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.net Powerful JavaScript charts
About
RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 15 years old) and has a wealth of features making it an ideal choice to use for showing charts on your website.

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Download
Get the latest version of RGraph (version 6.18, 1st June 2024) from the download page. You can read the changelog here. There's also older versions available, minified files and links to cdnjs.com hosted libraries.

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License
RGraph can be used for free under the GPL or if that doesn't suit your situation there's an inexpensive (£129) commercial license available.

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A pink Pie chart

[No canvas support]

Another quite basic Pie chart that is predominantly a pinkish theme. All of the colors are defined using rgb values instead of hex values or named colors.

The linewidth is set to 2 so the resultant effect is a small amount of segment separation.

The labels are defined and the textSize option is enlarged slightly so that those labels are a little bit clearer.

It's quite a basic example of a Pie chart but the resulting aesthetic is quite nice. This goes to show that your charts don't need to be fancy to look good!


This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.pie.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" width="550" height="450">
    [No canvas support]
</canvas>
This is the code that generates the chart - it should be placed AFTER the canvas tag(s):
<script>
    // A pretty straight-forward Pie chart. The only thing to note here
    // really is the use of the linewidth property to create a small
    // segment separation effect. The default color for the stroke is
    // white so it just blends into the background of the page (the
    // default background color of the canvas tag is transparent).
    new RGraph.Pie({
        id: 'cvs',
        data: [3,7.9,2,10.3,11.1,1,63.9],
        options: {
            colors: [
                'rgb(51,102,204)',
                'rgb(220,57,18)',
                'rgb(255,153,0)',
                'rgb(16,150,24)',
                'rgb(153,0,153)',
                'rgb(0,153,198)',
                'rgb(221,68,119)'
            ],
            linewidth: 2,
            shadow: false,
            labels: ['3%','7.9%','2%','10.3%','11.1%','1%','62.9%'],
            textSize: 10,
            textColor: '#444'
        }
    }).draw();
</script>