[dygraphs.git] / tests / is-zoomed.html

<html>
  <head>
    <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
    <title>isZoomedIgnoresProgrammaticZoom Flag</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>
    <script type="text/javascript" src="data.js"></script>
  </head>
  <body>
    <h1 id="zoom">Determining Zoom</h1>
    <p>
      It is possible to detect whether a chart has been zoomed in either axis by the use of the <code>isZoomed</code> function.
      If called with no argument, it will report whether <em>either</em> axis has been zoomed.
      Alternatively it can be called with an argument of either <code>'x'</code> or <code>'y'</code> and it will report the status of just that axis.
    </p>
  
    <p>Here's a simple example using <code>drawCallback</code> to display the various zoom states whenever the chart is zoomed:</p>
  
    <div style="width:600px; text-align:center; font-weight: bold; font-size: 125%;">OUTPUT</div>
    <div style="width: 750px">
      <div style="float: right">
        <p>Zoomed: <span id="zoomed">False</span><p/>
        <p>Zoomed X: <span id="zoomedX">False</span><p/>
        <p>Zoomed Y: <span id="zoomedY">False</span><p/>
      </div>
      <div class="codeoutput" style="float:left;">
      <div id="zoomdiv"></div>
      <script type="text/javascript">
        new Dygraph(
  
        // containing div
        document.getElementById("zoomdiv"),
  
        // CSV or path to a CSV file.
        "Date,Value\n" +
        "2011-01-07,75\n" +
        "2011-01-08,70\n" +
        "2011-01-09,90\n" +
        "2011-01-10,30\n" +
        "2011-01-11,40\n" +
        "2011-01-12,60\n" +
        "2011-01-13,70\n" +
        "2011-01-14,40\n",
        {
          drawCallback: function(me, initial) {
          document.getElementById("zoomed").innerHTML = "" + me.isZoomed();
          document.getElementById("zoomedX").innerHTML = "" + me.isZoomed("x");
          document.getElementById("zoomedY").innerHTML = "" + me.isZoomed("y");
          }
        }
        );
      </script>
      </div>
    </div>
  
    <p>
      <div style="clear:both; width:600px; text-align:center; font-weight: bold; font-size: 125%;">HTML</div>

<pre>
  new Dygraph(

  // containing div
  document.getElementById(&quot;zoomdiv&quot;),

  // CSV or path to a CSV file.
  &quot;Date,Temperature\n&quot; +
  &quot;2011-01-07,75\n&quot; +
  &quot;2011-01-08,70\n&quot; +
  &quot;2011-01-09,90\n&quot; +
  &quot;2011-01-10,30\n&quot; +
  &quot;2011-01-11,40\n&quot; +
  &quot;2011-01-12,60\n&quot; +
  &quot;2011-01-13,70\n&quot; +
  &quot;2011-01-14,40\n&quot;,
  {
    drawCallback: function(me, initial) {
    document.getElementById(&quot;zoomed&quot;).innerHTML = &quot;&quot; + me.isZoomed();
    document.getElementById(&quot;zoomedX&quot;).innerHTML = &quot;&quot; + me.isZoomed(&quot;x&quot;);
    document.getElementById(&quot;zoomedY&quot;).innerHTML = &quot;&quot; + me.isZoomed(&quot;y&quot;);
    }
  }
  );
</pre>
    </p>
  
    <p>The <a href="tests/zoom.html">Tests for zoom operations</a> show a full example of this in action.</p>
  
