piwodlaiwo/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org
Interrupted Hemispheres with Country Colors:
http://blockbuilder.org/piwodlaiwo/3c3155de870b919ca50dede8385231b9
Quartic Authalic (in d3v3):
https://bl.ocks.org/mbostock/4463175
Quartic Authalic (in d3v4 with Afghanistan issue):
https://bl.ocks.org/piwodlaiwo/9f23abd977381b77e9cb86b1888769fc
Links on Interrupted Quartic Authalic projection:
http://www.progonos.com/furuti/MapProj/Normal/ProjInt/projInt.html
https://map-projections.net/compare.php?p1=quartic-authalic&p2=sinusoidal&w=1&sm=1&d=1
https://www.mapthematics.com/ProjectionsList.php?Projection=115

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

body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
svg { width:100%; height: 100% }

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

.fill {
  fill: #fff;
}

.graticule {
  fill: none;
  stroke: #777;
  stroke-width: 0.5px;
  stroke-opacity: 0.5;
}

.land {
  fill: #222;
}
.boundary {
  fill: none;
  stroke: #fff;
  stroke-width: .5px;
}

/* Issue with Afghanistan */
/*
.land {
  fill: #222;
  stroke: #fff;
  stroke-width: 0.5px;
}
*/

</style>
<body>
<script src="https://unpkg.com/d3@4"></script>
<script src="https://unpkg.com/d3-geo-projection@2"></script>
<script src="https://unpkg.com/topojson-client@3"></script>
<script>
var width = 960;
var height = 500;

var svg = d3.select("body").append("svg");

// 2 lobes
var lobes = [
  [
    [[-180,   0], [ -90,  90], [   0,   0]],
    [[   0,   0], [  90,  90], [ 180,   0]]
  ],
  [
    [[-180,   0], [ -90, -90], [   0,   0]],
    [[   0,   0], [  90, -90], [ 180,   0]]
  ]
];

var projection = d3.geoInterrupt(d3.geoHammerRaw(Infinity), lobes)
    .rotate([20, 0])
    .scale(140)
    .translate([width / 2, height / 2])
    .precision(.1);

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

var graticule = d3.geoGraticule();

var defs = svg.append("defs");

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

defs.append("clipPath")
    .attr("id", "clip")
  .append("use")
    .attr("xlink:href", "#sphere");

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

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

svg.append("path")
    .datum(graticule)
    .attr("class", "graticule")
    .attr("clip-path", "url(#clip)")
    .attr("d", path);


d3.json("https://unpkg.com/world-atlas@1/world/50m.json", function(error, world) {
  if (error) throw error;

//Issue with Afghanistan
/*
    svg.selectAll("path")
       .data(topojson.feature(world, world.objects.countries).features)
       .enter().append("path")
       .attr("class", "land")
       .attr("clip-path", "url(#clip)")
       .attr("d", path);
*/

  svg.insert("path", ".graticule")
      .datum(topojson.feature(world, world.objects.land))
      .attr("class", "land")
      .attr("clip-path", "url(#clip)")
      .attr("d", path);

  svg.insert("path", ".graticule")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("class", "boundary")
      .attr("clip-path", "url(#clip)")
      .attr("d", path);


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

	body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
	svg { width:100%; height: 100% }

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

	.fill {
	fill: #fff;
	}

	.graticule {
	fill: none;
	stroke: #777;
	stroke-width: 0.5px;
	stroke-opacity: 0.5;
	}

	.land {
	fill: #222;
	}
	.boundary {
	fill: none;
	stroke: #fff;
	stroke-width: .5px;
	}

	/* Issue with Afghanistan */
	/*
	.land {
	fill: #222;
	stroke: #fff;
	stroke-width: 0.5px;
	}
	*/

	</style>
	<body>
	<script src="https://unpkg.com/d3@4"></script>
	<script src="https://unpkg.com/d3-geo-projection@2"></script>
	<script src="https://unpkg.com/topojson-client@3"></script>
	<script>
	var width = 960;
	var height = 500;

	var svg = d3.select("body").append("svg");

	// 2 lobes
	var lobes = [
	[
	[[-180, 0], [ -90, 90], [ 0, 0]],
	[[ 0, 0], [ 90, 90], [ 180, 0]]
	],
	[
	[[-180, 0], [ -90, -90], [ 0, 0]],
	[[ 0, 0], [ 90, -90], [ 180, 0]]
	]
	];

	var projection = d3.geoInterrupt(d3.geoHammerRaw(Infinity), lobes)
	.rotate([20, 0])
	.scale(140)
	.translate([width / 2, height / 2])
	.precision(.1);

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

	var graticule = d3.geoGraticule();

	var defs = svg.append("defs");

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

	defs.append("clipPath")
	.attr("id", "clip")
	.append("use")
	.attr("xlink:href", "#sphere");

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

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

	svg.append("path")
	.datum(graticule)
	.attr("class", "graticule")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);



	d3.json("https://unpkg.com/world-atlas@1/world/50m.json", function(error, world) {
	if (error) throw error;

	//Issue with Afghanistan
	/*
	svg.selectAll("path")
	.data(topojson.feature(world, world.objects.countries).features)
	.enter().append("path")
	.attr("class", "land")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);
	*/

	svg.insert("path", ".graticule")
	.datum(topojson.feature(world, world.objects.land))
	.attr("class", "land")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);

	svg.insert("path", ".graticule")
	.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	.attr("class", "boundary")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);


	});
	</script>