martgnz/.block

## .block
license: mit
border: none
height: 1096

## README.md

      
    Raw
  

              README.md
            
          
    Second part of the spam.js choropleth tutorial.
Creating a linear scale with ColorBrewer colors, filling the polygons with the scale according to the data.

  
## bcn.json

      
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              bcn.json
            
          
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## index.html
<!DOCTYPE html>
<meta charset="utf-8" />
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script src="https://d3js.org/topojson.v1.min.js"></script>
<script src="https://unpkg.com/rbush@1.4.3/rbush.js"></script>
<script src="https://unpkg.com/spamjs@1.1.0/spam.min.js"></script>

<script type='text/javascript'>
var color = d3.scale
  .linear()
  .domain([0.1, 0.18, 0.26, 0.33, 0.41])
  .range(["#ca0020", "#f4a582", "#f7f7f7", "#92c5de", "#0571b0"]);

d3.json("bcn.json", function(error, d) {
  topojson.presimplify(d);
  var map = new StaticCanvasMap({
    element: "body",
    data: [
      {
        features: topojson.feature(d, d.objects["bcn"]),
        static: {
          paintfeature: function(parameters, d) {
            parameters.context.fillStyle = color(d.properties.rate);
            parameters.context.fill();

            parameters.context.lineWidth = 0.5;
            parameters.context.strokeStyle = "rgba(0,0,0,0.2)";
            parameters.context.stroke();
          }
        }
      }
    ]
  });
  map.init();
});
</script>

## thumbnail.png

      
    Raw
  

              thumbnail.png
	<!DOCTYPE html>
	<meta charset="utf-8" />
	<body>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script src="https://d3js.org/topojson.v1.min.js"></script>
	<script src="https://unpkg.com/rbush@1.4.3/rbush.js"></script>
	<script src="https://unpkg.com/spamjs@1.1.0/spam.min.js"></script>

	<script type='text/javascript'>
	var color = d3.scale
	.linear()
	.domain([0.1, 0.18, 0.26, 0.33, 0.41])
	.range(["#ca0020", "#f4a582", "#f7f7f7", "#92c5de", "#0571b0"]);

	d3.json("bcn.json", function(error, d) {
	topojson.presimplify(d);
	var map = new StaticCanvasMap({
	element: "body",
	data: [
	{
	features: topojson.feature(d, d.objects["bcn"]),
	static: {
	paintfeature: function(parameters, d) {
	parameters.context.fillStyle = color(d.properties.rate);
	parameters.context.fill();

	parameters.context.lineWidth = 0.5;
	parameters.context.strokeStyle = "rgba(0,0,0,0.2)";
	parameters.context.stroke();
	}
	}
	}
	]
	});
	map.init();
	});
	</script>