticalSlices.length;i++){parentBoundables=parentBoundables.concat(this.createParentBoundablesFromVerticalSlice(verticalSlices[i],newLevel))}return parentBoundables};jsts.index.strtree.STRtree.prototype.createParentBoundablesFromVerticalSlice=function(childBoundables,newLevel){return jsts.index.strtree.AbstractSTRtree.prototype.createParentBoundables.call(this,childBoundables,newLevel)};jsts.index.strtree.STRtree.prototype.verticalSlices=function(childBoundables,sliceCount){var sliceCapacity=Math.ceil(childBoundables.length/sliceCount);var slices=[];var i=0,boundablesAddedToSlice,childBoundable;for(var j=0;j<sliceCount;j++){slices[j]=[];boundablesAddedToSlice=0;while(i<childBoundables.length&&boundablesAddedToSlice<sliceCapacity){childBoundable=childBoundables[i++];slices[j].push(childBoundable);boundablesAddedToSlice++}}return slices};jsts.index.strtree.STRtree.DEFAULT_NODE_CAPACITY=10;jsts.index.strtree.STRtree.prototype.createNode=function(level){var abstractNode=new jsts.index.strtree.AbstractNode(level);abstractNode.computeBounds=function(){var bounds=null;var childBoundables=this.getChildBoundables();for(var i=0;i<childBoundables.length;i++){var childBoundable=childBoundables[i];if(bounds===null){bounds=new jsts.geom.Envelope(childBoundable.getBounds())}else{bounds.expandToInclude(childBoundable.getBounds())}}return bounds};return abstractNode};jsts.index.strtree.STRtree.prototype.getIntersectsOp=function(){return this.intersectsOp};jsts.index.strtree.STRtree.prototype.insert=function(itemEnv,item){if(itemEnv.isNull()){return}jsts.index.strtree.AbstractSTRtree.prototype.insert.call(this,itemEnv,item)};jsts.index.strtree.STRtree.prototype.query=function(searchEnv,visitor){return jsts.index.strtree.AbstractSTRtree.prototype.query.apply(this,arguments)};jsts.index.strtree.STRtree.prototype.remove=function(itemEnv,item){return jsts.index.strtree.AbstractSTRtree.prototype.remove.call(this,itemEnv,item)};jsts.index.strtree.STRtree.prototype.size=function(){return jsts.index.strtree.AbstractSTRtree.prototype.size.call(this)};jsts.index.strtree.STRtree.prototype.depth=function(){return jsts.index.strtree.AbstractSTRtree.prototype.depth.call(this)};jsts.index.strtree.STRtree.prototype.getComparator=function(){return this.yComparator};jsts.index.strtree.STRtree.prototype.nearestNeighbour=function(itemDist){var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),this.getRoot(),itemDist);return this.nearestNeighbour4(bp)};jsts.index.strtree.STRtree.prototype.nearestNeighbour2=function(env,item,itemDist){var bnd=new jsts.index.strtree.ItemBoundable(env,item);var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),bnd,itemDist);return this.nearestNeighbour4(bp)[0]};jsts.index.strtree.STRtree.prototype.nearestNeighbour3=function(tree,itemDist){var bp=new jsts.index.strtree.BoundablePair(this.getRoot(),tree.getRoot(),itemDist);return this.nearestNeighbour4(bp)};jsts.index.strtree.STRtree.prototype.nearestNeighbour4=function(initBndPair){return this.nearestNeighbour5(initBndPair,Double.POSITIVE_INFINITY)};jsts.index.strtree.STRtree.prototype.nearestNeighbour5=function(initBndPair,maxDistance){var distanceLowerBound=maxDistance;var minPair=null;var priQ=[];priQ.push(initBndPair);while(!priQ.isEmpty()&&distanceLowerBound>0){var bndPair=priQ.pop();var currentDistance=bndPair.getDistance();if(currentDistance>=distanceLowerBound)break;if(bndPair.isLeaves()){distanceLowerBound=currentDistance;minPair=bndPair}else{bndPair.expandToQueue(priQ,distanceLowerBound)}}return[minPair.getBoundable(0).getItem(),minPair.getBoundable(1).getItem()]};jsts.noding.SegmentString=function(){};jsts.noding.SegmentString.prototype.getData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.setData=jsts.abstractFunc;jsts.noding.SegmentString.prototype.size=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinate=jsts.abstractFunc;jsts.noding.SegmentString.prototype.getCoordinates=jsts.abstractFunc;jsts.noding.SegmentString.prototype.isClosed=jsts.abstractFunc;jsts.noding.NodableSegmentString=function(){};jsts.noding.NodableSegmentString.prototype=new jsts.noding.SegmentString;jsts.noding.NodableSegmentString.prototype.addIntersection=jsts.abstractFunc;jsts.noding.NodedSegmentString=function(pts,data){this.nodeList=new jsts.noding.SegmentNodeList(this);this.pts=pts;this.data=data};jsts.noding.NodedSegmentString.prototype=new jsts.noding.NodableSegmentString;jsts.noding.NodedSegmentString.constructor=jsts.noding.NodedSegmentString;jsts.noding.NodedSegmentString.getNodedSubstrings=function(segStrings){if(arguments.length===2){jsts.noding.NodedSegmentString.getNodedSubstrings2.apply(this,arguments);return}var resultEdgelist=new javascript.util.ArrayList;jsts.noding.NodedSegmentString.getNodedSubstrings2(segStrings,resultEdgelist);return resultEdgelist};jsts.noding.NodedSegmentString.getNodedSubstrings2=function(segStrings,resultEdgelist){for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();ss.getNodeList().addSplitEdges(resultEdgelist)}};jsts.noding.NodedSegmentString.prototype.nodeList=null;jsts.noding.NodedSegmentString.prototype.pts=null;jsts.noding.NodedSegmentString.prototype.data=null;jsts.noding.NodedSegmentString.prototype.getData=function(){return this.data};jsts.noding.NodedSegmentString.prototype.setData=function(data){this.data=data};jsts.noding.NodedSegmentString.prototype.getNodeList=function(){return this.nodeList};jsts.noding.NodedSegmentString.prototype.size=function(){return this.pts.length};jsts.noding.NodedSegmentString.prototype.getCoordinate=function(i){return this.pts[i]};jsts.noding.NodedSegmentString.prototype.getCoordinates=function(){return this.pts};jsts.noding.NodedSegmentString.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.noding.NodedSegmentString.prototype.getSegmentOctant=function(index){if(index===this.pts.length-1)return-1;return this.safeOctant(this.getCoordinate(index),this.getCoordinate(index+1))};jsts.noding.NodedSegmentString.prototype.safeOctant=function(p0,p1){if(p0.equals2D(p1))return 0;return jsts.noding.Octant.octant(p0,p1)};jsts.noding.NodedSegmentString.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i<li.getIntersectionNum();i++){this.addIntersection(li,segmentIndex,geomIndex,i)}};jsts.noding.NodedSegmentString.prototype.addIntersection=function(li,segmentIndex,geomIndex,intIndex){if(li instanceof jsts.geom.Coordinate){this.addIntersection2.apply(this,arguments);return}var intPt=new jsts.geom.Coordinate(li.getIntersection(intIndex));this.addIntersection2(intPt,segmentIndex)};jsts.noding.NodedSegmentString.prototype.addIntersection2=function(intPt,segmentIndex){this.addIntersectionNode(intPt,segmentIndex)};jsts.noding.NodedSegmentString.prototype.addIntersectionNode=function(intPt,segmentIndex){var normalizedSegmentIndex=segmentIndex;var nextSegIndex=normalizedSegmentIndex+1;if(nextSegIndex<this.pts.length){var nextPt=this.pts[nextSegIndex];if(intPt.equals2D(nextPt)){normalizedSegmentIndex=nextSegIndex}}var ei=this.nodeList.add(intPt,normalizedSegmentIndex);return ei};jsts.noding.NodedSegmentString.prototype.toString=function(){var geometryFactory=new jsts.geom.GeometryFactory;return(new jsts.io.WKTWriter).write(geometryFactory.createLineString(this.pts))};jsts.index.chain.MonotoneChainBuilder=function(){};jsts.index.chain.MonotoneChainBuilder.toIntArray=function(list){var array=[];for(var i=0;i<list.length;i++){array[i]=list[i]}return array};jsts.index.chain.MonotoneChainBuilder.getChains=function(pts){if(arguments.length===2){return jsts.index.chain.MonotoneChainBuilder.getChains2.apply(this,arguments)}return jsts.index.chain.MonotoneChainBuilder.getChains2(pts,null)};jsts.index.chain.MonotoneChainBuilder.getChains2=function(pts,context){var mcList=[];var startIndex=jsts.index.chain.MonotoneChainBuilder.getChainStartIndices(pts);for(var i=0;i<startIndex.length-1;i++){var mc=new jsts.index.chain.MonotoneChain(pts,startIndex[i],startIndex[i+1],context);mcList.push(mc)}return mcList};jsts.index.chain.MonotoneChainBuilder.getChainStartIndices=function(pts){var start=0;var startIndexList=[];startIndexList.push(start);do{var last=jsts.index.chain.MonotoneChainBuilder.findChainEnd(pts,start);startIndexList.push(last);start=last}while(start<pts.length-1);var startIndex=jsts.index.chain.MonotoneChainBuilder.toIntArray(startIndexList);return startIndex};jsts.index.chain.MonotoneChainBuilder.findChainEnd=function(pts,start){var safeStart=start;while(safeStart<pts.length-1&&pts[safeStart].equals2D(pts[safeStart+1])){safeStart++}if(safeStart>=pts.length-1){return pts.length-1}var chainQuad=jsts.geomgraph.Quadrant.quadrant(pts[safeStart],pts[safeStart+1]);var last=start+1;while(last<pts.length){if(!pts[last-1].equals2D(pts[last])){var quad=jsts.geomgraph.Quadrant.quadrant(pts[last-1],pts[last]);if(quad!==chainQuad)break}last++}return last-1};jsts.algorithm.LineIntersector=function(){this.inputLines=[[],[]];this.intPt=[null,null];this.pa=this.intPt[0];this.pb=this.intPt[1];this.result=jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.LineIntersector.NO_INTERSECTION=0;jsts.algorithm.LineIntersector.POINT_INTERSECTION=1;jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION=2;jsts.algorithm.LineIntersector.prototype.setPrecisionModel=function(precisionModel){this.precisionModel=precisionModel};jsts.algorithm.LineIntersector.prototype.getEndpoint=function(segmentIndex,ptIndex){return this.inputLines[segmentIndex][ptIndex]};jsts.algorithm.LineIntersector.computeEdgeDistance=function(p,p0,p1){var dx=Math.abs(p1.x-p0.x);var dy=Math.abs(p1.y-p0.y);var dist=-1;if(p.equals(p0)){dist=0}else if(p.equals(p1)){if(dx>dy){dist=dx}else{dist=dy}}else{var pdx=Math.abs(p.x-p0.x);var pdy=Math.abs(p.y-p0.y);if(dx>dy){dist=pdx}else{dist=pdy}if(dist===0&&!p.equals(p0)){dist=Math.max(pdx,pdy)}}if(dist===0&&!p.equals(p0)){throw new jsts.error.IllegalArgumentError("Bad distance calculation")}return dist};jsts.algorithm.LineIntersector.nonRobustComputeEdgeDistance=function(p,p1,p2){var dx=p.x-p1.x;var dy=p.y-p1.y;var dist=Math.sqrt(dx*dx+dy*dy);if(!(dist===0&&!p.equals(p1))){throw new jsts.error.IllegalArgumentError("Invalid distance calculation")}return dist};jsts.algorithm.LineIntersector.prototype.result=null;jsts.algorithm.LineIntersector.prototype.inputLines=null;jsts.algorithm.LineIntersector.prototype.intPt=null;jsts.algorithm.LineIntersector.prototype.intLineIndex=null;jsts.algorithm.LineIntersector.prototype._isProper=null;jsts.algorithm.LineIntersector.prototype.pa=null;jsts.algorithm.LineIntersector.prototype.pb=null;jsts.algorithm.LineIntersector.prototype.precisionModel=null;jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p,p1,p2){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.LineIntersector.prototype.isCollinear=function(){return this.result===jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION};jsts.algorithm.LineIntersector.prototype.computeIntersection=function(p1,p2,p3,p4){this.inputLines[0][0]=p1;this.inputLines[0][1]=p2;this.inputLines[1][0]=p3;this.inputLines[1][1]=p4;this.result=this.computeIntersect(p1,p2,p3,p4)};jsts.algorithm.LineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.LineIntersector.prototype.isEndPoint=function(){return this.hasIntersection()&&!this._isProper};jsts.algorithm.LineIntersector.prototype.hasIntersection=function(){return this.result!==jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.LineIntersector.prototype.getIntersectionNum=function(){return this.result};jsts.algorithm.LineIntersector.prototype.getIntersection=function(intIndex){return this.intPt[intIndex]};jsts.algorithm.LineIntersector.prototype.computeIntLineIndex=function(){if(this.intLineIndex===null){this.intLineIndex=[[],[]];this.computeIntLineIndex(0);this.computeIntLineIndex(1)}};jsts.algorithm.LineIntersector.prototype.isIntersection=function(pt){var i;for(i=0;i<this.result;i++){if(this.intPt[i].equals2D(pt)){return true}}return false};jsts.algorithm.LineIntersector.prototype.isInteriorIntersection=function(){if(arguments.length===1){return this.isInteriorIntersection2.apply(this,arguments)}if(this.isInteriorIntersection(0)){return true}if(this.isInteriorIntersection(1)){return true}return false};jsts.algorithm.LineIntersector.prototype.isInteriorIntersection2=function(inputLineIndex){var i;for(i=0;i<this.result;i++){if(!(this.intPt[i].equals2D(this.inputLines[inputLineIndex][0])||this.intPt[i].equals2D(this.inputLines[inputLineIndex][1]))){return true}}return false};jsts.algorithm.LineIntersector.prototype.isProper=function(){return this.hasIntersection()&&this._isProper};jsts.algorithm.LineIntersector.prototype.getIntersectionAlongSegment=function(segmentIndex,intIndex){this.computeIntLineIndex();return this.intPt[intLineIndex[segmentIndex][intIndex]]};jsts.algorithm.LineIntersector.prototype.getIndexAlongSegment=function(segmentIndex,intIndex){this.computeIntLineIndex();return this.intLineIndex[segmentIndex][intIndex]};jsts.algorithm.LineIntersector.prototype.computeIntLineIndex=function(segmentIndex){var dist0=this.getEdgeDistance(segmentIndex,0);var dist1=this.getEdgeDistance(segmentIndex,1);if(dist0>dist1){this.intLineIndex[segmentIndex][0]=0;this.intLineIndex[segmentIndex][1]=1}else{this.intLineIndex[segmentIndex][0]=1;this.intLineIndex[segmentIndex][1]=0}};jsts.algorithm.LineIntersector.prototype.getEdgeDistance=function(segmentIndex,intIndex){var dist=jsts.algorithm.LineIntersector.computeEdgeDistance(this.intPt[intIndex],this.inputLines[segmentIndex][0],this.inputLines[segmentIndex][1]);return dist};jsts.algorithm.RobustLineIntersector=function(){jsts.algorithm.RobustLineIntersector.prototype.constructor.call(this)};jsts.algorithm.RobustLineIntersector.prototype=new jsts.algorithm.LineIntersector;jsts.algorithm.RobustLineIntersector.prototype.computeIntersection=function(p,p1,p2){if(arguments.length===4){jsts.algorithm.LineIntersector.prototype.computeIntersection.apply(this,arguments);return}this._isProper=false;if(jsts.geom.Envelope.intersects(p1,p2,p)){if(jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,p)===0&&jsts.algorithm.CGAlgorithms.orientationIndex(p2,p1,p)===0){this._isProper=true;if(p.equals(p1)||p.equals(p2)){this._isProper=false}this.result=jsts.algorithm.LineIntersector.POINT_INTERSECTION;return}}this.result=jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.computeIntersect=function(p1,p2,q1,q2){this._isProper=false;if(!jsts.geom.Envelope.intersects(p1,p2,q1,q2)){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var Pq1=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q1);var Pq2=jsts.algorithm.CGAlgorithms.orientationIndex(p1,p2,q2);if(Pq1>0&&Pq2>0||Pq1<0&&Pq2<0){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var Qp1=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p1);var Qp2=jsts.algorithm.CGAlgorithms.orientationIndex(q1,q2,p2);if(Qp1>0&&Qp2>0||Qp1<0&&Qp2<0){return jsts.algorithm.LineIntersector.NO_INTERSECTION}var collinear=Pq1===0&&Pq2===0&&Qp1===0&&Qp2===0;if(collinear){return this.computeCollinearIntersection(p1,p2,q1,q2)}if(Pq1===0||Pq2===0||Qp1===0||Qp2===0){this._isProper=false;if(p1.equals2D(q1)||p1.equals2D(q2)){this.intPt[0]=p1}else if(p2.equals2D(q1)||p2.equals2D(q2)){this.intPt[0]=p2}else if(Pq1===0){this.intPt[0]=new jsts.geom.Coordinate(q1)}else if(Pq2===0){this.intPt[0]=new jsts.geom.Coordinate(q2)}else if(Qp1===0){this.intPt[0]=new jsts.geom.Coordinate(p1)}else if(Qp2===0){this.intPt[0]=new jsts.geom.Coordinate(p2)}}else{this._isProper=true;this.intPt[0]=this.intersection(p1,p2,q1,q2)}return jsts.algorithm.LineIntersector.POINT_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.computeCollinearIntersection=function(p1,p2,q1,q2){var p1q1p2=jsts.geom.Envelope.intersects(p1,p2,q1);var p1q2p2=jsts.geom.Envelope.intersects(p1,p2,q2);var q1p1q2=jsts.geom.Envelope.intersects(q1,q2,p1);var q1p2q2=jsts.geom.Envelope.intersects(q1,q2,p2);if(p1q1p2&&p1q2p2){this.intPt[0]=q1;this.intPt[1]=q2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(q1p1q2&&q1p2q2){this.intPt[0]=p1;this.intPt[1]=p2;return jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q1p2&&q1p1q2){this.intPt[0]=q1;this.intPt[1]=p1;return q1.equals(p1)&&!p1q2p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q1p2&&q1p2q2){this.intPt[0]=q1;this.intPt[1]=p2;return q1.equals(p2)&&!p1q2p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q2p2&&q1p1q2){this.intPt[0]=q2;this.intPt[1]=p1;return q2.equals(p1)&&!p1q1p2&&!q1p2q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}if(p1q2p2&&q1p2q2){this.intPt[0]=q2;this.intPt[1]=p2;return q2.equals(p2)&&!p1q1p2&&!q1p1q2?jsts.algorithm.LineIntersector.POINT_INTERSECTION:jsts.algorithm.LineIntersector.COLLINEAR_INTERSECTION}return jsts.algorithm.LineIntersector.NO_INTERSECTION};jsts.algorithm.RobustLineIntersector.prototype.intersection=function(p1,p2,q1,q2){var intPt=this.intersectionWithNormalization(p1,p2,q1,q2);if(!this.isInSegmentEnvelopes(intPt)){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2)}if(this.precisionModel!==null){this.precisionModel.makePrecise(intPt)}return intPt};jsts.algorithm.RobustLineIntersector.prototype.intersectionWithNormalization=function(p1,p2,q1,q2){var n1=new jsts.geom.Coordinate(p1);var n2=new jsts.geom.Coordinate(p2);var n3=new jsts.geom.Coordinate(q1);var n4=new jsts.geom.Coordinate(q2);var normPt=new jsts.geom.Coordinate;this.normalizeToEnvCentre(n1,n2,n3,n4,normPt);var intPt=this.safeHCoordinateIntersection(n1,n2,n3,n4);intPt.x+=normPt.x;intPt.y+=normPt.y;return intPt};jsts.algorithm.RobustLineIntersector.prototype.safeHCoordinateIntersection=function(p1,p2,q1,q2){var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(p1,p2,q1,q2)}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=jsts.algorithm.CentralEndpointIntersector.getIntersection(p1,p2,q1,q2)}else{throw e}}return intPt};jsts.algorithm.RobustLineIntersector.prototype.normalizeToMinimum=function(n1,n2,n3,n4,normPt){normPt.x=this.smallestInAbsValue(n1.x,n2.x,n3.x,n4.x);normPt.y=this.smallestInAbsValue(n1.y,n2.y,n3.y,n4.y);n1.x-=normPt.x;n1.y-=normPt.y;n2.x-=normPt.x;n2.y-=normPt.y;n3.x-=normPt.x;n3.y-=normPt.y;n4.x-=normPt.x;n4.y-=normPt.y};jsts.algorithm.RobustLineIntersector.prototype.normalizeToEnvCentre=function(n00,n01,n10,n11,normPt){var minX0=n00.x<n01.x?n00.x:n01.x;var minY0=n00.y<n01.y?n00.y:n01.y;var maxX0=n00.x>n01.x?n00.x:n01.x;var maxY0=n00.y>n01.y?n00.y:n01.y;var minX1=n10.x<n11.x?n10.x:n11.x;var minY1=n10.y<n11.y?n10.y:n11.y;var maxX1=n10.x>n11.x?n10.x:n11.x;var maxY1=n10.y>n11.y?n10.y:n11.y;var intMinX=minX0>minX1?minX0:minX1;var intMaxX=maxX0<maxX1?maxX0:maxX1;var intMinY=minY0>minY1?minY0:minY1;var intMaxY=maxY0<maxY1?maxY0:maxY1;var intMidX=(intMinX+intMaxX)/2;var intMidY=(intMinY+intMaxY)/2;normPt.x=intMidX;normPt.y=intMidY;n00.x-=normPt.x;n00.y-=normPt.y;n01.x-=normPt.x;n01.y-=normPt.y;n10.x-=normPt.x;n10.y-=normPt.y;n11.x-=normPt.x;n11.y-=normPt.y};jsts.algorithm.RobustLineIntersector.prototype.smallestInAbsValue=function(x1,x2,x3,x4){var x=x1;var xabs=Math.abs(x);if(Math.abs(x2)<xabs){x=x2;xabs=Math.abs(x2)}if(Math.abs(x3)<xabs){x=x3;xabs=Math.abs(x3)}if(Math.abs(x4)<xabs){x=x4}return x};jsts.algorithm.RobustLineIntersector.prototype.isInSegmentEnvelopes=function(intPt){var env0=new jsts.geom.Envelope(this.inputLines[0][0],this.inputLines[0][1]);var env1=new jsts.geom.Envelope(this.inputLines[1][0],this.inputLines[1][1]);return env0.contains(intPt)&&env1.contains(intPt)};jsts.algorithm.HCoordinate=function(){this.x=0;this.y=0;this.w=1;if(arguments.length===1){this.initFrom1Coordinate(arguments[0])}else if(arguments.length===2&&arguments[0]instanceof jsts.geom.Coordinate){this.initFrom2Coordinates(arguments[0],arguments[1])}else if(arguments.length===2&&arguments[0]instanceof jsts.algorithm.HCoordinate){this.initFrom2HCoordinates(arguments[0],arguments[1])}else if(arguments.length===2){this.initFromXY(arguments[0],arguments[1])}else if(arguments.length===3){this.initFromXYW(arguments[0],arguments[1],arguments[2])}else if(arguments.length===4){this.initFromXYW(arguments[0],arguments[1],arguments[2],arguments[3])}};jsts.algorithm.HCoordinate.intersection=function(p1,p2,q1,q2){var px,py,pw,qx,qy,qw,x,y,w,xInt,yInt;px=p1.y-p2.y;py=p2.x-p1.x;pw=p1.x*p2.y-p2.x*p1.y;qx=q1.y-q2.y;qy=q2.x-q1.x;qw=q1.x*q2.y-q2.x*q1.y;x=py*qw-qy*pw;y=qx*pw-px*qw;w=px*qy-qx*py;xInt=x/w;yInt=y/w;if(!isFinite(xInt)||!isFinite(yInt)){throw new jsts.error.NotRepresentableError}return new jsts.geom.Coordinate(xInt,yInt)};jsts.algorithm.HCoordinate.prototype.initFrom1Coordinate=function(p){this.x=p.x;this.y=p.y;this.w=1};jsts.algorithm.HCoordinate.prototype.initFrom2Coordinates=function(p1,p2){this.x=p1.y-p2.y;this.y=p2.x-p1.x;this.w=p1.x*p2.y-p2.x*p1.y};jsts.algorithm.HCoordinate.prototype.initFrom2HCoordinates=function(p1,p2){this.x=p1.y*p2.w-p2.y*p1.w;this.y=p2.x*p1.w-p1.x*p2.w;this.w=p1.x*p2.y-p2.x*p1.y;
};jsts.algorithm.HCoordinate.prototype.initFromXYW=function(x,y,w){this.x=x;this.y=y;this.w=w};jsts.algorithm.HCoordinate.prototype.initFromXY=function(x,y){this.x=x;this.y=y;this.w=1};jsts.algorithm.HCoordinate.prototype.initFrom4Coordinates=function(p1,p2,q1,q2){var px,py,pw,qx,qy,qw;px=p1.y-p2.y;py=p2.x-p1.x;pw=p1.x*p2.y-p2.x*p1.y;qx=q1.y-q2.y;qy=q2.x-q1.x;qw=q1.x*q2.y-q2.x*q1.y;this.x=py*qw-qy*pw;this.y=qx*pw-px*qw;this.w=px*qy-qx*py};jsts.algorithm.HCoordinate.prototype.getX=function(){var a=this.x/this.w;if(!isFinite(a)){throw new jsts.error.NotRepresentableError}return a};jsts.algorithm.HCoordinate.prototype.getY=function(){var a=this.y/this.w;if(!isFinite(a)){throw new jsts.error.NotRepresentableError}return a};jsts.algorithm.HCoordinate.prototype.getCoordinate=function(){var p=new jsts.geom.Coordinate;p.x=this.getX();p.y=this.getY();return p};jsts.geom.LineSegment=function(){if(arguments.length===0){this.p0=new jsts.geom.Coordinate;this.p1=new jsts.geom.Coordinate}else if(arguments.length===1){this.p0=arguments[0].p0;this.p1=arguments[0].p1}else if(arguments.length===2){this.p0=arguments[0];this.p1=arguments[1]}else if(arguments.length===4){this.p0=new jsts.geom.Coordinate(arguments[0],arguments[1]);this.p1=new jsts.geom.Coordinate(arguments[2],arguments[3])}};jsts.geom.LineSegment.prototype.p0=null;jsts.geom.LineSegment.prototype.p1=null;jsts.geom.LineSegment.midPoint=function(p0,p1){return new jsts.geom.Coordinate((p0.x+p1.x)/2,(p0.y+p1.y)/2)};jsts.geom.LineSegment.prototype.getCoordinate=function(i){if(i===0)return this.p0;return this.p1};jsts.geom.LineSegment.prototype.getLength=function(){return this.p0.distance(this.p1)};jsts.geom.LineSegment.prototype.isHorizontal=function(){return this.p0.y===this.p1.y};jsts.geom.LineSegment.prototype.isVertical=function(){return this.p0.x===this.p1.x};jsts.geom.LineSegment.prototype.orientationIndex=function(arg){if(arg instanceof jsts.geom.LineSegment){return this.orientationIndex1(arg)}else if(arg instanceof jsts.geom.Coordinate){return this.orientationIndex2(arg)}};jsts.geom.LineSegment.prototype.orientationIndex1=function(seg){var orient0=jsts.algorithm.CGAlgorithms.orientationIndex(this.p0,this.p1,seg.p0);var orient1=jsts.algorithm.CGAlgorithms.orientationIndex(this.p0,this.p1,seg.p1);if(orient0>=0&&orient1>=0){return Math.max(orient0,orient1)}if(orient0<=0&&orient1<=0){return Math.max(orient0,orient1)}return 0};jsts.geom.LineSegment.prototype.orientationIndex2=function(p){return jsts.algorithm.CGAlgorithms.orientationIndex(this.p0,this.p1,p)};jsts.geom.LineSegment.prototype.reverse=function(){var temp=this.p0;this.p0=this.p1;this.p1=temp};jsts.geom.LineSegment.prototype.normalize=function(){if(this.p1.compareTo(this.p0)<0)this.reverse()};jsts.geom.LineSegment.prototype.angle=function(){return Math.atan2(this.p1.y-this.p0.y,this.p1.x-this.p0.x)};jsts.geom.LineSegment.prototype.midPoint=function(){return jsts.geom.LineSegment.midPoint(this.p0,this.p1)};jsts.geom.LineSegment.prototype.distance=function(arg){if(arg instanceof jsts.geom.LineSegment){return this.distance1(arg)}else if(arg instanceof jsts.geom.Coordinate){return this.distance2(arg)}};jsts.geom.LineSegment.prototype.distance1=function(ls){return jsts.algorithm.CGAlgorithms.distanceLineLine(this.p0,this.p1,ls.p0,ls.p1)};jsts.geom.LineSegment.prototype.distance2=function(p){return jsts.algorithm.CGAlgorithms.distancePointLine(p,this.p0,this.p1)};jsts.geom.LineSegment.prototype.pointAlong=function(segmentLengthFraction){var coord=new jsts.geom.Coordinate;coord.x=this.p0.x+segmentLengthFraction*(this.p1.x-this.p0.x);coord.y=this.p0.y+segmentLengthFraction*(this.p1.y-this.p0.y);return coord};jsts.geom.LineSegment.prototype.pointAlongOffset=function(segmentLengthFraction,offsetDistance){var segx=this.p0.x+segmentLengthFraction*(this.p1.x-this.p0.x);var segy=this.p0.y+segmentLengthFraction*(this.p1.y-this.p0.y);var dx=this.p1.x-this.p0.x;var dy=this.p1.y-this.p0.y;var len=Math.sqrt(dx*dx+dy*dy);var ux=0;var uy=0;if(offsetDistance!==0){if(len<=0){throw"Cannot compute offset from zero-length line segment"}ux=offsetDistance*dx/len;uy=offsetDistance*dy/len}var offsetx=segx-uy;var offsety=segy+ux;var coord=new jsts.geom.Coordinate(offsetx,offsety);return coord};jsts.geom.LineSegment.prototype.projectionFactor=function(p){if(p.equals(this.p0))return 0;if(p.equals(this.p1))return 1;var dx=this.p1.x-this.p0.x;var dy=this.p1.y-this.p0.y;var len2=dx*dx+dy*dy;var r=((p.x-this.p0.x)*dx+(p.y-this.p0.y)*dy)/len2;return r};jsts.geom.LineSegment.prototype.segmentFraction=function(inputPt){var segFrac=this.projectionFactor(inputPt);if(segFrac<0){segFrac=0}else if(segFrac>1||isNaN(segFrac)){segFrac=1}return segFrac};jsts.geom.LineSegment.prototype.project=function(arg){if(arg instanceof jsts.geom.Coordinate){return this.project1(arg)}else if(arg instanceof jsts.geom.LineSegment){return this.project2(arg)}};jsts.geom.LineSegment.prototype.project1=function(p){if(p.equals(this.p0)||p.equals(this.p1)){return new jsts.geom.Coordinate(p)}var r=this.projectionFactor(p);var coord=new jsts.geom.Coordinate;coord.x=this.p0.x+r*(this.p1.x-this.p0.x);coord.y=this.p0.y+r*(this.p1.y-this.p0.y);return coord};jsts.geom.LineSegment.prototype.project2=function(seg){var pf0=this.projectionFactor(seg.p0);var pf1=this.projectionFactor(seg.p1);if(pf0>=1&&pf1>=1)return null;if(pf0<=0&&pf1<=0)return null;var newp0=this.project(seg.p0);if(pf0<0)newp0=p0;if(pf0>1)newp0=p1;var newp1=this.project(seg.p1);if(pf1<0)newp1=p0;if(pf1>1)newp1=p1;return new jsts.geom.LineSegment(newp0,newp1)};jsts.geom.LineSegment.prototype.closestPoint=function(p){var factor=this.projectionFactor(p);if(factor>0&&factor<1){return this.project(p)}var dist0=this.p0.distance(p);var dist1=this.p1.distance(p);if(dist0<dist1)return this.p0;return this.p1};jsts.geom.LineSegment.prototype.closestPoints=function(line){var intPt=this.intersection(line);if(intPt!==null){return[intPt,intPt]}var closestPt=[];var minDistance=Number.MAX_VALUE;var dist;var close00=this.closestPoint(line.p0);minDistance=close00.distance(line.p0);closestPt[0]=close00;closestPt[1]=line.p0;var close01=this.closestPoint(line.p1);dist=close01.distance(line.p1);if(dist<minDistance){minDistance=dist;closestPt[0]=close01;closestPt[1]=line.p1}var close10=line.closestPoint(this.p0);dist=close10.distance(this.p0);if(dist<minDistance){minDistance=dist;closestPt[0]=this.p0;closestPt[1]=close10}var close11=line.closestPoint(this.p1);dist=close11.distance(this.p1);if(dist<minDistance){minDistance=dist;closestPt[0]=this.p1;closestPt[1]=close11}return closestPt};jsts.geom.LineSegment.prototype.intersection=function(line){var li=new jsts.algorithm.RobustLineIntersector;li.computeIntersection(this.p0,this.p1,line.p0,line.p1);if(li.hasIntersection())return li.getIntersection(0);return null};jsts.geom.LineSegment.prototype.setCoordinates=function(ls){if(ls instanceof jsts.geom.Coordinate){this.setCoordinates2.apply(this,arguments);return}this.setCoordinates2(ls.p0,ls.p1)};jsts.geom.LineSegment.prototype.setCoordinates2=function(p0,p1){this.p0.x=p0.x;this.p0.y=p0.y;this.p1.x=p1.x;this.p1.y=p1.y};jsts.geom.LineSegment.prototype.distancePerpendicular=function(p){return jsts.algorithm.CGAlgorithms.distancePointLinePerpendicular(p,this.p0,this.p1)};jsts.geom.LineSegment.prototype.lineIntersection=function(line){try{var intPt=jsts.algorithm.HCoordinate.intersection(this.p0,this.p1,line.p0,line.p1);return intPt}catch(ex){}return null};jsts.geom.LineSegment.prototype.toGeometry=function(geomFactory){return geomFactory.createLineString([this.p0,this.p1])};jsts.geom.LineSegment.prototype.equals=function(o){if(!(o instanceof jsts.geom.LineSegment)){return false}return this.p0.equals(o.p0)&&this.p1.equals(o.p1)};jsts.geom.LineSegment.prototype.compareTo=function(o){var comp0=this.p0.compareTo(o.p0);if(comp0!==0)return comp0;return this.p1.compareTo(o.p1)};jsts.geom.LineSegment.prototype.equalsTopo=function(other){return this.p0.equals(other.p0)&&this.p1.equals(other.p1)||this.p0.equals(other.p1)&&this.p1.equals(other.p0)};jsts.geom.LineSegment.prototype.toString=function(){return"LINESTRING("+this.p0.x+" "+this.p0.y+", "+this.p1.x+" "+this.p1.y+")"};jsts.index.chain.MonotoneChainOverlapAction=function(){this.tempEnv1=new jsts.geom.Envelope;this.tempEnv2=new jsts.geom.Envelope;this.overlapSeg1=new jsts.geom.LineSegment;this.overlapSeg2=new jsts.geom.LineSegment};jsts.index.chain.MonotoneChainOverlapAction.prototype.tempEnv1=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.tempEnv2=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlapSeg1=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlapSeg2=null;jsts.index.chain.MonotoneChainOverlapAction.prototype.overlap=function(mc1,start1,mc2,start2){this.mc1.getLineSegment(start1,this.overlapSeg1);this.mc2.getLineSegment(start2,this.overlapSeg2);this.overlap2(this.overlapSeg1,this.overlapSeg2)};jsts.index.chain.MonotoneChainOverlapAction.prototype.overlap2=function(seg1,seg2){};(function(){var MonotoneChainOverlapAction=jsts.index.chain.MonotoneChainOverlapAction;var SinglePassNoder=jsts.noding.SinglePassNoder;var STRtree=jsts.index.strtree.STRtree;var NodedSegmentString=jsts.noding.NodedSegmentString;var MonotoneChainBuilder=jsts.index.chain.MonotoneChainBuilder;var SegmentOverlapAction=function(si){this.si=si};SegmentOverlapAction.prototype=new MonotoneChainOverlapAction;SegmentOverlapAction.constructor=SegmentOverlapAction;SegmentOverlapAction.prototype.si=null;SegmentOverlapAction.prototype.overlap=function(mc1,start1,mc2,start2){var ss1=mc1.getContext();var ss2=mc2.getContext();this.si.processIntersections(ss1,start1,ss2,start2)};jsts.noding.MCIndexNoder=function(){this.monoChains=[];this.index=new STRtree};jsts.noding.MCIndexNoder.prototype=new SinglePassNoder;jsts.noding.MCIndexNoder.constructor=jsts.noding.MCIndexNoder;jsts.noding.MCIndexNoder.prototype.monoChains=null;jsts.noding.MCIndexNoder.prototype.index=null;jsts.noding.MCIndexNoder.prototype.idCounter=0;jsts.noding.MCIndexNoder.prototype.nodedSegStrings=null;jsts.noding.MCIndexNoder.prototype.nOverlaps=0;jsts.noding.MCIndexNoder.prototype.getMonotoneChains=function(){return this.monoChains};jsts.noding.MCIndexNoder.prototype.getIndex=function(){return this.index};jsts.noding.MCIndexNoder.prototype.getNodedSubstrings=function(){return NodedSegmentString.getNodedSubstrings(this.nodedSegStrings)};jsts.noding.MCIndexNoder.prototype.computeNodes=function(inputSegStrings){this.nodedSegStrings=inputSegStrings;for(var i=inputSegStrings.iterator();i.hasNext();){this.add(i.next())}this.intersectChains()};jsts.noding.MCIndexNoder.prototype.intersectChains=function(){var overlapAction=new SegmentOverlapAction(this.segInt);for(var i=0;i<this.monoChains.length;i++){var queryChain=this.monoChains[i];var overlapChains=this.index.query(queryChain.getEnvelope());for(var j=0;j<overlapChains.length;j++){var testChain=overlapChains[j];if(testChain.getId()>queryChain.getId()){queryChain.computeOverlaps(testChain,overlapAction);this.nOverlaps++}if(this.segInt.isDone())return}}};jsts.noding.MCIndexNoder.prototype.add=function(segStr){var segChains=MonotoneChainBuilder.getChains(segStr.getCoordinates(),segStr);for(var i=0;i<segChains.length;i++){var mc=segChains[i];mc.setId(this.idCounter++);this.index.insert(mc.getEnvelope(),mc);this.monoChains.push(mc)}}})();jsts.simplify.LineSegmentIndex=function(){this.index=new jsts.index.quadtree.Quadtree};jsts.simplify.LineSegmentIndex.prototype.index=null;jsts.simplify.LineSegmentIndex.prototype.add=function(line){if(line instanceof jsts.geom.LineSegment){this.add2(line);return}var segs=line.getSegments();for(var i=0;i<segs.length;i++){var seg=segs[i];this.add2(seg)}};jsts.simplify.LineSegmentIndex.prototype.add2=function(seg){this.index.insert(new jsts.geom.Envelope(seg.p0,seg.p1),seg)};jsts.simplify.LineSegmentIndex.prototype.remove=function(seg){this.index.remove(new jsts.geom.Envelope(seg.p0,seg.p1),seg)};jsts.simplify.LineSegmentIndex.prototype.query=function(querySeg){var env=new jsts.geom.Envelope(querySeg.p0,querySeg.p1);var visitor=new jsts.simplify.LineSegmentIndex.LineSegmentVisitor(querySeg);this.index.query(env,visitor);var itemsFound=visitor.getItems();return itemsFound};jsts.simplify.LineSegmentIndex.LineSegmentVisitor=function(querySeg){this.items=[];this.querySeg=querySeg};jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype=new jsts.index.ItemVisitor;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.querySeg=null;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.items=null;jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.visitItem=function(item){var seg=item;if(jsts.geom.Envelope.intersects(seg.p0,seg.p1,this.querySeg.p0,this.querySeg.p1))this.items.push(item)};jsts.simplify.LineSegmentIndex.LineSegmentVisitor.prototype.getItems=function(){return this.items};jsts.geomgraph.EdgeEndStar=function(){this.edgeMap=new javascript.util.TreeMap;this.edgeList=null;this.ptInAreaLocation=[jsts.geom.Location.NONE,jsts.geom.Location.NONE]};jsts.geomgraph.EdgeEndStar.prototype.edgeMap=null;jsts.geomgraph.EdgeEndStar.prototype.edgeList=null;jsts.geomgraph.EdgeEndStar.prototype.ptInAreaLocation=null;jsts.geomgraph.EdgeEndStar.prototype.insert=function(e){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.EdgeEndStar.prototype.insertEdgeEnd=function(e,obj){this.edgeMap.put(e,obj);this.edgeList=null};jsts.geomgraph.EdgeEndStar.prototype.getCoordinate=function(){var it=this.iterator();if(!it.hasNext())return null;var e=it.next();return e.getCoordinate()};jsts.geomgraph.EdgeEndStar.prototype.getDegree=function(){return this.edgeMap.size()};jsts.geomgraph.EdgeEndStar.prototype.iterator=function(){return this.getEdges().iterator()};jsts.geomgraph.EdgeEndStar.prototype.getEdges=function(){if(this.edgeList===null){this.edgeList=new javascript.util.ArrayList(this.edgeMap.values())}return this.edgeList};jsts.geomgraph.EdgeEndStar.prototype.getNextCW=function(ee){this.getEdges();var i=this.edgeList.indexOf(ee);var iNextCW=i-1;if(i===0)iNextCW=this.edgeList.length-1;return this.edgeList[iNextCW]};jsts.geomgraph.EdgeEndStar.prototype.computeLabelling=function(geomGraph){this.computeEdgeEndLabels(geomGraph[0].getBoundaryNodeRule());this.propagateSideLabels(0);this.propagateSideLabels(1);var hasDimensionalCollapseEdge=[false,false];for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();for(var geomi=0;geomi<2;geomi++){if(label.isLine(geomi)&&label.getLocation(geomi)===jsts.geom.Location.BOUNDARY)hasDimensionalCollapseEdge[geomi]=true}}for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();for(var geomi=0;geomi<2;geomi++){if(label.isAnyNull(geomi)){var loc=jsts.geom.Location.NONE;if(hasDimensionalCollapseEdge[geomi]){loc=jsts.geom.Location.EXTERIOR}else{var p=e.getCoordinate();loc=this.getLocation(geomi,p,geomGraph)}label.setAllLocationsIfNull(geomi,loc)}}}};jsts.geomgraph.EdgeEndStar.prototype.computeEdgeEndLabels=function(boundaryNodeRule){for(var it=this.iterator();it.hasNext();){var ee=it.next();ee.computeLabel(boundaryNodeRule)}};jsts.geomgraph.EdgeEndStar.prototype.getLocation=function(geomIndex,p,geom){if(this.ptInAreaLocation[geomIndex]===jsts.geom.Location.NONE){this.ptInAreaLocation[geomIndex]=jsts.algorithm.locate.SimplePointInAreaLocator.locate(p,geom[geomIndex].getGeometry())}return this.ptInAreaLocation[geomIndex]};jsts.geomgraph.EdgeEndStar.prototype.isAreaLabelsConsistent=function(geomGraph){this.computeEdgeEndLabels(geomGraph.getBoundaryNodeRule());return this.checkAreaLabelsConsistent(0)};jsts.geomgraph.EdgeEndStar.prototype.checkAreaLabelsConsistent=function(geomIndex){var edges=this.getEdges();if(edges.size()<=0)return true;var lastEdgeIndex=edges.size()-1;var startLabel=edges.get(lastEdgeIndex).getLabel();var startLoc=startLabel.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);jsts.util.Assert.isTrue(startLoc!=jsts.geom.Location.NONE,"Found unlabelled area edge");var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();jsts.util.Assert.isTrue(label.isArea(geomIndex),"Found non-area edge");var leftLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);var rightLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(leftLoc===rightLoc){return false}if(rightLoc!==currLoc){return false}currLoc=leftLoc}return true};jsts.geomgraph.EdgeEndStar.prototype.propagateSideLabels=function(geomIndex){var startLoc=jsts.geom.Location.NONE;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(label.isArea(geomIndex)&&label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)!==jsts.geom.Location.NONE)startLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)}if(startLoc===jsts.geom.Location.NONE)return;var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(label.getLocation(geomIndex,jsts.geomgraph.Position.ON)===jsts.geom.Location.NONE)label.setLocation(geomIndex,jsts.geomgraph.Position.ON,currLoc);if(label.isArea(geomIndex)){var leftLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT);var rightLoc=label.getLocation(geomIndex,jsts.geomgraph.Position.RIGHT);if(rightLoc!==jsts.geom.Location.NONE){if(rightLoc!==currLoc)throw new jsts.error.TopologyError("side location conflict",e.getCoordinate());if(leftLoc===jsts.geom.Location.NONE){jsts.util.Assert.shouldNeverReachHere("found single null side (at "+e.getCoordinate()+")")}currLoc=leftLoc}else{jsts.util.Assert.isTrue(label.getLocation(geomIndex,jsts.geomgraph.Position.LEFT)===jsts.geom.Location.NONE,"found single null side");label.setLocation(geomIndex,jsts.geomgraph.Position.RIGHT,currLoc);label.setLocation(geomIndex,jsts.geomgraph.Position.LEFT,currLoc)}}}};jsts.geomgraph.EdgeEndStar.prototype.findIndex=function(eSearch){this.iterator();for(var i=0;i<this.edgeList.size();i++){var e=this.edgeList.get(i);if(e===eSearch)return i}return-1};jsts.operation.relate.EdgeEndBundleStar=function(){jsts.geomgraph.EdgeEndStar.apply(this,arguments)};jsts.operation.relate.EdgeEndBundleStar.prototype=new jsts.geomgraph.EdgeEndStar;jsts.operation.relate.EdgeEndBundleStar.prototype.insert=function(e){var eb=this.edgeMap.get(e);if(eb===null){eb=new jsts.operation.relate.EdgeEndBundle(e);this.insertEdgeEnd(e,eb)}else{eb.insert(e)}};jsts.operation.relate.EdgeEndBundleStar.prototype.updateIM=function(im){for(var it=this.iterator();it.hasNext();){var esb=it.next();esb.updateIM(im)}};jsts.index.ArrayListVisitor=function(){this.items=[]};jsts.index.ArrayListVisitor.prototype.visitItem=function(item){this.items.push(item)};jsts.index.ArrayListVisitor.prototype.getItems=function(){return this.items};jsts.algorithm.distance.DistanceToPoint=function(){};jsts.algorithm.distance.DistanceToPoint.computeDistance=function(geom,pt,ptDist){if(geom instanceof jsts.geom.LineString){jsts.algorithm.distance.DistanceToPoint.computeDistance2(geom,pt,ptDist)}else if(geom instanceof jsts.geom.Polygon){jsts.algorithm.distance.DistanceToPoint.computeDistance4(geom,pt,ptDist)}else if(geom instanceof jsts.geom.GeometryCollection){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);jsts.algorithm.distance.DistanceToPoint.computeDistance(g,pt,ptDist)}}else{ptDist.setMinimum(geom.getCoordinate(),pt)}};jsts.algorithm.distance.DistanceToPoint.computeDistance2=function(line,pt,ptDist){var tempSegment=new jsts.geom.LineSegment;var coords=line.getCoordinates();for(var i=0;i<coords.length-1;i++){tempSegment.setCoordinates(coords[i],coords[i+1]);var closestPt=tempSegment.closestPoint(pt);ptDist.setMinimum(closestPt,pt)}};jsts.algorithm.distance.DistanceToPoint.computeDistance3=function(segment,pt,ptDist){var closestPt=segment.closestPoint(pt);ptDist.setMinimum(closestPt,pt)};jsts.algorithm.distance.DistanceToPoint.computeDistance4=function(poly,pt,ptDist){jsts.algorithm.distance.DistanceToPoint.computeDistance2(poly.getExteriorRing(),pt,ptDist);for(var i=0;i<poly.getNumInteriorRing();i++){jsts.algorithm.distance.DistanceToPoint.computeDistance2(poly.getInteriorRingN(i),pt,ptDist)}};jsts.index.strtree.ItemBoundable=function(bounds,item){this.bounds=bounds;this.item=item};jsts.index.strtree.ItemBoundable.prototype=new jsts.index.strtree.Boundable;jsts.index.strtree.ItemBoundable.constructor=jsts.index.strtree.ItemBoundable;jsts.index.strtree.ItemBoundable.prototype.bounds=null;jsts.index.strtree.ItemBoundable.prototype.item=null;jsts.index.strtree.ItemBoundable.prototype.getBounds=function(){return this.bounds};jsts.index.strtree.ItemBoundable.prototype.getItem=function(){return this.item};(function(){var ArrayList=javascript.util.ArrayList;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.EdgeList=function(){this.edges=new ArrayList;this.ocaMap=new TreeMap};jsts.geomgraph.EdgeList.prototype.edges=null;jsts.geomgraph.EdgeList.prototype.ocaMap=null;jsts.geomgraph.EdgeList.prototype.add=function(e){this.edges.add(e);var oca=new jsts.noding.OrientedCoordinateArray(e.getCoordinates());this.ocaMap.put(oca,e)};jsts.geomgraph.EdgeList.prototype.addAll=function(edgeColl){for(var i=edgeColl.iterator();i.hasNext();){this.add(i.next())}};jsts.geomgraph.EdgeList.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeList.prototype.findEqualEdge=function(e){var oca=new jsts.noding.OrientedCoordinateArray(e.getCoordinates());var matchEdge=this.ocaMap.get(oca);return matchEdge};jsts.geomgraph.EdgeList.prototype.getEdges=function(){return this.edges};jsts.geomgraph.EdgeList.prototype.iterator=function(){return this.edges.iterator()};jsts.geomgraph.EdgeList.prototype.get=function(i){return this.edges.get(i)};jsts.geomgraph.EdgeList.prototype.findEdgeIndex=function(e){for(var i=0;i<this.edges.size();i++){if(this.edges.get(i).equals(e))return i}return-1}})();jsts.operation.IsSimpleOp=function(geom){this.geom=geom};jsts.operation.IsSimpleOp.prototype.geom=null;jsts.operation.IsSimpleOp.prototype.isClosedEndpointsInInterior=true;jsts.operation.IsSimpleOp.prototype.nonSimpleLocation=null;jsts.operation.IsSimpleOp.prototype.IsSimpleOp=function(geom){this.geom=geom};jsts.operation.IsSimpleOp.prototype.isSimple=function(){this.nonSimpleLocation=null;if(this.geom instanceof jsts.geom.LineString){return this.isSimpleLinearGeometry(this.geom)}if(this.geom instanceof jsts.geom.MultiLineString){return this.isSimpleLinearGeometry(this.geom)}if(this.geom instanceof jsts.geom.MultiPoint){return this.isSimpleMultiPoint(this.geom)}return true};jsts.operation.IsSimpleOp.prototype.isSimpleMultiPoint=function(mp){if(mp.isEmpty())return true;var points=[];for(var i=0;i<mp.getNumGeometries();i++){var pt=mp.getGeometryN(i);var p=pt.getCoordinate();for(var j=0;j<points.length;j++){var point=points[j];if(p.equals2D(point)){this.nonSimpleLocation=p;return false}}points.push(p)}return true};jsts.operation.IsSimpleOp.prototype.isSimpleLinearGeometry=function(geom){if(geom.isEmpty())return true;var graph=new jsts.geomgraph.GeometryGraph(0,geom);var li=new jsts.algorithm.RobustLineIntersector;var si=graph.computeSelfNodes(li,true);if(!si.hasIntersection())return true;if(si.hasProperIntersection()){this.nonSimpleLocation=si.getProperIntersectionPoint();return false}if(this.hasNonEndpointIntersection(graph))return false;if(this.isClosedEndpointsInInterior){if(this.hasClosedEndpointIntersection(graph))return false}return true};jsts.operation.IsSimpleOp.prototype.hasNonEndpointIntersection=function(graph){for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();var maxSegmentIndex=e.getMaximumSegmentIndex();for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();if(!ei.isEndPoint(maxSegmentIndex)){this.nonSimpleLocation=ei.getCoordinate();return true}}}return false};jsts.operation.IsSimpleOp.prototype.hasClosedEndpointIntersection=function(graph){var endPoints=new javascript.util.TreeMap;for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();var maxSegmentIndex=e.getMaximumSegmentIndex();var isClosed=e.isClosed();var p0=e.getCoordinate(0);this.addEndpoint(endPoints,p0,isClosed);var p1=e.getCoordinate(e.getNumPoints()-1);this.addEndpoint(endPoints,p1,isClosed)}for(var i=endPoints.values().iterator();i.hasNext();){var eiInfo=i.next();if(eiInfo.isClosed&&eiInfo.degree!=2){this.nonSimpleLocation=eiInfo.getCoordinate();return true}}return false};jsts.operation.IsSimpleOp.EndpointInfo=function(pt){this.pt=pt;this.isClosed=false;this.degree=0};jsts.operation.IsSimpleOp.EndpointInfo.prototype.pt=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.isClosed=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.degree=null;jsts.operation.IsSimpleOp.EndpointInfo.prototype.getCoordinate=function(){return this.pt};jsts.operation.IsSimpleOp.EndpointInfo.prototype.addEndpoint=function(isClosed){this.degree++;this.isClosed=this.isClosed||isClosed};jsts.operation.IsSimpleOp.prototype.addEndpoint=function(endPoints,p,isClosed){var eiInfo=endPoints.get(p);if(eiInfo===null){eiInfo=new jsts.operation.IsSimpleOp.EndpointInfo(p);endPoints.put(p,eiInfo)}eiInfo.addEndpoint(isClosed)};(function(){var LineStringSnapper=function(){this.snapTolerance=0;this.seg=new jsts.geom.LineSegment;this.allowSnappingToSourceVertices=false;this.isClosed=false;this.srcPts=[];if(arguments[0]instanceof jsts.geom.LineString){this.initFromLine.apply(this,arguments)}else{this.initFromPoints.apply(this,arguments)}};LineStringSnapper.prototype.initFromLine=function(srcLine,snapTolerance){this.initFromPoints(srcLine.getCoordinates(),snapTolerance)};LineStringSnapper.prototype.initFromPoints=function(srcPts,snapTolerance){this.srcPts=srcPts;this.isClosed=this.calcIsClosed(srcPts);this.snapTolerance=snapTolerance};LineStringSnapper.prototype.setAllowSnappingToSourceVertices=function(allowSnappingToSourceVertices){this.allowSnappingToSourceVertices=allowSnappingToSourceVertices};LineStringSnapper.prototype.calcIsClosed=function(pts){if(pts.length<=1){return false}return pts[0].equals(pts[pts.length-1])};LineStringSnapper.prototype.snapTo=function(snapPts){var coordList=new jsts.geom.CoordinateList(this.srcPts);this.snapVertices(coordList,snapPts);this.snapSegments(coordList,snapPts);return coordList.toCoordinateArray()};LineStringSnapper.prototype.snapVertices=function(srcCoords,snapPts){var end=this.isClosed?srcCoords.size()-1:srcCoords.size(),i=0,srcPt,snapVert;for(i;i<end;i++){srcPt=srcCoords.get(i);snapVert=this.findSnapForVertex(srcPt,snapPts);if(snapVert!==null){srcCoords.set(i,new jsts.geom.Coordinate(snapVert));if(i===0&&this.isClosed)srcCoords.set(srcCoords.size()-1,new jsts.geom.Coordinate(snapVert))}}};LineStringSnapper.prototype.findSnapForVertex=function(pt,snapPts){var i=0,il=snapPts.length;for(i=0;i<il;i++){if(pt.equals(snapPts[i])){return null}if(pt.distance(snapPts[i])<this.snapTolerance){return snapPts[i]}}return null};LineStringSnapper.prototype.snapSegments=function(srcCoords,snapPts){if(snapPts.length===0){return}var distinctPtCount=snapPts.length,i,snapPt,index;if(snapPts.length>1&&snapPts[0].equals2D(snapPts[snapPts.length-1])){distinctPtCount=snapPts.length-1}i=0;for(i;i<distinctPtCount;i++){snapPt=snapPts[i];index=this.findSegmentIndexToSnap(snapPt,srcCoords);if(index>=0){srcCoords.add(index+1,new jsts.geom.Coordinate(snapPt),false)}}};LineStringSnapper.prototype.findSegmentIndexToSnap=function(snapPt,srcCoords){var minDist=Number.MAX_VALUE,snapIndex=-1,i=0,dist;for(i;i<srcCoords.size()-1;i++){this.seg.p0=srcCoords.get(i);this.seg.p1=srcCoords.get(i+1);if(this.seg.p0.equals(snapPt)||this.seg.p1.equals(snapPt)){if(this.allowSnappingToSourceVertices){continue}else{return-1}}dist=this.seg.distance(snapPt);if(dist<this.snapTolerance&&dist<minDist){minDist=dist;snapIndex=i}}return snapIndex};jsts.operation.overlay.snap.LineStringSnapper=LineStringSnapper})();(function(){var ArrayList=javascript.util.ArrayList;var GeometryComponentFilter=jsts.geom.GeometryComponentFilter;var LineString=jsts.geom.LineString;var EdgeRing=jsts.operation.polygonize.EdgeRing;var PolygonizeGraph=jsts.operation.polygonize.PolygonizeGraph;var Polygonizer=function(){var that=this;var LineStringAdder=function(){};LineStringAdder.prototype=new GeometryComponentFilter;LineStringAdder.prototype.filter=function(g){if(g instanceof LineString)that.add(g)};this.lineStringAdder=new LineStringAdder;this.dangles=new ArrayList;this.cutEdges=new ArrayList;this.invalidRingLines=new ArrayList};Polygonizer.prototype.lineStringAdder=null;Polygonizer.prototype.graph=null;Polygonizer.prototype.dangles=null;Polygonizer.prototype.cutEdges=null;Polygonizer.prototype.invalidRingLines=null;Polygonizer.prototype.holeList=null;Polygonizer.prototype.shellList=null;Polygonizer.prototype.polyList=null;Polygonizer.prototype.add=function(geomList){if(geomList instanceof jsts.geom.LineString){return this.add3(geomList)}else if(geomList instanceof jsts.geom.Geometry){return this.add2(geomList)}for(var i=geomList.iterator();i.hasNext();){var geometry=i.next();this.add2(geometry)}};Polygonizer.prototype.add2=function(g){g.apply(this.lineStringAdder)};Polygonizer.prototype.add3=function(line){if(this.graph==null)this.graph=new PolygonizeGraph(line.getFactory());this.graph.addEdge(line)};Polygonizer.prototype.getPolygons=function(){this.polygonize();return this.polyList};Polygonizer.prototype.getDangles=function(){this.polygonize();return this.dangles};Polygonizer.prototype.getCutEdges=function(){this.polygonize();return this.cutEdges};Polygonizer.prototype.getInvalidRingLines=function(){this.polygonize();return this.invalidRingLines};Polygonizer.prototype.polygonize=function(){if(this.polyList!=null)return;this.polyList=new ArrayList;if(this.graph==null)return;this.dangles=this.graph.deleteDangles();this.cutEdges=this.graph.deleteCutEdges();var edgeRingList=this.graph.getEdgeRings();var validEdgeRingList=new ArrayList;this.invalidRingLines=new ArrayList;this.findValidRings(edgeRingList,validEdgeRingList,this.invalidRingLines);this.findShellsAndHoles(validEdgeRingList);Polygonizer.assignHolesToShells(this.holeList,this.shellList);this.polyList=new ArrayList;for(var i=this.shellList.iterator();i.hasNext();){var er=i.next();this.polyList.add(er.getPolygon())}};Polygonizer.prototype.findValidRings=function(edgeRingList,validEdgeRingList,invalidRingList){for(var i=edgeRingList.iterator();i.hasNext();){var er=i.next();if(er.isValid())validEdgeRingList.add(er);else invalidRingList.add(er.getLineString())}};Polygonizer.prototype.findShellsAndHoles=function(edgeRingList){this.holeList=new ArrayList;this.shellList=new ArrayList;for(var i=edgeRingList.iterator();i.hasNext();){var er=i.next();if(er.isHole())this.holeList.add(er);else this.shellList.add(er)}};Polygonizer.assignHolesToShells=function(holeList,shellList){for(var i=holeList.iterator();i.hasNext();){var holeER=i.next();Polygonizer.assignHoleToShell(holeER,shellList)}};Polygonizer.assignHoleToShell=function(holeER,shellList){var shell=EdgeRing.findEdgeRingContaining(holeER,shellList);if(shell!=null)shell.addHole(holeER.getRing())};jsts.operation.polygonize.Polygonizer=Polygonizer})();(function(){var ArrayList=javascript.util.ArrayList;var GeometryTransformer=function(){};GeometryTransformer.prototype.inputGeom=null;GeometryTransformer.prototype.factory=null;GeometryTransformer.prototype.pruneEmptyGeometry=true;GeometryTransformer.prototype.preserveGeometryCollectionType=true;GeometryTransformer.prototype.preserveCollections=false;GeometryTransformer.prototype.reserveType=false;GeometryTransformer.prototype.getInputGeometry=function(){return this.inputGeom};GeometryTransformer.prototype.transform=function(inputGeom){this.inputGeom=inputGeom;this.factory=inputGeom.getFactory();if(inputGeom instanceof jsts.geom.Point)return this.transformPoint(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiPoint)return this.transformMultiPoint(inputGeom,null);if(inputGeom instanceof jsts.geom.LinearRing)return this.transformLinearRing(inputGeom,null);
