cfergus · October 19, 2012 22:11
diff --git a/index.html b/index.html
 <!DOCTYPE html>
 <html>
 <head>

 <script type="text/javascript" src="http://d3js.org/d3.v2.js"></script>
 <script type="text/javascript" src="https://raw.github.com/cfergus/d3-plugins/master/sankey/sankey.js"></script>

 <title>Sankey Diagram</title>
 <style>

 #chart {
  height: 500px;
 }

 .node rect {
  cursor: move;
  fill-opacity: .9;
  shape-rendering: crispEdges;
 }

 .node text {
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
 }

 .link {
  fill: none;
  stroke: #000;
  stroke-opacity: .2;
 }


 .cycleLink {
  fill: none;
  stroke: #300;
  stroke-opacity: .2;
 }

 .cycleLink:hover {
  stroke-opacity: .5;
 }

 .link:hover {
  stroke-opacity: .5;
 }

 </style>
 </head>
 <body>

 <p>Reasonable Chart Below</p>

 <p id="chart"></p>

 <script>

 var margin = {top: 1, right: 1, bottom: 6, left: 1},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

 var formatNumber = d3.format(",.0f"),
    format = function(d) { return formatNumber(d) + " tuples"; },
    color = d3.scale.category20();

 var svg = d3.select("#chart").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

 var sankey = d3.sankey()
    .nodeWidth(15)
    .nodePadding(10)
    .size([width, height]);

 var path = sankey.link();

 function createChart( energy ) {
  sankey
      .nodes(energy.nodes)
      .links(energy.links)
      .layout(32);

  var link = svg.append("g").selectAll(".link")
      .data(energy.links)
    .enter().append("path")
      .attr("class", function(d) { return (d.causesCycle ? "cycleLink" : "link") })
      .attr("d", path)
      .style("stroke-width", function(d) { return Math.max(1, d.dy); })
      .sort(function(a, b) { return b.dy - a.dy; });

  link.append("title")
      .text(function(d) { return d.source.name + " -> " + d.target.name + "\n" + format(d.value); });

  var node = svg.append("g").selectAll(".node")
      .data(energy.nodes)
    .enter().append("g")
      .attr("class", "node")
      .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
    .call(d3.behavior.drag()
      .origin(function(d) { return d; })
      .on("dragstart", function() { this.parentNode.appendChild(this); })
      .on("drag", dragmove));

  node.append("rect")
      .attr("height", function(d) { return d.dy; })
      .attr("width", sankey.nodeWidth())
      .style("fill", function(d) { return d.color = color(d.name.replace(/ .*/, "")); })
      .style("stroke", function(d) { return d3.rgb(d.color).darker(2); })
    .append("title")
      .text(function(d) { return d.name + "\n" + format(d.value); });

  node.append("text")
      .attr("x", -6)
      .attr("y", function(d) { return d.dy / 2; })
      .attr("dy", ".35em")
      .attr("text-anchor", "end")
      .attr("transform", null)
      .text(function(d) { return d.name; })
    .filter(function(d) { return d.x < width / 2; })
      .attr("x", 6 + sankey.nodeWidth())
      .attr("text-anchor", "start");

  function dragmove(d) {
    d3.select(this).attr("transform", "translate(" + d.x + "," + (d.y = Math.max(0, Math.min(height - d.dy, d3.event.y))) + ")");
    sankey.relayout();
    link.attr("d", path);
  }
  
 };


 var energyData = {"nodes":[
 {"name":"A"},
 {"name":"B"},
 {"name":"C"},
 {"name":"D"},
 {"name":"E"},
 {"name":"F"},
 {"name":"G"},
 ],
 "links":[
 {"source":0,"target":1,"value":2},
 {"source":1,"target":2,"value":4},
 {"source":2,"target":3,"value":30},
 {"source":2,"target":1,"value":5}, // Looper
 {"source":4,"target":2,"value":5},
 {"source":4,"target":5,"value":5},
 {"source":5,"target":6,"value":5}
 ]}

 createChart( energyData )
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>

	<script type="text/javascript" src="http://d3js.org/d3.v2.js"></script>
	<script type="text/javascript" src="https://raw.github.com/cfergus/d3-plugins/master/sankey/sankey.js"></script>

