pnavarrc/countries.topojson

## countries.topojson

      
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              countries.topojson
            
          
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## index.html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <title>Custom Projections</title>
</head>
<body>

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

  <div class="container">
    <h1>Custom Projections</h1>

    <div id="map-container"></div>

  </div>

  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
  <script src="app.js"></script>

  <script>
  var width  = 800,
      height = 400;

  // https://en.wikipedia.org/wiki/Sinusoidal_projection
  function rawSinusoidal(λ, φ)  {
    return [λ * Math.cos(φ), φ];
  }

  var custom = d3.geo.projection(rawSinusoidal)
    .scale(120)
    .translate([width / 2, height / 2]);

  var graticule = d3.geo.graticule();

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

  var div = d3.select('#map-container');

  d3.json('countries.topojson', function(error, data) {

    if (error) { throw error; }

    var features = topojson.feature(data, data.objects.countries);

    var svg = div.selectAll('svg.map').data([data]);

    svg.enter().append('svg')
      .classed('map', true);

    svg
      .attr('width',  width)
      .attr('height', height);

    svg.exit().remove();

    var lines = svg.selectAll('path.graticule').data([graticule()]);

    lines.enter().append('path')
      .classed('graticule', true);

    lines
      .attr('d', pathGenerator);

    // Path Element
    var path = svg.selectAll('path.countries').data([features]);

    path.enter().append('path')
      .classed('countries', true);

    path
      .attr('d', pathGenerator);

    path.exit().remove();

  });
  </script>

</body>
</html>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">

	<title>Custom Projections</title>
	</head>
	<body>

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

	<div class="container">
	<h1>Custom Projections</h1>

	<div id="map-container"></div>

	</div>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js"></script>
	<script src="app.js"></script>

	<script>
	var width = 800,
	height = 400;

	// https://en.wikipedia.org/wiki/Sinusoidal_projection
	function rawSinusoidal(λ, φ) {
	return [λ * Math.cos(φ), φ];
	}

	var custom = d3.geo.projection(rawSinusoidal)
	.scale(120)
	.translate([width / 2, height / 2]);

	var graticule = d3.geo.graticule();

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

	var div = d3.select('#map-container');

	d3.json('countries.topojson', function(error, data) {

	if (error) { throw error; }

	var features = topojson.feature(data, data.objects.countries);

	var svg = div.selectAll('svg.map').data([data]);

	svg.enter().append('svg')
	.classed('map', true);

	svg
	.attr('width', width)
	.attr('height', height);

	svg.exit().remove();

	var lines = svg.selectAll('path.graticule').data([graticule()]);

	lines.enter().append('path')
	.classed('graticule', true);

	lines
	.attr('d', pathGenerator);

	// Path Element
	var path = svg.selectAll('path.countries').data([features]);

	path.enter().append('path')
	.classed('countries', true);

	path
	.attr('d', pathGenerator);

	path.exit().remove();

	});
	</script>

	</body>
	</html>