if(inputGeom instanceof jsts.geom.LineString)return this.transformLineString(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiLineString)return this.transformMultiLineString(inputGeom,null);if(inputGeom instanceof jsts.geom.Polygon)return this.transformPolygon(inputGeom,null);if(inputGeom instanceof jsts.geom.MultiPolygon)return this.transformMultiPolygon(inputGeom,null);if(inputGeom instanceof jsts.geom.GeometryCollection)return this.transformGeometryCollection(inputGeom,null);throw new jsts.error.IllegalArgumentException("Unknown Geometry subtype: "+inputGeom.getClass().getName())};GeometryTransformer.prototype.createCoordinateSequence=function(coords){return this.factory.getCoordinateSequenceFactory().create(coords)};GeometryTransformer.prototype.copy=function(seq){return seq.clone()};GeometryTransformer.prototype.transformCoordinates=function(coords,parent){return this.copy(coords)};GeometryTransformer.prototype.transformPoint=function(geom,parent){return this.factory.createPoint(this.transformCoordinates(geom.getCoordinateSequence(),geom))};GeometryTransformer.prototype.transformMultiPoint=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformPoint(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformLinearRing=function(geom,parent){var seq=this.transformCoordinates(geom.getCoordinateSequence(),geom);var seqSize=seq.length;if(seqSize>0&&seqSize<4&&!this.preserveType)return this.factory.createLineString(seq);return this.factory.createLinearRing(seq)};GeometryTransformer.prototype.transformLineString=function(geom,parent){return this.factory.createLineString(this.transformCoordinates(geom.getCoordinateSequence(),geom))};GeometryTransformer.prototype.transformMultiLineString=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformLineString(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformPolygon=function(geom,parent){var isAllValidLinearRings=true;var shell=this.transformLinearRing(geom.getExteriorRing(),geom);if(shell==null||!(shell instanceof jsts.geom.LinearRing)||shell.isEmpty())isAllValidLinearRings=false;var holes=new ArrayList;for(var i=0;i<geom.getNumInteriorRing();i++){var hole=this.transformLinearRing(geom.getInteriorRingN(i),geom);if(hole==null||hole.isEmpty()){continue}if(!(hole instanceof jsts.geom.LinearRing))isAllValidLinearRings=false;holes.add(hole)}if(isAllValidLinearRings)return this.factory.createPolygon(shell,holes.toArray());else{var components=new ArrayList;if(shell!=null)components.add(shell);components.addAll(holes);return this.factory.buildGeometry(components)}};GeometryTransformer.prototype.transformMultiPolygon=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transformPolygon(geom.getGeometryN(i),geom);if(transformGeom==null)continue;if(transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}return this.factory.buildGeometry(transGeomList)};GeometryTransformer.prototype.transformGeometryCollection=function(geom,parent){var transGeomList=new ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var transformGeom=this.transform(geom.getGeometryN(i));if(transformGeom==null)continue;if(this.pruneEmptyGeometry&&transformGeom.isEmpty())continue;transGeomList.add(transformGeom)}if(this.preserveGeometryCollectionType)return this.factory.createGeometryCollection(GeometryFactory.toGeometryArray(transGeomList));return this.factory.buildGeometry(transGeomList)};jsts.geom.util.GeometryTransformer=GeometryTransformer})();(function(){var LineStringSnapper=jsts.operation.overlay.snap.LineStringSnapper;var PrecisionModel=jsts.geom.PrecisionModel;var TreeSet=javascript.util.TreeSet;var SnapTransformer=function(snapTolerance,snapPts,isSelfSnap){this.snapTolerance=snapTolerance;this.snapPts=snapPts;this.isSelfSnap=isSelfSnap||false};SnapTransformer.prototype=new jsts.geom.util.GeometryTransformer;SnapTransformer.prototype.snapTolerance=null;SnapTransformer.prototype.snapPts=null;SnapTransformer.prototype.isSelfSnap=false;SnapTransformer.prototype.transformCoordinates=function(coords,parent){var srcPts=coords;var newPts=this.snapLine(srcPts,this.snapPts);return newPts};SnapTransformer.prototype.snapLine=function(srcPts,snapPts){var snapper=new LineStringSnapper(srcPts,this.snapTolerance);snapper.setAllowSnappingToSourceVertices(this.isSelfSnap);return snapper.snapTo(snapPts)};var GeometrySnapper=function(srcGeom){this.srcGeom=srcGeom};GeometrySnapper.SNAP_PRECISION_FACTOR=1e-9;GeometrySnapper.computeOverlaySnapTolerance=function(g){if(arguments.length===2){return GeometrySnapper.computeOverlaySnapTolerance2.apply(this,arguments)}var snapTolerance=this.computeSizeBasedSnapTolerance(g);var pm=g.getPrecisionModel();if(pm.getType()==PrecisionModel.FIXED){var fixedSnapTol=1/pm.getScale()*2/1.415;if(fixedSnapTol>snapTolerance)snapTolerance=fixedSnapTol}return snapTolerance};GeometrySnapper.computeSizeBasedSnapTolerance=function(g){var env=g.getEnvelopeInternal();var minDimension=Math.min(env.getHeight(),env.getWidth());var snapTol=minDimension*GeometrySnapper.SNAP_PRECISION_FACTOR;return snapTol};GeometrySnapper.computeOverlaySnapTolerance2=function(g0,g1){return Math.min(this.computeOverlaySnapTolerance(g0),this.computeOverlaySnapTolerance(g1))};GeometrySnapper.snap=function(g0,g1,snapTolerance){var snapGeom=[];var snapper0=new GeometrySnapper(g0);snapGeom[0]=snapper0.snapTo(g1,snapTolerance);var snapper1=new GeometrySnapper(g1);snapGeom[1]=snapper1.snapTo(snapGeom[0],snapTolerance);return snapGeom};GeometrySnapper.snapToSelf=function(g0,snapTolerance,cleanResult){var snapper0=new GeometrySnapper(g0);return snapper0.snapToSelf(snapTolerance,cleanResult)};GeometrySnapper.prototype.srcGeom=null;GeometrySnapper.prototype.snapTo=function(snapGeom,snapTolerance){var snapPts=this.extractTargetCoordinates(snapGeom);var snapTrans=new SnapTransformer(snapTolerance,snapPts);return snapTrans.transform(this.srcGeom)};GeometrySnapper.prototype.snapToSelf=function(snapTolerance,cleanResult){var snapPts=this.extractTargetCoordinates(srcGeom);var snapTrans=new SnapTransformer(snapTolerance,snapPts,true);var snappedGeom=snapTrans.transform(srcGeom);var result=snappedGeom;if(cleanResult&&result instanceof Polygonal){result=snappedGeom.buffer(0)}return result};GeometrySnapper.prototype.extractTargetCoordinates=function(g){var ptSet=new TreeSet;var pts=g.getCoordinates();for(var i=0;i<pts.length;i++){ptSet.add(pts[i])}return ptSet.toArray()};GeometrySnapper.prototype.computeSnapTolerance=function(ringPts){var minSegLen=this.computeMinimumSegmentLength(ringPts);var snapTol=minSegLen/10;return snapTol};GeometrySnapper.prototype.computeMinimumSegmentLength=function(pts){var minSegLen=Number.MAX_VALUE;for(var i=0;i<pts.length-1;i++){var segLen=pts[i].distance(pts[i+1]);if(segLen<minSegLen)minSegLen=segLen}return minSegLen};jsts.operation.overlay.snap.GeometrySnapper=GeometrySnapper})();jsts.algorithm.PointLocator=function(boundaryRule){this.boundaryRule=boundaryRule?boundaryRule:jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE};jsts.algorithm.PointLocator.prototype.boundaryRule=null;jsts.algorithm.PointLocator.prototype.isIn=null;jsts.algorithm.PointLocator.prototype.numBoundaries=null;jsts.algorithm.PointLocator.prototype.intersects=function(p,geom){return this.locate(p,geom)!==jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locate=function(p,geom){if(geom.isEmpty())return jsts.geom.Location.EXTERIOR;if(geom instanceof jsts.geom.Point){return this.locate2(p,geom)}else if(geom instanceof jsts.geom.LineString){return this.locate3(p,geom)}else if(geom instanceof jsts.geom.Polygon){return this.locate4(p,geom)}this.isIn=false;this.numBoundaries=0;this.computeLocation(p,geom);if(this.boundaryRule.isInBoundary(this.numBoundaries))return jsts.geom.Location.BOUNDARY;if(this.numBoundaries>0||this.isIn)return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.computeLocation=function(p,geom){if(geom instanceof jsts.geom.Point||geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.Polygon){this.updateLocationInfo(this.locate(p,geom))}else if(geom instanceof jsts.geom.MultiLineString){var ml=geom;for(var i=0;i<ml.getNumGeometries();i++){var l=ml.getGeometryN(i);this.updateLocationInfo(this.locate(p,l))}}else if(geom instanceof jsts.geom.MultiPolygon){var mpoly=geom;for(var i=0;i<mpoly.getNumGeometries();i++){var poly=mpoly.getGeometryN(i);this.updateLocationInfo(this.locate(p,poly))}}else if(geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.GeometryCollection){for(var i=0;i<geom.getNumGeometries();i++){var part=geom.getGeometryN(i);if(part!==geom){this.computeLocation(p,part)}}}};jsts.algorithm.PointLocator.prototype.updateLocationInfo=function(loc){if(loc===jsts.geom.Location.INTERIOR)this.isIn=true;if(loc===jsts.geom.Location.BOUNDARY)this.numBoundaries++};jsts.algorithm.PointLocator.prototype.locate2=function(p,pt){var ptCoord=pt.getCoordinate();if(ptCoord.equals2D(p))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locate3=function(p,l){if(!l.getEnvelopeInternal().intersects(p))return jsts.geom.Location.EXTERIOR;var pt=l.getCoordinates();if(!l.isClosed()){if(p.equals(pt[0])||p.equals(pt[pt.length-1])){return jsts.geom.Location.BOUNDARY}}if(jsts.algorithm.CGAlgorithms.isOnLine(p,pt))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.PointLocator.prototype.locateInPolygonRing=function(p,ring){if(!ring.getEnvelopeInternal().intersects(p))return jsts.geom.Location.EXTERIOR;return jsts.algorithm.CGAlgorithms.locatePointInRing(p,ring.getCoordinates())};jsts.algorithm.PointLocator.prototype.locate4=function(p,poly){if(poly.isEmpty())return jsts.geom.Location.EXTERIOR;var shell=poly.getExteriorRing();var shellLoc=this.locateInPolygonRing(p,shell);if(shellLoc===jsts.geom.Location.EXTERIOR)return jsts.geom.Location.EXTERIOR;if(shellLoc===jsts.geom.Location.BOUNDARY)return jsts.geom.Location.BOUNDARY;for(var i=0;i<poly.getNumInteriorRing();i++){var hole=poly.getInteriorRingN(i);var holeLoc=this.locateInPolygonRing(p,hole);if(holeLoc===jsts.geom.Location.INTERIOR)return jsts.geom.Location.EXTERIOR;if(holeLoc===jsts.geom.Location.BOUNDARY)return jsts.geom.Location.BOUNDARY}return jsts.geom.Location.INTERIOR};(function(){var Location=jsts.geom.Location;var ArrayList=javascript.util.ArrayList;var TreeMap=javascript.util.TreeMap;jsts.geomgraph.NodeMap=function(nodeFactory){this.nodeMap=new TreeMap;this.nodeFact=nodeFactory};jsts.geomgraph.NodeMap.prototype.nodeMap=null;jsts.geomgraph.NodeMap.prototype.nodeFact=null;jsts.geomgraph.NodeMap.prototype.addNode=function(arg){var node,coord;if(arg instanceof jsts.geom.Coordinate){coord=arg;node=this.nodeMap.get(coord);if(node===null){node=this.nodeFact.createNode(coord);this.nodeMap.put(coord,node)}return node}else if(arg instanceof jsts.geomgraph.Node){var n=arg;coord=n.getCoordinate();node=this.nodeMap.get(coord);if(node===null){this.nodeMap.put(coord,n);return n}node.mergeLabel(n);return node}};jsts.geomgraph.NodeMap.prototype.add=function(e){var p=e.getCoordinate();var n=this.addNode(p);n.add(e)};jsts.geomgraph.NodeMap.prototype.find=function(coord){return this.nodeMap.get(coord)};jsts.geomgraph.NodeMap.prototype.values=function(){return this.nodeMap.values()};jsts.geomgraph.NodeMap.prototype.iterator=function(){return this.values().iterator()};jsts.geomgraph.NodeMap.prototype.getBoundaryNodes=function(geomIndex){var bdyNodes=new ArrayList;for(var i=this.iterator();i.hasNext();){var node=i.next();if(node.getLabel().getLocation(geomIndex)===Location.BOUNDARY){bdyNodes.add(node)}}return bdyNodes}})();(function(){var ArrayList=javascript.util.ArrayList;jsts.geomgraph.PlanarGraph=function(nodeFactory){this.edges=new ArrayList;this.edgeEndList=new ArrayList;this.nodes=new jsts.geomgraph.NodeMap(nodeFactory||new jsts.geomgraph.NodeFactory)};jsts.geomgraph.PlanarGraph.prototype.edges=null;jsts.geomgraph.PlanarGraph.prototype.nodes=null;jsts.geomgraph.PlanarGraph.prototype.edgeEndList=null;jsts.geomgraph.PlanarGraph.linkResultDirectedEdges=function(nodes){for(var nodeit=nodes.iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().linkResultDirectedEdges()}};jsts.geomgraph.PlanarGraph.prototype.getEdgeIterator=function(){return this.edges.iterator()};jsts.geomgraph.PlanarGraph.prototype.getEdgeEnds=function(){return this.edgeEndList};jsts.geomgraph.PlanarGraph.prototype.isBoundaryNode=function(geomIndex,coord){var node=this.nodes.find(coord);if(node===null)return false;var label=node.getLabel();if(label!==null&&label.getLocation(geomIndex)===jsts.geom.Location.BOUNDARY)return true;return false};jsts.geomgraph.PlanarGraph.prototype.insertEdge=function(e){this.edges.add(e)};jsts.geomgraph.PlanarGraph.prototype.add=function(e){this.nodes.add(e);this.edgeEndList.add(e)};jsts.geomgraph.PlanarGraph.prototype.getNodeIterator=function(){return this.nodes.iterator()};jsts.geomgraph.PlanarGraph.prototype.getNodes=function(){return this.nodes.values()};jsts.geomgraph.PlanarGraph.prototype.addNode=function(node){return this.nodes.addNode(node)};jsts.geomgraph.PlanarGraph.prototype.addEdges=function(edgesToAdd){for(var it=edgesToAdd.iterator();it.hasNext();){var e=it.next();this.edges.add(e);var de1=new jsts.geomgraph.DirectedEdge(e,true);var de2=new jsts.geomgraph.DirectedEdge(e,false);de1.setSym(de2);de2.setSym(de1);this.add(de1);this.add(de2)}};jsts.geomgraph.PlanarGraph.prototype.linkResultDirectedEdges=function(){for(var nodeit=this.nodes.iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().linkResultDirectedEdges()}};jsts.geomgraph.PlanarGraph.prototype.findEdgeInSameDirection=function(p0,p1){var i=0,il=this.edges.size(),e,eCoord;for(i;i<il;i++){e=this.edges.get(i);eCoord=e.getCoordinates();if(this.matchInSameDirection(p0,p1,eCoord[0],eCoord[1])){return e}if(this.matchInSameDirection(p0,p1,eCoord[eCoord.length-1],eCoord[eCoord.length-2])){return e}}return null};jsts.geomgraph.PlanarGraph.prototype.matchInSameDirection=function(p0,p1,ep0,ep1){if(!p0.equals(ep0)){return false}if(jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,ep1)===jsts.algorithm.CGAlgorithms.COLLINEAR&&jsts.geomgraph.Quadrant.quadrant(p0,p1)===jsts.geomgraph.Quadrant.quadrant(ep0,ep1)){return true}return false};jsts.geomgraph.PlanarGraph.prototype.findEdgeEnd=function(e){for(var i=this.getEdgeEnds().iterator();i.hasNext();){var ee=i.next();if(ee.getEdge()===e){return ee}}return null}})();jsts.noding.SegmentIntersector=function(){};jsts.noding.SegmentIntersector.prototype.processIntersections=jsts.abstractFunc;jsts.noding.SegmentIntersector.prototype.isDone=jsts.abstractFunc;(function(){var SegmentIntersector=jsts.noding.SegmentIntersector;var ArrayList=javascript.util.ArrayList;jsts.noding.InteriorIntersectionFinder=function(li){this.li=li;this.intersections=new ArrayList;this.interiorIntersection=null};jsts.noding.InteriorIntersectionFinder.prototype=new SegmentIntersector;jsts.noding.InteriorIntersectionFinder.constructor=jsts.noding.InteriorIntersectionFinder;jsts.noding.InteriorIntersectionFinder.prototype.findAllIntersections=false;jsts.noding.InteriorIntersectionFinder.prototype.isCheckEndSegmentsOnly=false;jsts.noding.InteriorIntersectionFinder.prototype.li=null;jsts.noding.InteriorIntersectionFinder.prototype.interiorIntersection=null;jsts.noding.InteriorIntersectionFinder.prototype.intSegments=null;jsts.noding.InteriorIntersectionFinder.prototype.intersections=null;jsts.noding.InteriorIntersectionFinder.prototype.setFindAllIntersections=function(findAllIntersections){this.findAllIntersections=findAllIntersections};jsts.noding.InteriorIntersectionFinder.prototype.getIntersections=function(){return intersections};jsts.noding.InteriorIntersectionFinder.prototype.setCheckEndSegmentsOnly=function(isCheckEndSegmentsOnly){this.isCheckEndSegmentsOnly=isCheckEndSegmentsOnly};jsts.noding.InteriorIntersectionFinder.prototype.hasIntersection=function(){return this.interiorIntersection!=null};jsts.noding.InteriorIntersectionFinder.prototype.getInteriorIntersection=function(){return this.interiorIntersection};jsts.noding.InteriorIntersectionFinder.prototype.getIntersectionSegments=function(){return this.intSegments};jsts.noding.InteriorIntersectionFinder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(this.hasIntersection())return;if(e0==e1&&segIndex0==segIndex1)return;if(this.isCheckEndSegmentsOnly){var isEndSegPresent=this.isEndSegment(e0,segIndex0)||isEndSegment(e1,segIndex1);if(!isEndSegPresent)return}var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.li.isInteriorIntersection()){this.intSegments=[];this.intSegments[0]=p00;this.intSegments[1]=p01;this.intSegments[2]=p10;this.intSegments[3]=p11;this.interiorIntersection=this.li.getIntersection(0);this.intersections.add(this.interiorIntersection)}}};jsts.noding.InteriorIntersectionFinder.prototype.isEndSegment=function(segStr,index){if(index==0)return true;if(index>=segStr.size()-2)return true;return false};jsts.noding.InteriorIntersectionFinder.prototype.isDone=function(){if(this.findAllIntersections)return false;return this.interiorIntersection!=null}})();(function(){var RobustLineIntersector=jsts.algorithm.RobustLineIntersector;var InteriorIntersectionFinder=jsts.noding.InteriorIntersectionFinder;var MCIndexNoder=jsts.noding.MCIndexNoder;jsts.noding.FastNodingValidator=function(segStrings){this.li=new RobustLineIntersector;this.segStrings=segStrings};jsts.noding.FastNodingValidator.prototype.li=null;jsts.noding.FastNodingValidator.prototype.segStrings=null;jsts.noding.FastNodingValidator.prototype.findAllIntersections=false;jsts.noding.FastNodingValidator.prototype.segInt=null;jsts.noding.FastNodingValidator.prototype._isValid=true;jsts.noding.FastNodingValidator.prototype.setFindAllIntersections=function(findAllIntersections){this.findAllIntersections=findAllIntersections};jsts.noding.FastNodingValidator.prototype.getIntersections=function(){return segInt.getIntersections()};jsts.noding.FastNodingValidator.prototype.isValid=function(){this.execute();return this._isValid};jsts.noding.FastNodingValidator.prototype.getErrorMessage=function(){if(this._isValid)return"no intersections found";var intSegs=this.segInt.getIntersectionSegments();return"found non-noded intersection between "+jsts.io.WKTWriter.toLineString(intSegs[0],intSegs[1])+" and "+jsts.io.WKTWriter.toLineString(intSegs[2],intSegs[3])};jsts.noding.FastNodingValidator.prototype.checkValid=function(){this.execute();if(!this._isValid)throw new jsts.error.TopologyError(this.getErrorMessage(),this.segInt.getInteriorIntersection())};jsts.noding.FastNodingValidator.prototype.execute=function(){if(this.segInt!=null)return;this.checkInteriorIntersections()};jsts.noding.FastNodingValidator.prototype.checkInteriorIntersections=function(){this._isValid=true;this.segInt=new InteriorIntersectionFinder(this.li);this.segInt.setFindAllIntersections(this.findAllIntersections);var noder=new MCIndexNoder;noder.setSegmentIntersector(this.segInt);noder.computeNodes(this.segStrings);if(this.segInt.hasIntersection()){this._isValid=false;return}}})();(function(){jsts.noding.BasicSegmentString=function(pts,data){this.pts=pts;this.data=data};jsts.noding.BasicSegmentString.prototype=new jsts.noding.SegmentString;jsts.noding.BasicSegmentString.prototype.pts=null;jsts.noding.BasicSegmentString.prototype.data=null;jsts.noding.BasicSegmentString.prototype.getData=function(){return this.data};jsts.noding.BasicSegmentString.prototype.setData=function(data){this.data=data};jsts.noding.BasicSegmentString.prototype.size=function(){return this.pts.length};jsts.noding.BasicSegmentString.prototype.getCoordinate=function(i){return this.pts[i]};jsts.noding.BasicSegmentString.prototype.getCoordinates=function(){return this.pts};jsts.noding.BasicSegmentString.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.noding.BasicSegmentString.prototype.getSegmentOctant=function(index){if(index==this.pts.length-1)return-1;return jsts.noding.Octant.octant(this.getCoordinate(index),this.getCoordinate(index+1))}})();(function(){var FastNodingValidator=jsts.noding.FastNodingValidator;var BasicSegmentString=jsts.noding.BasicSegmentString;var ArrayList=javascript.util.ArrayList;jsts.geomgraph.EdgeNodingValidator=function(edges){this.nv=new FastNodingValidator(jsts.geomgraph.EdgeNodingValidator.toSegmentStrings(edges))};jsts.geomgraph.EdgeNodingValidator.checkValid=function(edges){var validator=new jsts.geomgraph.EdgeNodingValidator(edges);validator.checkValid()};jsts.geomgraph.EdgeNodingValidator.toSegmentStrings=function(edges){var segStrings=new ArrayList;for(var i=edges.iterator();i.hasNext();){var e=i.next();segStrings.add(new BasicSegmentString(e.getCoordinates(),e))}return segStrings};jsts.geomgraph.EdgeNodingValidator.prototype.nv=null;jsts.geomgraph.EdgeNodingValidator.prototype.checkValid=function(){this.nv.checkValid()}})();jsts.operation.GeometryGraphOperation=function(g0,g1,boundaryNodeRule){this.li=new jsts.algorithm.RobustLineIntersector;this.arg=[];if(g0===undefined){return}if(g1===undefined){this.setComputationPrecision(g0.getPrecisionModel());this.arg[0]=new jsts.geomgraph.GeometryGraph(0,g0);return}boundaryNodeRule=boundaryNodeRule||jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE;if(g0.getPrecisionModel().compareTo(g1.getPrecisionModel())>=0)this.setComputationPrecision(g0.getPrecisionModel());else this.setComputationPrecision(g1.getPrecisionModel());this.arg[0]=new jsts.geomgraph.GeometryGraph(0,g0,boundaryNodeRule);this.arg[1]=new jsts.geomgraph.GeometryGraph(1,g1,boundaryNodeRule)};jsts.operation.GeometryGraphOperation.prototype.li=null;jsts.operation.GeometryGraphOperation.prototype.resultPrecisionModel=null;jsts.operation.GeometryGraphOperation.prototype.arg=null;jsts.operation.GeometryGraphOperation.prototype.getArgGeometry=function(i){return arg[i].getGeometry()};jsts.operation.GeometryGraphOperation.prototype.setComputationPrecision=function(pm){this.resultPrecisionModel=pm;this.li.setPrecisionModel(this.resultPrecisionModel)};jsts.operation.overlay.OverlayNodeFactory=function(){};jsts.operation.overlay.OverlayNodeFactory.prototype=new jsts.geomgraph.NodeFactory;jsts.operation.overlay.OverlayNodeFactory.constructor=jsts.operation.overlay.OverlayNodeFactory;jsts.operation.overlay.OverlayNodeFactory.prototype.createNode=function(coord){return new jsts.geomgraph.Node(coord,new jsts.geomgraph.DirectedEdgeStar)};jsts.operation.overlay.PolygonBuilder=function(geometryFactory){this.shellList=[];this.geometryFactory=geometryFactory};jsts.operation.overlay.PolygonBuilder.prototype.geometryFactory=null;jsts.operation.overlay.PolygonBuilder.prototype.shellList=null;jsts.operation.overlay.PolygonBuilder.prototype.add=function(graph){if(arguments.length===2){this.add2.apply(this,arguments);return}this.add2(graph.getEdgeEnds(),graph.getNodes())};jsts.operation.overlay.PolygonBuilder.prototype.add2=function(dirEdges,nodes){jsts.geomgraph.PlanarGraph.linkResultDirectedEdges(nodes);var maxEdgeRings=this.buildMaximalEdgeRings(dirEdges);var freeHoleList=[];var edgeRings=this.buildMinimalEdgeRings(maxEdgeRings,this.shellList,freeHoleList);this.sortShellsAndHoles(edgeRings,this.shellList,freeHoleList);this.placeFreeHoles(this.shellList,freeHoleList)};jsts.operation.overlay.PolygonBuilder.prototype.getPolygons=function(){var resultPolyList=this.computePolygons(this.shellList);return resultPolyList};jsts.operation.overlay.PolygonBuilder.prototype.buildMaximalEdgeRings=function(dirEdges){var maxEdgeRings=[];for(var it=dirEdges.iterator();it.hasNext();){var de=it.next();if(de.isInResult()&&de.getLabel().isArea()){if(de.getEdgeRing()==null){var er=new jsts.operation.overlay.MaximalEdgeRing(de,this.geometryFactory);maxEdgeRings.push(er);er.setInResult()}}}return maxEdgeRings};jsts.operation.overlay.PolygonBuilder.prototype.buildMinimalEdgeRings=function(maxEdgeRings,shellList,freeHoleList){var edgeRings=[];for(var i=0;i<maxEdgeRings.length;i++){var er=maxEdgeRings[i];if(er.getMaxNodeDegree()>2){er.linkDirectedEdgesForMinimalEdgeRings();var minEdgeRings=er.buildMinimalRings();var shell=this.findShell(minEdgeRings);if(shell!==null){this.placePolygonHoles(shell,minEdgeRings);shellList.push(shell)}else{freeHoleList=freeHoleList.concat(minEdgeRings)}}else{edgeRings.push(er)}}return edgeRings};jsts.operation.overlay.PolygonBuilder.prototype.findShell=function(minEdgeRings){var shellCount=0;var shell=null;for(var i=0;i<minEdgeRings.length;i++){var er=minEdgeRings[i];if(!er.isHole()){shell=er;shellCount++}}jsts.util.Assert.isTrue(shellCount<=1,"found two shells in MinimalEdgeRing list");return shell};jsts.operation.overlay.PolygonBuilder.prototype.placePolygonHoles=function(shell,minEdgeRings){for(var i=0;i<minEdgeRings.length;i++){var er=minEdgeRings[i];if(er.isHole()){er.setShell(shell)}}};jsts.operation.overlay.PolygonBuilder.prototype.sortShellsAndHoles=function(edgeRings,shellList,freeHoleList){for(var i=0;i<edgeRings.length;i++){var er=edgeRings[i];if(er.isHole()){freeHoleList.push(er)}else{shellList.push(er)}}};jsts.operation.overlay.PolygonBuilder.prototype.placeFreeHoles=function(shellList,freeHoleList){for(var i=0;i<freeHoleList.length;i++){var hole=freeHoleList[i];if(hole.getShell()==null){var shell=this.findEdgeRingContaining(hole,shellList);if(shell===null)throw new jsts.error.TopologyError("unable to assign hole to a shell",hole.getCoordinate(0));hole.setShell(shell)}}};jsts.operation.overlay.PolygonBuilder.prototype.findEdgeRingContaining=function(testEr,shellList){var testRing=testEr.getLinearRing();var testEnv=testRing.getEnvelopeInternal();var testPt=testRing.getCoordinateN(0);var minShell=null;var minEnv=null;for(var i=0;i<shellList.length;i++){var tryShell=shellList[i];var tryRing=tryShell.getLinearRing();var tryEnv=tryRing.getEnvelopeInternal();if(minShell!==null)minEnv=minShell.getLinearRing().getEnvelopeInternal();var isContained=false;if(tryEnv.contains(testEnv)&&jsts.algorithm.CGAlgorithms.isPointInRing(testPt,tryRing.getCoordinates()))isContained=true;if(isContained){if(minShell==null||minEnv.contains(tryEnv)){minShell=tryShell}}}return minShell};jsts.operation.overlay.PolygonBuilder.prototype.computePolygons=function(shellList){var resultPolyList=new javascript.util.ArrayList;for(var i=0;i<shellList.length;i++){var er=shellList[i];var poly=er.toPolygon(this.geometryFactory);resultPolyList.add(poly)}return resultPolyList};jsts.operation.overlay.PolygonBuilder.prototype.containsPoint=function(p){for(var i=0;i<this.shellList.length;i++){var er=this.shellList[i];if(er.containsPoint(p))return true}return false};(function(){var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;var LineBuilder=function(op,geometryFactory,ptLocator){this.lineEdgesList=new ArrayList;this.resultLineList=new ArrayList;this.op=op;this.geometryFactory=geometryFactory;this.ptLocator=ptLocator};LineBuilder.prototype.op=null;LineBuilder.prototype.geometryFactory=null;LineBuilder.prototype.ptLocator=null;LineBuilder.prototype.lineEdgesList=null;LineBuilder.prototype.resultLineList=null;LineBuilder.prototype.build=function(opCode){this.findCoveredLineEdges();this.collectLines(opCode);this.buildLines(opCode);return this.resultLineList};LineBuilder.prototype.findCoveredLineEdges=function(){for(var nodeit=this.op.getGraph().getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().findCoveredLineEdges()}for(var it=this.op.getGraph().getEdgeEnds().iterator();it.hasNext();){var de=it.next();var e=de.getEdge();if(de.isLineEdge()&&!e.isCoveredSet()){var isCovered=this.op.isCoveredByA(de.getCoordinate());e.setCovered(isCovered)}}};LineBuilder.prototype.collectLines=function(opCode){for(var it=this.op.getGraph().getEdgeEnds().iterator();it.hasNext();){var de=it.next();this.collectLineEdge(de,opCode,this.lineEdgesList);this.collectBoundaryTouchEdge(de,opCode,this.lineEdgesList)}};LineBuilder.prototype.collectLineEdge=function(de,opCode,edges){var label=de.getLabel();var e=de.getEdge();if(de.isLineEdge()){if(!de.isVisited()&&jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)&&!e.isCovered()){edges.add(e);de.setVisitedEdge(true)}}};LineBuilder.prototype.collectBoundaryTouchEdge=function(de,opCode,edges){var label=de.getLabel();if(de.isLineEdge())return;if(de.isVisited())return;if(de.isInteriorAreaEdge())return;if(de.getEdge().isInResult())return;Assert.isTrue(!(de.isInResult()||de.getSym().isInResult())||!de.getEdge().isInResult());if(jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)&&opCode===jsts.operation.overlay.OverlayOp.INTERSECTION){edges.add(de.getEdge());de.setVisitedEdge(true)}};LineBuilder.prototype.buildLines=function(opCode){for(var it=this.lineEdgesList.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();var line=this.geometryFactory.createLineString(e.getCoordinates());this.resultLineList.add(line);e.setInResult(true)}};LineBuilder.prototype.labelIsolatedLines=function(edgesList){for(var it=edgesList.iterator();it.hasNext();){var e=it.next();var label=e.getLabel();if(e.isIsolated()){if(label.isNull(0))this.labelIsolatedLine(e,0);else this.labelIsolatedLine(e,1)}}};LineBuilder.prototype.labelIsolatedLine=function(e,targetIndex){var loc=ptLocator.locate(e.getCoordinate(),op.getArgGeometry(targetIndex));e.getLabel().setLocation(targetIndex,loc)};jsts.operation.overlay.LineBuilder=LineBuilder})();(function(){var ArrayList=javascript.util.ArrayList;var PointBuilder=function(op,geometryFactory,ptLocator){this.resultPointList=new ArrayList;this.op=op;this.geometryFactory=geometryFactory};PointBuilder.prototype.op=null;PointBuilder.prototype.geometryFactory=null;PointBuilder.prototype.resultPointList=null;PointBuilder.prototype.build=function(opCode){this.extractNonCoveredResultNodes(opCode);return this.resultPointList};PointBuilder.prototype.extractNonCoveredResultNodes=function(opCode){for(var nodeit=this.op.getGraph().getNodes().iterator();nodeit.hasNext();){var n=nodeit.next();if(n.isInResult())continue;if(n.isIncidentEdgeInResult())continue;if(n.getEdges().getDegree()===0||opCode===jsts.operation.overlay.OverlayOp.INTERSECTION){var label=n.getLabel();if(jsts.operation.overlay.OverlayOp.isResultOfOp(label,opCode)){this.filterCoveredNodeToPoint(n)}}}};PointBuilder.prototype.filterCoveredNodeToPoint=function(n){var coord=n.getCoordinate();if(!this.op.isCoveredByLA(coord)){var pt=this.geometryFactory.createPoint(coord);this.resultPointList.add(pt)}};jsts.operation.overlay.PointBuilder=PointBuilder})();(function(){var PointLocator=jsts.algorithm.PointLocator;var Location=jsts.geom.Location;var EdgeList=jsts.geomgraph.EdgeList;var Label=jsts.geomgraph.Label;var PlanarGraph=jsts.geomgraph.PlanarGraph;var Position=jsts.geomgraph.Position;var EdgeNodingValidator=jsts.geomgraph.EdgeNodingValidator;var GeometryGraphOperation=jsts.operation.GeometryGraphOperation;var OverlayNodeFactory=jsts.operation.overlay.OverlayNodeFactory;var PolygonBuilder=jsts.operation.overlay.PolygonBuilder;var LineBuilder=jsts.operation.overlay.LineBuilder;var PointBuilder=jsts.operation.overlay.PointBuilder;var Assert=jsts.util.Assert;var ArrayList=javascript.util.ArrayList;jsts.operation.overlay.OverlayOp=function(g0,g1){
this.ptLocator=new PointLocator;this.edgeList=new EdgeList;this.resultPolyList=new ArrayList;this.resultLineList=new ArrayList;this.resultPointList=new ArrayList;GeometryGraphOperation.call(this,g0,g1);this.graph=new PlanarGraph(new OverlayNodeFactory);this.geomFact=g0.getFactory()};jsts.operation.overlay.OverlayOp.prototype=new GeometryGraphOperation;jsts.operation.overlay.OverlayOp.constructor=jsts.operation.overlay.OverlayOp;jsts.operation.overlay.OverlayOp.INTERSECTION=1;jsts.operation.overlay.OverlayOp.UNION=2;jsts.operation.overlay.OverlayOp.DIFFERENCE=3;jsts.operation.overlay.OverlayOp.SYMDIFFERENCE=4;jsts.operation.overlay.OverlayOp.overlayOp=function(geom0,geom1,opCode){var gov=new jsts.operation.overlay.OverlayOp(geom0,geom1);var geomOv=gov.getResultGeometry(opCode);return geomOv};jsts.operation.overlay.OverlayOp.isResultOfOp=function(label,opCode){if(arguments.length===3){return jsts.operation.overlay.OverlayOp.isResultOfOp2.apply(this,arguments)}var loc0=label.getLocation(0);var loc1=label.getLocation(1);return jsts.operation.overlay.OverlayOp.isResultOfOp2(loc0,loc1,opCode)};jsts.operation.overlay.OverlayOp.isResultOfOp2=function(loc0,loc1,opCode){if(loc0==Location.BOUNDARY)loc0=Location.INTERIOR;if(loc1==Location.BOUNDARY)loc1=Location.INTERIOR;switch(opCode){case jsts.operation.overlay.OverlayOp.INTERSECTION:return loc0==Location.INTERIOR&&loc1==Location.INTERIOR;case jsts.operation.overlay.OverlayOp.UNION:return loc0==Location.INTERIOR||loc1==Location.INTERIOR;case jsts.operation.overlay.OverlayOp.DIFFERENCE:return loc0==Location.INTERIOR&&loc1!=Location.INTERIOR;case jsts.operation.overlay.OverlayOp.SYMDIFFERENCE:return loc0==Location.INTERIOR&&loc1!=Location.INTERIOR||loc0!=Location.INTERIOR&&loc1==Location.INTERIOR}return false};jsts.operation.overlay.OverlayOp.prototype.ptLocator=null;jsts.operation.overlay.OverlayOp.prototype.geomFact=null;jsts.operation.overlay.OverlayOp.prototype.resultGeom=null;jsts.operation.overlay.OverlayOp.prototype.graph=null;jsts.operation.overlay.OverlayOp.prototype.edgeList=null;jsts.operation.overlay.OverlayOp.prototype.resultPolyList=null;jsts.operation.overlay.OverlayOp.prototype.resultLineList=null;jsts.operation.overlay.OverlayOp.prototype.resultPointList=null;jsts.operation.overlay.OverlayOp.prototype.getResultGeometry=function(funcCode){this.computeOverlay(funcCode);return this.resultGeom};jsts.operation.overlay.OverlayOp.prototype.getGraph=function(){return this.graph};jsts.operation.overlay.OverlayOp.prototype.computeOverlay=function(opCode){this.copyPoints(0);this.copyPoints(1);this.arg[0].computeSelfNodes(this.li,false);this.arg[1].computeSelfNodes(this.li,false);this.arg[0].computeEdgeIntersections(this.arg[1],this.li,true);var baseSplitEdges=new ArrayList;this.arg[0].computeSplitEdges(baseSplitEdges);this.arg[1].computeSplitEdges(baseSplitEdges);var splitEdges=baseSplitEdges;this.insertUniqueEdges(baseSplitEdges);this.computeLabelsFromDepths();this.replaceCollapsedEdges();EdgeNodingValidator.checkValid(this.edgeList.getEdges());this.graph.addEdges(this.edgeList.getEdges());this.computeLabelling();this.labelIncompleteNodes();this.findResultAreaEdges(opCode);this.cancelDuplicateResultEdges();var polyBuilder=new PolygonBuilder(this.geomFact);polyBuilder.add(this.graph);this.resultPolyList=polyBuilder.getPolygons();var lineBuilder=new LineBuilder(this,this.geomFact,this.ptLocator);this.resultLineList=lineBuilder.build(opCode);var pointBuilder=new PointBuilder(this,this.geomFact,this.ptLocator);this.resultPointList=pointBuilder.build(opCode);this.resultGeom=this.computeGeometry(this.resultPointList,this.resultLineList,this.resultPolyList,opCode)};jsts.operation.overlay.OverlayOp.prototype.insertUniqueEdges=function(edges){for(var i=edges.iterator();i.hasNext();){var e=i.next();this.insertUniqueEdge(e)}};jsts.operation.overlay.OverlayOp.prototype.insertUniqueEdge=function(e){var existingEdge=this.edgeList.findEqualEdge(e);if(existingEdge!==null){var existingLabel=existingEdge.getLabel();var labelToMerge=e.getLabel();if(!existingEdge.isPointwiseEqual(e)){labelToMerge=new Label(e.getLabel());labelToMerge.flip()}var depth=existingEdge.getDepth();if(depth.isNull()){depth.add(existingLabel)}depth.add(labelToMerge);existingLabel.merge(labelToMerge)}else{this.edgeList.add(e)}};jsts.operation.overlay.OverlayOp.prototype.computeLabelsFromDepths=function(){for(var it=this.edgeList.iterator();it.hasNext();){var e=it.next();var lbl=e.getLabel();var depth=e.getDepth();if(!depth.isNull()){depth.normalize();for(var i=0;i<2;i++){if(!lbl.isNull(i)&&lbl.isArea()&&!depth.isNull(i)){if(depth.getDelta(i)==0){lbl.toLine(i)}else{Assert.isTrue(!depth.isNull(i,Position.LEFT),"depth of LEFT side has not been initialized");lbl.setLocation(i,Position.LEFT,depth.getLocation(i,Position.LEFT));Assert.isTrue(!depth.isNull(i,Position.RIGHT),"depth of RIGHT side has not been initialized");lbl.setLocation(i,Position.RIGHT,depth.getLocation(i,Position.RIGHT))}}}}}};jsts.operation.overlay.OverlayOp.prototype.replaceCollapsedEdges=function(){var newEdges=new ArrayList;for(var it=this.edgeList.iterator();it.hasNext();){var e=it.next();if(e.isCollapsed()){it.remove();newEdges.add(e.getCollapsedEdge())}}this.edgeList.addAll(newEdges)};jsts.operation.overlay.OverlayOp.prototype.copyPoints=function(argIndex){for(var i=this.arg[argIndex].getNodeIterator();i.hasNext();){var graphNode=i.next();var newNode=this.graph.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.overlay.OverlayOp.prototype.computeLabelling=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().computeLabelling(this.arg)}this.mergeSymLabels();this.updateNodeLabelling()};jsts.operation.overlay.OverlayOp.prototype.mergeSymLabels=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();node.getEdges().mergeSymLabels()}};jsts.operation.overlay.OverlayOp.prototype.updateNodeLabelling=function(){for(var nodeit=this.graph.getNodes().iterator();nodeit.hasNext();){var node=nodeit.next();var lbl=node.getEdges().getLabel();node.getLabel().merge(lbl)}};jsts.operation.overlay.OverlayOp.prototype.labelIncompleteNodes=function(){var nodeCount=0;for(var ni=this.graph.getNodes().iterator();ni.hasNext();){var n=ni.next();var label=n.getLabel();if(n.isIsolated()){nodeCount++;if(label.isNull(0))this.labelIncompleteNode(n,0);else this.labelIncompleteNode(n,1)}n.getEdges().updateLabelling(label)}};jsts.operation.overlay.OverlayOp.prototype.labelIncompleteNode=function(n,targetIndex){var loc=this.ptLocator.locate(n.getCoordinate(),this.arg[targetIndex].getGeometry());n.getLabel().setLocation(targetIndex,loc)};jsts.operation.overlay.OverlayOp.prototype.findResultAreaEdges=function(opCode){for(var it=this.graph.getEdgeEnds().iterator();it.hasNext();){var de=it.next();var label=de.getLabel();if(label.isArea()&&!de.isInteriorAreaEdge()&&jsts.operation.overlay.OverlayOp.isResultOfOp(label.getLocation(0,Position.RIGHT),label.getLocation(1,Position.RIGHT),opCode)){de.setInResult(true)}}};jsts.operation.overlay.OverlayOp.prototype.cancelDuplicateResultEdges=function(){for(var it=this.graph.getEdgeEnds().iterator();it.hasNext();){var de=it.next();var sym=de.getSym();if(de.isInResult()&&sym.isInResult()){de.setInResult(false);sym.setInResult(false)}}};jsts.operation.overlay.OverlayOp.prototype.isCoveredByLA=function(coord){if(this.isCovered(coord,this.resultLineList))return true;if(this.isCovered(coord,this.resultPolyList))return true;return false};jsts.operation.overlay.OverlayOp.prototype.isCoveredByA=function(coord){if(this.isCovered(coord,this.resultPolyList))return true;return false};jsts.operation.overlay.OverlayOp.prototype.isCovered=function(coord,geomList){for(var it=geomList.iterator();it.hasNext();){var geom=it.next();var loc=this.ptLocator.locate(coord,geom);if(loc!=Location.EXTERIOR)return true}return false};jsts.operation.overlay.OverlayOp.prototype.computeGeometry=function(resultPointList,resultLineList,resultPolyList,opcode){var geomList=new ArrayList;geomList.addAll(resultPointList);geomList.addAll(resultLineList);geomList.addAll(resultPolyList);return this.geomFact.buildGeometry(geomList)};jsts.operation.overlay.OverlayOp.prototype.createEmptyResult=function(opCode){var result=null;switch(resultDimension(opCode,this.arg[0].getGeometry(),this.arg[1].getGeometry())){case-1:result=geomFact.createGeometryCollection();break;case 0:result=geomFact.createPoint(null);break;case 1:result=geomFact.createLineString(null);break;case 2:result=geomFact.createPolygon(null,null);break}return result};jsts.operation.overlay.OverlayOp.prototype.resultDimension=function(opCode,g0,g1){var dim0=g0.getDimension();var dim1=g1.getDimension();var resultDimension=-1;switch(opCode){case jsts.operation.overlay.OverlayOp.INTERSECTION:resultDimension=Math.min(dim0,dim1);break;case jsts.operation.overlay.OverlayOp.UNION:resultDimension=Math.max(dim0,dim1);break;case jsts.operation.overlay.OverlayOp.DIFFERENCE:resultDimension=dim0;break;case jsts.operation.overlay.OverlayOp.SYMDIFFERENCE:resultDimension=Math.max(dim0,dim1);break}return resultDimension}})();(function(){var OverlayOp=jsts.operation.overlay.OverlayOp;var GeometrySnapper=jsts.operation.overlay.snap.GeometrySnapper;var SnapOverlayOp=function(g1,g2){this.geom=[];this.geom[0]=g1;this.geom[1]=g2;this.computeSnapTolerance()};SnapOverlayOp.overlayOp=function(g0,g1,opCode){var op=new SnapOverlayOp(g0,g1);return op.getResultGeometry(opCode)};SnapOverlayOp.intersection=function(g0,g1){return this.overlayOp(g0,g1,OverlayOp.INTERSECTION)};SnapOverlayOp.union=function(g0,g1){return this.overlayOp(g0,g1,OverlayOp.UNION)};SnapOverlayOp.difference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.DIFFERENCE)};SnapOverlayOp.symDifference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.SYMDIFFERENCE)};SnapOverlayOp.prototype.geom=null;SnapOverlayOp.prototype.snapTolerance=null;SnapOverlayOp.prototype.computeSnapTolerance=function(){this.snapTolerance=GeometrySnapper.computeOverlaySnapTolerance(this.geom[0],this.geom[1])};SnapOverlayOp.prototype.getResultGeometry=function(opCode){var prepGeom=this.snap(this.geom);var result=OverlayOp.overlayOp(prepGeom[0],prepGeom[1],opCode);return this.prepareResult(result)};SnapOverlayOp.prototype.selfSnap=function(geom){var snapper0=new GeometrySnapper(geom);var snapGeom=snapper0.snapTo(geom,this.snapTolerance);return snapGeom};SnapOverlayOp.prototype.snap=function(geom){var remGeom=geom;var snapGeom=GeometrySnapper.snap(remGeom[0],remGeom[1],this.snapTolerance);return snapGeom};SnapOverlayOp.prototype.prepareResult=function(geom){return geom};SnapOverlayOp.prototype.cbr=null;SnapOverlayOp.prototype.removeCommonBits=function(geom){this.cbr=new jsts.precision.CommonBitsRemover;this.cbr.add(this.geom[0]);this.cbr.add(this.geom[1]);var remGeom=[];remGeom[0]=cbr.removeCommonBits(this.geom[0].clone());remGeom[1]=cbr.removeCommonBits(this.geom[1].clone());return remGeom};jsts.operation.overlay.snap.SnapOverlayOp=SnapOverlayOp})();jsts.geomgraph.index.EdgeSetIntersector=function(){};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.index.EdgeSetIntersector.prototype.computeIntersections2=function(edges0,edges1,si){throw new jsts.error.AbstractMethodInvocationError};jsts.geomgraph.index.SimpleMCSweepLineIntersector=function(){this.events=[]};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.events=null;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.nOverlaps=0;jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}if(testAllSegments){this.addList2(edges,null)}else{this.addList(edges)}this.computeIntersections3(si)};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.addList2(edges0,edges0);this.addList2(edges1,edges1);this.computeIntersections3(si)};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.add=function(edge,edgeSet){if(edge instanceof javascript.util.List){this.addList.apply(this,arguments);return}var mce=edge.getMonotoneChainEdge();var startIndex=mce.getStartIndexes();for(var i=0;i<startIndex.length-1;i++){var mc=new jsts.geomgraph.index.MonotoneChain(mce,i);var insertEvent=new jsts.geomgraph.index.SweepLineEvent(mce.getMinX(i),mc,edgeSet);this.events.push(insertEvent);this.events.push(new jsts.geomgraph.index.SweepLineEvent(mce.getMaxX(i),insertEvent))}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.addList=function(edges){for(var i=edges.iterator();i.hasNext();){var edge=i.next();this.add(edge,edge)}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.addList2=function(edges,edgeSet){for(var i=edges.iterator();i.hasNext();){var edge=i.next();this.add(edge,edgeSet)}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.prepareEvents=function(){this.events.sort(function(a,b){return a.compareTo(b)});for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isDelete()){ev.getInsertEvent().setDeleteEventIndex(i)}}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.computeIntersections3=function(si){this.nOverlaps=0;this.prepareEvents();for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isInsert()){this.processOverlaps(i,ev.getDeleteEventIndex(),ev,si)}}};jsts.geomgraph.index.SimpleMCSweepLineIntersector.prototype.processOverlaps=function(start,end,ev0,si){var mc0=ev0.getObject();for(var i=start;i<end;i++){var ev1=this.events[i];if(ev1.isInsert()){var mc1=ev1.getObject();if(!ev0.isSameLabel(ev1)){mc0.computeIntersections(mc1,si);this.nOverlaps++}}}};jsts.algorithm.locate.SimplePointInAreaLocator=function(geom){this.geom=geom};jsts.algorithm.locate.SimplePointInAreaLocator.locate=function(p,geom){if(geom.isEmpty())return jsts.geom.Location.EXTERIOR;if(jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint(p,geom))return jsts.geom.Location.INTERIOR;return jsts.geom.Location.EXTERIOR};jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint=function(p,geom){if(geom instanceof jsts.geom.Polygon){return jsts.algorithm.locate.SimplePointInAreaLocator.containsPointInPolygon(p,geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){for(var i=0;i<geom.geometries.length;i++){var g2=geom.geometries[i];if(g2!==geom)if(jsts.algorithm.locate.SimplePointInAreaLocator.containsPoint(p,g2))return true}}return false};jsts.algorithm.locate.SimplePointInAreaLocator.containsPointInPolygon=function(p,poly){if(poly.isEmpty())return false;var shell=poly.getExteriorRing();if(!jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing(p,shell))return false;for(var i=0;i<poly.getNumInteriorRing();i++){var hole=poly.getInteriorRingN(i);if(jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing(p,hole))return false}return true};jsts.algorithm.locate.SimplePointInAreaLocator.isPointInRing=function(p,ring){if(!ring.getEnvelopeInternal().intersects(p))return false;return jsts.algorithm.CGAlgorithms.isPointInRing(p,ring.getCoordinates())};jsts.algorithm.locate.SimplePointInAreaLocator.prototype.geom=null;jsts.algorithm.locate.SimplePointInAreaLocator.prototype.locate=function(p){return jsts.algorithm.locate.SimplePointInAreaLocator.locate(p,geom)};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var EdgeEndStar=jsts.geomgraph.EdgeEndStar;var Assert=jsts.util.Assert;jsts.geomgraph.DirectedEdgeStar=function(){jsts.geomgraph.EdgeEndStar.call(this)};jsts.geomgraph.DirectedEdgeStar.prototype=new EdgeEndStar;jsts.geomgraph.DirectedEdgeStar.constructor=jsts.geomgraph.DirectedEdgeStar;jsts.geomgraph.DirectedEdgeStar.prototype.resultAreaEdgeList=null;jsts.geomgraph.DirectedEdgeStar.prototype.label=null;jsts.geomgraph.DirectedEdgeStar.prototype.insert=function(ee){var de=ee;this.insertEdgeEnd(de,de)};jsts.geomgraph.DirectedEdgeStar.prototype.getLabel=function(){return this.label};jsts.geomgraph.DirectedEdgeStar.prototype.getOutgoingDegree=function(){var degree=0;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.isInResult())degree++}return degree};jsts.geomgraph.DirectedEdgeStar.prototype.getOutgoingDegree=function(er){var degree=0;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.getEdgeRing()===er)degree++}return degree};jsts.geomgraph.DirectedEdgeStar.prototype.getRightmostEdge=function(){var edges=this.getEdges();var size=edges.size();if(size<1)return null;var de0=edges.get(0);if(size==1)return de0;var deLast=edges.get(size-1);var quad0=de0.getQuadrant();var quad1=deLast.getQuadrant();if(jsts.geomgraph.Quadrant.isNorthern(quad0)&&jsts.geomgraph.Quadrant.isNorthern(quad1))return de0;else if(!jsts.geomgraph.Quadrant.isNorthern(quad0)&&!jsts.geomgraph.Quadrant.isNorthern(quad1))return deLast;else{var nonHorizontalEdge=null;if(de0.getDy()!=0)return de0;else if(deLast.getDy()!=0)return deLast}Assert.shouldNeverReachHere("found two horizontal edges incident on node");return null};jsts.geomgraph.DirectedEdgeStar.prototype.computeLabelling=function(geom){EdgeEndStar.prototype.computeLabelling.call(this,geom);this.label=new jsts.geomgraph.Label(Location.NONE);for(var it=this.iterator();it.hasNext();){var ee=it.next();var e=ee.getEdge();var eLabel=e.getLabel();for(var i=0;i<2;i++){var eLoc=eLabel.getLocation(i);if(eLoc===Location.INTERIOR||eLoc===Location.BOUNDARY)this.label.setLocation(i,Location.INTERIOR)}}};jsts.geomgraph.DirectedEdgeStar.prototype.mergeSymLabels=function(){for(var it=this.iterator();it.hasNext();){var de=it.next();var label=de.getLabel();label.merge(de.getSym().getLabel())}};jsts.geomgraph.DirectedEdgeStar.prototype.updateLabelling=function(nodeLabel){for(var it=this.iterator();it.hasNext();){var de=it.next();var label=de.getLabel();label.setAllLocationsIfNull(0,nodeLabel.getLocation(0));label.setAllLocationsIfNull(1,nodeLabel.getLocation(1))}};jsts.geomgraph.DirectedEdgeStar.prototype.getResultAreaEdges=function(){if(this.resultAreaEdgeList!==null)return this.resultAreaEdgeList;this.resultAreaEdgeList=new javascript.util.ArrayList;for(var it=this.iterator();it.hasNext();){var de=it.next();if(de.isInResult()||de.getSym().isInResult())this.resultAreaEdgeList.add(de)}return this.resultAreaEdgeList};jsts.geomgraph.DirectedEdgeStar.prototype.SCANNING_FOR_INCOMING=1;jsts.geomgraph.DirectedEdgeStar.prototype.LINKING_TO_OUTGOING=2;jsts.geomgraph.DirectedEdgeStar.prototype.linkResultDirectedEdges=function(){this.getResultAreaEdges();var firstOut=null;var incoming=null;var state=this.SCANNING_FOR_INCOMING;for(var i=0;i<this.resultAreaEdgeList.size();i++){var nextOut=this.resultAreaEdgeList.get(i);var nextIn=nextOut.getSym();if(!nextOut.getLabel().isArea())continue;if(firstOut===null&&nextOut.isInResult())firstOut=nextOut;switch(state){case this.SCANNING_FOR_INCOMING:if(!nextIn.isInResult())continue;incoming=nextIn;state=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(!nextOut.isInResult())continue;incoming.setNext(nextOut);state=this.SCANNING_FOR_INCOMING;break}}if(state===this.LINKING_TO_OUTGOING){if(firstOut===null)throw new jsts.error.TopologyError("no outgoing dirEdge found",this.getCoordinate());Assert.isTrue(firstOut.isInResult(),"unable to link last incoming dirEdge");incoming.setNext(firstOut)}};jsts.geomgraph.DirectedEdgeStar.prototype.linkMinimalDirectedEdges=function(er){var firstOut=null;var incoming=null;var state=this.SCANNING_FOR_INCOMING;for(var i=this.resultAreaEdgeList.size()-1;i>=0;i--){var nextOut=this.resultAreaEdgeList.get(i);var nextIn=nextOut.getSym();if(firstOut===null&&nextOut.getEdgeRing()===er)firstOut=nextOut;switch(state){case this.SCANNING_FOR_INCOMING:if(nextIn.getEdgeRing()!=er)continue;incoming=nextIn;state=this.LINKING_TO_OUTGOING;break;case this.LINKING_TO_OUTGOING:if(nextOut.getEdgeRing()!==er)continue;incoming.setNextMin(nextOut);state=this.SCANNING_FOR_INCOMING;break}}if(state===this.LINKING_TO_OUTGOING){Assert.isTrue(firstOut!==null,"found null for first outgoing dirEdge");Assert.isTrue(firstOut.getEdgeRing()===er,"unable to link last incoming dirEdge");incoming.setNextMin(firstOut)}};jsts.geomgraph.DirectedEdgeStar.prototype.linkAllDirectedEdges=function(){this.getEdges();var prevOut=null;var firstIn=null;for(var i=this.edgeList.size()-1;i>=0;i--){var nextOut=this.edgeList.get(i);var nextIn=nextOut.getSym();if(firstIn===null)firstIn=nextIn;if(prevOut!==null)nextIn.setNext(prevOut);prevOut=nextOut}firstIn.setNext(prevOut)};jsts.geomgraph.DirectedEdgeStar.prototype.findCoveredLineEdges=function(){var startLoc=Location.NONE;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(!nextOut.isLineEdge()){if(nextOut.isInResult()){startLoc=Location.INTERIOR;break}if(nextIn.isInResult()){startLoc=Location.EXTERIOR;break}}}if(startLoc===Location.NONE)return;var currLoc=startLoc;for(var it=this.iterator();it.hasNext();){var nextOut=it.next();var nextIn=nextOut.getSym();if(nextOut.isLineEdge()){nextOut.getEdge().setCovered(currLoc===Location.INTERIOR)}else{if(nextOut.isInResult())currLoc=Location.EXTERIOR;if(nextIn.isInResult())currLoc=Location.INTERIOR}}};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths=function(de){if(arguments.length===2){this.computeDepths2.apply(this,arguments);return}var edgeIndex=this.findIndex(de);var label=de.getLabel();var startDepth=de.getDepth(Position.LEFT);var targetLastDepth=de.getDepth(Position.RIGHT);var nextDepth=this.computeDepths2(edgeIndex+1,this.edgeList.size(),startDepth);var lastDepth=this.computeDepths2(0,edgeIndex,nextDepth);if(lastDepth!=targetLastDepth)throw new jsts.error.TopologyError("depth mismatch at "+de.getCoordinate())};jsts.geomgraph.DirectedEdgeStar.prototype.computeDepths2=function(startIndex,endIndex,startDepth){var currDepth=startDepth;for(var i=startIndex;i<endIndex;i++){var nextDe=this.edgeList.get(i);var label=nextDe.getLabel();nextDe.setEdgeDepths(Position.RIGHT,currDepth);currDepth=nextDe.getDepth(Position.LEFT)}return currDepth}})();jsts.algorithm.CentroidLine=function(){this.centSum=new jsts.geom.Coordinate};jsts.algorithm.CentroidLine.prototype.centSum=null;jsts.algorithm.CentroidLine.prototype.totalLength=0;jsts.algorithm.CentroidLine.prototype.add=function(geom){if(geom instanceof Array){this.add2.apply(this,arguments);return}if(geom instanceof jsts.geom.LineString){this.add(geom.getCoordinates())}else if(geom instanceof jsts.geom.Polygon){var poly=geom;this.add(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.add(poly.getInteriorRingN(i).getCoordinates())}}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}};jsts.algorithm.CentroidLine.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;cent.x=this.centSum.x/this.totalLength;cent.y=this.centSum.y/this.totalLength;return cent};jsts.algorithm.CentroidLine.prototype.add2=function(pts){for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);this.totalLength+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.centSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.centSum.y+=segmentLen*midy}};jsts.index.IntervalSize=function(){};jsts.index.IntervalSize.MIN_BINARY_EXPONENT=-50;jsts.index.IntervalSize.isZeroWidth=function(min,max){var width=max-min;if(width===0){return true}var maxAbs,scaledInterval,level;maxAbs=Math.max(Math.abs(min),Math.abs(max));scaledInterval=width/maxAbs;level=jsts.index.DoubleBits.exponent(scaledInterval);return level<=jsts.index.IntervalSize.MIN_BINARY_EXPONENT};jsts.geomgraph.index.SimpleEdgeSetIntersector=function(){};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.nOverlaps=0;jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}this.nOverlaps=0;for(var i0=edges.iterator();i0.hasNext();){var edge0=i0.next();for(var i1=edges.iterator();i1.hasNext();){var edge1=i1.next();if(testAllSegments||edge0!=edge1)this.computeIntersects(edge0,edge1,si)}}};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.nOverlaps=0;for(var i0=edges0.iterator();i0.hasNext();){var edge0=i0.next();for(var i1=edges1.iterator();i1.hasNext();){var edge1=i1.next();this.computeIntersects(edge0,edge1,si)}}};jsts.geomgraph.index.SimpleEdgeSetIntersector.prototype.computeIntersects=function(e0,e1,si){var pts0=e0.getCoordinates();var pts1=e1.getCoordinates();var i0,i1;for(i0=0;i0<pts0.length-1;i0++){for(i1=0;i1<pts1.length-1;i1++){si.addIntersections(e0,i0,e1,i1)}}};jsts.geomgraph.Edge=function(pts,label){this.pts=pts;this.label=label;this.eiList=new jsts.geomgraph.EdgeIntersectionList(this);this.depth=new jsts.geomgraph.Depth};jsts.geomgraph.Edge.prototype=new jsts.geomgraph.GraphComponent;jsts.geomgraph.Edge.constructor=jsts.geomgraph.Edge;jsts.geomgraph.Edge.updateIM=function(label,im){im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.ON),label.getLocation(1,jsts.geomgraph.Position.ON),1);if(label.isArea()){im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.LEFT),label.getLocation(1,jsts.geomgraph.Position.LEFT),2);im.setAtLeastIfValid(label.getLocation(0,jsts.geomgraph.Position.RIGHT),label.getLocation(1,jsts.geomgraph.Position.RIGHT),2)}};jsts.geomgraph.Edge.prototype.pts=null;jsts.geomgraph.Edge.prototype.env=null;jsts.geomgraph.Edge.prototype.name=null;jsts.geomgraph.Edge.prototype.mce=null;jsts.geomgraph.Edge.prototype._isIsolated=true;jsts.geomgraph.Edge.prototype.depth=null;jsts.geomgraph.Edge.prototype.depthDelta=0;jsts.geomgraph.Edge.prototype.eiList=null;jsts.geomgraph.Edge.prototype.getNumPoints=function(){return this.pts.length};jsts.geomgraph.Edge.prototype.getEnvelope=function(){if(this.env===null){this.env=new jsts.geom.Envelope;for(var i=0;i<this.pts.length;i++){this.env.expandToInclude(pts[i])}}return env};jsts.geomgraph.Edge.prototype.getDepth=function(){return this.depth};jsts.geomgraph.Edge.prototype.getDepthDelta=function(){return this.depthDelta};jsts.geomgraph.Edge.prototype.setDepthDelta=function(depthDelta){this.depthDelta=depthDelta};jsts.geomgraph.Edge.prototype.getCoordinates=function(){return this.pts};jsts.geomgraph.Edge.prototype.getCoordinate=function(i){if(i===undefined){if(this.pts.length>0){return this.pts[0]}else{return null}}return this.pts[i]};jsts.geomgraph.Edge.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.geomgraph.Edge.prototype.setIsolated=function(isIsolated){this._isIsolated=isIsolated};jsts.geomgraph.Edge.prototype.isIsolated=function(){return this._isIsolated};jsts.geomgraph.Edge.prototype.addIntersections=function(li,segmentIndex,geomIndex){for(var i=0;i<li.getIntersectionNum();i++){this.addIntersection(li,segmentIndex,geomIndex,i)}};jsts.geomgraph.Edge.prototype.addIntersection=function(li,segmentIndex,geomIndex,intIndex){var intPt=new jsts.geom.Coordinate(li.getIntersection(intIndex));var normalizedSegmentIndex=segmentIndex;var dist=li.getEdgeDistance(geomIndex,intIndex);var nextSegIndex=normalizedSegmentIndex+1;if(nextSegIndex<this.pts.length){var nextPt=this.pts[nextSegIndex];if(intPt.equals2D(nextPt)){normalizedSegmentIndex=nextSegIndex;dist=0}}var ei=this.eiList.add(intPt,normalizedSegmentIndex,dist)};jsts.geomgraph.Edge.prototype.getMaximumSegmentIndex=function(){return this.pts.length-1};jsts.geomgraph.Edge.prototype.getEdgeIntersectionList=function(){return this.eiList};jsts.geomgraph.Edge.prototype.getMonotoneChainEdge=function(){if(this.mce==null){this.mce=new jsts.geomgraph.index.MonotoneChainEdge(this)}return this.mce};jsts.geomgraph.Edge.prototype.isClosed=function(){return this.pts[0].equals(this.pts[this.pts.length-1])};jsts.geomgraph.Edge.prototype.isCollapsed=function(){if(!this.label.isArea())return false;if(this.pts.length!=3)return false;if(this.pts[0].equals(this.pts[2]))return true;return false};jsts.geomgraph.Edge.prototype.getCollapsedEdge=function(){var newPts=[];newPts[0]=this.pts[0];newPts[1]=this.pts[1];var newe=new jsts.geomgraph.Edge(newPts,jsts.geomgraph.Label.toLineLabel(this.label));return newe};jsts.geomgraph.Edge.prototype.computeIM=function(im){jsts.geomgraph.Edge.updateIM(this.label,im)};jsts.geomgraph.Edge.prototype.isPointwiseEqual=function(e){if(this.pts.length!=e.pts.length)return false;for(var i=0;i<this.pts.length;i++){if(!this.pts[i].equals2D(e.pts[i])){return false}}return true};jsts.noding.Octant=function(){throw jsts.error.AbstractMethodInvocationError()};jsts.noding.Octant.octant=function(dx,dy){if(dx instanceof jsts.geom.Coordinate){return jsts.noding.Octant.octant2.apply(this,arguments)}if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the octant for point ( "+dx+", "+dy+" )");var adx=Math.abs(dx);var ady=Math.abs(dy);if(dx>=0){if(dy>=0){if(adx>=ady)return 0;else return 1}else{if(adx>=ady)return 7;else return 6}}else{if(dy>=0){if(adx>=ady)return 3;else return 2}else{if(adx>=ady)return 4;else return 5}}};jsts.noding.Octant.octant2=function(p0,p1){var dx=p1.x-p0.x;var dy=p1.y-p0.y;if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the octant for two identical points "+p0);return jsts.noding.Octant.octant(dx,dy)};jsts.operation.union.UnionInteracting=function(g0,g1){this.g0=g0;this.g1=g1;this.geomFactory=g0.getFactory();this.interacts0=[];this.interacts1=[]};jsts.operation.union.UnionInteracting.union=function(g0,g1){var uue=new jsts.operation.union.UnionInteracting(g0,g1);return uue.union()};jsts.operation.union.UnionInteracting.prototype.geomFactory=null;jsts.operation.union.UnionInteracting.prototype.g0=null;jsts.operation.union.UnionInteracting.prototype.g1=null;jsts.operation.union.UnionInteracting.prototype.interacts0=null;jsts.operation.union.UnionInteracting.prototype.interacts1=null;jsts.operation.union.UnionInteracting.prototype.union=function(){this.computeInteracting();var int0=this.extractElements(this.g0,this.interacts0,true);var int1=this.extractElements(this.g1,this.interacts1,true);if(int0.isEmpty()||int1.isEmpty()){}var union=in0.union(int1);var disjoint0=this.extractElements(this.g0,this.interacts0,false);var disjoint1=this.extractElements(this.g1,this.interacts1,false);var overallUnion=jsts.geom.util.GeometryCombiner.combine(union,disjoint0,disjoint1);return overallUnion};jsts.operation.union.UnionInteracting.prototype.bufferUnion=function(g0,g1){var factory=g0.getFactory();var gColl=factory.createGeometryCollection([g0,g1]);var unionAll=gColl.buffer(0);return unionAll};jsts.operation.union.UnionInteracting.prototype.computeInteracting=function(elem0){if(!elem0){for(var i=0,l=this.g0.getNumGeometries();i<l;i++){var elem=this.g0.getGeometryN(i);this.interacts0[i]=this.computeInteracting(elem)}}else{var interactsWithAny=false;for(var i=0,l=g1.getNumGeometries();i<l;i++){var elem1=this.g1.getGeometryN(i);var interacts=elem1.getEnvelopeInternal().intersects(elem0.getEnvelopeInternal());if(interacts){this.interacts1[i]=true;interactsWithAny=true}}return interactsWithAny}};jsts.operation.union.UnionInteracting.prototype.extractElements=function(geom,interacts,isInteracting){var extractedGeoms=[];
for(var i=0,l=geom.getNumGeometries();i<l;i++){var elem=geom.getGeometryN(i);if(interacts[i]===isInteracting){extractedGeoms.push(elem)}}return this.geomFactory.buildGeometry(extractedGeoms)};jsts.triangulate.quadedge.TrianglePredicate=function(){};jsts.triangulate.quadedge.TrianglePredicate.isInCircleNonRobust=function(a,b,c,p){var isInCircle=(a.x*a.x+a.y*a.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(b,c,p)-(b.x*b.x+b.y*b.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,c,p)+(c.x*c.x+c.y*c.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,b,p)-(p.x*p.x+p.y*p.y)*jsts.triangulate.quadedge.TrianglePredicate.triArea(a,b,c)>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,disc;adx=a.x-p.x;ady=a.y-p.y;bdx=b.x-p.x;bdy=b.y-p.y;cdx=c.x-p.x;cdy=c.y-p.y;abdet=adx*bdy-bdx*ady;bcdet=bdx*cdy-cdx*bdy;cadet=cdx*ady-adx*cdy;alift=adx*adx+ady*ady;blift=bdx*bdx+bdy*bdy;clift=cdx*cdx+cdy*cdy;disc=alift*bcdet+blift*cadet+clift*abdet;return disc>0};jsts.triangulate.quadedge.TrianglePredicate.triArea=function(a,b,c){return(b.x-a.x)*(c.y-a.y)-(b.y-a.y)*(c.x-a.x)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleRobust=function(a,b,c,p){return jsts.triangulate.quadedge.TrianglePredicate.isInCircleNormalized(a,b,c,p)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDSlow=function(a,b,c,p){var px,py,ax,ay,bx,by,cx,cy,aTerm,bTerm,cTerm,pTerm,sum,isInCircle;px=jsts.math.DD.valueOf(p.x);py=jsts.math.DD.valueOf(p.y);ax=jsts.math.DD.valueOf(a.x);ay=jsts.math.DD.valueOf(a.y);bx=jsts.math.DD.valueOf(b.x);by=jsts.math.DD.valueOf(b.y);cx=jsts.math.DD.valueOf(c.x);cy=jsts.math.DD.valueOf(c.y);aTerm=ax.multiply(ax).add(ay.multiply(ay)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(bx,by,cx,cy,px,py));bTerm=bx.multiply(bx).add(by.multiply(by)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,cx,cy,px,py));cTerm=cx.multiply(cx).add(cy.multiply(cy)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,px,py));pTerm=px.multiply(px).add(py.multiply(py)).multiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow(ax,ay,bx,by,cx,cy));sum=aTerm.subtract(bTerm).add(cTerm).subtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDSlow=function(ax,ay,bx,by,cx,cy){return bx.subtract(ax).multiply(cy.subtract(ay)).subtract(by.subtract(ay).multiply(cx.subtract(ax)))};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDFast=function(a,b,c,p){var aTerm,bTerm,cTerm,pTerm,sum,isInCircle;aTerm=jsts.math.DD.sqr(a.x).selfAdd(jsts.math.DD.sqr(a.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(b,c,p));bTerm=jsts.math.DD.sqr(b.x).selfAdd(jsts.math.DD.sqr(b.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,c,p));cTerm=jsts.math.DD.sqr(c.x).selfAdd(jsts.math.DD.sqr(c.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,p));pTerm=jsts.math.DD.sqr(p.x).selfAdd(jsts.math.DD.sqr(p.y)).selfMultiply(jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast(a,b,c));sum=aTerm.selfSubtract(bTerm).selfAdd(cTerm).selfSubtract(pTerm);isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.triAreaDDFast=function(a,b,c){var t1,t2;t1=jsts.math.DD.valueOf(b.x).selfSubtract(a.x).selfMultiply(jsts.math.DD.valueOf(c.y).selfSubtract(a.y));t2=jsts.math.DD.valueOf(b.y).selSubtract(a.y).selfMultiply(jsts.math.DD.valueOf(c.x).selfSubtract(a.x));return t1.selfSubtract(t2)};jsts.triangulate.quadedge.TrianglePredicate.isInCircleDDNormalized=function(a,b,c,p){var adx,ady,bdx,bdy,cdx,cdy,abdet,bcdet,cadet,alift,blift,clift,sum,isInCircle;adx=jsts.math.DD.valueOf(a.x).selfSubtract(p.x);ady=jsts.math.DD.valueOf(a.y).selfSubtract(p.y);bdx=jsts.math.DD.valueOf(b.x).selfSubtract(p.x);bdx=jsts.math.DD.valueOf(b.y).selfSubtract(p.y);cdx=jsts.math.DD.valueOf(c.x).selfSubtract(p.x);cdx=jsts.math.DD.valueOf(c.y).selfSubtract(p.y);abdet=adx.multiply(bdy).selfSubtract(bdx.multiply(ady));bcdet=bdx.multiply(cdy).selfSubtract(cdx.multiply(bdy));cadet=cdx.multiply(ady).selfSubtract(adx.multiply(cdy));alift=adx.multiply(adx).selfAdd(ady.multiply(ady));blift=bdx.multiply(bdx).selfAdd(bdy.multiply(bdy));clift=cdx.multiply(cdx).selfAdd(cdy.multiply(cdy));sum=alift.selfMultiply(bcdet).selfAdd(blift.selfMultiply(cadet)).selfAdd(clift.selfMultiply(abdet));isInCircle=sum.doubleValue()>0;return isInCircle};jsts.triangulate.quadedge.TrianglePredicate.isInCircleCC=function(a,b,c,p){var cc,ccRadius,pRadiusDiff;cc=jsts.geom.Triangle.circumcentre(a,b,c);ccRadius=a.distance(cc);pRadiusDiff=p.distance(cc)-ccRadius;return pRadiusDiff<=0};jsts.operation.union.PointGeometryUnion=function(pointGeom,otherGeom){this.pointGeom=pointGeom;this.otherGeom=otherGeom;this.geomFact=otherGeom.getFactory()};jsts.operation.union.PointGeometryUnion.union=function(pointGeom,otherGeom){var unioner=new jsts.operation.union.PointGeometryUnion(pointGeom,otherGeom);return unioner.union()};jsts.operation.union.PointGeometryUnion.prototype.pointGeom=null;jsts.operation.union.PointGeometryUnion.prototype.otherGeom=null;jsts.operation.union.PointGeometryUnion.prototype.geomFact=null;jsts.operation.union.PointGeometryUnion.prototype.union=function(){var locator=new jsts.algorithm.PointLocator;var exteriorCoords=[];for(var i=0,l=this.pointGeom.getNumGeometries();i<l;i++){var point=this.pointGeom.getGeometryN(i);var coord=point.getCoordinate();var loc=locator.locate(coord,this.otherGeom);if(loc===jsts.geom.Location.EXTERIOR){var include=true;for(var j=exteriorCoords.length;i--;){if(exteriorCoords[j].equals(coord)){include=false;break}}if(include){exteriorCoords.push(coord)}}}exteriorCoords.sort(function(x,y){return x.compareTo(y)});if(exteriorCoords.length===0){return this.otherGeom}var ptComp=null;var coords=jsts.geom.CoordinateArrays.toCoordinateArray(exteriorCoords);if(coords.length===1){ptComp=this.geomFact.createPoint(coords[0])}else{ptComp=this.geomFact.createMultiPoint(coords)}return jsts.geom.util.GeometryCombiner.combine(ptComp,this.otherGeom)};jsts.noding.IntersectionFinderAdder=function(li){this.li=li;this.interiorIntersections=new javascript.util.ArrayList};jsts.noding.IntersectionFinderAdder.prototype=new jsts.noding.SegmentIntersector;jsts.noding.IntersectionFinderAdder.constructor=jsts.noding.IntersectionFinderAdder;jsts.noding.IntersectionFinderAdder.prototype.li=null;jsts.noding.IntersectionFinderAdder.prototype.interiorIntersections=null;jsts.noding.IntersectionFinderAdder.prototype.getInteriorIntersections=function(){return this.interiorIntersections};jsts.noding.IntersectionFinderAdder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.li.isInteriorIntersection()){for(var intIndex=0;intIndex<this.li.getIntersectionNum();intIndex++){this.interiorIntersections.add(this.li.getIntersection(intIndex))}e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1)}}};jsts.noding.IntersectionFinderAdder.prototype.isDone=function(){return false};jsts.noding.snapround.MCIndexSnapRounder=function(pm){this.pm=pm;this.li=new jsts.algorithm.RobustLineIntersector;this.li.setPrecisionModel(pm);this.scaleFactor=pm.getScale()};jsts.noding.snapround.MCIndexSnapRounder.prototype=new jsts.noding.Noder;jsts.noding.snapround.MCIndexSnapRounder.constructor=jsts.noding.snapround.MCIndexSnapRounder;jsts.noding.snapround.MCIndexSnapRounder.prototype.pm=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.li=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.scaleFactor=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.noder=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.pointSnapper=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.nodedSegStrings=null;jsts.noding.snapround.MCIndexSnapRounder.prototype.getNodedSubstrings=function(){return jsts.noding.NodedSegmentString.getNodedSubstrings(this.nodedSegStrings)};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeNodes=function(inputSegmentStrings){this.nodedSegStrings=inputSegmentStrings;this.noder=new jsts.noding.MCIndexNoder;this.pointSnapper=new jsts.noding.snapround.MCIndexPointSnapper(this.noder.getIndex());this.snapRound(inputSegmentStrings,this.li)};jsts.noding.snapround.MCIndexSnapRounder.prototype.snapRound=function(segStrings,li){var intersections=this.findInteriorIntersections(segStrings,li);this.computeIntersectionSnaps(intersections);this.computeVertexSnaps(segStrings)};jsts.noding.snapround.MCIndexSnapRounder.prototype.findInteriorIntersections=function(segStrings,li){var intFinderAdder=new jsts.noding.IntersectionFinderAdder(li);this.noder.setSegmentIntersector(intFinderAdder);this.noder.computeNodes(segStrings);return intFinderAdder.getInteriorIntersections()};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeIntersectionSnaps=function(snapPts){for(var it=snapPts.iterator();it.hasNext();){var snapPt=it.next();var hotPixel=new jsts.noding.snapround.HotPixel(snapPt,this.scaleFactor,this.li);this.pointSnapper.snap(hotPixel)}};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeVertexSnaps=function(edges){if(edges instanceof jsts.noding.NodedSegmentString){this.computeVertexSnaps2.apply(this,arguments);return}for(var i0=edges.iterator();i0.hasNext();){var edge0=i0.next();this.computeVertexSnaps(edge0)}};jsts.noding.snapround.MCIndexSnapRounder.prototype.computeVertexSnaps2=function(e){var pts0=e.getCoordinates();for(var i=0;i<pts0.length-1;i++){var hotPixel=new jsts.noding.snapround.HotPixel(pts0[i],this.scaleFactor,this.li);var isNodeAdded=this.pointSnapper.snap(hotPixel,e,i);if(isNodeAdded){e.addIntersection(pts0[i],i)}}};jsts.operation.valid.ConnectedInteriorTester=function(geomGraph){this.geomGraph=geomGraph;this.geometryFactory=new jsts.geom.GeometryFactory;this.disconnectedRingcoord=null};jsts.operation.valid.ConnectedInteriorTester.findDifferentPoint=function(coord,pt){var i=0,il=coord.length;for(i;i<il;i++){if(!coord[i].equals(pt))return coord[i]}return null};jsts.operation.valid.ConnectedInteriorTester.prototype.getCoordinate=function(){return this.disconnectedRingcoord};jsts.operation.valid.ConnectedInteriorTester.prototype.isInteriorsConnected=function(){var splitEdges=new javascript.util.ArrayList;this.geomGraph.computeSplitEdges(splitEdges);var graph=new jsts.geomgraph.PlanarGraph(new jsts.operation.overlay.OverlayNodeFactory);graph.addEdges(splitEdges);this.setInteriorEdgesInResult(graph);graph.linkResultDirectedEdges();var edgeRings=this.buildEdgeRings(graph.getEdgeEnds());this.visitShellInteriors(this.geomGraph.getGeometry(),graph);return!this.hasUnvisitedShellEdge(edgeRings)};jsts.operation.valid.ConnectedInteriorTester.prototype.setInteriorEdgesInResult=function(graph){var it=graph.getEdgeEnds().iterator(),de;while(it.hasNext()){de=it.next();if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){de.setInResult(true)}}};jsts.operation.valid.ConnectedInteriorTester.prototype.buildEdgeRings=function(dirEdges){var edgeRings=new javascript.util.ArrayList;for(var it=dirEdges.iterator();it.hasNext();){var de=it.next();if(de.isInResult()&&de.getEdgeRing()==null){var er=new jsts.operation.overlay.MaximalEdgeRing(de,this.geometryFactory);er.linkDirectedEdgesForMinimalEdgeRings();var minEdgeRings=er.buildMinimalRings();var i=0,il=minEdgeRings.length;for(i;i<il;i++){edgeRings.add(minEdgeRings[i])}}}return edgeRings};jsts.operation.valid.ConnectedInteriorTester.prototype.visitShellInteriors=function(g,graph){if(g instanceof jsts.geom.Polygon){var p=g;this.visitInteriorRing(p.getExteriorRing(),graph)}if(g instanceof jsts.geom.MultiPolygon){var mp=g;for(var i=0;i<mp.getNumGeometries();i++){var p=mp.getGeometryN(i);this.visitInteriorRing(p.getExteriorRing(),graph)}}};jsts.operation.valid.ConnectedInteriorTester.prototype.visitInteriorRing=function(ring,graph){var pts=ring.getCoordinates();var pt0=pts[0];var pt1=jsts.operation.valid.ConnectedInteriorTester.findDifferentPoint(pts,pt0);var e=graph.findEdgeInSameDirection(pt0,pt1);var de=graph.findEdgeEnd(e);var intDe=null;if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){intDe=de}else if(de.getSym().getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)==jsts.geom.Location.INTERIOR){intDe=de.getSym()}this.visitLinkedDirectedEdges(intDe)};jsts.operation.valid.ConnectedInteriorTester.prototype.visitLinkedDirectedEdges=function(start){var startDe=start;var de=start;do{de.setVisited(true);de=de.getNext()}while(de!