instant.html

---
layout: default
---

<p>Each series' current value with a min and max.</p>

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

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

  var c = new CLACK.Chart(
    document.getElementById('chartContainer'), {
      axes: false,
      renderer: new CLACK.InstantRenderer()
    }
  );


  var series = 4;
  var points = 30;

  var currentDate = new Date();

  var colors = d3.scale.category10();

  var context = c.getContext('default');
  context.showRangeAxis = false;
  context.showRangeGrid = false;
  context.showDomainAxis = false;
  context.showDomainGrid = false;

  // 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', {
      name: 'Series ' + j,
      x: exes,
      y: whys,
      label: 'foobar ' + j,
      color: colors(j)
    });
  }
  // console.timeEnd("generatechart");

  c.draw();

  var x = points;
  var addAPoint = function() {
    for(var j = 0; j <= series; j++) {
      var y = Math.floor(Math.random() * 50);
      // console.time('redraw');
      c.addToSeries('default', j, [x], [(j + 1) * Math.sin(2 * Math.PI * j + x)]);

      c.draw();
      // console.timeEnd('redraw');
      x += 1;
    }
    setTimeout(addAPoint,1000);
  }
  setTimeout(addAPoint,1000);
});
</script>