d3histoheat.html

---
layout: default
---

<p>D3-based, many time series merged into one visualization. Each x "column" is a histogram of Y values, shown as a heatmap. A bit slower than <a href="/histoheat.html">the canvas version</a>.  Give it a few seconds.</p>

<div id="chartContainer" style="display: inline-block; position: relative"></div>

<script>
$(document).ready(function() {

  var c = new CLACK.Chart(
    document.getElementById('chartContainer'), {
      width: 500,
      height: 350,
      renderer: new CLACK.D3HistogramHeatMapRenderer()
    }
  );

  var series = 2000;
  var points = 3000;

  var currentDate = new Date();

  var colors = d3.scale.category10();

  console.time("generatechart");
  for(var j = 0; j <= series; j++) {
    var exes = [];
    var whys = [];
    for(var i = 0; i <= points; i++) {
      exes.push(i);
      whys.push((j + 1) * Math.sin(2 * Math.PI * j + i + currentDate.getSeconds()));
    }
    c.addSeries('default', {
      x: exes,
      y: whys,
      label: 'foobar ' + j,
      color: colors(j)
    });
  }
  console.timeEnd("generatechart");

  console.time("drawchart");
  c.draw();
  console.timeEnd("drawchart");
});
</script>