toja/.block

## .block
license: gpl-3.0
height: 500
border: no

## 50m.json

      
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              50m.json
            
          
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## index.html
<!DOCTYPE html>
<meta charset="utf-8">

<script src="//d3js.org/d3.v4.min.js"></script>
<script src="//d3js.org/d3-geo-projection.v1.min.js"></script>
<script src="//d3js.org/topojson.v2.min.js"></script>

<style>

.land {
    fill: #323436;
    stroke: none;
    opacity: 0.5;
}

.border {
    fill: none;
    stroke: #727476;
    stroke-width: .5px;
    stroke-linejoin: round;
    stroke-linecap: round;
}

.graticule {
    fill: none;
    stroke: #323436;
    stroke-width: .5px;
}

.stroke {
  fill: none;
  stroke: #121416;
  stroke-width: .5px;
}

.fill {
  fill: #121416;
}

.bubble {
    stroke: none;
    stroke-width: .5px;
}

.q0-9 { fill:rgba(255,247,243, 0.1); }
.q1-9 { fill:rgba(253,224,221, 0.2); }
.q2-9 { fill:rgba(252,197,192, 0.3); }
.q3-9 { fill:rgba(250,159,181, 0.35); }
.q4-9 { fill:rgba(247,104,161, 0.4); }
.q5-9 { fill:rgba(221,52,151, 0.45); }
.q6-9 { fill:rgba(174,1,126, 0.5); }
.q7-9 { fill:rgba(122,1,119, 0.55); }
.q8-9 { fill:rgba(73,0,106, 0.6); }

</style>

<body>
<script>
var width = 960,
    height = 500;

var radius = d3.scaleSqrt()
    .domain([0, 1.45e9])
    .range([0, 32]);

var proj = d3.geoCylindricalStereographic()
    .parallel(35)  // DIN A4
    .precision(.1);

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

var quantile = d3.scaleQuantile()
    .range(d3.range(9).map(function(i) { return "q" + i + "-9"; }));

var dichteById = d3.map();

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

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");

var features = svg.append("g")
    .attr("class", "land");

var bubbles = svg.append("g");

function renderWorld(world) {

    // Graticule
    features.append("path")
        .datum(d3.geoGraticule())
        .attr("class", "graticule")
        .attr("clip-path", "url(#clip)")
        .attr("d", path);

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

    // country borders
    features.append("path")
        .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
        .attr("class", "border")
        .attr("clip-path", "url(#clip)")
        .attr("d", path);
}

function renderBubbles(nodes) {

    var node = bubbles.selectAll("circle")
        .data(nodes)
        .enter().append("circle")
            .attr("class", function(d) { return quantile(dichteById.get(d.n)); })
            .attr("r", function(d) {return d.r;} );

    node.append("title").text(function(d) {return d.n;});

    var simulation = d3.forceSimulation(nodes)
        .velocityDecay(0.8)
        .force("x", d3.forceX().x(function(d) { return d.x; }))
        .force("y", d3.forceY().y(function(d) { return d.y; }))
        .force("collide", d3.forceCollide().radius(function(d) { return d.r }).strength(0.5))
        .on("tick", function() {
          node
            .attr("cx", function(d) { return d.x; })
            .attr("cy", function(d) { return d.y; })
        });
}

d3.json("50m.json", function (error, world) {
    if (error) throw error;
    renderWorld(world);
});

d3.json("points.geojson", function (error, points) {
    if (error) throw error;

    // set domain for quantiles based on data
    for (var i = 0; i < points.features.length; ++i) {
        dichteById.set(points.features[i].properties.name, +points.features[i].properties.dichte);
    }
    quantile.domain(dichteById.values());

    // create a set of nodes for dorling cartogram
    var nodes = points.features.map(function(d) {
        var point = proj(d.geometry.coordinates);
        return {
          x: point[0], y: point[1],
          //x0: point[0], y0: point[1],
          r: radius(d.properties.pop_est),
          n: d.properties.name
        }
      });

    // render cartogram
    renderBubbles(nodes);
});