=startDe)};jsts.operation.valid.ConnectedInteriorTester.prototype.hasUnvisitedShellEdge=function(edgeRings){for(var i=0;i<edgeRings.size();i++){var er=edgeRings.get(i);if(er.isHole()){continue}var edges=er.getEdges();var de=edges[0];if(de.getLabel().getLocation(0,jsts.geomgraph.Position.RIGHT)!=jsts.geom.Location.INTERIOR){continue}for(var j=0;j<edges.length;j++){de=edges[j];if(!de.isVisited()){disconnectedRingcoord=de.getCoordinate();return true}}}return false};jsts.algorithm.InteriorPointLine=function(geometry){this.centroid;this.minDistance=Number.MAX_VALUE;this.interiorPoint=null;this.centroid=geometry.getCentroid().getCoordinate();this.addInterior(geometry);if(this.interiorPoint==null){this.addEndpoints(geometry)}};jsts.algorithm.InteriorPointLine.prototype.getInteriorPoint=function(){return this.interiorPoint};jsts.algorithm.InteriorPointLine.prototype.addInterior=function(geometry){if(geometry instanceof jsts.geom.LineString){this.addInteriorCoord(geometry.getCoordinates())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.addInterior(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointLine.prototype.addInteriorCoord=function(pts){for(var i=1;i<pts.length-1;i++){this.add(pts[i])}};jsts.algorithm.InteriorPointLine.prototype.addEndpoints=function(geometry){if(geometry instanceof jsts.geom.LineString){this.addEndpointsCoord(geometry.getCoordinates())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.addEndpoints(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointLine.prototype.addEndpointsCoord=function(pts){this.add(pts[0]);this.add(pts[pts.length-1])};jsts.algorithm.InteriorPointLine.prototype.add=function(point){var dist=point.distance(this.centroid);if(dist<this.minDistance){this.interiorPoint=new jsts.geom.Coordinate(point);this.minDistance=dist}};jsts.index.chain.MonotoneChainSelectAction=function(){this.tempEnv1=new jsts.geom.Envelope;this.selectedSegment=new jsts.geom.LineSegment};jsts.index.chain.MonotoneChainSelectAction.prototype.tempEnv1=null;jsts.index.chain.MonotoneChainSelectAction.prototype.selectedSegment=null;jsts.index.chain.MonotoneChainSelectAction.prototype.select=function(mc,start){mc.getLineSegment(start,this.selectedSegment);this.select2(this.selectedSegment)};jsts.index.chain.MonotoneChainSelectAction.prototype.select2=function(seg){};jsts.algorithm.MCPointInRing=function(ring){this.ring=ring;this.tree=null;this.crossings=0;this.interval=new jsts.index.bintree.Interval;this.buildIndex()};jsts.algorithm.MCPointInRing.MCSelecter=function(p,parent){this.parent=parent;this.p=p};jsts.algorithm.MCPointInRing.MCSelecter.prototype=new jsts.index.chain.MonotoneChainSelectAction;jsts.algorithm.MCPointInRing.MCSelecter.prototype.constructor=jsts.algorithm.MCPointInRing.MCSelecter;jsts.algorithm.MCPointInRing.MCSelecter.prototype.select2=function(ls){this.parent.testLineSegment.apply(this.parent,[this.p,ls])};jsts.algorithm.MCPointInRing.prototype.buildIndex=function(){this.tree=new jsts.index.bintree.Bintree;var pts=jsts.geom.CoordinateArrays.removeRepeatedPoints(this.ring.getCoordinates());var mcList=jsts.index.chain.MonotoneChainBuilder.getChains(pts);for(var i=0;i<mcList.length;i++){var mc=mcList[i];var mcEnv=mc.getEnvelope();this.interval.min=mcEnv.getMinY();this.interval.max=mcEnv.getMaxY();this.tree.insert(this.interval,mc)}};jsts.algorithm.MCPointInRing.prototype.isInside=function(pt){this.crossings=0;var rayEnv=new jsts.geom.Envelope(-Number.MAX_VALUE,Number.MAX_VALUE,pt.y,pt.y);this.interval.min=pt.y;this.interval.max=pt.y;var segs=this.tree.query(this.interval);var mcSelecter=new jsts.algorithm.MCPointInRing.MCSelecter(pt,this);for(var i=segs.iterator();i.hasNext();){var mc=i.next();this.testMonotoneChain(rayEnv,mcSelecter,mc)}if(this.crossings%2==1){return true}return false};jsts.algorithm.MCPointInRing.prototype.testMonotoneChain=function(rayEnv,mcSelecter,mc){mc.select(rayEnv,mcSelecter)};jsts.algorithm.MCPointInRing.prototype.testLineSegment=function(p,seg){var xInt,x1,y1,x2,y2,p1,p2;p1=seg.p0;p2=seg.p1;x1=p1.x-p.x;y1=p1.y-p.y;x2=p2.x-p.x;y2=p2.y-p.y;if(y1>0&&y2<=0||y2>0&&y1<=0){xInt=jsts.algorithm.RobustDeterminant.signOfDet2x2(x1,y1,x2,y2)/(y2-y1);if(0<xInt){this.crossings++}}};jsts.operation.valid.TopologyValidationError=function(errorType,pt){this.errorType=errorType;this.pt=null;if(pt!=null){this.pt=pt.clone()}};jsts.operation.valid.TopologyValidationError.HOLE_OUTSIDE_SHELL=2;jsts.operation.valid.TopologyValidationError.NESTED_HOLES=3;jsts.operation.valid.TopologyValidationError.DISCONNECTED_INTERIOR=4;jsts.operation.valid.TopologyValidationError.SELF_INTERSECTION=5;jsts.operation.valid.TopologyValidationError.RING_SELF_INTERSECTION=6;jsts.operation.valid.TopologyValidationError.NESTED_SHELLS=7;jsts.operation.valid.TopologyValidationError.DUPLICATE_RINGS=8;jsts.operation.valid.TopologyValidationError.TOO_FEW_POINTS=9;jsts.operation.valid.TopologyValidationError.INVALID_COORDINATE=10;jsts.operation.valid.TopologyValidationError.RING_NOT_CLOSED=11;jsts.operation.valid.TopologyValidationError.prototype.errMsg=["Topology Validation Error","Repeated Point","Hole lies outside shell","Holes are nested","Interior is disconnected","Self-intersection","Ring Self-intersection","Nested shells","Duplicate Rings","Too few distinct points in geometry component","Invalid Coordinate","Ring is not closed"];jsts.operation.valid.TopologyValidationError.prototype.getCoordinate=function(){return this.pt};jsts.operation.valid.TopologyValidationError.prototype.getErrorType=function(){return this.errorType};jsts.operation.valid.TopologyValidationError.prototype.getMessage=function(){return this.errMsg[this.errorType]};jsts.operation.valid.TopologyValidationError.prototype.toString=function(){var locStr="";if(this.pt!=null){locStr=" at or near point "+this.pt;return this.getMessage()+locStr}return locStr};(function(){jsts.geom.MultiPolygon=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.MultiPolygon.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiPolygon.constructor=jsts.geom.MultiPolygon;jsts.geom.MultiPolygon.prototype.getBoundary=function(){if(this.isEmpty()){return this.getFactory().createMultiLineString(null)}var allRings=[];for(var i=0;i<this.geometries.length;i++){var polygon=this.geometries[i];var rings=polygon.getBoundary();for(var j=0;j<rings.getNumGeometries();j++){allRings.push(rings.getGeometryN(j))}}return this.getFactory().createMultiLineString(allRings)};jsts.geom.MultiPolygon.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiPolygon.prototype.CLASS_NAME="jsts.geom.MultiPolygon"})();jsts.geom.CoordinateSequenceFilter=function(){};jsts.geom.CoordinateSequenceFilter.prototype.filter=jsts.abstractFunc;jsts.geom.CoordinateSequenceFilter.prototype.isDone=jsts.abstractFunc;jsts.geom.CoordinateSequenceFilter.prototype.isGeometryChanged=jsts.abstractFunc;(function(){var Interval=function(){this.min=0;this.max=0;if(arguments.length===1){var interval=arguments[0];this.init(interval.min,interval.max)}else if(arguments.length===2){this.init(arguments[0],arguments[1])}};Interval.prototype.init=function(min,max){this.min=min;this.max=max;if(min>max){this.min=max;this.max=min}};Interval.prototype.getMin=function(){return this.min};Interval.prototype.getMax=function(){return this.max};Interval.prototype.getWidth=function(){return this.max-this.min};Interval.prototype.expandToInclude=function(interval){if(interval.max>this.max){this.max=interval.max}if(interval.min<this.min){this.min=interval.min}};Interval.prototype.overlaps=function(){if(arguments.length===1){return this.overlapsInterval.apply(this,arguments)}else{return this.overlapsMinMax.apply(this,arguments)}};Interval.prototype.overlapsInterval=function(interval){return this.overlaps(interval.min,interval.max)};Interval.prototype.overlapsMinMax=function(min,max){if(this.min>max||this.max<min){return false}return true};Interval.prototype.contains=function(){var interval;if(arguments[0]instanceof jsts.index.bintree.Interval){interval=arguments[0];return this.containsMinMax(interval.min,interval.max)}else if(arguments.length===1){return this.containsPoint(arguments[0])}else{return this.containsMinMax(arguments[0],arguments[1])}};Interval.prototype.containsMinMax=function(min,max){return min>=this.min&&max<=this.max};Interval.prototype.containsPoint=function(p){return p>=this.min&&p<=this.max};jsts.index.bintree.Interval=Interval})();jsts.index.DoubleBits=function(){};jsts.index.DoubleBits.powerOf2=function(exp){return Math.pow(2,exp)};jsts.index.DoubleBits.exponent=function(d){return jsts.index.DoubleBits.CVTFWD(64,d)-1023};jsts.index.DoubleBits.CVTFWD=function(NumW,Qty){var Sign,Expo,Mant,Bin,nb01="";var Inf={32:{d:127,c:128,b:0,a:0},64:{d:32752,c:0,b:0,a:0}};var ExW={32:8,64:11}[NumW],MtW=NumW-ExW-1;if(!Bin){Sign=Qty<0||1/Qty<0;if(!isFinite(Qty)){Bin=Inf[NumW];if(Sign){Bin.d+=1<<NumW/4-1}Expo=Math.pow(2,ExW)-1;Mant=0}}if(!Bin){Expo={32:127,64:1023}[NumW];Mant=Math.abs(Qty);while(Mant>=2){Expo++;Mant/=2}while(Mant<1&&Expo>0){Expo--;Mant*=2}if(Expo<=0){Mant/=2;nb01="Zero or Denormal"}if(NumW===32&&Expo>254){nb01="Too big for Single";Bin={d:Sign?255:127,c:128,b:0,a:0};Expo=Math.pow(2,ExW)-1;Mant=0}}return Expo};(function(){var DoubleBits=jsts.index.DoubleBits;var Interval=jsts.index.bintree.Interval;var Key=function(interval){this.pt=0;this.level=0;this.computeKey(interval)};Key.computeLevel=function(interval){var dx=interval.getWidth(),level;level=DoubleBits.exponent(dx)+1;return level};Key.prototype.getPoint=function(){return this.pt};Key.prototype.getLevel=function(){return this.level};Key.prototype.getInterval=function(){return this.interval};Key.prototype.computeKey=function(itemInterval){this.level=Key.computeLevel(itemInterval);this.interval=new Interval;this.computeInterval(this.level,itemInterval);while(!this.interval.contains(itemInterval)){this.level+=1;this.computeInterval(this.level,itemInterval)}};Key.prototype.computeInterval=function(level,itemInterval){var size=DoubleBits.powerOf2(level);this.pt=Math.floor(itemInterval.getMin()/size)*size;this.interval.init(this.pt,this.pt+size)};jsts.index.bintree.Key=Key})();jsts.operation.buffer.SubgraphDepthLocater=function(subgraphs){this.subgraphs=[];this.seg=new jsts.geom.LineSegment;this.subgraphs=subgraphs};jsts.operation.buffer.SubgraphDepthLocater.prototype.subgraphs=null;jsts.operation.buffer.SubgraphDepthLocater.prototype.seg=null;jsts.operation.buffer.SubgraphDepthLocater.prototype.getDepth=function(p){var stabbedSegments=this.findStabbedSegments(p);if(stabbedSegments.length===0)return 0;stabbedSegments.sort();var ds=stabbedSegments[0];return ds.leftDepth};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments=function(stabbingRayLeftPt){if(arguments.length===3){this.findStabbedSegments2.apply(this,arguments);return}var stabbedSegments=[];for(var i=0;i<this.subgraphs.length;i++){var bsg=this.subgraphs[i];var env=bsg.getEnvelope();if(stabbingRayLeftPt.y<env.getMinY()||stabbingRayLeftPt.y>env.getMaxY())continue;this.findStabbedSegments2(stabbingRayLeftPt,bsg.getDirectedEdges(),stabbedSegments)}return stabbedSegments};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments2=function(stabbingRayLeftPt,dirEdges,stabbedSegments){if(arguments[1]instanceof jsts.geomgraph.DirectedEdge){this.findStabbedSegments3(stabbingRayLeftPt,dirEdges,stabbedSegments);return}for(var i=dirEdges.iterator();i.hasNext();){var de=i.next();if(!de.isForward())continue;this.findStabbedSegments3(stabbingRayLeftPt,de,stabbedSegments)}};jsts.operation.buffer.SubgraphDepthLocater.prototype.findStabbedSegments3=function(stabbingRayLeftPt,dirEdge,stabbedSegments){var pts=dirEdge.getEdge().getCoordinates();for(var i=0;i<pts.length-1;i++){this.seg.p0=pts[i];this.seg.p1=pts[i+1];if(this.seg.p0.y>this.seg.p1.y)this.seg.reverse();var maxx=Math.max(this.seg.p0.x,this.seg.p1.x);if(maxx<stabbingRayLeftPt.x)continue;if(this.seg.isHorizontal())continue;if(stabbingRayLeftPt.y<this.seg.p0.y||stabbingRayLeftPt.y>this.seg.p1.y)continue;if(jsts.algorithm.CGAlgorithms.computeOrientation(this.seg.p0,this.seg.p1,stabbingRayLeftPt)===jsts.algorithm.CGAlgorithms.RIGHT)continue;var depth=dirEdge.getDepth(jsts.geomgraph.Position.LEFT);if(!this.seg.p0.equals(pts[i]))depth=dirEdge.getDepth(jsts.geomgraph.Position.RIGHT);var ds=new jsts.operation.buffer.SubgraphDepthLocater.DepthSegment(this.seg,depth);stabbedSegments.push(ds)}};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment=function(seg,depth){this.upwardSeg=new jsts.geom.LineSegment(seg);this.leftDepth=depth};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.upwardSeg=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.leftDepth=null;jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareTo=function(obj){var other=obj;var orientIndex=this.upwardSeg.orientationIndex(other.upwardSeg);if(orientIndex===0)orientIndex=-1*other.upwardSeg.orientationIndex(upwardSeg);if(orientIndex!==0)return orientIndex;return this.compareX(this.upwardSeg,other.upwardSeg)};jsts.operation.buffer.SubgraphDepthLocater.DepthSegment.prototype.compareX=function(seg0,seg1){var compare0=seg0.p0.compareTo(seg1.p0);if(compare0!==0)return compare0;return seg0.p1.compareTo(seg1.p1)};jsts.noding.snapround.HotPixel=function(pt,scaleFactor,li){this.corner=[];this.originalPt=pt;this.pt=pt;this.scaleFactor=scaleFactor;this.li=li;if(this.scaleFactor!==1){this.pt=new jsts.geom.Coordinate(this.scale(pt.x),this.scale(pt.y));this.p0Scaled=new jsts.geom.Coordinate;this.p1Scaled=new jsts.geom.Coordinate}this.initCorners(this.pt)};jsts.noding.snapround.HotPixel.prototype.li=null;jsts.noding.snapround.HotPixel.prototype.pt=null;jsts.noding.snapround.HotPixel.prototype.originalPt=null;jsts.noding.snapround.HotPixel.prototype.ptScaled=null;jsts.noding.snapround.HotPixel.prototype.p0Scaled=null;jsts.noding.snapround.HotPixel.prototype.p1Scaled=null;jsts.noding.snapround.HotPixel.prototype.scaleFactor=undefined;jsts.noding.snapround.HotPixel.prototype.minx=undefined;jsts.noding.snapround.HotPixel.prototype.maxx=undefined;jsts.noding.snapround.HotPixel.prototype.miny=undefined;jsts.noding.snapround.HotPixel.prototype.maxy=undefined;jsts.noding.snapround.HotPixel.prototype.corner=null;jsts.noding.snapround.HotPixel.prototype.safeEnv=null;jsts.noding.snapround.HotPixel.prototype.getCoordinate=function(){return this.originalPt};jsts.noding.snapround.HotPixel.SAFE_ENV_EXPANSION_FACTOR=.75;jsts.noding.snapround.HotPixel.prototype.getSafeEnvelope=function(){if(this.safeEnv===null){var safeTolerance=jsts.noding.snapround.HotPixel.SAFE_ENV_EXPANSION_FACTOR/this.scaleFactor;this.safeEnv=new jsts.geom.Envelope(this.originalPt.x-safeTolerance,this.originalPt.x+safeTolerance,this.originalPt.y-safeTolerance,this.originalPt.y+safeTolerance)}return this.safeEnv};jsts.noding.snapround.HotPixel.prototype.initCorners=function(pt){var tolerance=.5;this.minx=pt.x-tolerance;this.maxx=pt.x+tolerance;this.miny=pt.y-tolerance;this.maxy=pt.y+tolerance;this.corner[0]=new jsts.geom.Coordinate(this.maxx,this.maxy);this.corner[1]=new jsts.geom.Coordinate(this.minx,this.maxy);this.corner[2]=new jsts.geom.Coordinate(this.minx,this.miny);this.corner[3]=new jsts.geom.Coordinate(this.maxx,this.miny)};jsts.noding.snapround.HotPixel.prototype.scale=function(val){return Math.round(val*this.scaleFactor)};jsts.noding.snapround.HotPixel.prototype.intersects=function(p0,p1){if(this.scaleFactor===1)return this.intersectsScaled(p0,p1);this.copyScaled(p0,this.p0Scaled);this.copyScaled(p1,this.p1Scaled);return this.intersectsScaled(this.p0Scaled,this.p1Scaled)};jsts.noding.snapround.HotPixel.prototype.copyScaled=function(p,pScaled){pScaled.x=this.scale(p.x);pScaled.y=this.scale(p.y)};jsts.noding.snapround.HotPixel.prototype.intersectsScaled=function(p0,p1){var segMinx=Math.min(p0.x,p1.x);var segMaxx=Math.max(p0.x,p1.x);var segMiny=Math.min(p0.y,p1.y);var segMaxy=Math.max(p0.y,p1.y);var isOutsidePixelEnv=this.maxx<segMinx||this.minx>segMaxx||this.maxy<segMiny||this.miny>segMaxy;if(isOutsidePixelEnv)return false;var intersects=this.intersectsToleranceSquare(p0,p1);jsts.util.Assert.isTrue(!(isOutsidePixelEnv&&intersects),"Found bad envelope test");return intersects};jsts.noding.snapround.HotPixel.prototype.intersectsToleranceSquare=function(p0,p1){var intersectsLeft=false;var intersectsBottom=false;this.li.computeIntersection(p0,p1,this.corner[0],this.corner[1]);if(this.li.isProper())return true;this.li.computeIntersection(p0,p1,this.corner[1],this.corner[2]);if(this.li.isProper())return true;if(this.li.hasIntersection())intersectsLeft=true;this.li.computeIntersection(p0,p1,this.corner[2],this.corner[3]);if(this.li.isProper())return true;if(this.li.hasIntersection())intersectsBottom=true;this.li.computeIntersection(p0,p1,this.corner[3],this.corner[0]);if(this.li.isProper())return true;if(intersectsLeft&&intersectsBottom)return true;if(p0.equals(this.pt))return true;if(p1.equals(this.pt))return true;return false};jsts.noding.snapround.HotPixel.prototype.intersectsPixelClosure=function(p0,p1){this.li.computeIntersection(p0,p1,this.corner[0],this.corner[1]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[1],this.corner[2]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[2],this.corner[3]);if(this.li.hasIntersection())return true;this.li.computeIntersection(p0,p1,this.corner[3],this.corner[0]);if(this.li.hasIntersection())return true;return false};jsts.noding.snapround.HotPixel.prototype.addSnappedNode=function(segStr,segIndex){var p0=segStr.getCoordinate(segIndex);var p1=segStr.getCoordinate(segIndex+1);if(this.intersects(p0,p1)){segStr.addIntersection(this.getCoordinate(),segIndex);return true}return false};jsts.operation.buffer.BufferInputLineSimplifier=function(inputLine){this.inputLine=inputLine};jsts.operation.buffer.BufferInputLineSimplifier.simplify=function(inputLine,distanceTol){var simp=new jsts.operation.buffer.BufferInputLineSimplifier(inputLine);return simp.simplify(distanceTol)};jsts.operation.buffer.BufferInputLineSimplifier.INIT=0;jsts.operation.buffer.BufferInputLineSimplifier.DELETE=1;jsts.operation.buffer.BufferInputLineSimplifier.KEEP=1;jsts.operation.buffer.BufferInputLineSimplifier.prototype.inputLine=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.distanceTol=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.isDeleted=null;jsts.operation.buffer.BufferInputLineSimplifier.prototype.angleOrientation=jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE;jsts.operation.buffer.BufferInputLineSimplifier.prototype.simplify=function(distanceTol){this.distanceTol=Math.abs(distanceTol);if(distanceTol<0)this.angleOrientation=jsts.algorithm.CGAlgorithms.CLOCKWISE;
this.isDeleted=[];this.isDeleted.length=this.inputLine.length;var isChanged=false;do{isChanged=this.deleteShallowConcavities()}while(isChanged);return this.collapseLine()};jsts.operation.buffer.BufferInputLineSimplifier.prototype.deleteShallowConcavities=function(){var index=1;var maxIndex=this.inputLine.length-1;var midIndex=this.findNextNonDeletedIndex(index);var lastIndex=this.findNextNonDeletedIndex(midIndex);var isChanged=false;while(lastIndex<this.inputLine.length){var isMiddleVertexDeleted=false;if(this.isDeletable(index,midIndex,lastIndex,this.distanceTol)){this.isDeleted[midIndex]=jsts.operation.buffer.BufferInputLineSimplifier.DELETE;isMiddleVertexDeleted=true;isChanged=true}if(isMiddleVertexDeleted)index=lastIndex;else index=midIndex;midIndex=this.findNextNonDeletedIndex(index);lastIndex=this.findNextNonDeletedIndex(midIndex)}return isChanged};jsts.operation.buffer.BufferInputLineSimplifier.prototype.findNextNonDeletedIndex=function(index){var next=index+1;while(next<this.inputLine.length&&this.isDeleted[next]===jsts.operation.buffer.BufferInputLineSimplifier.DELETE)next++;return next};jsts.operation.buffer.BufferInputLineSimplifier.prototype.collapseLine=function(){var coordList=[];for(var i=0;i<this.inputLine.length;i++){if(this.isDeleted[i]!==jsts.operation.buffer.BufferInputLineSimplifier.DELETE)coordList.push(this.inputLine[i])}return coordList};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isDeletable=function(i0,i1,i2,distanceTol){var p0=this.inputLine[i0];var p1=this.inputLine[i1];var p2=this.inputLine[i2];if(!this.isConcave(p0,p1,p2))return false;if(!this.isShallow(p0,p1,p2,distanceTol))return false;return this.isShallowSampled(p0,p1,i0,i2,distanceTol)};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallowConcavity=function(p0,p1,p2,distanceTol){var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,p2);var isAngleToSimplify=orientation===this.angleOrientation;if(!isAngleToSimplify)return false;var dist=jsts.algorithm.CGAlgorithms.distancePointLine(p1,p0,p2);return dist<distanceTol};jsts.operation.buffer.BufferInputLineSimplifier.NUM_PTS_TO_CHECK=10;jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallowSampled=function(p0,p2,i0,i2,distanceTol){var inc=parseInt((i2-i0)/jsts.operation.buffer.BufferInputLineSimplifier.NUM_PTS_TO_CHECK);if(inc<=0)inc=1;for(var i=i0;i<i2;i+=inc){if(!this.isShallow(p0,p2,this.inputLine[i],distanceTol))return false}return true};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isShallow=function(p0,p1,p2,distanceTol){var dist=jsts.algorithm.CGAlgorithms.distancePointLine(p1,p0,p2);return dist<distanceTol};jsts.operation.buffer.BufferInputLineSimplifier.prototype.isConcave=function(p0,p1,p2){var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(p0,p1,p2);var isConcave=orientation===this.angleOrientation;return isConcave};jsts.geomgraph.index.SweepLineEvent=function(x,obj,label){if(!(obj instanceof jsts.geomgraph.index.SweepLineEvent)){this.eventType=jsts.geomgraph.index.SweepLineEvent.INSERT;this.label=label;this.xValue=x;this.obj=obj;return}this.eventType=jsts.geomgraph.index.SweepLineEvent.DELETE;this.xValue=x;this.insertEvent=obj};jsts.geomgraph.index.SweepLineEvent.INSERT=1;jsts.geomgraph.index.SweepLineEvent.DELETE=2;jsts.geomgraph.index.SweepLineEvent.prototype.label=null;jsts.geomgraph.index.SweepLineEvent.prototype.xValue=null;jsts.geomgraph.index.SweepLineEvent.prototype.eventType=null;jsts.geomgraph.index.SweepLineEvent.prototype.insertEvent=null;jsts.geomgraph.index.SweepLineEvent.prototype.deleteEventIndex=null;jsts.geomgraph.index.SweepLineEvent.prototype.obj=null;jsts.geomgraph.index.SweepLineEvent.prototype.isInsert=function(){return this.eventType==jsts.geomgraph.index.SweepLineEvent.INSERT};jsts.geomgraph.index.SweepLineEvent.prototype.isDelete=function(){return this.eventType==jsts.geomgraph.index.SweepLineEvent.DELETE};jsts.geomgraph.index.SweepLineEvent.prototype.getInsertEvent=function(){return this.insertEvent};jsts.geomgraph.index.SweepLineEvent.prototype.getDeleteEventIndex=function(){return this.deleteEventIndex};jsts.geomgraph.index.SweepLineEvent.prototype.setDeleteEventIndex=function(deleteEventIndex){this.deleteEventIndex=deleteEventIndex};jsts.geomgraph.index.SweepLineEvent.prototype.getObject=function(){return this.obj};jsts.geomgraph.index.SweepLineEvent.prototype.isSameLabel=function(ev){if(this.label==null){return false}return this.label==ev.label};jsts.geomgraph.index.SweepLineEvent.prototype.compareTo=function(pe){if(this.xValue<pe.xValue){return-1}if(this.xValue>pe.xValue){return 1}if(this.eventType<pe.eventType){return-1}if(this.eventType>pe.eventType){return 1}return 0};jsts.geom.CoordinateList=function(coord,allowRepeated){this.array=[];allowRepeated=allowRepeated===undefined?true:allowRepeated;if(coord!==undefined){this.add(coord,allowRepeated)}};jsts.geom.CoordinateList.prototype=new javascript.util.ArrayList;jsts.geom.CoordinateList.prototype.iterator=null;jsts.geom.CoordinateList.prototype.remove=null;jsts.geom.CoordinateList.prototype.get=function(i){return this.array[i]};jsts.geom.CoordinateList.prototype.set=function(i,e){var o=this.array[i];this.array[i]=e;return o};jsts.geom.CoordinateList.prototype.size=function(){return this.array.length};jsts.geom.CoordinateList.prototype.add=function(){if(arguments.length>1){return this.addCoordinates.apply(this,arguments)}else{return this.array.push(arguments[0])}};jsts.geom.CoordinateList.prototype.addCoordinates=function(coord,allowRepeated,direction){if(coord instanceof jsts.geom.Coordinate){return this.addCoordinate.apply(this,arguments)}else if(typeof coord==="number"){return this.insertCoordinate.apply(this,arguments)}direction=direction||true;if(direction){for(var i=0;i<coord.length;i++){this.addCoordinate(coord[i],allowRepeated)}}else{for(var i=coord.length-1;i>=0;i--){this.addCoordinate(coord[i],allowRepeated)}}return true};jsts.geom.CoordinateList.prototype.addCoordinate=function(coord,allowRepeated){if(!allowRepeated){if(this.size()>=1){var last=this.get(this.size()-1);if(last.equals2D(coord))return}}this.add(coord)};jsts.geom.CoordinateList.prototype.insertCoordinate=function(index,coord,allowRepeated){if(!allowRepeated){var before=index>0?index-1:-1;if(before!==-1&&this.get(before).equals2D(coord)){return}var after=index<this.size()-1?index+1:-1;if(after!==-1&&this.get(after).equals2D(coord)){return}}this.array.splice(index,0,coord)};jsts.geom.CoordinateList.prototype.closeRing=function(){if(this.size()>0){this.addCoordinate(new jsts.geom.Coordinate(this.get(0)),false)}};jsts.geom.CoordinateList.prototype.toArray=function(){return this.array};jsts.geom.CoordinateList.prototype.toCoordinateArray=function(){return this.array};jsts.operation.buffer.OffsetSegmentGenerator=function(precisionModel,bufParams,distance){this.seg0=new jsts.geom.LineSegment;this.seg1=new jsts.geom.LineSegment;this.offset0=new jsts.geom.LineSegment;this.offset1=new jsts.geom.LineSegment;this.precisionModel=precisionModel;this.bufParams=bufParams;this.li=new jsts.algorithm.RobustLineIntersector;this.filletAngleQuantum=Math.PI/2/bufParams.getQuadrantSegments();if(this.bufParams.getQuadrantSegments()>=8&&this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.closingSegLengthFactor=jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR}this.init(distance)};jsts.operation.buffer.OffsetSegmentGenerator.OFFSET_SEGMENT_SEPARATION_FACTOR=.001;jsts.operation.buffer.OffsetSegmentGenerator.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR=.001;jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR=1e-6;jsts.operation.buffer.OffsetSegmentGenerator.MAX_CLOSING_SEG_LEN_FACTOR=80;jsts.operation.buffer.OffsetSegmentGenerator.prototype.maxCurveSegmentError=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.filletAngleQuantum=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.closingSegLengthFactor=1;jsts.operation.buffer.OffsetSegmentGenerator.prototype.segList=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.distance=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.precisionModel=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.bufParams=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.li=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.s2=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.seg1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset0=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.offset1=null;jsts.operation.buffer.OffsetSegmentGenerator.prototype.side=0;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=false;jsts.operation.buffer.OffsetSegmentGenerator.prototype.hasNarrowConcaveAngle=function(){return this.hasNarrowConcaveAngle};jsts.operation.buffer.OffsetSegmentGenerator.prototype.init=function(distance){this.distance=distance;this.maxCurveSegmentError=this.distance*(1-Math.cos(this.filletAngleQuantum/2));this.segList=new jsts.operation.buffer.OffsetSegmentString;this.segList.setPrecisionModel(this.precisionModel);this.segList.setMinimumVertexDistance(this.distance*jsts.operation.buffer.OffsetSegmentGenerator.CURVE_VERTEX_SNAP_DISTANCE_FACTOR)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.initSideSegments=function(s1,s2,side){this.s1=s1;this.s2=s2;this.side=side;this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.getCoordinates=function(){return this.segList.getCoordinates()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.closeRing=function(){this.segList.closeRing()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addSegments=function(pt,isForward){this.segList.addPts(pt,isForward)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFirstSegment=function(){this.segList.addPt(this.offset1.p0)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLastSegment=function(){this.segList.addPt(this.offset1.p1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addNextSegment=function(p,addStartPoint){this.s0=this.s1;this.s1=this.s2;this.s2=p;this.seg0.setCoordinates(this.s0,this.s1);this.computeOffsetSegment(this.seg0,this.side,this.distance,this.offset0);this.seg1.setCoordinates(this.s1,this.s2);this.computeOffsetSegment(this.seg1,this.side,this.distance,this.offset1);if(this.s1.equals(this.s2))return;var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(this.s0,this.s1,this.s2);var outsideTurn=orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE&&this.side===jsts.geomgraph.Position.LEFT||orientation===jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE&&this.side===jsts.geomgraph.Position.RIGHT;if(orientation==0){this.addCollinear(addStartPoint)}else if(outsideTurn){this.addOutsideTurn(orientation,addStartPoint)}else{this.addInsideTurn(orientation,addStartPoint)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addCollinear=function(addStartPoint){this.li.computeIntersection(this.s0,this.s1,this.s1,this.s2);var numInt=this.li.getIntersectionNum();if(numInt>=2){if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_BEVEL||this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_MITRE){if(addStartPoint)this.segList.addPt(this.offset0.p1);this.segList.addPt(this.offset1.p0)}else{this.addFillet(this.s1,this.offset0.p1,this.offset1.p0,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance)}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addOutsideTurn=function(orientation,addStartPoint){if(this.offset0.p1.distance(this.offset1.p0)<this.distance*jsts.operation.buffer.OffsetSegmentGenerator.OFFSET_SEGMENT_SEPARATION_FACTOR){this.segList.addPt(this.offset0.p1);return}if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_MITRE){this.addMitreJoin(this.s1,this.offset0,this.offset1,this.distance)}else if(this.bufParams.getJoinStyle()===jsts.operation.buffer.BufferParameters.JOIN_BEVEL){this.addBevelJoin(this.offset0,this.offset1)}else{if(addStartPoint)this.segList.addPt(this.offset0.p1);this.addFillet(this.s1,this.offset0.p1,this.offset1.p0,orientation,this.distance);this.segList.addPt(this.offset1.p0)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addInsideTurn=function(orientation,addStartPoint){this.li.computeIntersection(this.offset0.p0,this.offset0.p1,this.offset1.p0,this.offset1.p1);if(this.li.hasIntersection()){this.segList.addPt(this.li.getIntersection(0))}else{this.hasNarrowConcaveAngle=true;if(this.offset0.p1.distance(this.offset1.p0)<this.distance*jsts.operation.buffer.OffsetSegmentGenerator.INSIDE_TURN_VERTEX_SNAP_DISTANCE_FACTOR){this.segList.addPt(this.offset0.p1)}else{this.segList.addPt(this.offset0.p1);if(this.closingSegLengthFactor>0){var mid0=new jsts.geom.Coordinate((this.closingSegLengthFactor*this.offset0.p1.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset0.p1.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid0);var mid1=new jsts.geom.Coordinate((this.closingSegLengthFactor*this.offset1.p0.x+this.s1.x)/(this.closingSegLengthFactor+1),(this.closingSegLengthFactor*this.offset1.p0.y+this.s1.y)/(this.closingSegLengthFactor+1));this.segList.addPt(mid1)}else{this.segList.addPt(this.s1)}this.segList.addPt(this.offset1.p0)}}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.computeOffsetSegment=function(seg,side,distance,offset){var sideSign=side===jsts.geomgraph.Position.LEFT?1:-1;var dx=seg.p1.x-seg.p0.x;var dy=seg.p1.y-seg.p0.y;var len=Math.sqrt(dx*dx+dy*dy);var ux=sideSign*distance*dx/len;var uy=sideSign*distance*dy/len;offset.p0.x=seg.p0.x-uy;offset.p0.y=seg.p0.y+ux;offset.p1.x=seg.p1.x-uy;offset.p1.y=seg.p1.y+ux};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLineEndCap=function(p0,p1){var seg=new jsts.geom.LineSegment(p0,p1);var offsetL=new jsts.geom.LineSegment;this.computeOffsetSegment(seg,jsts.geomgraph.Position.LEFT,this.distance,offsetL);var offsetR=new jsts.geom.LineSegment;this.computeOffsetSegment(seg,jsts.geomgraph.Position.RIGHT,this.distance,offsetR);var dx=p1.x-p0.x;var dy=p1.y-p0.y;var angle=Math.atan2(dy,dx);switch(this.bufParams.getEndCapStyle()){case jsts.operation.buffer.BufferParameters.CAP_ROUND:this.segList.addPt(offsetL.p1);this.addFillet(p1,angle+Math.PI/2,angle-Math.PI/2,jsts.algorithm.CGAlgorithms.CLOCKWISE,this.distance);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_FLAT:this.segList.addPt(offsetL.p1);this.segList.addPt(offsetR.p1);break;case jsts.operation.buffer.BufferParameters.CAP_SQUARE:var squareCapSideOffset=new jsts.geom.Coordinate;squareCapSideOffset.x=Math.abs(this.distance)*Math.cos(angle);squareCapSideOffset.y=Math.abs(this.distance)*Math.sin(angle);var squareCapLOffset=new jsts.geom.Coordinate(offsetL.p1.x+squareCapSideOffset.x,offsetL.p1.y+squareCapSideOffset.y);var squareCapROffset=new jsts.geom.Coordinate(offsetR.p1.x+squareCapSideOffset.x,offsetR.p1.y+squareCapSideOffset.y);this.segList.addPt(squareCapLOffset);this.segList.addPt(squareCapROffset);break}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addMitreJoin=function(p,offset0,offset1,distance){var isMitreWithinLimit=true;var intPt=null;try{intPt=jsts.algorithm.HCoordinate.intersection(offset0.p0,offset0.p1,offset1.p0,offset1.p1);var mitreRatio=distance<=0?1:intPt.distance(p)/Math.abs(distance);if(mitreRatio>this.bufParams.getMitreLimit())this.isMitreWithinLimit=false}catch(e){if(e instanceof jsts.error.NotRepresentableError){intPt=new jsts.geom.Coordinate(0,0);this.isMitreWithinLimit=false}}if(isMitreWithinLimit){this.segList.addPt(intPt)}else{this.addLimitedMitreJoin(offset0,offset1,distance,bufParams.getMitreLimit())}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addLimitedMitreJoin=function(offset0,offset1,distance,mitreLimit){var basePt=this.seg0.p1;var ang0=jsts.algorithm.Angle.angle(basePt,this.seg0.p0);var ang1=jsts.algorithm.Angle.angle(basePt,this.seg1.p1);var angDiff=jsts.algorithm.Angle.angleBetweenOriented(this.seg0.p0,basePt,this.seg1.p1);var angDiffHalf=angDiff/2;var midAng=jsts.algorithm.Angle.normalize(ang0+angDiffHalf);var mitreMidAng=jsts.algorithm.Angle.normalize(midAng+Math.PI);var mitreDist=mitreLimit*distance;var bevelDelta=mitreDist*Math.abs(Math.sin(angDiffHalf));var bevelHalfLen=distance-bevelDelta;var bevelMidX=basePt.x+mitreDist*Math.cos(mitreMidAng);var bevelMidY=basePt.y+mitreDist*Math.sin(mitreMidAng);var bevelMidPt=new jsts.geom.Coordinate(bevelMidX,bevelMidY);var mitreMidLine=new jsts.geom.LineSegment(basePt,bevelMidPt);var bevelEndLeft=mitreMidLine.pointAlongOffset(1,bevelHalfLen);var bevelEndRight=mitreMidLine.pointAlongOffset(1,-bevelHalfLen);if(this.side==jsts.geomgraph.Position.LEFT){this.segList.addPt(bevelEndLeft);this.segList.addPt(bevelEndRight)}else{this.segList.addPt(bevelEndRight);this.segList.addPt(bevelEndLeft)}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addBevelJoin=function(offset0,offset1){this.segList.addPt(offset0.p1);this.segList.addPt(offset1.p0)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet=function(p,p0,p1,direction,radius){if(!(p1 instanceof jsts.geom.Coordinate)){this.addFillet2.apply(this,arguments);return}var dx0=p0.x-p.x;var dy0=p0.y-p.y;var startAngle=Math.atan2(dy0,dx0);var dx1=p1.x-p.x;var dy1=p1.y-p.y;var endAngle=Math.atan2(dy1,dx1);if(direction===jsts.algorithm.CGAlgorithms.CLOCKWISE){if(startAngle<=endAngle)startAngle+=2*Math.PI}else{if(startAngle>=endAngle)startAngle-=2*Math.PI}this.segList.addPt(p0);this.addFillet(p,startAngle,endAngle,direction,radius);this.segList.addPt(p1)};jsts.operation.buffer.OffsetSegmentGenerator.prototype.addFillet2=function(p,startAngle,endAngle,direction,radius){var directionFactor=direction===jsts.algorithm.CGAlgorithms.CLOCKWISE?-1:1;var totalAngle=Math.abs(startAngle-endAngle);var nSegs=parseInt(totalAngle/this.filletAngleQuantum+.5);if(nSegs<1)return;var initAngle,currAngleInc;initAngle=0;currAngleInc=totalAngle/nSegs;var currAngle=initAngle;var pt=new jsts.geom.Coordinate;while(currAngle<totalAngle){var angle=startAngle+directionFactor*currAngle;pt.x=p.x+radius*Math.cos(angle);pt.y=p.y+radius*Math.sin(angle);this.segList.addPt(pt);currAngle+=currAngleInc}};jsts.operation.buffer.OffsetSegmentGenerator.prototype.createCircle=function(p){var pt=new jsts.geom.Coordinate(p.x+this.distance,p.y);this.segList.addPt(pt);this.addFillet(p,0,2*Math.PI,-1,this.distance);this.segList.closeRing()};jsts.operation.buffer.OffsetSegmentGenerator.prototype.createSquare=function(p){this.segList.addPt(new jsts.geom.Coordinate(p.x+distance,p.y+distance));this.segList.addPt(new jsts.geom.Coordinate(p.x+distance,p.y-distance));this.segList.addPt(new jsts.geom.Coordinate(p.x-distance,p.y-distance));this.segList.addPt(new jsts.geom.Coordinate(p.x-distance,p.y+distance));this.segList.closeRing()};jsts.operation.overlay.MaximalEdgeRing=function(start,geometryFactory){jsts.geomgraph.EdgeRing.call(this,start,geometryFactory)};jsts.operation.overlay.MaximalEdgeRing.prototype=new jsts.geomgraph.EdgeRing;jsts.operation.overlay.MaximalEdgeRing.constructor=jsts.operation.overlay.MaximalEdgeRing;jsts.operation.overlay.MaximalEdgeRing.prototype.getNext=function(de){return de.getNext()};jsts.operation.overlay.MaximalEdgeRing.prototype.setEdgeRing=function(de,er){de.setEdgeRing(er)};jsts.operation.overlay.MaximalEdgeRing.prototype.linkDirectedEdgesForMinimalEdgeRings=function(){var de=this.startDe;do{var node=de.getNode();node.getEdges().linkMinimalDirectedEdges(this);de=de.getNext()}while(de!=this.startDe)};jsts.operation.overlay.MaximalEdgeRing.prototype.buildMinimalRings=function(){var minEdgeRings=[];var de=this.startDe;do{if(de.getMinEdgeRing()===null){var minEr=new jsts.operation.overlay.MinimalEdgeRing(de,this.geometryFactory);minEdgeRings.push(minEr)}de=de.getNext()}while(de!=this.startDe);return minEdgeRings};jsts.algorithm.CentroidPoint=function(){this.centSum=new jsts.geom.Coordinate};jsts.algorithm.CentroidPoint.prototype.ptCount=0;jsts.algorithm.CentroidPoint.prototype.centSum=null;jsts.algorithm.CentroidPoint.prototype.add=function(geom){if(geom instanceof jsts.geom.Point){this.add2(geom.getCoordinate())}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}};jsts.algorithm.CentroidPoint.prototype.add2=function(pt){this.ptCount+=1;this.centSum.x+=pt.x;this.centSum.y+=pt.y};jsts.algorithm.CentroidPoint.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;cent.x=this.centSum.x/this.ptCount;cent.y=this.centSum.y/this.ptCount;return cent};jsts.operation.distance.ConnectedElementLocationFilter=function(locations){this.locations=locations};jsts.operation.distance.ConnectedElementLocationFilter.prototype=new jsts.geom.GeometryFilter;jsts.operation.distance.ConnectedElementLocationFilter.prototype.locations=null;jsts.operation.distance.ConnectedElementLocationFilter.getLocations=function(geom){var locations=[];geom.apply(new jsts.operation.distance.ConnectedElementLocationFilter(locations));return locations};jsts.operation.distance.ConnectedElementLocationFilter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Point||geom instanceof jsts.geom.LineString||geom instanceof jsts.geom.Polygon)this.locations.push(new jsts.operation.distance.GeometryLocation(geom,0,geom.getCoordinate()))};jsts.geomgraph.index.MonotoneChainEdge=function(e){this.e=e;this.pts=e.getCoordinates();var mcb=new jsts.geomgraph.index.MonotoneChainIndexer;this.startIndex=mcb.getChainStartIndices(this.pts)};jsts.geomgraph.index.MonotoneChainEdge.prototype.e=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.pts=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.startIndex=null;jsts.geomgraph.index.MonotoneChainEdge.prototype.env1=new jsts.geom.Envelope;jsts.geomgraph.index.MonotoneChainEdge.prototype.env2=new jsts.geom.Envelope;jsts.geomgraph.index.MonotoneChainEdge.prototype.getCoordinates=function(){return this.pts};jsts.geomgraph.index.MonotoneChainEdge.prototype.getStartIndexes=function(){return this.startIndex};jsts.geomgraph.index.MonotoneChainEdge.prototype.getMinX=function(chainIndex){var x1=this.pts[this.startIndex[chainIndex]].x;var x2=this.pts[this.startIndex[chainIndex+1]].x;if(x1<x2){return x1}return x2};jsts.geomgraph.index.MonotoneChainEdge.prototype.getMaxX=function(chainIndex){var x1=this.pts[this.startIndex[chainIndex]].x;var x2=this.pts[this.startIndex[chainIndex+1]].x;if(x1>x2){return x1}return x2};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersects=function(mce,si){for(var i=0;i<this.startIndex.length-1;i++){for(var j=0;j<mce.startIndex.length-1;j++){this.computeIntersectsForChain(i,mce,j,si)}}};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersectsForChain=function(chainIndex0,mce,chainIndex1,si){this.computeIntersectsForChain2(this.startIndex[chainIndex0],this.startIndex[chainIndex0+1],mce,mce.startIndex[chainIndex1],mce.startIndex[chainIndex1+1],si)};jsts.geomgraph.index.MonotoneChainEdge.prototype.computeIntersectsForChain2=function(start0,end0,mce,start1,end1,ei){var p00=this.pts[start0];var p01=this.pts[end0];var p10=mce.pts[start1];var p11=mce.pts[end1];if(end0-start0==1&&end1-start1==1){ei.addIntersections(this.e,start0,mce.e,start1);return}this.env1.init(p00,p01);this.env2.init(p10,p11);if(!this.env1.intersects(this.env2)){return}var mid0=Math.floor((start0+end0)/2);var mid1=Math.floor((start1+end1)/2);if(start0<mid0){if(start1<mid1){this.computeIntersectsForChain2(start0,mid0,mce,start1,mid1,ei)}if(mid1<end1){this.computeIntersectsForChain2(start0,mid0,mce,mid1,end1,ei)}}if(mid0<end0){if(start1<mid1){this.computeIntersectsForChain2(mid0,end0,mce,start1,mid1,ei)}if(mid1<end1){this.computeIntersectsForChain2(mid0,end0,mce,mid1,end1,ei)}}};(function(){var ArrayList=javascript.util.ArrayList;jsts.operation.relate.EdgeEndBuilder=function(){};jsts.operation.relate.EdgeEndBuilder.prototype.computeEdgeEnds=function(edges){if(arguments.length==2){this.computeEdgeEnds2.apply(this,arguments);return}var l=new ArrayList;for(var i=edges;i.hasNext();){var e=i.next();this.computeEdgeEnds2(e,l)}return l};jsts.operation.relate.EdgeEndBuilder.prototype.computeEdgeEnds2=function(edge,l){var eiList=edge.getEdgeIntersectionList();eiList.addEndpoints();var it=eiList.iterator();var eiPrev=null;var eiCurr=null;if(!it.hasNext())return;var eiNext=it.next();do{eiPrev=eiCurr;eiCurr=eiNext;eiNext=null;if(it.hasNext())eiNext=it.next();if(eiCurr!==null){this.createEdgeEndForPrev(edge,l,eiCurr,eiPrev);this.createEdgeEndForNext(edge,l,eiCurr,eiNext)}}while(eiCurr!==null)};jsts.operation.relate.EdgeEndBuilder.prototype.createEdgeEndForPrev=function(edge,l,eiCurr,eiPrev){var iPrev=eiCurr.segmentIndex;if(eiCurr.dist===0){if(iPrev===0)return;iPrev--}var pPrev=edge.getCoordinate(iPrev);if(eiPrev!==null&&eiPrev.segmentIndex>=iPrev)pPrev=eiPrev.coord;var label=new jsts.geomgraph.Label(edge.getLabel());label.flip();var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pPrev,label);l.add(e)};jsts.operation.relate.EdgeEndBuilder.prototype.createEdgeEndForNext=function(edge,l,eiCurr,eiNext){var iNext=eiCurr.segmentIndex+1;if(iNext>=edge.getNumPoints()&&eiNext===null)return;var pNext=edge.getCoordinate(iNext);if(eiNext!==null&&eiNext.segmentIndex===eiCurr.segmentIndex)pNext=eiNext.coord;var e=new jsts.geomgraph.EdgeEnd(edge,eiCurr.coord,pNext,new jsts.geomgraph.Label(edge.getLabel()));l.add(e)}})();(function(){var ArrayList=javascript.util.ArrayList;var TreeSet=javascript.util.TreeSet;var CoordinateFilter=jsts.geom.CoordinateFilter;jsts.util.UniqueCoordinateArrayFilter=function(){this.treeSet=new TreeSet;this.list=new ArrayList};jsts.util.UniqueCoordinateArrayFilter.prototype=new CoordinateFilter;jsts.util.UniqueCoordinateArrayFilter.prototype.treeSet=null;jsts.util.UniqueCoordinateArrayFilter.prototype.list=null;jsts.util.UniqueCoordinateArrayFilter.prototype.getCoordinates=function(){return this.list.toArray()};jsts.util.UniqueCoordinateArrayFilter.prototype.filter=function(coord){if(!this.treeSet.contains(coord)){this.list.add(coord);this.treeSet.add(coord)}}})();(function(){var CGAlgorithms=jsts.algorithm.CGAlgorithms;var UniqueCoordinateArrayFilter=jsts.util.UniqueCoordinateArrayFilter;var Assert=jsts.util.Assert;var Stack=javascript.util.Stack;var ArrayList=javascript.util.ArrayList;var Arrays=javascript.util.Arrays;var RadialComparator=function(origin){this.origin=origin};RadialComparator.prototype.origin=null;RadialComparator.prototype.compare=function(o1,o2){var p1=o1;var p2=o2;return RadialComparator.polarCompare(this.origin,p1,p2)};RadialComparator.polarCompare=function(o,p,q){var dxp=p.x-o.x;var dyp=p.y-o.y;var dxq=q.x-o.x;var dyq=q.y-o.y;var orient=CGAlgorithms.computeOrientation(o,p,q);if(orient==CGAlgorithms.COUNTERCLOCKWISE)return 1;if(orient==CGAlgorithms.CLOCKWISE)return-1;var op=dxp*dxp+dyp*dyp;var oq=dxq*dxq+dyq*dyq;if(op<oq){return-1}if(op>oq){return 1}return 0};jsts.algorithm.ConvexHull=function(){if(arguments.length===1){var geometry=arguments[0];this.inputPts=jsts.algorithm.ConvexHull.extractCoordinates(geometry);this.geomFactory=geometry.getFactory()}else{this.pts=arguments[0];this.geomFactory=arguments[1]}};jsts.algorithm.ConvexHull.prototype.geomFactory=null;jsts.algorithm.ConvexHull.prototype.inputPts=null;jsts.algorithm.ConvexHull.extractCoordinates=function(geom){var filter=new UniqueCoordinateArrayFilter;geom.apply(filter);return filter.getCoordinates()};jsts.algorithm.ConvexHull.prototype.getConvexHull=function(){if(this.inputPts.length==0){return this.geomFactory.createGeometryCollection(null)}if(this.inputPts.length==1){return this.geomFactory.createPoint(this.inputPts[0])}if(this.inputPts.length==2){return this.geomFactory.createLineString(this.inputPts)}var reducedPts=this.inputPts;if(this.inputPts.length>50){reducedPts=this.reduce(this.inputPts)}var sortedPts=this.preSort(reducedPts);var cHS=this.grahamScan(sortedPts);var cH=cHS.toArray();return this.lineOrPolygon(cH)};jsts.algorithm.ConvexHull.prototype.reduce=function(inputPts){var polyPts=this.computeOctRing(inputPts);if(polyPts==null)return this.inputPts;var reducedSet=new javascript.util.TreeSet;for(var i=0;i<polyPts.length;i++){reducedSet.add(polyPts[i])}for(var i=0;i<inputPts.length;i++){if(!CGAlgorithms.isPointInRing(inputPts[i],polyPts)){reducedSet.add(inputPts[i])}}var reducedPts=reducedSet.toArray();if(reducedPts.length<3)return this.padArray3(reducedPts);return reducedPts};jsts.algorithm.ConvexHull.prototype.padArray3=function(pts){var pad=[];for(var i=0;i<pad.length;i++){if(i<pts.length){pad[i]=pts[i]}else pad[i]=pts[0]}return pad};jsts.algorithm.ConvexHull.prototype.preSort=function(pts){var t;for(var i=1;i<pts.length;i++){if(pts[i].y<pts[0].y||pts[i].y==pts[0].y&&pts[i].x<pts[0].x){t=pts[0];pts[0]=pts[i];pts[i]=t}}Arrays.sort(pts,1,pts.length,new RadialComparator(pts[0]));return pts};jsts.algorithm.ConvexHull.prototype.grahamScan=function(c){var p;var ps=new Stack;p=ps.push(c[0]);p=ps.push(c[1]);p=ps.push(c[2]);for(var i=3;i<c.length;i++){p=ps.pop();while(!ps.empty()&&CGAlgorithms.computeOrientation(ps.peek(),p,c[i])>0){p=ps.pop()}p=ps.push(p);p=ps.push(c[i])}p=ps.push(c[0]);return ps};jsts.algorithm.ConvexHull.prototype.isBetween=function(c1,c2,c3){if(CGAlgorithms.computeOrientation(c1,c2,c3)!==0){return false}if(c1.x!=c3.x){if(c1.x<=c2.x&&c2.x<=c3.x){return true}if(c3.x<=c2.x&&c2.x<=c1.x){return true}}if(c1.y!=c3.y){if(c1.y<=c2.y&&c2.y<=c3.y){return true}if(c3.y<=c2.y&&c2.y<=c1.y){return true}}return false};jsts.algorithm.ConvexHull.prototype.computeOctRing=function(inputPts){var octPts=this.computeOctPts(inputPts);var coordList=new jsts.geom.CoordinateList;coordList.add(octPts,false);if(coordList.size()<3){return null}coordList.closeRing();return coordList.toCoordinateArray()};jsts.algorithm.ConvexHull.prototype.computeOctPts=function(inputPts){var pts=[];for(var j=0;j<8;j++){pts[j]=inputPts[0]}for(var i=1;i<inputPts.length;i++){if(inputPts[i].x<pts[0].x){pts[0]=inputPts[i]}if(inputPts[i].x-inputPts[i].y<pts[1].x-pts[1].y){pts[1]=inputPts[i]}if(inputPts[i].y>pts[2].y){pts[2]=inputPts[i]}if(inputPts[i].x+inputPts[i].y>pts[3].x+pts[3].y){pts[3]=inputPts[i]}if(inputPts[i].x>pts[4].x){pts[4]=inputPts[i]}if(inputPts[i].x-inputPts[i].y>pts[5].x-pts[5].y){pts[5]=inputPts[i]}if(inputPts[i].y<pts[6].y){pts[6]=inputPts[i]}if(inputPts[i].x+inputPts[i].y<pts[7].x+pts[7].y){pts[7]=inputPts[i]}}return pts};jsts.algorithm.ConvexHull.prototype.lineOrPolygon=function(coordinates){coordinates=this.cleanRing(coordinates);if(coordinates.length==3){return this.geomFactory.createLineString([coordinates[0],coordinates[1]])}var linearRing=this.geomFactory.createLinearRing(coordinates);return this.geomFactory.createPolygon(linearRing,null)};jsts.algorithm.ConvexHull.prototype.cleanRing=function(original){Assert.equals(original[0],original[original.length-1]);var cleanedRing=new ArrayList;var previousDistinctCoordinate=null;for(var i=0;i<=original.length-2;i++){var currentCoordinate=original[i];var nextCoordinate=original[i+1];if(currentCoordinate.equals(nextCoordinate)){continue}if(previousDistinctCoordinate!=null&&this.isBetween(previousDistinctCoordinate,currentCoordinate,nextCoordinate)){continue}cleanedRing.add(currentCoordinate);previousDistinctCoordinate=currentCoordinate}cleanedRing.add(original[original.length-1]);var cleanedRingCoordinates=[];return cleanedRing.toArray(cleanedRingCoordinates)}})();jsts.algorithm.MinimumDiameter=function(inputGeom,isConvex){
