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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 17 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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New datagrid in v6.21
In version 6.21 a new datagrid object has been added. This makes it easy to add static or dynamic data tables to your pages. It can be used whether you use the canvas or SVG libraries or entirely standalone.

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Download
Get the latest version of RGraph (version 6.21, 10th April 2025) 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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HOWTO: Turning a label into a link

Prior to version 6.18 doing this involved a significant effort and a not-insubstantial amount of code to achieve. However since version 6.18 was made available it has become as simple as adding an anchor tag (<a>) around your label. The target attribute is also supported so you can stipulate that the link opens in a new window if you want it to. As well as the labels you can also give links in the title, subtitle, any custom text, key labels etc. Here's some sample code for a Pie chart that uses links in the labels:

>script<
    new RGraph.SVG.Pie({
        id: 'chart-container',
        data: [4,8,6,5,3,4,6,8],
        options: {
            labels:[
                    '<a href="https://www.google.com#q=richard" target="_blank">Richard</a>',
                    '<a href="https://www.google.com#q=jimmy" target="_blank">Jimmy</a>',
                    '<a href="https://www.google.com#q=apollo" target="_blank">Apollo</a>',
                    '<a href="https://www.google.com#q=davey" target="_blank">Davey</a>',
                    '<a href="https://www.google.com#q=craig" target="_blank">Craig</a>',
                    '<a href="https://www.google.com#q=alex" target="_blank">Alex</a>',
                    '<a href="https://www.google.com#q=terry" target="_blank">Terry</a>',
                    '<a href="https://www.google.com#q=june" target="_blank">June</a>'
                ],
                title: '<a href="https://www.google.com#q=scores" target="_blank">User scores</a>',
                titleOffsety: -9
        }
    }).draw();
>/script<