requirebin sketch

index.js

var toPoly = require('pslg-to-poly')

var points = [
  // loop 1
  [-115,  100],
  [ 103,  100],
  [ 107,  50],
  [-100, -100],
  
  // loop 2
  [50, 50],
  [150, 0],
  [0, -150]
]
  
var edges = [
  // loop 1
  [0, 1],
  [1, 2],
  [2, 3],
  [3, 0],

  // loop 2
  [4, 5],
  [5, 6],
  [6, 4]
]

console.log(toPoly(points, edges))

minified.js

setTimeout(function(){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){"use strict";var monotoneTriangulate=require("./lib/monotone");var makeIndex=require("./lib/triangulation");var delaunayFlip=require("./lib/delaunay");var filterTriangulation=require("./lib/filter");module.exports=cdt2d;function canonicalizeEdge(e){return[Math.min(e[0],e[1]),Math.max(e[0],e[1])]}function compareEdge(a,b){return a[0]-b[0]||a[1]-b[1]}function canonicalizeEdges(edges){return edges.map(canonicalizeEdge).sort(compareEdge)}function getDefault(options,property,dflt){if(property in options){return options[property]}return dflt}function cdt2d(points,edges,options){if(!Array.isArray(edges)){options=edges||{};edges=[]}else{options=options||{};edges=edges||[]}var delaunay=!!getDefault(options,"delaunay",true);var interior=!!getDefault(options,"interior",true);var exterior=!!getDefault(options,"exterior",true);var infinity=!!getDefault(options,"infinity",false);if(!interior&&!exterior||points.length===0){return[]}var cells=monotoneTriangulate(points,edges);if(delaunay||interior!==exterior||infinity){var triangulation=makeIndex(points.length,canonicalizeEdges(edges));for(var i=0;i<cells.length;++i){var f=cells[i];triangulation.addTriangle(f[0],f[1],f[2])}if(delaunay){delaunayFlip(points,triangulation)}if(!exterior){return filterTriangulation(triangulation,-1)}else if(!interior){return filterTriangulation(triangulation,1,infinity)}else if(infinity){return filterTriangulation(triangulation,0,infinity)}else{return triangulation.cells()}}else{return cells}}},{"./lib/delaunay":2,"./lib/filter":3,"./lib/monotone":4,"./lib/triangulation":5}],2:[function(require,module,exports){"use strict";var inCircle=require("robust-in-sphere")[4];var bsearch=require("binary-search-bounds");module.exports=delaunayRefine;function testFlip(points,triangulation,stack,a,b,x){var y=triangulation.opposite(a,b);if(y<0){return}if(b<a){var tmp=a;a=b;b=tmp;tmp=x;x=y;y=tmp}if(triangulation.isConstraint(a,b)){return}if(inCircle(points[a],points[b],points[x],points[y])<0){stack.push(a,b)}}function delaunayRefine(points,triangulation){var stack=[];var numPoints=points.length;var stars=triangulation.stars;for(var a=0;a<numPoints;++a){var star=stars[a];for(var j=1;j<star.length;j+=2){var b=star[j];if(b<a){continue}if(triangulation.isConstraint(a,b)){continue}var x=star[j-1],y=-1;for(var k=1;k<star.length;k+=2){if(star[k-1]===b){y=star[k];break}}if(y<0){continue}if(inCircle(points[a],points[b],points[x],points[y])<0){stack.push(a,b)}}}while(stack.length>0){var b=stack.pop();var a=stack.pop();var x=-1,y=-1;var star=stars[a];for(var i=1;i<star.length;i+=2){var s=star[i-1];var t=star[i];if(s===b){y=t}else