briantjacobs/README.md

## README.md

      
    Raw
  

              README.md
            
          
    See

Altered Sankey plugin: https://github.com/briantjacobs/d3-plugins/tree/master/sankey
Blog post http://briantjacobs.com/d3-sankey-schema


## index.html
<!DOCTYPE html>
<html>

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <meta charset="utf-8">
  <title>Sankey Diagram</title>
  <style>
  body {font-family: sans-serif;}

  #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;
  }

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

  </style>
</head>

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

<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.4.2/d3.min.js"></script>
<script src="https://rawgithub.com/briantjacobs/d3-plugins/master/sankey/sankey.js"></script>
<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) + " TWh"; },
    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])
    .schema({
          id: "type_id",
          source: "fuel_origin",
          target: "fuel_dest",
          value: "val"
      });

var path = sankey.link();

//incomplete extract from
//http://bost.ocks.org/mike/sankey/energy.json
//http://www.decc.gov.uk/en/content/cms/tackling/2050/calculator_on/calculator_on.aspx"
var energy = {"nodes":[
  {"type_id": 12, "name":"Agricultural 'waste'"},
  {"type_id": 16, "name":"Bio-conversion"},
  {"type_id": 17, "name":"Liquid"},
  {"type_id": 10, "name":"Losses"},
  {"type_id": 19, "name":"Solid"},
  {"type_id": 13, "name":"Gas"},
  {"type_id": 14, "name":"Biofuel imports"}
  ],
  "links": [
  {"fuel_origin":12,"fuel_dest":16,"val":124.729},
  {"fuel_origin":16,"fuel_dest":17,"val":0.597},
  {"fuel_origin":16,"fuel_dest":10,"val":26.862},
  {"fuel_origin":16,"fuel_dest":19,"val":280.322},
  {"fuel_origin":16,"fuel_dest":13,"val":81.144},
  {"fuel_origin":14,"fuel_dest":17,"val":35}
  ]
};

  sankey
      .nodes(energy.nodes)
      .links(energy.links)
      .layout(32);

  var link = svg.append("g").selectAll(".link")
      .data(energy.links)
    .enter().append("path")
      .attr("class", "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.fuel_origin.name + " → " + d.fuel_dest.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) {console.log(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);
  }


</script>
</body></html>
	<!DOCTYPE html>
	<html>

	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<meta charset="utf-8">
	<title>Sankey Diagram</title>
	<style>
	body {font-family: sans-serif;}

	#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;
	}

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

	</style>
	</head>

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

	<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.4.2/d3.min.js"></script>
	<script src="https://rawgithub.com/briantjacobs/d3-plugins/master/sankey/sankey.js"></script>
	<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) + " TWh"; },
	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])
	.schema({
	id: "type_id",
	source: "fuel_origin",
	target: "fuel_dest",
	value: "val"
	});

	var path = sankey.link();

	//incomplete extract from
	//http://bost.ocks.org/mike/sankey/energy.json
	//http://www.decc.gov.uk/en/content/cms/tackling/2050/calculator_on/calculator_on.aspx"
	var energy = {"nodes":[
	{"type_id": 12, "name":"Agricultural 'waste'"},
	{"type_id": 16, "name":"Bio-conversion"},
	{"type_id": 17, "name":"Liquid"},
	{"type_id": 10, "name":"Losses"},
	{"type_id": 19, "name":"Solid"},
	{"type_id": 13, "name":"Gas"},
	{"type_id": 14, "name":"Biofuel imports"}
	],
	"links": [
	{"fuel_origin":12,"fuel_dest":16,"val":124.729},
	{"fuel_origin":16,"fuel_dest":17,"val":0.597},
	{"fuel_origin":16,"fuel_dest":10,"val":26.862},
	{"fuel_origin":16,"fuel_dest":19,"val":280.322},
	{"fuel_origin":16,"fuel_dest":13,"val":81.144},
	{"fuel_origin":14,"fuel_dest":17,"val":35}
	]
	};

	sankey
	.nodes(energy.nodes)
	.links(energy.links)
	.layout(32);

	var link = svg.append("g").selectAll(".link")
	.data(energy.links)
	.enter().append("path")
	.attr("class", "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.fuel_origin.name + " → " + d.fuel_dest.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) {console.log(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);
	}


	</script>
	</body></html>