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<title>Adjusting your charts interactively - VProgress bar</title>
<meta name="keywords" content="rgraph html5 canvas chart adjusting docs " />
<meta name="description" content="Documentation about adjusting your charts - VProgress bar" />
<meta property="og:title" content="RGraph: HTML5 Javascript charts library" />
<meta property="og:description" content="A chart library based on the HTML5 canvas tag" />
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<script src="../libraries/RGraph.common.core.js" ></script>
<script src="../libraries/RGraph.common.adjusting.js" ></script>
<script src="../libraries/RGraph.vprogress.js" ></script>
<!--[if lt IE 9]><script src="../excanvas/excanvas.original.js"></script><![endif]-->
<script>
window.onload = function (e)
{
var vprogress = new RGraph.VProgress('myc', 83, 100, 0);
vprogress.Set('chart.color', 'red');
vprogress.Set('chart.adjustable', RGraph.isOld() ? false : true);
vprogress.Set('chart.margin', 5);
vprogress.Set('chart.tickmarks.inner', true);
vprogress.Set('chart.label.inner', true);
vprogress.Set('chart.units.post', '%');
vprogress.Set('chart.gutter.right', 45);
vprogress.Draw();
RGraph.AddCustomEventListener(vprogress, 'onadjustbegin', function (obj) {document.getElementById("output").value += 'Value before adjustment: ' + obj.value + '\n';});
RGraph.AddCustomEventListener(vprogress, 'onadjustend', function (obj) {document.getElementById("output").value += 'Value after adjustment: ' + obj.value + '\n';});
}
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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>
>
VProgress bar
</div>
<h1>Adjusting <span>your charts interactively - VProgress bar</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>
<canvas id="myc" width="150" height="600" style="border: 1px dashed gray; float: left; margin-right: 5px">[No canvas support]</canvas>
<p>
Nothing pertinent is kept in the registry. If you wish to get the new value of the progress you can check
<i>obj.value</i>. If you want the value before the adjustment, you can check the value
with the <i>onadjustbegin</i> event (instead of the <i>onadjustend</i> event).
</p>
<textarea id="output" style="width: 500px; height: 200px" readonly></textarea>
<br clear="all" />
<pre class="code" style="float: left">
<script>
window.onload = function (e)
{
var vprogress = new RGraph.VProgress('myc', 83, 100, 0);
vprogress.Set('chart.color', 'red');
vprogress.Set('chart.adjustable', true);
vprogress.Set('chart.margin', 5);
vprogress.Set('chart.tickmarks.inner', true);
vprogress.Set('chart.label.inner', true);
vprogress.Set('chart.units.post', '%');
vprogress.Set('chart.gutter.right', 45);
vprogress.Draw();
RGraph.AddCustomEventListener(vprogress, 'onadjustbegin', function (obj) {document.getElementById("output").value += 'Value before adjustment: ' + obj.value + '\n';});
RGraph.AddCustomEventListener(vprogress, 'onadjustend', function (obj) {document.getElementById("output").value += 'Value after adjustment: ' + obj.value + '\n';});
}
</script>
</pre>
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