if(t===b){x=s}}if(x<0||y<0){continue}if(inCircle(points[a],points[b],points[x],points[y])>=0){continue}triangulation.flip(a,b);testFlip(points,triangulation,stack,x,a,y);testFlip(points,triangulation,stack,a,y,x);testFlip(points,triangulation,stack,y,b,x);testFlip(points,triangulation,stack,b,x,y)}}},{"binary-search-bounds":6,"robust-in-sphere":7}],3:[function(require,module,exports){"use strict";var bsearch=require("binary-search-bounds");module.exports=classifyFaces;function FaceIndex(cells,neighbor,constraint,flags,active,next,boundary){this.cells=cells;this.neighbor=neighbor;this.flags=flags;this.constraint=constraint;this.active=active;this.next=next;this.boundary=boundary}var proto=FaceIndex.prototype;function compareCell(a,b){return a[0]-b[0]||a[1]-b[1]||a[2]-b[2]}proto.locate=function(){var key=[0,0,0];return function(a,b,c){var x=a,y=b,z=c;if(b<c){if(b<a){x=b;y=c;z=a}}else if(c<a){x=c;y=a;z=b}if(x<0){return-1}key[0]=x;key[1]=y;key[2]=z;return bsearch.eq(this.cells,key,compareCell)}}();function indexCells(triangulation,infinity){var cells=triangulation.cells();var nc=cells.length;for(var i=0;i<nc;++i){var c=cells[i];var x=c[0],y=c[1],z=c[2];if(y<z){if(y<x){c[0]=y;c[1]=z;c[2]=x}}else if(z<x){c[0]=z;c[1]=x;c[2]=y}}cells.sort(compareCell);var flags=new Array(nc);for(var i=0;i<flags.length;++i){flags[i]=0}var active=[];var next=[];var neighbor=new Array(3*nc);var constraint=new Array(3*nc);var boundary=null;if(infinity){boundary=[]}var index=new FaceIndex(cells,neighbor,constraint,flags,active,next,boundary);for(var i=0;i<nc;++i){var c=cells[i];for(var j=0;j<3;++j){var x=c[j],y=c[(j+1)%3];var a=neighbor[3*i+j]=index.locate(y,x,triangulation.opposite(y,x));var b=constraint[3*i+j]=triangulation.isConstraint(x,y);if(a<0){if(b){next.push(i)}else{active.push(i);flags[i]=1}if(infinity){boundary.push([y,x,-1])}}}}return index}function filterCells(cells,flags,target){var ptr=0;for(var i=0;i<cells.length;++i){if(flags[i]===target){cells[ptr++]=cells[i]}}cells.length=ptr;return cells}function classifyFaces(triangulation,target,infinity){var index=indexCells(triangulation,infinity);if(target===0){if(infinity){return index.cells.concat(index.boundary)}else{return index.cells}}var side=1;var active=index.active;var next=index.next;var flags=index.flags;var cells=index.cells;var constraint=index.constraint;var neighbor=index.neighbor;while(active.length>0||next.length>0){while(active.length>0){var t=active.pop();if(flags[t]===-side){continue}flags[t]=side;var c=cells[t];for(var j=0;j<3;++j){var f=neighbor[3*t+j];if(f>=0&&flags[f]===0){if(constraint[3*t+j]){next.push(f)}else{active.push(f);flags[f]=side}}}}var tmp=next;next=active;active=tmp;next.length=0;side=-side}var result=filterCells(cells,flags,target);if(infinity){return result.concat(index.boundary)}return result}},{"binary-search-bounds":6}],4:[function(require,module,exports){"use strict";var bsearch=require("binary-search-bounds");var orient=require("robust-orientation")[3];var EVENT_POINT=0;var EVENT_END=1;var EVENT_START=2;module.exports=monotoneTriangulate;function PartialHull(a,b,idx,lowerIds,upperIds){this.a=a;this.b=b;this.idx=idx;this.lowerIds=lowerIds;this.upperIds=upperIds}function Event(a,b,type,idx){this.a=a;this.b=b;this.type=type;this.idx=idx}function compareEvent(a,b){var d=a.a[0]-b.a[0]||a.a[1]-b.a[1]||a.type-b.type;if(d){return d}if(a.type!