armollica/.block

## .block
height: 12300

## README.md

      
    Raw
  

              README.md
            
          
    The number of people in New York faceted by self-reported ancestry. Click
the "Open" button to the right to see it fullscreen.
Data from the U.S. Census Bureau

  
## index.html
<html>
<head>
<link href='https://fonts.googleapis.com/css?family=Raleway:300' rel='stylesheet' type='text/css'>
<style>

html {
	font-family: 'Raleway', sans-serif;
}

.map {
	display: inline-block;
	position: relative;
	padding-top: 50px;
}

.map h3 {
	text-align: center;
	position: absolute;
	top: 10px;
	left: 10px;
	width: 200px;
	margin-top: 0px;
}

</style>
</head>
<body>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script>

var width = 300,
		height = width;

var fontSizeScale = d3.scale.pow().exponent(0.15)
	.domain([0, 1000000])
	.range([0, 50]);

var areaScale = d3.scale.linear()
	.domain([0, 1000])
	.range([0, width]);

var projection = d3.geo.mercator()
	.center([-73.98, 40.70])
	.scale(30000)
	.translate([width/2, height/2]);

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

var container = d3.select("body").append("div")
	.attr("class", "container");

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

	console.log(nyc);

	var ancestries = nyc.tracts.properties.ancestries;

	ancestries.sort(function(a, b) {
		return d3.ascending(a.ancestry_name, b.ancestry_name);
	});

	var maps = container.selectAll(".map")
			.data(ancestries)
		.enter().append("div")
			.attr("class", "map");

	maps.append("h3")
		.style("font-size", function(d) {
			return fontSizeScale(d.people / d.ancestry_name.length);
		})
		.text(function(d) { return d.ancestry_name; });

	//// Draw maps
	// Do it this way so it starts rendering maps sequentially
	// instead of holding off and rendering only after all maps
	// are ready. There's got to be a better way...

	var canvases = maps.append("canvas")
		.attr("width", width)
		.attr("height", height)[0];

	var timer = d3.timer(function(t) {
		var canvas = canvases.shift();

		if (canvas !== undefined) {
			var context = canvas.getContext("2d"),
					ancestry_id = canvas.__data__.ancestry_id;
			path.context(context);
			draw(context, ancestry_id);
		}
		else { return true;	}

	});

	function draw(context, ancestry_id) {

		// Draw the boroughs
		context.lineWidth = 0.2;
		context.beginPath();
		path(nyc.boroughs);
		context.stroke();

		// Draw the bubbles
		context.save();
		context.globalAlpha = 0.7;
		context.lineWidth = 0.1;
		nyc.tracts.features.forEach(function(d) {
			var p = projection(d.geometry.coordinates),
					people = d.properties.ancestry[ancestry_id] || 0,
					area = areaScale(people),
					radius = Math.sqrt(area / Math.PI);

			context.beginPath();
			context.arc(p[0], p[1], radius, 0, 2*Math.PI);
			context.stroke();
		});
		context.restore();
	}
});
</script>
</body>
</html>

## nyc.json

      
Display the source blob

    
Display the rendered blob

    
    Raw
  

              nyc.json
            
          
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## thumbnail.png

      
    Raw
  

              thumbnail.png
	<html>
	<head>
	<link href='https://fonts.googleapis.com/css?family=Raleway:300' rel='stylesheet' type='text/css'>
	<style>

	html {
	font-family: 'Raleway', sans-serif;
	}

	.map {
	display: inline-block;
	position: relative;
	padding-top: 50px;
	}

	.map h3 {
	text-align: center;
	position: absolute;
	top: 10px;
	left: 10px;
	width: 200px;
	margin-top: 0px;
	}

	</style>
	</head>
	<body>
	<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
	<script>

	var width = 300,
	height = width;

	var fontSizeScale = d3.scale.pow().exponent(0.15)
	.domain([0, 1000000])
	.range([0, 50]);

	var areaScale = d3.scale.linear()
	.domain([0, 1000])
	.range([0, width]);

	var projection = d3.geo.mercator()
	.center([-73.98, 40.70])
	.scale(30000)
	.translate([width/2, height/2]);

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

	var container = d3.select("body").append("div")
	.attr("class", "container");

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

	console.log(nyc);

	var ancestries = nyc.tracts.properties.ancestries;

	ancestries.sort(function(a, b) {
	return d3.ascending(a.ancestry_name, b.ancestry_name);
	});

	var maps = container.selectAll(".map")
	.data(ancestries)
	.enter().append("div")
	.attr("class", "map");

	maps.append("h3")
	.style("font-size", function(d) {
	return fontSizeScale(d.people / d.ancestry_name.length);
	})
	.text(function(d) { return d.ancestry_name; });

	//// Draw maps
	// Do it this way so it starts rendering maps sequentially
	// instead of holding off and rendering only after all maps
	// are ready. There's got to be a better way...

	var canvases = maps.append("canvas")
	.attr("width", width)
	.attr("height", height)[0];

	var timer = d3.timer(function(t) {
	var canvas = canvases.shift();

	if (canvas !== undefined) {
	var context = canvas.getContext("2d"),
	ancestry_id = canvas.__data__.ancestry_id;
	path.context(context);
	draw(context, ancestry_id);
	}
	else { return true; }

	});

	function draw(context, ancestry_id) {

	// Draw the boroughs
	context.lineWidth = 0.2;
	context.beginPath();
	path(nyc.boroughs);
	context.stroke();

	// Draw the bubbles
	context.save();
	context.globalAlpha = 0.7;
	context.lineWidth = 0.1;
	nyc.tracts.features.forEach(function(d) {
	var p = projection(d.geometry.coordinates),
	people = d.properties.ancestry[ancestry_id] \|\| 0,
	area = areaScale(people),
	radius = Math.sqrt(area / Math.PI);

	context.beginPath();
	context.arc(p[0], p[1], radius, 0, 2*Math.PI);
	context.stroke();
	});
	context.restore();
	}
	});
	</script>
	</body>
	</html>