.block

## .block
license: gpl-3.0

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<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 projection = d3.geo.stereographic()
    .clipAngle(125)
    .scale(300)
    .translate([width / 2, height / 2])
    .precision(.1);

var path = d3.geo.path()
    .projection(projection);

var λ = d3.scale.linear()
    .domain([0, width])
    .range([-180, 180]);

var φ = d3.scale.linear()
    .domain([0, height])
    .range([90, -90]);

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

svg.on("mousemove", function() {
  var p = d3.mouse(this);
  projection.rotate([λ(p[0]), φ(p[1])]);
  svg.selectAll("path").attr("d", path);
});

d3.json("/mbostock/raw/4090846/world-110m.json", function(error, world) {
  if (error) throw error;

  svg.append("path")
      .datum(topojson.feature(world, world.objects.land))
      .attr("d", path);
});

</script>

## thumbnail.png

      
        

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              thumbnail.png