==EVENT_POINT){d=orient(a.a,a.b,b.b);if(d){return d}}return a.idx-b.idx}function testPoint(hull,p){return orient(hull.a,hull.b,p)}function addPoint(cells,hulls,points,p,idx){var lo=bsearch.lt(hulls,p,testPoint);var hi=bsearch.gt(hulls,p,testPoint);for(var i=lo;i<hi;++i){var hull=hulls[i];var lowerIds=hull.lowerIds;var m=lowerIds.length;while(m>1&&orient(points[lowerIds[m-2]],points[lowerIds[m-1]],p)>0){cells.push([lowerIds[m-1],lowerIds[m-2],idx]);m-=1}lowerIds.length=m;lowerIds.push(idx);var upperIds=hull.upperIds;var m=upperIds.length;while(m>1&&orient(points[upperIds[m-2]],points[upperIds[m-1]],p)<0){cells.push([upperIds[m-2],upperIds[m-1],idx]);m-=1}upperIds.length=m;upperIds.push(idx)}}function findSplit(hull,edge){var d;if(hull.a[0]<edge.a[0]){d=orient(hull.a,hull.b,edge.a)}else{d=orient(edge.b,edge.a,hull.a)}if(d){return d}if(edge.b[0]<hull.b[0]){d=orient(hull.a,hull.b,edge.b)}else{d=orient(edge.b,edge.a,hull.b)}return d||hull.idx-edge.idx}function splitHulls(hulls,points,event){var splitIdx=bsearch.le(hulls,event,findSplit);var hull=hulls[splitIdx];var upperIds=hull.upperIds;var x=upperIds[upperIds.length-1];hull.upperIds=[x];hulls.splice(splitIdx+1,0,new PartialHull(event.a,event.b,event.idx,[x],upperIds))}function mergeHulls(hulls,points,event){var tmp=event.a;event.a=event.b;event.b=tmp;var mergeIdx=bsearch.eq(hulls,event,findSplit);var upper=hulls[mergeIdx];var lower=hulls[mergeIdx-1];lower.upperIds=upper.upperIds;hulls.splice(mergeIdx,1)}function monotoneTriangulate(points,edges){var numPoints=points.length;var numEdges=edges.length;var events=[];for(var i=0;i<numPoints;++i){events.push(new Event(points[i],null,EVENT_POINT,i))}for(var i=0;i<numEdges;++i){var e=edges[i];var a=points[e[0]];var b=points[e[1]];if(a[0]<b[0]){events.push(new Event(a,b,EVENT_START,i),new Event(b,a,EVENT_END,i))}else if(a[0]>b[0]){events.push(new Event(b,a,EVENT_START,i),new Event(a,b,EVENT_END,i))}}events.sort(compareEvent);var minX=events[0].a[0]-(1+Math.abs(events[0].a[0]))*Math.pow(2,-52);var hull=[new PartialHull([minX,1],[minX,0],-1,[],[],[],[])];var cells=[];for(var i=0,numEvents=events.length;i<numEvents;++i){var event=events[i];var type=event.type;if(type===EVENT_POINT){addPoint(cells,hull,points,event.a,event.idx)}else if(type===EVENT_START){splitHulls(hull,points,event)}else{mergeHulls(hull,points,event)}}return cells}},{"binary-search-bounds":6,"robust-orientation":18}],5:[function(require,module,exports){"use strict";var bsearch=require("binary-search-bounds");module.exports=createTriangulation;function Triangulation(stars,edges){this.stars=stars;this.edges=edges}var proto=Triangulation.prototype;function removePair(list,j,k){for(var i=1,n=list.length;i<n;i+=2){if(list[i-1]===j&&list[i]===k){list[i-1]=list[n-2];list[i]=list[n-1];list.length=n-2;return}}}proto.isConstraint=function(){var e=[0,0];function compareLex(a,b){return a[0]-b[0]||a[1]-b[1]}return function(i,j){e[0]=Math.min(i,j);e[1]=Math.max(i,j);return bsearch.eq(this.edges,e,compareLex)>=0}}();proto.removeTriangle=function(i,j,k){var