this.convexHullPts=null;this.minBaseSeg=new jsts.geom.LineSegment;this.minWidthPt=null;this.minPtIndex=0;this.minWidth=0;jsts.algorithm.MinimumDiameter.inputGeom=inputGeom;jsts.algorithm.MinimumDiameter.isConvex=isConvex||false};jsts.algorithm.MinimumDiameter.inputGeom=null;jsts.algorithm.MinimumDiameter.isConvex=false;jsts.algorithm.MinimumDiameter.nextIndex=function(pts,index){index++;if(index>=pts.length){index=0}return index};jsts.algorithm.MinimumDiameter.computeC=function(a,b,p){return a*p.y-b*p.x};jsts.algorithm.MinimumDiameter.computeSegmentForLine=function(a,b,c){var p0;var p1;if(Math.abs(b)>Math.abs(a)){p0=new jsts.geom.Coordinate(0,c/b);p1=new jsts.geom.Coordinate(1,c/b-a/b)}else{p0=new jsts.geom.Coordinate(c/a,0);p1=new jsts.geom.Coordinate(c/a-b/a,1)}return new jsts.geom.LineSegment(p0,p1)};jsts.algorithm.MinimumDiameter.prototype.getLength=function(){this.computeMinimumDiameter();return this.minWidth};jsts.algorithm.MinimumDiameter.prototype.getWidthCoordinate=function(){this.computeMinimumDiameter();return this.minWidthPt};jsts.algorithm.MinimumDiameter.prototype.getSupportingSegment=function(){this.computeMinimumDiameter();var coord=[this.minBaseSeg.p0,this.minBaseSeg.p1];return jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createLineString(coord)};jsts.algorithm.MinimumDiameter.prototype.getDiameter=function(){this.computeMinimumDiameter();if(this.minWidthPt===null){return jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createLineString(null)}var basePt=this.minBaseSeg.project(this.minWidthPt);return jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createLineString([basePt,this.minWidthPt])};jsts.algorithm.MinimumDiameter.prototype.computeMinimumDiameter=function(){if(this.minWidthPt!==null){return}if(jsts.algorithm.MinimumDiameter.isConvex)this.computeWidthConvex(jsts.algorithm.MinimumDiameter.inputGeom);else{var convexGeom=new jsts.algorithm.ConvexHull(jsts.algorithm.MinimumDiameter.inputGeom).getConvexHull();this.computeWidthConvex(convexGeom)}};jsts.algorithm.MinimumDiameter.prototype.computeWidthConvex=function(convexGeom){if(convexGeom instanceof jsts.geom.Polygon){this.convexHullPts=convexGeom.getExteriorRing().getCoordinates()}else{this.convexHullPts=convexGeom.getCoordinates()}if(this.convexHullPts.length===0){this.minWidth=0;this.minWidthPt=null;this.minBaseSeg=null}else if(this.convexHullPts.length===1){this.minWidth=0;this.minWidthPt=this.convexHullPts[0];this.minBaseSeg.p0=this.convexHullPts[0];this.minBaseSeg.p1=this.convexHullPts[0]}else if(this.convexHullPts.length===2||this.convexHullPts.length===3){this.minWidth=0;this.minWidthPt=this.convexHullPts[0];this.minBaseSeg.p0=this.convexHullPts[0];this.minBaseSeg.p1=this.convexHullPts[1]}else{this.computeConvexRingMinDiameter(this.convexHullPts)}};jsts.algorithm.MinimumDiameter.prototype.computeConvexRingMinDiameter=function(pts){this.minWidth=Number.MAX_VALUE;var currMaxIndex=1;var seg=new jsts.geom.LineSegment;for(var i=0;i<pts.length-1;i++){seg.p0=pts[i];seg.p1=pts[i+1];currMaxIndex=this.findMaxPerpDistance(pts,seg,currMaxIndex)}};jsts.algorithm.MinimumDiameter.prototype.findMaxPerpDistance=function(pts,seg,startIndex){var maxPerpDistance=seg.distancePerpendicular(pts[startIndex]);var nextPerpDistance=maxPerpDistance;var maxIndex=startIndex;var nextIndex=maxIndex;while(nextPerpDistance>=maxPerpDistance){maxPerpDistance=nextPerpDistance;maxIndex=nextIndex;nextIndex=jsts.algorithm.MinimumDiameter.nextIndex(pts,maxIndex);nextPerpDistance=seg.distancePerpendicular(pts[nextIndex])}if(maxPerpDistance<this.minWidth){this.minPtIndex=maxIndex;this.minWidth=maxPerpDistance;this.minWidthPt=pts[this.minPtIndex];this.minBaseSeg=new jsts.geom.LineSegment(seg)}return maxIndex};jsts.algorithm.MinimumDiameter.prototype.getMinimumRectangle=function(){this.computeMinimumDiameter();if(this.minWidth===0){if(this.minBaseSeg.p0.equals2D(this.minBaseSeg.p1)){return jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createPoint(this.minBaseSeg.p0)}return this.minBaseSeg.toGeometry(jsts.algorithm.MinimumDiameter.inputGeom.getFactory())}var dx=this.minBaseSeg.p1.x-this.minBaseSeg.p0.x;var dy=this.minBaseSeg.p1.y-this.minBaseSeg.p0.y;var minPara=Number.MAX_VALUE;var maxPara=-Number.MAX_VALUE;var minPerp=Number.MAX_VALUE;var maxPerp=-Number.MAX_VALUE;for(var i=0;i<this.convexHullPts.length;i++){var paraC=jsts.algorithm.MinimumDiameter.computeC(dx,dy,this.convexHullPts[i]);if(paraC>maxPara)maxPara=paraC;if(paraC<minPara)minPara=paraC;var perpC=jsts.algorithm.MinimumDiameter.computeC(-dy,dx,this.convexHullPts[i]);if(perpC>maxPerp)maxPerp=perpC;if(perpC<minPerp)minPerp=perpC}var maxPerpLine=jsts.algorithm.MinimumDiameter.computeSegmentForLine(-dx,-dy,maxPerp);var minPerpLine=jsts.algorithm.MinimumDiameter.computeSegmentForLine(-dx,-dy,minPerp);var maxParaLine=jsts.algorithm.MinimumDiameter.computeSegmentForLine(-dy,dx,maxPara);var minParaLine=jsts.algorithm.MinimumDiameter.computeSegmentForLine(-dy,dx,minPara);var p0=maxParaLine.lineIntersection(maxPerpLine);var p1=minParaLine.lineIntersection(maxPerpLine);var p2=minParaLine.lineIntersection(minPerpLine);var p3=maxParaLine.lineIntersection(minPerpLine);var shell=jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createLinearRing([p0,p1,p2,p3,p0]);return jsts.algorithm.MinimumDiameter.inputGeom.getFactory().createPolygon(shell,null)};(function(){jsts.io.GeoJSONParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.geometryTypes=["Point","MultiPoint","LineString","MultiLineString","Polygon","MultiPolygon"]};jsts.io.GeoJSONParser.prototype.read=function(json){var obj;if(typeof json==="string"){obj=JSON.parse(json)}else{obj=json}var type=obj.type;if(!this.parse[type]){throw new Error("Unknown GeoJSON type: "+obj.type)}if(this.geometryTypes.indexOf(type)!=-1){return this.parse[type].apply(this,[obj.coordinates])}else if(type==="GeometryCollection"){return this.parse[type].apply(this,[obj.geometries])}return this.parse[type].apply(this,[obj])};jsts.io.GeoJSONParser.prototype.parse={Feature:function(obj){var feature={};for(var key in obj){feature[key]=obj[key]}if(obj.geometry){var type=obj.geometry.type;if(!this.parse[type]){throw new Error("Unknown GeoJSON type: "+obj.type)}feature.geometry=this.read(obj.geometry)}if(obj.bbox){feature.bbox=this.parse.bbox.apply(this,[obj.bbox])}return feature},FeatureCollection:function(obj){var featureCollection={};if(obj.features){featureCollection.features=[];for(var i=0;i<obj.features.length;++i){featureCollection.features.push(this.read(obj.features[i]))}}if(obj.bbox){featureCollection.bbox=this.parse.bbox.apply(this,[obj.bbox])}return featureCollection},coordinates:function(array){var coordinates=[];for(var i=0;i<array.length;++i){var sub=array[i];coordinates.push(new jsts.geom.Coordinate(sub[0],sub[1]))}return coordinates},bbox:function(array){return this.geometryFactory.createLinearRing([new jsts.geom.Coordinate(array[0],array[1]),new jsts.geom.Coordinate(array[2],array[1]),new jsts.geom.Coordinate(array[2],array[3]),new jsts.geom.Coordinate(array[0],array[3]),new jsts.geom.Coordinate(array[0],array[1])])},Point:function(array){var coordinate=new jsts.geom.Coordinate(array[0],array[1]);return this.geometryFactory.createPoint(coordinate)},MultiPoint:function(array){var points=[];for(var i=0;i<array.length;++i){points.push(this.parse.Point.apply(this,[array[i]]))}return this.geometryFactory.createMultiPoint(points)},LineString:function(array){var coordinates=this.parse.coordinates.apply(this,[array]);return this.geometryFactory.createLineString(coordinates)},MultiLineString:function(array){var lineStrings=[];for(var i=0;i<array.length;++i){lineStrings.push(this.parse.LineString.apply(this,[array[i]]))}return this.geometryFactory.createMultiLineString(lineStrings)},Polygon:function(array){var shellCoordinates=this.parse.coordinates.apply(this,[array[0]]);var shell=this.geometryFactory.createLinearRing(shellCoordinates);var holes=[];for(var i=1;i<array.length;++i){var hole=array[i];var coordinates=this.parse.coordinates.apply(this,[hole]);var linearRing=this.geometryFactory.createLinearRing(coordinates);holes.push(linearRing)}return this.geometryFactory.createPolygon(shell,holes)},MultiPolygon:function(array){var polygons=[];for(var i=0;i<array.length;++i){var polygon=array[i];polygons.push(this.parse.Polygon.apply(this,[polygon]))}return this.geometryFactory.createMultiPolygon(polygons)},GeometryCollection:function(array){var geometries=[];for(var i=0;i<array.length;++i){var geometry=array[i];geometries.push(this.read(geometry))}return this.geometryFactory.createGeometryCollection(geometries)}};jsts.io.GeoJSONParser.prototype.write=function(geometry){var type=geometry.CLASS_NAME.slice(10);if(!this.extract[type]){throw new Error("Geometry is not supported")}return this.extract[type].apply(this,[geometry])};jsts.io.GeoJSONParser.prototype.extract={coordinate:function(coordinate){return[coordinate.x,coordinate.y]},Point:function(point){var array=this.extract.coordinate.apply(this,[point.coordinate]);return{type:"Point",coordinates:array}},MultiPoint:function(multipoint){var array=[];for(var i=0;i<multipoint.geometries.length;++i){var point=multipoint.geometries[i];var geoJson=this.extract.Point.apply(this,[point]);array.push(geoJson.coordinates)}return{type:"MultiPoint",coordinates:array}},LineString:function(linestring){var array=[];for(var i=0;i<linestring.points.length;++i){var coordinate=linestring.points[i];array.push(this.extract.coordinate.apply(this,[coordinate]))}return{type:"LineString",coordinates:array}},MultiLineString:function(multilinestring){var array=[];for(var i=0;i<multilinestring.geometries.length;++i){var linestring=multilinestring.geometries[i];var geoJson=this.extract.LineString.apply(this,[linestring]);array.push(geoJson.coordinates)}return{type:"MultiLineString",coordinates:array}},Polygon:function(polygon){var array=[];var shellGeoJson=this.extract.LineString.apply(this,[polygon.shell]);array.push(shellGeoJson.coordinates);for(var i=0;i<polygon.holes.length;++i){var hole=polygon.holes[i];var holeGeoJson=this.extract.LineString.apply(this,[hole]);array.push(holeGeoJson.coordinates)}return{type:"Polygon",coordinates:array}},MultiPolygon:function(multipolygon){var array=[];for(var i=0;i<multipolygon.geometries.length;++i){var polygon=multipolygon.geometries[i];var geoJson=this.extract.Polygon.apply(this,[polygon]);array.push(geoJson.coordinates)}return{type:"MultiPolygon",coordinates:array}},GeometryCollection:function(collection){var array=[];for(var i=0;i<collection.geometries.length;++i){var geometry=collection.geometries[i];var type=geometry.CLASS_NAME.slice(10);array.push(this.extract[type].apply(this,[geometry]))}return{type:"GeometryCollection",geometries:array}}}})();jsts.triangulate.quadedge.Vertex=function(){if(arguments.length===1){this.initFromCoordinate(arguments[0])}else{this.initFromXY(arguments[0],arguments[1])}};jsts.triangulate.quadedge.Vertex.LEFT=0;jsts.triangulate.quadedge.Vertex.RIGHT=1;jsts.triangulate.quadedge.Vertex.BEYOND=2;jsts.triangulate.quadedge.Vertex.BEHIND=3;jsts.triangulate.quadedge.Vertex.BETWEEN=4;jsts.triangulate.quadedge.Vertex.ORIGIN=5;jsts.triangulate.quadedge.Vertex.DESTINATION=6;jsts.triangulate.quadedge.Vertex.prototype.initFromXY=function(x,y){this.p=new jsts.geom.Coordinate(x,y)};jsts.triangulate.quadedge.Vertex.prototype.initFromCoordinate=function(_p){this.p=new jsts.geom.Coordinate(_p)};jsts.triangulate.quadedge.Vertex.prototype.getX=function(){return this.p.x};jsts.triangulate.quadedge.Vertex.prototype.getY=function(){return this.p.y};jsts.triangulate.quadedge.Vertex.prototype.getZ=function(){return this.p.z};jsts.triangulate.quadedge.Vertex.prototype.setZ=function(z){this.p.z=z};jsts.triangulate.quadedge.Vertex.prototype.getCoordinate=function(){return this.p};jsts.triangulate.quadedge.Vertex.prototype.toString=function(){return"POINT ("+this.p.x+" "+this.p.y+")"};jsts.triangulate.quadedge.Vertex.prototype.equals=function(){if(arguments.length===1){return this.equalsExact(arguments[0])}else{return this.equalsWithTolerance(arguments[0],arguments[1])}};jsts.triangulate.quadedge.Vertex.prototype.equalsExact=function(other){return this.p.x===other.getX()&&this.p.y===other.getY()};jsts.triangulate.quadedge.Vertex.prototype.equalsWithTolerance=function(other,tolerance){return this.p.distance(other.getCoordinate())<tolerance};jsts.triangulate.quadedge.Vertex.prototype.classify=function(p0,p1){var p2,a,b,sa;p2=this;a=p1.sub(p0);b=p2.sub(p0);sa=a.crossProduct(b);if(sa>0){return jsts.triangulate.quadedge.Vertex.LEFT}if(sa<0){return jsts.triangulate.quadedge.Vertex.RIGHT}if(a.getX()*b.getX()<0||a.getY()*b.getY()<0){return jsts.triangulate.quadedge.Vertex.BEHIND}if(a.magn()<b.magn()){return jsts.triangulate.quadedge.Vertex.BEYOND}if(p0.equals(p2)){return jsts.triangulate.quadedge.Vertex.ORIGIN}if(p1.equals(p2)){return jsts.triangulate.quadedge.Vertex.DESTINATION}return jsts.triangulate.quadedge.Vertex.BETWEEN};jsts.triangulate.quadedge.Vertex.prototype.crossProduct=function(v){return this.p.x*v.getY()-this.p.y*v.getX()};jsts.triangulate.quadedge.Vertex.prototype.dot=function(v){return this.p.x*v.getX()+this.p.y*v.getY()};jsts.triangulate.quadedge.Vertex.prototype.times=function(c){return new jsts.triangulate.quadedge.Vertex(c*this.p.x,c*this.p.y)};jsts.triangulate.quadedge.Vertex.prototype.sum=function(v){return new jsts.triangulate.quadedge.Vertex(this.p.x+v.getX(),this.p.y+v.getY())};jsts.triangulate.quadedge.Vertex.prototype.sub=function(v){return new jsts.triangulate.quadedge.Vertex(this.p.x-v.getX(),this.p.y-v.getY())};jsts.triangulate.quadedge.Vertex.prototype.magn=function(){return Math.sqrt(this.p.x*this.p.x+this.p.y*this.p.y)};jsts.triangulate.quadedge.Vertex.prototype.cross=function(){return new Vertex(this.p.y,-this.p.x)};jsts.triangulate.quadedge.Vertex.prototype.isInCircle=function(a,b,c){return jsts.triangulate.quadedge.TrianglePredicate.isInCircleRobust(a.p,b.p,c.p,this.p)};jsts.triangulate.quadedge.Vertex.prototype.isCCW=function(b,c){return(b.p.x-this.p.x)*(c.p.y-this.p.y)-(b.p.y-this.p.y)*(c.p.x-this.p.x)>0};jsts.triangulate.quadedge.Vertex.prototype.rightOf=function(e){return this.isCCW(e.dest(),e.orig())};jsts.triangulate.quadedge.Vertex.prototype.leftOf=function(e){return this.isCCW(e.orig(),e.dest())};jsts.triangulate.quadedge.Vertex.prototype.bisector=function(a,b){var dx,dy,l1,l2;dx=b.getX()-a.getX();dy=b.getY()-a.getY();l1=new jsts.algorithm.HCoordinate(a.getX()+dx/2,a.getY()+dy/2,1);l2=new jsts.algorithm.HCoordinate(a.getX()-dy+dx/2,a.getY()+dx+dy/2,1);return new jsts.algorithm.HCoordinate(l1,l2)};jsts.triangulate.quadedge.Vertex.prototype.distance=function(v1,v2){return v1.p.distance(v2.p)};jsts.triangulate.quadedge.Vertex.prototype.circumRadiusRatio=function(b,c){var x,radius,edgeLength,el;x=this.circleCenter(b,c);radius=this.distance(x,b);edgeLength=this.distance(this,b);el=this.distance(b,c);if(el<edgeLength){edgeLength=el}el=this.distance(c,this);if(el<edgeLength){edgeLength=el}return radius/edgeLength};jsts.triangulate.quadedge.Vertex.prototype.midPoint=function(a){var xm,ym;xm=(this.p.x+a.getX())/2;ym=(this.p.y+a.getY())/2;return new jsts.triangulate.quadedge.Vertex(xm,ym)};jsts.triangulate.quadedge.Vertex.prototype.circleCenter=function(b,c){var a,cab,cbc,hcc,cc;a=new jsts.triangulate.quadedge.Vertex(this.getX(),this.getY());cab=this.bisector(a,b);cbc=this.bisector(b,c);hcc=new jsts.algorithm.HCoordinate(cab,cbc);cc=null;try{cc=new jsts.triangulate.quadedge.Vertex(hcc.getX(),hcc.getY())}catch(err){}return cc};jsts.operation.valid.IsValidOp=function(parentGeometry){this.parentGeometry=parentGeometry;this.isSelfTouchingRingFormingHoleValid=false;this.validErr=null};jsts.operation.valid.IsValidOp.isValid=function(arg){if(arguments[0]instanceof jsts.geom.Coordinate){if(isNaN(arg.x)){return false}if(!isFinite(arg.x)&&!isNaN(arg.x)){return false}if(isNaN(arg.y)){return false}if(!isFinite(arg.y)&&!isNaN(arg.y)){return false}return true}else{var isValidOp=new jsts.operation.valid.IsValidOp(arg);return isValidOp.isValid()}};jsts.operation.valid.IsValidOp.findPtNotNode=function(testCoords,searchRing,graph){var searchEdge=graph.findEdge(searchRing);var eiList=searchEdge.getEdgeIntersectionList();for(var i=0;i<testCoords.length;i++){var pt=testCoords[i];if(!eiList.isIntersection(pt)){return pt}}return null};jsts.operation.valid.IsValidOp.prototype.setSelfTouchingRingFormingHoleValid=function(isValid){this.isSelfTouchingRingFormingHoleValid=isValid};jsts.operation.valid.IsValidOp.prototype.isValid=function(){this.checkValid(this.parentGeometry);return this.validErr==null};jsts.operation.valid.IsValidOp.prototype.getValidationError=function(){this.checkValid(this.parentGeometry);return this.validErr};jsts.operation.valid.IsValidOp.prototype.checkValid=function(g){this.validErr=null;if(g.isEmpty()){return}if(g instanceof jsts.geom.Point){this.checkValidPoint(g)}else if(g instanceof jsts.geom.MultiPoint){this.checkValidMultiPoint(g)}else if(g instanceof jsts.geom.LinearRing){this.checkValidLinearRing(g)}else if(g instanceof jsts.geom.LineString){this.checkValidLineString(g)}else if(g instanceof jsts.geom.Polygon){this.checkValidPolygon(g)}else if(g instanceof jsts.geom.MultiPolygon){this.checkValidMultiPolygon(g)}else if(g instanceof jsts.geom.GeometryCollection){this.checkValidGeometryCollection(g)}else{throw g.constructor}};jsts.operation.valid.IsValidOp.prototype.checkValidPoint=function(g){this.checkInvalidCoordinates(g.getCoordinates())};jsts.operation.valid.IsValidOp.prototype.checkValidMultiPoint=function(g){this.checkInvalidCoordinates(g.getCoordinates())};jsts.operation.valid.IsValidOp.prototype.checkValidLineString=function(g){this.checkInvalidCoordinates(g.getCoordinates());if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidLinearRing=function(g){this.checkInvalidCoordinates(g.getCoordinates());if(this.validErr!=null){return}this.checkClosedRing(g);if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}var li=new jsts.algorithm.RobustLineIntersector;graph.computeSelfNodes(li,true);this.checkNoSelfIntersectingRings(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidPolygon=function(g){this.checkInvalidCoordinates(g);if(this.validErr!=null){return}this.checkClosedRings(g);if(this.validErr!=null){return}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}this.checkConsistentArea(graph);if(this.validErr!=null){return}if(!this.isSelfTouchingRingFormingHoleValid){this.checkNoSelfIntersectingRings(graph);if(this.validErr!=null){return}}this.checkHolesInShell(g,graph);if(this.validErr!=null){return}this.checkHolesNotNested(g,graph);if(this.validErr!=null){return}this.checkConnectedInteriors(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidMultiPolygon=function(g){var il=g.getNumGeometries();for(var i=0;i<il;i++){var p=g.getGeometryN(i);this.checkInvalidCoordinates(p);if(this.validErr!=null){return}this.checkClosedRings(p);if(this.validErr!=null){return}}var graph=new jsts.geomgraph.GeometryGraph(0,g);this.checkTooFewPoints(graph);if(this.validErr!=null){return}this.checkConsistentArea(graph);if(this.validErr!=null){return}if(!this.isSelfTouchingRingFormingHoleValid){this.checkNoSelfIntersectingRings(graph);if(this.validErr!=null){return}}for(var i=0;i<g.getNumGeometries();i++){var p=g.getGeometryN(i);this.checkHolesInShell(p,graph);if(this.validErr!=null){return}}for(var i=0;i<g.getNumGeometries();i++){var p=g.getGeometryN(i);this.checkHolesNotNested(p,graph);if(this.validErr!=null){return}}this.checkShellsNotNested(g,graph);if(this.validErr!=null){return}this.checkConnectedInteriors(graph)};jsts.operation.valid.IsValidOp.prototype.checkValidGeometryCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.checkValid(g);if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkInvalidCoordinates=function(arg){if(arg instanceof jsts.geom.Polygon){var poly=arg;this.checkInvalidCoordinates(poly.getExteriorRing().getCoordinates());if(this.validErr!=null){return}for(var i=0;i<poly.getNumInteriorRing();i++){this.checkInvalidCoordinates(poly.getInteriorRingN(i).getCoordinates());if(this.validErr!=null){return}}}else{var coords=arg;for(var i=0;i<coords.length;i++){if(!jsts.operation.valid.IsValidOp.isValid(coords[i])){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.INVALID_COORDINATE,coords[i]);return}}}};jsts.operation.valid.IsValidOp.prototype.checkClosedRings=function(poly){this.checkClosedRing(poly.getExteriorRing());if(this.validErr!=null){return}for(var i=0;i<poly.getNumInteriorRing();i++){this.checkClosedRing(poly.getInteriorRingN(i));if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkClosedRing=function(ring){if(!ring.isClosed()){var pt=null;if(ring.getNumPoints()>=1){pt=ring.getCoordinateN(0)}this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.RING_NOT_CLOSED,pt)}};jsts.operation.valid.IsValidOp.prototype.checkTooFewPoints=function(graph){if(graph.hasTooFewPoints){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.TOO_FEW_POINTS,graph.getInvalidPoint());return}};jsts.operation.valid.IsValidOp.prototype.checkConsistentArea=function(graph){var cat=new jsts.operation.valid.ConsistentAreaTester(graph);var isValidArea=cat.isNodeConsistentArea();if(!isValidArea){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.SELF_INTERSECTION,cat.getInvalidPoint());return}if(cat.hasDuplicateRings()){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.DUPLICATE_RINGS,cat.getInvalidPoint())}};jsts.operation.valid.IsValidOp.prototype.checkNoSelfIntersectingRings=function(graph){for(var i=graph.getEdgeIterator();i.hasNext();){var e=i.next();this.checkNoSelfIntersectingRing(e.getEdgeIntersectionList());if(this.validErr!=null){return}}};jsts.operation.valid.IsValidOp.prototype.checkNoSelfIntersectingRing=function(eiList){var nodeSet=[];var isFirst=true;for(var i=eiList.iterator();i.hasNext();){var ei=i.next();if(isFirst){isFirst=false;continue}if(nodeSet.indexOf(ei.coord)>=0){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.RING_SELF_INTERSECTION,ei.coord);return}else{nodeSet.push(ei.coord)}}};jsts.operation.valid.IsValidOp.prototype.checkHolesInShell=function(p,graph){var shell=p.getExteriorRing();var pir=new jsts.algorithm.MCPointInRing(shell);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);var holePt=jsts.operation.valid.IsValidOp.findPtNotNode(hole.getCoordinates(),shell,graph);if(holePt==null){return}var outside=!pir.isInside(holePt);if(outside){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.HOLE_OUTSIDE_SHELL,holePt);return}}};jsts.operation.valid.IsValidOp.prototype.checkHolesNotNested=function(p,graph){var nestedTester=new jsts.operation.valid.IndexedNestedRingTester(graph);for(var i=0;i<p.getNumInteriorRing();i++){var innerHole=p.getInteriorRingN(i);nestedTester.add(innerHole)}var isNonNested=nestedTester.isNonNested();if(!isNonNested){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_HOLES,nestedTester.getNestedPoint())}};jsts.operation.valid.IsValidOp.prototype.checkShellsNotNested=function(mp,graph){for(var i=0;i<mp.getNumGeometries();i++){var p=mp.getGeometryN(i);var shell=p.getExteriorRing();for(var j=0;j<mp.getNumGeometries();j++){if(i==j){continue}var p2=mp.getGeometryN(j);this.checkShellNotNested(shell,p2,graph);if(this.validErr!=null){return}}}};jsts.operation.valid.IsValidOp.prototype.checkShellNotNested=function(shell,p,graph){var shellPts=shell.getCoordinates();var polyShell=p.getExteriorRing();var polyPts=polyShell.getCoordinates();var shellPt=jsts.operation.valid.IsValidOp.findPtNotNode(shellPts,polyShell,graph);if(shellPt==null){return}var insidePolyShell=jsts.algorithm.CGAlgorithms.isPointInRing(shellPt,polyPts);if(!insidePolyShell){return}if(p.getNumInteriorRing()<=0){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_SHELLS,shellPt);return}var badNestedPt=null;for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);badNestedPt=this.checkShellInsideHole(shell,hole,graph);if(badNestedPt==null){return}}this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.NESTED_SHELLS,badNestedPt)};jsts.operation.valid.IsValidOp.prototype.checkShellInsideHole=function(shell,hole,graph){var shellPts=shell.getCoordinates();var holePts=hole.getCoordinates();var shellPt=jsts.operation.valid.IsValidOp.findPtNotNode(shellPts,hole,graph);if(shellPt!=null){var insideHole=jsts.algorithm.CGAlgorithms.isPointInRing(shellPt,holePts);if(!insideHole){return shellPt}}var holePt=jsts.operation.valid.IsValidOp.findPtNotNode(holePts,shell,graph);if(holePt!=null){var insideShell=jsts.algorithm.CGAlgorithms.isPointInRing(holePt,shellPts);if(insideShell){return holePt}return null}jsts.util.Assert.shouldNeverReachHere("points in shell and hole appear to be equal");return null};jsts.operation.valid.IsValidOp.prototype.checkConnectedInteriors=function(graph){var cit=new jsts.operation.valid.ConnectedInteriorTester(graph);if(!cit.isInteriorsConnected()){this.validErr=new jsts.operation.valid.TopologyValidationError(jsts.operation.valid.TopologyValidationError.DISCONNECTED_INTERIOR,cit.getCoordinate())}};jsts.algorithm.RobustDeterminant=function(){};jsts.algorithm.RobustDeterminant.signOfDet2x2=function(x1,y1,x2,y2){var sign,swap,k,count;count=0;sign=1;if(x1===0||y2===0){if(y1===0||x2===0){return 0}else if(y1>0){if(x2>0){return-sign}else{return sign}}else{if(x2>0){return sign}else{return-sign}}}if(y1===0||x2===0){if(y2>0){if(x1>0){return sign}else{return-sign}}else{if(x1>0){return-sign}else{return sign}}}if(0<y1){if(0<y2){if(y1>y2){sign=-sign;swap=x1;x1=x2;x2=swap;swap=y1;y1=y2;y2=swap}}else{if(y1<=-y2){sign=-sign;x2=-x2;y2=-y2}else{swap=x1;x1=-x2;x2=swap;swap=y1;y1=-y2;y2=swap}}}else{if(0<y2){if(-y1<=y2){sign=-sign;x1=-x1;y1=-y1}else{swap=-x1;x1=x2;x2=swap;swap=-y1;y1=y2;y2=swap}}else{if(y1>=y2){x1=-x1;y1=-y1;x2=-x2;y2=-y2}else{sign=-sign;swap=-x1;x1=-x2;x2=swap;swap=-y1;y1=-y2;y2=swap}}}if(0<x1){if(0<x2){if(x1>x2){return sign}}else{return sign}}else{if(0<x2){return-sign}else{if(x1>=x2){sign=-sign;x1=-x1;x2=-x2}else{return-sign}}}while(true){count=count+1;k=Math.floor(x2/x1);x2=x2-k*x1;y2=y2-k*y1;if(y2<0){return-sign}if(y2>y1){return sign}if(x1>x2+x2){if(y1<y2+y2){return sign}}else{if(y1>y2+y2){return-sign}else{x2=x1-x2;y2=y1-y2;sign=-sign}}if(y2===0){if(x2===0){return 0}else{return-sign}}if(x2===0){return sign}k=Math.floor(x1/x2);x1=x1-k*x2;y1=y1-k*y2;if(y1<0){return sign}if(y1>y2){return-sign}if(x2>x1+x1){if(y2<y1+y1){return-sign}}else{if(y2>y1+y1){return sign}else{x1=x2-x1;y1=y2-y1;sign=-sign}}if(y1===0){if(x1===0){return 0}else{return sign}}if(x1===0){return-sign}}};jsts.algorithm.RobustDeterminant.orientationIndex=function(p1,p2,q){var dx1=p2.x-p1.x;var dy1=p2.y-p1.y;var dx2=q.x-p2.x;var dy2=q.y-p2.y;return jsts.algorithm.RobustDeterminant.signOfDet2x2(dx1,dy1,dx2,dy2)};jsts.index.quadtree.NodeBase=function(){this.subnode=new Array(4);this.subnode[0]=null;this.subnode[1]=null;this.subnode[2]=null;this.subnode[3]=null;this.items=[]};jsts.index.quadtree.NodeBase.prototype.getSubnodeIndex=function(env,centre){var subnodeIndex=-1;if(env.getMinX()>=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=3}if(env.getMaxY()<=centre.y){subnodeIndex=1}}if(env.getMaxX()<=centre.x){if(env.getMinY()>=centre.y){subnodeIndex=2}if(env.getMaxY()<=centre.y){subnodeIndex=0}}return subnodeIndex};jsts.index.quadtree.NodeBase.prototype.getItems=function(){return this.items};jsts.index.quadtree.NodeBase.prototype.hasItems=function(){return this.items.length>0};jsts.index.quadtree.NodeBase.prototype.add=function(item){this.items.push(item)};jsts.index.quadtree.NodeBase.prototype.remove=function(itemEnv,item){if(!this.isSearchMatch(itemEnv)){return false}var found=false,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){found=this.subnode[i].remove(itemEnv,item);if(found){if(this.subnode[i].isPrunable()){this.subnode[i]=null}break}}}if(found){return found}if(this.items.indexOf(item)!==-1){for(var i=this.items.length-1;i>=0;i--){if(this.items[i]===item){this.items.splice(i,1)}}found=true}return found};jsts.index.quadtree.NodeBase.prototype.isPrunable=function(){return!(this.hasChildren()||this.hasItems())};jsts.index.quadtree.NodeBase.prototype.hasChildren=function(){var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){return true}}return false};jsts.index.quadtree.NodeBase.prototype.isEmpty=function(){var isEmpty=true;if(this.items.length>0){isEmpty=false}var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){if(!this.subnode[i].isEmpty()){isEmpty=false}}}return isEmpty};jsts.index.quadtree.NodeBase.prototype.addAllItems=function(resultItems){resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItems(resultItems)}}return resultItems};jsts.index.quadtree.NodeBase.prototype.addAllItemsFromOverlapping=function(searchEnv,resultItems){if(!this.isSearchMatch(searchEnv)){return}resultItems=resultItems.concat(this.items);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){resultItems=this.subnode[i].addAllItemsFromOverlapping(searchEnv,resultItems)}}};jsts.index.quadtree.NodeBase.prototype.visit=function(searchEnv,visitor){if(!this.isSearchMatch(searchEnv)){return}this.visitItems(searchEnv,visitor);var i=0;for(i;i<4;i++){if(this.subnode[i]!==null){this.subnode[i].visit(searchEnv,visitor)}}};jsts.index.quadtree.NodeBase.prototype.visitItems=function(env,visitor){var i=0,il=this.items.length;for(i;i<il;i++){visitor.visitItem(this.items[i])}};jsts.index.quadtree.NodeBase.prototype.depth=function(){var maxSubDepth=0,i=0,sqd;for(i;i<4;i++){if(this.subnode[i]!==null){sqd=this.subnode[i].depth();if(sqd>maxSubDepth){maxSubDepth=sqd}}}return maxSubDepth+1};jsts.index.quadtree.NodeBase.prototype.size=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+this.items.length};jsts.index.quadtree.NodeBase.prototype.getNodeCount=function(){var subSize=0,i=0;for(i;i<4;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+1};jsts.index.quadtree.Node=function(env,level){jsts.index.quadtree.NodeBase.prototype.constructor.apply(this,arguments);this.env=env;this.level=level;this.centre=new jsts.geom.Coordinate;this.centre.x=(env.getMinX()+env.getMaxX())/2;this.centre.y=(env.getMinY()+env.getMaxY())/2};jsts.index.quadtree.Node.prototype=new jsts.index.quadtree.NodeBase;jsts.index.quadtree.Node.createNode=function(env){var key,node;key=new jsts.index.quadtree.Key(env);node=new jsts.index.quadtree.Node(key.getEnvelope(),key.getLevel());return node};jsts.index.quadtree.Node.createExpanded=function(node,addEnv){var expandEnv=new jsts.geom.Envelope(addEnv),largerNode;if(node!==null){expandEnv.expandToInclude(node.env)}largerNode=jsts.index.quadtree.Node.createNode(expandEnv);if(node!==null){largerNode.insertNode(node)}return largerNode};jsts.index.quadtree.Node.prototype.getEnvelope=function(){return this.env};jsts.index.quadtree.Node.prototype.isSearchMatch=function(searchEnv){return this.env.intersects(searchEnv)};jsts.index.quadtree.Node.prototype.getNode=function(searchEnv){
var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex!==-1){node=this.getSubnode(subnodeIndex);return node.getNode(searchEnv)}else{return this}};jsts.index.quadtree.Node.prototype.find=function(searchEnv){var subnodeIndex=this.getSubnodeIndex(searchEnv,this.centre),node;if(subnodeIndex===-1){return this}if(this.subnode[subnodeIndex]!==null){node=this.subnode[subnodeIndex];return node.find(searchEnv)}return this};jsts.index.quadtree.Node.prototype.insertNode=function(node){var index=this.getSubnodeIndex(node.env,this.centre),childNode;if(node.level===this.level-1){this.subnode[index]=node}else{childNode=this.createSubnode(index);childNode.insertNode(node);this.subnode[index]=childNode}};jsts.index.quadtree.Node.prototype.getSubnode=function(index){if(this.subnode[index]===null){this.subnode[index]=this.createSubnode(index)}return this.subnode[index]};jsts.index.quadtree.Node.prototype.createSubnode=function(index){var minx=0,maxx=0,miny=0,maxy=0,sqEnv,node;switch(index){case 0:minx=this.env.getMinX();maxx=this.centre.x;miny=this.env.getMinY();maxy=this.centre.y;break;case 1:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.env.getMinY();maxy=this.centre.y;break;case 2:minx=this.env.getMinX();maxx=this.centre.x;miny=this.centre.y;maxy=this.env.getMaxY();break;case 3:minx=this.centre.x;maxx=this.env.getMaxX();miny=this.centre.y;maxy=this.env.getMaxY();break}sqEnv=new jsts.geom.Envelope(minx,maxx,miny,maxy);node=new jsts.index.quadtree.Node(sqEnv,this.level-1);return node};(function(){jsts.triangulate.quadedge.QuadEdge=function(){this.rot=null;this.vertex=null;this.next=null;this.data=null};var QuadEdge=jsts.triangulate.quadedge.QuadEdge;jsts.triangulate.quadedge.QuadEdge.makeEdge=function(o,d){var q0,q1,q2,q3,base;q0=new QuadEdge;q1=new QuadEdge;q2=new QuadEdge;q3=new QuadEdge;q0.rot=q1;q1.rot=q2;q2.rot=q3;q3.rot=q0;q0.setNext(q0);q1.setNext(q3);q2.setNext(q2);q3.setNext(q1);base=q0;base.setOrig(o);base.setDest(d);return base};jsts.triangulate.quadedge.QuadEdge.connect=function(a,b){var e=QuadEdge.makeEdge(a.dest(),b.orig());QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b);return e};jsts.triangulate.quadedge.QuadEdge.splice=function(a,b){var alpha,beta,t1,t2,t3,t4;alpha=a.oNext().rot;beta=b.oNext().rot;t1=b.oNext();t2=a.oNext();t3=beta.oNext();t4=alpha.oNext();a.setNext(t1);b.setNext(t2);alpha.setNext(t3);beta.setNext(t4)};jsts.triangulate.quadedge.QuadEdge.swap=function(e){var a,b;a=e.oPrev();b=e.sym().oPrev();QuadEdge.splice(e,a);QuadEdge.splice(e.sym(),b);QuadEdge.splice(e,a.lNext());QuadEdge.splice(e.sym(),b.lNext());e.setOrig(a.dest());e.setDest(b.dest())};jsts.triangulate.quadedge.QuadEdge.prototype.getPrimary=function(){if(this.orig().getCoordinate().compareTo(this.dest().getCoordinate())<=0){return this}else{return this.sym()}};jsts.triangulate.quadedge.QuadEdge.prototype.setData=function(data){this.data=data};jsts.triangulate.quadedge.QuadEdge.prototype.getData=function(){return this.data};jsts.triangulate.quadedge.QuadEdge.prototype.delete_jsts=function(){this.rot=null};jsts.triangulate.quadedge.QuadEdge.prototype.isLive=function(){return this.rot!==null};jsts.triangulate.quadedge.QuadEdge.prototype.setNext=function(next){this.next=next};jsts.triangulate.quadedge.QuadEdge.prototype.invRot=function(){return this.rot.sym()};jsts.triangulate.quadedge.QuadEdge.prototype.sym=function(){return this.rot.rot};jsts.triangulate.quadedge.QuadEdge.prototype.oNext=function(){return this.next};jsts.triangulate.quadedge.QuadEdge.prototype.oPrev=function(){return this.rot.next.rot};jsts.triangulate.quadedge.QuadEdge.prototype.dNext=function(){return this.sym().oNext().sym()};jsts.triangulate.quadedge.QuadEdge.prototype.dPrev=function(){return this.invRot().oNext().invRot()};jsts.triangulate.quadedge.QuadEdge.prototype.lNext=function(){return this.invRot().oNext().rot};jsts.triangulate.quadedge.QuadEdge.prototype.lPrev=function(){return this.next.sym()};jsts.triangulate.quadedge.QuadEdge.prototype.rNext=function(){return this.rot.next.invRot()};jsts.triangulate.quadedge.QuadEdge.prototype.rPrev=function(){return this.sym().oNext()};jsts.triangulate.quadedge.QuadEdge.prototype.setOrig=function(o){this.vertex=o};jsts.triangulate.quadedge.QuadEdge.prototype.setDest=function(d){this.sym().setOrig(d)};jsts.triangulate.quadedge.QuadEdge.prototype.orig=function(){return this.vertex};jsts.triangulate.quadedge.QuadEdge.prototype.dest=function(){return this.sym().orig()};jsts.triangulate.quadedge.QuadEdge.prototype.getLength=function(){return this.orig().getCoordinate().distance(dest().getCoordinate())};jsts.triangulate.quadedge.QuadEdge.prototype.equalsNonOriented=function(qe){if(this.equalsOriented(qe)){return true}if(this.equalsOriented(qe.sym())){return true}return false};jsts.triangulate.quadedge.QuadEdge.prototype.equalsOriented=function(qe){if(this.orig().getCoordinate().equals2D(qe.orig().getCoordinate())&&this.dest().getCoordinate().equals2D(qe.dest().getCoordinate())){return true}return false};jsts.triangulate.quadedge.QuadEdge.prototype.toLineSegment=function(){return new jsts.geom.LineSegment(this.vertex.getCoordinate(),this.dest().getCoordinate())};jsts.triangulate.quadedge.QuadEdge.prototype.toString=function(){var p0,p1;p0=this.vertex.getCoordinate();p1=this.dest().getCoordinate();return jsts.io.WKTWriter.toLineString(p0,p1)}})();(function(){var Assert=jsts.util.Assert;jsts.geomgraph.EdgeEnd=function(edge,p0,p1,label){this.edge=edge;if(p0&&p1){this.init(p0,p1)}if(label){this.label=label||null}};jsts.geomgraph.EdgeEnd.prototype.edge=null;jsts.geomgraph.EdgeEnd.prototype.label=null;jsts.geomgraph.EdgeEnd.prototype.node=null;jsts.geomgraph.EdgeEnd.prototype.p0=null;jsts.geomgraph.EdgeEnd.prototype.p1=null;jsts.geomgraph.EdgeEnd.prototype.dx=null;jsts.geomgraph.EdgeEnd.prototype.dy=null;jsts.geomgraph.EdgeEnd.prototype.quadrant=null;jsts.geomgraph.EdgeEnd.prototype.init=function(p0,p1){this.p0=p0;this.p1=p1;this.dx=p1.x-p0.x;this.dy=p1.y-p0.y;this.quadrant=jsts.geomgraph.Quadrant.quadrant(this.dx,this.dy);Assert.isTrue(!(this.dx===0&&this.dy===0),"EdgeEnd with identical endpoints found")};jsts.geomgraph.EdgeEnd.prototype.getEdge=function(){return this.edge};jsts.geomgraph.EdgeEnd.prototype.getLabel=function(){return this.label};jsts.geomgraph.EdgeEnd.prototype.getCoordinate=function(){return this.p0};jsts.geomgraph.EdgeEnd.prototype.getDirectedCoordinate=function(){return this.p1};jsts.geomgraph.EdgeEnd.prototype.getQuadrant=function(){return this.quadrant};jsts.geomgraph.EdgeEnd.prototype.getDx=function(){return this.dx};jsts.geomgraph.EdgeEnd.prototype.getDy=function(){return this.dy};jsts.geomgraph.EdgeEnd.prototype.setNode=function(node){this.node=node};jsts.geomgraph.EdgeEnd.prototype.getNode=function(){return this.node};jsts.geomgraph.EdgeEnd.prototype.compareTo=function(e){return this.compareDirection(e)};jsts.geomgraph.EdgeEnd.prototype.compareDirection=function(e){if(this.dx===e.dx&&this.dy===e.dy)return 0;if(this.quadrant>e.quadrant)return 1;if(this.quadrant<e.quadrant)return-1;return jsts.algorithm.CGAlgorithms.computeOrientation(e.p0,e.p1,this.p1)};jsts.geomgraph.EdgeEnd.prototype.computeLabel=function(boundaryNodeRule){}})();jsts.operation.buffer.RightmostEdgeFinder=function(){};jsts.operation.buffer.RightmostEdgeFinder.prototype.minIndex=-1;jsts.operation.buffer.RightmostEdgeFinder.prototype.minCoord=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.minDe=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.orientedDe=null;jsts.operation.buffer.RightmostEdgeFinder.prototype.getEdge=function(){return this.orientedDe};jsts.operation.buffer.RightmostEdgeFinder.prototype.getCoordinate=function(){return this.minCoord};jsts.operation.buffer.RightmostEdgeFinder.prototype.findEdge=function(dirEdgeList){for(var i=dirEdgeList.iterator();i.hasNext();){var de=i.next();if(!de.isForward())continue;this.checkForRightmostCoordinate(de)}jsts.util.Assert.isTrue(this.minIndex!==0||this.minCoord.equals(this.minDe.getCoordinate()),"inconsistency in rightmost processing");if(this.minIndex===0){this.findRightmostEdgeAtNode()}else{this.findRightmostEdgeAtVertex()}this.orientedDe=this.minDe;var rightmostSide=this.getRightmostSide(this.minDe,this.minIndex);if(rightmostSide==jsts.geomgraph.Position.LEFT){this.orientedDe=this.minDe.getSym()}};jsts.operation.buffer.RightmostEdgeFinder.prototype.findRightmostEdgeAtNode=function(){var node=this.minDe.getNode();var star=node.getEdges();this.minDe=star.getRightmostEdge();if(!this.minDe.isForward()){this.minDe=this.minDe.getSym();this.minIndex=this.minDe.getEdge().getCoordinates().length-1}};jsts.operation.buffer.RightmostEdgeFinder.prototype.findRightmostEdgeAtVertex=function(){var pts=this.minDe.getEdge().getCoordinates();jsts.util.Assert.isTrue(this.minIndex>0&&this.minIndex<pts.length,"rightmost point expected to be interior vertex of edge");var pPrev=pts[this.minIndex-1];var pNext=pts[this.minIndex+1];var orientation=jsts.algorithm.CGAlgorithms.computeOrientation(this.minCoord,pNext,pPrev);var usePrev=false;if(pPrev.y<this.minCoord.y&&pNext.y<this.minCoord.y&&orientation===jsts.algorithm.CGAlgorithms.COUNTERCLOCKWISE){usePrev=true}else if(pPrev.y>this.minCoord.y&&pNext.y>this.minCoord.y&&orientation===jsts.algorithm.CGAlgorithms.CLOCKWISE){usePrev=true}if(usePrev){this.minIndex=this.minIndex-1}};jsts.operation.buffer.RightmostEdgeFinder.prototype.checkForRightmostCoordinate=function(de){var coord=de.getEdge().getCoordinates();for(var i=0;i<coord.length-1;i++){if(this.minCoord===null||coord[i].x>this.minCoord.x){this.minDe=de;this.minIndex=i;this.minCoord=coord[i]}}};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSide=function(de,index){var side=this.getRightmostSideOfSegment(de,index);if(side<0)side=this.getRightmostSideOfSegment(de,index-1);if(side<0){this.minCoord=null;this.checkForRightmostCoordinate(de)}return side};jsts.operation.buffer.RightmostEdgeFinder.prototype.getRightmostSideOfSegment=function(de,i){var e=de.getEdge();var coord=e.getCoordinates();if(i<0||i+1>=coord.length)return-1;if(coord[i].y==coord[i+1].y)return-1;var pos=jsts.geomgraph.Position.LEFT;if(coord[i].y<coord[i+1].y)pos=jsts.geomgraph.Position.RIGHT;return pos};(function(){jsts.triangulate.IncrementalDelaunayTriangulator=function(subdiv){this.subdiv=subdiv;this.isUsingTolerance=subdiv.getTolerance()>0};jsts.triangulate.IncrementalDelaunayTriangulator.prototype.insertSites=function(vertices){var i=0,il=vertices.length,v;for(i;i<il;i++){v=vertices[i];this.insertSite(v)}};jsts.triangulate.IncrementalDelaunayTriangulator.prototype.insertSite=function(v){var e,base,startEdge,t;e=this.subdiv.locate(v);if(this.subdiv.isVertexOfEdge(e,v)){return e}else if(this.subdiv.isOnEdge(e,v.getCoordinate())){e=e.oPrev();this.subdiv.delete_jsts(e.oNext())}base=this.subdiv.makeEdge(e.orig(),v);jsts.triangulate.quadedge.QuadEdge.splice(base,e);startEdge=base;do{base=this.subdiv.connect(e,base.sym());e=base.oPrev()}while(e.lNext()!=startEdge);do{t=e.oPrev();if(t.dest().rightOf(e)&&v.isInCircle(e.orig(),t.dest(),e.dest())){jsts.triangulate.quadedge.QuadEdge.swap(e);e=e.oPrev()}else if(e.oNext()==startEdge){return base}else{e=e.oNext().lPrev()}}while(true)}})();jsts.algorithm.CentroidArea=function(){this.basePt=null;this.triangleCent3=new jsts.geom.Coordinate;this.centSum=new jsts.geom.Coordinate;this.cg3=new jsts.geom.Coordinate};jsts.algorithm.CentroidArea.prototype.basePt=null;jsts.algorithm.CentroidArea.prototype.triangleCent3=null;jsts.algorithm.CentroidArea.prototype.areasum2=0;jsts.algorithm.CentroidArea.prototype.cg3=null;jsts.algorithm.CentroidArea.prototype.centSum=null;jsts.algorithm.CentroidArea.prototype.totalLength=0;jsts.algorithm.CentroidArea.prototype.add=function(geom){if(geom instanceof jsts.geom.Polygon){var poly=geom;this.setBasePoint(poly.getExteriorRing().getCoordinateN(0));this.add3(poly)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPolygon){var gc=geom;for(var i=0;i<gc.getNumGeometries();i++){this.add(gc.getGeometryN(i))}}else if(geom instanceof Array){this.add2(geom)}};jsts.algorithm.CentroidArea.prototype.add2=function(ring){this.setBasePoint(ring[0]);this.addShell(ring)};jsts.algorithm.CentroidArea.prototype.getCentroid=function(){var cent=new jsts.geom.Coordinate;if(Math.abs(this.areasum2)>0){cent.x=this.cg3.x/3/this.areasum2;cent.y=this.cg3.y/3/this.areasum2}else{cent.x=this.centSum.x/this.totalLength;cent.y=this.centSum.y/this.totalLength}return cent};jsts.algorithm.CentroidArea.prototype.setBasePoint=function(basePt){if(this.basePt==null)this.basePt=basePt};jsts.algorithm.CentroidArea.prototype.add3=function(poly){this.addShell(poly.getExteriorRing().getCoordinates());for(var i=0;i<poly.getNumInteriorRing();i++){this.addHole(poly.getInteriorRingN(i).getCoordinates())}};jsts.algorithm.CentroidArea.prototype.addShell=function(pts){var isPositiveArea=!jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.basePt,pts[i],pts[i+1],isPositiveArea)}this.addLinearSegments(pts)};jsts.algorithm.CentroidArea.prototype.addHole=function(pts){var isPositiveArea=jsts.algorithm.CGAlgorithms.isCCW(pts);for(var i=0;i<pts.length-1;i++){this.addTriangle(this.basePt,pts[i],pts[i+1],isPositiveArea)}this.addLinearSegments(pts)};jsts.algorithm.CentroidArea.prototype.addTriangle=function(p0,p1,p2,isPositiveArea){var sign=isPositiveArea?1:-1;jsts.algorithm.CentroidArea.centroid3(p0,p1,p2,this.triangleCent3);var area2=jsts.algorithm.CentroidArea.area2(p0,p1,p2);this.cg3.x+=sign*area2*this.triangleCent3.x;this.cg3.y+=sign*area2*this.triangleCent3.y;this.areasum2+=sign*area2};jsts.algorithm.CentroidArea.centroid3=function(p1,p2,p3,c){c.x=p1.x+p2.x+p3.x;c.y=p1.y+p2.y+p3.y;return};jsts.algorithm.CentroidArea.area2=function(p1,p2,p3){return(p2.x-p1.x)*(p3.y-p1.y)-(p3.x-p1.x)*(p2.y-p1.y)};jsts.algorithm.CentroidArea.prototype.addLinearSegments=function(pts){for(var i=0;i<pts.length-1;i++){var segmentLen=pts[i].distance(pts[i+1]);this.totalLength+=segmentLen;var midx=(pts[i].x+pts[i+1].x)/2;this.centSum.x+=segmentLen*midx;var midy=(pts[i].y+pts[i+1].y)/2;this.centSum.y+=segmentLen*midy}};jsts.geomgraph.index.SweepLineSegment=function(edge,ptIndex){this.edge=edge;this.ptIndex=ptIndex;this.pts=edge.getCoordinates()};jsts.geomgraph.index.SweepLineSegment.prototype.edge=null;jsts.geomgraph.index.SweepLineSegment.prototype.pts=null;jsts.geomgraph.index.SweepLineSegment.prototype.ptIndex=null;jsts.geomgraph.index.SweepLineSegment.prototype.getMinX=function(){var x1=this.pts[this.ptIndex].x;var x2=this.pts[this.ptIndex+1].x;if(x1<x2){return x1}return x2};jsts.geomgraph.index.SweepLineSegment.prototype.getMaxX=function(){var x1=this.pts[this.ptIndex].x;var x2=this.pts[this.ptIndex+1].x;if(x1>x2){return x1}return x2};jsts.geomgraph.index.SweepLineSegment.prototype.computeIntersections=function(ss,si){si.addIntersections(this.edge,this.ptIndex,ss.edge,ss.ptIndex)};jsts.index.quadtree.Root=function(){jsts.index.quadtree.NodeBase.prototype.constructor.apply(this,arguments);this.origin=new jsts.geom.Coordinate(0,0)};jsts.index.quadtree.Root.prototype=new jsts.index.quadtree.NodeBase;jsts.index.quadtree.Root.prototype.insert=function(itemEnv,item){var index=this.getSubnodeIndex(itemEnv,this.origin);if(index===-1){this.add(item);return}var node=this.subnode[index];if(node===null||!node.getEnvelope().contains(itemEnv)){var largerNode=jsts.index.quadtree.Node.createExpanded(node,itemEnv);this.subnode[index]=largerNode}this.insertContained(this.subnode[index],itemEnv,item)};jsts.index.quadtree.Root.prototype.insertContained=function(tree,itemEnv,item){var isZeroX,isZeroY,node;isZeroX=jsts.index.IntervalSize.isZeroWidth(itemEnv.getMinX(),itemEnv.getMaxX());isZeroY=jsts.index.IntervalSize.isZeroWidth(itemEnv.getMinY(),itemEnv.getMaxY());if(isZeroX||isZeroY){node=tree.find(itemEnv)}else{node=tree.getNode(itemEnv)}node.add(item)};jsts.index.quadtree.Root.prototype.isSearchMatch=function(searchEnv){return true};jsts.geomgraph.index.MonotoneChainIndexer=function(){};jsts.geomgraph.index.MonotoneChainIndexer.toIntArray=function(list){var array=[];for(var i=list.iterator();i.hasNext();){var element=i.next();array.push(element)}return array};jsts.geomgraph.index.MonotoneChainIndexer.prototype.getChainStartIndices=function(pts){var start=0;var startIndexList=new javascript.util.ArrayList;startIndexList.add(start);do{var last=this.findChainEnd(pts,start);startIndexList.add(last);start=last}while(start<pts.length-1);var startIndex=jsts.geomgraph.index.MonotoneChainIndexer.toIntArray(startIndexList);return startIndex};jsts.geomgraph.index.MonotoneChainIndexer.prototype.findChainEnd=function(pts,start){var chainQuad=jsts.geomgraph.Quadrant.quadrant(pts[start],pts[start+1]);var last=start+1;while(last<pts.length){var quad=jsts.geomgraph.Quadrant.quadrant(pts[last-1],pts[last]);if(quad!=chainQuad){break}last++}return last-1};jsts.noding.IntersectionAdder=function(li){this.li=li};jsts.noding.IntersectionAdder.prototype=new jsts.noding.SegmentIntersector;jsts.noding.IntersectionAdder.constructor=jsts.noding.IntersectionAdder;jsts.noding.IntersectionAdder.isAdjacentSegments=function(i1,i2){return Math.abs(i1-i2)===1};jsts.noding.IntersectionAdder.prototype._hasIntersection=false;jsts.noding.IntersectionAdder.prototype.hasProper=false;jsts.noding.IntersectionAdder.prototype.hasProperInterior=false;jsts.noding.IntersectionAdder.prototype.hasInterior=false;jsts.noding.IntersectionAdder.prototype.properIntersectionPoint=null;jsts.noding.IntersectionAdder.prototype.li=null;jsts.noding.IntersectionAdder.prototype.isSelfIntersection=null;jsts.noding.IntersectionAdder.prototype.numIntersections=0;jsts.noding.IntersectionAdder.prototype.numInteriorIntersections=0;jsts.noding.IntersectionAdder.prototype.numProperIntersections=0;jsts.noding.IntersectionAdder.prototype.numTests=0;jsts.noding.IntersectionAdder.prototype.getLineIntersector=function(){return this.li};jsts.noding.IntersectionAdder.prototype.getProperIntersectionPoint=function(){return this.properIntersectionPoint};jsts.noding.IntersectionAdder.prototype.hasIntersection=function(){return this._hasIntersection};jsts.noding.IntersectionAdder.prototype.hasProperIntersection=function(){return this.hasProper};jsts.noding.IntersectionAdder.prototype.hasProperInteriorIntersection=function(){return this.hasProperInterior};jsts.noding.IntersectionAdder.prototype.hasInteriorIntersection=function(){return this.hasInterior};jsts.noding.IntersectionAdder.prototype.isTrivialIntersection=function(e0,segIndex0,e1,segIndex1){if(e0==e1){if(this.li.getIntersectionNum()==1){if(jsts.noding.IntersectionAdder.isAdjacentSegments(segIndex0,segIndex1))return true;if(e0.isClosed()){var maxSegIndex=e0.size()-1;if(segIndex0===0&&segIndex1===maxSegIndex||segIndex1===0&&segIndex0===maxSegIndex){return true}}}}return false};jsts.noding.IntersectionAdder.prototype.processIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;this.numTests++;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){this.numIntersections++;if(this.li.isInteriorIntersection()){this.numInteriorIntersections++;this.hasInterior=true}if(!this.isTrivialIntersection(e0,segIndex0,e1,segIndex1)){this._hasIntersection=true;e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1);if(this.li.isProper()){this.numProperIntersections++;this.hasProper=true;this.hasProperInterior=true}}}};jsts.noding.IntersectionAdder.prototype.isDone=function(){return false};jsts.operation.union.CascadedPolygonUnion=function(polys){this.inputPolys=polys};jsts.operation.union.CascadedPolygonUnion.union=function(polys){var op=new jsts.operation.union.CascadedPolygonUnion(polys);return op.union()};jsts.operation.union.CascadedPolygonUnion.prototype.inputPolys;jsts.operation.union.CascadedPolygonUnion.prototype.geomFactory=null;jsts.operation.union.CascadedPolygonUnion.prototype.STRTREE_NODE_CAPACITY=4;jsts.operation.union.CascadedPolygonUnion.prototype.union=function(){if(this.inputPolys.length===0){return null}this.geomFactory=this.inputPolys[0].getFactory();var index=new jsts.index.strtree.STRtree(this.STRTREE_NODE_CAPACITY);for(var i=0,l=this.inputPolys.length;i<l;i++){var item=this.inputPolys[i];index.insert(item.getEnvelopeInternal(),item)}var itemTree=index.itemsTree();var unionAll=this.unionTree(itemTree);return unionAll};jsts.operation.union.CascadedPolygonUnion.prototype.unionTree=function(geomTree){var geoms=this.reduceToGeometries(geomTree);var union=this.binaryUnion(geoms);return union};jsts.operation.union.CascadedPolygonUnion.prototype.binaryUnion=function(geoms,start,end){start=start||0;end=end||geoms.length;if(end-start<=1){var g0=this.getGeometry(geoms,start);return this.unionSafe(g0,null)}else if(end-start===2){return this.unionSafe(this.getGeometry(geoms,start),this.getGeometry(geoms,start+1))}else{var mid=parseInt((end+start)/2);var g0=this.binaryUnion(geoms,start,mid);var g1=this.binaryUnion(geoms,mid,end);return this.unionSafe(g0,g1)}};jsts.operation.union.CascadedPolygonUnion.prototype.getGeometry=function(list,index){if(index>=list.length){return null}return list[index]};jsts.operation.union.CascadedPolygonUnion.prototype.reduceToGeometries=function(geomTree){var geoms=[];for(var i=0,l=geomTree.length;i<l;i++){var o=geomTree[i],geom=null;if(o instanceof Array){geom=this.unionTree(o)}else if(o instanceof jsts.geom.Geometry){geom=o}geoms.push(geom)}return geoms};jsts.operation.union.CascadedPolygonUnion.prototype.unionSafe=function(g0,g1){if(g0===null&&g1===null){return null}if(g0===null){return g1.clone()}if(g1===null){return g0.clone()}return this.unionOptimized(g0,g1)};jsts.operation.union.CascadedPolygonUnion.prototype.unionOptimized=function(g0,g1){var g0Env=g0.getEnvelopeInternal(),g1Env=g1.getEnvelopeInternal();if(!g0Env.intersects(g1Env)){var combo=jsts.geom.util.GeometryCombiner.combine(g0,g1);return combo}if(g0.getNumGeometries<=1&&g1.getNumGeometries<=1){return this.unionActual(g0,g1)}var commonEnv=g0Env.intersection(g1Env);return this.unionUsingEnvelopeIntersection(g0,g1,commonEnv)};jsts.operation.union.CascadedPolygonUnion.prototype.unionUsingEnvelopeIntersection=function(g0,g1,common){var disjointPolys=new javascript.util.ArrayList;var g0Int=this.extractByEnvelope(common,g0,disjointPolys);var g1Int=this.extractByEnvelope(common,g1,disjointPolys);var union=this.unionActual(g0Int,g1Int);disjointPolys.add(union);var overallUnion=jsts.geom.util.GeometryCombiner.combine(disjointPolys);return overallUnion};jsts.operation.union.CascadedPolygonUnion.prototype.extractByEnvelope=function(env,geom,disjointGeoms){var intersectingGeoms=new javascript.util.ArrayList;for(var i=0;i<geom.getNumGeometries();i++){var elem=geom.getGeometryN(i);if(elem.getEnvelopeInternal().intersects(env)){intersectingGeoms.add(elem)}else{disjointGeoms.add(elem)}}return this.geomFactory.buildGeometry(intersectingGeoms)};jsts.operation.union.CascadedPolygonUnion.prototype.unionActual=function(g0,g1){return g0.union(g1)};(function(){jsts.geom.MultiPoint=function(points,factory){this.geometries=points||[];this.factory=factory};jsts.geom.MultiPoint.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiPoint.constructor=jsts.geom.MultiPoint;jsts.geom.MultiPoint.prototype.getBoundary=function(){return this.getFactory().createGeometryCollection(null)};jsts.geom.MultiPoint.prototype.getGeometryN=function(n){return this.geometries[n]};jsts.geom.MultiPoint.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiPoint.prototype.CLASS_NAME="jsts.geom.MultiPoint"})();jsts.operation.buffer.OffsetCurveBuilder=function(precisionModel,bufParams){this.precisionModel=precisionModel;this.bufParams=bufParams};jsts.operation.buffer.OffsetCurveBuilder.prototype.distance=0;jsts.operation.buffer.OffsetCurveBuilder.prototype.precisionModel=null;jsts.operation.buffer.OffsetCurveBuilder.prototype.bufParams=null;jsts.operation.buffer.OffsetCurveBuilder.prototype.getBufferParameters=function(){return this.bufParams};jsts.operation.buffer.OffsetCurveBuilder.prototype.getLineCurve=function(inputPts,distance){this.distance=distance;if(this.distance<0&&!this.bufParams.isSingleSided())return null;if(this.distance==0)return null;var posDistance=Math.abs(this.distance);var segGen=this.getSegGen(posDistance);if(inputPts.length<=1){this.computePointCurve(inputPts[0],segGen)}else{if(this.bufParams.isSingleSided()){var isRightSide=distance<0;this.computeSingleSidedBufferCurve(inputPts,isRightSide,segGen)}else this.computeLineBufferCurve(inputPts,segGen)}var lineCoord=segGen.getCoordinates();return lineCoord};jsts.operation.buffer.OffsetCurveBuilder.prototype.getRingCurve=function(inputPts,side,distance){this.distance=distance;if(inputPts.length<=2)return this.getLineCurve(inputPts,distance);if(this.distance==0){return jsts.operation.buffer.OffsetCurveBuilder.copyCoordinates(inputPts)}var segGen=this.getSegGen(this.distance);this.computeRingBufferCurve(inputPts,side,segGen);return segGen.getCoordinates()};jsts.operation.buffer.OffsetCurveBuilder.prototype.getOffsetCurve=function(inputPts,distance){this.distance=distance;if(this.distance===0)return null;var isRightSide=this.distance<0;var posDistance=Math.abs(this.distance);var segGen=this.getSegGen(posDistance);if(inputPts.length<=1){this.computePointCurve(inputPts[0],segGen)}else{this.computeOffsetCurve(inputPts,isRightSide,segGen)}var curvePts=segGen.getCoordinates();if(isRightSide)curvePts.reverse();return curvePts};jsts.operation.buffer.OffsetCurveBuilder.copyCoordinates=function(pts){var copy=[];for(var i=0;i<pts.length;i++){copy.push(pts[i].clone())}return copy};jsts.operation.buffer.OffsetCurveBuilder.prototype.getSegGen=function(distance){return new jsts.operation.buffer.OffsetSegmentGenerator(this.precisionModel,this.bufParams,distance)};jsts.operation.buffer.OffsetCurveBuilder.SIMPLIFY_FACTOR=100;jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance=function(bufDistance){return bufDistance/jsts.operation.buffer.OffsetCurveBuilder.SIMPLIFY_FACTOR};jsts.operation.buffer.OffsetCurveBuilder.prototype.computePointCurve=function(pt,segGen){switch(this.bufParams.getEndCapStyle()){case jsts.operation.buffer.BufferParameters.CAP_ROUND:segGen.createCircle(pt);break;case jsts.operation.buffer.BufferParameters.CAP_SQUARE:segGen.createSquare(pt);break}};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeLineBufferCurve=function(inputPts,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}segGen.addLastSegment();segGen.addLineEndCap(simp1[n1-1],simp1[n1]);var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}segGen.addLastSegment();segGen.addLineEndCap(simp2[1],simp2[0]);segGen.closeRing()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeSingleSidedBufferCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(isRightSide){segGen.addSegments(inputPts,true);var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}}else{segGen.addSegments(inputPts,false);var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}}segGen.addLastSegment();segGen.closeRing()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeOffsetCurve=function(inputPts,isRightSide,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(isRightSide){var simp2=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,-distTol);var n2=simp2.length-1;segGen.initSideSegments(simp2[n2],simp2[n2-1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=n2-2;i>=0;i--){segGen.addNextSegment(simp2[i],true)}}else{var simp1=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n1=simp1.length-1;segGen.initSideSegments(simp1[0],simp1[1],jsts.geomgraph.Position.LEFT);segGen.addFirstSegment();for(var i=2;i<=n1;i++){segGen.addNextSegment(simp1[i],true)}}segGen.addLastSegment()};jsts.operation.buffer.OffsetCurveBuilder.prototype.computeRingBufferCurve=function(inputPts,side,segGen){var distTol=jsts.operation.buffer.OffsetCurveBuilder.simplifyTolerance(this.distance);if(side===jsts.geomgraph.Position.RIGHT)distTol=-distTol;var simp=jsts.operation.buffer.BufferInputLineSimplifier.simplify(inputPts,distTol);var n=simp.length-1;segGen.initSideSegments(simp[n-1],simp[0],side);for(var i=1;i<=n;i++){var addStartPoint=i!==1;segGen.addNextSegment(simp[i],addStartPoint)}segGen.closeRing()};(function(){var HotPixelSnapAction=function(hotPixel,parentEdge,vertexIndex){this.hotPixel=hotPixel;this.parentEdge=parentEdge;this.vertexIndex=vertexIndex};HotPixelSnapAction.prototype=new jsts.index.chain.MonotoneChainSelectAction;HotPixelSnapAction.constructor=HotPixelSnapAction;HotPixelSnapAction.prototype.hotPixel=null;HotPixelSnapAction.prototype.parentEdge=null;HotPixelSnapAction.prototype.vertexIndex=null;HotPixelSnapAction.prototype._isNodeAdded=false;HotPixelSnapAction.prototype.isNodeAdded=function(){return this._isNodeAdded};HotPixelSnapAction.prototype.select=function(mc,startIndex){var ss=mc.getContext();if(this.parentEdge!==null){if(ss===this.parentEdge&&startIndex===this.vertexIndex)return}this._isNodeAdded=this.hotPixel.addSnappedNode(ss,startIndex)};jsts.noding.snapround.MCIndexPointSnapper=function(index){this.index=index};jsts.noding.snapround.MCIndexPointSnapper.prototype.index=null;jsts.noding.snapround.MCIndexPointSnapper.prototype.snap=function(hotPixel,parentEdge,vertexIndex){if(arguments.length===1){this.snap2.apply(this,arguments);return}var pixelEnv=hotPixel.getSafeEnvelope();var hotPixelSnapAction=new HotPixelSnapAction(hotPixel,parentEdge,vertexIndex);this.index.query(pixelEnv,{visitItem:function(testChain){testChain.select(pixelEnv,hotPixelSnapAction)}});return hotPixelSnapAction.isNodeAdded()};jsts.noding.snapround.MCIndexPointSnapper.prototype.snap2=function(hotPixel){return this.snap(hotPixel,null,-1)}})();(function(){var NodeBase=function(){this.items=new javascript.util.ArrayList;this.subnode=[null,null]};NodeBase.getSubnodeIndex=function(interval,centre){var subnodeIndex=-1;if(interval.min>=centre){subnodeIndex=1}if(interval.max<=centre){subnodeIndex=0}return subnodeIndex};NodeBase.prototype.getItems=function(){return this.items};NodeBase.prototype.add=function(item){this.items.add(item)};NodeBase.prototype.addAllItems=function(items){items.addAll(this.items);var i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){this.subnode[i].addAllItems(items)}}return items};NodeBase.prototype.addAllItemsFromOverlapping=function(interval,resultItems){if(interval!==null&&!this.isSearchMatch(interval)){return}resultItems.addAll(this.items);if(this.subnode[0]!==null){this.subnode[0].addAllItemsFromOverlapping(interval,resultItems)}if(this.subnode[1]!==null){
this.subnode[1].addAllItemsFromOverlapping(interval,resultItems)}};NodeBase.prototype.remove=function(itemInterval,item){if(!this.isSearchMatch(itemInterval)){return false}var found=false,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){found=this.subnode[i].remove(itemInterval,item);if(found){if(this.subnode[i].isPrunable()){this.subnode[i]=null}break}}}if(found){return found}found=this.items.remove(item);return found};NodeBase.prototype.isPrunable=function(){return!(this.hasChildren()||this.hasItems())};NodeBase.prototype.hasChildren=function(){var i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){return true}}return false};NodeBase.prototype.hasItems=function(){return!this.items.isEmpty()};NodeBase.prototype.depth=function(){var maxSubDepth=0,i=0,il=2,sqd;for(i;i<il;i++){if(this.subnode[i]!==null){sqd=this.subnode[i].depth();if(sqd>maxSubDepth){maxSubDepth=sqd}}}return maxSubDepth+1};NodeBase.prototype.size=function(){var subSize=0,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].size()}}return subSize+this.items.size()};NodeBase.prototype.nodeSize=function(){var subSize=0,i=0,il=2;for(i;i<il;i++){if(this.subnode[i]!==null){subSize+=this.subnode[i].nodeSize()}}return subSize+1};jsts.index.bintree.NodeBase=NodeBase})();(function(){var NodeBase=jsts.index.bintree.NodeBase;var Key=jsts.index.bintree.Key;var Interval=jsts.index.bintree.Interval;var Node=function(interval,level){this.items=new javascript.util.ArrayList;this.subnode=[null,null];this.interval=interval;this.level=level;this.centre=(interval.getMin()+interval.getMax())/2};Node.prototype=new NodeBase;Node.constructor=Node;Node.createNode=function(itemInterval){var key,node;key=new Key(itemInterval);node=new Node(key.getInterval(),key.getLevel());return node};Node.createExpanded=function(node,addInterval){var expandInt,largerNode;expandInt=new Interval(addInterval);if(node!==null){expandInt.expandToInclude(node.interval)}largerNode=Node.createNode(expandInt);if(node!==null){largerNode.insert(node)}return largerNode};Node.prototype.getInterval=function(){return this.interval};Node.prototype.isSearchMatch=function(itemInterval){return itemInterval.overlaps(this.interval)};Node.prototype.getNode=function(searchInterval){var subnodeIndex=NodeBase.getSubnodeIndex(searchInterval,this.centre),node;if(subnodeIndex!=-1){node=this.getSubnode(subnodeIndex);return node.getNode(searchInterval)}else{return this}};Node.prototype.find=function(searchInterval){var subnodeIndex=NodeBase.getSubnodeIndex(searchInterval,this.centre),node;if(subnodeIndex===-1){return this}if(this.subnode[subnodeIndex]!==null){node=this.subnode[subnodeIndex];return node.find(searchInterval)}return this};Node.prototype.insert=function(node){var index=NodeBase.getSubnodeIndex(node.interval,this.centre),childNode;if(node.level===this.level-1){this.subnode[index]=node}else{childNode=this.createSubnode(index);childNode.insert(node);this.subnode[index]=childNode}};Node.prototype.getSubnode=function(index){if(this.subnode[index]===null){this.subnode[index]=this.createSubnode(index)}return this.subnode[index]};Node.prototype.createSubnode=function(index){var min,max,subInt,node;min=0;max=0;switch(index){case 0:min=this.interval.getMin();max=this.centre;break;case 1:min=this.centre;max=this.interval.getMax();break}subInt=new Interval(min,max);node=new Node(subInt,this.level-1);return node};jsts.index.bintree.Node=Node})();(function(){var Node=jsts.index.bintree.Node;var NodeBase=jsts.index.bintree.NodeBase;var Root=function(){this.subnode=[null,null];this.items=new javascript.util.ArrayList};Root.prototype=new jsts.index.bintree.NodeBase;Root.constructor=Root;Root.origin=0;Root.prototype.insert=function(itemInterval,item){var index=NodeBase.getSubnodeIndex(itemInterval,Root.origin),node,largerNode;if(index===-1){this.add(item);return}node=this.subnode[index];if(node===null||!node.getInterval().contains(itemInterval)){largerNode=Node.createExpanded(node,itemInterval);this.subnode[index]=largerNode}this.insertContained(this.subnode[index],itemInterval,item)};Root.prototype.insertContained=function(tree,itemInterval,item){var isZeroArea,node;isZeroArea=jsts.index.IntervalSize.isZeroWidth(itemInterval.getMin(),itemInterval.getMax());node=isZeroArea?tree.find(itemInterval):tree.getNode(itemInterval);node.add(item)};Root.prototype.isSearchMatch=function(interval){return true};jsts.index.bintree.Root=Root})();jsts.geomgraph.Quadrant=function(){};jsts.geomgraph.Quadrant.NE=0;jsts.geomgraph.Quadrant.NW=1;jsts.geomgraph.Quadrant.SW=2;jsts.geomgraph.Quadrant.SE=3;jsts.geomgraph.Quadrant.quadrant=function(dx,dy){if(dx instanceof jsts.geom.Coordinate){return jsts.geomgraph.Quadrant.quadrant2.apply(this,arguments)}if(dx===0&&dy===0)throw new jsts.error.IllegalArgumentError("Cannot compute the quadrant for point ( "+dx+", "+dy+" )");if(dx>=0){if(dy>=0)return jsts.geomgraph.Quadrant.NE;else return jsts.geomgraph.Quadrant.SE}else{if(dy>=0)return jsts.geomgraph.Quadrant.NW;else return jsts.geomgraph.Quadrant.SW}};jsts.geomgraph.Quadrant.quadrant2=function(p0,p1){if(p1.x===p0.x&&p1.y===p0.y)throw new jsts.error.IllegalArgumentError("Cannot compute the quadrant for two identical points "+p0);if(p1.x>=p0.x){if(p1.y>=p0.y)return jsts.geomgraph.Quadrant.NE;else return jsts.geomgraph.Quadrant.SE}else{if(p1.y>=p0.y)return jsts.geomgraph.Quadrant.NW;else return jsts.geomgraph.Quadrant.SW}};jsts.geomgraph.Quadrant.isOpposite=function(quad1,quad2){if(quad1===quad2)return false;var diff=(quad1-quad2+4)%4;if(diff===2)return true;return false};jsts.geomgraph.Quadrant.commonHalfPlane=function(quad1,quad2){if(quad1===quad2)return quad1;var diff=(quad1-quad2+4)%4;if(diff===2)return-1;var min=quad1<quad2?quad1:quad2;var max=quad1>quad2?quad1:quad2;if(min===0&&max===3)return 3;return min};jsts.geomgraph.Quadrant.isInHalfPlane=function(quad,halfPlane){if(halfPlane===jsts.geomgraph.Quadrant.SE){return quad===jsts.geomgraph.Quadrant.SE||quad===jsts.geomgraph.Quadrant.SW}return quad===halfPlane||quad===halfPlane+1};jsts.geomgraph.Quadrant.isNorthern=function(quad){return quad===jsts.geomgraph.Quadrant.NE||quad===jsts.geomgraph.Quadrant.NW};jsts.operation.valid.ConsistentAreaTester=function(geomGraph){this.geomGraph=geomGraph;this.li=new jsts.algorithm.RobustLineIntersector;this.nodeGraph=new jsts.operation.relate.RelateNodeGraph;this.invalidPoint=null};jsts.operation.valid.ConsistentAreaTester.prototype.getInvalidPoint=function(){return this.invalidPoint};jsts.operation.valid.ConsistentAreaTester.prototype.isNodeConsistentArea=function(){var intersector=this.geomGraph.computeSelfNodes(this.li,true);if(intersector.hasProperIntersection()){this.invalidPoint=intersector.getProperIntersectionPoint();return false}this.nodeGraph.build(this.geomGraph);return this.isNodeEdgeAreaLabelsConsistent()};jsts.operation.valid.ConsistentAreaTester.prototype.isNodeEdgeAreaLabelsConsistent=function(){for(var nodeIt=this.nodeGraph.getNodeIterator();nodeIt.hasNext();){var node=nodeIt.next();if(!node.getEdges().isAreaLabelsConsistent(this.geomGraph)){this.invalidPoint=node.getCoordinate().clone();return false}}return true};jsts.operation.valid.ConsistentAreaTester.prototype.hasDuplicateRings=function(){for(var nodeIt=this.nodeGraph.getNodeIterator();nodeIt.hasNext();){var node=nodeIt.next();for(var i=node.getEdges().iterator();i.hasNext();){var eeb=i.next();if(eeb.getEdgeEnds().length>1){invalidPoint=eeb.getEdge().getCoordinate(0);return true}}}return false};jsts.operation.relate.RelateNode=function(coord,edges){jsts.geomgraph.Node.apply(this,arguments)};jsts.operation.relate.RelateNode.prototype=new jsts.geomgraph.Node;jsts.operation.relate.RelateNode.prototype.computeIM=function(im){im.setAtLeastIfValid(this.label.getLocation(0),this.label.getLocation(1),0)};jsts.operation.relate.RelateNode.prototype.updateIMFromEdges=function(im){this.edges.updateIM(im)};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var EdgeEnd=jsts.geomgraph.EdgeEnd;jsts.geomgraph.DirectedEdge=function(edge,isForward){EdgeEnd.call(this,edge);this.depth=[0,-999,-999];this._isForward=isForward;if(isForward){this.init(edge.getCoordinate(0),edge.getCoordinate(1))}else{var n=edge.getNumPoints()-1;this.init(edge.getCoordinate(n),edge.getCoordinate(n-1))}this.computeDirectedLabel()};jsts.geomgraph.DirectedEdge.prototype=new EdgeEnd;jsts.geomgraph.DirectedEdge.constructor=jsts.geomgraph.DirectedEdge;jsts.geomgraph.DirectedEdge.depthFactor=function(currLocation,nextLocation){if(currLocation===Location.EXTERIOR&&nextLocation===Location.INTERIOR)return 1;else if(currLocation===Location.INTERIOR&&nextLocation===Location.EXTERIOR)return-1;return 0};jsts.geomgraph.DirectedEdge.prototype._isForward=null;jsts.geomgraph.DirectedEdge.prototype._isInResult=false;jsts.geomgraph.DirectedEdge.prototype._isVisited=false;jsts.geomgraph.DirectedEdge.prototype.sym=null;jsts.geomgraph.DirectedEdge.prototype.next=null;jsts.geomgraph.DirectedEdge.prototype.nextMin=null;jsts.geomgraph.DirectedEdge.prototype.edgeRing=null;jsts.geomgraph.DirectedEdge.prototype.minEdgeRing=null;jsts.geomgraph.DirectedEdge.prototype.depth=null;jsts.geomgraph.DirectedEdge.prototype.getEdge=function(){return this.edge};jsts.geomgraph.DirectedEdge.prototype.setInResult=function(isInResult){this._isInResult=isInResult};jsts.geomgraph.DirectedEdge.prototype.isInResult=function(){return this._isInResult};jsts.geomgraph.DirectedEdge.prototype.isVisited=function(){return this._isVisited};jsts.geomgraph.DirectedEdge.prototype.setVisited=function(isVisited){this._isVisited=isVisited};jsts.geomgraph.DirectedEdge.prototype.setEdgeRing=function(edgeRing){this.edgeRing=edgeRing};jsts.geomgraph.DirectedEdge.prototype.getEdgeRing=function(){return this.edgeRing};jsts.geomgraph.DirectedEdge.prototype.setMinEdgeRing=function(minEdgeRing){this.minEdgeRing=minEdgeRing};jsts.geomgraph.DirectedEdge.prototype.getMinEdgeRing=function(){return this.minEdgeRing};jsts.geomgraph.DirectedEdge.prototype.getDepth=function(position){return this.depth[position]};jsts.geomgraph.DirectedEdge.prototype.setDepth=function(position,depthVal){if(this.depth[position]!