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<title>Adjusting your charts interactively - Line chart</title>
<meta name="keywords" content="rgraph html5 canvas chart adjusting docs " />
<meta name="description" content="Documentation about adjusting your charts - Line chart" />
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<script src="../libraries/RGraph.common.adjusting.js" ></script>
<script src="../libraries/RGraph.line.js" ></script>
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window.onload = function (e)
{
var line = new RGraph.Line('myc', [45,74,84,85,45,35,65,68,87,97,45,34,12], [15,14,12,16,18,19,14,12,74,84,95,65,35]);
line.Set('chart.labels', ['Kev','Matt','Rich','Dave','Iggy','Polly','Fiona','Fred','Pete','Lou','Fred','Bob']);
line.Set('chart.ylabels.inside', true);
line.Set('chart.linewidth', 2);
line.Set('chart.hmargin', 10);
line.Set('chart.shadow', true);
if (!RGraph.isOld()) {
line.Set('chart.adjustable', true);
}
line.Set('chart.title', 'An adjustable line chart');
line.Set('chart.title.vpos', 0.5);
line.Draw();
}
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<a href="../index.html">RGraph: HTML5 Javascript charts library</a>
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<a href="./index.html">Documentation</a>
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<a href="adjusting.html">Adjusting charts interactively</a>
>
Line chart
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<h1>Adjusting <span>your charts interactively - Line chart</span></h1>
<script>
if (RGraph.isOld()) {
document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer does not natively support the HTML5 canvas tag, so if you want to see the charts, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the RGraph Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag.</div>');
}
</script>
<p>
The Line chart can be adjusted by dragging the line(s) up and down. By using the RGraph registry -
<i>RGraph.Registry.Get('chart.adjusting.line.myc')</i> - you can get the details of the adjustment
(replace <i>myc</i> with the ID of your canvas). This is an array consisting of:
<ul>
<li>The chart object</li>
<li>The index of the point in the data series</li>
<li>A two element array consisting of the original coordinates of the point that is being adjusted</li>
<li>The index of the data series that contains the point being adjusted</li>
</ul>
</p>
<canvas id="myc" width="1000" height="250">[No canvas support]</canvas>
<pre class="code">
<script>
window.onload = function (e)
{
var line = new RGraph.Line('myc', [45,74,84,85,45,35,65,68,87,97,45,34,12], [15,14,12,16,18,19,14,12,74,84,95,65,35]);
line.Set('chart.labels', ['Kev','Matt','Rich','Dave','Iggy','Polly','Fiona','Fred','Pete','Lou','Fred','Bob']);
line.Set('chart.ylabels.inside', true);
line.Set('chart.linewidth', 2);
line.Set('chart.hmargin', 10);
line.Set('chart.shadow', true);
line.Set('chart.adjustable', true);
line.Set('chart.title', 'An adjustable line chart');
line.Set('chart.outofbounds', true);
line.Draw();
RGraph.AddCustomEventListener(line, 'onadjustend', function (obj) {p(RGraph.Registry.Get('chart.adjusting.line.myc'));});
}
</script>
</pre>
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