idibidiart/index.html

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

.graticule {
  fill: none;
  stroke: #777;
}

.boundary {
  fill: #ccc;
  fill-opacity: .8;
  stroke: #000;
}

</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/d3.geo.projection.v0.min.js"></script>
<script>

var width = 960,
    height = 960;

var projection = d3.geo.satellite()
    .distance(1.1)
    .scale(2000)
    .rotate([76.00, -34.50, 32.12])
    .center([-2, 5])
    .tilt(25);

var circle = function() {
  return d3.geo.circle()
    .angle(20)
    .origin([-projection.rotate()[0], -projection.rotate()[1]]);
};

var graticule = d3.geo.graticule()
    .extent([[-93, 27], [-47 + 1e-6, 57 + 1e-6]])
    .step([3, 3]);

var path = function() {
  return d3.geo.path()
    .projection(projection);
};

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

svg.append("path")
    .datum(graticule)
    .attr("class", "graticule")
    .attr("d", path());

d3.json("/d/3750900/us-boundary.json", function(collection) {
  svg.append("path")
      .datum(circle().clip(collection))
      .attr("class", "boundary")
      .attr("d", path());

  // begin animation
  d3.timer(function(t) {
    // scale passes through 0 in 6 seconds and becomes negative
    projection = projection.scale(6000-t);
    svg.select("path.graticule")
        .datum(graticule)
        .attr("d", path());

    svg.select("path.boundary")
        .datum(circle().clip(collection))
        .attr("d", path());
  });
});

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

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

	.graticule {
	fill: none;
	stroke: #777;
	}

	.boundary {
	fill: #ccc;
	fill-opacity: .8;
	stroke: #000;
	}

	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script src="http://d3js.org/d3.geo.projection.v0.min.js"></script>
	<script>

	var width = 960,
	height = 960;

	var projection = d3.geo.satellite()
	.distance(1.1)
	.scale(2000)
	.rotate([76.00, -34.50, 32.12])
	.center([-2, 5])
	.tilt(25);

	var circle = function() {
	return d3.geo.circle()
	.angle(20)
	.origin([-projection.rotate()[0], -projection.rotate()[1]]);
	};

	var graticule = d3.geo.graticule()
	.extent([[-93, 27], [-47 + 1e-6, 57 + 1e-6]])
	.step([3, 3]);

	var path = function() {
	return d3.geo.path()
	.projection(projection);
	};

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

	svg.append("path")
	.datum(graticule)
	.attr("class", "graticule")
	.attr("d", path());

	d3.json("/d/3750900/us-boundary.json", function(collection) {
	svg.append("path")
	.datum(circle().clip(collection))
	.attr("class", "boundary")
	.attr("d", path());

	// begin animation
	d3.timer(function(t) {
	// scale passes through 0 in 6 seconds and becomes negative
	projection = projection.scale(6000-t);
	svg.select("path.graticule")
	.datum(graticule)
	.attr("d", path());

	svg.select("path.boundary")
	.datum(circle().clip(collection))
	.attr("d", path());
	});
	});

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

	</script>