==-999){if(this.depth[position]!==depthVal)throw new jsts.error.TopologyError("assigned depths do not match",this.getCoordinate())}this.depth[position]=depthVal};jsts.geomgraph.DirectedEdge.prototype.getDepthDelta=function(){var depthDelta=this.edge.getDepthDelta();if(!this._isForward)depthDelta=-depthDelta;return depthDelta};jsts.geomgraph.DirectedEdge.prototype.setVisitedEdge=function(isVisited){this.setVisited(isVisited);this.sym.setVisited(isVisited)};jsts.geomgraph.DirectedEdge.prototype.getSym=function(){return this.sym};jsts.geomgraph.DirectedEdge.prototype.isForward=function(){return this._isForward};jsts.geomgraph.DirectedEdge.prototype.setSym=function(de){this.sym=de};jsts.geomgraph.DirectedEdge.prototype.getNext=function(){return this.next};jsts.geomgraph.DirectedEdge.prototype.setNext=function(next){this.next=next};jsts.geomgraph.DirectedEdge.prototype.getNextMin=function(){return this.nextMin};jsts.geomgraph.DirectedEdge.prototype.setNextMin=function(nextMin){this.nextMin=nextMin};jsts.geomgraph.DirectedEdge.prototype.isLineEdge=function(){var isLine=this.label.isLine(0)||this.label.isLine(1);var isExteriorIfArea0=!this.label.isArea(0)||this.label.allPositionsEqual(0,Location.EXTERIOR);var isExteriorIfArea1=!this.label.isArea(1)||this.label.allPositionsEqual(1,Location.EXTERIOR);return isLine&&isExteriorIfArea0&&isExteriorIfArea1};jsts.geomgraph.DirectedEdge.prototype.isInteriorAreaEdge=function(){var isInteriorAreaEdge=true;for(var i=0;i<2;i++){if(!(this.label.isArea(i)&&this.label.getLocation(i,Position.LEFT)===Location.INTERIOR&&this.label.getLocation(i,Position.RIGHT)===Location.INTERIOR)){isInteriorAreaEdge=false}}return isInteriorAreaEdge};jsts.geomgraph.DirectedEdge.prototype.computeDirectedLabel=function(){this.label=new jsts.geomgraph.Label(this.edge.getLabel());if(!this._isForward)this.label.flip()};jsts.geomgraph.DirectedEdge.prototype.setEdgeDepths=function(position,depth){var depthDelta=this.getEdge().getDepthDelta();if(!this._isForward)depthDelta=-depthDelta;var directionFactor=1;if(position===Position.LEFT)directionFactor=-1;var oppositePos=Position.opposite(position);var delta=depthDelta*directionFactor;var oppositeDepth=depth+delta;this.setDepth(position,depth);this.setDepth(oppositePos,oppositeDepth)}})();jsts.operation.distance.DistanceOp=function(g0,g1,terminateDistance){this.ptLocator=new jsts.algorithm.PointLocator;this.geom=[];this.geom[0]=g0;this.geom[1]=g1;this.terminateDistance=terminateDistance};jsts.operation.distance.DistanceOp.prototype.geom=null;jsts.operation.distance.DistanceOp.prototype.terminateDistance=0;jsts.operation.distance.DistanceOp.prototype.ptLocator=null;jsts.operation.distance.DistanceOp.prototype.minDistanceLocation=null;jsts.operation.distance.DistanceOp.prototype.minDistance=Number.MAX_VALUE;jsts.operation.distance.DistanceOp.distance=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0);return distOp.distance()};jsts.operation.distance.DistanceOp.isWithinDistance=function(g0,g1,distance){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,distance);return distOp.distance()<=distance};jsts.operation.distance.DistanceOp.nearestPoints=function(g0,g1){var distOp=new jsts.operation.distance.DistanceOp(g0,g1,0);return distOp.nearestPoints()};jsts.operation.distance.DistanceOp.prototype.distance=function(){if(this.geom[0]===null||this.geom[1]===null)throw new jsts.error.IllegalArgumentError("null geometries are not supported");if(this.geom[0].isEmpty()||this.geom[1].isEmpty())return 0;this.computeMinDistance();return this.minDistance};jsts.operation.distance.DistanceOp.prototype.nearestPoints=function(){this.computeMinDistance();var nearestPts=[this.minDistanceLocation[0].getCoordinate(),this.minDistanceLocation[1].getCoordinate()];return nearestPts};jsts.operation.distance.DistanceOp.prototype.nearestLocations=function(){this.computeMinDistance();return this.minDistanceLocation};jsts.operation.distance.DistanceOp.prototype.updateMinDistance=function(locGeom,flip){if(locGeom[0]===null)return;if(flip){this.minDistanceLocation[0]=locGeom[1];this.minDistanceLocation[1]=locGeom[0]}else{this.minDistanceLocation[0]=locGeom[0];this.minDistanceLocation[1]=locGeom[1]}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance=function(){if(arguments.length>0){this.computeMinDistance2.apply(this,arguments);return}if(this.minDistanceLocation!==null)return;this.minDistanceLocation=[];this.computeContainmentDistance();if(this.minDistance<=this.terminateDistance)return;this.computeFacetDistance()};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance=function(){if(arguments.length===2){this.computeContainmentDistance2.apply(this,arguments);return}else if(arguments.length===3&&!arguments[0]instanceof jsts.operation.distance.GeometryLocation){this.computeContainmentDistance3.apply(this,arguments);return}else if(arguments.length===3){this.computeContainmentDistance4.apply(this,arguments);return}var locPtPoly=[];this.computeContainmentDistance2(0,locPtPoly);if(this.minDistance<=this.terminateDistance)return;this.computeContainmentDistance2(1,locPtPoly)};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance2=function(polyGeomIndex,locPtPoly){var locationsIndex=1-polyGeomIndex;var polys=jsts.geom.util.PolygonExtracter.getPolygons(this.geom[polyGeomIndex]);if(polys.length>0){var insideLocs=jsts.operation.distance.ConnectedElementLocationFilter.getLocations(this.geom[locationsIndex]);this.computeContainmentDistance3(insideLocs,polys,locPtPoly);if(this.minDistance<=this.terminateDistance){this.minDistanceLocation[locationsIndex]=locPtPoly[0];this.minDistanceLocation[polyGeomIndex]=locPtPoly[1];return}}};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance3=function(locs,polys,locPtPoly){for(var i=0;i<locs.length;i++){var loc=locs[i];for(var j=0;j<polys.length;j++){this.computeContainmentDistance4(loc,polys[j],locPtPoly);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeContainmentDistance4=function(ptLoc,poly,locPtPoly){var pt=ptLoc.getCoordinate();if(jsts.geom.Location.EXTERIOR!==this.ptLocator.locate(pt,poly)){this.minDistance=0;locPtPoly[0]=ptLoc;locPtPoly[1]=new jsts.operation.distance.GeometryLocation(poly,pt);return}};jsts.operation.distance.DistanceOp.prototype.computeFacetDistance=function(){var locGeom=[];var lines0=jsts.geom.util.LinearComponentExtracter.getLines(this.geom[0]);var lines1=jsts.geom.util.LinearComponentExtracter.getLines(this.geom[1]);var pts0=jsts.geom.util.PointExtracter.getPoints(this.geom[0]);var pts1=jsts.geom.util.PointExtracter.getPoints(this.geom[1]);this.computeMinDistanceLines(lines0,lines1,locGeom);this.updateMinDistance(locGeom,false);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistanceLinesPoints(lines0,pts1,locGeom);this.updateMinDistance(locGeom,false);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistanceLinesPoints(lines1,pts0,locGeom);this.updateMinDistance(locGeom,true);if(this.minDistance<=this.terminateDistance)return;locGeom[0]=null;locGeom[1]=null;this.computeMinDistancePoints(pts0,pts1,locGeom);this.updateMinDistance(locGeom,false)};jsts.operation.distance.DistanceOp.prototype.computeMinDistanceLines=function(lines0,lines1,locGeom){for(var i=0;i<lines0.length;i++){var line0=lines0[i];for(var j=0;j<lines1.length;j++){var line1=lines1[j];this.computeMinDistance(line0,line1,locGeom);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistancePoints=function(points0,points1,locGeom){for(var i=0;i<points0.length;i++){var pt0=points0[i];for(var j=0;j<points1.length;j++){var pt1=points1[j];var dist=pt0.getCoordinate().distance(pt1.getCoordinate());if(dist<this.minDistance){this.minDistance=dist;locGeom[0]=new jsts.operation.distance.GeometryLocation(pt0,0,pt0.getCoordinate());locGeom[1]=new jsts.operation.distance.GeometryLocation(pt1,0,pt1.getCoordinate())}if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistanceLinesPoints=function(lines,points,locGeom){for(var i=0;i<lines.length;i++){var line=lines[i];for(var j=0;j<points.length;j++){var pt=points[j];this.computeMinDistance(line,pt,locGeom);if(this.minDistance<=this.terminateDistance)return}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance2=function(line0,line1,locGeom){if(line1 instanceof jsts.geom.Point){this.computeMinDistance3(line0,line1,locGeom);return}if(line0.getEnvelopeInternal().distance(line1.getEnvelopeInternal())>this.minDistance){return}var coord0=line0.getCoordinates();var coord1=line1.getCoordinates();for(var i=0;i<coord0.length-1;i++){for(var j=0;j<coord1.length-1;j++){var dist=jsts.algorithm.CGAlgorithms.distanceLineLine(coord0[i],coord0[i+1],coord1[j],coord1[j+1]);if(dist<this.minDistance){this.minDistance=dist;var seg0=new jsts.geom.LineSegment(coord0[i],coord0[i+1]);var seg1=new jsts.geom.LineSegment(coord1[j],coord1[j+1]);var closestPt=seg0.closestPoints(seg1);locGeom[0]=new jsts.operation.distance.GeometryLocation(line0,i,closestPt[0]);locGeom[1]=new jsts.operation.distance.GeometryLocation(line1,j,closestPt[1])}if(this.minDistance<=this.terminateDistance){return}}}};jsts.operation.distance.DistanceOp.prototype.computeMinDistance3=function(line,pt,locGeom){if(line.getEnvelopeInternal().distance(pt.getEnvelopeInternal())>this.minDistance){return}var coord0=line.getCoordinates();var coord=pt.getCoordinate();for(var i=0;i<coord0.length-1;i++){var dist=jsts.algorithm.CGAlgorithms.distancePointLine(coord,coord0[i],coord0[i+1]);if(dist<this.minDistance){this.minDistance=dist;var seg=new jsts.geom.LineSegment(coord0[i],coord0[i+1]);var segClosestPoint=seg.closestPoint(coord);locGeom[0]=new jsts.operation.distance.GeometryLocation(line,i,segClosestPoint);locGeom[1]=new jsts.operation.distance.GeometryLocation(pt,0,coord)}if(this.minDistance<=this.terminateDistance){return}}};jsts.index.strtree.SIRtree=function(nodeCapacity){nodeCapacity=nodeCapacity||10;jsts.index.strtree.AbstractSTRtree.call(this,nodeCapacity)};jsts.index.strtree.SIRtree.prototype=new jsts.index.strtree.AbstractSTRtree;jsts.index.strtree.SIRtree.constructor=jsts.index.strtree.SIRtree;jsts.index.strtree.SIRtree.prototype.comperator={compare:function(o1,o2){return o1.getBounds().getCentre()-o2.getBounds().getCentre()}};jsts.index.strtree.SIRtree.prototype.intersectionOp={intersects:function(aBounds,bBounds){return aBounds.intersects(bBounds)}};jsts.index.strtree.SIRtree.prototype.createNode=function(level){var AbstractNode=function(level){jsts.index.strtree.AbstractNode.apply(this,arguments)};AbstractNode.prototype=new jsts.index.strtree.AbstractNode;AbstractNode.constructor=AbstractNode;AbstractNode.prototype.computeBounds=function(){var bounds=null,childBoundables=this.getChildBoundables(),childBoundable;for(var i=0,l=childBoundables.length;i<l;i++){childBoundable=childBoundables[i];if(bounds===null){bounds=new jsts.index.strtree.Interval(childBoundable.getBounds())}else{bounds.expandToInclude(childBoundable.getBounds())}}return bounds};return AbstractNode};jsts.index.strtree.SIRtree.prototype.insert=function(x1,x2,item){jsts.index.strtree.AbstractSTRtree.prototype.insert(new jsts.index.strtree.Interval(Math.min(x1,x2),Math.max(x1,x2)),item)};jsts.index.strtree.SIRtree.prototype.query=function(x1,x2){x2=x2||x1;jsts.index.strtree.AbstractSTRtree.prototype.query(new jsts.index.strtree.Interval(Math.min(x1,x2),Math.max(x1,x2)))};jsts.index.strtree.SIRtree.prototype.getIntersectsOp=function(){return this.intersectionOp};jsts.index.strtree.SIRtree.prototype.getComparator=function(){return this.comperator};jsts.simplify.DouglasPeuckerSimplifier=function(inputGeom){this.inputGeom=inputGeom;this.isEnsureValidTopology=true};jsts.simplify.DouglasPeuckerSimplifier.prototype.inputGeom=null;jsts.simplify.DouglasPeuckerSimplifier.prototype.distanceTolerance=null;jsts.simplify.DouglasPeuckerSimplifier.prototype.isEnsureValidTopology=null;jsts.simplify.DouglasPeuckerSimplifier.simplify=function(geom,distanceTolerance){var tss=new jsts.simplify.DouglasPeuckerSimplifier(geom);tss.setDistanceTolerance(distanceTolerance);return tss.getResultGeometry()};jsts.simplify.DouglasPeuckerSimplifier.prototype.setDistanceTolerance=function(distanceTolerance){if(distanceTolerance<0){throw"Tolerance must be non-negative"}this.distanceTolerance=distanceTolerance};jsts.simplify.DouglasPeuckerSimplifier.prototype.setEnsureValid=function(isEnsureValidTopology){this.isEnsureValidTopology=isEnsureValidTopology};jsts.simplify.DouglasPeuckerSimplifier.prototype.getResultGeometry=function(){if(this.inputGeom.isEmpty()){return this.inputGeom.clone()}return new jsts.simplify.DPTransformer(this.distanceTolerance,this.isEnsureValidTopology).transform(this.inputGeom)};(function(){jsts.operation.predicate.RectangleContains=function(rectangle){this.rectEnv=rectangle.getEnvelopeInternal()};jsts.operation.predicate.RectangleContains.contains=function(rectangle,b){var rc=new jsts.operation.predicate.RectangleContains(rectangle);return rc.contains(b)};jsts.operation.predicate.RectangleContains.prototype.rectEnv=null;jsts.operation.predicate.RectangleContains.prototype.contains=function(geom){if(!this.rectEnv.contains(geom.getEnvelopeInternal()))return false;if(this.isContainedInBoundary(geom))return false;return true};jsts.operation.predicate.RectangleContains.prototype.isContainedInBoundary=function(geom){if(geom instanceof jsts.geom.Polygon)return false;if(geom instanceof jsts.geom.Point)return this.isPointContainedInBoundary(geom.getCoordinate());if(geom instanceof jsts.geom.LineString)return this.isLineStringContainedInBoundary(geom);for(var i=0;i<geom.getNumGeometries();i++){var comp=geom.getGeometryN(i);if(!this.isContainedInBoundary(comp))return false}return true};jsts.operation.predicate.RectangleContains.prototype.isPointContainedInBoundary=function(pt){return pt.x==this.rectEnv.getMinX()||pt.x==this.rectEnv.getMaxX()||pt.y==this.rectEnv.getMinY()||pt.y==this.rectEnv.getMaxY()};jsts.operation.predicate.RectangleContains.prototype.isLineStringContainedInBoundary=function(line){var seq=line.getCoordinateSequence();for(var i=0;i<seq.length-1;i++){var p0=seq[i];var p1=seq[i+1];if(!this.isLineSegmentContainedInBoundary(p0,p1))return false}return true};jsts.operation.predicate.RectangleContains.prototype.isLineSegmentContainedInBoundary=function(p0,p1){if(p0.equals(p1))return this.isPointContainedInBoundary(p0);if(p0.x==p1.x){if(p0.x==this.rectEnv.getMinX()||p0.x==this.rectEnv.getMaxX())return true}else if(p0.y==p1.y){if(p0.y==this.rectEnv.getMinY()||p0.y==this.rectEnv.getMaxY())return true}return false}})();(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;jsts.geomgraph.Depth=function(){this.depth=[[],[]];for(var i=0;i<2;i++){for(var j=0;j<3;j++){this.depth[i][j]=jsts.geomgraph.Depth.NULL_VALUE}}};jsts.geomgraph.Depth.NULL_VALUE=-1;jsts.geomgraph.Depth.depthAtLocation=function(location){if(location===Location.EXTERIOR)return 0;if(location===Location.INTERIOR)return 1;return jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.depth=null;jsts.geomgraph.Depth.prototype.getDepth=function(geomIndex,posIndex){return this.depth[geomIndex][posIndex]};jsts.geomgraph.Depth.prototype.setDepth=function(geomIndex,posIndex,depthValue){this.depth[geomIndex][posIndex]=depthValue};jsts.geomgraph.Depth.prototype.getLocation=function(geomIndex,posIndex){if(this.depth[geomIndex][posIndex]<=0)return Location.EXTERIOR;return Location.INTERIOR};jsts.geomgraph.Depth.prototype.add=function(geomIndex,posIndex,location){if(location===Location.INTERIOR)this.depth[geomIndex][posIndex]++};jsts.geomgraph.Depth.prototype.isNull=function(){if(arguments.length>0){return this.isNull2.apply(this,arguments)}for(var i=0;i<2;i++){for(var j=0;j<3;j++){if(this.depth[i][j]!==jsts.geomgraph.Depth.NULL_VALUE)return false}}return true};jsts.geomgraph.Depth.prototype.isNull2=function(geomIndex){if(arguments.length>1){return this.isNull3.apply(this,arguments)}return this.depth[geomIndex][1]==jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.isNull3=function(geomIndex,posIndex){return this.depth[geomIndex][posIndex]==jsts.geomgraph.Depth.NULL_VALUE};jsts.geomgraph.Depth.prototype.add=function(lbl){for(var i=0;i<2;i++){for(var j=1;j<3;j++){var loc=lbl.getLocation(i,j);if(loc===Location.EXTERIOR||loc===Location.INTERIOR){if(this.isNull(i,j)){this.depth[i][j]=jsts.geomgraph.Depth.depthAtLocation(loc)}else this.depth[i][j]+=jsts.geomgraph.Depth.depthAtLocation(loc)}}}};jsts.geomgraph.Depth.prototype.getDelta=function(geomIndex){return this.depth[geomIndex][Position.RIGHT]-this.depth[geomIndex][Position.LEFT]};jsts.geomgraph.Depth.prototype.normalize=function(){for(var i=0;i<2;i++){if(!this.isNull(i)){var minDepth=this.depth[i][1];if(this.depth[i][2]<minDepth)minDepth=this.depth[i][2];if(minDepth<0)minDepth=0;for(var j=1;j<3;j++){var newValue=0;if(this.depth[i][j]>minDepth)newValue=1;this.depth[i][j]=newValue}}}};jsts.geomgraph.Depth.prototype.toString=function(){return"A: "+this.depth[0][1]+","+this.depth[0][2]+" B: "+this.depth[1][1]+","+this.depth[1][2]}})();jsts.algorithm.BoundaryNodeRule=function(){};jsts.algorithm.BoundaryNodeRule.prototype.isInBoundary=function(boundaryCount){throw new jsts.error.AbstractMethodInvocationError};jsts.algorithm.Mod2BoundaryNodeRule=function(){};jsts.algorithm.Mod2BoundaryNodeRule.prototype=new jsts.algorithm.BoundaryNodeRule;jsts.algorithm.Mod2BoundaryNodeRule.prototype.isInBoundary=function(boundaryCount){return boundaryCount%2===1};jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE=new jsts.algorithm.Mod2BoundaryNodeRule;jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE=jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE;jsts.operation.distance.GeometryLocation=function(component,segIndex,pt){this.component=component;this.segIndex=segIndex;this.pt=pt};jsts.operation.distance.GeometryLocation.INSIDE_AREA=-1;jsts.operation.distance.GeometryLocation.prototype.component=null;jsts.operation.distance.GeometryLocation.prototype.segIndex=null;jsts.operation.distance.GeometryLocation.prototype.pt=null;jsts.operation.distance.GeometryLocation.prototype.getGeometryComponent=function(){return this.component};jsts.operation.distance.GeometryLocation.prototype.getSegmentIndex=function(){return this.segIndex};jsts.operation.distance.GeometryLocation.prototype.getCoordinate=function(){return this.pt};jsts.operation.distance.GeometryLocation.prototype.isInsideArea=function(){return this.segIndex===jsts.operation.distance.GeometryLocation.INSIDE_AREA};jsts.geom.util.PointExtracter=function(pts){this.pts=pts};jsts.geom.util.PointExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.PointExtracter.prototype.pts=null;jsts.geom.util.PointExtracter.getPoints=function(geom,list){if(list===undefined){list=[]}if(geom instanceof jsts.geom.Point){list.push(geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){geom.apply(new jsts.geom.util.PointExtracter(list))}return list};jsts.geom.util.PointExtracter.prototype.filter=function(geom){if(geom instanceof jsts.geom.Point)this.pts.push(geom)};(function(){var Location=jsts.geom.Location;jsts.operation.relate.RelateNodeGraph=function(){this.nodes=new jsts.geomgraph.NodeMap(new jsts.operation.relate.RelateNodeFactory)};jsts.operation.relate.RelateNodeGraph.prototype.nodes=null;jsts.operation.relate.RelateNodeGraph.prototype.build=function(geomGraph){this.computeIntersectionNodes(geomGraph,0);this.copyNodesAndLabels(geomGraph,0);var eeBuilder=new jsts.operation.relate.EdgeEndBuilder;var eeList=eeBuilder.computeEdgeEnds(geomGraph.getEdgeIterator());this.insertEdgeEnds(eeList)};jsts.operation.relate.RelateNodeGraph.prototype.computeIntersectionNodes=function(geomGraph,argIndex){for(var edgeIt=geomGraph.getEdgeIterator();edgeIt.hasNext();){var e=edgeIt.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.getEdgeIntersectionList().iterator();eiIt.hasNext();){var ei=eiIt.next();var n=this.nodes.addNode(ei.coord);if(eLoc===Location.BOUNDARY)n.setLabelBoundary(argIndex);else{if(n.getLabel().isNull(argIndex))n.setLabel(argIndex,Location.INTERIOR)}}}};jsts.operation.relate.RelateNodeGraph.prototype.copyNodesAndLabels=function(geomGraph,argIndex){for(var nodeIt=geomGraph.getNodeIterator();nodeIt.hasNext();){var graphNode=nodeIt.next();var newNode=this.nodes.addNode(graphNode.getCoordinate());newNode.setLabel(argIndex,graphNode.getLabel().getLocation(argIndex))}};jsts.operation.relate.RelateNodeGraph.prototype.insertEdgeEnds=function(ee){for(var i=ee.iterator();i.hasNext();){var e=i.next();this.nodes.add(e)}};jsts.operation.relate.RelateNodeGraph.prototype.getNodeIterator=function(){return this.nodes.iterator()}})();jsts.geomgraph.index.SimpleSweepLineIntersector=function(){};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype=new jsts.geomgraph.index.EdgeSetIntersector;jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.events=[];jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.nOverlaps=null;jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections=function(edges,si,testAllSegments){if(si instanceof javascript.util.List){this.computeIntersections2.apply(this,arguments);return}if(testAllSegments){this.add(edges,null)}else{this.add(edges)}this.computeIntersections3(si)};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections2=function(edges0,edges1,si){this.add(edges0,edges0);this.add(edges1,edges1);this.computeIntersections3(si);
};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.add=function(edge,edgeSet){if(edge instanceof javascript.util.List){this.add2.apply(this,arguments);return}var pts=edge.getCoordinates();for(var i=0;i<pts.length-1;i++){var ss=new jsts.geomgraph.index.SweepLineSegment(edge,i);var insertEvent=new jsts.geomgraph.index.SweepLineEvent(ss.getMinX(),ss,edgeSet);this.events.push(insertEvent);this.events.push(new jsts.geomgraph.index.SweepLineEvent(ss.getMaxX(),insertEvent))}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.add2=function(edges,edgeSet){for(var i=edges.iterator();i.hasNext();){var edge=i.next();if(edgeSet){this.add(edge,edgeSet)}else{this.add(edge,edge)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.prepareEvents=function(){this.events.sort(function(a,b){return a.compareTo(b)});for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isDelete()){ev.getInsertEvent().setDeleteEventIndex(i)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.computeIntersections3=function(si){this.nOverlaps=0;this.prepareEvents();for(var i=0;i<this.events.length;i++){var ev=this.events[i];if(ev.isInsert()){this.processOverlaps(i,ev.getDeleteEventIndex(),ev,si)}}};jsts.geomgraph.index.SimpleSweepLineIntersector.prototype.processOverlaps=function(start,end,ev0,si){var ss0=ev0.getObject();for(var i=start;i<end;i++){var ev1=this.events[i];if(ev1.isInsert()){var ss1=ev1.getObject();if(!ev0.isSameLabel(ev1)){ss0.computeIntersections(ss1,si);this.nOverlaps++}}}};jsts.triangulate.VoronoiDiagramBuilder=function(){this.siteCoords=null;this.tolerance=0;this.subdiv=null;this.clipEnv=null;this.diagramEnv=null};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSites=function(){var arg=arguments[0];if(arg instanceof jsts.geom.Geometry||arg instanceof jsts.geom.Coordinate||arg instanceof jsts.geom.Point||arg instanceof jsts.geom.MultiPoint||arg instanceof jsts.geom.LineString||arg instanceof jsts.geom.MultiLineString||arg instanceof jsts.geom.LinearRing||arg instanceof jsts.geom.Polygon||arg instanceof jsts.geom.MultiPolygon){this.setSitesByGeometry(arg)}else{this.setSitesByArray(arg)}};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSitesByGeometry=function(geom){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates(geom)};jsts.triangulate.VoronoiDiagramBuilder.prototype.setSitesByArray=function(coords){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.VoronoiDiagramBuilder.prototype.setClipEnvelope=function(clipEnv){this.clipEnv=clipEnv};jsts.triangulate.VoronoiDiagramBuilder.prototype.setTolerance=function(tolerance){this.tolerance=tolerance};jsts.triangulate.VoronoiDiagramBuilder.prototype.create=function(){if(this.subdiv!==null){return}var siteEnv,expandBy,vertices,triangulator;siteEnv=jsts.triangulate.DelaunayTriangulationBuilder.envelope(this.siteCoords);this.diagramEnv=siteEnv;expandBy=Math.max(this.diagramEnv.getWidth(),this.diagramEnv.getHeight());this.diagramEnv.expandBy(expandBy);if(this.clipEnv!==null){this.diagramEnv.expandToInclude(this.clipEnv)}vertices=jsts.triangulate.DelaunayTriangulationBuilder.toVertices(this.siteCoords);this.subdiv=new jsts.triangulate.quadedge.QuadEdgeSubdivision(siteEnv,this.tolerance);triangulator=new jsts.triangulate.IncrementalDelaunayTriangulator(this.subdiv);triangulator.insertSites(vertices)};jsts.triangulate.VoronoiDiagramBuilder.prototype.getSubdivision=function(){this.create();return this.subdiv};jsts.triangulate.VoronoiDiagramBuilder.prototype.getDiagram=function(geomFact){this.create();var polys=this.subdiv.getVoronoiDiagram(geomFact);return this.clipGeometryCollection(polys,this.diagramEnv)};jsts.triangulate.VoronoiDiagramBuilder.prototype.clipGeometryCollection=function(geom,clipEnv){var clipPoly,clipped,i,il,g,result;clipPoly=geom.getFactory().toGeometry(clipEnv);clipped=[];i=0,il=geom.getNumGeometries();for(i;i<il;i++){g=geom.getGeometryN(i);result=null;if(clipEnv.contains(g.getEnvelopeInternal())){result=g}else if(clipEnv.intersects(g.getEnvelopeInternal())){result=clipPoly.intersection(g)}if(result!==null&&!result.isEmpty()){clipped.push(result)}}return geom.getFactory().createGeometryCollection(clipped)};jsts.operation.valid.IndexedNestedRingTester=function(graph){this.graph=graph;this.rings=new javascript.util.ArrayList;this.totalEnv=new jsts.geom.Envelope;this.index=null;this.nestedPt=null};jsts.operation.valid.IndexedNestedRingTester.prototype.getNestedPoint=function(){return this.nestedPt};jsts.operation.valid.IndexedNestedRingTester.prototype.add=function(ring){this.rings.add(ring);this.totalEnv.expandToInclude(ring.getEnvelopeInternal())};jsts.operation.valid.IndexedNestedRingTester.prototype.isNonNested=function(){this.buildIndex();for(var i=0;i<this.rings.size();i++){var innerRing=this.rings.get(i);var innerRingPts=innerRing.getCoordinates();var results=this.index.query(innerRing.getEnvelopeInternal());for(var j=0;j<results.length;j++){var searchRing=results[j];var searchRingPts=searchRing.getCoordinates();if(innerRing==searchRing){continue}if(!innerRing.getEnvelopeInternal().intersects(searchRing.getEnvelopeInternal())){continue}var innerRingPt=jsts.operation.valid.IsValidOp.findPtNotNode(innerRingPts,searchRing,this.graph);if(innerRingPt==null){continue}var isInside=jsts.algorithm.CGAlgorithms.isPointInRing(innerRingPt,searchRingPts);if(isInside){this.nestedPt=innerRingPt;return false}}}return true};jsts.operation.valid.IndexedNestedRingTester.prototype.buildIndex=function(){this.index=new jsts.index.strtree.STRtree;for(var i=0;i<this.rings.size();i++){var ring=this.rings.get(i);var env=ring.getEnvelopeInternal();this.index.insert(env,ring)}};jsts.geomgraph.index.MonotoneChain=function(mce,chainIndex){this.mce=mce;this.chainIndex=chainIndex};jsts.geomgraph.index.MonotoneChain.prototype.mce=null;jsts.geomgraph.index.MonotoneChain.prototype.chainIndex=null;jsts.geomgraph.index.MonotoneChain.prototype.computeIntersections=function(mc,si){this.mce.computeIntersectsForChain(this.chainIndex,mc.mce,mc.chainIndex,si)};jsts.noding.SegmentNode=function(segString,coord,segmentIndex,segmentOctant){this.segString=segString;this.coord=new jsts.geom.Coordinate(coord);this.segmentIndex=segmentIndex;this.segmentOctant=segmentOctant;this._isInterior=!coord.equals2D(segString.getCoordinate(segmentIndex))};jsts.noding.SegmentNode.prototype.segString=null;jsts.noding.SegmentNode.prototype.coord=null;jsts.noding.SegmentNode.prototype.segmentIndex=null;jsts.noding.SegmentNode.prototype.segmentOctant=null;jsts.noding.SegmentNode.prototype._isInterior=null;jsts.noding.SegmentNode.prototype.getCoordinate=function(){return this.coord};jsts.noding.SegmentNode.prototype.isInterior=function(){return this._isInterior};jsts.noding.SegmentNode.prototype.isEndPoint=function(maxSegmentIndex){if(this.segmentIndex===0&&!this._isInterior)return true;if(this.segmentIndex===this.maxSegmentIndex)return true;return false};jsts.noding.SegmentNode.prototype.compareTo=function(obj){var other=obj;if(this.segmentIndex<other.segmentIndex)return-1;if(this.segmentIndex>other.segmentIndex)return 1;if(this.coord.equals2D(other.coord))return 0;return jsts.noding.SegmentPointComparator.compare(this.segmentOctant,this.coord,other.coord)};(function(){jsts.io.GeoJSONWriter=function(){this.parser=new jsts.io.GeoJSONParser(this.geometryFactory)};jsts.io.GeoJSONWriter.prototype.write=function(geometry){var geoJson=this.parser.write(geometry);return geoJson}})();jsts.io.OpenLayersParser=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory};jsts.io.OpenLayersParser.prototype.read=function(geometry){if(geometry.CLASS_NAME==="OpenLayers.Geometry.Point"){return this.convertFromPoint(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.LineString"){return this.convertFromLineString(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.LinearRing"){return this.convertFromLinearRing(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.Polygon"){return this.convertFromPolygon(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiPoint"){return this.convertFromMultiPoint(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiLineString"){return this.convertFromMultiLineString(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.MultiPolygon"){return this.convertFromMultiPolygon(geometry)}else if(geometry.CLASS_NAME==="OpenLayers.Geometry.Collection"){return this.convertFromCollection(geometry)}};jsts.io.OpenLayersParser.prototype.convertFromPoint=function(point){return this.geometryFactory.createPoint(new jsts.geom.Coordinate(point.x,point.y))};jsts.io.OpenLayersParser.prototype.convertFromLineString=function(lineString){var i;var coordinates=[];for(i=0;i<lineString.components.length;i++){coordinates.push(new jsts.geom.Coordinate(lineString.components[i].x,lineString.components[i].y))}return this.geometryFactory.createLineString(coordinates)};jsts.io.OpenLayersParser.prototype.convertFromLinearRing=function(linearRing){var i;var coordinates=[];for(i=0;i<linearRing.components.length;i++){coordinates.push(new jsts.geom.Coordinate(linearRing.components[i].x,linearRing.components[i].y))}return this.geometryFactory.createLinearRing(coordinates)};jsts.io.OpenLayersParser.prototype.convertFromPolygon=function(polygon){var i;var shell=null;var holes=[];for(i=0;i<polygon.components.length;i++){var linearRing=this.convertFromLinearRing(polygon.components[i]);if(i===0){shell=linearRing}else{holes.push(linearRing)}}return this.geometryFactory.createPolygon(shell,holes)};jsts.io.OpenLayersParser.prototype.convertFromMultiPoint=function(multiPoint){var i;var points=[];for(i=0;i<multiPoint.components.length;i++){points.push(this.convertFromPoint(multiPoint.components[i]))}return this.geometryFactory.createMultiPoint(points)};jsts.io.OpenLayersParser.prototype.convertFromMultiLineString=function(multiLineString){var i;var lineStrings=[];for(i=0;i<multiLineString.components.length;i++){lineStrings.push(this.convertFromLineString(multiLineString.components[i]))}return this.geometryFactory.createMultiLineString(lineStrings)};jsts.io.OpenLayersParser.prototype.convertFromMultiPolygon=function(multiPolygon){var i;var polygons=[];for(i=0;i<multiPolygon.components.length;i++){polygons.push(this.convertFromPolygon(multiPolygon.components[i]))}return this.geometryFactory.createMultiPolygon(polygons)};jsts.io.OpenLayersParser.prototype.convertFromCollection=function(collection){var i;var geometries=[];for(i=0;i<collection.components.length;i++){geometries.push(this.read(collection.components[i]))}return this.geometryFactory.createGeometryCollection(geometries)};jsts.io.OpenLayersParser.prototype.write=function(geometry){if(geometry.CLASS_NAME==="jsts.geom.Point"){return this.convertToPoint(geometry.coordinate)}else if(geometry.CLASS_NAME==="jsts.geom.LineString"){return this.convertToLineString(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.LinearRing"){return this.convertToLinearRing(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.Polygon"){return this.convertToPolygon(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiPoint"){return this.convertToMultiPoint(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiLineString"){return this.convertToMultiLineString(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.MultiPolygon"){return this.convertToMultiPolygon(geometry)}else if(geometry.CLASS_NAME==="jsts.geom.GeometryCollection"){return this.convertToCollection(geometry)}};jsts.io.OpenLayersParser.prototype.convertToPoint=function(coordinate){return new OpenLayers.Geometry.Point(coordinate.x,coordinate.y)};jsts.io.OpenLayersParser.prototype.convertToLineString=function(lineString){var i;var points=[];for(i=0;i<lineString.points.length;i++){var coordinate=lineString.points[i];points.push(this.convertToPoint(coordinate))}return new OpenLayers.Geometry.LineString(points)};jsts.io.OpenLayersParser.prototype.convertToLinearRing=function(linearRing){var i;var points=[];for(i=0;i<linearRing.points.length;i++){var coordinate=linearRing.points[i];points.push(this.convertToPoint(coordinate))}return new OpenLayers.Geometry.LinearRing(points)};jsts.io.OpenLayersParser.prototype.convertToPolygon=function(polygon){var i;var rings=[];rings.push(this.convertToLinearRing(polygon.shell));for(i=0;i<polygon.holes.length;i++){var ring=polygon.holes[i];rings.push(this.convertToLinearRing(ring))}return new OpenLayers.Geometry.Polygon(rings)};jsts.io.OpenLayersParser.prototype.convertToMultiPoint=function(multiPoint){var i;var points=[];for(i=0;i<multiPoint.geometries.length;i++){var coordinate=multiPoint.geometries[i].coordinate;points.push(new OpenLayers.Geometry.Point(coordinate.x,coordinate.y))}return new OpenLayers.Geometry.MultiPoint(points)};jsts.io.OpenLayersParser.prototype.convertToMultiLineString=function(multiLineString){var i;var lineStrings=[];for(i=0;i<multiLineString.geometries.length;i++){lineStrings.push(this.convertToLineString(multiLineString.geometries[i]))}return new OpenLayers.Geometry.MultiLineString(lineStrings)};jsts.io.OpenLayersParser.prototype.convertToMultiPolygon=function(multiPolygon){var i;var polygons=[];for(i=0;i<multiPolygon.geometries.length;i++){polygons.push(this.convertToPolygon(multiPolygon.geometries[i]))}return new OpenLayers.Geometry.MultiPolygon(polygons)};jsts.io.OpenLayersParser.prototype.convertToCollection=function(geometryCollection){var i;var geometries=[];for(i=0;i<geometryCollection.geometries.length;i++){var geometry=geometryCollection.geometries[i];var geometryOpenLayers=this.write(geometry);geometries.push(geometryOpenLayers)}return new OpenLayers.Geometry.Collection(geometries)};jsts.index.quadtree.Quadtree=function(){this.root=new jsts.index.quadtree.Root;this.minExtent=1};jsts.index.quadtree.Quadtree.ensureExtent=function(itemEnv,minExtent){var minx,maxx,miny,maxy;minx=itemEnv.getMinX();maxx=itemEnv.getMaxX();miny=itemEnv.getMinY();maxy=itemEnv.getMaxY();if(minx!==maxx&&miny!==maxy){return itemEnv}if(minx===maxx){minx=minx-minExtent/2;maxx=minx+minExtent/2}if(miny===maxy){miny=miny-minExtent/2;maxy=miny+minExtent/2}return new jsts.geom.Envelope(minx,maxx,miny,maxy)};jsts.index.quadtree.Quadtree.prototype.depth=function(){return this.root.depth()};jsts.index.quadtree.Quadtree.prototype.size=function(){return this.root.size()};jsts.index.quadtree.Quadtree.prototype.insert=function(itemEnv,item){this.collectStats(itemEnv);var insertEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);this.root.insert(insertEnv,item)};jsts.index.quadtree.Quadtree.prototype.remove=function(itemEnv,item){var posEnv=jsts.index.quadtree.Quadtree.ensureExtent(itemEnv,this.minExtent);return this.root.remove(posEnv,item)};jsts.index.quadtree.Quadtree.prototype.query=function(){if(arguments.length===1){return jsts.index.quadtree.Quadtree.prototype.queryByEnvelope.apply(this,arguments)}else{jsts.index.quadtree.Quadtree.prototype.queryWithVisitor.apply(this,arguments)}};jsts.index.quadtree.Quadtree.prototype.queryByEnvelope=function(searchEnv){var visitor=new jsts.index.ArrayListVisitor;this.query(searchEnv,visitor);return visitor.getItems()};jsts.index.quadtree.Quadtree.prototype.queryWithVisitor=function(searchEnv,visitor){this.root.visit(searchEnv,visitor)};jsts.index.quadtree.Quadtree.prototype.queryAll=function(){var foundItems=[];foundItems=this.root.addAllItems(foundItems);return foundItems};jsts.index.quadtree.Quadtree.prototype.collectStats=function(itemEnv){var delX=itemEnv.getWidth();if(delX<this.minExtent&&delX>0){this.minExtent=delX}var delY=itemEnv.getHeight();if(delY<this.minExtent&&delY>0){this.minExtent=delY}};jsts.operation.relate.RelateNodeFactory=function(){};jsts.operation.relate.RelateNodeFactory.prototype=new jsts.geomgraph.NodeFactory;jsts.operation.relate.RelateNodeFactory.prototype.createNode=function(coord){return new jsts.operation.relate.RelateNode(coord,new jsts.operation.relate.EdgeEndBundleStar)};jsts.index.quadtree.Key=function(itemEnv){this.pt=new jsts.geom.Coordinate;this.level=0;this.env=null;this.computeKey(itemEnv)};jsts.index.quadtree.Key.computeQuadLevel=function(env){var dx,dy,dMax,level;dx=env.getWidth();dy=env.getHeight();dMax=dx>dy?dx:dy;level=jsts.index.DoubleBits.exponent(dMax)+1;return level};jsts.index.quadtree.Key.prototype.getPoint=function(){return this.pt};jsts.index.quadtree.Key.prototype.getLevel=function(){return this.level};jsts.index.quadtree.Key.prototype.getEnvelope=function(){return this.env};jsts.index.quadtree.Key.prototype.getCentre=function(){var x,y;x=(this.env.getMinX()+this.env.getMaxX())/2;y=(this.env.getMinY()+this.env.getMaxY())/2;return new jsts.geom.Coordinate(x,y)};jsts.index.quadtree.Key.prototype.computeKey=function(){if(arguments[0]instanceof jsts.geom.Envelope){this.computeKeyFromEnvelope(arguments[0])}else{this.computeKeyFromLevel(arguments[0],arguments[1])}};jsts.index.quadtree.Key.prototype.computeKeyFromEnvelope=function(env){this.level=jsts.index.quadtree.Key.computeQuadLevel(env);this.env=new jsts.geom.Envelope;this.computeKey(this.level,env);while(!this.env.contains(env)){this.level+=1;this.computeKey(this.level,env)}};jsts.index.quadtree.Key.prototype.computeKeyFromLevel=function(level,env){var quadSize=jsts.index.DoubleBits.powerOf2(level);this.pt.x=Math.floor(env.getMinX()/quadSize)*quadSize;this.pt.y=Math.floor(env.getMinY()/quadSize)*quadSize;this.env.init(this.pt.x,this.pt.x+quadSize,this.pt.y,this.pt.y+quadSize)};jsts.geom.CoordinateArrays=function(){throw new jsts.error.AbstractMethodInvocationError};jsts.geom.CoordinateArrays.copyDeep=function(){if(arguments.length===1){return jsts.geom.CoordinateArrays.copyDeep1(arguments[0])}else if(arguments.length===5){jsts.geom.CoordinateArrays.copyDeep2(arguments[0],arguments[1],arguments[2],arguments[3],arguments[4])}};jsts.geom.CoordinateArrays.copyDeep1=function(coordinates){var copy=[];for(var i=0;i<coordinates.length;i++){copy[i]=new jsts.geom.Coordinate(coordinates[i])}return copy};jsts.geom.CoordinateArrays.copyDeep2=function(src,srcStart,dest,destStart,length){for(var i=0;i<length;i++){dest[destStart+i]=new jsts.geom.Coordinate(src[srcStart+i])}};jsts.geom.CoordinateArrays.removeRepeatedPoints=function(coord){var coordList;if(!this.hasRepeatedPoints(coord)){return coord}coordList=new jsts.geom.CoordinateList(coord,false);return coordList.toCoordinateArray()};jsts.geom.CoordinateArrays.hasRepeatedPoints=function(coord){var i;for(i=1;i<coord.length;i++){if(coord[i-1].equals(coord[i])){return true}}return false};jsts.geom.CoordinateArrays.ptNotInList=function(testPts,pts){for(var i=0;i<testPts.length;i++){var testPt=testPts[i];if(jsts.geom.CoordinateArrays.indexOf(testPt,pts)<0)return testPt}return null};jsts.geom.CoordinateArrays.increasingDirection=function(pts){for(var i=0;i<parseInt(pts.length/2);i++){var j=pts.length-1-i;var comp=pts[i].compareTo(pts[j]);if(comp!=0)return comp}return 1};jsts.geom.CoordinateArrays.minCoordinate=function(coordinates){var minCoord=null;for(var i=0;i<coordinates.length;i++){if(minCoord===null||minCoord.compareTo(coordinates[i])>0){minCoord=coordinates[i]}}return minCoord};jsts.geom.CoordinateArrays.scroll=function(coordinates,firstCoordinate){var i=jsts.geom.CoordinateArrays.indexOf(firstCoordinate,coordinates);if(i<0)return;var newCoordinates=coordinates.slice(i).concat(coordinates.slice(0,i));for(i=0;i<newCoordinates.length;i++){coordinates[i]=newCoordinates[i]}};jsts.geom.CoordinateArrays.indexOf=function(coordinate,coordinates){for(var i=0;i<coordinates.length;i++){if(coordinate.equals(coordinates[i])){return i}}return-1};jsts.operation.overlay.MinimalEdgeRing=function(start,geometryFactory){jsts.geomgraph.EdgeRing.call(this,start,geometryFactory)};jsts.operation.overlay.MinimalEdgeRing.prototype=new jsts.geomgraph.EdgeRing;jsts.operation.overlay.MinimalEdgeRing.constructor=jsts.operation.overlay.MinimalEdgeRing;jsts.operation.overlay.MinimalEdgeRing.prototype.getNext=function(de){return de.getNextMin()};jsts.operation.overlay.MinimalEdgeRing.prototype.setEdgeRing=function(de,er){de.setMinEdgeRing(er)};jsts.triangulate.DelaunayTriangulationBuilder=function(){this.siteCoords=null;this.tolerance=0;this.subdiv=null};jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates=function(geom){if(geom===undefined||geom===null){return new jsts.geom.CoordinateList([],false).toArray()}var coords=geom.getCoordinates();return jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.DelaunayTriangulationBuilder.unique=function(coords){coords.sort(function(a,b){return a.compareTo(b)});var coordList=new jsts.geom.CoordinateList(coords,false);return coordList.toArray()};jsts.triangulate.DelaunayTriangulationBuilder.toVertices=function(coords){var verts=new Array(coords.length),i=0,il=coords.length,coord;for(i;i<il;i++){coord=coords[i];verts[i]=new jsts.triangulate.quadedge.Vertex(coord)}return verts};jsts.triangulate.DelaunayTriangulationBuilder.envelope=function(coords){var env=new jsts.geom.Envelope,i=0,il=coords.length;for(i;i<il;i++){env.expandToInclude(coords[i])}return env};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSites=function(){var arg=arguments[0];if(arg instanceof jsts.geom.Geometry||arg instanceof jsts.geom.Coordinate||arg instanceof jsts.geom.Point||arg instanceof jsts.geom.MultiPoint||arg instanceof jsts.geom.LineString||arg instanceof jsts.geom.MultiLineString||arg instanceof jsts.geom.LinearRing||arg instanceof jsts.geom.Polygon||arg instanceof jsts.geom.MultiPolygon){this.setSitesFromGeometry(arg)}else{this.setSitesFromCollection(arg)}};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSitesFromGeometry=function(geom){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.extractUniqueCoordinates(geom)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setSitesFromCollection=function(coords){this.siteCoords=jsts.triangulate.DelaunayTriangulationBuilder.unique(coords)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.setTolerance=function(tolerance){this.tolerance=tolerance};jsts.triangulate.DelaunayTriangulationBuilder.prototype.create=function(){if(this.subdiv===null){var siteEnv,vertices,triangulator;siteEnv=jsts.triangulate.DelaunayTriangulationBuilder.envelope(this.siteCoords);vertices=jsts.triangulate.DelaunayTriangulationBuilder.toVertices(this.siteCoords);this.subdiv=new jsts.triangulate.quadedge.QuadEdgeSubdivision(siteEnv,this.tolerance);triangulator=new jsts.triangulate.IncrementalDelaunayTriangulator(this.subdiv);triangulator.insertSites(vertices)}};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getSubdivision=function(){this.create();return this.subdiv};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getEdges=function(geomFact){this.create();return this.subdiv.getEdges(geomFact)};jsts.triangulate.DelaunayTriangulationBuilder.prototype.getTriangles=function(geomFact){this.create();return this.subdiv.getTriangles(geomFact)};jsts.algorithm.RayCrossingCounter=function(p){this.p=p};jsts.algorithm.RayCrossingCounter.locatePointInRing=function(p,ring){var counter=new jsts.algorithm.RayCrossingCounter(p);for(var i=1;i<ring.length;i++){var p1=ring[i];var p2=ring[i-1];counter.countSegment(p1,p2);if(counter.isOnSegment())return counter.getLocation()}return counter.getLocation()};jsts.algorithm.RayCrossingCounter.prototype.p=null;jsts.algorithm.RayCrossingCounter.prototype.crossingCount=0;jsts.algorithm.RayCrossingCounter.prototype.isPointOnSegment=false;jsts.algorithm.RayCrossingCounter.prototype.countSegment=function(p1,p2){if(p1.x<this.p.x&&p2.x<this.p.x)return;if(this.p.x==p2.x&&this.p.y===p2.y){this.isPointOnSegment=true;return}if(p1.y===this.p.y&&p2.y===this.p.y){var minx=p1.x;var maxx=p2.x;if(minx>maxx){minx=p2.x;maxx=p1.x}if(this.p.x>=minx&&this.p.x<=maxx){this.isPointOnSegment=true}return}if(p1.y>this.p.y&&p2.y<=this.p.y||p2.y>this.p.y&&p1.y<=this.p.y){var x1=p1.x-this.p.x;var y1=p1.y-this.p.y;var x2=p2.x-this.p.x;var y2=p2.y-this.p.y;var xIntSign=jsts.algorithm.RobustDeterminant.signOfDet2x2(x1,y1,x2,y2);if(xIntSign===0){this.isPointOnSegment=true;return}if(y2<y1)xIntSign=-xIntSign;if(xIntSign>0){this.crossingCount++}}};jsts.algorithm.RayCrossingCounter.prototype.isOnSegment=function(){return jsts.geom.isPointOnSegment};jsts.algorithm.RayCrossingCounter.prototype.getLocation=function(){if(this.isPointOnSegment)return jsts.geom.Location.BOUNDARY;if(this.crossingCount%2===1){return jsts.geom.Location.INTERIOR}return jsts.geom.Location.EXTERIOR};jsts.algorithm.RayCrossingCounter.prototype.isPointInPolygon=function(){return this.getLocation()!==jsts.geom.Location.EXTERIOR};jsts.operation.BoundaryOp=function(geom,bnRule){this.geom=geom;this.geomFact=geom.getFactory();this.bnRule=bnRule||jsts.algorithm.BoundaryNodeRule.MOD2_BOUNDARY_RULE};jsts.operation.BoundaryOp.prototype.geom=null;jsts.operation.BoundaryOp.prototype.geomFact=null;jsts.operation.BoundaryOp.prototype.bnRule=null;jsts.operation.BoundaryOp.prototype.getBoundary=function(){if(this.geom instanceof jsts.geom.LineString)return this.boundaryLineString(this.geom);if(this.geom instanceof jsts.geom.MultiLineString)return this.boundaryMultiLineString(this.geom);return this.geom.getBoundary()};jsts.operation.BoundaryOp.prototype.getEmptyMultiPoint=function(){return this.geomFact.createMultiPoint(null)};jsts.operation.BoundaryOp.prototype.boundaryMultiLineString=function(mLine){if(this.geom.isEmpty()){return this.getEmptyMultiPoint()}var bdyPts=this.computeBoundaryCoordinates(mLine);if(bdyPts.length==1){return this.geomFact.createPoint(bdyPts[0])}return this.geomFact.createMultiPoint(bdyPts)};jsts.operation.BoundaryOp.prototype.endpoints=null;jsts.operation.BoundaryOp.prototype.computeBoundaryCoordinates=function(mLine){var i,line,endpoint,bdyPts=[];this.endpoints=[];for(i=0;i<mLine.getNumGeometries();i++){line=mLine.getGeometryN(i);if(line.getNumPoints()==0)continue;this.addEndpoint(line.getCoordinateN(0));this.addEndpoint(line.getCoordinateN(line.getNumPoints()-1))}for(i=0;i<this.endpoints.length;i++){endpoint=this.endpoints[i];if(this.bnRule.isInBoundary(endpoint.count)){bdyPts.push(endpoint.coordinate)}}return bdyPts};jsts.operation.BoundaryOp.prototype.addEndpoint=function(pt){var i,endpoint,found=false;for(i=0;i<this.endpoints.length;i++){endpoint=this.endpoints[i];if(endpoint.coordinate.equals(pt)){found=true;break}}if(!found){endpoint={};endpoint.coordinate=pt;endpoint.count=0;this.endpoints.push(endpoint)}endpoint.count++};jsts.operation.BoundaryOp.prototype.boundaryLineString=function(line){if(this.geom.isEmpty()){return this.getEmptyMultiPoint()}if(line.isClosed()){var closedEndpointOnBoundary=this.bnRule.isInBoundary(2);if(closedEndpointOnBoundary){return line.getStartPoint()}else{return this.geomFact.createMultiPoint(null)}}return this.geomFact.createMultiPoint([line.getStartPoint(),line.getEndPoint()])};jsts.operation.buffer.OffsetCurveSetBuilder=function(inputGeom,distance,curveBuilder){this.inputGeom=inputGeom;this.distance=distance;this.curveBuilder=curveBuilder;this.curveList=new javascript.util.ArrayList};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.inputGeom=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.distance=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.curveBuilder=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.curveList=null;jsts.operation.buffer.OffsetCurveSetBuilder.prototype.getCurves=function(){this.add(this.inputGeom);return this.curveList};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addCurve=function(coord,leftLoc,rightLoc){if(coord==null||coord.length<2)return;var e=new jsts.noding.NodedSegmentString(coord,new jsts.geomgraph.Label(0,jsts.geom.Location.BOUNDARY,leftLoc,rightLoc));this.curveList.add(e)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.add=function(g){if(g.isEmpty())return;if(g instanceof jsts.geom.Polygon)this.addPolygon(g);else if(g instanceof jsts.geom.LineString)this.addLineString(g);else if(g instanceof jsts.geom.Point)this.addPoint(g);else if(g instanceof jsts.geom.MultiPoint)this.addCollection(g);else if(g instanceof jsts.geom.MultiLineString)this.addCollection(g);else if(g instanceof jsts.geom.MultiPolygon)this.addCollection(g);else if(g instanceof jsts.geom.GeometryCollection)this.addCollection(g);else throw new jsts.error.IllegalArgumentError};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.add(g)}};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPoint=function(p){if(this.distance<=0)return;var coord=p.getCoordinates();var curve=this.curveBuilder.getLineCurve(coord,this.distance);this.addCurve(curve,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addLineString=function(line){if(this.distance<=0&&!this.curveBuilder.getBufferParameters().isSingleSided())return;var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());var curve=this.curveBuilder.getLineCurve(coord,this.distance);this.addCurve(curve,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPolygon=function(p){var offsetDistance=this.distance;var offsetSide=jsts.geomgraph.Position.LEFT;if(this.distance<0){offsetDistance=-this.distance;offsetSide=jsts.geomgraph.Position.RIGHT}var shell=p.getExteriorRing();var shellCoord=jsts.geom.CoordinateArrays.removeRepeatedPoints(shell.getCoordinates());if(this.distance<0&&this.isErodedCompletely(shell,this.distance))return;if(this.distance<=0&&shellCoord.length<3)return;this.addPolygonRing(shellCoord,offsetDistance,offsetSide,jsts.geom.Location.EXTERIOR,jsts.geom.Location.INTERIOR);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);var holeCoord=jsts.geom.CoordinateArrays.removeRepeatedPoints(hole.getCoordinates());if(this.distance>0&&this.isErodedCompletely(hole,-this.distance))continue;this.addPolygonRing(holeCoord,offsetDistance,jsts.geomgraph.Position.opposite(offsetSide),jsts.geom.Location.INTERIOR,jsts.geom.Location.EXTERIOR)}};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.addPolygonRing=function(coord,offsetDistance,side,cwLeftLoc,cwRightLoc){if(offsetDistance==0&&coord.length<jsts.geom.LinearRing.MINIMUM_VALID_SIZE)return;var leftLoc=cwLeftLoc;var rightLoc=cwRightLoc;if(coord.length>=jsts.geom.LinearRing.MINIMUM_VALID_SIZE&&jsts.algorithm.CGAlgorithms.isCCW(coord)){leftLoc=cwRightLoc;rightLoc=cwLeftLoc;side=jsts.geomgraph.Position.opposite(side)}var curve=this.curveBuilder.getRingCurve(coord,side,offsetDistance);this.addCurve(curve,leftLoc,rightLoc)};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isErodedCompletely=function(ring,bufferDistance){var ringCoord=ring.getCoordinates();var minDiam=0;if(ringCoord.length<4)return bufferDistance<0;if(ringCoord.length==4)return this.isTriangleErodedCompletely(ringCoord,bufferDistance);var env=ring.getEnvelopeInternal();var envMinDimension=Math.min(env.getHeight(),env.getWidth());if(bufferDistance<0&&2*Math.abs(bufferDistance)>envMinDimension)return true;return false};jsts.operation.buffer.OffsetCurveSetBuilder.prototype.isTriangleErodedCompletely=function(triangleCoord,bufferDistance){var tri=new jsts.geom.Triangle(triangleCoord[0],triangleCoord[1],triangleCoord[2]);var inCentre=tri.inCentre();var distToCentre=jsts.algorithm.CGAlgorithms.distancePointLine(inCentre,tri.p0,tri.p1);return distToCentre<Math.abs(bufferDistance)};jsts.operation.buffer.BufferSubgraph=function(){this.dirEdgeList=new javascript.util.ArrayList;this.nodes=new javascript.util.ArrayList;this.finder=new jsts.operation.buffer.RightmostEdgeFinder};jsts.operation.buffer.BufferSubgraph.prototype.finder=null;jsts.operation.buffer.BufferSubgraph.prototype.dirEdgeList=null;jsts.operation.buffer.BufferSubgraph.prototype.nodes=null;
