<!--
    Thank you for inspecting this page! If you find some issues, let me know!
    Library     : pip install d3blocks
    Github      : https://d3blocks.github.io/d3blocks/pages/html/Heatmap.html
	References  : d3-graph-gallery.com
 -->

<!DOCTYPE html>
<html class="d3heatmap">
<meta charset="utf-8">
<title>"$TITLE$"</title>
<style>


.d3heatmap body {
  background: #fcfcfa;
  color: #333;
  font-family: "PT Serif", serif;
  margin: 1em auto 4em auto;
  position: relative;
  width: $WIDTH_DROPDOWN$px;
}

.d3heatmap header,
.d3heatmap footer,
.d3heatmap aside,
.d3heatmap h1,
.d3heatmap h2,
.d3heatmap h3,
.d3heatmap h4 {
  font-family: "PT Sans", sans-serif;
}

.d3heatmap h1,
.d3heatmap h2,
.d3heatmap h3,
.d3heatmap h4 {
  color: #000;
}

.d3heatmap header,
.d3heatmap footer {
  color: #636363;
}

h1 {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: -1px;
  margin: .3em 0 .1em 0;
}

h2 {
  margin-top: 2em;
}

h1, h2 {
  text-rendering: optimizeLegibility;
}

h2 a[name],
h2 a[id] {
  color: #ccc;
  right: 100%;
  padding: 0 .3em;
  position: absolute;
}

header,
footer {
  font-size: small;
}

.d3heatmap header aside,
.d3heatmap footer aside {
  float: left;
  margin-right: .5em;
}

.d3heatmap header aside:after,
.d3heatmap footer aside:after {
  padding-left: .5em;
  content: "/";
}

footer {
  margin-top: 8em;
}

h1 ~ aside {
  font-size: small;
  right: 0;
  position: absolute;
  width: 180px;
}

.attribution {
  font-size: small;
  margin-bottom: 2em;
}

body > p, li > p {
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}

body > p {
  width: $WIDTH$px;
}

body > blockquote {
  width: 640px;
}

blockquote q {
  display: block;
  font-style: oblique;
}

ul {
  padding: 0;
}

li {
  width: 690px;
  margin-left: 30px;
}

a {
  color: steelblue;
}

a:not(:hover) {
  text-decoration: none;
}

pre, code, textarea {
  font-family: "Menlo", monospace;
}

code {
  line-height: 1em;
}

textarea {
  font-size: 100%;
}

body > pre {
  border-left: solid 2px #ccc;
  padding-left: 18px;
  margin: 2em 0 2em -20px;
}

.html .value,
.javascript .string,
.javascript .regexp {
  color: #756bb1;
}

.html .tag,
.css .tag,
.javascript .keyword {
  color: #3182bd;
}

.comment {
  color: #636363;
}

.html .doctype,
.javascript .number {
  color: #31a354;
}

.html .attribute,
.css .attribute,
.javascript .class,
.javascript .special {
  color: #e6550d;
}

svg {
  font: 10px sans-serif;
}

.axis path, .axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}

sup, sub {
  line-height: 0;
}

q:before {
  content: "�";
}

q:after {
  content: "�";
}

blockquote q {
  line-height: 1.5em;
  display: inline;
}

blockquote q:before,
blockquote q:after {
  content: "";
}

.background {
  fill: #eee;
}

line {
  stroke: #fff;
}

text.active {
  fill: $STROKE$;
}

</style>
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</script>


<h1><i>$TITLE$</i></h1>

<aside style="margin-top:80px;">
<p>Order: <select id="order">
  <option value="name">by Name</option>
  <option value="count">by Frequency</option>
  <option value="cluster">by Clustering</option>
</select>

<p>Use the drop-down menu to reorder the matrix and explore the data.
</aside>

<script>

var margin = {top: 80, right: 0, bottom: 10, left: 80},
    width = $WIDTH$,
    height = $HEIGHT$;

var x = d3.scale.ordinal().rangeBands([0, width]),
    z = d3.scale.linear().domain([0, 4]).clamp(true),
    c = d3.scale.category10().domain(d3.range(10));

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

//Read the data from url
//d3.json("https://bost.ocks.org/mike/miserables/miserables.json", function(data) {
//d3.json("$DATA_PATH$", function(data) {