stars=this.stars;removePair(stars[i],j,k);removePair(stars[j],k,i);removePair(stars[k],i,j)};proto.addTriangle=function(i,j,k){var stars=this.stars;stars[i].push(j,k);stars[j].push(k,i);stars[k].push(i,j)};proto.opposite=function(j,i){var list=this.stars[i];for(var k=1,n=list.length;k<n;k+=2){if(list[k]===j){return list[k-1]}}return-1};proto.flip=function(i,j){var a=this.opposite(i,j);var b=this.opposite(j,i);this.removeTriangle(i,j,a);this.removeTriangle(j,i,b);this.addTriangle(i,b,a);this.addTriangle(j,a,b)};proto.edges=function(){var stars=this.stars;var result=[];for(var i=0,n=stars.length;i<n;++i){var list=stars[i];for(var j=0,m=list.length;j<m;j+=2){result.push([list[j],list[j+1]])}}return result};proto.cells=function(){var stars=this.stars;var result=[];for(var i=0,n=stars.length;i<n;++i){var list=stars[i];for(var j=0,m=list.length;j<m;j+=2){var s=list[j];var t=list[j+1];if(i<Math.min(s,t)){result.push([i,s,t])}}}return result};function createTriangulation(numVerts,edges){var stars=new Array(numVerts);for(var i=0;i<numVerts;++i){stars[i]=[]}return new Triangulation(stars,edges)}},{"binary-search-bounds":6}],6:[function(require,module,exports){"use strict";function compileSearch(funcName,predicate,reversed,extraArgs,earlyOut){var code=["function ",funcName,"(a,l,h,",extraArgs.join(","),"){",earlyOut?"":"var i=",reversed?"l-1":"h+1",";while(l<=h){var m=(l+h)>>>1,x=a[m]"];if(earlyOut){if(predicate.indexOf("c")<0){code.push(";if(x===y){return m}else if(x<=y){")}else{code.push(";var p=c(x,y);if(p===0){return m}else if(p<=0){")}}else{code.push(";if(",predicate,"){i=m;")}if(reversed){code.push("l=m+1}else{h=m-1}")}else{code.push("h=m-1}else{l=m+1}")}code.push("}");if(earlyOut){code.push("return -1};")}else{code.push("return i};")}return code.join("")}function compileBoundsSearch(predicate,reversed,suffix,earlyOut){var result=new Function([compileSearch("A","x"+predicate+"y",reversed,["y"],earlyOut),compileSearch("P","c(x,y)"+predicate+"0",reversed,["y","c"],earlyOut),"function dispatchBsearch",suffix,"(a,y,c,l,h){if(typeof(c)==='function'){return P(a,(l===void 0)?0:l|0,(h===void 0)?a.length-1:h|0,y,c)}else{return A(a,(c===void 0)?0:c|0,(l===void 0)?a.length-1:l|0,y)}}return dispatchBsearch",suffix].join(""));return result()}module.exports={ge:compileBoundsSearch(">=",false,"GE"),gt:compileBoundsSearch(">",false,"GT"),lt:compileBoundsSearch("<",true,"LT"),le:compileBoundsSearch("<=",true,"LE"),eq:compileBoundsSearch("-",true,"EQ",true)}},{}],7:[function(require,module,exports){"use strict";var twoProduct=require("two-product");var robustSum=require("robust-sum");var robustDiff=require("robust-subtract");var robustScale=require("robust-scale");var NUM_EXPAND=6;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-2,"]"].join("")}}return result}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 makeProduct(a,b){if(a.charAt(0)==="m"){if(b.charAt(0)==="w"){var toks=a.split("[");return["w",b.substr(1),"m",toks[0].substr(1)].join("")}else{return["prod(",a,",",b,")"].join("")}}else{return makeProduct(b,a)}}function sign(s){if(s&1!==0){return"-"}return""}function determinant(m){if(m.length===2){return[["diff(",makeProduct(m[0][0],m[1][1]),",",makeProduct(m[1][0],m[0][1]),")"].