phedinkus · August 29, 2015 14:23
diff --git a/broad_ip_county_school_counts.csv b/broad_ip_county_school_counts.csv
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <meta charset="utf-8">
 <style>

 .counties path {
  fill: none;
 }

 .states {
  fill: none;
  stroke: #fff;
  stroke-linejoin: round;
 }

 .q0-9 { fill:rgb(247,251,255); }
 .q1-9 { fill:rgb(222,235,247); }
 .q2-9 { fill:rgb(198,219,239); }
 .q3-9 { fill:rgb(158,202,225); }
 .q4-9 { fill:rgb(107,174,214); }
 .q5-9 { fill:rgb(66,146,198); }
 .q6-9 { fill:rgb(33,113,181); }
 .q7-9 { fill:rgb(8,81,156); }
 .q8-9 { fill:rgb(8,48,107); }

 </style>
 <body>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/queue-async/1.0.7/queue.min.js"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script></body>
diff --git a/map.js b/map.js
 var width = 960,
    height = 600;

 var rateById = d3.map();

 var quantize = d3.scale.quantize()
    .domain([0, 0.15])
    .range(d3.range(9).map(function(i) { return "q" + i + "-9"; }));

 var projection = d3.geo.albersUsa()
    .scale(1280)
    .translate([width / 2, height / 2]);

 var path = d3.geo.path()
    .projection(projection);

 var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);

 queue()
    .defer(d3.json, "https://gist.githubusercontent.com/phedinkus/8a0faa454f51a54b787e/raw/c899e3d4f3353924e495667c842f54a07090cfab/us.json")
    .defer(d3.csv, "https://gist.githubusercontent.com/phedinkus/8a0faa454f51a54b787e/raw/8a57d222d61287462faeb0b9104b4ca0cebf6bba/broad_ip_county_school_counts.csv", function(d) { 
  rateById.set(d.id, +d.count); 
 })
    .await(ready);

 function ready(error, us) {
  if (error) throw error;

  svg.append("g")
      .attr("class", "counties")
    .selectAll("path")
      .data(topojson.feature(us, us.objects.counties).features)
    .enter().append("path")
      .attr("class", function(d) { 
         return quantize(rateById.get(d.id)); 
      })
      .attr("d", path);

  svg.append("path")
      .datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
      .attr("class", "states")
      .attr("d", path);
 }

 d3.select(self.frameElement).style("height", height + "px");
diff --git a/us.json b/us.json
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.counties path {
	fill: none;
	}

	.states {
	fill: none;
	stroke: #fff;
	stroke-linejoin: round;
	}

	.q0-9 { fill:rgb(247,251,255); }
	.q1-9 { fill:rgb(222,235,247); }
	.q2-9 { fill:rgb(198,219,239); }
	.q3-9 { fill:rgb(158,202,225); }
	.q4-9 { fill:rgb(107,174,214); }
	.q5-9 { fill:rgb(66,146,198); }
	.q6-9 { fill:rgb(33,113,181); }
	.q7-9 { fill:rgb(8,81,156); }
	.q8-9 { fill:rgb(8,48,107); }

	</style>
	<body>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/queue-async/1.0.7/queue.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script></body>
	var width = 960,
	height = 600;

	var rateById = d3.map();

	var quantize = d3.scale.quantize()
	.domain([0, 0.15])
	.range(d3.range(9).map(function(i) { return "q" + i + "-9"; }));

	var projection = d3.geo.albersUsa()
	.scale(1280)
	.translate([width / 2, height / 2]);

	var path = d3.geo.path()
	.projection(projection);

	var svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height);

	queue()
	.defer(d3.json, "https://gist.githubusercontent.com/phedinkus/8a0faa454f51a54b787e/raw/c899e3d4f3353924e495667c842f54a07090cfab/us.json")
	.defer(d3.csv, "https://gist.githubusercontent.com/phedinkus/8a0faa454f51a54b787e/raw/8a57d222d61287462faeb0b9104b4ca0cebf6bba/broad_ip_county_school_counts.csv", function(d) {
	rateById.set(d.id, +d.count);
	})
	.await(ready);

	function ready(error, us) {
	if (error) throw error;

	svg.append("g")
	.attr("class", "counties")
	.selectAll("path")
	.data(topojson.feature(us, us.objects.counties).features)
	.enter().append("path")
	.attr("class", function(d) {
	return quantize(rateById.get(d.id));
	})
	.attr("d", path);

	svg.append("path")
	.datum(topojson.mesh(us, us.objects.states, function(a, b) { return a !== b; }))
	.attr("class", "states")
	.attr("d", path);
	}

	d3.select(self.frameElement).style("height", height + "px");