mbostock/.block

## .block
license: gpl-3.0

## README.md

      
    Raw
  

              README.md
            
          
    A comparison of the Van der Grinten projection, with and without D3’s adaptive resampling. Note the polygonal artifacts in Antarctica that are fixed with resampling.

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

body {
  background: #fcfcfa;
}

.stroke {
  fill: none;
  stroke: #000;
  stroke-width: 3px;
}

.fill {
  fill: #fff;
}

.graticule {
  fill: none;
  stroke: #777;
  stroke-width: .5px;
  stroke-opacity: .5;
}

.land {
  fill: #222;
}

.boundary {
  fill: none;
  stroke: #fff;
  stroke-width: .5px;
}

</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script src="//d3js.org/d3.geo.projection.v0.min.js"></script>
<script src="//d3js.org/topojson.v1.min.js"></script>
<script>

var width = 960,
    height = 500;

var projection = d3.geo.vanDerGrinten()
    .scale(72)
    .translate([0, 0])
    .precision(.1);

var position = d3.scale.ordinal()
    .domain([0, .1])
    .rangePoints([0, width], 1.02);

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

var graticule = d3.geo.graticule();

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

var g = svg.selectAll("g")
    .data(position.domain())
  .enter().append("g")
    .attr("transform", function(d) { return "translate(" + position(d) + "," + height / 2 + ")"; });

g.append("defs").append("path")
    .datum({type: "Sphere"})
    .attr("id", "sphere")
    .attr("d", path);

g.append("use")
    .attr("class", "stroke")
    .attr("xlink:href", "#sphere");

g.append("use")
    .attr("class", "fill")
    .attr("xlink:href", "#sphere");

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

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

  g.insert("path", ".graticule")
      .datum(topojson.feature(world, world.objects.land))
      .attr("class", "land");

  g.insert("path", ".graticule")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("class", "boundary");

  g.each(function(d) {
    projection.precision(d);
    d3.select(this).selectAll(".land,.boundary").attr("d", path);
  });
});

</script>

## thumbnail.png

      
    Raw
  

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

	body {
	background: #fcfcfa;
	}

	.stroke {
	fill: none;
	stroke: #000;
	stroke-width: 3px;
	}

	.fill {
	fill: #fff;
	}

	.graticule {
	fill: none;
	stroke: #777;
	stroke-width: .5px;
	stroke-opacity: .5;
	}

	.land {
	fill: #222;
	}

	.boundary {
	fill: none;
	stroke: #fff;
	stroke-width: .5px;
	}

	</style>
	<body>
	<script src="//d3js.org/d3.v3.min.js"></script>
	<script src="//d3js.org/d3.geo.projection.v0.min.js"></script>
	<script src="//d3js.org/topojson.v1.min.js"></script>
	<script>

	var width = 960,
	height = 500;

	var projection = d3.geo.vanDerGrinten()
	.scale(72)
	.translate([0, 0])
	.precision(.1);

	var position = d3.scale.ordinal()
	.domain([0, .1])
	.rangePoints([0, width], 1.02);

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

	var graticule = d3.geo.graticule();

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

	var g = svg.selectAll("g")
	.data(position.domain())
	.enter().append("g")
	.attr("transform", function(d) { return "translate(" + position(d) + "," + height / 2 + ")"; });

	g.append("defs").append("path")
	.datum({type: "Sphere"})
	.attr("id", "sphere")
	.attr("d", path);

	g.append("use")
	.attr("class", "stroke")
	.attr("xlink:href", "#sphere");

	g.append("use")
	.attr("class", "fill")
	.attr("xlink:href", "#sphere");

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

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

	g.insert("path", ".graticule")
	.datum(topojson.feature(world, world.objects.land))
	.attr("class", "land");

	g.insert("path", ".graticule")
	.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	.attr("class", "boundary");

	g.each(function(d) {
	projection.precision(d);
	d3.select(this).selectAll(".land,.boundary").attr("d", path);
	});
	});

	</script>