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 show charts on your website.

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Get the latest version of RGraph (version 6.17) from the download page. There's also older versions available, minified files and links to cdnjs.com hosted libraries.

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RGraph can be used for free under the GPL or if that doesn't suit your situation there's an inexpensive (£99) commercial license available.

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New version of RGraph: 5.28

Posted by Richard at 09:22 on Monday 1st March 2021 [link]
Happy release day! Both of you! The time has come, after two whole months, to bring out a new version of RGraph - version 5.28.

Not much has changed in this release but there are three new canvas based meters available - the Activity meter, the Horseshoe meter, and the Segmented donut. The Activity meter can show multiple values whilst the other two can both show a single value. In a forthcoming version one or more of these may well be available in SVG versions.

All of the new meters have different aesthetics and the Activity meter can be further customised to look how the old Radial Progress meter looked. There's a demo of this in the download archive (link below).

Other changes include the addition of new, and renames of, existing properties for labels, additions to the default colors of the Bipolar chart, improvements to tooltip positioning for the Bar, Bipolar, Horizontal Bar and SVG Bar charts and the addition of a CSS class for the X axis labels (this may help when trying to retrieve the label DOM nodes with the API function document.getElementsByClassName()).

You can read the full list of changes on the changelog page (https://www.rgraph.net/changelog.html) and you can download RGraph as usual from the download page (link below).

What's next for RGraph? Well - I'm planning to update the version number of RGraph from 5.28 straight up to 6.00 for the next release.

There won't be any massive ground-breaking changes - it will be a significant version increment because from the next release I plan to start using JavaScript ES6 features in the RGraph code.

This does not mean, however, that I'll be going back through all of the libraries and altering things. I plan to simply start making use of the new language features in new code. Some of the new features of ES6 that look interesting are:

Array and object destructuring
Block scoping for variables
Arrow functions
Rest parameters
for/of loops

You can get the latest RGraph archive from the download page:


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