	<title>Sankey Diagram</title>
	<style>

	#chart {
	height: 500px;
	}

	.node rect {
	cursor: move;
	fill-opacity: .9;
	shape-rendering: crispEdges;
	}

	.node text {
	pointer-events: none;
	text-shadow: 0 1px 0 #fff;
	}

	.link {
	fill: none;
	stroke: #000;
	stroke-opacity: .2;
	}


	.cycleLink {
	fill: none;
	stroke: #300;
	stroke-opacity: .2;
	}

	.cycleLink:hover {
	stroke-opacity: .5;
	}

	.link:hover {
	stroke-opacity: .5;
	}

	</style>
	</head>
	<body>

	<p>Reasonable Chart Below</p>

	<p id="chart"></p>

	<script>

	var margin = {top: 1, right: 1, bottom: 6, left: 1},
	width = 960 - margin.left - margin.right,
	height = 500 - margin.top - margin.bottom;

	var formatNumber = d3.format(",.0f"),
	format = function(d) { return formatNumber(d) + " tuples"; },
	color = d3.scale.category20();

	var svg = d3.select("#chart").append("svg")
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	var sankey = d3.sankey()
	.nodeWidth(15)
	.nodePadding(10)
	.size([width, height]);

	var path = sankey.link();

	function createChart( energy ) {
	sankey
	.nodes(energy.nodes)
	.links(energy.links)
	.layout(32);

	var link = svg.append("g").selectAll(".link")
	.data(energy.links)
	.enter().append("path")
	.attr("class", function(d) { return (d.causesCycle ? "cycleLink" : "link") })
	.attr("d", path)
	.style("stroke-width", function(d) { return Math.max(1, d.dy); })
	.sort(function(a, b) { return b.dy - a.dy; });

	link.append("title")
	.text(function(d) { return d.source.name + " -> " + d.target.name + "\n" + format(d.value); });

	var node = svg.append("g").selectAll(".node")
	.data(energy.nodes)
	.enter().append("g")
	.attr("class", "node")
	.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
	.call(d3.behavior.drag()
	.origin(function(d) { return d; })
	.on("dragstart", function() { this.parentNode.appendChild(this); })
	.on("drag", dragmove));

	node.append("rect")
	.attr("height", function(d) { return d.dy; })
	.attr("width", sankey.nodeWidth())
	.style("fill", function(d) { return d.color = color(d.name.replace(/ .*/, "")); })
	.style("stroke", function(d) { return d3.rgb(d.color).darker(2); })
	.append("title")
	.text(function(d) { return d.name + "\n" + format(d.value); });

	node.append("text")
	.attr("x", -6)
	.attr("y", function(d) { return d.dy / 2; })
	.attr("dy", ".35em")
	.attr("text-anchor", "end")
	.attr("transform", null)
	.text(function(d) { return d.name; })
	.filter(function(d) { return d.x < width / 2; })
	.attr("x", 6 + sankey.nodeWidth())
	.attr("text-anchor", "start");

	function dragmove(d) {
	d3.select(this).attr("transform", "translate(" + d.x + "," + (d.y = Math.max(0, Math.min(height - d.dy, d3.event.y))) + ")");
	sankey.relayout();
	link.attr("d", path);
	}

	};


	var energyData = {"nodes":[
	{"name":"A"},
	{"name":"B"},
	{"name":"C"},
	{"name":"D"},
	{"name":"E"},
	{"name":"F"},
	{"name":"G"},
	],
	"links":[
	{"source":0,"target":1,"value":2},
	{"source":1,"target":2,"value":4},
	{"source":2,"target":3,"value":30},
	{"source":2,"target":1,"value":5}, // Looper
	{"source":4,"target":2,"value":5},
	{"source":4,"target":5,"value":5},
	{"source":5,"target":6,"value":5}
	]}

	createChart( energyData )
	</script>
	</body>
	</html>