Merging Counties II by mbostock

index.html

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

.land {
  fill: #bbb;
  stroke: #000;
  stroke-linejoin: round;
  stroke-linecap: round;
}

</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 = 600;

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);

d3.json("/mbostock/raw/4090846/us.json", function(error, us) {
  if (error) throw error;

  svg.append("path")
      .datum(topojson.merge(us, us.objects.counties.geometries))
      .attr("class", "land")
      .attr("d", path);
});

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

</script>