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Forked from mbostock/.block
Created March 5, 2016 03:29
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U.S. Counties TopoJSON
Raw
.block
license: gpl-3.0
Raw
README.md

A demo of TopoJSON on a U.S. counties shapefile from the U.S. census bureau. The same TopoJSON file can also be used to show states.

Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
fill: #ccc;
stroke: #fff;
stroke-width: .5px;
}
path:hover {
fill: red;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//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);
d3.json("/mbostock/raw/4090846/us.json", function(error, topology) {
if (error) throw error;
svg.selectAll("path")
.data(topojson.feature(topology, topology.objects.counties).features)
.enter().append("path")
.attr("d", path);
});
</script>
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