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 makeSquare(d,n){var terms=[];for(var i=0;i<n-2;++i){terms.push(["prod(m",d,"[",i,"],m",d,"[",i,"])"].join(""))}return generateSum(terms)}function orientation(n){var pos=[];var neg=[];var m=matrix(n);for(var i=0;i<n;++i){m[0][i]="1";m[n-1][i]="w"+i}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)))}}var posExpr=generateSum(pos);var negExpr=generateSum(neg);var funcName="exactInSphere"+n;var funcArgs=[];for(var i=0;i<n;++i){funcArgs.push("m"+i)}var code=["function ",funcName,"(",funcArgs.join(),"){"];for(var i=0;i<n;++i){code.push("var w",i,"=",makeSquare(i,n),";");for(var j=0;j<n;++j){if(j!==i){code.push("var w",i,"m",j,"=scale(w",i,",m",j,"[0]);")}}}code.push("var p=",posExpr,",n=",negExpr,",d=diff(p,n);return d[d.length-1];}return ",funcName);var proc=new Function("sum","diff","prod","scale",code.join(""));return proc(robustSum,robustDiff,twoProduct,robustScale)}function inSphere0(){return 0}function inSphere1(){return 0}function inSphere2(){return 0}var CACHED=[inSphere0,inSphere1,inSphere2];function slowInSphere(args){var proc=CACHED[args.length];if(!proc){proc=CACHED[args.length]=orientation(args.length)}return proc.apply(undefined,args)}function generateInSphereTest(){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 testInSphere(",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 testInSphere");procArgs.push(code.join(""));var proc=Function.apply(undefined,procArgs);module.exports=proc.apply(undefined,[slowInSphere].concat(CACHED));for(var i=0;i<=NUM_EXPAND;++i){module.exports[i]=CACHED[i]}}generateInSphereTest()},{"robust-scale":9,"robust-subtract":10,"robust-sum":11,"two-product":12}],8:[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]}},{}],9:[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":12,"two-sum":8}],10:[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}},{}],11:[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}},{}],12:[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]}},{}],13:[function(require,module,exports){module.exports=require(8)},{}],14:[function(require,module,exports){module.exports=require(9)},{"two-product":17,"two-sum":13}],15:[function(require,module,exports){module.exports=require(10)},{}],16:[function(require,module,exports){module.exports=require(11)},{}],17:[function(require,module,exports){module.exports=require(12)},{}],18:[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":14,"robust-subtract":15,"robust-sum":16,"two-product":17}],19:[function(require,module,exports){"use strict";module.exports=boundary;var bnd=require("boundary-cells");var reduce=require("reduce-simplicial-complex");function boundary(cells){return reduce(bnd(cells))}},{"boundary-cells":20,"reduce-simplicial-complex":24}],20:[function(require,module,exports){"use strict";module.exports=boundary;function boundary(cells){var n=cells.length;var sz=0;for(var i=0;i<n;++i){sz+=cells[i].length}var result=new Array(sz);var ptr=0;for(var i=0;i<n;++i){var c=cells[i];var d=c.length;for(var j=0;j<d;++j){var b=result[ptr++]=new Array(d-1);for(var