jsts.operation.buffer.BufferSubgraph.prototype.rightMostCoord=null;jsts.operation.buffer.BufferSubgraph.prototype.env=null;jsts.operation.buffer.BufferSubgraph.prototype.getDirectedEdges=function(){return this.dirEdgeList};jsts.operation.buffer.BufferSubgraph.prototype.getNodes=function(){return this.nodes};jsts.operation.buffer.BufferSubgraph.prototype.getEnvelope=function(){if(this.env===null){var edgeEnv=new jsts.geom.Envelope;for(var it=this.dirEdgeList.iterator();it.hasNext();){var dirEdge=it.next();var pts=dirEdge.getEdge().getCoordinates();for(var j=0;j<pts.length-1;j++){edgeEnv.expandToInclude(pts[j])}}this.env=edgeEnv}return this.env};jsts.operation.buffer.BufferSubgraph.prototype.getRightmostCoordinate=function(){return this.rightMostCoord};jsts.operation.buffer.BufferSubgraph.prototype.create=function(node){this.addReachable(node);this.finder.findEdge(this.dirEdgeList);this.rightMostCoord=this.finder.getCoordinate()};jsts.operation.buffer.BufferSubgraph.prototype.addReachable=function(startNode){var nodeStack=[];nodeStack.push(startNode);while(nodeStack.length!==0){var node=nodeStack.pop();this.add(node,nodeStack)}};jsts.operation.buffer.BufferSubgraph.prototype.add=function(node,nodeStack){node.setVisited(true);this.nodes.add(node);for(var i=node.getEdges().iterator();i.hasNext();){var de=i.next();this.dirEdgeList.add(de);var sym=de.getSym();var symNode=sym.getNode();if(!symNode.isVisited())nodeStack.push(symNode)}};jsts.operation.buffer.BufferSubgraph.prototype.clearVisitedEdges=function(){for(var it=this.dirEdgeList.iterator();it.hasNext();){var de=it.next();de.setVisited(false)}};jsts.operation.buffer.BufferSubgraph.prototype.computeDepth=function(outsideDepth){this.clearVisitedEdges();var de=this.finder.getEdge();var n=de.getNode();var label=de.getLabel();de.setEdgeDepths(jsts.geomgraph.Position.RIGHT,outsideDepth);this.copySymDepths(de);this.computeDepths(de)};jsts.operation.buffer.BufferSubgraph.prototype.computeDepths=function(startEdge){var nodesVisited=[];var nodeQueue=[];var startNode=startEdge.getNode();nodeQueue.push(startNode);nodesVisited.push(startNode);startEdge.setVisited(true);while(nodeQueue.length!==0){var n=nodeQueue.shift();nodesVisited.push(n);this.computeNodeDepth(n);for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();var sym=de.getSym();if(sym.isVisited())continue;var adjNode=sym.getNode();if(nodesVisited.indexOf(adjNode)===-1){nodeQueue.push(adjNode);nodesVisited.push(adjNode)}}}};jsts.operation.buffer.BufferSubgraph.prototype.computeNodeDepth=function(n){var startEdge=null;for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();if(de.isVisited()||de.getSym().isVisited()){startEdge=de;break}}if(startEdge==null)throw new jsts.error.TopologyError("unable to find edge to compute depths at "+n.getCoordinate());n.getEdges().computeDepths(startEdge);for(var i=n.getEdges().iterator();i.hasNext();){var de=i.next();de.setVisited(true);this.copySymDepths(de)}};jsts.operation.buffer.BufferSubgraph.prototype.copySymDepths=function(de){var sym=de.getSym();sym.setDepth(jsts.geomgraph.Position.LEFT,de.getDepth(jsts.geomgraph.Position.RIGHT));sym.setDepth(jsts.geomgraph.Position.RIGHT,de.getDepth(jsts.geomgraph.Position.LEFT))};jsts.operation.buffer.BufferSubgraph.prototype.findResultEdges=function(){for(var it=this.dirEdgeList.iterator();it.hasNext();){var de=it.next();if(de.getDepth(jsts.geomgraph.Position.RIGHT)>=1&&de.getDepth(jsts.geomgraph.Position.LEFT)<=0&&!de.isInteriorAreaEdge()){de.setInResult(true)}}};jsts.operation.buffer.BufferSubgraph.prototype.compareTo=function(o){var graph=o;if(this.rightMostCoord.x<graph.rightMostCoord.x){return-1}if(this.rightMostCoord.x>graph.rightMostCoord.x){return 1}return 0};jsts.simplify.DPTransformer=function(distanceTolerance,isEnsureValidTopology){this.distanceTolerance=distanceTolerance;this.isEnsureValidTopology=isEnsureValidTopology};jsts.simplify.DPTransformer.prototype=new jsts.geom.util.GeometryTransformer;jsts.simplify.DPTransformer.prototype.distanceTolerance=null;jsts.simplify.DPTransformer.prototype.isEnsureValidTopology=null;jsts.simplify.DPTransformer.prototype.transformCoordinates=function(coords,parent){var inputPts=coords;var newPts=null;if(inputPts.length==0){newPts=[]}else{newPts=jsts.simplify.DouglasPeuckerLineSimplifier.simplify(inputPts,this.distanceTolerance)}return newPts};jsts.simplify.DPTransformer.prototype.transformPolygon=function(geom,parent){if(geom.isEmpty()){return null}var rawGeom=jsts.geom.util.GeometryTransformer.prototype.transformPolygon.apply(this,arguments);if(parent instanceof jsts.geom.MultiPolygon){return rawGeom}return this.createValidArea(rawGeom)};jsts.simplify.DPTransformer.prototype.transformLinearRing=function(geom,parent){var removeDegenerateRings=parent instanceof jsts.geom.Polygon;var simpResult=jsts.geom.util.GeometryTransformer.prototype.transformLinearRing.apply(this,arguments);if(removeDegenerateRings&&!(simpResult instanceof jsts.geom.LinearRing)){return null}return simpResult};jsts.simplify.DPTransformer.prototype.transformMultiPolygon=function(geom,parent){var rawGeom=jsts.geom.util.GeometryTransformer.prototype.transformMultiPolygon.apply(this,arguments);return this.createValidArea(rawGeom)};jsts.simplify.DPTransformer.prototype.createValidArea=function(rawAreaGeom){if(this.isEnsureValidTopology){return rawAreaGeom.buffer(0)}return rawAreaGeom};jsts.geom.util.GeometryExtracter=function(clz,comps){this.clz=clz;this.comps=comps};jsts.geom.util.GeometryExtracter.prototype=new jsts.geom.GeometryFilter;jsts.geom.util.GeometryExtracter.prototype.clz=null;jsts.geom.util.GeometryExtracter.prototype.comps=null;jsts.geom.util.GeometryExtracter.extract=function(geom,clz,list){list=list||new javascript.util.ArrayList;if(geom instanceof clz){list.add(geom)}else if(geom instanceof jsts.geom.GeometryCollection||geom instanceof jsts.geom.MultiPoint||geom instanceof jsts.geom.MultiLineString||geom instanceof jsts.geom.MultiPolygon){geom.apply(new jsts.geom.util.GeometryExtracter(clz,list))}return list};jsts.geom.util.GeometryExtracter.prototype.filter=function(geom){if(this.clz===null||geom instanceof this.clz){this.comps.add(geom)}};(function(){var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapOverlayOp=jsts.operation.overlay.snap.SnapOverlayOp;var SnapIfNeededOverlayOp=function(g1,g2){this.geom=[];this.geom[0]=g1;this.geom[1]=g2};SnapIfNeededOverlayOp.overlayOp=function(g0,g1,opCode){var op=new SnapIfNeededOverlayOp(g0,g1);return op.getResultGeometry(opCode)};SnapIfNeededOverlayOp.intersection=function(g0,g1){return overlayOp(g0,g1,OverlayOp.INTERSECTION)};SnapIfNeededOverlayOp.union=function(g0,g1){return overlayOp(g0,g1,OverlayOp.UNION)};SnapIfNeededOverlayOp.difference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.DIFFERENCE)};SnapIfNeededOverlayOp.symDifference=function(g0,g1){return overlayOp(g0,g1,OverlayOp.SYMDIFFERENCE)};SnapIfNeededOverlayOp.prototype.geom=null;SnapIfNeededOverlayOp.prototype.getResultGeometry=function(opCode){var result=null;var isSuccess=false;var savedException=null;try{result=OverlayOp.overlayOp(this.geom[0],this.geom[1],opCode);var isValid=true;if(isValid)isSuccess=true}catch(ex){savedException=ex}if(!isSuccess){try{result=SnapOverlayOp.overlayOp(this.geom[0],this.geom[1],opCode)}catch(ex){throw savedException}}return result};jsts.operation.overlay.snap.SnapIfNeededOverlayOp=SnapIfNeededOverlayOp})();(function(){var GeometryExtracter=jsts.geom.util.GeometryExtracter;var CascadedPolygonUnion=jsts.operation.union.CascadedPolygonUnion;var PointGeometryUnion=jsts.operation.union.PointGeometryUnion;var OverlayOp=jsts.operation.overlay.OverlayOp;var SnapIfNeededOverlayOp=jsts.operation.overlay.snap.SnapIfNeededOverlayOp;var ArrayList=javascript.util.ArrayList;jsts.operation.union.UnaryUnionOp=function(geoms,geomFact){this.polygons=new ArrayList;this.lines=new ArrayList;this.points=new ArrayList;if(geomFact){this.geomFact=geomFact}this.extract(geoms)};jsts.operation.union.UnaryUnionOp.union=function(geoms,geomFact){var op=new jsts.operation.union.UnaryUnionOp(geoms,geomFact);return op.union()};jsts.operation.union.UnaryUnionOp.prototype.polygons=null;jsts.operation.union.UnaryUnionOp.prototype.lines=null;jsts.operation.union.UnaryUnionOp.prototype.points=null;jsts.operation.union.UnaryUnionOp.prototype.geomFact=null;jsts.operation.union.UnaryUnionOp.prototype.extract=function(geoms){if(geoms instanceof ArrayList){for(var i=geoms.iterator();i.hasNext();){var geom=i.next();this.extract(geom)}}else{if(this.geomFact===null){this.geomFact=geoms.getFactory()}GeometryExtracter.extract(geoms,jsts.geom.Polygon,this.polygons);GeometryExtracter.extract(geoms,jsts.geom.LineString,this.lines);GeometryExtracter.extract(geoms,jsts.geom.Point,this.points)}};jsts.operation.union.UnaryUnionOp.prototype.union=function(){if(this.geomFact===null){return null}var unionPoints=null;if(this.points.size()>0){var ptGeom=this.geomFact.buildGeometry(this.points);unionPoints=this.unionNoOpt(ptGeom)}var unionLines=null;if(this.lines.size()>0){var lineGeom=this.geomFact.buildGeometry(this.lines);unionLines=this.unionNoOpt(lineGeom)}var unionPolygons=null;if(this.polygons.size()>0){unionPolygons=CascadedPolygonUnion.union(this.polygons)}var unionLA=this.unionWithNull(unionLines,unionPolygons);var union=null;if(unionPoints===null){union=unionLA}else if(unionLA===null){union=unionPoints}else{union=PointGeometryUnion(unionPoints,unionLA)}if(union===null){return this.geomFact.createGeometryCollection(null)}return union};jsts.operation.union.UnaryUnionOp.prototype.unionWithNull=function(g0,g1){if(g0===null&&g1===null){return null}if(g1===null){return g0}if(g0===null){return g1}return g0.union(g1)};jsts.operation.union.UnaryUnionOp.prototype.unionNoOpt=function(g0){var empty=this.geomFact.createPoint(null);return SnapIfNeededOverlayOp.overlayOp(g0,empty,OverlayOp.UNION)}})();jsts.index.kdtree.KdNode=function(){this.left=null;this.right=null;this.count=1;if(arguments.length===2){this.initializeFromCoordinate.apply(this,arguments[0],arguments[1])}else if(arguments.length===3){this.initializeFromXY.apply(this,arguments[0],arguments[1],arguments[2])}};jsts.index.kdtree.KdNode.prototype.initializeFromXY=function(x,y,data){this.p=new jsts.geom.Coordinate(x,y);this.data=data};jsts.index.kdtree.KdNode.prototype.initializeFromCoordinate=function(p,data){this.p=p;this.data=data};jsts.index.kdtree.KdNode.prototype.getX=function(){return this.p.x};jsts.index.kdtree.KdNode.prototype.getY=function(){return this.p.y};jsts.index.kdtree.KdNode.prototype.getCoordinate=function(){return this.p};jsts.index.kdtree.KdNode.prototype.getData=function(){return this.data};jsts.index.kdtree.KdNode.prototype.getLeft=function(){return this.left};jsts.index.kdtree.KdNode.prototype.getRight=function(){return this.right};jsts.index.kdtree.KdNode.prototype.increment=function(){this.count+=1};jsts.index.kdtree.KdNode.prototype.getCount=function(){return this.count};jsts.index.kdtree.KdNode.prototype.isRepeated=function(){return count>1};jsts.index.kdtree.KdNode.prototype.setLeft=function(left){this.left=left};jsts.index.kdtree.KdNode.prototype.setRight=function(right){this.right=right};jsts.algorithm.InteriorPointPoint=function(geometry){this.minDistance=Number.MAX_VALUE;this.interiorPoint=null;this.centroid=geometry.getCentroid().getCoordinate();this.add(geometry)};jsts.algorithm.InteriorPointPoint.prototype.add=function(geometry){if(geometry instanceof jsts.geom.Point){this.addPoint(geometry.getCoordinate())}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.add(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointPoint.prototype.addPoint=function(point){var dist=point.distance(this.centroid);if(dist<this.minDistance){this.interiorPoint=new jsts.geom.Coordinate(point);this.minDistance=dist}};jsts.algorithm.InteriorPointPoint.prototype.getInteriorPoint=function(){return this.interiorPoint};(function(){jsts.geom.MultiLineString=function(geometries,factory){this.geometries=geometries||[];this.factory=factory};jsts.geom.MultiLineString.prototype=new jsts.geom.GeometryCollection;jsts.geom.MultiLineString.constructor=jsts.geom.MultiLineString;jsts.geom.MultiLineString.prototype.getBoundary=function(){return new jsts.operation.BoundaryOp(this).getBoundary()};jsts.geom.MultiLineString.prototype.equalsExact=function(other,tolerance){if(!this.isEquivalentClass(other)){return false}return jsts.geom.GeometryCollection.prototype.equalsExact.call(this,other,tolerance)};jsts.geom.MultiLineString.prototype.CLASS_NAME="jsts.geom.MultiLineString"})();(function(){var Interval=jsts.index.bintree.Interval;var Root=jsts.index.bintree.Root;var Bintree=function(){this.root=new Root;this.minExtent=1};Bintree.ensureExtent=function(itemInterval,minExtent){var min,max;min=itemInterval.getMin();max=itemInterval.getMax();if(min!==max){return itemInterval}if(min===max){min=min-minExtent/2;max=min+minExtent/2}return new Interval(min,max)};Bintree.prototype.depth=function(){if(this.root!==null){return this.root.depth()}return 0};Bintree.prototype.size=function(){if(this.root!==null){return this.root.size()}return 0};Bintree.prototype.nodeSize=function(){if(this.root!==null){return this.root.nodeSize()}return 0};Bintree.prototype.insert=function(itemInterval,item){this.collectStats(itemInterval);var insertInterval=Bintree.ensureExtent(itemInterval,this.minExtent);this.root.insert(insertInterval,item)};Bintree.prototype.remove=function(itemInterval,item){var insertInterval=Bintree.ensureExtent(itemInterval,this.minExtent);return this.root.remove(insertInterval,item)};Bintree.prototype.iterator=function(){var foundItems=new javascript.util.ArrayList;this.root.addAllItems(foundItems);return foundItems.iterator()};Bintree.prototype.query=function(){if(arguments.length===2){this.queryAndAdd(arguments[0],arguments[1])}else{var x=arguments[0];if(!x instanceof Interval){x=new Interval(x,x)}return this.queryInterval(x)}};Bintree.prototype.queryInterval=function(interval){var foundItems=new javascript.util.ArrayList;this.query(interval,foundItems);return foundItems};Bintree.prototype.queryAndAdd=function(interval,foundItems){this.root.addAllItemsFromOverlapping(interval,foundItems)};Bintree.prototype.collectStats=function(interval){var del=interval.getWidth();if(del<this.minExtent&&del>0){this.minExtent=del}};jsts.index.bintree.Bintree=Bintree})();jsts.algorithm.InteriorPointArea=function(geometry){this.factory;this.interiorPoint=null;this.maxWidth=0;this.factory=geometry.getFactory();this.add(geometry)};jsts.algorithm.InteriorPointArea.avg=function(a,b){return(a+b)/2};jsts.algorithm.InteriorPointArea.prototype.getInteriorPoint=function(){return this.interiorPoint};jsts.algorithm.InteriorPointArea.prototype.add=function(geometry){if(geometry instanceof jsts.geom.Polygon){this.addPolygon(geometry)}else if(geometry instanceof jsts.geom.GeometryCollection){for(var i=0;i<geometry.getNumGeometries();i++){this.add(geometry.getGeometryN(i))}}};jsts.algorithm.InteriorPointArea.prototype.addPolygon=function(geometry){if(geometry.isEmpty()){return}var intPt;var width=0;var bisector=this.horizontalBisector(geometry);if(bisector.getLength()==0){width=0;intPt=bisector.getCoordinate()}else{var intersections=bisector.intersection(geometry);var widestIntersection=this.widestGeometry(intersections);width=widestIntersection.getEnvelopeInternal().getWidth();intPt=this.centre(widestIntersection.getEnvelopeInternal())}if(this.interiorPoint==null||width>this.maxWidth){this.interiorPoint=intPt;this.maxWidth=width}};jsts.algorithm.InteriorPointArea.prototype.widestGeometry=function(obj){if(obj instanceof jsts.geom.GeometryCollection){var gc=obj;if(gc.isEmpty()){return gc}var widestGeometry=gc.getGeometryN(0);for(var i=1;i<gc.getNumGeometries();i++){if(gc.getGeometryN(i).getEnvelopeInternal().getWidth()>widestGeometry.getEnvelopeInternal().getWidth()){widestGeometry=gc.getGeometryN(i)}}return widestGeometry}else if(obj instanceof jsts.geom.Geometry){return obj}};jsts.algorithm.InteriorPointArea.prototype.horizontalBisector=function(geometry){var envelope=geometry.getEnvelopeInternal();var bisectY=jsts.algorithm.SafeBisectorFinder.getBisectorY(geometry);return this.factory.createLineString([new jsts.geom.Coordinate(envelope.getMinX(),bisectY),new jsts.geom.Coordinate(envelope.getMaxX(),bisectY)])};jsts.algorithm.InteriorPointArea.prototype.centre=function(envelope){return new jsts.geom.Coordinate(jsts.algorithm.InteriorPointArea.avg(envelope.getMinX(),envelope.getMaxX()),jsts.algorithm.InteriorPointArea.avg(envelope.getMinY(),envelope.getMaxY()))};jsts.algorithm.SafeBisectorFinder=function(poly){this.poly;this.centreY;this.hiY=Number.MAX_VALUE;this.loY=-Number.MAX_VALUE;this.poly=poly;this.hiY=poly.getEnvelopeInternal().getMaxY();this.loY=poly.getEnvelopeInternal().getMinY();this.centreY=jsts.algorithm.InteriorPointArea.avg(this.loY,this.hiY)};jsts.algorithm.SafeBisectorFinder.getBisectorY=function(poly){var finder=new jsts.algorithm.SafeBisectorFinder(poly);return finder.getBisectorY()};jsts.algorithm.SafeBisectorFinder.prototype.getBisectorY=function(){this.process(this.poly.getExteriorRing());for(var i=0;i<this.poly.getNumInteriorRing();i++){this.process(this.poly.getInteriorRingN(i))}var bisectY=jsts.algorithm.InteriorPointArea.avg(this.hiY,this.loY);return bisectY};jsts.algorithm.SafeBisectorFinder.prototype.process=function(line){var seq=line.getCoordinateSequence();for(var i=0;i<seq.length;i++){var y=seq[i].y;this.updateInterval(y)}};jsts.algorithm.SafeBisectorFinder.prototype.updateInterval=function(y){if(y<=this.centreY){if(y>this.loY){this.loY=y}}else if(y>this.centreY){if(y<this.hiY){this.hiY=y}}};jsts.operation.buffer.BufferParameters=function(quadrantSegments,endCapStyle,joinStyle,mitreLimit){if(quadrantSegments)this.setQuadrantSegments(quadrantSegments);if(endCapStyle)this.setEndCapStyle(endCapStyle);if(joinStyle)this.setJoinStyle(joinStyle);if(mitreLimit)this.setMitreLimit(mitreLimit)};jsts.operation.buffer.BufferParameters.CAP_ROUND=1;jsts.operation.buffer.BufferParameters.CAP_FLAT=2;jsts.operation.buffer.BufferParameters.CAP_SQUARE=3;jsts.operation.buffer.BufferParameters.JOIN_ROUND=1;jsts.operation.buffer.BufferParameters.JOIN_MITRE=2;jsts.operation.buffer.BufferParameters.JOIN_BEVEL=3;jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS=8;jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT=5;jsts.operation.buffer.BufferParameters.prototype.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS;jsts.operation.buffer.BufferParameters.prototype.endCapStyle=jsts.operation.buffer.BufferParameters.CAP_ROUND;jsts.operation.buffer.BufferParameters.prototype.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_ROUND;jsts.operation.buffer.BufferParameters.prototype.mitreLimit=jsts.operation.buffer.BufferParameters.DEFAULT_MITRE_LIMIT;jsts.operation.buffer.BufferParameters.prototype._isSingleSided=false;jsts.operation.buffer.BufferParameters.prototype.getQuadrantSegments=function(){return this.quadrantSegments};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadrantSegments){this.quadrantSegments=quadrantSegments};jsts.operation.buffer.BufferParameters.prototype.setQuadrantSegments=function(quadSegs){this.quadrantSegments=quadSegs;if(this.quadrantSegments===0)this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_BEVEL;if(this.quadrantSegments<0){this.joinStyle=jsts.operation.buffer.BufferParameters.JOIN_MITRE;this.mitreLimit=Math.abs(this.quadrantSegments)}if(quadSegs<=0){this.quadrantSegments=1}if(this.joinStyle!==jsts.operation.buffer.BufferParameters.JOIN_ROUND){this.quadrantSegments=jsts.operation.buffer.BufferParameters.DEFAULT_QUADRANT_SEGMENTS}};jsts.operation.buffer.BufferParameters.bufferDistanceError=function(quadSegs){var alpha=Math.PI/2/quadSegs;return 1-Math.cos(alpha/2)};jsts.operation.buffer.BufferParameters.prototype.getEndCapStyle=function(){return this.endCapStyle};jsts.operation.buffer.BufferParameters.prototype.setEndCapStyle=function(endCapStyle){this.endCapStyle=endCapStyle};jsts.operation.buffer.BufferParameters.prototype.getJoinStyle=function(){return this.joinStyle};jsts.operation.buffer.BufferParameters.prototype.setJoinStyle=function(joinStyle){this.joinStyle=joinStyle};jsts.operation.buffer.BufferParameters.prototype.getMitreLimit=function(){return this.mitreLimit};jsts.operation.buffer.BufferParameters.prototype.setMitreLimit=function(mitreLimit){this.mitreLimit=mitreLimit};jsts.operation.buffer.BufferParameters.prototype.setSingleSided=function(isSingleSided){this._isSingleSided=isSingleSided};jsts.operation.buffer.BufferParameters.prototype.isSingleSided=function(){return this._isSingleSided};(function(){jsts.geom.util.ShortCircuitedGeometryVisitor=function(){};jsts.geom.util.ShortCircuitedGeometryVisitor.prototype.isDone=false;jsts.geom.util.ShortCircuitedGeometryVisitor.prototype.applyTo=function(geom){for(var i=0;i<geom.getNumGeometries()&&!this.isDone;i++){var element=geom.getGeometryN(i);if(!(element instanceof jsts.geom.GeometryCollection)){this.visit(element);if(this.isDone()){this.isDone=true;return}}else this.applyTo(element)}};jsts.geom.util.ShortCircuitedGeometryVisitor.prototype.visit=function(element){};jsts.geom.util.ShortCircuitedGeometryVisitor.prototype.isDone=function(){}})();(function(){var EnvelopeIntersectsVisitor=function(rectEnv){this.rectEnv=rectEnv};EnvelopeIntersectsVisitor.prototype=new jsts.geom.util.ShortCircuitedGeometryVisitor;EnvelopeIntersectsVisitor.constructor=EnvelopeIntersectsVisitor;EnvelopeIntersectsVisitor.prototype.rectEnv=null;EnvelopeIntersectsVisitor.prototype.intersects=false;EnvelopeIntersectsVisitor.prototype.intersects=function(){return this.intersects};EnvelopeIntersectsVisitor.prototype.visit=function(element){var elementEnv=element.getEnvelopeInternal();if(!this.rectEnv.intersects(elementEnv)){return}if(this.rectEnv.contains(elementEnv)){this.intersects=true;return}if(elementEnv.getMinX()>=rectEnv.getMinX()&&elementEnv.getMaxX()<=rectEnv.getMaxX()){this.intersects=true;return}if(elementEnv.getMinY()>=rectEnv.getMinY()&&elementEnv.getMaxY()<=rectEnv.getMaxY()){this.intersects=true;return}};EnvelopeIntersectsVisitor.prototype.isDone=function(){return this.intersects==true};var GeometryContainsPointVisitor=function(rectangle){this.rectSeq=rectangle.getExteriorRing().getCoordinateSequence();this.rectEnv=rectangle.getEnvelopeInternal()};GeometryContainsPointVisitor.prototype=new jsts.geom.util.ShortCircuitedGeometryVisitor;GeometryContainsPointVisitor.constructor=GeometryContainsPointVisitor;GeometryContainsPointVisitor.prototype.rectSeq=null;GeometryContainsPointVisitor.prototype.rectEnv=null;GeometryContainsPointVisitor.prototype.containsPoint=false;GeometryContainsPointVisitor.prototype.containsPoint=function(){return this.containsPoint};GeometryContainsPointVisitor.prototype.visit=function(geom){if(!(geom instanceof jsts.geom.Polygon))return;var elementEnv=geom.getEnvelopeInternal();if(!this.rectEnv.intersects(elementEnv))return;var rectPt=new jsts.geom.Coordinate;for(var i=0;i<4;i++){this.rectSeq.getCoordinate(i,rectPt);if(!elementEnv.contains(rectPt))continue;if(SimplePointInAreaLocator.containsPointInPolygon(rectPt,geom)){this.containsPoint=true;return}}};GeometryContainsPointVisitor.prototype.isDone=function(){return this.containsPoint==true};var RectangleIntersectsSegmentVisitor=function(rectangle){this.rectEnv=rectangle.getEnvelopeInternal();this.rectIntersector=new RectangleLineIntersector(rectEnv)};RectangleIntersectsSegmentVisitor.prototype=new jsts.geom.util.ShortCircuitedGeometryVisitor;RectangleIntersectsSegmentVisitor.constructor=RectangleIntersectsSegmentVisitor;RectangleIntersectsSegmentVisitor.prototype.rectEnv=null;RectangleIntersectsSegmentVisitor.prototype.rectIntersector=null;RectangleIntersectsSegmentVisitor.prototype.hasIntersection=false;RectangleIntersectsSegmentVisitor.prototype.p0=null;RectangleIntersectsSegmentVisitor.prototype.p1=null;RectangleIntersectsSegmentVisitor.prototype.intersects=function(){return this.hasIntersection};RectangleIntersectsSegmentVisitor.prototype.visit=function(geom){var elementEnv=geom.getEnvelopeInternal();if(!this.rectEnv.intersects(elementEnv))return;var lines=LinearComponentExtracter.getLines(geom);this.checkIntersectionWithLineStrings(lines)};RectangleIntersectsSegmentVisitor.prototype.checkIntersectionWithLineStrings=function(lines){for(var i=lines.iterator();i.hasNext();){var testLine=i.next();this.checkIntersectionWithSegments(testLine);if(this.hasIntersection)return}};RectangleIntersectsSegmentVisitor.prototype.checkIntersectionWithSegments=function(testLine){var seq1=testLine.getCoordinateSequence();for(var j=1;j<seq1.length;j++){this.p0=seq1[j-1];this.p1=seq1[j];if(rectIntersector.intersects(p0,p1)){this.hasIntersection=true;return}}};RectangleIntersectsSegmentVisitor.prototype.isDone=function(){return this.hasIntersection==true};jsts.operation.predicate.RectangleIntersects=function(rectangle){this.rectangle=rectangle;this.rectEnv=rectangle.getEnvelopeInternal()};jsts.operation.predicate.RectangleIntersects.intersects=function(rectangle,b){var rp=new jsts.operation.predicate.RectangleIntersects(rectangle);return rp.intersects(b)};jsts.operation.predicate.RectangleIntersects.prototype.rectangle=null;jsts.operation.predicate.RectangleIntersects.prototype.rectEnv=null;jsts.operation.predicate.RectangleIntersects.prototype.intersects=function(geom){if(!this.rectEnv.intersects(geom.getEnvelopeInternal()))return false;var visitor=new EnvelopeIntersectsVisitor(this.rectEnv);visitor.applyTo(geom);if(visitor.intersects())return true;var ecpVisitor=new GeometryContainsPointVisitor(rectangle);ecpVisitor.applyTo(geom);if(ecpVisitor.containsPoint())return true;var riVisitor=new RectangleIntersectsSegmentVisitor(rectangle);riVisitor.applyTo(geom);if(riVisitor.intersects())return true;return false}})();jsts.operation.buffer.BufferBuilder=function(bufParams){this.bufParams=bufParams;this.edgeList=new jsts.geomgraph.EdgeList};jsts.operation.buffer.BufferBuilder.depthDelta=function(label){var lLoc=label.getLocation(0,jsts.geomgraph.Position.LEFT);var rLoc=label.getLocation(0,jsts.geomgraph.Position.RIGHT);if(lLoc===jsts.geom.Location.INTERIOR&&rLoc===jsts.geom.Location.EXTERIOR)return 1;else if(lLoc===jsts.geom.Location.EXTERIOR&&rLoc===jsts.geom.Location.INTERIOR)return-1;return 0};jsts.operation.buffer.BufferBuilder.prototype.bufParams=null;jsts.operation.buffer.BufferBuilder.prototype.workingPrecisionModel=null;jsts.operation.buffer.BufferBuilder.prototype.workingNoder=null;jsts.operation.buffer.BufferBuilder.prototype.geomFact=null;jsts.operation.buffer.BufferBuilder.prototype.graph=null;jsts.operation.buffer.BufferBuilder.prototype.edgeList=null;jsts.operation.buffer.BufferBuilder.prototype.setWorkingPrecisionModel=function(pm){this.workingPrecisionModel=pm};jsts.operation.buffer.BufferBuilder.prototype.setNoder=function(noder){this.workingNoder=noder};jsts.operation.buffer.BufferBuilder.prototype.buffer=function(g,distance){var precisionModel=this.workingPrecisionModel;if(precisionModel===null)precisionModel=g.getPrecisionModel();this.geomFact=g.getFactory();var curveBuilder=new jsts.operation.buffer.OffsetCurveBuilder(precisionModel,this.bufParams);var curveSetBuilder=new jsts.operation.buffer.OffsetCurveSetBuilder(g,distance,curveBuilder);var bufferSegStrList=curveSetBuilder.getCurves();if(bufferSegStrList.size()<=0){return this.createEmptyResultGeometry()}this.computeNodedEdges(bufferSegStrList,precisionModel);this.graph=new jsts.geomgraph.PlanarGraph(new jsts.operation.overlay.OverlayNodeFactory);this.graph.addEdges(this.edgeList.getEdges());var subgraphList=this.createSubgraphs(this.graph);var polyBuilder=new jsts.operation.overlay.PolygonBuilder(this.geomFact);this.buildSubgraphs(subgraphList,polyBuilder);var resultPolyList=polyBuilder.getPolygons();if(resultPolyList.size()<=0){return this.createEmptyResultGeometry()}var resultGeom=this.geomFact.buildGeometry(resultPolyList);return resultGeom};jsts.operation.buffer.BufferBuilder.prototype.getNoder=function(precisionModel){if(this.workingNoder!==null)return this.workingNoder;var noder=new jsts.noding.MCIndexNoder;var li=new jsts.algorithm.RobustLineIntersector;li.setPrecisionModel(precisionModel);noder.setSegmentIntersector(new jsts.noding.IntersectionAdder(li));return noder};jsts.operation.buffer.BufferBuilder.prototype.computeNodedEdges=function(bufferSegStrList,precisionModel){var noder=this.getNoder(precisionModel);noder.computeNodes(bufferSegStrList);var nodedSegStrings=noder.getNodedSubstrings();for(var i=nodedSegStrings.iterator();i.hasNext();){var segStr=i.next();var oldLabel=segStr.getData();var edge=new jsts.geomgraph.Edge(segStr.getCoordinates(),new jsts.geomgraph.Label(oldLabel));this.insertUniqueEdge(edge)}};jsts.operation.buffer.BufferBuilder.prototype.insertUniqueEdge=function(e){var existingEdge=this.edgeList.findEqualEdge(e);if(existingEdge!=null){var existingLabel=existingEdge.getLabel();var labelToMerge=e.getLabel();if(!existingEdge.isPointwiseEqual(e)){labelToMerge=new jsts.geomgraph.Label(e.getLabel());labelToMerge.flip()}existingLabel.merge(labelToMerge);var mergeDelta=jsts.operation.buffer.BufferBuilder.depthDelta(labelToMerge);var existingDelta=existingEdge.getDepthDelta();var newDelta=existingDelta+mergeDelta;existingEdge.setDepthDelta(newDelta)}else{this.edgeList.add(e);e.setDepthDelta(jsts.operation.buffer.BufferBuilder.depthDelta(e.getLabel()))}};jsts.operation.buffer.BufferBuilder.prototype.createSubgraphs=function(graph){var subgraphList=[];for(var i=graph.getNodes().iterator();i.hasNext();){var node=i.next();if(!node.isVisited()){var subgraph=new jsts.operation.buffer.BufferSubgraph;subgraph.create(node);subgraphList.push(subgraph)}}var compare=function(a,b){return a.compareTo(b)};subgraphList.sort(compare);subgraphList.reverse();return subgraphList};jsts.operation.buffer.BufferBuilder.prototype.buildSubgraphs=function(subgraphList,polyBuilder){var processedGraphs=[];for(var i=0;i<subgraphList.length;i++){var subgraph=subgraphList[i];var p=subgraph.getRightmostCoordinate();var locater=new jsts.operation.buffer.SubgraphDepthLocater(processedGraphs);var outsideDepth=locater.getDepth(p);subgraph.computeDepth(outsideDepth);subgraph.findResultEdges();processedGraphs.push(subgraph);polyBuilder.add(subgraph.getDirectedEdges(),subgraph.getNodes())}};jsts.operation.buffer.BufferBuilder.convertSegStrings=function(it){var fact=new jsts.geom.GeometryFactory;var lines=new javascript.util.ArrayList;while(it.hasNext()){var ss=it.next();var line=fact.createLineString(ss.getCoordinates());lines.add(line)}return fact.buildGeometry(lines)};jsts.operation.buffer.BufferBuilder.prototype.createEmptyResultGeometry=function(){var emptyGeom=this.geomFact.createPolygon(null,null);return emptyGeom};jsts.noding.SegmentPointComparator=function(){};jsts.noding.SegmentPointComparator.compare=function(octant,p0,p1){if(p0.equals2D(p1))return 0;var xSign=jsts.noding.SegmentPointComparator.relativeSign(p0.x,p1.x);var ySign=jsts.noding.SegmentPointComparator.relativeSign(p0.y,p1.y);switch(octant){case 0:return jsts.noding.SegmentPointComparator.compareValue(xSign,ySign);case 1:return jsts.noding.SegmentPointComparator.compareValue(ySign,xSign);case 2:return jsts.noding.SegmentPointComparator.compareValue(ySign,-xSign);case 3:return jsts.noding.SegmentPointComparator.compareValue(-xSign,ySign);case 4:return jsts.noding.SegmentPointComparator.compareValue(-xSign,-ySign);case 5:return jsts.noding.SegmentPointComparator.compareValue(-ySign,-xSign);case 6:return jsts.noding.SegmentPointComparator.compareValue(-ySign,xSign);case 7:return jsts.noding.SegmentPointComparator.compareValue(xSign,-ySign)}return 0};jsts.noding.SegmentPointComparator.relativeSign=function(x0,x1){if(x0<x1)return-1;if(x0>x1)return 1;return 0};jsts.noding.SegmentPointComparator.compareValue=function(compareSign0,compareSign1){
if(compareSign0<0)return-1;if(compareSign0>0)return 1;if(compareSign1<0)return-1;if(compareSign1>0)return 1;return 0};jsts.operation.relate.RelateOp=function(){jsts.operation.GeometryGraphOperation.apply(this,arguments);this._relate=new jsts.operation.relate.RelateComputer(this.arg)};jsts.operation.relate.RelateOp.prototype=new jsts.operation.GeometryGraphOperation;jsts.operation.relate.RelateOp.relate=function(a,b,boundaryNodeRule){var relOp=new jsts.operation.relate.RelateOp(a,b,boundaryNodeRule);var im=relOp.getIntersectionMatrix();return im};jsts.operation.relate.RelateOp.prototype._relate=null;jsts.operation.relate.RelateOp.prototype.getIntersectionMatrix=function(){return this._relate.computeIM()};jsts.index.chain.MonotoneChain=function(pts,start,end,context){this.pts=pts;this.start=start;this.end=end;this.context=context};jsts.index.chain.MonotoneChain.prototype.pts=null;jsts.index.chain.MonotoneChain.prototype.start=null;jsts.index.chain.MonotoneChain.prototype.end=null;jsts.index.chain.MonotoneChain.prototype.env=null;jsts.index.chain.MonotoneChain.prototype.context=null;jsts.index.chain.MonotoneChain.prototype.id=null;jsts.index.chain.MonotoneChain.prototype.setId=function(id){this.id=id};jsts.index.chain.MonotoneChain.prototype.getId=function(){return this.id};jsts.index.chain.MonotoneChain.prototype.getContext=function(){return this.context};jsts.index.chain.MonotoneChain.prototype.getEnvelope=function(){if(this.env==null){var p0=this.pts[this.start];var p1=this.pts[this.end];this.env=new jsts.geom.Envelope(p0,p1)}return this.env};jsts.index.chain.MonotoneChain.prototype.getStartIndex=function(){return this.start};jsts.index.chain.MonotoneChain.prototype.getEndIndex=function(){return this.end};jsts.index.chain.MonotoneChain.prototype.getLineSegment=function(index,ls){ls.p0=this.pts[index];ls.p1=this.pts[index+1]};jsts.index.chain.MonotoneChain.prototype.getCoordinates=function(){var coord=[];var index=0;for(var i=this.start;i<=this.end;i++){coord[index++]=this.pts[i]}return coord};jsts.index.chain.MonotoneChain.prototype.select=function(searchEnv,mcs){this.computeSelect2(searchEnv,this.start,this.end,mcs)};jsts.index.chain.MonotoneChain.prototype.computeSelect2=function(searchEnv,start0,end0,mcs){var p0=this.pts[start0];var p1=this.pts[end0];mcs.tempEnv1.init(p0,p1);if(end0-start0===1){mcs.select(this,start0);return}if(!searchEnv.intersects(mcs.tempEnv1))return;var mid=parseInt((start0+end0)/2);if(start0<mid){this.computeSelect2(searchEnv,start0,mid,mcs)}if(mid<end0){this.computeSelect2(searchEnv,mid,end0,mcs)}};jsts.index.chain.MonotoneChain.prototype.computeOverlaps=function(mc,mco){if(arguments.length===6){return this.computeOverlaps2.apply(this,arguments)}this.computeOverlaps2(this.start,this.end,mc,mc.start,mc.end,mco)};jsts.index.chain.MonotoneChain.prototype.computeOverlaps2=function(start0,end0,mc,start1,end1,mco){var p00=this.pts[start0];var p01=this.pts[end0];var p10=mc.pts[start1];var p11=mc.pts[end1];if(end0-start0===1&&end1-start1===1){mco.overlap(this,start0,mc,start1);return}mco.tempEnv1.init(p00,p01);mco.tempEnv2.init(p10,p11);if(!mco.tempEnv1.intersects(mco.tempEnv2))return;var mid0=parseInt((start0+end0)/2);var mid1=parseInt((start1+end1)/2);if(start0<mid0){if(start1<mid1)this.computeOverlaps2(start0,mid0,mc,start1,mid1,mco);if(mid1<end1)this.computeOverlaps2(start0,mid0,mc,mid1,end1,mco)}if(mid0<end0){if(start1<mid1)this.computeOverlaps2(mid0,end0,mc,start1,mid1,mco);if(mid1<end1)this.computeOverlaps2(mid0,end0,mc,mid1,end1,mco)}};(function(){var Location=jsts.geom.Location;var Dimension=jsts.geom.Dimension;jsts.geom.IntersectionMatrix=function(elements){var other=elements;if(elements===undefined||elements===null){this.matrix=[[],[],[]];this.setAll(Dimension.FALSE)}else if(typeof elements==="string"){this.set(elements)}else if(other instanceof jsts.geom.IntersectionMatrix){this.matrix[Location.INTERIOR][Location.INTERIOR]=other.matrix[Location.INTERIOR][Location.INTERIOR];this.matrix[Location.INTERIOR][Location.BOUNDARY]=other.matrix[Location.INTERIOR][Location.BOUNDARY];this.matrix[Location.INTERIOR][Location.EXTERIOR]=other.matrix[Location.INTERIOR][Location.EXTERIOR];this.matrix[Location.BOUNDARY][Location.INTERIOR]=other.matrix[Location.BOUNDARY][Location.INTERIOR];this.matrix[Location.BOUNDARY][Location.BOUNDARY]=other.matrix[Location.BOUNDARY][Location.BOUNDARY];this.matrix[Location.BOUNDARY][Location.EXTERIOR]=other.matrix[Location.BOUNDARY][Location.EXTERIOR];this.matrix[Location.EXTERIOR][Location.INTERIOR]=other.matrix[Location.EXTERIOR][Location.INTERIOR];this.matrix[Location.EXTERIOR][Location.BOUNDARY]=other.matrix[Location.EXTERIOR][Location.BOUNDARY];this.matrix[Location.EXTERIOR][Location.EXTERIOR]=other.matrix[Location.EXTERIOR][Location.EXTERIOR]}};jsts.geom.IntersectionMatrix.prototype.matrix=null;jsts.geom.IntersectionMatrix.prototype.add=function(im){var i,j;for(i=0;i<3;i++){for(j=0;j<3;j++){this.setAtLeast(i,j,im.get(i,j))}}};jsts.geom.IntersectionMatrix.matches=function(actualDimensionValue,requiredDimensionSymbol){if(typeof actualDimensionValue==="string"){return jsts.geom.IntersectionMatrix.matches2.call(this,arguments)}if(requiredDimensionSymbol==="*"){return true}if(requiredDimensionSymbol==="T"&&(actualDimensionValue>=0||actualDimensionValue===Dimension.TRUE)){return true}if(requiredDimensionSymbol==="F"&&actualDimensionValue===Dimension.FALSE){return true}if(requiredDimensionSymbol==="0"&&actualDimensionValue===Dimension.P){return true}if(requiredDimensionSymbol==="1"&&actualDimensionValue===Dimension.L){return true}if(requiredDimensionSymbol==="2"&&actualDimensionValue===Dimension.A){return true}return false};jsts.geom.IntersectionMatrix.matches2=function(actualDimensionSymbols,requiredDimensionSymbols){var m=new jsts.geom.IntersectionMatrix(actualDimensionSymbols);return m.matches(requiredDimensionSymbols)};jsts.geom.IntersectionMatrix.prototype.set=function(row,column,dimensionValue){if(typeof row==="string"){this.set2(row);return}this.matrix[row][column]=dimensionValue};jsts.geom.IntersectionMatrix.prototype.set2=function(dimensionSymbols){for(var i=0;i<dimensionSymbols.length();i++){var row=i/3;var col=i%3;this.matrix[row][col]=Dimension.toDimensionValue(dimensionSymbols.charAt(i))}};jsts.geom.IntersectionMatrix.prototype.setAtLeast=function(row,column,minimumDimensionValue){if(arguments.length===1){this.setAtLeast2(arguments[0]);return}if(this.matrix[row][column]<minimumDimensionValue){this.matrix[row][column]=minimumDimensionValue}};jsts.geom.IntersectionMatrix.prototype.setAtLeastIfValid=function(row,column,minimumDimensionValue){if(row>=0&&column>=0){this.setAtLeast(row,column,minimumDimensionValue)}};jsts.geom.IntersectionMatrix.prototype.setAtLeast2=function(minimumDimensionSymbols){var i;for(i=0;i<minimumDimensionSymbols.length;i++){var row=parseInt(i/3);var col=parseInt(i%3);this.setAtLeast(row,col,jsts.geom.Dimension.toDimensionValue(minimumDimensionSymbols.charAt(i)))}};jsts.geom.IntersectionMatrix.prototype.setAll=function(dimensionValue){var ai,bi;for(ai=0;ai<3;ai++){for(bi=0;bi<3;bi++){this.matrix[ai][bi]=dimensionValue}}};jsts.geom.IntersectionMatrix.prototype.get=function(row,column){return this.matrix[row][column]};jsts.geom.IntersectionMatrix.prototype.isDisjoint=function(){return this.matrix[Location.INTERIOR][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.INTERIOR][Location.BOUNDARY]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.BOUNDARY]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isIntersects=function(){return!this.isDisjoint()};jsts.geom.IntersectionMatrix.prototype.isTouches=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA>dimensionOfGeometryB){return this.isTouches(dimensionOfGeometryB,dimensionOfGeometryA)}if(dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.L||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]===Dimension.FALSE&&(jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T"))}return false};jsts.geom.IntersectionMatrix.prototype.isCrosses=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.L||dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB==Dimension.A||dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.A){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")}if(dimensionOfGeometryA==Dimension.L&&dimensionOfGeometryB==Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB==Dimension.L){return jsts.geom.IntersectionMatrix.matches(matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]===0}return false};jsts.geom.IntersectionMatrix.prototype.isWithin=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.INTERIOR][Location.EXTERIOR]==Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isContains=function(){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isCovers=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T");return hasPointInCommon&&this.matrix[Location.EXTERIOR][Location.INTERIOR]==Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]==Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isCoveredBy=function(){var hasPointInCommon=jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.BOUNDARY],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.INTERIOR],"T")||jsts.geom.IntersectionMatrix.matches(this.matrix[Location.BOUNDARY][Location.BOUNDARY],"T");return hasPointInCommon&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isEquals=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA!==dimensionOfGeometryB){return false}return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&this.matrix[Location.EXTERIOR][Location.INTERIOR]===Dimension.FALSE&&this.matrix[Location.INTERIOR][Location.EXTERIOR]===Dimension.FALSE&&this.matrix[Location.EXTERIOR][Location.BOUNDARY]===Dimension.FALSE&&this.matrix[Location.BOUNDARY][Location.EXTERIOR]===Dimension.FALSE};jsts.geom.IntersectionMatrix.prototype.isOverlaps=function(dimensionOfGeometryA,dimensionOfGeometryB){if(dimensionOfGeometryA==Dimension.P&&dimensionOfGeometryB===Dimension.P||dimensionOfGeometryA==Dimension.A&&dimensionOfGeometryB===Dimension.A){return jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.INTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}if(dimensionOfGeometryA===Dimension.L&&dimensionOfGeometryB===Dimension.L){return this.matrix[Location.INTERIOR][Location.INTERIOR]==1&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.INTERIOR][Location.EXTERIOR],"T")&&jsts.geom.IntersectionMatrix.matches(this.matrix[Location.EXTERIOR][Location.INTERIOR],"T")}return false};jsts.geom.IntersectionMatrix.prototype.matches=function(requiredDimensionSymbols){if(requiredDimensionSymbols.length!=9){throw new jsts.error.IllegalArgumentException("Should be length 9: "+requiredDimensionSymbols)}for(var ai=0;ai<3;ai++){for(var bi=0;bi<3;bi++){if(!jsts.geom.IntersectionMatrix.matches(this.matrix[ai][bi],requiredDimensionSymbols.charAt(3*ai+bi))){return false}}}return true};jsts.geom.IntersectionMatrix.prototype.transpose=function(){var temp=matrix[1][0];this.matrix[1][0]=this.matrix[0][1];this.matrix[0][1]=temp;temp=this.matrix[2][0];this.matrix[2][0]=this.matrix[0][2];this.matrix[0][2]=temp;temp=this.matrix[2][1];this.matrix[2][1]=this.matrix[1][2];this.matrix[1][2]=temp;return this};jsts.geom.IntersectionMatrix.prototype.toString=function(){var ai,bi,buf="";for(ai=0;ai<3;ai++){for(bi=0;bi<3;bi++){buf+=Dimension.toDimensionSymbol(this.matrix[ai][bi])}}return buf}})();jsts.triangulate.quadedge.LastFoundQuadEdgeLocator=function(subdiv){this.subdiv=subdiv;this.lastEdge=null;this.init()};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.init=function(){this.lastEdge=this.findEdge()};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.findEdge=function(){var edges=this.subdiv.getEdges();return edges[0]};jsts.triangulate.quadedge.LastFoundQuadEdgeLocator.prototype.locate=function(v){if(!this.lastEdge.isLive()){this.init()}var e=this.subdiv.locateFromEdge(v,this.lastEdge);this.lastEdge=e;return e};jsts.noding.SegmentNodeList=function(edge){this.nodeMap=new javascript.util.TreeMap;this.edge=edge};jsts.noding.SegmentNodeList.prototype.nodeMap=null;jsts.noding.SegmentNodeList.prototype.iterator=function(){return this.nodeMap.values().iterator()};jsts.noding.SegmentNodeList.prototype.edge=null;jsts.noding.SegmentNodeList.prototype.getEdge=function(){return this.edge};jsts.noding.SegmentNodeList.prototype.add=function(intPt,segmentIndex){var eiNew=new jsts.noding.SegmentNode(this.edge,intPt,segmentIndex,this.edge.getSegmentOctant(segmentIndex));var ei=this.nodeMap.get(eiNew);if(ei!==null){jsts.util.Assert.isTrue(ei.coord.equals2D(intPt),"Found equal nodes with different coordinates");return ei}this.nodeMap.put(eiNew,eiNew);return eiNew};jsts.noding.SegmentNodeList.prototype.addEndpoints=function(){var maxSegIndex=this.edge.size()-1;this.add(this.edge.getCoordinate(0),0);this.add(this.edge.getCoordinate(maxSegIndex),maxSegIndex)};jsts.noding.SegmentNodeList.prototype.addCollapsedNodes=function(){var collapsedVertexIndexes=[];this.findCollapsesFromInsertedNodes(collapsedVertexIndexes);this.findCollapsesFromExistingVertices(collapsedVertexIndexes);for(var i=0;i<collapsedVertexIndexes.length;i++){var vertexIndex=collapsedVertexIndexes[i];this.add(this.edge.getCoordinate(vertexIndex),vertexIndex)}};jsts.noding.SegmentNodeList.prototype.findCollapsesFromExistingVertices=function(collapsedVertexIndexes){for(var i=0;i<this.edge.size()-2;i++){var p0=this.edge.getCoordinate(i);var p1=this.edge.getCoordinate(i+1);var p2=this.edge.getCoordinate(i+2);if(p0.equals2D(p2)){collapsedVertexIndexes.push(i+1)}}};jsts.noding.SegmentNodeList.prototype.findCollapsesFromInsertedNodes=function(collapsedVertexIndexes){var collapsedVertexIndex=[null];var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var isCollapsed=this.findCollapseIndex(eiPrev,ei,collapsedVertexIndex);if(isCollapsed)collapsedVertexIndexes.push(collapsedVertexIndex[0]);eiPrev=ei}};jsts.noding.SegmentNodeList.prototype.findCollapseIndex=function(ei0,ei1,collapsedVertexIndex){if(!ei0.coord.equals2D(ei1.coord))return false;var numVerticesBetween=ei1.segmentIndex-ei0.segmentIndex;if(!ei1.isInterior()){numVerticesBetween--}if(numVerticesBetween===1){collapsedVertexIndex[0]=ei0.segmentIndex+1;return true}return false};jsts.noding.SegmentNodeList.prototype.addSplitEdges=function(edgeList){this.addEndpoints();this.addCollapsedNodes();var it=this.iterator();var eiPrev=it.next();while(it.hasNext()){var ei=it.next();var newEdge=this.createSplitEdge(eiPrev,ei);edgeList.add(newEdge);eiPrev=ei}};jsts.noding.SegmentNodeList.prototype.checkSplitEdgesCorrectness=function(splitEdges){var edgePts=edge.getCoordinates();var split0=splitEdges[0];var pt0=split0.getCoordinate(0);if(!pt0.equals2D(edgePts[0]))throw new Error("bad split edge start point at "+pt0);var splitn=splitEdges[splitEdges.length-1];var splitnPts=splitn.getCoordinates();var ptn=splitnPts[splitnPts.length-1];if(!ptn.equals2D(edgePts[edgePts.length-1]))throw new Error("bad split edge end point at "+ptn)};jsts.noding.SegmentNodeList.prototype.createSplitEdge=function(ei0,ei1){var npts=ei1.segmentIndex-ei0.segmentIndex+2;var lastSegStartPt=this.edge.getCoordinate(ei1.segmentIndex);var useIntPt1=ei1.isInterior()||!ei1.coord.equals2D(lastSegStartPt);if(!useIntPt1){npts--}var pts=[];var ipt=0;pts[ipt++]=new jsts.geom.Coordinate(ei0.coord);for(var i=ei0.segmentIndex+1;i<=ei1.segmentIndex;i++){pts[ipt++]=this.edge.getCoordinate(i)}if(useIntPt1)pts[ipt]=ei1.coord;return new jsts.noding.NodedSegmentString(pts,this.edge.getData())};jsts.io.WKTWriter=function(){this.parser=new jsts.io.WKTParser(this.geometryFactory)};jsts.io.WKTWriter.prototype.write=function(geometry){var wkt=this.parser.write(geometry);return wkt};jsts.io.WKTWriter.toLineString=function(p0,p1){if(arguments.length!==2){throw new jsts.error.NotImplementedError}return"LINESTRING ( "+p0.x+" "+p0.y+", "+p1.x+" "+p1.y+" )"};jsts.io.WKTReader=function(geometryFactory){this.geometryFactory=geometryFactory||new jsts.geom.GeometryFactory;this.precisionModel=this.geometryFactory.getPrecisionModel();this.parser=new jsts.io.WKTParser(this.geometryFactory)};jsts.io.WKTReader.prototype.read=function(wkt){var geometry=this.parser.read(wkt);if(this.precisionModel.getType()===jsts.geom.PrecisionModel.FIXED){this.reducePrecision(geometry)}return geometry};jsts.io.WKTReader.prototype.reducePrecision=function(geometry){var i,len;if(geometry.coordinate){this.precisionModel.makePrecise(geometry.coordinate)}else if(geometry.points){for(i=0,len=geometry.points.length;i<len;i++){this.precisionModel.makePrecise(geometry.points[i])}}else if(geometry.geometries){for(i=0,len=geometry.geometries.length;i<len;i++){this.reducePrecision(geometry.geometries[i])}}};jsts.triangulate.quadedge.QuadEdgeSubdivision=function(env,tolerance){this.tolerance=tolerance;this.edgeCoincidenceTolerance=tolerance/jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR;this.visitedKey=0;this.quadEdges=[];this.startingEdge;this.tolerance;this.edgeCoincidenceTolerance;this.frameEnv;this.locator=null;this.seg=new jsts.geom.LineSegment;this.triEdges=new Array(3);this.frameVertex=new Array(3);this.createFrame(env);this.startingEdge=this.initSubdiv();this.locator=new jsts.triangulate.quadedge.LastFoundQuadEdgeLocator(this)};jsts.triangulate.quadedge.QuadEdgeSubdivision.EDGE_COINCIDENCE_TOL_FACTOR=1e3;jsts.triangulate.quadedge.QuadEdgeSubdivision.getTriangleEdges=function(startQE,triEdge){triEdge[0]=startQE;triEdge[1]=triEdge[0].lNext();triEdge[2]=triEdge[1].lNext();if(triEdge[2].lNext()!=triEdge[0]){throw new jsts.IllegalArgumentError("Edges do not form a triangle")}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.createFrame=function(env){var deltaX,deltaY,offset;deltaX=env.getWidth();deltaY=env.getHeight();offset=0;if(deltaX>deltaY){offset=deltaX*10}else{offset=deltaY*10}this.frameVertex[0]=new jsts.triangulate.quadedge.Vertex((env.getMaxX()+env.getMinX())/2,env.getMaxY()+offset);this.frameVertex[1]=new jsts.triangulate.quadedge.Vertex(env.getMinX()-offset,env.getMinY()-offset);this.frameVertex[2]=new jsts.triangulate.quadedge.Vertex(env.getMaxX()+offset,env.getMinY()-offset);this.frameEnv=new jsts.geom.Envelope(this.frameVertex[0].getCoordinate(),this.frameVertex[1].getCoordinate());this.frameEnv.expandToInclude(this.frameVertex[2].getCoordinate())};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.initSubdiv=function(){var ea,eb,ec;ea=this.makeEdge(this.frameVertex[0],this.frameVertex[1]);eb=this.makeEdge(this.frameVertex[1],this.frameVertex[2]);jsts.triangulate.quadedge.QuadEdge.splice(ea.sym(),eb);ec=this.makeEdge(this.frameVertex[2],this.frameVertex[0]);jsts.triangulate.quadedge.QuadEdge.splice(eb.sym(),ec);jsts.triangulate.quadedge.QuadEdge.splice(ec.sym(),ea);return ea};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTolerance=function(){return this.tolerance};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEnvelope=function(){return new jsts.geom.Envelope(this.frameEnv)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdges=function(){if(arguments.length>0){return this.getEdgesByFactory(arguments[0])}else{return this.quadEdges}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.setLocator=function(locator){this.locator=locator};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.makeEdge=function(o,d){var q=jsts.triangulate.quadedge.QuadEdge.makeEdge(o,d);this.quadEdges.push(q);return q};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.connect=function(a,b){var q=jsts.triangulate.quadedge.QuadEdge.connect(a,b);this.quadEdges.push(q);return q};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.delete_jsts=function(e){jsts.triangulate.quadedge.QuadEdge.splice(e,e.oPrev());jsts.triangulate.quadedge.QuadEdge.splice(e.sym(),e.sym().oPrev());var eSym,eRot,eRotSym;e.eSym=e.sym();eRot=e.rot;eRotSym=e.rot.sym();var idx=this.quadEdges.indexOf(e);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eSym);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eRot);if(idx!==-1){this.quadEdges.splice(idx,1)}idx=this.quadEdges.indexOf(eRotSym);if(idx!==-1){this.quadEdges.splice(idx,1)}e.delete_jsts();eSym.delete_jsts();eRot.delete_jsts();eRotSym.delete_jsts()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateFromEdge=function(v,startEdge){var iter=0,maxIter=this.quadEdges.length,e;e=startEdge;while(true){iter++;if(iter>maxIter){throw new jsts.error.LocateFailureError(e.toLineSegment())}if(v.equals(e.orig())||v.equals(e.dest())){break}else if(v.rightOf(e)){e=e.sym()}else if(!v.rightOf(e.oNext())){e=e.oNext()}else if(!v.rightOf(e.dPrev())){e=e.dPrev()}else{break}}return e};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locate=function(){if(arguments.length===1){if(arguments[0]instanceof jsts.triangulate.quadedge.Vertex){return this.locateByVertex(arguments[0])}else{return this.locateByCoordinate(arguments[0])}}else{return this.locateByCoordinates(arguments[0],arguments[1])}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByVertex=function(v){return this.locator.locate(v)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinate=function(p){return this.locator.locate(new jsts.triangulate.quadedge.Vertex(p))};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.locateByCoordinates=function(p0,p1){var e,base,locEdge;var e=this.locator.locate(new jsts.triangulate.quadedge.Vertex(p0));if(e===null){return null}base=e;if(e.dest().getCoordinate().equals2D(p0)){base=e.sym()}locEdge=base;do{if(locEdge.dest().getCoordinate().equals2D(p1)){return locEdge}locEdge=locEdge.oNext()}while(locEdge!=base);return null};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.insertSite=function(v){var e,base,startEdge;e=this.locate(v);if(v.equals(e.orig(),this.tolerance)||v.equals(e.dest(),this.tolerance)){return e}base=this.makeEdge(e.orig(),v);jsts.triangulate.quadedge.QuadEdge.splice(base,e);startEdge=base;do{base=this.connect(e,base.sym());e=base.oPrev()}while(e.lNext()!=startEdge);return startEdge};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameEdge=function(e){if(this.isFrameVertex(e.orig())||this.isFrameVertex(e.dest())){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameBorderEdge=function(e){var leftTri,rightTri,vLeftTriOther,vRightTriOther;leftTri=new Array(3);this.getTriangleEdges(e,leftTri);rightTri=new Array(3);this.getTriangleEdges(e.sym(),rightTri);vLeftTriOther=e.lNext().dest();if(this.isFrameVertex(vLeftTriOther)){return true}vRightTriOther=e.sym().lNext().dest();if(this.isFrameVertex(vRightTriOther)){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isFrameVertex=function(v){if(v.equals(this.frameVertex[0])){return true}if(v.equals(this.frameVertex[1])){return true}if(v.equals(this.frameVertex[2])){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isOnEdge=function(e,p){this.seg.setCoordinates(e.orig().getCoordinate(),e.dest().getCoordinate());var dist=this.seg.distance(p);return dist<this.edgeCoincidenceTolerance};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.isVertexOfEdge=function(e,v){if(v.equals(e.orig(),this.tolerance)||v.equals(e.dest(),this.tolerance)){return true}return false};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVertices=function(includeFrame){var vertices=[],i,il,qe,v,vd;i=0,il=this.quadEdges.length;for(i;i<il;i++){qe=this.quadEdges[i];v=qe.orig();if(includeFrame||!this.isFrameVertex(v)){vertices.push(v)}vd=qe.dest();if(includeFrame||!this.isFrameVertex(vd)){vertices.push(vd)}}return vertices};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVertexUniqueEdges=function(includeFrame){var edges,visitedVertices,i,il,qe,v,qd,vd;edges=[];visitedVertices=[];i=0,il=this.quadEdges.length;for(i;i<il;i++){qe=this.quadEdges[i];v=qe.orig();if(visitedVertices.indexOf(v)===-1){visitedVertices.push(v);if(includeFrame||!this.isFrameVertex(v)){edges.push(qe)}}qd=qe.sym();vd=qd.orig();if(visitedVertices.indexOf(vd)===-1){visitedVertices.push(vd);if(includeFrame||!this.isFrameVertex(vd)){edges.push(qd)}}}return edges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getPrimaryEdges=function(includeFrame){this.visitedKey++;var edges,edgeStack,visitedEdges,edge,priQE;edges=[];edgeStack=[];edgeStack.push(this.startingEdge);visitedEdges=[];while(edgeStack.length>0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){priQE=edge.getPrimary();if(includeFrame||!this.isFrameEdge(priQE)){edges.push(priQE)}edgeStack.push(edge.oNext());edgeStack.push(edge.sym().oNext());visitedEdges.push(edge);visitedEdges.push(edge.sym())}}return edges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.visitTriangles=function(triVisitor,includeFrame){this.visitedKey++;var edgeStack,visitedEdges,edge,triEdges;edgeStack=[];edgeStack.push(this.startingEdge);visitedEdges=[];while(edgeStack.length>0){edge=edgeStack.pop();if(visitedEdges.indexOf(edge)===-1){triEdges=this.fetchTriangleToVisit(edge,edgeStack,includeFrame,visitedEdges);if(triEdges!==null)triVisitor.visit(triEdges)}}};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.fetchTriangleToVisit=function(edge,edgeStack,includeFrame,visitedEdges){var curr,edgeCount,isFrame,sym;curr=edge;edgeCount=0;isFrame=false;do{this.triEdges[edgeCount]=curr;if(this.isFrameEdge(curr)){isFrame=true}sym=curr.sym();if(visitedEdges.indexOf(sym)===-1){edgeStack.push(sym)}visitedEdges.push(curr);edgeCount++;curr=curr.lNext()}while(curr!==edge);if(isFrame&&!includeFrame){return null}return this.triEdges};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleEdges=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleEdgesListVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangleEdges()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleVertices=function(includeFrame){var visitor=new TriangleVertexListVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangleVertices()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangleCoordinates=function(includeFrame){var visitor=new jsts.triangulate.quadedge.TriangleCoordinatesVisitor;this.visitTriangles(visitor,includeFrame);return visitor.getTriangles()};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getEdgesByFactory=function(geomFact){var quadEdges,edges,i,il,qe,coords;quadEdges=this.getPrimaryEdges(false);edges=[];i=0;il=quadEdges.length;for(i;i<il;i++){qe=quadEdges[i];coords=[];coords[0]=qe.orig().getCoordinate();coords[1]=qe.dest().getCoordinate();edges[i]=geomFact.createLineString(coords)}return geomFact.createMultiLineString(edges)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getTriangles=function(geomFact){var triPtsList,tris,triPt,i,il;triPtsList=this.getTriangleCoordinates(false);tris=new Array(triPtsList.length);i=0,il=triPtsList.length;for(i;i<il;i++){triPt=triPtsList[i];tris[i]=geomFact.createPolygon(geomFact.createLinearRing(triPt,null))}return geomFact.createGeometryCollection(tris)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiDiagram=function(geomFact){var vorCells=this.getVoronoiCellPolygons(geomFact);return geomFact.createGeometryCollection(vorCells)};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiCellPolygons=function(geomFact){this.visitTriangles(new jsts.triangulate.quadedge.TriangleCircumcentreVisitor,true);var cells,edges,i,il,qe;cells=[];edges=this.getVertexUniqueEdges(false);i=0,il=edges.length;for(i;i<il;i++){qe=edges[i];cells.push(this.getVoronoiCellPolygon(qe,geomFact))}return cells};jsts.triangulate.quadedge.QuadEdgeSubdivision.prototype.getVoronoiCellPolygon=function(qe,geomFact){var cellPts,startQe,cc,coordList,cellPoly,v;cellPts=[];startQE=qe;do{cc=qe.rot.orig().getCoordinate();cellPts.push(cc);qe=qe.oPrev()}while(qe!==startQE);coordList=new jsts.geom.CoordinateList([],false);coordList.add(cellPts,false);coordList.closeRing();if(coordList.size()<4){coordList.add(coordList.get(coordList.size()-1),true)}cellPoly=geomFact.createPolygon(geomFact.createLinearRing(coordList.toArray()),null);v=startQE.orig();return cellPoly};jsts.triangulate.quadedge.TriangleCircumcentreVisitor=function(){};jsts.triangulate.quadedge.TriangleCircumcentreVisitor.prototype.visit=function(triEdges){var a,b,c,cc,ccVertex,i;a=triEdges[0].orig().getCoordinate();b=triEdges[1].orig().getCoordinate();c=triEdges[2].orig().getCoordinate();cc=jsts.geom.Triangle.circumcentre(a,b,c);ccVertex=new jsts.triangulate.quadedge.Vertex(cc);i=0;for(i;i<3;i++){triEdges[i].rot.setOrig(ccVertex)}};jsts.triangulate.quadedge.TriangleEdgesListVisitor=function(){this.triList=[]};jsts.triangulate.quadedge.TriangleEdgesListVisitor.prototype.visit=function(triEdges){var clone=triEdges.concat();this.triList.push(clone)};jsts.triangulate.quadedge.TriangleEdgesListVisitor.prototype.getTriangleEdges=function(){return this.triList};jsts.triangulate.quadedge.TriangleVertexListVisitor=function(){this.triList=[]};jsts.triangulate.quadedge.TriangleVertexListVisitor.prototype.visit=function(triEdges){var vertices=[];vertices.push(trieEdges[0].orig());vertices.push(trieEdges[1].orig());vertices.push(trieEdges[2].orig());this.triList.push(vertices)};jsts.triangulate.quadedge.TriangleVertexListVisitor.prototype.getTriangleVertices=function(){return this.triList};jsts.triangulate.quadedge.TriangleCoordinatesVisitor=function(){this.coordList=new jsts.geom.CoordinateList([],false);this.triCoords=[]};jsts.triangulate.quadedge.TriangleCoordinatesVisitor.prototype.visit=function(triEdges){
