jefffriesen/README.md

## README.md

      
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              README.md
            
          
    This is a d3.js visualization of US zip codes.
Original zip code dataset from Geocommons.
5MB shapefile with properties such as zipcode, state, name, population, area, more.
http://geocommons.com/overlays/54893 (Thank you Bill Greer)
This converts it nicely:
topojson \
  -p name=PO_NAME \
  -p zip=ZIP \
  -p state=STATE \
  -o zips_us_topo.json \
  zip_codes_for_the_usa.shp


## index.html
<!DOCTYPE html>
<meta charset="utf-8">

<style>
  .zip {
    fill: none;
    stroke: #CCC;
    stroke-width: .5px;
  }
</style>

<body>
  <script src="http://d3js.org/d3.v3.min.js"></script>
  <script src="http://d3js.org/queue.v1.min.js"></script>
  <script src="http://d3js.org/topojson.v1.min.js"></script>

  <script>

    var width = 960,
    height = 500;

    var path = d3.geo.path();

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

    queue()
    .defer(d3.json, "zips_us_topo.json")
    .await(ready);

    function ready(error, us) {
      svg.append("g")
      .attr("class", "counties")
      .selectAll("path")
      .data(topojson.feature(us, us.objects.zip_codes_for_the_usa).features)
      .enter().append("path")
      .attr("class", "zip")
      .attr("data-zip", function(d) {return d.properties.zip; })
      .attr("data-state", function(d) {return d.properties.state; })
      .attr("data-name", function(d) {return d.properties.name; })
      .attr("d", path);
    }

  </script>
</body>

## zips_us_topo.json

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

	<style>
	.zip {
	fill: none;
	stroke: #CCC;
	stroke-width: .5px;
	}
	</style>

	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script src="http://d3js.org/queue.v1.min.js"></script>
	<script src="http://d3js.org/topojson.v1.min.js"></script>

	<script>

	var width = 960,
	height = 500;

	var path = d3.geo.path();

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

	queue()
	.defer(d3.json, "zips_us_topo.json")
	.await(ready);

	function ready(error, us) {
	svg.append("g")
	.attr("class", "counties")
	.selectAll("path")
	.data(topojson.feature(us, us.objects.zip_codes_for_the_usa).features)
	.enter().append("path")
	.attr("class", "zip")
	.attr("data-zip", function(d) {return d.properties.zip; })
	.attr("data-state", function(d) {return d.properties.state; })
	.attr("data-name", function(d) {return d.properties.name; })
	.attr("d", path);
	}

	</script>
	</body>