D3 Examples - Antemeridian Cutting

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
.background {
  fill: #a4bac7;
}
​
.foreground {
  fill: none;
  stroke: #333;
  stroke-width: 1.5px;
}
​
.graticule {
  fill: none;
  stroke: #fff;
  stroke-width: .5px;
}
​
.graticule:nth-child(2n) {
  stroke-dasharray: 2,2;
}
​
.land {
  fill: #d7c7ad;
  stroke: #766951;
}
​
.boundary {
  fill: none;
  stroke: #a5967e;
}
​
svg {
  cursor: move;
}
​
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
​
var width = 960,
    height = 500;
​
var projection = d3.geo.albers().translate([width / 2 - .5, height / 1.75 - .5]).scale(120),
    path = d3.geo.path().projection(projection),
    graticule = d3.geo.graticule();
​
var svg = d3.select("body").append("svg")
    .datum({x: 0, y: 0})
    .attr("width", width)
    .attr("height", height)
    .call(d3.behavior.drag()
      .origin(Object)
      .on("drag", function(d) {
        d.x = d3.event.x;
        d.y = d3.event.y;
        projection.rotate([d.x, -d.y, 0]);
        svg.selectAll("path").attr("d", path);
      }));
​
svg.append("rect")
    .attr("class", "background")
    .attr("width", width)
    .attr("height", height);
​
svg.selectAll(".graticule")
    .data(graticule.lines)
  .enter().append("path")
    .attr("class", "graticule")
    .attr("d", path);
​
d3.json("/mbostock/3682676/example/readme-boundaries.json", function(err, collection) {
  svg.insert("g", ".graticule")
      .attr("class", "boundary")
    .selectAll("path")
      .data(collection.geometries)
    .enter().append("path")
      .attr("d", path);
    });
​
d3.json("/mbostock/3682676/example/readme-land.json", function(err, collection) {
  svg.insert("g", ".graticule,.boundary")
      .attr("class", "land")
    .selectAll("path")
      .data(collection.geometries)
    .enter().append("path")
      .attr("d", path);
});
​
</script>
​
    