this.coordList=new jsts.geom.CoordinateList([],false);var i=0,v,pts;for(i;i<3;i++){v=triEdges[i].orig();this.coordList.add(v.getCoordinate())}if(this.coordList.size()>0){this.coordList.closeRing();pts=this.coordList.toArray();if(pts.length!==4){return}this.triCoords.push(pts)}};jsts.triangulate.quadedge.TriangleCoordinatesVisitor.prototype.getTriangles=function(){return this.triCoords};jsts.operation.relate.EdgeEndBundle=function(){this.edgeEnds=[];var e=arguments[0]instanceof jsts.geomgraph.EdgeEnd?arguments[0]:arguments[1];var edge=e.getEdge();var coord=e.getCoordinate();var dirCoord=e.getDirectedCoordinate();var label=new jsts.geomgraph.Label(e.getLabel());jsts.geomgraph.EdgeEnd.call(this,edge,coord,dirCoord,label);this.insert(e)};jsts.operation.relate.EdgeEndBundle.prototype=new jsts.geomgraph.EdgeEnd;jsts.operation.relate.EdgeEndBundle.prototype.edgeEnds=null;jsts.operation.relate.EdgeEndBundle.prototype.getLabel=function(){return this.label};jsts.operation.relate.EdgeEndBundle.prototype.getEdgeEnds=function(){return this.edgeEnds};jsts.operation.relate.EdgeEndBundle.prototype.insert=function(e){this.edgeEnds.push(e)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabel=function(boundaryNodeRule){var isArea=false;for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];if(e.getLabel().isArea())isArea=true}if(isArea)this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE,jsts.geom.Location.NONE,jsts.geom.Location.NONE);else this.label=new jsts.geomgraph.Label(jsts.geom.Location.NONE);for(var i=0;i<2;i++){this.computeLabelOn(i,boundaryNodeRule);if(isArea)this.computeLabelSides(i)}};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelOn=function(geomIndex,boundaryNodeRule){var boundaryCount=0;var foundInterior=false;for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];var loc=e.getLabel().getLocation(geomIndex);if(loc==jsts.geom.Location.BOUNDARY)boundaryCount++;if(loc==jsts.geom.Location.INTERIOR)foundInterior=true}var loc=jsts.geom.Location.NONE;if(foundInterior)loc=jsts.geom.Location.INTERIOR;if(boundaryCount>0){loc=jsts.geomgraph.GeometryGraph.determineBoundary(boundaryNodeRule,boundaryCount)}this.label.setLocation(geomIndex,loc)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSides=function(geomIndex){this.computeLabelSide(geomIndex,jsts.geomgraph.Position.LEFT);this.computeLabelSide(geomIndex,jsts.geomgraph.Position.RIGHT)};jsts.operation.relate.EdgeEndBundle.prototype.computeLabelSide=function(geomIndex,side){for(var i=0;i<this.edgeEnds.length;i++){var e=this.edgeEnds[i];if(e.getLabel().isArea()){var loc=e.getLabel().getLocation(geomIndex,side);if(loc===jsts.geom.Location.INTERIOR){this.label.setLocation(geomIndex,side,jsts.geom.Location.INTERIOR);return}else if(loc===jsts.geom.Location.EXTERIOR)this.label.setLocation(geomIndex,side,jsts.geom.Location.EXTERIOR)}}};jsts.operation.relate.EdgeEndBundle.prototype.updateIM=function(im){jsts.geomgraph.Edge.updateIM(this.label,im)};jsts.index.kdtree.KdTree=function(tolerance){var tol=0;if(tolerance!==undefined){tol=tolerance}this.root=null;this.last=null;this.numberOfNodes=0;this.tolerance=tol};jsts.index.kdtree.KdTree.prototype.insert=function(){if(arguments.length===1){return this.insertCoordinate.apply(this,arguments[0])}else{return this.insertWithData.apply(this,arguments[0],arguments[1])}};jsts.index.kdtree.KdTree.prototype.insertCoordinate=function(p){return this.insertWithData(p,null)};jsts.index.kdtree.KdTree.prototype.insertWithData=function(p,data){if(this.root===null){this.root=new jsts.index.kdtree.KdNode(p,data);return this.root}var currentNode=this.root,leafNode=this.root,isOddLevel=true,isLessThan=true;while(currentNode!==last){if(isOddLevel){isLessThan=p.x<currentNode.getX()}else{isLessThan=p.y<currentNode.getY()}leafNode=currentNode;if(isLessThan){currentNode=currentNode.getLeft()}else{currentNode=currentNode.getRight()}if(currentNode!==null){var isInTolerance=p.distance(currentNode.getCoordinate())<=this.tolerance;if(isInTolerance){currentNode.increment();return currentNode}}isOddLevel=!isOddLevel}this.numberOfNodes=numberOfNodes+1;var node=new jsts.index.kdtree.KdNode(p,data);node.setLeft(this.last);node.setRight(this.last);if(isLessThan){leafNode.setLeft(node)}else{leafNode.setRight(node)}return node};jsts.index.kdtree.KdTree.prototype.queryNode=function(currentNode,bottomNode,queryEnv,odd,result){if(currentNode===bottomNode){return}var min,max,discriminant;if(odd){min=queryEnv.getMinX();max=queryEnv.getMaxX();discriminant=currentNode.getX()}else{min=queryEnv.getMinY();max=queryEnv.getMaxY();discriminant=currentNode.getY()}var searchLeft=min<discriminant;var searchRight=discriminant<=max;if(searchLeft){this.queryNode(currentNode.getLeft(),bottomNode,queryEnv,!odd,result)}if(queryEnv.contains(currentNode.getCoordinate())){result.add(currentNode)}if(searchRight){this.queryNode(currentNode.getRight(),bottomNode,queryEnv,!odd,result)}};jsts.index.kdtree.KdTree.prototype.query=function(){if(arguments.length===1){return this.queryByEnvelope.apply(this,arguments[0])}else{return this.queryWithArray.apply(this,arguments[0],arguments[1])}};jsts.index.kdtree.KdTree.prototype.queryByEnvelope=function(queryEnv){var result=[];this.queryNode(this.root,this.last,queryEnv,true,result);return result};jsts.index.kdtree.KdTree.prototype.queryWithArray=function(queryEnv,result){this.queryNode(this.root,this.last,queryEnv,true,result)};jsts.geom.Triangle=function(p0,p1,p2){this.p0=p0;this.p1=p1;this.p2=p2};jsts.geom.Triangle.isAcute=function(a,b,c){if(!jsts.algorithm.Angle.isAcute(a,b,c)){return false}if(!jsts.algorithm.Angle.isAcute(b,c,a)){return false}if(!jsts.algorithm.Angle.isAcute(c,a,b)){return false}return true};jsts.geom.Triangle.perpendicularBisector=function(a,b){var dx,dy,l1,l2;dx=b.x-a.x;dy=b.y-a.y;l1=new jsts.algorithm.HCoordinate(a.x+dx/2,a.y+dy/2,1);l2=new jsts.algorithm.HCoordinate(a.x-dy+dx/2,a.y+dx+dy/2,1);return new jsts.algorithm.HCoordinate(l1,l2)};jsts.geom.Triangle.circumcentre=function(a,b,c){var cx,cy,ax,ay,bx,by,denom,numx,numy,ccx,ccy;cx=c.x;cy=c.y;ax=a.x-cx;ay=a.y-cy;bx=b.x-cx;by=b.y-cy;denom=2*jsts.geom.Triangle.det(ax,ay,bx,by);numx=jsts.geom.Triangle.det(ay,ax*ax+ay*ay,by,bx*bx+by*by);numy=jsts.geom.Triangle.det(ax,ax*ax+ay*ay,bx,bx*bx+by*by);ccx=cx-numx/denom;ccy=cy+numy/denom;return new jsts.geom.Coordinate(ccx,ccy)};jsts.geom.Triangle.det=function(m00,m01,m10,m11){return m00*m11-m01*m10};jsts.geom.Triangle.inCentre=function(a,b,c){var len0,len1,len2,circum,inCentreX,inCentreY;len0=b.distance(c);len1=a.distance(c);len2=a.distance(b);circum=len0+len1+len2;inCentreX=(len0*a.x+len1*b.x+len2*c.x)/circum;inCentreY=(len0*a.y+len1*b.y+len2*c.y)/circum;return new jsts.geom.Coordinate(inCentreX,inCentreY)};jsts.geom.Triangle.centroid=function(a,b,c){var x,y;x=(a.x+b.x+c.x)/3;y=(a.y+b.y+c.y)/3;return new jsts.geom.Coordinate(x,y)};jsts.geom.Triangle.longestSideLength=function(a,b,c){var lenAB,lenBC,lenCA,maxLen;lenAB=a.distance(b);lenBC=b.distance(c);lenCA=c.distance(a);maxLen=lenAB;if(lenBC>maxLen){maxLen=lenBC}if(lenCA>maxLen){maxLen=lenCA}return maxLen};jsts.geom.Triangle.angleBisector=function(a,b,c){var len0,len2,frac,dx,dy,splitPt;len0=b.distance(a);len2=b.distance(c);frac=len0/(len0+len2);dx=c.x-a.x;dy=c.y-a.y;splitPt=new jsts.geom.Coordinate(a.x+frac*dx,a.y+frac*dy);return splitPt};jsts.geom.Triangle.area=function(a,b,c){return Math.abs(((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2)};jsts.geom.Triangle.signedArea=function(a,b,c){return((c.x-a.x)*(b.y-a.y)-(b.x-a.x)*(c.y-a.y))/2};jsts.geom.Triangle.prototype.inCentre=function(){return jsts.geom.Triangle.inCentre(this.p0,this.p1,this.p2)};jsts.noding.OrientedCoordinateArray=function(pts){this.pts=pts;this._orientation=jsts.noding.OrientedCoordinateArray.orientation(pts)};jsts.noding.OrientedCoordinateArray.prototype.pts=null;jsts.noding.OrientedCoordinateArray.prototype._orientation=undefined;jsts.noding.OrientedCoordinateArray.orientation=function(pts){return jsts.geom.CoordinateArrays.increasingDirection(pts)===1};jsts.noding.OrientedCoordinateArray.prototype.compareTo=function(o1){var oca=o1;var comp=jsts.noding.OrientedCoordinateArray.compareOriented(this.pts,this._orientation,oca.pts,oca._orientation);return comp};jsts.noding.OrientedCoordinateArray.compareOriented=function(pts1,orientation1,pts2,orientation2){var dir1=orientation1?1:-1;var dir2=orientation2?1:-1;var limit1=orientation1?pts1.length:-1;var limit2=orientation2?pts2.length:-1;var i1=orientation1?0:pts1.length-1;var i2=orientation2?0:pts2.length-1;var comp=0;while(true){var compPt=pts1[i1].compareTo(pts2[i2]);if(compPt!==0)return compPt;i1+=dir1;i2+=dir2;var done1=i1===limit1;var done2=i2===limit2;if(done1&&!done2)return-1;if(!done1&&done2)return 1;if(done1&&done2)return 0}};jsts.algorithm.CentralEndpointIntersector=function(p00,p01,p10,p11){this.pts=[p00,p01,p10,p11];this.compute()};jsts.algorithm.CentralEndpointIntersector.getIntersection=function(p00,p01,p10,p11){var intor=new jsts.algorithm.CentralEndpointIntersector(p00,p01,p10,p11);return intor.getIntersection()};jsts.algorithm.CentralEndpointIntersector.prototype.pts=null;jsts.algorithm.CentralEndpointIntersector.prototype.intPt=null;jsts.algorithm.CentralEndpointIntersector.prototype.compute=function(){var centroid=jsts.algorithm.CentralEndpointIntersector.average(this.pts);this.intPt=this.findNearestPoint(centroid,this.pts)};jsts.algorithm.CentralEndpointIntersector.prototype.getIntersection=function(){return this.intPt};jsts.algorithm.CentralEndpointIntersector.average=function(pts){var avg=new jsts.geom.Coordinate;var i,n=pts.length;for(i=0;i<n;i++){avg.x+=pts[i].x;avg.y+=pts[i].y}if(n>0){avg.x/=n;avg.y/=n}return avg};jsts.algorithm.CentralEndpointIntersector.prototype.findNearestPoint=function(p,pts){var minDist=Number.MAX_VALUE;var i,result=null,dist;for(i=0;i<pts.length;i++){dist=p.distance(pts[i]);if(dist<minDist){minDist=dist;result=pts[i]}}return result};jsts.operation.buffer.BufferOp=function(g,bufParams){this.argGeom=g;this.bufParams=bufParams?bufParams:new jsts.operation.buffer.BufferParameters};jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS=12;jsts.operation.buffer.BufferOp.precisionScaleFactor=function(g,distance,maxPrecisionDigits){var env=g.getEnvelopeInternal();var envSize=Math.max(env.getHeight(),env.getWidth());var expandByDistance=distance>0?distance:0;var bufEnvSize=envSize+2*expandByDistance;var bufEnvLog10=Math.log(bufEnvSize)/Math.log(10)+1;var minUnitLog10=bufEnvLog10-maxPrecisionDigits;var scaleFactor=Math.pow(10,-minUnitLog10);return scaleFactor};jsts.operation.buffer.BufferOp.bufferOp=function(g,distance){if(arguments.length>2){return jsts.operation.buffer.BufferOp.bufferOp2.apply(this,arguments)}var gBuf=new jsts.operation.buffer.BufferOp(g);var geomBuf=gBuf.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp2=function(g,distance,params){if(arguments.length>3){return jsts.operation.buffer.BufferOp.bufferOp3.apply(this,arguments)}var bufOp=new jsts.operation.buffer.BufferOp(g,params);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp3=function(g,distance,quadrantSegments){if(arguments.length>4){return jsts.operation.buffer.BufferOp.bufferOp4.apply(this,arguments)}var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.bufferOp4=function(g,distance,quadrantSegments,endCapStyle){var bufOp=new jsts.operation.buffer.BufferOp(g);bufOp.setQuadrantSegments(quadrantSegments);bufOp.setEndCapStyle(endCapStyle);var geomBuf=bufOp.getResultGeometry(distance);return geomBuf};jsts.operation.buffer.BufferOp.prototype.argGeom=null;jsts.operation.buffer.BufferOp.prototype.distance=null;jsts.operation.buffer.BufferOp.prototype.bufParams=null;jsts.operation.buffer.BufferOp.prototype.resultGeometry=null;jsts.operation.buffer.BufferOp.prototype.setEndCapStyle=function(endCapStyle){this.bufParams.setEndCapStyle(endCapStyle)};jsts.operation.buffer.BufferOp.prototype.setQuadrantSegments=function(quadrantSegments){this.bufParams.setQuadrantSegments(quadrantSegments)};jsts.operation.buffer.BufferOp.prototype.getResultGeometry=function(dist){this.distance=dist;this.computeGeometry();return this.resultGeometry};jsts.operation.buffer.BufferOp.prototype.computeGeometry=function(){this.bufferOriginalPrecision();if(this.resultGeometry!==null){return}var argPM=this.argGeom.getPrecisionModel();if(argPM.getType()===jsts.geom.PrecisionModel.FIXED){this.bufferFixedPrecision(argPM)}else{this.bufferReducedPrecision()}};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision=function(){var precDigits;var saveException=null;for(precDigits=jsts.operation.buffer.BufferOp.MAX_PRECISION_DIGITS;precDigits>=0;precDigits--){try{this.bufferReducedPrecision2(precDigits)}catch(ex){saveException=ex}if(this.resultGeometry!==null){return}}throw saveException};jsts.operation.buffer.BufferOp.prototype.bufferOriginalPrecision=function(){try{var bufBuilder=new jsts.operation.buffer.BufferBuilder(this.bufParams);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance)}catch(e){}};jsts.operation.buffer.BufferOp.prototype.bufferReducedPrecision2=function(precisionDigits){var sizeBasedScaleFactor=jsts.operation.buffer.BufferOp.precisionScaleFactor(this.argGeom,this.distance,precisionDigits);var fixedPM=new jsts.geom.PrecisionModel(sizeBasedScaleFactor);this.bufferFixedPrecision(fixedPM)};jsts.operation.buffer.BufferOp.prototype.bufferFixedPrecision=function(fixedPM){var noder=new jsts.noding.ScaledNoder(new jsts.noding.snapround.MCIndexSnapRounder(new jsts.geom.PrecisionModel(1)),fixedPM.getScale());var bufBuilder=new jsts.operation.buffer.BufferBuilder(this.bufParams);bufBuilder.setWorkingPrecisionModel(fixedPM);bufBuilder.setNoder(noder);this.resultGeometry=bufBuilder.buffer(this.argGeom,this.distance)};(function(){var Location=jsts.geom.Location;var Position=jsts.geomgraph.Position;var Assert=jsts.util.Assert;jsts.geomgraph.GeometryGraph=function(argIndex,parentGeom,boundaryNodeRule){jsts.geomgraph.PlanarGraph.call(this);this.lineEdgeMap=new javascript.util.HashMap;this.ptLocator=new jsts.algorithm.PointLocator;this.argIndex=argIndex;this.parentGeom=parentGeom;this.boundaryNodeRule=boundaryNodeRule||jsts.algorithm.BoundaryNodeRule.OGC_SFS_BOUNDARY_RULE;if(parentGeom!==null){this.add(parentGeom)}};jsts.geomgraph.GeometryGraph.prototype=new jsts.geomgraph.PlanarGraph;jsts.geomgraph.GeometryGraph.constructor=jsts.geomgraph.GeometryGraph;jsts.geomgraph.GeometryGraph.prototype.createEdgeSetIntersector=function(){return new jsts.geomgraph.index.SimpleMCSweepLineIntersector};jsts.geomgraph.GeometryGraph.determineBoundary=function(boundaryNodeRule,boundaryCount){return boundaryNodeRule.isInBoundary(boundaryCount)?Location.BOUNDARY:Location.INTERIOR};jsts.geomgraph.GeometryGraph.prototype.parentGeom=null;jsts.geomgraph.GeometryGraph.prototype.lineEdgeMap=null;jsts.geomgraph.GeometryGraph.prototype.boundaryNodeRule=null;jsts.geomgraph.GeometryGraph.prototype.useBoundaryDeterminationRule=true;jsts.geomgraph.GeometryGraph.prototype.argIndex=null;jsts.geomgraph.GeometryGraph.prototype.boundaryNodes=null;jsts.geomgraph.GeometryGraph.prototype.hasTooFewPoints=false;jsts.geomgraph.GeometryGraph.prototype.invalidPoint=null;jsts.geomgraph.GeometryGraph.prototype.areaPtLocator=null;jsts.geomgraph.GeometryGraph.prototype.ptLocator=null;jsts.geomgraph.GeometryGraph.prototype.getGeometry=function(){return this.parentGeom};jsts.geomgraph.GeometryGraph.prototype.getBoundaryNodes=function(){if(this.boundaryNodes===null)this.boundaryNodes=this.nodes.getBoundaryNodes(this.argIndex);return this.boundaryNodes};jsts.geomgraph.GeometryGraph.prototype.getBoundaryNodeRule=function(){return this.boundaryNodeRule};jsts.geomgraph.GeometryGraph.prototype.findEdge=function(line){return this.lineEdgeMap.get(line)};jsts.geomgraph.GeometryGraph.prototype.computeSplitEdges=function(edgelist){for(var i=this.edges.iterator();i.hasNext();){var e=i.next();e.eiList.addSplitEdges(edgelist)}};jsts.geomgraph.GeometryGraph.prototype.add=function(g){if(g.isEmpty()){return}if(g instanceof jsts.geom.MultiPolygon)this.useBoundaryDeterminationRule=false;if(g instanceof jsts.geom.Polygon)this.addPolygon(g);else if(g instanceof jsts.geom.LineString)this.addLineString(g);else if(g instanceof jsts.geom.Point)this.addPoint(g);else if(g instanceof jsts.geom.MultiPoint)this.addCollection(g);else if(g instanceof jsts.geom.MultiLineString)this.addCollection(g);else if(g instanceof jsts.geom.MultiPolygon)this.addCollection(g);else if(g instanceof jsts.geom.GeometryCollection)this.addCollection(g);else throw new jsts.error.IllegalArgumentError("Geometry type not supported.")};jsts.geomgraph.GeometryGraph.prototype.addCollection=function(gc){for(var i=0;i<gc.getNumGeometries();i++){var g=gc.getGeometryN(i);this.add(g)}};jsts.geomgraph.GeometryGraph.prototype.addEdge=function(e){this.insertEdge(e);var coord=e.getCoordinates();this.insertPoint(this.argIndex,coord[0],Location.BOUNDARY);this.insertPoint(this.argIndex,coord[coord.length-1],Location.BOUNDARY)};jsts.geomgraph.GeometryGraph.prototype.addPoint=function(p){var coord=p.getCoordinate();this.insertPoint(this.argIndex,coord,Location.INTERIOR)};jsts.geomgraph.GeometryGraph.prototype.addLineString=function(line){var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(line.getCoordinates());if(coord.length<2){this.hasTooFewPoints=true;this.invalidPoint=coords[0];return}var e=new jsts.geomgraph.Edge(coord,new jsts.geomgraph.Label(this.argIndex,Location.INTERIOR));this.lineEdgeMap.put(line,e);this.insertEdge(e);Assert.isTrue(coord.length>=2,"found LineString with single point");this.insertBoundaryPoint(this.argIndex,coord[0]);this.insertBoundaryPoint(this.argIndex,coord[coord.length-1])};jsts.geomgraph.GeometryGraph.prototype.addPolygonRing=function(lr,cwLeft,cwRight){if(lr.isEmpty())return;var coord=jsts.geom.CoordinateArrays.removeRepeatedPoints(lr.getCoordinates());if(coord.length<4){this.hasTooFewPoints=true;this.invalidPoint=coord[0];return}var left=cwLeft;var right=cwRight;if(jsts.algorithm.CGAlgorithms.isCCW(coord)){left=cwRight;right=cwLeft}var e=new jsts.geomgraph.Edge(coord,new jsts.geomgraph.Label(this.argIndex,Location.BOUNDARY,left,right));this.lineEdgeMap.put(lr,e);this.insertEdge(e);this.insertPoint(this.argIndex,coord[0],Location.BOUNDARY)};jsts.geomgraph.GeometryGraph.prototype.addPolygon=function(p){this.addPolygonRing(p.getExteriorRing(),Location.EXTERIOR,Location.INTERIOR);for(var i=0;i<p.getNumInteriorRing();i++){var hole=p.getInteriorRingN(i);this.addPolygonRing(hole,Location.INTERIOR,Location.EXTERIOR)}};jsts.geomgraph.GeometryGraph.prototype.computeEdgeIntersections=function(g,li,includeProper){var si=new jsts.geomgraph.index.SegmentIntersector(li,includeProper,true);si.setBoundaryNodes(this.getBoundaryNodes(),g.getBoundaryNodes());var esi=this.createEdgeSetIntersector();esi.computeIntersections(this.edges,g.edges,si);return si};jsts.geomgraph.GeometryGraph.prototype.computeSelfNodes=function(li,computeRingSelfNodes){var si=new jsts.geomgraph.index.SegmentIntersector(li,true,false);var esi=this.createEdgeSetIntersector();if(!computeRingSelfNodes&&(this.parentGeom instanceof jsts.geom.LinearRing||this.parentGeom instanceof jsts.geom.Polygon||this.parentGeom instanceof jsts.geom.MultiPolygon)){esi.computeIntersections(this.edges,si,false)}else{esi.computeIntersections(this.edges,si,true)}this.addSelfIntersectionNodes(this.argIndex);return si};jsts.geomgraph.GeometryGraph.prototype.insertPoint=function(argIndex,coord,onLocation){var n=this.nodes.addNode(coord);var lbl=n.getLabel();if(lbl==null){n.label=new jsts.geomgraph.Label(argIndex,onLocation)}else lbl.setLocation(argIndex,onLocation)};jsts.geomgraph.GeometryGraph.prototype.insertBoundaryPoint=function(argIndex,coord){var n=this.nodes.addNode(coord);var lbl=n.getLabel();var boundaryCount=1;var loc=Location.NONE;if(lbl!==null)loc=lbl.getLocation(argIndex,Position.ON);if(loc===Location.BOUNDARY)boundaryCount++;var newLoc=jsts.geomgraph.GeometryGraph.determineBoundary(this.boundaryNodeRule,boundaryCount);lbl.setLocation(argIndex,newLoc)};jsts.geomgraph.GeometryGraph.prototype.addSelfIntersectionNodes=function(argIndex){for(var i=this.edges.iterator();i.hasNext();){var e=i.next();var eLoc=e.getLabel().getLocation(argIndex);for(var eiIt=e.eiList.iterator();eiIt.hasNext();){var ei=eiIt.next();this.addSelfIntersectionNode(argIndex,ei.coord,eLoc)}}};jsts.geomgraph.GeometryGraph.prototype.addSelfIntersectionNode=function(argIndex,coord,loc){if(this.isBoundaryNode(argIndex,coord))return;if(loc===Location.BOUNDARY&&this.useBoundaryDeterminationRule)this.insertBoundaryPoint(argIndex,coord);else this.insertPoint(argIndex,coord,loc)};jsts.geomgraph.GeometryGraph.prototype.getInvalidPoint=function(){return this.invalidPoint}})();jsts.operation.buffer.OffsetSegmentString=function(){this.ptList=[]};jsts.operation.buffer.OffsetSegmentString.prototype.ptList=null;jsts.operation.buffer.OffsetSegmentString.prototype.precisionModel=null;jsts.operation.buffer.OffsetSegmentString.prototype.minimimVertexDistance=0;jsts.operation.buffer.OffsetSegmentString.prototype.setPrecisionModel=function(precisionModel){this.precisionModel=precisionModel};jsts.operation.buffer.OffsetSegmentString.prototype.setMinimumVertexDistance=function(minimimVertexDistance){this.minimimVertexDistance=minimimVertexDistance};jsts.operation.buffer.OffsetSegmentString.prototype.addPt=function(pt){var bufPt=new jsts.geom.Coordinate(pt);this.precisionModel.makePrecise(bufPt);if(this.isRedundant(bufPt))return;this.ptList.push(bufPt)};jsts.operation.buffer.OffsetSegmentString.prototype.addPts=function(pt,isForward){if(isForward){for(var i=0;i<pt.length;i++){this.addPt(pt[i])}}else{for(var i=pt.length-1;i>=0;i--){this.addPt(pt[i])}}};jsts.operation.buffer.OffsetSegmentString.prototype.isRedundant=function(pt){if(this.ptList.length<1)return false;var lastPt=this.ptList[this.ptList.length-1];var ptDist=pt.distance(lastPt);if(ptDist<this.minimimVertexDistance)return true;return false};jsts.operation.buffer.OffsetSegmentString.prototype.closeRing=function(){if(this.ptList.length<1)return;var startPt=new jsts.geom.Coordinate(this.ptList[0]);var lastPt=this.ptList[this.ptList.length-1];var last2Pt=null;if(this.ptList.length>=2)last2Pt=this.ptList[this.ptList.length-2];if(startPt.equals(lastPt))return;this.ptList.push(startPt)};jsts.operation.buffer.OffsetSegmentString.prototype.reverse=function(){};jsts.operation.buffer.OffsetSegmentString.prototype.getCoordinates=function(){return this.ptList};jsts.algorithm.distance.PointPairDistance=function(){this.pt=[new jsts.geom.Coordinate,new jsts.geom.Coordinate]};jsts.algorithm.distance.PointPairDistance.prototype.pt=null;jsts.algorithm.distance.PointPairDistance.prototype.distance=NaN;jsts.algorithm.distance.PointPairDistance.prototype.isNull=true;jsts.algorithm.distance.PointPairDistance.prototype.initialize=function(p0,p1,distance){if(p0===undefined){this.isNull=true;return}this.pt[0].setCoordinate(p0);this.pt[1].setCoordinate(p1);this.distance=distance!==undefined?distance:p0.distance(p1);this.isNull=false};jsts.algorithm.distance.PointPairDistance.prototype.getDistance=function(){return this.distance};jsts.algorithm.distance.PointPairDistance.prototype.getCoordinates=function(){return this.pt};jsts.algorithm.distance.PointPairDistance.prototype.getCoordinate=function(i){return this.pt[i]};jsts.algorithm.distance.PointPairDistance.prototype.setMaximum=function(ptDist){if(arguments.length===2){this.setMaximum2.apply(this,arguments);return}this.setMaximum(ptDist.pt[0],ptDist.pt[1])};jsts.algorithm.distance.PointPairDistance.prototype.setMaximum2=function(p0,p1){if(this.isNull){this.initialize(p0,p1);return}var dist=p0.distance(p1);if(dist>this.distance)this.initialize(p0,p1,dist)};jsts.algorithm.distance.PointPairDistance.prototype.setMinimum=function(ptDist){if(arguments.length===2){this.setMinimum2.apply(this,arguments);return}this.setMinimum(ptDist.pt[0],ptDist.pt[1])};jsts.algorithm.distance.PointPairDistance.prototype.setMinimum2=function(p0,p1){if(this.isNull){this.initialize(p0,p1);return}var dist=p0.distance(p1);if(dist<this.distance)this.initialize(p0,p1,dist)};(function(){var PointPairDistance=jsts.algorithm.distance.PointPairDistance;var DistanceToPoint=jsts.algorithm.distance.DistanceToPoint;var MaxPointDistanceFilter=function(geom){this.maxPtDist=new PointPairDistance;this.minPtDist=new PointPairDistance;this.euclideanDist=new DistanceToPoint;this.geom=geom};MaxPointDistanceFilter.prototype=new jsts.geom.CoordinateFilter;MaxPointDistanceFilter.prototype.maxPtDist=new PointPairDistance;MaxPointDistanceFilter.prototype.minPtDist=new PointPairDistance;MaxPointDistanceFilter.prototype.euclideanDist=new DistanceToPoint;MaxPointDistanceFilter.prototype.geom;MaxPointDistanceFilter.prototype.filter=function(pt){this.minPtDist.initialize();DistanceToPoint.computeDistance(this.geom,pt,this.minPtDist);this.maxPtDist.setMaximum(this.minPtDist)};MaxPointDistanceFilter.prototype.getMaxPointDistance=function(){return this.maxPtDist};var MaxDensifiedByFractionDistanceFilter=function(geom,fraction){this.maxPtDist=new PointPairDistance;this.minPtDist=new PointPairDistance;this.geom=geom;this.numSubSegs=Math.round(1/fraction)};MaxDensifiedByFractionDistanceFilter.prototype=new jsts.geom.CoordinateSequenceFilter;MaxDensifiedByFractionDistanceFilter.prototype.maxPtDist=new PointPairDistance;MaxDensifiedByFractionDistanceFilter.prototype.minPtDist=new PointPairDistance;MaxDensifiedByFractionDistanceFilter.prototype.geom;MaxDensifiedByFractionDistanceFilter.prototype.numSubSegs=0;MaxDensifiedByFractionDistanceFilter.prototype.filter=function(seq,index){if(index==0)return;var p0=seq[index-1];var p1=seq[index];var delx=(p1.x-p0.x)/this.numSubSegs;var dely=(p1.y-p0.y)/this.numSubSegs;for(var i=0;i<this.numSubSegs;i++){var x=p0.x+i*delx;var y=p0.y+i*dely;var pt=new jsts.geom.Coordinate(x,y);this.minPtDist.initialize();DistanceToPoint.computeDistance(this.geom,pt,this.minPtDist);this.maxPtDist.setMaximum(this.minPtDist)}};MaxDensifiedByFractionDistanceFilter.prototype.isGeometryChanged=function(){return false};MaxDensifiedByFractionDistanceFilter.prototype.isDone=function(){return false};MaxDensifiedByFractionDistanceFilter.prototype.getMaxPointDistance=function(){return this.maxPtDist};jsts.algorithm.distance.DiscreteHausdorffDistance=function(g0,g1){this.g0=g0;this.g1=g1;this.ptDist=new jsts.algorithm.distance.PointPairDistance};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.g0=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.g1=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.ptDist=null;jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.densifyFrac=0;jsts.algorithm.distance.DiscreteHausdorffDistance.distance=function(g0,g1,densifyFrac){var dist=new jsts.algorithm.distance.DiscreteHausdorffDistance(g0,g1);if(densifyFrac!==undefined)dist.setDensifyFraction(densifyFrac);return dist.distance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.setDensifyFraction=function(densifyFrac){if(densifyFrac>1||densifyFrac<=0)throw new jsts.error.IllegalArgumentError("Fraction is not in range (0.0 - 1.0]");this.densifyFrac=densifyFrac};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.distance=function(){this.compute(this.g0,this.g1);return ptDist.getDistance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.orientedDistance=function(){this.computeOrientedDistance(this.g0,this.g1,this.ptDist);return this.ptDist.getDistance()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.getCoordinates=function(){return ptDist.getCoordinates()};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.compute=function(g0,g1){this.computeOrientedDistance(g0,g1,this.ptDist);this.computeOrientedDistance(g1,g0,this.ptDist)};jsts.algorithm.distance.DiscreteHausdorffDistance.prototype.computeOrientedDistance=function(discreteGeom,geom,ptDist){var distFilter=new MaxPointDistanceFilter(geom);discreteGeom.apply(distFilter);ptDist.setMaximum(distFilter.getMaxPointDistance());if(this.densifyFrac>0){var fracFilter=new MaxDensifiedByFractionDistanceFilter(geom,this.densifyFrac);discreteGeom.apply(fracFilter);ptDist.setMaximum(fracFilter.getMaxPointDistance())}}})();jsts.algorithm.MinimumBoundingCircle=function(geom){this.input=null;this.extremalPts=null;this.centre=null;this.radius=0;this.input=geom};jsts.algorithm.MinimumBoundingCircle.prototype.getCircle=function(){this.compute();if(this.centre===null){return this.input.getFactory().createPolygon(null,null)}var centrePoint=this.input.getFactory().createPoint(this.centre);if(this.radius===0){return centrePoint}return centrePoint.buffer(this.radius)};jsts.algorithm.MinimumBoundingCircle.prototype.getExtremalPoints=function(){this.compute();return this.extremalPts};jsts.algorithm.MinimumBoundingCircle.prototype.getCentre=function(){this.compute();return this.centre};jsts.algorithm.MinimumBoundingCircle.prototype.getRadius=function(){this.compute();return this.radius};jsts.algorithm.MinimumBoundingCircle.prototype.computeCentre=function(){switch(this.extremalPts.length){case 0:this.centre=null;break;case 1:this.centre=this.extremalPts[0];break;case 2:this.centre=new jsts.geom.Coordinate((this.extremalPts[0].x+this.extremalPts[1].x)/2,(this.extremalPts[0].y+this.extremalPts[1].y)/2);break;case 3:this.centre=jsts.geom.Triangle.circumcentre(this.extremalPts[0],this.extremalPts[1],this.extremalPts[2]);break}};jsts.algorithm.MinimumBoundingCircle.prototype.compute=function(){if(this.extremalPts!==null){return}this.computeCirclePoints();this.computeCentre();if(this.centre!==null){this.radius=this.centre.distance(this.extremalPts[0])}};jsts.algorithm.MinimumBoundingCircle.prototype.computeCirclePoints=function(){if(this.input.isEmpty()){this.extremalPts=[];return}var pts;if(this.input.getNumPoints()===1){pts=this.input.getCoordinates();this.extremalPts=[new jsts.geom.Coordinate(pts[0])];return}var convexHull=this.input.convexHull();var hullPts=convexHull.getCoordinates();pts=hullPts;if(hullPts[0].equals2D(hullPts[hullPts.length-1])){pts=[];jsts.geom.CoordinateArrays.copyDeep(hullPts,0,pts,0,hullPts.length-1)}if(pts.length<=2){this.extremalPts=jsts.geom.CoordinateArrays.copyDeep(pts);return}var P=jsts.algorithm.MinimumBoundingCircle.lowestPoint(pts);var Q=jsts.algorithm.MinimumBoundingCircle.pointWitMinAngleWithX(pts,P);for(var i=0;i<pts.length;i++){var R=jsts.algorithm.MinimumBoundingCircle.pointWithMinAngleWithSegment(pts,P,Q);if(jsts.algorithm.Angle.isObtuse(P,R,Q)){this.extremalPts=[new jsts.geom.Coordinate(P),new jsts.geom.Coordinate(Q)];return}if(jsts.algorithm.Angle.isObtuse(R,P,Q)){P=R;continue}if(jsts.algorithm.Angle.isObtuse(R,Q,P)){Q=R;continue}this.extremalPts=[new jsts.geom.Coordinate(P),new jsts.geom.Coordinate(Q),new jsts.geom.Coordinate(R)];return}throw new Error("Logic failure in Minimum Bounding Circle algorithm!")};jsts.algorithm.MinimumBoundingCircle.lowestPoint=function(pts){var min=pts[0];for(var i=1;i<pts.length;i++){if(pts[i].y<min.y){min=pts[i]}}return min};jsts.algorithm.MinimumBoundingCircle.pointWitMinAngleWithX=function(pts,P){var minSin=Number.MAX_VALUE;var minAngPt=null;for(var i=0;i<pts.length;i++){var p=pts[i];if(p===P)continue;var dx=p.x-P.x;var dy=p.y-P.y;if(dy<0)dy=-dy;var len=Math.sqrt(dx*dx+dy*dy);var sin=dy/len;if(sin<minSin){minSin=sin;minAngPt=p}}return minAngPt};jsts.algorithm.MinimumBoundingCircle.pointWithMinAngleWithSegment=function(pts,P,Q){var minAng=Number.MAX_VALUE;var minAngPt=null;for(var i=0;i<pts.length;i++){var p=pts[i];if(p===P)continue;if(p===Q)continue;var ang=jsts.algorithm.Angle.angleBetween(P,p,Q);if(ang<minAng){minAng=ang;minAngPt=p}}return minAngPt};jsts.noding.ScaledNoder=function(noder,scaleFactor,offsetX,offsetY){
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intSegStrings=inputSegStrings;if(this.isScaled)intSegStrings=this.scale(inputSegStrings);this.noder.computeNodes(intSegStrings)};jsts.noding.ScaledNoder.prototype.scale=function(segStrings){if(segStrings instanceof Array){return this.scale2(segStrings)}var transformed=new javascript.util.ArrayList;for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();transformed.add(new jsts.noding.NodedSegmentString(this.scale(ss.getCoordinates()),ss.getData()))}return transformed};jsts.noding.ScaledNoder.prototype.scale2=function(pts){var roundPts=[];for(var i=0;i<pts.length;i++){roundPts[i]=new jsts.geom.Coordinate(Math.round((pts[i].x-this.offsetX)*this.scaleFactor),Math.round((pts[i].y-this.offsetY)*this.scaleFactor))}var roundPtsNoDup=jsts.geom.CoordinateArrays.removeRepeatedPoints(roundPts);return roundPtsNoDup};jsts.noding.ScaledNoder.prototype.rescale=function(segStrings){if(segStrings instanceof Array){this.rescale2(segStrings);return}for(var i=segStrings.iterator();i.hasNext();){var ss=i.next();this.rescale(ss.getCoordinates())}};jsts.noding.ScaledNoder.prototype.rescale2=function(pts){for(var i=0;i<pts.length;i++){pts[i].x=pts[i].x/this.scaleFactor+this.offsetX;pts[i].y=pts[i].y/this.scaleFactor+this.offsetY}};(function(){var ArrayList=javascript.util.ArrayList;jsts.geomgraph.index.SegmentIntersector=function(li,includeProper,recordIsolated){this.li=li;this.includeProper=includeProper;this.recordIsolated=recordIsolated};jsts.geomgraph.index.SegmentIntersector.isAdjacentSegments=function(i1,i2){return Math.abs(i1-i2)===1};jsts.geomgraph.index.SegmentIntersector.prototype._hasIntersection=false;jsts.geomgraph.index.SegmentIntersector.prototype.hasProper=false;jsts.geomgraph.index.SegmentIntersector.prototype.hasProperInterior=false;jsts.geomgraph.index.SegmentIntersector.prototype.properIntersectionPoint=null;jsts.geomgraph.index.SegmentIntersector.prototype.li=null;jsts.geomgraph.index.SegmentIntersector.prototype.includeProper=null;jsts.geomgraph.index.SegmentIntersector.prototype.recordIsolated=null;jsts.geomgraph.index.SegmentIntersector.prototype.isSelfIntersection=null;jsts.geomgraph.index.SegmentIntersector.prototype.numIntersections=0;jsts.geomgraph.index.SegmentIntersector.prototype.numTests=0;jsts.geomgraph.index.SegmentIntersector.prototype.bdyNodes=null;jsts.geomgraph.index.SegmentIntersector.prototype.setBoundaryNodes=function(bdyNodes0,bdyNodes1){this.bdyNodes=[];this.bdyNodes[0]=bdyNodes0;this.bdyNodes[1]=bdyNodes1};jsts.geomgraph.index.SegmentIntersector.prototype.getProperIntersectionPoint=function(){return this.properIntersectionPoint};jsts.geomgraph.index.SegmentIntersector.prototype.hasIntersection=function(){return this._hasIntersection};jsts.geomgraph.index.SegmentIntersector.prototype.hasProperIntersection=function(){return this.hasProper};jsts.geomgraph.index.SegmentIntersector.prototype.hasProperInteriorIntersection=function(){return this.hasProperInterior};jsts.geomgraph.index.SegmentIntersector.prototype.isTrivialIntersection=function(e0,segIndex0,e1,segIndex1){if(e0===e1){if(this.li.getIntersectionNum()===1){if(jsts.geomgraph.index.SegmentIntersector.isAdjacentSegments(segIndex0,segIndex1))return true;if(e0.isClosed()){var maxSegIndex=e0.getNumPoints()-1;if(segIndex0===0&&segIndex1===maxSegIndex||segIndex1===0&&segIndex0===maxSegIndex){return true}}}}return false};jsts.geomgraph.index.SegmentIntersector.prototype.addIntersections=function(e0,segIndex0,e1,segIndex1){if(e0===e1&&segIndex0===segIndex1)return;this.numTests++;var p00=e0.getCoordinates()[segIndex0];var p01=e0.getCoordinates()[segIndex0+1];var p10=e1.getCoordinates()[segIndex1];var p11=e1.getCoordinates()[segIndex1+1];this.li.computeIntersection(p00,p01,p10,p11);if(this.li.hasIntersection()){if(this.recordIsolated){e0.setIsolated(false);e1.setIsolated(false)}this.numIntersections++;if(!this.isTrivialIntersection(e0,segIndex0,e1,segIndex1)){this._hasIntersection=true;if(this.includeProper||!this.li.isProper()){e0.addIntersections(this.li,segIndex0,0);e1.addIntersections(this.li,segIndex1,1)}if(this.li.isProper()){this.properIntersectionPoint=this.li.getIntersection(0).clone();this.hasProper=true;if(!this.isBoundaryPoint(this.li,this.bdyNodes))this.hasProperInterior=true}}}};jsts.geomgraph.index.SegmentIntersector.prototype.isBoundaryPoint=function(li,bdyNodes){if(bdyNodes===null)return false;if(bdyNodes instanceof Array){if(this.isBoundaryPoint(li,bdyNodes[0]))return true;if(this.isBoundaryPoint(li,bdyNodes[1]))return true;return false}else{for(var 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b=0,c=this.a.length;b<c;b++)if(0===this.a[b].compareTo(a))return!0;return!1};L.prototype.contains=L.prototype.contains;L.prototype.add=function(a){if(this.contains(a))return!1;for(var b=0,c=this.a.length;b<c;b++)if(1===this.a[b].compareTo(a))return this.a.splice(b,0,a),!0;this.a.push(a);return!0};L.prototype.add=L.prototype.add;L.prototype.e=function(a){for(a=a.f();a.c();)this.add(a.next());return!0};L.prototype.addAll=L.prototype.e;L.prototype.remove=function(){throw new r};L.prototype.remove=L.prototype.remove;L.prototype.size=function(){return this.a.length};L.prototype.size=L.prototype.size;L.prototype.g=function(){return 0===this.a.length};L.prototype.isEmpty=L.prototype.g;L.prototype.h=function(){for(var a=[],b=0,c=this.a.length;b<c;b++)a.push(this.a[b]);return a};L.prototype.toArray=L.prototype.h;L.prototype.f=function(){return new N(this)};L.prototype.iterator=L.prototype.f;function N(a){this.l=a}f("$jscomp.scope.Iterator_$2",N);N.prototype.l=null;N.prototype.b=0;N.prototype.next=function(){if(this.b===this.l.size())throw new q;return this.l.a[this.b++]};N.prototype.next=N.prototype.next;N.prototype.c=function(){return this.b<this.l.size()?!0:!1};N.prototype.hasNext=N.prototype.c;N.prototype.remove=function(){throw new r};N.prototype.remove=N.prototype.remove;"undefined"!==typeof global&&(global.javascript={},global.javascript.util={},global.javascript.util.ArrayList=s,global.javascript.util.Arrays=v,global.javascript.util.Collection=m,global.javascript.util.EmptyStackException=h,global.javascript.util.HashMap=w,global.javascript.util.HashSet=y,global.javascript.util.IndexOutOfBoundsException=k,global.javascript.util.Iterator=l,global.javascript.util.List=n,global.javascript.util.Map=p,global.javascript.util.NoSuchElementException=q,global.javascript.util.OperationNotSupported=r,global.javascript.util.Set=x,global.javascript.util.SortedMap=A,global.javascript.util.SortedSet=B,global.javascript.util.Stack=C,global.javascript.util.TreeMap=H,global.javascript.util.TreeSet=L)}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],19:[function(require,module,exports){require("./dist/javascript.util-node.min.js")},{"./dist/javascript.util-node.min.js":18}],20:[function(require,module,exports){var extent=require("turf-extent"),point=require("turf-point");module.exports=function(layer,done){var ext=extent(layer);var x=(ext[0]+ext[2])/2;var y=(ext[1]+ext[3])/2;return point([x,y])}},{"turf-extent":69,"turf-point":101}],21:[function(require,module,exports){var each=require("turf-meta").coordEach;var point=require("turf-point");module.exports=function(features){var xSum=0,ySum=0,len=0;each(features,function(coord){xSum+=coord[0];ySum+=coord[1];len++},true);return point([xSum/len,ySum/len])}},{"turf-meta":22,"turf-point":101}],22:[function(require,module,exports){function coordEach(layer,callback,excludeWrapCoord){var i,j,k,g,geometry,stopG,coords,geometryMaybeCollection,wrapShrink=0,isGeometryCollection,isFeatureCollection=layer.type==="FeatureCollection",isFeature=layer.type==="Feature",stop=isFeatureCollection?layer.features.length:1;for(i=0;i<stop;i++){geometryMaybeCollection=isFeatureCollection?layer.features[i].geometry:isFeature?layer.geometry:layer;isGeometryCollection=geometryMaybeCollection.type==="GeometryCollection";stopG=isGeometryCollection?geometryMaybeCollection.geometries.length:1;for(g=0;g<stopG;g++){geometry=isGeometryCollection?geometryMaybeCollection.geometries[g]:geometryMaybeCollection;coords=geometry.coordinates;wrapShrink=excludeWrapCoord&&(geometry.type==="Polygon"||geometry.type==="MultiPolygon")?1:0;if(geometry.type==="Point"){callback(coords)}else if(geometry.type==="LineString"||geometry.type==="MultiPoint"){for(j=0;j<coords.length;j++)callback(coords[j])}else if(geometry.type==="Polygon"||geometry.type==="MultiLineString"){for(j=0;j<coords.length;j++)for(k=0;k<coords[j].length-wrapShrink;k++)callback(coords[j][k])}else if(geometry.type==="MultiPolygon"){for(j=0;j<coords.length;j++)for(k=0;k<coords[j].length;k++)for(l=0;l<coords[j][k].length-wrapShrink;l++)callback(coords[j][k][l])}else{throw new Error("Unknown Geometry Type")}}}}module.exports.coordEach=coordEach;function coordReduce(layer,callback,memo,excludeWrapCoord){coordEach(layer,function(coord){memo=callback(memo,coord)},excludeWrapCoord);return memo}module.exports.coordReduce=coordReduce;function propEach(layer,callback){var i;switch(layer.type){case"FeatureCollection":features=layer.features;for(i=0;i<layer.features.length;i++){callback(layer.features[i].properties)}break;case"Feature":callback(layer.properties);break}}module.exports.propEach=propEach;function propReduce(layer,callback,memo){propEach(layer,function(prop){memo=callback(memo,prop)});return memo}module.exports.propReduce=propReduce},{}],23:[function(require,module,exports){module.exports=function(fc){var type=fc.features[0].geometry.type;var geometries=fc.features.map(function(f){return f.geometry});switch(type){case"Point":return{type:"Feature",properties:{},geometry:{type:"MultiPoint",coordinates:pluckCoods(geometries)}};case"LineString":return{type:"Feature",properties:{},geometry:{type:"MultiLineString",coordinates:pluckCoods(geometries)}};case"Polygon":return{type:"Feature",properties:{},geometry:{type:"MultiPolygon",coordinates:pluckCoods(geometries)}};default:return fc}};function pluckCoods(multi){return multi.map(function(geom){return geom.coordinates})}},{}],24:[function(require,module,exports){var t={};t.tin=require("turf-tin");t.merge=require("turf-merge");t.distance=require("turf-distance");t.point=require("turf-point");module.exports=function(points,maxEdge,units){if(typeof maxEdge!=="number")throw new Error("maxEdge parameter is required");if(typeof units!=="string")throw new Error("units parameter is required");var tinPolys=t.tin(points);var filteredPolys=tinPolys.features.filter(filterTriangles);tinPolys.features=filteredPolys;function filterTriangles(triangle){var pt1=t.point(triangle.geometry.coordinates[0][0]);var pt2=t.point(triangle.geometry.coordinates[0][1]);var pt3=t.point(triangle.geometry.coordinates[0][2]);var dist1=t.distance(pt1,pt2,units);var dist2=t.distance(pt2,pt3,units);var dist3=t.distance(pt1,pt3,units);return dist1<=maxEdge&&dist2<=maxEdge&&dist3<=maxEdge}return t.merge(tinPolys)}},{"turf-distance":59,"turf-merge":92,"turf-point":101,"turf-tin":117}],25:[function(require,module,exports){var each=require("turf-meta").coordEach,convexHull=require("convex-hull"),polygon=require("turf-polygon");module.exports=function(fc){var points=[];each(fc,function(coord){points.push(coord)});var hull=convexHull(points);var ring=[];for(var i=0;i<hull.length;i++){ring.push(points[hull[i][0]])}ring.push(points[hull[hull.length-1][1]]);return polygon([ring])}},{"convex-hull":26,"turf-meta":54,"turf-polygon":102}],26:[function(require,module,exports){"use strict";var convexHull1d=require("./lib/ch1d");var convexHull2d=require("./lib/ch2d");var convexHullnd=require("./lib/chnd");module.exports=convexHull;function convexHull(points){var n=points.length;if(n===0){return[]}else if(n===1){return[[0]]}var d=points[0].length;if(d===0){return[]}else if(d===1){return convexHull1d(points)}else if(d===2){return convexHull2d(points)}return convexHullnd(points,d)}},{"./lib/ch1d":27,"./lib/ch2d":28,"./lib/chnd":29}],27:[function(require,module,exports){"use strict";module.exports=convexHull1d;function convexHull1d(points){var lo=0;var hi=0;for(var i=1;i<points.length;++i){if(points[i][0]<points[lo][0]){lo=i}if(points[i][0]>points[hi][0]){hi=i}}if(lo<hi){return[[lo],[hi]]}else if(lo>hi){return[[hi],[lo]]}else{return[[lo]]}}},{}],28:[function(require,module,exports){"use strict";module.exports=convexHull2D;var monotoneHull=require("monotone-convex-hull-2d");function convexHull2D(points){var hull=monotoneHull(points);var h=hull.length;if(h<=2){return[]}var edges=new Array(h);var a=hull[h-1];for(var i=0;i<h;++i){var b=hull[i];edges[i]=[a,b];a=b}return edges}},{"monotone-convex-hull-2d":47}],29:[function(require,module,exports){"use strict";module.exports=convexHullnD;var ich=require("incremental-convex-hull");var aff=require("affine-hull");function permute(points,front){var n=points.length;var npoints=new Array(n);for(var i=0;i<front.length;++i){npoints[i]=points[front[i]]}var ptr=front.length;for(var i=0;i<n;++i){if(front.indexOf(i)<0){npoints[ptr++]=points[i]}}return npoints}function invPermute(cells,front){var nc=cells.length;var nf=front.length;for(var i=0;i<nc;++i){var c=cells[i];for(var j=0;j<c.length;++j){var x=c[j];if(x<nf){c[j]=front[x]}else{x=x-nf;for(var k=0;k<nf;++k){if(x>=front[k]){x+=1}}c[j]=x}}}return cells}function convexHullnD(points,d){try{return ich(points,true)}catch(e){var ah=aff(points);if(ah.length<=d){return[]}var npoints=permute(points,ah);var nhull=ich(npoints,true);return invPermute(nhull,ah)}}},{"affine-hull":30,"incremental-convex-hull":37}],30:[function(require,module,exports){"use strict";module.exports=affineHull;var orient=require("robust-orientation");function linearlyIndependent(points,d){var nhull=new Array(d+1);for(var i=0;i<points.length;++i){nhull[i]=points[i]}for(var i=0;i<=points.length;++i){for(var j=points.length;j<=d;++j){var x=new Array(d);for(var k=0;k<d;++k){x[k]=Math.pow(j+1-i,k)}nhull[j]=x}var o=orient.apply(void 0,nhull);if(o){return true}}return false}function affineHull(points){var n=points.length;if(n===0){return[]}if(n===1){return[0]}var d=points[0].length;var frame=[points[0]];var index=[0];for(var i=1;i<n;++i){frame.push(points[i]);if(!linearlyIndependent(frame,d)){frame.pop();continue}index.push(i);if(index.length===d+1){return index}}return index}},{"robust-orientation":36}],31:[function(require,module,exports){"use strict";module.exports=fastTwoSum;function fastTwoSum(a,b,result){var x=a+b;var bv=x-a;var av=x-bv;var br=b-bv;var ar=a-av;if(result){result[0]=ar+br;result[1]=x;return result}return[ar+br,x]}},{}],32:[function(require,module,exports){"use strict";var twoProduct=require("two-product");var twoSum=require("two-sum");module.exports=scaleLinearExpansion;function scaleLinearExpansion(e,scale){var n=e.length;if(n===1){var ts=twoProduct(e[0],scale);if(ts[0]){return ts}return[ts[1]]}var g=new Array(2*n);var q=[.1,.1];var t=[.1,.1];var count=0;twoProduct(e[0],scale,q);if(q[0]){g[count++]=q[0]}for(var i=1;i<n;++i){twoProduct(e[i],scale,t);var pq=q[1];twoSum(pq,t[0],q);if(q[0]){g[count++]=q[0]}var a=t[1];var b=q[1];var x=a+b;var bv=x-a;var y=b-bv;q[1]=x;if(y){g[count++]=y}}if(q[1]){g[count++]=q[1]}if(count===0){g[count++]=0}g.length=count;return g}},{"two-product":35,"two-sum":31}],33:[function(require,module,exports){"use strict";module.exports=robustSubtract;function scalarScalar(a,b){var x=a+b;var bv=x-a;var av=x-bv;var br=b-bv;var ar=a-av;var y=ar+br;if(y){return[y,x]}return[x]}function robustSubtract(e,f){var ne=e.length|0;var nf=f.length|0;if(ne===1&&nf===1){return scalarScalar(e[0],-f[0])}var n=ne+nf;var g=new Array(n);var count=0;var eptr=0;var fptr=0;var abs=Math.abs;var ei=e[eptr];var ea=abs(ei);var fi=-f[fptr];var fa=abs(fi);var a,b;if(ea<fa){b=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{b=fi;fptr+=1;if(fptr<nf){fi=-f[fptr];fa=abs(fi)}}if(eptr<ne&&ea<fa||fptr>=nf){a=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{a=fi;fptr+=1;if(fptr<nf){fi=-f[fptr];fa=abs(fi)}}var x=a+b;var bv=x-a;var y=b-bv;var q0=y;var q1=x;var _x,_bv,_av,_br,_ar;while(eptr<ne&&fptr<nf){if(ea<fa){a=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{a=fi;fptr+=1;if(fptr<nf){fi=-f[fptr];fa=abs(fi)}}b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x}while(eptr<ne){a=ei;b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x;eptr+=1;if(eptr<ne){ei=e[eptr]}}while(fptr<nf){a=fi;b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x;fptr+=1;if(fptr<nf){fi=-f[fptr]}}if(q0){g[count++]=q0}if(q1){g[count++]=q1}if(!count){g[count++]=0}g.length=count;return g}},{}],34:[function(require,module,exports){"use strict";module.exports=linearExpansionSum;function scalarScalar(a,b){var x=a+b;var bv=x-a;var av=x-bv;var br=b-bv;var ar=a-av;var y=ar+br;if(y){return[y,x]}return[x]}function linearExpansionSum(e,f){var ne=e.length|0;var nf=f.length|0;if(ne===1&&nf===1){return scalarScalar(e[0],f[0])}var n=ne+nf;var g=new Array(n);var count=0;var eptr=0;var fptr=0;var abs=Math.abs;var ei=e[eptr];var ea=abs(ei);var fi=f[fptr];var fa=abs(fi);var a,b;if(ea<fa){b=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{b=fi;fptr+=1;if(fptr<nf){fi=f[fptr];fa=abs(fi)}}if(eptr<ne&&ea<fa||fptr>=nf){a=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{a=fi;fptr+=1;if(fptr<nf){fi=f[fptr];fa=abs(fi)}}var x=a+b;var bv=x-a;var y=b-bv;var q0=y;var q1=x;var _x,_bv,_av,_br,_ar;while(eptr<ne&&fptr<nf){if(ea<fa){a=ei;eptr+=1;if(eptr<ne){ei=e[eptr];ea=abs(ei)}}else{a=fi;fptr+=1;if(fptr<nf){fi=f[fptr];fa=abs(fi)}}b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x}while(eptr<ne){a=ei;b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x;eptr+=1;if(eptr<ne){ei=e[eptr]}}while(fptr<nf){a=fi;b=q0;x=a+b;bv=x-a;y=b-bv;if(y){g[count++]=y}_x=q1+x;_bv=_x-q1;_av=_x-_bv;_br=x-_bv;_ar=q1-_av;q0=_ar+_br;q1=_x;fptr+=1;if(fptr<nf){fi=f[fptr]}}if(q0){g[count++]=q0}if(q1){g[count++]=q1}if(!count){g[count++]=0}g.length=count;return g}},{}],35:[function(require,module,exports){"use strict";module.exports=twoProduct;var SPLITTER=+(Math.pow(2,27)+1);function twoProduct(a,b,result){var x=a*b;var c=SPLITTER*a;var abig=c-a;var ahi=c-abig;var alo=a-ahi;var d=SPLITTER*b;var bbig=d-b;var bhi=d-bbig;var blo=b-bhi;var err1=x-ahi*bhi;var err2=err1-alo*bhi;var err3=err2-ahi*blo;var y=alo*blo-err3;if(result){result[0]=y;result[1]=x;return result}return[y,x]}},{}],36:[function(require,module,exports){"use strict";var twoProduct=require("two-product");var robustSum=require("robust-sum");var robustScale=require("robust-scale");var robustSubtract=require("robust-subtract");var NUM_EXPAND=5;var EPSILON=1.1102230246251565e-16;var ERRBOUND3=(3+16*EPSILON)*EPSILON;var ERRBOUND4=(7+56*EPSILON)*EPSILON;function cofactor(m,c){var result=new Array(m.length-1);for(var i=1;i<m.length;++i){var r=result[i-1]=new Array(m.length-1);for(var j=0,k=0;j<m.length;++j){if(j===c){continue}r[k++]=m[i][j]}}return result}function matrix(n){var result=new Array(n);for(var i=0;i<n;++i){result[i]=new Array(n);for(var j=0;j<n;++j){result[i][j]=["m",j,"[",n-i-1,"]"].join("")}}return result}function sign(n){if(n&1){return"-"}return""}function generateSum(expr){if(expr.length===1){return expr[0]}else if(expr.length===2){return["sum(",expr[0],",",expr[1],")"].join("")}else{var m=expr.length>>1;return["sum(",generateSum(expr.slice(0,m)),",",generateSum(expr.slice(m)),")"].join("")}}function determinant(m){if(m.length===2){return[["sum(prod(",m[0][0],",",m[1][1],"),prod(-",m[0][1],",",m[1][0],"))"].join("")]}else{var expr=[];for(var i=0;i<m.length;++i){expr.push(["scale(",generateSum(determinant(cofactor(m,i))),",",sign(i),m[0][i],")"].join(""))}return expr}}function orientation(n){var pos=[];var neg=[];var m=matrix(n);var args=[];for(var i=0;i<n;++i){if((i&1)===0){pos.push.apply(pos,determinant(cofactor(m,i)))}else{neg.push.apply(neg,determinant(cofactor(m,i)))}args.push("m"+i)}var posExpr=generateSum(pos);var negExpr=generateSum(neg);var funcName="orientation"+n+"Exact";var code=["function ",funcName,"(",args.join(),"){var p=",posExpr,",n=",negExpr,",d=sub(p,n);return d[d.length-1];};return ",funcName].join("");var proc=new Function("sum","prod","scale","sub",code);return proc(robustSum,twoProduct,robustScale,robustSubtract)}var orientation3Exact=orientation(3);var orientation4Exact=orientation(4);var CACHED=[function orientation0(){return 0},function orientation1(){return 0},function orientation2(a,b){return b[0]-a[0]},function orientation3(a,b,c){var l=(a[1]-c[1])*(b[0]-c[0]);var r=(a[0]-c[0])*(b[1]-c[1]);var det=l-r;var s;if(l>0){if(r<=0){return det}else{s=l+r}}else if(l<0){if(r>=0){return det}else{s=-(l+r)}}else{return det}var tol=ERRBOUND3*s;if(det>=tol||det<=-tol){return det}return orientation3Exact(a,b,c)},function orientation4(a,b,c,d){var adx=a[0]-d[0];var bdx=b[0]-d[0];var cdx=c[0]-d[0];var ady=a[1]-d[1];var bdy=b[1]-d[1];var cdy=c[1]-d[1];var adz=a[2]-d[2];var bdz=b[2]-d[2];var cdz=c[2]-d[2];var bdxcdy=bdx*cdy;var cdxbdy=cdx*bdy;var cdxady=cdx*ady;var adxcdy=adx*cdy;var adxbdy=adx*bdy;var bdxady=bdx*ady;var det=adz*(bdxcdy-cdxbdy)+bdz*(cdxady-adxcdy)+cdz*(adxbdy-bdxady);var permanent=(Math.abs(bdxcdy)+Math.abs(cdxbdy))*Math.abs(adz)+(Math.abs(cdxady)+Math.abs(adxcdy))*Math.abs(bdz)+(Math.abs(adxbdy)+Math.abs(bdxady))*Math.abs(cdz);var tol=ERRBOUND4*permanent;if(det>tol||-det>tol){return det}return orientation4Exact(a,b,c,d)}];function slowOrient(args){var proc=CACHED[args.length];if(!proc){proc=CACHED[args.length]=orientation(args.length)}return proc.apply(undefined,args)}function generateOrientationProc(){while(CACHED.length<=NUM_EXPAND){CACHED.push(orientation(CACHED.length))}var args=[];var procArgs=["slow"];for(var i=0;i<=NUM_EXPAND;++i){args.push("a"+i);procArgs.push("o"+i)}var code=["function getOrientation(",args.join(),"){switch(arguments.length){case 0:case 1:return 0;"];for(var i=2;i<=NUM_EXPAND;++i){code.push("case ",i,":return o",i,"(",args.slice(0,i).join(),");")}code.push("}var s=new Array(arguments.length);for(var i=0;i<arguments.length;++i){s[i]=arguments[i]};return slow(s);}return getOrientation");procArgs.push(code.join(""));var proc=Function.apply(undefined,procArgs);module.exports=proc.apply(undefined,[slowOrient].concat(CACHED));for(var i=0;i<=NUM_EXPAND;++i){module.exports[i]=CACHED[i]}}generateOrientationProc()},{"robust-scale":32,"robust-subtract":33,"robust-sum":34,"two-product":35}],37:[function(require,module,exports){"use strict";
module.exports=incrementalConvexHull;var orient=require("robust-orientation");var compareCell=require("simplicial-complex").compareCells;function compareInt(a,b){return a-b}function Simplex(vertices,adjacent,boundary){this.vertices=vertices;this.adjacent=adjacent;this.boundary=boundary;this.lastVisited=-1}Simplex.prototype.flip=function(){var t=this.vertices[0];this.vertices[0]=this.vertices[1];this.vertices[1]=t;var u=this.adjacent[0];this.adjacent[0]=this.adjacent[1];this.adjacent[1]=u};function GlueFacet(vertices,cell,index){this.vertices=vertices;this.cell=cell;this.index=index}function compareGlue(a,b){return compareCell(a.vertices,b.vertices)}function bakeOrient(d){var code=["function orient(){var tuple=this.tuple;return test("];for(var i=0;i<=d;++i){if(i>0){code.push(",")}code.push("tuple[",i,"]")}code.push(")}return orient");var proc=new Function("test",code.join(""));var test=orient[d+1];if(!test){test=orient}return proc(test)}var BAKED=[];function Triangulation(dimension,vertices,simplices){this.dimension=dimension;this.vertices=vertices;this.simplices=simplices;this.interior=simplices.filter(function(c){return!c.boundary});this.tuple=new Array(dimension+1);for(var i=0;i<=dimension;++i){this.tuple[i]=this.vertices[i]}var o=BAKED[dimension];if(!o){o=BAKED[dimension]=bakeOrient(dimension)}this.orient=o}var proto=Triangulation.prototype;proto.handleBoundaryDegeneracy=function(cell,point){var d=this.dimension;var n=this.vertices.length-1;var tuple=this.tuple;var verts=this.vertices;var toVisit=[cell];cell.lastVisited=-n;while(toVisit.length>0){cell=toVisit.pop();var cellVerts=cell.vertices;var cellAdj=cell.adjacent;for(var i=0;i<=d;++i){var neighbor=cellAdj[i];if(!neighbor.boundary||neighbor.lastVisited<=-n){continue}var nv=neighbor.vertices;for(var j=0;j<=d;++j){var vv=nv[j];if(vv<0){tuple[j]=point}else{tuple[j]=verts[vv]}}var o=this.orient();if(o>0){return neighbor}neighbor.lastVisited=-n;if(o===0){toVisit.push(neighbor)}}}return null};proto.walk=function(point,random){var n=this.vertices.length-1;var d=this.dimension;var verts=this.vertices;var tuple=this.tuple;var initIndex=random?this.interior.length*Math.random()|0:this.interior.length-1;var cell=this.interior[initIndex];outerLoop:while(!cell.boundary){var cellVerts=cell.vertices;var cellAdj=cell.adjacent;for(var i=0;i<=d;++i){tuple[i]=verts[cellVerts[i]]}cell.lastVisited=n;for(var i=0;i<=d;++i){var neighbor=cellAdj[i];if(neighbor.lastVisited>=n){continue}var prev=tuple[i];tuple[i]=point;var o=this.orient();tuple[i]=prev;if(o<0){cell=neighbor;continue outerLoop}else{if(!neighbor.boundary){neighbor.lastVisited=n}else{neighbor.lastVisited=-n}}}return}return cell};proto.addPeaks=function(point,cell){var n=this.vertices.length-1;var d=this.dimension;var verts=this.vertices;var tuple=this.tuple;var interior=this.interior;var simplices=this.simplices;var tovisit=[cell];cell.lastVisited=n;cell.vertices[cell.vertices.indexOf(-1)]=n;cell.boundary=false;interior.push(cell);var glueFacets=[];while(tovisit.length>0){var cell=tovisit.pop();var cellVerts=cell.vertices;var cellAdj=cell.adjacent;var indexOfN=cellVerts.indexOf(n);if(indexOfN<0){continue}for(var i=0;i<=d;++i){if(i===indexOfN){continue}var neighbor=cellAdj[i];if(!neighbor.boundary||neighbor.lastVisited>=n){continue}var nv=neighbor.vertices;if(neighbor.lastVisited!==-n){var indexOfNeg1=0;for(var j=0;j<=d;++j){if(nv[j]<0){indexOfNeg1=j;tuple[j]=point}else{tuple[j]=verts[nv[j]]}}var o=this.orient();if(o>0){nv[indexOfNeg1]=n;neighbor.boundary=false;interior.push(neighbor);tovisit.push(neighbor);neighbor.lastVisited=n;continue}else{neighbor.lastVisited=-n}}var na=neighbor.adjacent;var vverts=cellVerts.slice();var vadj=cellAdj.slice();var ncell=new Simplex(vverts,vadj,true);simplices.push(ncell);var opposite=na.indexOf(cell);if(opposite<0){continue}na[opposite]=ncell;vadj[indexOfN]=neighbor;vverts[i]=-1;vadj[i]=cell;cellAdj[i]=ncell;ncell.flip();for(var j=0;j<=d;++j){var uu=vverts[j];if(uu<0||uu===n){continue}var nface=new Array(d-1);var nptr=0;for(var k=0;k<=d;++k){var vv=vverts[k];if(vv<0||k===j){continue}nface[nptr++]=vv}glueFacets.push(new GlueFacet(nface,ncell,j))}}}glueFacets.sort(compareGlue);for(var i=0;i+1<glueFacets.length;i+=2){var a=glueFacets[i];var b=glueFacets[i+1];var ai=a.index;var bi=b.index;if(ai<0||bi<0){continue}a.cell.adjacent[a.index]=b.cell;b.cell.adjacent[b.index]=a.cell}};proto.insert=function(point,random){var verts=this.vertices;verts.push(point);var cell=this.walk(point,random);if(!cell){return}var d=this.dimension;var tuple=this.tuple;for(var i=0;i<=d;++i){var vv=cell.vertices[i];if(vv<0){tuple[i]=point}else{tuple[i]=verts[vv]}}var o=this.orient(tuple);if(o<0){return}else if(o===0){cell=this.handleBoundaryDegeneracy(cell,point);if(!cell){return}}this.addPeaks(point,cell)};proto.boundary=function(){var d=this.dimension;var boundary=[];var cells=this.simplices;var nc=cells.length;for(var i=0;i<nc;++i){var c=cells[i];if(c.boundary){var bcell=new Array(d);var cv=c.vertices;var ptr=0;var parity=0;for(var j=0;j<=d;++j){if(cv[j]>=0){bcell[ptr++]=cv[j]}else{parity=j&1}}if(parity===(d&1)){var t=bcell[0];bcell[0]=bcell[1];bcell[1]=t}boundary.push(bcell)}}return boundary};function incrementalConvexHull(points,randomSearch){var n=points.length;if(n===0){throw new Error("Must have at least d+1 points")}var d=points[0].length;if(n<=d){throw new Error("Must input at least d+1 points")}var initialSimplex=points.slice(0,d+1);var o=orient.apply(void 0,initialSimplex);if(o===0){throw new Error("Input not in general position")}var initialCoords=new Array(d+1);for(var i=0;i<=d;++i){initialCoords[i]=i}if(o<0){initialCoords[0]=1;initialCoords[1]=0}var initialCell=new Simplex(initialCoords,new Array(d+1),false);var boundary=initialCell.adjacent;var list=new Array(d+2);for(var i=0;i<=d;++i){var verts=initialCoords.slice();for(var j=0;j<=d;++j){if(j===i){verts[j]=-1}}var t=verts[0];verts[0]=verts[1];verts[1]=t;var cell=new Simplex(verts,new Array(d+1),true);boundary[i]=cell;list[i]=cell}list[d+1]=initialCell;for(var i=0;i<=d;++i){var verts=boundary[i].vertices;var adj=boundary[i].adjacent;for(var j=0;j<=d;++j){var v=verts[j];if(v<0){adj[j]=initialCell;continue}for(var k=0;k<=d;++k){if(boundary[k].vertices.indexOf(v)<0){adj[j]=boundary[k]}}}}var triangles=new Triangulation(d,initialSimplex,list);var useRandom=!!randomSearch;for(var i=d+1;i<n;++i){triangles.insert(points[i],useRandom)}return triangles.boundary()}},{"robust-orientation":43,"simplicial-complex":46}],38:[function(require,module,exports){arguments[4][31][0].apply(exports,arguments)},{dup:31}],39:[function(require,module,exports){arguments[4][32][0].apply(exports,arguments)},{dup:32,"two-product":42,"two-sum":38}],40:[function(require,module,exports){arguments[4][33][0].apply(exports,arguments)},{dup:33}],41:[function(require,module,exports){arguments[4][34][0].apply(exports,arguments)},{dup:34}],42:[function(require,module,exports){arguments[4][35][0].apply(exports,arguments)},{dup:35}],43:[function(require,module,exports){arguments[4][36][0].apply(exports,arguments)},{dup:36,"robust-scale":39,"robust-subtract":40,"robust-sum":41,"two-product":42}],44:[function(require,module,exports){"use strict";"use restrict";var INT_BITS=32;exports.INT_BITS=INT_BITS;exports.INT_MAX=2147483647;exports.INT_MIN=-1<<INT_BITS-1;exports.sign=function(v){return(v>0)-(v<0)};exports.abs=function(v){var mask=v>>INT_BITS-1;return(v^mask)-mask};exports.min=function(x,y){return y^(x^y)&-(x<y)};exports.max=function(x,y){return x^(x^y)&-(x<y)};exports.isPow2=function(v){return!(v&v-1)&&!!v};exports.log2=function(v){var r,shift;r=(v>65535)<<4;v>>>=r;shift=(v>255)<<3;v>>>=shift;r|=shift;shift=(v>15)<<2;v>>>=shift;r|=shift;shift=(v>3)<<1;v>>>=shift;r|=shift;return r|v>>1};exports.log10=function(v){return v>=1e9?9:v>=1e8?8:v>=1e7?7:v>=1e6?6:v>=1e5?5:v>=1e4?4:v>=1e3?3:v>=100?2:v>=10?1:0};exports.popCount=function(v){v=v-(v>>>1&1431655765);v=(v&858993459)+(v>>>2&858993459);return(v+(v>>>4)&252645135)*16843009>>>24};function countTrailingZeros(v){var c=32;v&=-v;if(v)c--;if(v&65535)c-=16;if(v&16711935)c-=8;if(v&252645135)c-=4;if(v&858993459)c-=2;if(v&1431655765)c-=1;return c}exports.countTrailingZeros=countTrailingZeros;exports.nextPow2=function(v){v+=v===0;--v;v|=v>>>1;v|=v>>>2;v|=v>>>4;v|=v>>>8;v|=v>>>16;return v+1};exports.prevPow2=function(v){v|=v>>>1;v|=v>>>2;v|=v>>>4;v|=v>>>8;v|=v>>>16;return v-(v>>>1)};exports.parity=function(v){v^=v>>>16;v^=v>>>8;v^=v>>>4;v&=15;return 27030>>>v&1};var REVERSE_TABLE=new Array(256);(function(tab){for(var i=0;i<256;++i){var v=i,r=i,s=7;for(v>>>=1;v;v>>>=1){r<<=1;r|=v&1;--s}tab[i]=r<<s&255}})(REVERSE_TABLE);exports.reverse=function(v){return REVERSE_TABLE[v&255]<<24|REVERSE_TABLE[v>>>8&255]<<16|REVERSE_TABLE[v>>>16&255]<<8|REVERSE_TABLE[v>>>24&255]};exports.interleave2=function(x,y){x&=65535;x=(x|x<<8)&16711935;x=(x|x<<4)&252645135;x=(x|x<<2)&858993459;x=(x|x<<1)&1431655765;y&=65535;y=(y|y<<8)&16711935;y=(y|y<<4)&252645135;y=(y|y<<2)&858993459;y=(y|y<<1)&1431655765;return x|y<<1};exports.deinterleave2=function(v,n){v=v>>>n&1431655765;v=(v|v>>>1)&858993459;v=(v|v>>>2)&252645135;v=(v|v>>>4)&16711935;v=(v|v>>>16)&65535;return v<<16>>16};exports.interleave3=function(x,y,z){x&=1023;x=(x|x<<16)&4278190335;x=(x|x<<8)&251719695;x=(x|x<<4)&3272356035;x=(x|x<<2)&1227133513;y&=1023;y=(y|y<<16)&4278190335;y=(y|y<<8)&251719695;y=(y|y<<4)&3272356035;y=(y|y<<2)&1227133513;x|=y<<1;z&=1023;z=(z|z<<16)&4278190335;z=(z|z<<8)&251719695;z=(z|z<<4)&3272356035;z=(z|z<<2)&1227133513;return x|z<<2};exports.deinterleave3=function(v,n){v=v>>>n&1227133513;v=(v|v>>>2)&3272356035;v=(v|v>>>4)&251719695;v=(v|v>>>8)&4278190335;v=(v|v>>>16)&1023;return v<<22>>22};exports.nextCombination=function(v){var t=v|v-1;return t+1|(~t&-~t)-1>>>countTrailingZeros(v)+1}},{}],45:[function(require,module,exports){"use strict";"use restrict";module.exports=UnionFind;function UnionFind(count){this.roots=new Array(count);this.ranks=new Array(count);for(var i=0;i<count;++i){this.roots[i]=i;this.ranks[i]=0}}var proto=UnionFind.prototype;Object.defineProperty(proto,"length",{get:function(){return this.roots.length}});proto.makeSet=function(){var n=this.roots.length;this.roots.push(n);this.ranks.push(0);return n};proto.find=function(x){var x0=x;var roots=this.roots;while(roots[x]!==x){x=roots[x]}while(roots[x0]!==x){var y=roots[x0];roots[x0]=x;x0=y}return x};proto.link=function(x,y){var xr=this.find(x),yr=this.find(y);if(xr===yr){return}var ranks=this.ranks,roots=this.roots,xd=ranks[xr],yd=ranks[yr];if(xd<yd){roots[xr]=yr}else if(yd<xd){roots[yr]=xr}else{roots[yr]=xr;++ranks[xr]}}},{}],46:[function(require,module,exports){"use strict";"use restrict";var bits=require("bit-twiddle"),UnionFind=require("union-find");function dimension(cells){var d=0,max=Math.max;for(var i=0,il=cells.length;i<il;++i){d=max(d,cells[i].length)}return d-1}exports.dimension=dimension;function countVertices(cells){var vc=-1,max=Math.max;for(var i=0,il=cells.length;i<il;++i){var c=cells[i];for(var j=0,jl=c.length;j<jl;++j){vc=max(vc,c[j])}}return vc+1}exports.countVertices=countVertices;function cloneCells(cells){var ncells=new Array(cells.length);for(var i=0,il=cells.length;i<il;++i){ncells[i]=cells[i].slice(0)}return ncells}exports.cloneCells=cloneCells;function compareCells(a,b){var n=a.length,t=a.length-b.length,min=Math.min;if(t){return t}switch(n){case 0:return 0;case 1:return a[0]-b[0];case 2:var d=a[0]+a[1]-b[0]-b[1];if(d){return d}return min(a[0],a[1])-min(b[0],b[1]);case 3:var l1=a[0]+a[1],m1=b[0]+b[1];d=l1+a[2]-(m1+b[2]);if(d){return d}var l0=min(a[0],a[1]),m0=min(b[0],b[1]),d=min(l0,a[2])-min(m0,b[2]);if(d){return d}return min(l0+a[2],l1)-min(m0+b[2],m1);default:var as=a.slice(0);as.sort();var bs=b.slice(0);bs.sort();for(var i=0;i<n;++i){t=as[i]-bs[i];if(t){return t}}return 0}}exports.compareCells=compareCells;function compareZipped(a,b){return compareCells(a[0],b[0])}function normalize(cells,attr){if(attr){var len=cells.length;var zipped=new Array(len);for(var i=0;i<len;++i){zipped[i]=[cells[i],attr[i]]}zipped.sort(compareZipped);for(var i=0;i<len;++i){cells[i]=zipped[i][0];attr[i]=zipped[i][1]}return cells}else{cells.sort(compareCells);return cells}}exports.normalize=normalize;function unique(cells){if(cells.length===0){return[]}var ptr=1,len=cells.length;for(var i=1;i<len;++i){var a=cells[i];if(compareCells(a,cells[i-1])){if(i===ptr){ptr++;continue}cells[ptr++]=a}}cells.length=ptr;return cells}exports.unique=unique;function findCell(cells,c){var lo=0,hi=cells.length-1,r=-1;while(lo<=hi){var mid=lo+hi>>1,s=compareCells(cells[mid],c);if(s<=0){if(s===0){r=mid}lo=mid+1}else if(s>0){hi=mid-1}}return r}exports.findCell=findCell;function incidence(from_cells,to_cells){var index=new Array(from_cells.length);for(var i=0,il=index.length;i<il;++i){index[i]=[]}var b=[];for(var i=0,n=to_cells.length;i<n;++i){var c=to_cells[i];var cl=c.length;for(var k=1,kn=1<<cl;k<kn;++k){b.length=bits.popCount(k);var l=0;for(var j=0;j<cl;++j){if(k&1<<j){b[l++]=c[j]}}var idx=findCell(from_cells,b);if(idx<0){continue}while(true){index[idx++].push(i);if(idx>=from_cells.length||compareCells(from_cells[idx],b)!==0){break}}}}return index}exports.incidence=incidence;function dual(cells,vertex_count){if(!vertex_count){return incidence(unique(skeleton(cells,0)),cells,0)}var res=new Array(vertex_count);for(var i=0;i<vertex_count;++i){res[i]=[]}for(var i=0,len=cells.length;i<len;++i){var c=cells[i];for(var j=0,cl=c.length;j<cl;++j){res[c[j]].push(i)}}return res}exports.dual=dual;function explode(cells){var result=[];for(var i=0,il=cells.length;i<il;++i){var c=cells[i],cl=c.length|0;for(var j=1,jl=1<<cl;j<jl;++j){var b=[];for(var k=0;k<cl;++k){if(j>>>k&1){b.push(c[k])}}result.push(b)}}return normalize(result)}exports.explode=explode;function skeleton(cells,n){if(n<0){return[]}var result=[],k0=(1<<n+1)-1;for(var i=0;i<cells.length;++i){var c=cells[i];for(var k=k0;k<1<<c.length;k=bits.nextCombination(k)){var b=new Array(n+1),l=0;for(var j=0;j<c.length;++j){if(k&1<<j){b[l++]=c[j]}}result.push(b)}}return normalize(result)}exports.skeleton=skeleton;function boundary(cells){var res=[];for(var i=0,il=cells.length;i<il;++i){var c=cells[i];for(var j=0,cl=c.length;j<cl;++j){var b=new Array(c.length-1);for(var k=0,l=0;k<cl;++k){if(k!