Jason Heppler hepplerj

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Testing topojson.merge to merge multiple polygons into a single polygon.

Using WMS in web maps.

	var http = require('http');
	function handler(req, res) {
	res.writeHead(200, {'Content-Type': 'text/plain'});
	res.end('Hello world\n');
	}

	http.createServer(handler).listen(3000, '127.0.0.1');
	http.createServer(handler).listen(3001, 'localhost');
	http.createServer(handler).listen(3002, '127.0.0.1'); // ifconfig
	http.createServer(handler).listen(3003, 'host.example.com'); // echo $HOSTNAME

	# Install subversion
	sudo apt-get -y install subversion

	# Install g++
	sudo apt-get -y install g++

	# Install Hierarchical Data Format library
	sudo apt-get -y install libhdf4-alt-dev

	# Get trunk of gdal

	# Bulk convert shapefiles to geojson

	function shp2geojson() {
	ogr2ogr -f GeoJSON -t_srs crs:84 "$1.geojson" "$1.shp"
	}

	for var in .shp; do shp2geojson ${var%\.}; done

	<!DOCTYPE html>
	<svg width="960" height="500"><g transform="translate(360,250)"></g></svg>
	<script src="https://d3js.org/d3.v4.min.js"></script>
	<script>

	var formatPercent = d3.format(".0%"),
	formatNumber = d3.format(".0f");

	var threshold = d3.scaleThreshold()
	.domain([0.11, 0.22, 0.33, 0.50])

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">

	<!-- D3.js -->
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>

	<!-- Google fonts -->
	<link href='https://fonts.googleapis.com/css?family=Cardo:400,400italic,700' rel='stylesheet' type='text/css'>

	# Superfund sites CSV
	calif_superfund_sites <- read.csv("./data/calif_superfund_sites.csv")
	# We'll clean up the Superfund data a bit, selecting only
	# the columns we want to keep.
	calif_superfund_sites <- calif_superfund_sites %>%
	select(NAME, CITY,STATE,ZIP,LONGITUDE,LATITUDE,STATUSDATE,HRS_SCORE)
	# Let's filter out California sites.
	calif_superfund_sites <- subset(calif_superfund_sites,
	STATE %in% "CA")
	# Convert the date into an R friendly version.