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Last active January 24, 2017 21:27
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U.S. Counties TopoJSON Mesh
Raw
.block
license: gpl-3.0
height: 600
border: no
Raw
README.md

A demo of TopoJSON on a U.S. counties shapefile from the U.S. census bureau.

Raw
index.html
<!DOCTYPE html>
<svg width="960" height="600"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/topojson.v2.min.js"></script>
<script>
var svg = d3.select("svg");
d3.json("https://d3js.org/us-10m.v1.json", function(error, us) {
if (error) throw error;
var path = d3.geoPath(),
mesh = topojson.mesh(us),
transform = topojson.transform(us);
svg.append("path")
.attr("fill", "none")
.attr("stroke", "#000")
.attr("stroke-width", 0.25)
.attr("stroke-linejoin", "round")
.attr("d", path(mesh));
svg.selectAll("circle")
.data(us.arcs)
.enter().append("circle")
.attr("transform", function(d) { return "translate(" + transform(d[0]) + ")"; })
.attr("r", 1.25);
});
</script>
@aesnyder
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aesnyder commented May 6, 2014

I noticed a ton of examples are no longer working, this one included. Any plans to fix?

@Monalisa17
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d3.json("/mbostock/raw/4090846/us.json", function(error, us)

what this line indicate?

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