//Store data in variable
var data = 
	$DATA_COMES_HERE$

//Store data in variable
//var data = 
//    {
//      "nodes":
//          [
//              {"name":"Name A","cluster":1},
//              {"name":"Name B","cluster":2},
//              {"name":"Name C","cluster":2},
//              {"name":"Name D","cluster":3},
//              ],
//          "links":
//          [
//              {"source":0,"target":1,"value":1},
//              {"source":2,"target":2,"value":1},
//              {"source":3,"target":1,"value":1},
//          ]
//      }

  var matrix = [],
      nodes = data.nodes,
      n = nodes.length;

  // Compute index per node.
  nodes.forEach(function(node, i) {
    node.index = i;
    node.count = 0;
    matrix[i] = d3.range(n).map(function(j) { return {x: j, y: i, z: 0}; });
  });

  // Convert links to matrix; count character occurrences.
  data.links.forEach(function(link) {
    matrix[link.source][link.target].z += link.value;
    matrix[link.target][link.source].z += link.value;
    matrix[link.source][link.source].z += link.value;
    matrix[link.target][link.target].z += link.value;
    nodes[link.source].count += link.value;
    nodes[link.target].count += link.value;
  });

  // Precompute the orders.
  var orders = {
    name: d3.range(n).sort(function(a, b) { return d3.ascending(nodes[a].name, nodes[b].name); }),
    count: d3.range(n).sort(function(a, b) { return nodes[b].count - nodes[a].count; }),
    cluster: d3.range(n).sort(function(a, b) { return nodes[b].cluster - nodes[a].cluster; })
  };

  // The default sort order.
  x.domain(orders.name);

  svg.append("rect")
      .attr("class", "background")
      .attr("width", width)
      .attr("height", height);

  var row = svg.selectAll(".row")
      .data(matrix)
    .enter().append("g")
      .attr("class", "row")
      .attr("transform", function(d, i) { return "translate(0," + x(i) + ")"; })
      .each(row);

  row.append("line")
      .attr("x2", width);

  row.append("text")
      .attr("x", -6)
      .attr("y", x.rangeBand() / 2)
      .attr("dy", ".32em")
      .attr("text-anchor", "end")
      .text(function(d, i) { return nodes[i].name; });

  var column = svg.selectAll(".column")
      .data(matrix)
    .enter().append("g")
      .attr("class", "column")
      .attr("transform", function(d, i) { return "translate(" + x(i) + ")rotate(-90)"; });

  column.append("line")
      .attr("x1", -width);

  column.append("text")
      .attr("x", 6)
      .attr("y", x.rangeBand() / 2)
      .attr("dy", ".32em")
      .attr("text-anchor", "start")
      .text(function(d, i) { return nodes[i].name; });

  function row(row) {
    var cell = d3.select(this).selectAll(".cell")
        .data(row.filter(function(d) { return d.z; }))
      .enter().append("rect")
        .attr("class", "cell")
        .attr("x", function(d) { return x(d.x); })
        .attr("width", x.rangeBand())
        .attr("height", x.rangeBand())
        .style("fill-opacity", function(d) { return z(d.z); })
        .style("fill", function(d) { return nodes[d.x].cluster == nodes[d.y].cluster ? c(nodes[d.x].cluster) : null; })
        .on("mouseover", mouseover)
        .on("mouseout", mouseout);
  }

  function mouseover(p) {
    d3.selectAll(".row text").classed("active", function(d, i) { return i == p.y; });
    d3.selectAll(".column text").classed("active", function(d, i) { return i == p.x; });
  }

  function mouseout() {
    d3.selectAll("text").classed("active", false);
  }

  d3.select("#order").on("change", function() {
    clearTimeout(timeout);
    order(this.value);
  });

  function order(value) {
    x.domain(orders[value]);

    var t = svg.transition().duration(2500);

    t.selectAll(".row")
        .delay(function(d, i) { return x(i) * 4; })
        .attr("transform", function(d, i) { return "translate(0," + x(i) + ")"; })
      .selectAll(".cell")
        .delay(function(d) { return x(d.x) * 4; })
        .attr("x", function(d) { return x(d.x); });

    t.selectAll(".column")
        .delay(function(d, i) { return x(i) * 4; })
        .attr("transform", function(d, i) { return "translate(" + x(i) + ")rotate(-90)"; });
  }

  var timeout = setTimeout(function() {
    order("cluster");
    d3.select("#order").property("selectedIndex", 2).node().focus();
  }, 5000);

//});

</script>

<p>$DESCRIPTION$
