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.

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.

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.

Problem with the minimum value of a Semi-circular progress bar

Posted by milan at 22:25 on Wednesday 11th October 2023 [link]

Hello,

If I assign a minimum value other than 0 to a semicircular progress bar, entire bar disappears.
Any help regarding this?
Thanks!

Posted by Richard at 10:06 on Thursday 12th October 2023 [link]

Hmm, I thought the SCP handled negative values - evidently not! I'll fix it for you and get back to you (later on today hopefully).

Cheers.

Posted by Richard at 15:13 on Thursday 12th October 2023 [link]

OK I've updated the Semi-circular progress source file and you can get it here from GitHub:

https://raw.githubusercontent.com/heyesr/rgraph/main/libraries/RGraph.semicircularprogress.js

And here's some example source code:

new RGraph.SemiCircularProgress({
    id: 'cvs',
    min: -100,
    max: 100,
    value: -50,
    options: {
        radius: '-50',
        width: 50,
        labelsCenterSize: 120,
        labelsCenterUnitsPost: 'k',
        labelsCenterOffsety: 20,
        colorsStroke: 'transparent',
        backgroundGrid: true,
        scale: true,
        scaleLabelsCount: 20
    }
}).grow();

Posted by milan at 20:03 on Thursday 12th October 2023 [link]

Many thanks!

[Replies are closed]