</script>

## points.geojson

      
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              points.geojson
            
          
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## thumbnail.png

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

	<script src="//d3js.org/d3.v4.min.js"></script>
	<script src="//d3js.org/d3-geo-projection.v1.min.js"></script>
	<script src="//d3js.org/topojson.v2.min.js"></script>

	<style>

	.land {
	fill: #323436;
	stroke: none;
	opacity: 0.5;
	}

	.border {
	fill: none;
	stroke: #727476;
	stroke-width: .5px;
	stroke-linejoin: round;
	stroke-linecap: round;
	}

	.graticule {
	fill: none;
	stroke: #323436;
	stroke-width: .5px;
	}

	.stroke {
	fill: none;
	stroke: #121416;
	stroke-width: .5px;
	}

	.fill {
	fill: #121416;
	}

	.bubble {
	stroke: none;
	stroke-width: .5px;
	}

	.q0-9 { fill:rgba(255,247,243, 0.1); }
	.q1-9 { fill:rgba(253,224,221, 0.2); }
	.q2-9 { fill:rgba(252,197,192, 0.3); }
	.q3-9 { fill:rgba(250,159,181, 0.35); }
	.q4-9 { fill:rgba(247,104,161, 0.4); }
	.q5-9 { fill:rgba(221,52,151, 0.45); }
	.q6-9 { fill:rgba(174,1,126, 0.5); }
	.q7-9 { fill:rgba(122,1,119, 0.55); }
	.q8-9 { fill:rgba(73,0,106, 0.6); }

	</style>

	<body>
	<script>
	var width = 960,
	height = 500;

	var radius = d3.scaleSqrt()
	.domain([0, 1.45e9])
	.range([0, 32]);

	var proj = d3.geoCylindricalStereographic()
	.parallel(35) // DIN A4
	.precision(.1);

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

	var quantile = d3.scaleQuantile()
	.range(d3.range(9).map(function(i) { return "q" + i + "-9"; }));

	var dichteById = d3.map();

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

	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");

	var features = svg.append("g")
	.attr("class", "land");

	var bubbles = svg.append("g");

	function renderWorld(world) {

	// Graticule
	features.append("path")
	.datum(d3.geoGraticule())
	.attr("class", "graticule")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);

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

	// country borders
	features.append("path")
	.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
	.attr("class", "border")
	.attr("clip-path", "url(#clip)")
	.attr("d", path);
	}

	function renderBubbles(nodes) {

	var node = bubbles.selectAll("circle")
	.data(nodes)
	.enter().append("circle")
	.attr("class", function(d) { return quantile(dichteById.get(d.n)); })
	.attr("r", function(d) {return d.r;} );

	node.append("title").text(function(d) {return d.n;});

	var simulation = d3.forceSimulation(nodes)
	.velocityDecay(0.8)
	.force("x", d3.forceX().x(function(d) { return d.x; }))
	.force("y", d3.forceY().y(function(d) { return d.y; }))
	.force("collide", d3.forceCollide().radius(function(d) { return d.r }).strength(0.5))
	.on("tick", function() {
	node
	.attr("cx", function(d) { return d.x; })
	.attr("cy", function(d) { return d.y; })
	});
	}

	d3.json("50m.json", function (error, world) {
	if (error) throw error;
	renderWorld(world);
	});

	d3.json("points.geojson", function (error, points) {
	if (error) throw error;

	// set domain for quantiles based on data
	for (var i = 0; i < points.features.length; ++i) {
	dichteById.set(points.features[i].properties.name, +points.features[i].properties.dichte);
	}
	quantile.domain(dichteById.values());

	// create a set of nodes for dorling cartogram
	var nodes = points.features.map(function(d) {
	var point = proj(d.geometry.coordinates);
	return {
	x: point[0], y: point[1],
	//x0: point[0], y0: point[1],
	r: radius(d.properties.pop_est),
	n: d.properties.name
	}
	});

	// render cartogram
	renderBubbles(nodes);
	});

	</script>