[dygraphs.git] / tests / dygraph-many-points-benchmark.html

<html>
  <head>
    <title>Benchmarking for Plots with Many Points</title>
    <!--[if IE]>
    <script type="text/javascript" src="../excanvas.js"></script>
    <![endif]-->
    <script type="text/javascript" src="../strftime/strftime-min.js"></script>
    <script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
    <script type="text/javascript" src="../dygraph-canvas.js"></script>
    <script type="text/javascript" src="../dygraph.js"></script>
  </head>
  <body>
    <p>Plot which can be easily generated with different numbers of points for
       benchmarking/profiling and improving performance of dygraphs.</p>    
    <p>Number of points:
       <input type="text" id="num_points_input" size="20"
              onchange="updatePlot();"></p>
    <p>Number of series:
       <input type="text" id="num_series_input" size="20"
              onchange="updatePlot();"></p>
    <p>Roll period (in points):
      <input type="text" id="roll_period_input" size="20"
              onchange="updatePlot();"></p>
    <br>
    <br>
    <div id="plot"></div>
    <div id="message"></div>

    <script type="text/javascript">
      var plot;

      updatePlot = function() {
        document.getElementById('message').innerHTML = "";
        var plotDiv = document.getElementById('plot');
        plotDiv.innerHTML = 'Redrawing...';
        var numPoints =
            parseInt(document.getElementById('num_points_input').value);
        var numSeries =
            parseInt(document.getElementById('num_series_input').value);

        var data = [];
        var xmin = 0.0;
        var xmax = 2.0 * Math.PI;
        var adj = .5;
        var delta = (xmax - xmin) / (numPoints - 1);

        for (var i = 0; i < numPoints; ++i) {
          var x = xmin + delta * i;
          var elem = [ x ];
          for (var j = 0; j < numSeries; j++) {
            var y = Math.sin(x + (j * adj));
            elem.push(y);
          }
          data[i] = elem;
        }
        var labels = [ "x" ];
        for (var j = 0; j < numSeries; j++) {
          labels.push("sin(x + " + (j*adj) + ")");
        }
        var rollPeriod = parseInt(
            document.getElementById('roll_period_input').value);
        var opts = {labels: labels, rollPeriod: rollPeriod};
        var start = new Date();
        plot = new Dygraph(plotDiv, data, opts);
        var end = new Date();
        document.getElementById('message').innerHTML =
            "completed in " + (end - start) + " milliseconds.";
      };

      document.getElementById('num_points_input').value = '100';
      document.getElementById('num_series_input').value = '1';
      document.getElementById('roll_period_input').value = '1';
      updatePlot();
    </script>
  </body>
</html>
Commit	Line	Data
15b00ba8 JB	1	<html>
	2	<head>
	3	<title>Benchmarking for Plots with Many Points</title>
	4	<!--[if IE]>
	5	<script type="text/javascript" src="../excanvas.js"></script>
	6	<![endif]-->
	7	<script type="text/javascript" src="../strftime/strftime-min.js"></script>
	8	<script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
	9	<script type="text/javascript" src="../dygraph-canvas.js"></script>
	10	<script type="text/javascript" src="../dygraph.js"></script>
	11	</head>
	12	<body>
	13	<p>Plot which can be easily generated with different numbers of points for
	14	benchmarking/profiling and improving performance of dygraphs.</p>
	15	<p>Number of points:
	16	<input type="text" id="num_points_input" size="20"
	17	onchange="updatePlot();"></p>
09c17553 RK	18	<p>Number of series:
	19	<input type="text" id="num_series_input" size="20"
	20	onchange="updatePlot();"></p>
15b00ba8 JB	21	<p>Roll period (in points):
	22	<input type="text" id="roll_period_input" size="20"
	23	onchange="updatePlot();"></p>
	24	<br>
	25	<br>
	26	<div id="plot"></div>
09c17553	27	<div id="message"></div>
15b00ba8 JB	28
	29	<script type="text/javascript">
	30	var plot;
	31
	32	updatePlot = function() {
09c17553	33	document.getElementById('message').innerHTML = "";
15b00ba8 JB	34	var plotDiv = document.getElementById('plot');
	35	plotDiv.innerHTML = 'Redrawing...';
	36	var numPoints =
	37	parseInt(document.getElementById('num_points_input').value);
09c17553 RK	38	var numSeries =
	39	parseInt(document.getElementById('num_series_input').value);
	40
15b00ba8 JB	41	var data = [];
	42	var xmin = 0.0;
	43	var xmax = 2.0 * Math.PI;
09c17553	44	var adj = .5;
15b00ba8 JB	45	var delta = (xmax - xmin) / (numPoints - 1);
	46
	47	for (var i = 0; i < numPoints; ++i) {
	48	var x = xmin + delta * i;
09c17553 RK	49	var elem = [ x ];
	50	for (var j = 0; j < numSeries; j++) {
	51	var y = Math.sin(x + (j * adj));
	52	elem.push(y);
	53	}
	54	data[i] = elem;
	55	}
	56	var labels = [ "x" ];
	57	for (var j = 0; j < numSeries; j++) {
	58	labels.push("sin(x + " + (j*adj) + ")");
15b00ba8	59	}
15b00ba8 JB	60	var rollPeriod = parseInt(
15b00ba8 JB	61	document.getElementById('roll_period_input').value);
09c17553 RK	62	var opts = {labels: labels, rollPeriod: rollPeriod};
09c17553 RK	63	var start = new Date();
15b00ba8	64	plot = new Dygraph(plotDiv, data, opts);
09c17553 RK	65	var end = new Date();
	66	document.getElementById('message').innerHTML =
	67	"completed in " + (end - start) + " milliseconds.";
15b00ba8 JB	68	};
	69
	70	document.getElementById('num_points_input').value = '100';
09c17553	71	document.getElementById('num_series_input').value = '1';
15b00ba8 JB	72	document.getElementById('roll_period_input').value = '1';
	73	updatePlot();
	74	</script>
	75	</body>
	76	</html>