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<title>RGraph: HTML5 Javascript charts library - donut charts</title>
<meta name="keywords" content="rgraph html5 canvas example donut charts" />
<meta name="description" content="RGraph: HTML5 Javascript charts library - Donut charts examples" />
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<meta property="og:description" content="A charts library based on the HTML5 canvas tag" />
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<script src="../libraries/RGraph.pie.js" ></script>
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<script>
window.onload = function ()
{
var donut = new RGraph.Pie('donut1', [41,37,16,3,3]);
donut.Set('chart.variant', 'donut');
donut.Set('chart.linewidth', 5);
donut.Set('chart.strokestyle', 'white');
donut.Set('chart.title', "Browser share");
donut.Set('chart.key', ['MSIE 7 (41%)', 'MSIE 6 (37%)', 'Firefox (16%)', 'Safari (3%)', 'Other (3%)']);
donut.Set('chart.key.shadow', true);
donut.Set('chart.key.shadow.offsetx', 0);
donut.Set('chart.key.shadow.offsety', 0);
donut.Set('chart.key.shadow.blur', 15);
donut.Set('chart.key.shadow.color', '#ccc');
donut.Set('chart.key.position', 'graph');
donut.Set('chart.align', 'left');
donut.Draw();
function getGradient(obj, color)
{
var gradient = obj.context.createRadialGradient(obj.canvas.width / 2, obj.canvas.height / 2, 0, obj.canvas.width / 2, obj.canvas.height / 2, 200);
gradient.addColorStop(0, 'black');
gradient.addColorStop(0.5, color);
gradient.addColorStop(1, 'black');
return RGraph.isIE8() ? color : gradient;
}
var donut2 = new RGraph.Pie('donut2', [8,6,5,3,8,9,9,4]);
// Create the gradients
var gradient = getGradient(donut2, 'red');
var gradient2 = getGradient(donut2, 'green');
var gradient3 = getGradient(donut2, 'pink');
var gradient4 = getGradient(donut2, 'yellow');
var gradient5 = getGradient(donut2, 'grey');
var gradient6 = getGradient(donut2, 'cyan');
var gradient7 = getGradient(donut2, 'red');
var gradient8 = getGradient(donut2, '#ddd');
var gradient9 = getGradient(donut2, 'blue');
donut2.Set('chart.variant', 'donut');
donut2.Set('chart.labels', ['Flipper', 'Harry', 'Ben', 'Richard', 'Keith', 'Ben', 'George', 'Barry']);
donut2.Set('chart.title', "Sales figures for week 43");
donut2.Set('chart.gutter.left', 35);
donut2.Set('chart.gutter.right', 35);
donut2.Set('chart.strokestyle', 'rgba(0,0,0,0)');
donut2.Set('chart.colors', [gradient, gradient2, gradient3, gradient4, gradient5, gradient6, gradient7, gradient8, gradient9]);
donut2.Draw();
}
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<div id="breadcrumb">
<a href="../index.html">RGraph: HTML5 Javascript charts library</a>
>
<a href="./index.html">Examples</a>
>
Donut charts
</div>
<h1>RGraph: <span>HTML5 Javascript charts library</span> - Donut charts</h1>
<script>
if (RGraph.isIE8()) {
document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer 8 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>
<div>
<p>
Formerly the Donut chart was a separate class, though now it's a variant of the Pie chart. This means smaller downloads and
a much simpler implementation. Essentially it's a Pie chart with a big hole in the middle.
</p>
<div>
<ul>
<li><a href="../docs/pie.html">Pie charts API documentation</a></li>
</ul>
</div>
<div>
<canvas id="donut1" width="430" height="350">[No canvas support]</canvas>
<canvas id="donut2" width="450" height="350">[No canvas support]</canvas>
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