D3 Examples - Sankey from FrameNet csv with d3.js

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<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>Cause_motion Frame</title>
<style>
​
.node rect {
  cursor: move;
  fill-opacity: .9;
  shape-rendering: crispEdges;
}
​
body {
  font-family: Helvetica, sans-serif;
}
​
.node text {
  font-family: Helvetica, sans-serif;
  font-size: 10pt;
  pointer-events: none;
  text-shadow: 0 1px 0 #fff;
}
​
h1 {
  text-align: center;
}
​
.link {
  fill: none;
  stroke: #000;
  stroke-opacity: .1;
}
​
.link:hover {
  stroke-opacity: .25;
  stroke: #114;
}
​
</style>
<body>
​
<h1>Cause_motion Frame [Old]</h1>
​
<p id="chart">
​
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="sankey.js"></script>
<!--<script src="https://d3js.org/d3.v4.js"></script>-->
<!--<script src="https://unpkg.com/d3-sankey@0"></script>-->
<script>
​
var units  = "Annotation";
​
var margin = {top: 10, right: 10, bottom: 10, left: 10},
    width  = 800  - margin.left - margin.right,
    height = 600 - margin.top  - margin.bottom;
​
var formatNumber = d3.format(",.0f"),    // zero decimal places
    format = function(d) {
      return formatNumber(d) + " " + units + (d > 1 ? "s" : "");
    },
    color  = d3.scale.category20();
​
// append the svg canvas to the page
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 + ")");
​
// Set the sankey diagram properties
var sankey = d3.sankey()
    .nodeWidth(12)
    .nodePadding(10)
    .size([width, height]);
​
var path = sankey.link();
​
var Node = function(id, fe, gf) {
  return { name: id, FE: fe, GF: gf };
};
​
var eq = function(n1, n2) {
  return n1.name == n2.name;
};
​
// load the data 
d3.csv("sankey.csv", function(error, data) {
// d3.csv("ExtTDep+None.csv", function(error, data) {
​
​
    //set up graph in same style as original example but empty
  graph = {"nodes" : [], "links" : []};
​
  graph.nodes = d3.merge(data.map(function (d) {
        return [Node(d.source_id, d.source_FE, d.source_GF),
                Node(d.target_id, d.target_FE, d.target_GF)];
        }))
        .sort(function (n1, n2) { 
          return d3.ascending(n1.name, n2.name); 
        })
        .reduceRight(function (ns, n) {
          if (ns.length > 0 && eq(n, ns[0]))
            return ns;
          else
            return [n].concat(ns);
        }, []);
​
  var nodeMap = d3.map(graph.nodes, function (n) { return n.name; });
​
//    console.log('nodes:', graph.nodes);
//    console.log('nodeMap:', nodeMap);
​
//   var totalLen = d3.sum(data, function (d) { 
//     return +d.value; })
​
  graph.links = data.map(function (d) {
    return {
      "source": nodeMap.get(d.source_id),
      "target": nodeMap.get(d.target_id),
      "value":  +d.count
    };
  });
​
//   console.log('links:', graph.links);
​
  sankey
    .nodes(graph.nodes)
    .links(graph.links)
    .layout(32);
​
// add in the links
  var link = svg.append("g").selectAll(".link")
      .data(graph.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; });
​
// add the link titles
  link.append("title")
      .text(function(d) {
        var s = d.source,
            t = d.target;
        return  s.GF  + ": " + s.FE + " ⟶ "
               + t.GF + ": " + t.FE + "\n"
               + format(d.value);
      });
​
// add in the nodes
  var node = svg.append("g").selectAll(".node")
                .data(graph.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));
​
// add the rectangles for the nodes
  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.GF + ': ' + d.FE + "\n" + format(d.value); });
​
// add in the title for the nodes
  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.GF + ': ' + d.FE; })
      .filter(function(d) { return d.x < width / 2; })
      .attr("x", 6 + sankey.nodeWidth())
      .attr("text-anchor", "start");
​
// the function for moving the nodes
  function dragmove(d) {
    d3.select(this)
      .attr("transform", "translate("
                         + (d.x = Math.max(0, Math.min(width - d.dx, d3.event.x)))
                         + ","
                         + (d.y = Math.max(0, Math.min(height - d.dy, d3.event.y)))
                         + ")");
    sankey.relayout();
    link.attr("d", path);
  }
});
​
</script>
​
</body>
</html>
​
    