k=1;k<d;++k){b[k-1]=c[(j+k)%d]}}}return result}},{}],21:[function(require,module,exports){"use strict";module.exports=orientation;function orientation(s){var p=1;for(var i=1;i<s.length;++i){for(var j=0;j<i;++j){if(s[i]<s[j]){p=-p}else if(s[j]===s[i]){return 0}}}return p}},{}],22:[function(require,module,exports){module.exports=compareCells;var min=Math.min;function compareInt(a,b){return a-b}function compareCells(a,b){var n=a.length,t=a.length-b.length;if(t){return t}switch(n){case 0:return 0;case 1:return a[0]-b[0];case 2:return a[0]+a[1]-b[0]-b[1]||min(a[0],a[1])-min(b[0],b[1]);case 3:var l1=a[0]+a[1],m1=b[0]+b[1];t=l1+a[2]-(m1+b[2]);if(t){return t}var l0=min(a[0],a[1]),m0=min(b[0],b[1]);return min(l0,a[2])-min(m0,b[2])||min(l0+a[2],l1)-min(m0+b[2],m1);case 4:var aw=a[0],ax=a[1],ay=a[2],az=a[3],bw=b[0],bx=b[1],by=b[2],bz=b[3];return aw+ax+ay+az-(bw+bx+by+bz)||min(aw,ax,ay,az)-min(bw,bx,by,bz,bw)||min(aw+ax,aw+ay,aw+az,ax+ay,ax+az,ay+az)-min(bw+bx,bw+by,bw+bz,bx+by,bx+bz,by+bz)||min(aw+ax+ay,aw+ax+az,aw+ay+az,ax+ay+az)-min(bw+bx+by,bw+bx+bz,bw+by+bz,bx+by+bz);default:var as=a.slice().sort(compareInt);var bs=b.slice().sort(compareInt);for(var i=0;i<n;++i){t=as[i]-bs[i];if(t){return t}}return 0}}},{}],23:[function(require,module,exports){"use strict";var compareCells=require("compare-cell");var parity=require("cell-orientation");module.exports=compareOrientedCells;function compareOrientedCells(a,b){return compareCells(a,b)||parity(a)-parity(b)}},{"cell-orientation":21,"compare-cell":22}],24:[function(require,module,exports){"use strict";var compareCell=require("compare-cell");var compareOrientedCell=require("compare-oriented-cell");var orientation=require("cell-orientation");module.exports=reduceCellComplex;function reduceCellComplex(cells){cells.sort(compareOrientedCell);var n=cells.length;var ptr=0;for(var i=0;i<n;++i){var c=cells[i];var o=orientation(c);if(o===0){continue}if(ptr>0){var f=cells[ptr-1];if(compareCell(c,f)===0&&orientation(f)!==o){ptr-=1;continue}}cells[ptr++]=c}cells.length=ptr;return cells}},{"cell-orientation":21,"compare-cell":22,"compare-oriented-cell":23}],"pslg-to-poly":[function(require,module,exports){"use strict";var cdt2d=require("cdt2d");var boundary=require("simplicial-complex-boundary");module.exports=pslgToPolygon;function pslgToPolygon(points,edges){var cells=cdt2d(points,edges,{delaunay:false,exterior:false});var bnd=boundary(cells);var adj=new Array(points.length);for(var i=0;i<points.length;++i){adj[i]=[]}for(var i=0;i<bnd.length;++i){var e=bnd[i];adj[e[0]].push(e[1])}var loops=[];for(var i=0;i<points.length;++i){if(adj[i].length===0){continue}var v=i,loop=[];do{loop.push(points[v]);v=adj[v].pop()}while(v!==i);loops.push(loop)}return loops}},{cdt2d:1,"simplicial-complex-boundary":19}]},{},[]);var toPoly=require("pslg-to-poly");var points=[[-115,100],[103,100],[107,50],[-100,-100],[50,50],[150,0],[0,-150]];var edges=[[0,1],[1,2],[2,3],[3,0],[4,5],[5,6],[6,4]];console.log(toPoly(points,edges))},0);

package.json

{
  "name": "requirebin-sketch",
  "version": "1.0.0",
  "dependencies": {
    "pslg-to-poly": "1.0.0"
  }
}

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