russdb/.block

## .block
license: gpl-3.0

## README.md

      
    Raw
  

              README.md
            
          
    The area of each circle in this symbol map is proportional to the population of the associated state.
forked from mbostock's block: Symbol Map

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

.states {
  fill: #ccc;
  stroke: #fff;
}

.symbol {
  fill: steelblue;
  fill-opacity: .8;
  stroke: #fff;
}

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

var width = 960,
    height = 500;

var radius = d3.scale.sqrt()
    .domain([0, 1e6])
    .range([0, 10]);

var path = d3.geo.path();

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

queue()
    .defer(d3.json, "https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/us.json")
    .defer(d3.json, "us-state-centroids.json")
    .await(ready);

function ready(error, us, centroid) {
  if (error) throw error;

  svg.append("path")
      .attr("class", "states")
      .datum(topojson.feature(us, us.objects.states))
      .attr("d", path);

  svg.selectAll(".symbol")
      .data(centroid.features.sort(function(a, b) { return b.properties.population - a.properties.population; }))
    .enter().append("path")
      .attr("class", "symbol")
      .attr("d", path.pointRadius(function(d) { return radius(d.properties.population); }));
}

</script>

## us-state-centroids.json

      
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              us-state-centroids.json
            
          
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	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	.states {
	fill: #ccc;
	stroke: #fff;
	}

	.symbol {
	fill: steelblue;
	fill-opacity: .8;
	stroke: #fff;
	}

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

	var width = 960,
	height = 500;

	var radius = d3.scale.sqrt()
	.domain([0, 1e6])
	.range([0, 10]);

	var path = d3.geo.path();

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

	queue()
	.defer(d3.json, "https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/us.json")
	.defer(d3.json, "us-state-centroids.json")
	.await(ready);

	function ready(error, us, centroid) {
	if (error) throw error;

	svg.append("path")
	.attr("class", "states")
	.datum(topojson.feature(us, us.objects.states))
	.attr("d", path);

	svg.selectAll(".symbol")
	.data(centroid.features.sort(function(a, b) { return b.properties.population - a.properties.population; }))
	.enter().append("path")
	.attr("class", "symbol")
	.attr("d", path.pointRadius(function(d) { return radius(d.properties.population); }));
	}

	</script>
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