[dygraphs.git] / tests / daylight-savings.html

<!DOCTYPE html>
<html>
  <head>
    <title>Daylight Savings</title>
    <!--
    For production (minified) code, use:
    <script type="text/javascript" src="dygraph-combined.js"></script>
    -->
    <script type="text/javascript" src="../dygraph-dev.js"></script>

    <style>
      body {
        max-width: 1024px;
      }
    </style>

  </head>
  <body>
    <h2>DST</h2>
    <p>This tests that tick marks don't break when the axis crosses into
    daylight savings time.</p>

    <div id="demodiv"></div>

    <p>The tick marks should all be on day boundaries or nice hours (6, 12, 18),
    rather than on odd time boundaries like 5, 11, 17 and 23.</p>

    <hr/>
    <div id="chart2"></div>
    <p>This chart shows a continuous line going across the "fall back" EST/EDT event. You may need to switch your computer's time zone to Eastern to see this. The x-axis tick marks go from 01:00 &rarr; 01:55 and then back to 01:00.</p>

    <hr/>
    <div id="chart3"></div>
    <p>This chart is analogous to the first, except at a "spring forward".</p>

    <hr/>
    <div id="chart4"></div>
    <p>This chart shows a continuous series which crosses a "spring forward". The x-axis ticks should skip from 1:55AM to 3:00AM.</p>

    <script type="text/javascript">
      g = new Dygraph(
              document.getElementById("demodiv"),
"Date/Time,Purchases\n" +
"2010-11-05 00:00:00,167082\n" +
"2010-11-06 00:00:00,168571\n" +
"2010-11-07 00:00:00,177796\n" +
"2010-11-08 00:00:00,165587\n" +
"2010-11-09 00:00:00,164380\n",
          {
            width: 1024
          }
          );

      // Generate data which crosses the EST/EDT boundary.
      var dst_data = [];
      var base_ms = 1383454200000;
      for (var x = base_ms; x < base_ms + 1000 * 60 * 80; x += 1000) {
        dst_data.push([new Date(x), x]);
      }

      g2 = new Dygraph(
              document.getElementById("chart2"),
              dst_data,
          { width: 1024, labels: ['Date', 'Value'] }
          );

      g3 = new Dygraph(
              document.getElementById("chart3"),
"Date/Time,Purchases\n" +
"2011-03-11 00:00:00,167082\n" +
"2011-03-12 00:00:00,168571\n" +
"2011-03-13 00:00:00,177796\n" +
"2011-03-14 00:00:00,165587\n" +
"2011-03-15 00:00:00,164380\n",
          {
            width: 1024,
            dateWindow: [1299989043119.4365, 1300080693627.4866]
          }
          );

      var base_ms_spring = 1299999000000;
      var dst_data_spring = [];
      for (var x = base_ms_spring; x < base_ms_spring + 1000 * 60 * 80; x += 1000) {
        dst_data_spring.push([new Date(x), x]);
      }

      g4 = new Dygraph(
          document.getElementById("chart4"),
          dst_data_spring,
          { width: 1024, labels: ['Date', 'Value'] }
      );

    </script>
</body>
</html>
Commit	Line	Data
	1	<!DOCTYPE html>
	2	<html>
	3	<head>
	4	<title>Daylight Savings</title>
	5	<!--
	6	For production (minified) code, use:
	7	<script type="text/javascript" src="dygraph-combined.js"></script>
	8	-->
	9	<script type="text/javascript" src="../dygraph-dev.js"></script>
	10
	11	<style>
	12	body {
	13	max-width: 1024px;
	14	}
	15	</style>
	16
	17	</head>
	18	<body>
	19	<h2>DST</h2>
	20	<p>This tests that tick marks don't break when the axis crosses into
	21	daylight savings time.</p>
	22
	23	<div id="demodiv"></div>
	24
	25	<p>The tick marks should all be on day boundaries or nice hours (6, 12, 18),
	26	rather than on odd time boundaries like 5, 11, 17 and 23.</p>
	27
	28	<hr/>
	29	<div id="chart2"></div>
	30	<p>This chart shows a continuous line going across the "fall back" EST/EDT event. You may need to switch your computer's time zone to Eastern to see this. The x-axis tick marks go from 01:00 → 01:55 and then back to 01:00.</p>
	31
	32	<hr/>
	33	<div id="chart3"></div>
	34	<p>This chart is analogous to the first, except at a "spring forward".</p>
	35
	36	<hr/>
	37	<div id="chart4"></div>
	38	<p>This chart shows a continuous series which crosses a "spring forward". The x-axis ticks should skip from 1:55AM to 3:00AM.</p>
	39
	40	<script type="text/javascript">
	41	g = new Dygraph(
	42	document.getElementById("demodiv"),
	43	"Date/Time,Purchases\n" +
	44	"2010-11-05 00:00:00,167082\n" +
	45	"2010-11-06 00:00:00,168571\n" +
	46	"2010-11-07 00:00:00,177796\n" +
	47	"2010-11-08 00:00:00,165587\n" +
	48	"2010-11-09 00:00:00,164380\n",
	49	{
	50	width: 1024
	51	}
	52	);
	53
	54	// Generate data which crosses the EST/EDT boundary.
	55	var dst_data = [];
	56	var base_ms = 1383454200000;
	57	for (var x = base_ms; x < base_ms + 1000 * 60 * 80; x += 1000) {
	58	dst_data.push([new Date(x), x]);
	59	}
	60
	61	g2 = new Dygraph(
	62	document.getElementById("chart2"),
	63	dst_data,
	64	{ width: 1024, labels: ['Date', 'Value'] }
	65	);
	66
	67	g3 = new Dygraph(
	68	document.getElementById("chart3"),
	69	"Date/Time,Purchases\n" +
	70	"2011-03-11 00:00:00,167082\n" +
	71	"2011-03-12 00:00:00,168571\n" +
	72	"2011-03-13 00:00:00,177796\n" +
	73	"2011-03-14 00:00:00,165587\n" +
	74	"2011-03-15 00:00:00,164380\n",
	75	{
	76	width: 1024,
	77	dateWindow: [1299989043119.4365, 1300080693627.4866]
	78	}
	79	);
	80
	81	var base_ms_spring = 1299999000000;
	82	var dst_data_spring = [];
	83	for (var x = base_ms_spring; x < base_ms_spring + 1000 * 60 * 80; x += 1000) {
	84	dst_data_spring.push([new Date(x), x]);
	85	}
	86
	87	g4 = new Dygraph(
	88	document.getElementById("chart4"),
	89	dst_data_spring,
	90	{ width: 1024, labels: ['Date', 'Value'] }
	91	);
	92
	93	</script>
	94	</body>
	95	</html>