Like the other Mexican municipalities map, but using projected TopoJSON for faster rendering and better simplification. In response to a Stack Overflow question.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.municipalities {
fill: #222;
}
.municipalities :hover {
fill: orange;
}
.state-boundary {
fill: none;
stroke: #fff;
pointer-events: none;
}
.municipality-boundary {
fill: none;
stroke: #fff;
stroke-opacity: .25;
stroke-width: .5px;
pointer-events: none;
}
</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 = 628;
var path = d3.geo.path()
.projection(null);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("mx.json", function(error, mx) {
if (error) throw error;
svg.append("g")
.attr("class", "municipalities")
.selectAll("path")
.data(topojson.feature(mx, mx.objects.municipalities).features)
.enter().append("path")
.attr("d", path)
.append("title")
.text(function(d) { return d.properties.name; });
svg.append("path")
.datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state !== b.properties.state; }))
.attr("class", "state-boundary")
.attr("d", path);
svg.append("path")
.datum(topojson.mesh(mx, mx.objects.municipalities, function(a, b) { return a.properties.state === b.properties.state && a !== b; }))
.attr("class", "municipality-boundary")
.attr("d", path);
});
d3.select(self.frameElement).style("height", height + "px");
</script>
{
"name": "anonymous",
"version": "0.0.1",
"private": true,
"devDependencies": {
"topojson": "1"
}
}