==j){b[l++]=c[k]}}res.push(b)}}return normalize(res)}exports.boundary=boundary;function connectedComponents_dense(cells,vertex_count){var labels=new UnionFind(vertex_count);for(var i=0;i<cells.length;++i){var c=cells[i];for(var j=0;j<c.length;++j){for(var k=j+1;k<c.length;++k){labels.link(c[j],c[k])}}}var components=[],component_labels=labels.ranks;for(var i=0;i<component_labels.length;++i){component_labels[i]=-1}for(var i=0;i<cells.length;++i){var l=labels.find(cells[i][0]);if(component_labels[l]<0){component_labels[l]=components.length;components.push([cells[i].slice(0)])}else{components[component_labels[l]].push(cells[i].slice(0))}}return components}function connectedComponents_sparse(cells){var vertices=unique(normalize(skeleton(cells,0))),labels=new UnionFind(vertices.length);for(var i=0;i<cells.length;++i){var c=cells[i];for(var j=0;j<c.length;++j){var vj=findCell(vertices,[c[j]]);for(var k=j+1;k<c.length;++k){labels.link(vj,findCell(vertices,[c[k]]))}}}var components=[],component_labels=labels.ranks;for(var i=0;i<component_labels.length;++i){component_labels[i]=-1}for(var i=0;i<cells.length;++i){var l=labels.find(findCell(vertices,[cells[i][0]]));if(component_labels[l]<0){component_labels[l]=components.length;components.push([cells[i].slice(0)])}else{components[component_labels[l]].push(cells[i].slice(0))}}return components}function connectedComponents(cells,vertex_count){if(vertex_count){return connectedComponents_dense(cells,vertex_count)}return connectedComponents_sparse(cells)}exports.connectedComponents=connectedComponents},{"bit-twiddle":44,"union-find":45}],47:[function(require,module,exports){"use strict";module.exports=monotoneConvexHull2D;var orient=require("robust-orientation")[3];function monotoneConvexHull2D(points){var n=points.length;if(n<3){var result=new Array(n);for(var i=0;i<n;++i){result[i]=i}if(n===2&&points[0][0]===points[1][0]&&points[0][1]===points[1][1]){return[0]}return result}var sorted=new Array(n);for(var i=0;i<n;++i){sorted[i]=i}sorted.sort(function(a,b){var d=points[a][0]-points[b][0];if(d){return d}return points[a][1]-points[b][1]});var lower=[sorted[0],sorted[1]];var upper=[sorted[0],sorted[1]];for(var i=2;i<n;++i){var idx=sorted[i];var p=points[idx];var m=lower.length;while(m>1&&orient(points[lower[m-2]],points[lower[m-1]],p)<=0){m-=1;lower.pop()}lower.push(idx);m=upper.length;while(m>1&&orient(points[upper[m-2]],points[upper[m-1]],p)>=0){m-=1;upper.pop()}upper.push(idx)}var result=new Array(upper.length+lower.length-2);var ptr=0;for(var i=0,nl=lower.length;i<nl;++i){result[ptr++]=lower[i]}for(var j=upper.length-2;j>0;--j){result[ptr++]=upper[j]}return result}},{"robust-orientation":53}],48:[function(require,module,exports){arguments[4][31][0].apply(exports,arguments)},{dup:31}],49:[function(require,module,exports){arguments[4][32][0].apply(exports,arguments)},{dup:32,"two-product":52,"two-sum":48}],50:[function(require,module,exports){arguments[4][33][0].apply(exports,arguments)},{dup:33}],51:[function(require,module,exports){arguments[4][34][0].apply(exports,arguments)},{dup:34}],52:[function(require,module,exports){arguments[4][35][0].apply(exports,arguments)},{dup:35}],53:[function(require,module,exports){arguments[4][36][0].apply(exports,arguments)},{dup:36,"robust-scale":49,"robust-subtract":50,"robust-sum":51,"two-product":52}],54:[function(require,module,exports){arguments[4][22][0].apply(exports,arguments)},{dup:22}],55:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,outField,done){for(var i=0;i<polyFC.features.length;i++){var poly=polyFC.features[i];if(!poly.properties)poly.properties={};var values=0;for(var j=0;j<ptFC.features.length;j++){var pt=ptFC.features[j];if(inside(pt,poly)){values++}}poly.properties[outField]=values}return polyFC}},{"turf-inside":75}],56:[function(require,module,exports){var point=require("turf-point");module.exports=function(point1,distance,bearing,units){var coordinates1=point1.geometry.coordinates;var longitude1=toRad(coordinates1[0]);var latitude1=toRad(coordinates1[1]);var bearing_rad=toRad(bearing);var R=0;switch(units){case"miles":R=3960;break;case"kilometers":R=6373;break;case"degrees":R=57.2957795;break;case"radians":R=1;break}var latitude2=Math.asin(Math.sin(latitude1)*Math.cos(distance/R)+Math.cos(latitude1)*Math.sin(distance/R)*Math.cos(bearing_rad));var longitude2=longitude1+Math.atan2(Math.sin(bearing_rad)*Math.sin(distance/R)*Math.cos(latitude1),Math.cos(distance/R)-Math.sin(latitude1)*Math.sin(latitude2));return point([toDeg(longitude2),toDeg(latitude2)])};function toRad(degree){return degree*Math.PI/180}function toDeg(rad){return rad*180/Math.PI}},{"turf-point":101}],57:[function(require,module,exports){var ss=require("simple-statistics");var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField,done){polyFC.features.forEach(function(poly){if(!poly.properties){poly.properties={}}var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=ss.standard_deviation(values)});return polyFC}},{"simple-statistics":58,"turf-inside":75}],58:[function(require,module,exports){(function(){var ss={};if(typeof module!=="undefined"){module.exports=ss}else{this.ss=ss}function linear_regression(){var linreg={},data=[];linreg.data=function(x){if(!arguments.length)return data;data=x.slice();return linreg};linreg.mb=function(){var m,b;var data_length=data.length;if(data_length===1){m=0;b=data[0][1]}else{var sum_x=0,sum_y=0,sum_xx=0,sum_xy=0;var point,x,y;for(var i=0;i<data_length;i++){point=data[i];x=point[0];y=point[1];sum_x+=x;sum_y+=y;sum_xx+=x*x;sum_xy+=x*y}m=(data_length*sum_xy-sum_x*sum_y)/(data_length*sum_xx-sum_x*sum_x);b=sum_y/data_length-m*sum_x/data_length}return{m:m,b:b}};linreg.m=function(){return linreg.mb().m};linreg.b=function(){return linreg.mb().b};linreg.line=function(){var mb=linreg.mb(),m=mb.m,b=mb.b;return function(x){return b+m*x}};return linreg}function r_squared(data,f){if(data.length<2)return 1;var sum=0,average;for(var i=0;i<data.length;i++){sum+=data[i][1]}average=sum/data.length;var sum_of_squares=0;for(var j=0;j<data.length;j++){sum_of_squares+=Math.pow(average-data[j][1],2)}var err=0;for(var k=0;k<data.length;k++){err+=Math.pow(data[k][1]-f(data[k][0]),2)}return 1-err/sum_of_squares}function bayesian(){var bayes_model={},total_count=0,data={};bayes_model.train=function(item,category){if(!data[category])data[category]={};for(var k in item){var v=item[k];if(data[category][k]===undefined)data[category][k]={};if(data[category][k][v]===undefined)data[category][k][v]=0;data[category][k][item[k]]++}total_count++};bayes_model.score=function(item){var odds={},category;for(var k in item){var v=item[k];for(category in data){if(odds[category]===undefined)odds[category]={};if(data[category][k]){odds[category][k+"_"+v]=(data[category][k][v]||0)/total_count}else{odds[category][k+"_"+v]=0}}}var odds_sums={};for(category in odds){for(var combination in odds[category]){if(odds_sums[category]===undefined)odds_sums[category]=0;odds_sums[category]+=odds[category][combination]}}return odds_sums};return bayes_model}function sum(x){var value=0;for(var i=0;i<x.length;i++){value+=x[i]}return value}function mean(x){if(x.length===0)return null;return sum(x)/x.length}function geometric_mean(x){if(x.length===0)return null;var value=1;for(var i=0;i<x.length;i++){if(x[i]<=0)return null;value*=x[i]}return Math.pow(value,1/x.length)}function harmonic_mean(x){if(x.length===0)return null;var reciprocal_sum=0;for(var i=0;i<x.length;i++){if(x[i]<=0)return null;reciprocal_sum+=1/x[i]}return x.length/reciprocal_sum}function root_mean_square(x){if(x.length===0)return null;var sum_of_squares=0;for(var i=0;i<x.length;i++){sum_of_squares+=Math.pow(x[i],2)}return Math.sqrt(sum_of_squares/x.length)}function min(x){var value;for(var i=0;i<x.length;i++){if(x[i]<value||value===undefined)value=x[i]}return value}function max(x){var value;for(var i=0;i<x.length;i++){if(x[i]>value||value===undefined)value=x[i]}return value}function variance(x){if(x.length===0)return null;var mean_value=mean(x),deviations=[];for(var i=0;i<x.length;i++){deviations.push(Math.pow(x[i]-mean_value,2))}return mean(deviations)}function standard_deviation(x){if(x.length===0)return null;return Math.sqrt(variance(x))}function sum_nth_power_deviations(x,n){var mean_value=mean(x),sum=0;for(var i=0;i<x.length;i++){sum+=Math.pow(x[i]-mean_value,n)}return sum}function sample_variance(x){if(x.length<=1)return null;var sum_squared_deviations_value=sum_nth_power_deviations(x,2);return sum_squared_deviations_value/(x.length-1)}function sample_standard_deviation(x){if(x.length<=1)return null;return Math.sqrt(sample_variance(x))}function sample_covariance(x,y){if(x.length<=1||x.length!=y.length){return null}var xmean=mean(x),ymean=mean(y),sum=0;for(var i=0;i<x.length;i++){sum+=(x[i]-xmean)*(y[i]-ymean)}return sum/(x.length-1)}function sample_correlation(x,y){var cov=sample_covariance(x,y),xstd=sample_standard_deviation(x),ystd=sample_standard_deviation(y);if(cov===null||xstd===null||ystd===null){return null}return cov/xstd/ystd}function median(x){if(x.length===0)return null;var sorted=x.slice().sort(function(a,b){return a-b});if(sorted.length%2===1){return sorted[(sorted.length-1)/2]}else{var a=sorted[sorted.length/2-1];var b=sorted[sorted.length/2];return(a+b)/2}}function mode(x){if(x.length===0)return null;else if(x.length===1)return x[0];var sorted=x.slice().sort(function(a,b){return a-b});var last=sorted[0],value,max_seen=0,seen_this=1;for(var i=1;i<sorted.length+1;i++){if(sorted[i]!==last){if(seen_this>max_seen){max_seen=seen_this;value=last}seen_this=1;last=sorted[i]}else{seen_this++}}return value}function t_test(sample,x){var sample_mean=mean(sample);var sd=standard_deviation(sample);var rootN=Math.sqrt(sample.length);return(sample_mean-x)/(sd/rootN)}function t_test_two_sample(sample_x,sample_y,difference){var n=sample_x.length,m=sample_y.length;if(!n||!m)return null;if(!difference)difference=0;var meanX=mean(sample_x),meanY=mean(sample_y);var weightedVariance=((n-1)*sample_variance(sample_x)+(m-1)*sample_variance(sample_y))/(n+m-2);return(meanX-meanY-difference)/Math.sqrt(weightedVariance*(1/n+1/m))}function chunk(sample,chunkSize){var output=[];if(chunkSize<=0){return null}for(var start=0;start<sample.length;start+=chunkSize){output.push(sample.slice(start,start+chunkSize))}return output}function shuffle_in_place(sample,randomSource){randomSource=randomSource||Math.random;var length=sample.length;var temporary;var index;while(length>0){index=Math.floor(randomSource()*length--);temporary=sample[length];sample[length]=sample[index];sample[index]=temporary}return sample}function shuffle(sample,randomSource){sample=sample.slice();return shuffle_in_place(sample.slice(),randomSource)}function sample(array,n,randomSource){var shuffled=shuffle(array,randomSource);return shuffled.slice(0,n)}function quantile(sample,p){if(sample.length===0)return null;var sorted=sample.slice().sort(function(a,b){return a-b});if(p.length){var results=[];for(var i=0;i<p.length;i++){results[i]=quantile_sorted(sorted,p[i])}return results}else{return quantile_sorted(sorted,p)}}function quantile_sorted(sample,p){var idx=sample.length*p;if(p<0||p>1){return null}else if(p===1){return sample[sample.length-1]}else if(p===0){return sample[0]}else if(idx%1!==0){return sample[Math.ceil(idx)-1]}else if(sample.length%2===0){return(sample[idx-1]+sample[idx])/2}else{return sample[idx]}}function iqr(sample){if(sample.length===0)return null;return quantile(sample,.75)-quantile(sample,.25)}function mad(x){if(!x||x.length===0)return null;var median_value=median(x),median_absolute_deviations=[];for(var i=0;i<x.length;i++){median_absolute_deviations.push(Math.abs(x[i]-median_value))}return median(median_absolute_deviations)}function jenksMatrices(data,n_classes){var lower_class_limits=[],variance_combinations=[],i,j,variance=0;for(i=0;i<data.length+1;i++){var tmp1=[],tmp2=[];for(j=0;j<n_classes+1;j++){tmp1.push(0);tmp2.push(0)}lower_class_limits.push(tmp1);variance_combinations.push(tmp2)}for(i=1;i<n_classes+1;i++){lower_class_limits[1][i]=1;variance_combinations[1][i]=0;for(j=2;j<data.length+1;j++){variance_combinations[j][i]=Infinity}}for(var l=2;l<data.length+1;l++){var sum=0,sum_squares=0,w=0,i4=0;for(var m=1;m<l+1;m++){var lower_class_limit=l-m+1,val=data[lower_class_limit-1];w++;sum+=val;sum_squares+=val*val;variance=sum_squares-sum*sum/w;i4=lower_class_limit-1;if(i4!==0){for(j=2;j<n_classes+1;j++){if(variance_combinations[l][j]>=variance+variance_combinations[i4][j-1]){lower_class_limits[l][j]=lower_class_limit;variance_combinations[l][j]=variance+variance_combinations[i4][j-1]}}}}lower_class_limits[l][1]=1;variance_combinations[l][1]=variance}return{lower_class_limits:lower_class_limits,variance_combinations:variance_combinations}}function jenksBreaks(data,lower_class_limits,n_classes){var k=data.length,kclass=[],countNum=n_classes;kclass[n_classes]=data[data.length-1];while(countNum>0){kclass[countNum-1]=data[lower_class_limits[k][countNum]-1];k=lower_class_limits[k][countNum]-1;countNum--}return kclass}function jenks(data,n_classes){if(n_classes>data.length)return null;data=data.slice().sort(function(a,b){return a-b});var matrices=jenksMatrices(data,n_classes),lower_class_limits=matrices.lower_class_limits;return jenksBreaks(data,lower_class_limits,n_classes)}function sample_skewness(x){if(x.length<3)return null;var n=x.length,cubed_s=Math.pow(sample_standard_deviation(x),3),sum_cubed_deviations=sum_nth_power_deviations(x,3);return n*sum_cubed_deviations/((n-1)*(n-2)*cubed_s)}var standard_normal_table=[.5,.504,.508,.512,.516,.5199,.5239,.5279,.5319,.5359,.5398,.5438,.5478,.5517,.5557,.5596,.5636,.5675,.5714,.5753,.5793,.5832,.5871,.591,.5948,.5987,.6026,.6064,.6103,.6141,.6179,.6217,.6255,.6293,.6331,.6368,.6406,.6443,.648,.6517,.6554,.6591,.6628,.6664,.67,.6736,.6772,.6808,.6844,.6879,.6915,.695,.6985,.7019,.7054,.7088,.7123,.7157,.719,.7224,.7257,.7291,.7324,.7357,.7389,.7422,.7454,.7486,.7517,.7549,.758,.7611,.7642,.7673,.7704,.7734,.7764,.7794,.7823,.7852,.7881,.791,.7939,.7967,.7995,.8023,.8051,.8078,.8106,.8133,.8159,.8186,.8212,.8238,.8264,.8289,.8315,.834,.8365,.8389,.8413,.8438,.8461,.8485,.8508,.8531,.8554,.8577,.8599,.8621,.8643,.8665,.8686,.8708,.8729,.8749,.877,.879,.881,.883,.8849,.8869,.8888,.8907,.8925,.8944,.8962,.898,.8997,.9015,.9032,.9049,.9066,.9082,.9099,.9115,.9131,.9147,.9162,.9177,.9192,.9207,.9222,.9236,.9251,.9265,.9279,.9292,.9306,.9319,.9332,.9345,.9357,.937,.9382,.9394,.9406,.9418,.9429,.9441,.9452,.9463,.9474,.9484,.9495,.9505,.9515,.9525,.9535,.9545,.9554,.9564,.9573,.9582,.9591,.9599,.9608,.9616,.9625,.9633,.9641,.9649,.9656,.9664,.9671,.9678,.9686,.9693,.9699,.9706,.9713,.9719,.9726,.9732,.9738,.9744,.975,.9756,.9761,.9767,.9772,.9778,.9783,.9788,.9793,.9798,.9803,.9808,.9812,.9817,.9821,.9826,.983,.9834,.9838,.9842,.9846,.985,.9854,.9857,.9861,.9864,.9868,.9871,.9875,.9878,.9881,.9884,.9887,.989,.9893,.9896,.9898,.9901,.9904,.9906,.9909,.9911,.9913,.9916,.9918,.992,.9922,.9925,.9927,.9929,.9931,.9932,.9934,.9936,.9938,.994,.9941,.9943,.9945,.9946,.9948,.9949,.9951,.9952,.9953,.9955,.9956,.9957,.9959,.996,.9961,.9962,.9963,.9964,.9965,.9966,.9967,.9968,.9969,.997,.9971,.9972,.9973,.9974,.9974,.9975,.9976,.9977,.9977,.9978,.9979,.9979,.998,.9981,.9981,.9982,.9982,.9983,.9984,.9984,.9985,.9985,.9986,.9986,.9987,.9987,.9987,.9988,.9988,.9989,.9989,.9989,.999,.999];function error_function(x){var t=1/(1+.5*Math.abs(x));var tau=t*Math.exp(-Math.pow(x,2)-1.26551223+1.00002368*t+.37409196*Math.pow(t,2)+.09678418*Math.pow(t,3)-.18628806*Math.pow(t,4)+.27886807*Math.pow(t,5)-1.13520398*Math.pow(t,6)+1.48851587*Math.pow(t,7)-.82215223*Math.pow(t,8)+.17087277*Math.pow(t,9));if(x>=0){return 1-tau}else{return tau-1}}function cumulative_std_normal_probability(z){var absZ=Math.abs(z),index=Math.min(Math.round(absZ*100),standard_normal_table.length-1);if(z>=0){return standard_normal_table[index]}else{return+(1-standard_normal_table[index]).toFixed(4)}}function z_score(x,mean,standard_deviation){return(x-mean)/standard_deviation}var epsilon=1e-4;function factorial(n){if(n<0){return null}var accumulator=1;for(var i=2;i<=n;i++){accumulator*=i}return accumulator}function bernoulli_distribution(p){if(p<0||p>1){return null}return binomial_distribution(1,p)}function binomial_distribution(trials,probability){if(probability<0||probability>1||trials<=0||trials%1!==0){return 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angle=2*Math.PI/6*i;cosines.push(Math.cos(angle));sines.push(Math.sin(angle))}module.exports=function hexgrid(bbox,cell,units){var xFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[2],bbox[1]]),units);var cellWidth=xFraction*(bbox[2]-bbox[0]);var yFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[0],bbox[3]]),units);var cellHeight=yFraction*(bbox[3]-bbox[1]);var radius=cellWidth/2;var hex_width=radius*2;var hex_height=Math.sqrt(3)/2*hex_width;var box_width=bbox[2]-bbox[0];var box_height=bbox[3]-bbox[1];var x_interval=3/4*hex_width;var y_interval=hex_height;var x_span=box_width/(hex_width-radius/2);var x_count=Math.ceil(x_span);if(Math.round(x_span)===x_count){x_count++}var x_adjust=(x_count*x_interval-radius/2-box_width)/2-radius/2;var y_count=Math.ceil(box_height/hex_height);var y_adjust=(box_height-y_count*hex_height)/2;var hasOffsetY=y_count*hex_height-box_height>hex_height/2;if(hasOffsetY){y_adjust-=hex_height/4}var fc=featurecollection([]);for(var 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c=b.right;b.right=c.left;null!=c.left&&(c.left.parent=b);c.parent=b.parent;null==b.parent?a.d=c:b.parent.left==b?b.parent.left=c:b.parent.right=c;c.left=b;b.parent=c}}function J(a,b){if(null!=b){var c=b.left;b.left=c.right;null!=c.right&&(c.right.parent=b);c.parent=b.parent;null==b.parent?a.d=c:b.parent.right==b?b.parent.right=c:b.parent.left=c;c.right=b;b.parent=c}}function K(a){if(null===a)return null;if(null!==a.right)for(var b=a.right;null!==b.left;)b=b.left;else for(b=a.parent;null!==b&&a===b.right;)a=b,b=b.parent;return b}H.prototype.size=function(){return this.n};H.prototype.size=H.prototype.size;function L(a){this.a=[];a instanceof m&&this.e(a)}g(L,B);f("javascript.util.TreeSet",L);L.prototype.a=null;L.prototype.contains=function(a){for(var b=0,c=this.a.length;b<c;b++)if(0===this.a[b].compareTo(a))return!0;return!1};L.prototype.contains=L.prototype.contains;L.prototype.add=function(a){if(this.contains(a))return!1;for(var b=0,c=this.a.length;b<c;b++)if(1===this.a[b].compareTo(a))return this.a.splice(b,0,a),!0;this.a.push(a);return!0};L.prototype.add=L.prototype.add;L.prototype.e=function(a){for(a=a.f();a.c();)this.add(a.next());return!0};L.prototype.addAll=L.prototype.e;L.prototype.remove=function(){throw new r};L.prototype.remove=L.prototype.remove;L.prototype.size=function(){return this.a.length};L.prototype.size=L.prototype.size;L.prototype.g=function(){return 0===this.a.length};L.prototype.isEmpty=L.prototype.g;L.prototype.h=function(){for(var a=[],b=0,c=this.a.length;b<c;b++)a.push(this.a[b]);return a};L.prototype.toArray=L.prototype.h;L.prototype.f=function(){return new N(this)};L.prototype.iterator=L.prototype.f;function N(a){this.l=a}f("$jscomp.scope.Iterator_$2",N);N.prototype.l=null;N.prototype.b=0;N.prototype.next=function(){if(this.b===this.l.size())throw new q;return this.l.a[this.b++]};N.prototype.next=N.prototype.next;N.prototype.c=function(){return this.b<this.l.size()?!0:!1};N.prototype.hasNext=N.prototype.c;N.prototype.remove=function(){throw new r};N.prototype.remove=N.prototype.remove;"undefined"!==typeof global&&(global.javascript={},global.javascript.util={},global.javascript.util.ArrayList=s,global.javascript.util.Arrays=v,global.javascript.util.Collection=m,global.javascript.util.EmptyStackException=h,global.javascript.util.HashMap=w,global.javascript.util.HashSet=y,global.javascript.util.IndexOutOfBoundsException=k,global.javascript.util.Iterator=l,global.javascript.util.List=n,global.javascript.util.Map=p,global.javascript.util.NoSuchElementException=q,global.javascript.util.OperationNotSupported=r,global.javascript.util.Set=x,global.javascript.util.SortedMap=A,global.javascript.util.SortedSet=B,global.javascript.util.Stack=C,global.javascript.util.TreeMap=H,global.javascript.util.TreeSet=L)}).call(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],80:[function(require,module,exports){arguments[4][19][0].apply(exports,arguments)},{"./dist/javascript.util-node.min.js":79,dup:19}],81:[function(require,module,exports){module.exports=Conrec;var EPSILON=1e-10;function pointsEqual(a,b){var x=a.x-b.x,y=a.y-b.y;return x*x+y*y<EPSILON}function reverseList(list){var pp=list.head;while(pp){var temp=pp.next;pp.next=pp.prev;pp.prev=temp;pp=temp}var temp=list.head;list.head=list.tail;list.tail=temp}function ContourBuilder(level){this.level=level;this.s=null;this.count=0}ContourBuilder.prototype.remove_seq=function(list){if(list.prev){list.prev.next=list.next}else{this.s=list.next}if(list.next){list.next.prev=list.prev}--this.count};ContourBuilder.prototype.addSegment=function(a,b){var ss=this.s;var ma=null;var mb=null;var prependA=false;var prependB=false;while(ss){if(ma==null){if(pointsEqual(a,ss.head.p)){ma=ss;prependA=true}else if(pointsEqual(a,ss.tail.p)){ma=ss}}if(mb==null){if(pointsEqual(b,ss.head.p)){mb=ss;prependB=true}else if(pointsEqual(b,ss.tail.p)){mb=ss}}if(mb!=null&&ma!=null){break}else{ss=ss.next}}var c=(ma!=null?1:0)|(mb!=null?2:0);switch(c){case 0:var aa={p:a,prev:null};var bb={p:b,next:null};aa.next=bb;bb.prev=aa;ma={head:aa,tail:bb,next:this.s,prev:null,closed:false};if(this.s){this.s.prev=ma}this.s=ma;++this.count;break;case 1:var pp={p:b};if(prependA){pp.next=ma.head;pp.prev=null;ma.head.prev=pp;ma.head=pp}else{pp.next=null;pp.prev=ma.tail;ma.tail.next=pp;ma.tail=pp}break;case 2:var pp={p:a};if(prependB){pp.next=mb.head;pp.prev=null;mb.head.prev=pp;mb.head=pp}else{pp.next=null;pp.prev=mb.tail;mb.tail.next=pp;mb.tail=pp}break;case 3:if(ma===mb){var pp={p:ma.tail.p,next:ma.head,prev:null};ma.head.prev=pp;ma.head=pp;ma.closed=true;break}switch((prependA?1:0)|(prependB?2:0)){case 0:reverseList(ma);case 1:mb.tail.next=ma.head;ma.head.prev=mb.tail;mb.tail=ma.tail;this.remove_seq(ma);break;case 3:reverseList(ma);case 2:ma.tail.next=mb.head;mb.head.prev=ma.tail;ma.tail=mb.tail;this.remove_seq(mb);break}}};function Conrec(drawContour){if(!drawContour){var c=this;c.contours={};this.drawContour=function(startX,startY,endX,endY,contourLevel,k){var cb=c.contours[k];if(!cb){cb=c.contours[k]=new ContourBuilder(contourLevel)}cb.addSegment({x:startX,y:startY},{x:endX,y:endY})};this.contourList=function(){var l=[];var a=c.contours;for(var k in a){var s=a[k].s;var level=a[k].level;while(s){var h=s.head;var l2=[];l2.level=level;l2.k=k;while(h&&h.p){l2.push(h.p);h=h.next}l.push(l2);s=s.next}}l.sort(function(a,b){return a.k-b.k});return l}}else{this.drawContour=drawContour}this.h=new Array(5);this.sh=new Array(5);this.xh=new Array(5);this.yh=new Array(5)}Conrec.prototype.contour=function(d,ilb,iub,jlb,jub,x,y,nc,z){var h=this.h,sh=this.sh,xh=this.xh,yh=this.yh;var drawContour=this.drawContour;this.contours={};var xsect=function(p1,p2){return(h[p2]*xh[p1]-h[p1]*xh[p2])/(h[p2]-h[p1])};var ysect=function(p1,p2){return(h[p2]*yh[p1]-h[p1]*yh[p2])/(h[p2]-h[p1])};var m1;var m2;var m3;var case_value;var dmin;var dmax;var x1=0;var x2=0;var y1=0;var y2=0;var im=[0,1,1,0];var jm=[0,0,1,1];var castab=[[[0,0,8],[0,2,5],[7,6,9]],[[0,3,4],[1,3,1],[4,3,0]],[[9,6,7],[5,2,0],[8,0,0]]];for(var j=jub-1;j>=jlb;j--){for(var i=ilb;i<=iub-1;i++){var temp1,temp2;temp1=Math.min(d[i][j],d[i][j+1]);temp2=Math.min(d[i+1][j],d[i+1][j+1]);dmin=Math.min(temp1,temp2);temp1=Math.max(d[i][j],d[i][j+1]);temp2=Math.max(d[i+1][j],d[i+1][j+1]);dmax=Math.max(temp1,temp2);if(dmax>=z[0]&&dmin<=z[nc-1]){for(var k=0;k<nc;k++){if(z[k]>=dmin&&z[k]<=dmax){for(var m=4;m>=0;m--){if(m>0){h[m]=d[i+im[m-1]][j+jm[m-1]]-z[k];xh[m]=x[i+im[m-1]];yh[m]=y[j+jm[m-1]]}else{h[0]=.25*(h[1]+h[2]+h[3]+h[4]);xh[0]=.5*(x[i]+x[i+1]);yh[0]=.5*(y[j]+y[j+1])}if(h[m]>EPSILON){sh[m]=1}else if(h[m]<-EPSILON){sh[m]=-1}else sh[m]=0}for(m=1;m<=4;m++){m1=m;m2=0;if(m!=4){m3=m+1}else{m3=1}case_value=castab[sh[m1]+1][sh[m2]+1][sh[m3]+1];if(case_value!=0){switch(case_value){case 1:x1=xh[m1];y1=yh[m1];x2=xh[m2];y2=yh[m2];break;case 2:x1=xh[m2];y1=yh[m2];x2=xh[m3];y2=yh[m3];break;case 3:x1=xh[m3];y1=yh[m3];x2=xh[m1];y2=yh[m1];break;case 4:x1=xh[m1];y1=yh[m1];x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 5:x1=xh[m2];y1=yh[m2];x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 6:x1=xh[m3];y1=yh[m3];x2=xsect(m1,m2);y2=ysect(m1,m2);break;case 7:x1=xsect(m1,m2);y1=ysect(m1,m2);x2=xsect(m2,m3);y2=ysect(m2,m3);break;case 8:x1=xsect(m2,m3);y1=ysect(m2,m3);x2=xsect(m3,m1);y2=ysect(m3,m1);break;case 9:x1=xsect(m3,m1);y1=ysect(m3,m1);x2=xsect(m1,m2);y2=ysect(m1,m2);break;default:break}drawContour(x1,y1,x2,y2,z[k],k)}}}}}}}}},{}],82:[function(require,module,exports){var tin=require("turf-tin");var inside=require("turf-inside");var grid=require("turf-grid");var extent=require("turf-extent");var planepoint=require("turf-planepoint");var featurecollection=require("turf-featurecollection");var linestring=require("turf-linestring");var square=require("turf-square");var Conrec=require("./conrec");module.exports=function(points,z,resolution,breaks,done){var tinResult=tin(points,z);var extentBBox=extent(points);var squareBBox=square(extentBBox);var gridResult=grid(squareBBox,resolution);var data=[];for(var i=0;i<gridResult.features.length;i++){var pt=gridResult.features[i];for(var j=0;j<tinResult.features.length;j++){var triangle=tinResult.features[j];if(inside(pt,triangle)){pt.properties={};pt.properties[z]=planepoint(pt,triangle)}}}var depth=Math.sqrt(gridResult.features.length);for(var x=0;x<depth;x++){var xGroup=gridResult.features.slice(x*depth,(x+1)*depth);var xFlat=[];xGroup.forEach(function(verticalPoint){if(verticalPoint.properties){xFlat.push(verticalPoint.properties[z])}else{xFlat.push(0)}});data.push(xFlat)}var interval=(squareBBox[2]-squareBBox[0])/depth;var xCoordinates=[];var yCoordinates=[];for(var x=0;x<depth;x++){xCoordinates.push(x*interval+squareBBox[0]);yCoordinates.push(x*interval+squareBBox[1])}var c=new Conrec;c.contour(data,0,resolution,0,resolution,xCoordinates,yCoordinates,breaks.length,breaks);var contourList=c.contourList();var fc=featurecollection([]);contourList.forEach(function(c){if(c.length>2){var polyCoordinates=[];c.forEach(function(coord){polyCoordinates.push([coord.x,coord.y])});var poly=linestring(polyCoordinates);poly.properties={};poly.properties[z]=c.level;fc.features.push(poly)}});return fc}},{"./conrec":81,"turf-extent":69,"turf-featurecollection":71,"turf-grid":83,"turf-inside":75,"turf-linestring":89,"turf-planepoint":97,"turf-square":114,"turf-tin":117}],83:[function(require,module,exports){var point=require("turf-point");module.exports=function(extents,depth){var xmin=extents[0];var ymin=extents[1];var xmax=extents[2];var ymax=extents[3];var interval=(xmax-xmin)/depth;var coords=[];var fc={type:"FeatureCollection",features:[]};for(var x=0;x<=depth;x++){for(var y=0;y<=depth;y++){fc.features.push(point([x*interval+xmin,y*interval+ymin]))}}return fc}},{"turf-point":101}],84:[function(require,module,exports){var ss=require("simple-statistics");module.exports=function(fc,field,num){var vals=[];var breaks=[];fc.features.forEach(function(feature){if(feature.properties[field]!==undefined){vals.push(feature.properties[field])}});breaks=ss.jenks(vals,num);return breaks}},{"simple-statistics":85}],85:[function(require,module,exports){arguments[4][58][0].apply(exports,arguments)},{dup:58}],86:[function(require,module,exports){var polygon=require("turf-polygon");var point=require("turf-point");var fc=require("turf-featurecollection");module.exports=function(polyIn){var poly;var results={intersections:fc([]),fixed:null};if(polyIn.type==="Feature"){poly=polyIn.geometry}else{poly=polyIn}var intersectionHash={};poly.coordinates.forEach(function(ring1){poly.coordinates.forEach(function(ring2){for(var i=0;i<ring1.length-1;i++){for(var k=0;k<ring2.length-1;k++){var intersection=lineIntersects(ring1[i][0],ring1[i][1],ring1[i+1][0],ring1[i+1][1],ring2[k][0],ring2[k][1],ring2[k+1][0],ring2[k+1][1]);if(intersection){results.intersections.features.push(point([intersection[0],intersection[1]]))}}}})});return results};function lineIntersects(line1StartX,line1StartY,line1EndX,line1EndY,line2StartX,line2StartY,line2EndX,line2EndY){var denominator,a,b,numerator1,numerator2,result={x:null,y:null,onLine1:false,onLine2:false};denominator=(line2EndY-line2StartY)*(line1EndX-line1StartX)-(line2EndX-line2StartX)*(line1EndY-line1StartY);if(denominator==0){if(result.x!=null&&result.y!=null){return result}else{return false}}a=line1StartY-line2StartY;b=line1StartX-line2StartX;numerator1=(line2EndX-line2StartX)*a-(line2EndY-line2StartY)*b;numerator2=(line1EndX-line1StartX)*a-(line1EndY-line1StartY)*b;a=numerator1/denominator;b=numerator2/denominator;result.x=line1StartX+a*(line1EndX-line1StartX);result.y=line1StartY+a*(line1EndY-line1StartY);if(a>0&&a<1){result.onLine1=true}if(b>0&&b<1){result.onLine2=true}if(result.onLine1&&result.onLine2){return[result.x,result.y]}else{return false}}},{"turf-featurecollection":71,"turf-point":101,"turf-polygon":102}],87:[function(require,module,exports){var distance=require("turf-distance");var point=require("turf-point");module.exports=function(line,units){var coords;if(line.type==="Feature")coords=line.geometry.coordinates;else if(line.type==="LineString")coords=line.geometry.coordinates;else throw new Error("input must be a LineString Feature or Geometry");var travelled=0;for(var i=0;i<coords.length-1;i++){travelled+=distance(point(coords[i]),point(coords[i+1]),units)}return travelled}},{"turf-distance":59,"turf-point":101}],88:[function(require,module,exports){var distance=require("turf-distance");var point=require("turf-point");var linestring=require("turf-linestring");var bearing=require("turf-bearing");var destination=require("turf-destination");module.exports=function(startPt,stopPt,line){var coords;if(line.type==="Feature")coords=line.geometry.coordinates;else if(line.type==="LineString")coords=line.geometry.coordinates;else throw new Error("input must be a LineString Feature or Geometry");var startVertex=pointOnLine(startPt,coords);var stopVertex=pointOnLine(stopPt,coords);var ends;if(startVertex.properties.index<=stopVertex.properties.index){ends=[startVertex,stopVertex]}else{ends=[stopVertex,startVertex]}var clipLine=linestring([ends[0].geometry.coordinates],{});for(var i=ends[0].properties.index+1;i<ends[1].properties.index+1;i++){clipLine.geometry.coordinates.push(coords[i])}clipLine.geometry.coordinates.push(ends[1].geometry.coordinates);return clipLine};function pointOnLine(pt,coords){var units="miles";var closestPt=point([Infinity,Infinity],{dist:Infinity});for(var i=0;i<coords.length-1;i++){var start=point(coords[i]);var stop=point(coords[i+1]);start.properties.dist=distance(pt,start,units);stop.properties.dist=distance(pt,stop,units);var direction=bearing(start,stop);var perpendicularPt=destination(pt,1e3,direction+90,units);var intersect=lineIntersects(pt.geometry.coordinates[0],pt.geometry.coordinates[1],perpendicularPt.geometry.coordinates[0],perpendicularPt.geometry.coordinates[1],start.geometry.coordinates[0],start.geometry.coordinates[1],stop.geometry.coordinates[0],stop.geometry.coordinates[1]);if(!intersect){perpendicularPt=destination(pt,1e3,direction-90,units);intersect=lineIntersects(pt.geometry.coordinates[0],pt.geometry.coordinates[1],perpendicularPt.geometry.coordinates[0],perpendicularPt.geometry.coordinates[1],start.geometry.coordinates[0],start.geometry.coordinates[1],stop.geometry.coordinates[0],stop.geometry.coordinates[1])}perpendicularPt.properties.dist=Infinity;var intersectPt;if(intersect){var intersectPt=point(intersect);intersectPt.properties.dist=distance(pt,intersectPt,units)}if(start.properties.dist<closestPt.properties.dist){closestPt=start;closestPt.properties.index=i}if(stop.properties.dist<closestPt.properties.dist){closestPt=stop;closestPt.properties.index=i}if(intersectPt&&intersectPt.properties.dist<closestPt.properties.dist){closestPt=intersectPt;closestPt.properties.index=i}}return closestPt}function lineIntersects(line1StartX,line1StartY,line1EndX,line1EndY,line2StartX,line2StartY,line2EndX,line2EndY){var denominator,a,b,numerator1,numerator2,result={x:null,y:null,onLine1:false,onLine2:false};denominator=(line2EndY-line2StartY)*(line1EndX-line1StartX)-(line2EndX-line2StartX)*(line1EndY-line1StartY);if(denominator==0){if(result.x!=null&&result.y!=null){return result}else{return false}}a=line1StartY-line2StartY;b=line1StartX-line2StartX;numerator1=(line2EndX-line2StartX)*a-(line2EndY-line2StartY)*b;numerator2=(line1EndX-line1StartX)*a-(line1EndY-line1StartY)*b;a=numerator1/denominator;b=numerator2/denominator;result.x=line1StartX+a*(line1EndX-line1StartX);result.y=line1StartY+a*(line1EndY-line1StartY);if(a>0&&a<1){result.onLine1=true}if(b>0&&b<1){result.onLine2=true}if(result.onLine1&&result.onLine2){return[result.x,result.y]}else{return false}}},{"turf-bearing":12,"turf-destination":56,"turf-distance":59,"turf-linestring":89,"turf-point":101}],89:[function(require,module,exports){module.exports=function(coordinates,properties){if(!coordinates){throw new Error("No coordinates passed")}return{type:"Feature",geometry:{type:"LineString",coordinates:coordinates},properties:properties||{}}}},{}],90:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField){polyFC.features.forEach(function(poly){if(!poly.properties){poly.properties={}}var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=max(values)});return polyFC};function max(x){var value;for(var i=0;i<x.length;i++){if(x[i]>value||value===undefined)value=x[i]}return value}},{"turf-inside":75}],91:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField){polyFC.features.forEach(function(poly){if(!poly.properties){poly.properties={}}var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=median(values)});return polyFC};function median(x){if(x.length===0)return null;var sorted=x.slice().sort(function(a,b){return a-b});if(sorted.length%2===1){return sorted[(sorted.length-1)/2]}else{var a=sorted[sorted.length/2-1];var b=sorted[sorted.length/2];return(a+b)/2}}},{"turf-inside":75}],92:[function(require,module,exports){var clone=require("clone");var union=require("turf-union");module.exports=function(polygons,done){var merged=clone(polygons.features[0]),features=polygons.features;for(var i=0,len=features.length;i<len;i++){var poly=features[i];if(poly.geometry){merged=union(merged,poly)}}return merged}},{clone:93,"turf-union":119}],93:[function(require,module,exports){(function(Buffer){"use strict";function objectToString(o){return Object.prototype.toString.call(o)}var util={isArray:function(ar){return Array.isArray(ar)||typeof ar==="object"&&objectToString(ar)==="[object Array]"},isDate:function(d){return typeof d==="object"&&objectToString(d)==="[object Date]"},isRegExp:function(re){return typeof re==="object"&&objectToString(re)==="[object RegExp]"},getRegExpFlags:function(re){var flags="";re.global&&(flags+="g");re.ignoreCase&&(flags+="i");re.multiline&&(flags+="m");return flags}};if(typeof module==="object")module.exports=clone;function clone(parent,circular,depth,prototype){var allParents=[];var allChildren=[];var useBuffer=typeof Buffer!="undefined";if(typeof circular=="undefined")circular=true;if(typeof depth=="undefined")depth=Infinity;function _clone(parent,depth){if(parent===null)return null;if(depth==0)return parent;var child;var proto;if(typeof parent!="object"){return parent}if(util.isArray(parent)){child=[]}else if(util.isRegExp(parent)){child=new RegExp(parent.source,util.getRegExpFlags(parent));if(parent.lastIndex)child.lastIndex=parent.lastIndex}else if(util.isDate(parent)){child=new Date(parent.getTime())}else if(useBuffer&&Buffer.isBuffer(parent)){child=new Buffer(parent.length);parent.copy(child);return child}else{if(typeof prototype=="undefined"){proto=Object.getPrototypeOf(parent);child=Object.create(proto)}else{child=Object.create(prototype);proto=prototype}}if(circular){var index=allParents.indexOf(parent);if(index!=-1){return allChildren[index]}allParents.push(parent);allChildren.push(child)}for(var i in parent){var attrs;if(proto){attrs=Object.getOwnPropertyDescriptor(proto,i)}if(attrs&&attrs.set==null){continue}child[i]=_clone(parent[i],depth-1)}return child}return _clone(parent,depth)}clone.clonePrototype=function(parent){if(parent===null)return null;var c=function(){};c.prototype=parent;return new c}}).call(this,require("buffer").Buffer)},{buffer:1}],94:[function(require,module,exports){var point=require("turf-point");module.exports=function(point1,point2){if(point1===null||point2===null){throw new Error("Less than two points passed.")}var x1=point1.geometry.coordinates[0];var x2=point2.geometry.coordinates[0];var y1=point1.geometry.coordinates[1];var y2=point2.geometry.coordinates[1];var x3=x1+x2;var midX=x3/2;var y3=y1+y2;var midY=y3/2;return point([midX,midY])}},{"turf-point":101}],95:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField){polyFC.features.forEach(function(poly){if(!poly.properties){poly.properties={}}var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=min(values)});return polyFC};function min(x){var value;for(var i=0;i<x.length;i++){if(x[i]<value||value===undefined)value=x[i]}return value}},{"turf-inside":75}],96:[function(require,module,exports){var distance=require("turf-distance");module.exports=function(targetPoint,points){var nearestPoint;var count=0;var dist=Infinity;points.features.forEach(function(pt){if(!nearestPoint){nearestPoint=pt;var dist=distance(targetPoint,pt,"miles");nearestPoint.properties.distance=dist}else{var dist=distance(targetPoint,pt,"miles");if(dist<nearestPoint.properties.distance){nearestPoint=pt;nearestPoint.properties.distance=dist}}});delete nearestPoint.properties.distance;return nearestPoint}},{"turf-distance":59}],97:[function(require,module,exports){module.exports=function(point,triangle){var x=point.geometry.coordinates[0],y=point.geometry.coordinates[1],x1=triangle.geometry.coordinates[0][0][0],y1=triangle.geometry.coordinates[0][0][1],z1=triangle.properties.a,x2=triangle.geometry.coordinates[0][1][0],y2=triangle.geometry.coordinates[0][1][1],z2=triangle.properties.b,x3=triangle.geometry.coordinates[0][2][0],y3=triangle.geometry.coordinates[0][2][1],z3=triangle.properties.c;var z=(z3*(x-x1)*(y-y2)+z1*(x-x2)*(y-y3)+z2*(x-x3)*(y-y1)-z2*(x-x1)*(y-y3)-z3*(x-x2)*(y-y1)-z1*(x-x3)*(y-y2))/((x-x1)*(y-y2)+(x-x2)*(y-y3)+(x-x3)*(y-y1)-(x-x1)*(y-y3)-(x-x2)*(y-y1)-(x-x3)*(y-y2));return z}},{}],98:[function(require,module,exports){var point=require("turf-point");var featurecollection=require("turf-featurecollection");var distance=require("turf-distance");module.exports=function(bbox,cell,units){var fc=featurecollection([]);var xFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[2],bbox[1]]),units);var cellWidth=xFraction*(bbox[2]-bbox[0]);var yFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[0],bbox[3]]),units);var cellHeight=yFraction*(bbox[3]-bbox[1]);var currentX=bbox[0];while(currentX<=bbox[2]){var currentY=bbox[1];while(currentY<=bbox[3]){fc.features.push(point([currentX,currentY]));currentY+=cellHeight}currentX+=cellWidth}return fc}},{"turf-distance":59,"turf-featurecollection":71,"turf-point":101}],99:[function(require,module,exports){var distance=require("turf-distance");var point=require("turf-point");var linestring=require("turf-linestring");var bearing=require("turf-bearing");var destination=require("turf-destination");module.exports=function(line,pt){var coords;if(line.type==="Feature")coords=line.geometry.coordinates;else if(line.type==="LineString")coords=line.geometry.coordinates;else throw new Error("input must be a LineString Feature or Geometry");return pointOnLine(pt,coords)};function pointOnLine(pt,coords){var units="miles";var closestPt=point([Infinity,Infinity],{dist:Infinity});for(var i=0;i<coords.length-1;i++){var start=point(coords[i]);var stop=point(coords[i+1]);start.properties.dist=distance(pt,start,units);stop.properties.dist=distance(pt,stop,units);var direction=bearing(start,stop);var perpendicularPt=destination(pt,1e3,direction+90,units);var intersect=lineIntersects(pt.geometry.coordinates[0],pt.geometry.coordinates[1],perpendicularPt.geometry.coordinates[0],perpendicularPt.geometry.coordinates[1],start.geometry.coordinates[0],start.geometry.coordinates[1],stop.geometry.coordinates[0],stop.geometry.coordinates[1]);if(!intersect){perpendicularPt=destination(pt,1e3,direction-90,units);intersect=lineIntersects(pt.geometry.coordinates[0],pt.geometry.coordinates[1],perpendicularPt.geometry.coordinates[0],perpendicularPt.geometry.coordinates[1],start.geometry.coordinates[0],start.geometry.coordinates[1],stop.geometry.coordinates[0],stop.geometry.coordinates[1])}perpendicularPt.properties.dist=Infinity;var intersectPt;if(intersect){var intersectPt=point(intersect);intersectPt.properties.dist=distance(pt,intersectPt,units)}if(start.properties.dist<closestPt.properties.dist){closestPt=start;closestPt.properties.index=i}if(stop.properties.dist<closestPt.properties.dist){closestPt=stop;closestPt.properties.index=i}if(intersectPt&&intersectPt.properties.dist<closestPt.properties.dist){closestPt=intersectPt;closestPt.properties.index=i}}return closestPt}function lineIntersects(line1StartX,line1StartY,line1EndX,line1EndY,line2StartX,line2StartY,line2EndX,line2EndY){var denominator,a,b,numerator1,numerator2,result={x:null,y:null,onLine1:false,onLine2:false};denominator=(line2EndY-line2StartY)*(line1EndX-line1StartX)-(line2EndX-line2StartX)*(line1EndY-line1StartY);if(denominator==0){if(result.x!=null&&result.y!=null){return result}else{return false}}a=line1StartY-line2StartY;b=line1StartX-line2StartX;numerator1=(line2EndX-line2StartX)*a-(line2EndY-line2StartY)*b;numerator2=(line1EndX-line1StartX)*a-(line1EndY-line1StartY)*b;a=numerator1/denominator;b=numerator2/denominator;result.x=line1StartX+a*(line1EndX-line1StartX);result.y=line1StartY+a*(line1EndY-line1StartY);if(a>0&&a<1){result.onLine1=true}if(b>0&&b<1){result.onLine2=true}if(result.onLine1&&result.onLine2){return[result.x,result.y]}else{return false}}},{"turf-bearing":12,"turf-destination":56,"turf-distance":59,"turf-linestring":89,"turf-point":101}],100:[function(require,module,exports){var featureCollection=require("turf-featurecollection");var centroid=require("turf-center");var distance=require("turf-distance");var inside=require("turf-inside");var explode=require("turf-explode");module.exports=function(fc){if(fc.type!="FeatureCollection"){if(fc.type!="Feature"){fc={type:"Feature",geometry:fc,properties:{}}}fc=featureCollection([fc])}var cent=centroid(fc);var onSurface=false;var i=0;while(!onSurface&&i<fc.features.length){var geom=fc.features[i].geometry;if(geom.type==="Point"){if(cent.geometry.coordinates[0]===geom.coordinates[0]&&cent.geometry.coordinates[1]===geom.coordinates[1]){onSurface=true}}else if(geom.type==="MultiPoint"){var onMultiPoint=false;var k=0;while(!onMultiPoint&&k<geom.coordinates.length){if(cent.geometry.coordinates[0]===geom.coordinates[k][0]&&cent.geometry.coordinates[1]===geom.coordinates[k][1]){onSurface=true;onMultiPoint=true}k++}}else if(geom.type==="LineString"){var onLine=false;var k=0;while(!onLine&&k<geom.coordinates.length-1){var x=cent.geometry.coordinates[0];var y=cent.geometry.coordinates[1];var x1=geom.coordinates[k][0];var y1=geom.coordinates[k][1];var x2=geom.coordinates[k+1][0];var y2=geom.coordinates[k+1][1];if(pointOnSegment(x,y,x1,y1,x2,y2)){onLine=true;onSurface=true}k++}}else if(geom.type==="MultiLineString"){var onMultiLine=false;var j=0;while(!onMultiLine&&j<geom.coordinates.length){var onLine=false;var k=0;var line=geom.coordinates[j];while(!onLine&&k<line.length-1){var x=cent.geometry.coordinates[0];var y=cent.geometry.coordinates[1];var x1=line[k][0];var y1=line[k][1];var x2=line[k+1][0];var y2=line[k+1][1];if(pointOnSegment(x,y,x1,y1,x2,y2)){onLine=true;onSurface=true}k++}j++}}else if(geom.type==="Polygon"||geom.type==="MultiPolygon"){var f={type:"Feature",geometry:geom,properties:{}};if(inside(cent,f)){onSurface=true}}i++}if(onSurface){return cent}else{var vertices=featureCollection([]);for(var i=0;i<fc.features.length;i++){vertices.features=vertices.features.concat(explode(fc.features[i]).features)}var closestVertex;var closestDistance=Infinity;for(var i=0;i<vertices.features.length;i++){var dist=distance(cent,vertices.features[i],"miles");if(dist<closestDistance){closestDistance=dist;closestVertex=vertices.features[i]}}return closestVertex}};function pointOnSegment(x,y,x1,y1,x2,y2){var ab=Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));var ap=Math.sqrt((x-x1)*(x-x1)+(y-y1)*(y-y1));var pb=Math.sqrt((x2-x)*(x2-x)+(y2-y)*(y2-y));if(ab===ap+pb){return true}}},{"turf-center":20,"turf-distance":59,"turf-explode":67,"turf-featurecollection":71,"turf-inside":75}],101:[function(require,module,exports){var isArray=Array.isArray||function(arg){return Object.prototype.toString.call(arg)==="[object Array]"};module.exports=function(coordinates,properties){if(!isArray(coordinates))throw new Error("Coordinates must be an array");if(coordinates.length<2)throw new Error("Coordinates must be at least 2 numbers long");return{type:"Feature",geometry:{type:"Point",coordinates:coordinates},properties:properties||{}}}},{}],102:[function(require,module,exports){module.exports=function(coordinates,properties){if(coordinates===null)throw new Error("No coordinates passed");for(var i=0;i<coordinates.length;i++){var ring=coordinates[i];for(var j=0;j<ring[ring.length-1].length;j++){if(ring.length<4){throw new Error("Each LinearRing of a Polygon must have 4 or more Positions.")}if(ring[ring.length-1][j]!==ring[0][j]){throw new Error("First and last Position are not equivalent.")}}}var polygon={type:"Feature",geometry:{type:"Polygon",coordinates:coordinates},properties:properties};if(!polygon.properties){polygon.properties={}}return polygon}},{}],103:[function(require,module,exports){var ss=require("simple-statistics");
module.exports=function(fc,field,percentiles){var vals=[];var quantiles=[];fc.features.forEach(function(feature){vals.push(feature.properties[field])});percentiles.forEach(function(percentile){quantiles.push(ss.quantile(vals,percentile*.01))});return quantiles}},{"simple-statistics":104}],104:[function(require,module,exports){arguments[4][58][0].apply(exports,arguments)},{dup:58}],105:[function(require,module,exports){var random=require("geojson-random");module.exports=function(type,count,options){options=options||{};count=count||1;switch(type){case"point":case"points":case undefined:return random.point(count,options.bbox);case"polygon":case"polygons":return random.polygon(count,options.num_vertices,options.max_radial_length,options.bbox);default:throw new Error("Unknown type given: valid options are points and polygons")}}},{"geojson-random":106}],106:[function(require,module,exports){module.exports=function(){throw new Error("call .point() or .polygon() instead")};function position(bbox){if(bbox)return coordInBBBOX(bbox);else return[lon(),lat()]}module.exports.position=position;module.exports.point=function(count,bbox){var features=[];for(i=0;i<count;i++){features.push(feature(bbox?point(position(bbox)):point()))}return collection(features)};module.exports.polygon=function(count,num_vertices,max_radial_length,bbox){if(typeof num_vertices!=="number")num_vertices=10;if(typeof max_radial_length!=="number")max_radial_length=10;var features=[];for(i=0;i<count;i++){var vertices=[],circle_offsets=Array.apply(null,new Array(num_vertices+1)).map(Math.random);circle_offsets.forEach(sumOffsets);circle_offsets.forEach(scaleOffsets);vertices[vertices.length-1]=vertices[0];vertices=vertices.map(vertexToCoordinate(position(bbox)));features.push(feature(polygon([vertices])))}function sumOffsets(cur,index,arr){arr[index]=index>0?cur+arr[index-1]:cur}function scaleOffsets(cur,index){cur=cur*2*Math.PI/circle_offsets[circle_offsets.length-1];var radial_scaler=Math.random();vertices.push([radial_scaler*max_radial_length*Math.sin(cur),radial_scaler*max_radial_length*Math.cos(cur)])}return collection(features)};function vertexToCoordinate(hub){return function(cur,index){return[cur[0]+hub[0],cur[1]+hub[1]]}}function rnd(){return Math.random()-.5}function lon(){return rnd()*360}function lat(){return rnd()*180}function point(coordinates){return{type:"Point",coordinates:coordinates||[lon(),lat()]}}function coordInBBBOX(bbox){return[Math.random()*(bbox[2]-bbox[0])+bbox[0],Math.random()*(bbox[3]-bbox[1])+bbox[1]]}function pointInBBBOX(){return{type:"Point",coordinates:[lon(),lat()]}}function polygon(coordinates){return{type:"Polygon",coordinates:coordinates}}function feature(geom){return{type:"Feature",geometry:geom,properties:{}}}function collection(f){return{type:"FeatureCollection",features:f}}},{}],107:[function(require,module,exports){var featurecollection=require("turf-featurecollection");var reclass=require("./index.js");module.exports=function(fc,inField,outField,translations,done){var reclassed=featurecollection([]);fc.features.forEach(function(feature){var reclassedFeature;var found=false;for(var i=0;i<translations.length;i++){if(feature.properties[inField]>=translations[i][0]&&feature.properties[inField]<=translations[i][1]){feature.properties[outField]=translations[i][2]}}reclassed.features.push(feature)});return reclassed}},{"./index.js":107,"turf-featurecollection":71}],108:[function(require,module,exports){var featureCollection=require("turf-featurecollection");module.exports=function(collection,key,val){var newFC=featureCollection([]);for(var i=0;i<collection.features.length;i++){if(collection.features[i].properties[key]!=val){newFC.features.push(collection.features[i])}}return newFC}},{"turf-featurecollection":71}],109:[function(require,module,exports){var featureCollection=require("turf-featurecollection");module.exports=function(fc,num){var outFC=featureCollection(getRandomSubarray(fc.features,num));return outFC};function getRandomSubarray(arr,size){var shuffled=arr.slice(0),i=arr.length,min=i-size,temp,index;while(i-->min){index=Math.floor((i+1)*Math.random());temp=shuffled[index];shuffled[index]=shuffled[i];shuffled[i]=temp}return shuffled.slice(min)}},{"turf-featurecollection":71}],110:[function(require,module,exports){var simplify=require("simplify-js");module.exports=function(feature,tolerance,highQuality){if(feature.geometry.type==="LineString"){var line={type:"LineString",coordinates:[]};var pts=feature.geometry.coordinates.map(function(coord){return{x:coord[0],y:coord[1]}});line.coordinates=simplify(pts,tolerance,highQuality).map(function(coords){return[coords.x,coords.y]});return simpleFeature(line,feature.properties)}else if(feature.geometry.type==="Polygon"){var poly={type:"Polygon",coordinates:[]};feature.geometry.coordinates.forEach(function(ring){var pts=ring.map(function(coord){return{x:coord[0],y:coord[1]}});var simpleRing=simplify(pts,tolerance,highQuality).map(function(coords){return[coords.x,coords.y]});poly.coordinates.push(simpleRing)});return simpleFeature(poly,feature.properties)}};function simpleFeature(geom,properties){return{type:"Feature",geometry:geom,properties:properties}}},{"simplify-js":111}],111:[function(require,module,exports){(function(){"use strict";function getSqDist(p1,p2){var dx=p1.x-p2.x,dy=p1.y-p2.y;return dx*dx+dy*dy}function getSqSegDist(p,p1,p2){var x=p1.x,y=p1.y,dx=p2.x-x,dy=p2.y-y;if(dx!==0||dy!==0){var t=((p.x-x)*dx+(p.y-y)*dy)/(dx*dx+dy*dy);if(t>1){x=p2.x;y=p2.y}else if(t>0){x+=dx*t;y+=dy*t}}dx=p.x-x;dy=p.y-y;return dx*dx+dy*dy}function simplifyRadialDist(points,sqTolerance){var prevPoint=points[0],newPoints=[prevPoint],point;for(var i=1,len=points.length;i<len;i++){point=points[i];if(getSqDist(point,prevPoint)>sqTolerance){newPoints.push(point);prevPoint=point}}if(prevPoint!==point)newPoints.push(point);return newPoints}function simplifyDouglasPeucker(points,sqTolerance){var len=points.length,MarkerArray=typeof Uint8Array!=="undefined"?Uint8Array:Array,markers=new MarkerArray(len),first=0,last=len-1,stack=[],newPoints=[],i,maxSqDist,sqDist,index;markers[first]=markers[last]=1;while(last){maxSqDist=0;for(i=first+1;i<last;i++){sqDist=getSqSegDist(points[i],points[first],points[last]);if(sqDist>maxSqDist){index=i;maxSqDist=sqDist}}if(maxSqDist>sqTolerance){markers[index]=1;stack.push(first,index,index,last)}last=stack.pop();first=stack.pop()}for(i=0;i<len;i++){if(markers[i])newPoints.push(points[i])}return newPoints}function simplify(points,tolerance,highestQuality){var sqTolerance=tolerance!==undefined?tolerance*tolerance:1;points=highestQuality?points:simplifyRadialDist(points,sqTolerance);points=simplifyDouglasPeucker(points,sqTolerance);return points}if(typeof define==="function"&&define.amd)define(function(){return simplify});else if(typeof module!=="undefined")module.exports=simplify;else if(typeof self!=="undefined")self.simplify=simplify;else window.simplify=simplify})()},{}],112:[function(require,module,exports){module.exports=function(bbox,factor){var currentXDistance=bbox[2]-bbox[0];var currentYDistance=bbox[3]-bbox[1];var newXDistance=currentXDistance*factor;var newYDistance=currentYDistance*factor;var xChange=newXDistance-currentXDistance;var yChange=newYDistance-currentYDistance;var lowX=bbox[0]-xChange/2;var lowY=bbox[1]-yChange/2;var highX=xChange/2+bbox[2];var highY=yChange/2+bbox[3];var sized=[lowX,lowY,highX,highY];return sized}},{}],113:[function(require,module,exports){var featurecollection=require("turf-featurecollection");var point=require("turf-point");var polygon=require("turf-polygon");var distance=require("turf-distance");module.exports=function(bbox,cell,units){var fc=featurecollection([]);var xFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[2],bbox[1]]),units);var cellWidth=xFraction*(bbox[2]-bbox[0]);var yFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[0],bbox[3]]),units);var cellHeight=yFraction*(bbox[3]-bbox[1]);var currentX=bbox[0];while(currentX<=bbox[2]){var currentY=bbox[1];while(currentY<=bbox[3]){var cellPoly=polygon([[[currentX,currentY],[currentX,currentY+cellHeight],[currentX+cellWidth,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY]]]);fc.features.push(cellPoly);currentY+=cellHeight}currentX+=cellWidth}return fc}},{"turf-distance":59,"turf-featurecollection":71,"turf-point":101,"turf-polygon":102}],114:[function(require,module,exports){var midpoint=require("turf-midpoint");var point=require("turf-point");var distance=require("turf-distance");module.exports=function(bbox){var squareBbox=[0,0,0,0];var lowLeft=point([bbox[0],bbox[1]]);var topLeft=point([bbox[0],bbox[3]]);var topRight=point([bbox[2],bbox[3]]);var lowRight=point([bbox[2],bbox[1]]);var horizontalDistance=distance(lowLeft,lowRight,"miles");var verticalDistance=distance(lowLeft,topLeft,"miles");if(horizontalDistance>=verticalDistance){squareBbox[0]=bbox[0];squareBbox[2]=bbox[2];var verticalMidpoint=midpoint(lowLeft,topLeft);squareBbox[1]=verticalMidpoint.geometry.coordinates[1]-(bbox[2]-bbox[0])/2;squareBbox[3]=verticalMidpoint.geometry.coordinates[1]+(bbox[2]-bbox[0])/2;return squareBbox}else{squareBbox[1]=bbox[1];squareBbox[3]=bbox[3];var horzontalMidpoint=midpoint(lowLeft,lowRight);squareBbox[0]=horzontalMidpoint.geometry.coordinates[0]-(bbox[3]-bbox[1])/2;squareBbox[2]=horzontalMidpoint.geometry.coordinates[0]+(bbox[3]-bbox[1])/2;return squareBbox}}},{"turf-distance":59,"turf-midpoint":94,"turf-point":101}],115:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(polyFC,ptFC,inField,outField){polyFC.features.forEach(function(poly){if(!poly.properties){poly.properties={}}var values=[];ptFC.features.forEach(function(pt){if(inside(pt,poly)){values.push(pt.properties[inField])}});poly.properties[outField]=sum(values)});return polyFC};function sum(x){var value=0;for(var i=0;i<x.length;i++){value+=x[i]}return value}},{"turf-inside":75}],116:[function(require,module,exports){var inside=require("turf-inside");module.exports=function(points,polygons,field,outField){points=JSON.parse(JSON.stringify(points));polygons=JSON.parse(JSON.stringify(polygons));points.features.forEach(function(pt){if(!pt.properties){pt.properties={}}polygons.features.forEach(function(poly){if(pt.properties[outField]===undefined){var isInside=inside(pt,poly);if(isInside){pt.properties[outField]=poly.properties[field]}}})});return points}},{"turf-inside":75}],117:[function(require,module,exports){var polygon=require("turf-polygon");var featurecollection=require("turf-featurecollection");module.exports=function(points,z){return featurecollection(triangulate(points.features.map(function(p){var point={x:p.geometry.coordinates[0],y:p.geometry.coordinates[1]};if(z)point.z=p.properties[z];return point})).map(function(triangle){return polygon([[[triangle.a.x,triangle.a.y],[triangle.b.x,triangle.b.y],[triangle.c.x,triangle.c.y],[triangle.a.x,triangle.a.y]]],{a:triangle.a.z,b:triangle.b.z,c:triangle.c.z})}))};function Triangle(a,b,c){this.a=a;this.b=b;this.c=c;var A=b.x-a.x,B=b.y-a.y,C=c.x-a.x,D=c.y-a.y,E=A*(a.x+b.x)+B*(a.y+b.y),F=C*(a.x+c.x)+D*(a.y+c.y),G=2*(A*(c.y-b.y)-B*(c.x-b.x)),minx,miny,dx,dy;if(Math.abs(G)<1e-6){minx=Math.min(a.x,b.x,c.x);miny=Math.min(a.y,b.y,c.y);dx=(Math.max(a.x,b.x,c.x)-minx)*.5;dy=(Math.max(a.y,b.y,c.y)-miny)*.5;this.x=minx+dx;this.y=miny+dy;this.r=dx*dx+dy*dy}else{this.x=(D*E-B*F)/G;this.y=(A*F-C*E)/G;dx=this.x-a.x;dy=this.y-a.y;this.r=dx*dx+dy*dy}}function byX(a,b){return b.x-a.x}function dedup(edges){var j=edges.length,a,b,i,m,n;outer:while(j){b=edges[--j];a=edges[--j];i=j;while(i){n=edges[--i];m=edges[--i];if(a===m&&b===n||a===n&&b===m){edges.splice(j,2);edges.splice(i,2);j-=2;continue outer}}}}function triangulate(vertices){if(vertices.length<3)return[];vertices.sort(byX);var i=vertices.length-1,xmin=vertices[i].x,xmax=vertices[0].x,ymin=vertices[i].y,ymax=ymin;while(i--){if(vertices[i].y<ymin)ymin=vertices[i].y;if(vertices[i].y>ymax)ymax=vertices[i].y}var dx=xmax-xmin,dy=ymax-ymin,dmax=dx>dy?dx:dy,xmid=(xmax+xmin)*.5,ymid=(ymax+ymin)*.5,open=[new Triangle({x:xmid-20*dmax,y:ymid-dmax,__sentinel:true},{x:xmid,y:ymid+20*dmax,__sentinel:true},{x:xmid+20*dmax,y:ymid-dmax,__sentinel:true})],closed=[],edges=[],j,a,b;i=vertices.length;while(i--){edges.length=0;j=open.length;while(j--){dx=vertices[i].x-open[j].x;if(dx>0&&dx*dx>open[j].r){closed.push(open[j]);open.splice(j,1);continue}dy=vertices[i].y-open[j].y;if(dx*dx+dy*dy>open[j].r)continue;edges.push(open[j].a,open[j].b,open[j].b,open[j].c,open[j].c,open[j].a);open.splice(j,1)}dedup(edges);j=edges.length;while(j){b=edges[--j];a=edges[--j];open.push(new Triangle(a,b,vertices[i]))}}Array.prototype.push.apply(closed,open);i=closed.length;while(i--)if(closed[i].a.__sentinel||closed[i].b.__sentinel||closed[i].c.__sentinel)closed.splice(i,1);return closed}},{"turf-featurecollection":71,"turf-polygon":102}],118:[function(require,module,exports){var featurecollection=require("turf-featurecollection");var point=require("turf-point");var polygon=require("turf-polygon");var distance=require("turf-distance");module.exports=function(bbox,cell,units){var fc=featurecollection([]);var xFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[2],bbox[1]]),units);var cellWidth=xFraction*(bbox[2]-bbox[0]);var yFraction=cell/distance(point([bbox[0],bbox[1]]),point([bbox[0],bbox[3]]),units);var cellHeight=yFraction*(bbox[3]-bbox[1]);var xi=0;var currentX=bbox[0];while(currentX<=bbox[2]){var yi=0;var currentY=bbox[1];while(currentY<=bbox[3]){if(xi%2===0&&yi%2===0){var cell1=polygon([[[currentX,currentY],[currentX,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY]]]);fc.features.push(cell1);var cell2=polygon([[[currentX,currentY+cellHeight],[currentX+cellWidth,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY+cellHeight]]]);fc.features.push(cell2)}else if(xi%2===0&&yi%2===1){var cell1=polygon([[[currentX,currentY],[currentX+cellWidth,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY]]]);fc.features.push(cell1);var cell2=polygon([[[currentX,currentY],[currentX,currentY+cellHeight],[currentX+cellWidth,currentY+cellHeight],[currentX,currentY]]]);fc.features.push(cell2)}else if(yi%2===0&&xi%2===1){var cell1=polygon([[[currentX,currentY],[currentX,currentY+cellHeight],[currentX+cellWidth,currentY+cellHeight],[currentX,currentY]]]);fc.features.push(cell1);var cell2=polygon([[[currentX,currentY],[currentX+cellWidth,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY]]]);fc.features.push(cell2)}else if(yi%2===1&&xi%2===1){var cell1=polygon([[[currentX,currentY],[currentX,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY]]]);fc.features.push(cell1);var cell2=polygon([[[currentX,currentY+cellHeight],[currentX+cellWidth,currentY+cellHeight],[currentX+cellWidth,currentY],[currentX,currentY+cellHeight]]]);fc.features.push(cell2)}currentY+=cellHeight;yi++}xi++;currentX+=cellWidth}return fc}},{"turf-distance":59,"turf-featurecollection":71,"turf-point":101,"turf-polygon":102}],119:[function(require,module,exports){var jsts=require("jsts");module.exports=function(poly1,poly2){var reader=new jsts.io.GeoJSONReader;var a=reader.read(JSON.stringify(poly1.geometry));var b=reader.read(JSON.stringify(poly2.geometry));var union=a.union(b);var parser=new jsts.io.GeoJSONParser;union=parser.write(union);return{type:"Feature",geometry:union,properties:poly1.properties}}},{jsts:120}],120:[function(require,module,exports){arguments[4][16][0].apply(exports,arguments)},{"./lib/jsts":121,dup:16,"javascript.util":123}],121:[function(require,module,exports){arguments[4][17][0].apply(exports,arguments)},{dup:17}],122:[function(require,module,exports){(function(global){(function(){var e=this;function f(a,b){var c=a.split("."),d=e;c[0]in d||!d.execScript||d.execScript("var "+c[0]);for(var t;c.length&&(t=c.shift());)c.length||void 0===b?d=d[t]?d[t]:d[t]={}:d[t]=b}function g(a,b){function c(){}c.prototype=b.prototype;a.q=b.prototype;a.prototype=new c;a.prototype.constructor=a;a.p=function(a,c,O){var M=Array.prototype.slice.call(arguments,2);return b.prototype[c].apply(a,M)}}function h(a){this.message=a||""}g(h,Error);f("javascript.util.EmptyStackException",h);h.prototype.name="EmptyStackException";function 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index=0,lat=0,lng=0,coordinates=[],shift=0,result=0,byte=null,latitude_change,longitude_change,factor=Math.pow(10,precision||5);while(index<str.length){byte=null;shift=0;result=0;do{byte=str.charCodeAt(index++)-63;result|=(byte&31)<<shift;shift+=5}while(byte>=32);latitude_change=result&1?~(result>>1):result>>1;shift=result=0;do{byte=str.charCodeAt(index++)-63;result|=(byte&31)<<shift;shift+=5}while(byte>=32);longitude_change=result&1?~(result>>1):result>>1;lat+=latitude_change;lng+=longitude_change;coordinates.push([lat/factor,lng/factor]);
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}};var line=turf.flip(geojson);console.log(polyline.encode(line));
Raw
package.json
{
"name": "requirebin-sketch",
"version": "1.0.0",
"dependencies": {
"turf": "2.0.2",
"polyline": "0.0.3"
}
}
Raw
page-body.html
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Raw
page-head.html
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