    <h3>Programmatic Zoom</h3>
    <p>
      When a chart is programmatically zoomed by updating either the <code>dateWindow</code>
      or <code>valueRange</code> option, by default the zoomed flags are also updated correspondingly.
      It is possible to prevent this by specifying the <code>isZoomedIgnoreProgrammaticZoom</code> in the same
      call to the <code>updateOptions</code> method.
    </p>
    <p>
      The <a href="tests/is-zoomed-ignore-programmatic-zoom.html">is-zoomed-ignore-programmatic-zoom</a> test shows this in operation.
    </p>
  </body>
</html>
Commit	Line	Data
e5152598	1	<html>
36dfa958 DV	2	<head>
	3	<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9">
	4	<title>isZoomedIgnoresProgrammaticZoom Flag</title>
	5	<!--[if IE]>
	6	<script type="text/javascript" src="../excanvas.js"></script>
	7	<![endif]-->
	8	<script type="text/javascript" src="../strftime/strftime-min.js"></script>
	9	<script type="text/javascript" src="../rgbcolor/rgbcolor.js"></script>
	10	<script type="text/javascript" src="../dygraph-canvas.js"></script>
	11	<script type="text/javascript" src="../dygraph.js"></script>
	12	<script type="text/javascript" src="data.js"></script>
	13	</head>
	14	<body>
	15	<h1 id="zoom">Determining Zoom</h1>
	16	<p>
	17	It is possible to detect whether a chart has been zoomed in either axis by the use of the <code>isZoomed</code> function.
	18	If called with no argument, it will report whether <em>either</em> axis has been zoomed.
	19	Alternatively it can be called with an argument of either <code>'x'</code> or <code>'y'</code> and it will report the status of just that axis.
	20	</p>
	21
	22	<p>Here's a simple example using <code>drawCallback</code> to display the various zoom states whenever the chart is zoomed:</p>
	23
	24	<div style="width:600px; text-align:center; font-weight: bold; font-size: 125%;">OUTPUT</div>
	25	<div style="width: 750px">
	26	<div style="float: right">
	27	<p>Zoomed: <span id="zoomed">False</span><p/>
	28	<p>Zoomed X: <span id="zoomedX">False</span><p/>
	29	<p>Zoomed Y: <span id="zoomedY">False</span><p/>
	30	</div>
	31	<div class="codeoutput" style="float:left;">
	32	<div id="zoomdiv"></div>
	33	<script type="text/javascript">
	34	new Dygraph(
	35
	36	// containing div
	37	document.getElementById("zoomdiv"),
	38
	39	// CSV or path to a CSV file.
	40	"Date,Value\n" +
	41	"2011-01-07,75\n" +
	42	"2011-01-08,70\n" +
	43	"2011-01-09,90\n" +
	44	"2011-01-10,30\n" +
	45	"2011-01-11,40\n" +
	46	"2011-01-12,60\n" +
	47	"2011-01-13,70\n" +
	48	"2011-01-14,40\n",
	49	{
	50	drawCallback: function(me, initial) {
	51	document.getElementById("zoomed").innerHTML = "" + me.isZoomed();
	52	document.getElementById("zoomedX").innerHTML = "" + me.isZoomed("x");
	53	document.getElementById("zoomedY").innerHTML = "" + me.isZoomed("y");
	54	}
	55	}
	56	);
	57	</script>
	58	</div>
	59	</div>
	60
	61	<p>
	62	<div style="clear:both; width:600px; text-align:center; font-weight: bold; font-size: 125%;">HTML</div>
e5152598 NN	63
	64	<pre>
	65	new Dygraph(
	66
36dfa958 DV	67	// containing div
36dfa958 DV	68	document.getElementById("zoomdiv"),
e5152598	69
36dfa958 DV	70	// CSV or path to a CSV file.
	71	"Date,Temperature\n" +
	72	"2011-01-07,75\n" +
	73	"2011-01-08,70\n" +
	74	"2011-01-09,90\n" +
	75	"2011-01-10,30\n" +
	76	"2011-01-11,40\n" +
	77	"2011-01-12,60\n" +
	78	"2011-01-13,70\n" +
	79	"2011-01-14,40\n",
	80	{
	81	drawCallback: function(me, initial) {
	82	document.getElementById("zoomed").innerHTML = "" + me.isZoomed();
	83	document.getElementById("zoomedX").innerHTML = "" + me.isZoomed("x");
	84	document.getElementById("zoomedY").innerHTML = "" + me.isZoomed("y");
e5152598	85	}
36dfa958	86	}
e5152598 NN	87	);
e5152598 NN	88	</pre>
36dfa958 DV	89	</p>
	90
	91	<p>The <a href="tests/zoom.html">Tests for zoom operations</a> show a full example of this in action.</p>
	92
	93	<h3>Programmatic Zoom</h3>
	94	<p>
	95	When a chart is programmatically zoomed by updating either the <code>dateWindow</code>
	96	or <code>valueRange</code> option, by default the zoomed flags are also updated correspondingly.
	97	It is possible to prevent this by specifying the <code>isZoomedIgnoreProgrammaticZoom</code> in the same
	98	call to the <code>updateOptions</code> method.
	99	</p>
	100	<p>
	101	The <a href="tests/is-zoomed-ignore-programmatic-zoom.html">is-zoomed-ignore-programmatic-zoom</a> test shows this in operation.
	102	</p>
	103	</body>
e5152598	104	</html>