About

RGraph is a JavaScript charts library based on HTML5 SVG and canvas. RGraph is mature (over 18 years old) and has a wealth of features making it an ideal choice to use for showing charts on your website.

Version 7.20

Version 7.20 (released in June 2026) is the latest version of RGraph and the major change in this version is an update to the default values of properties making for better looking charts without having to set any properties. Read more about this and other changes in the changelog.

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Download

Get the latest version of RGraph (version 7.20, 9th June 2026) 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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Latest forum posts

These are the latest support forum posts that have been posted or updated.

16th June, Rachel
I have a question about the 3D Bar chart

12th June, Marco
Should I use SVG or canvas for the charts on my website?

9th June, Richard
New version of RGraph: version 7.20

3rd June, Patrick
Question about installing RGraph

1st June, Ouja
How do I add a click event to a bar in my Bar chart?

Support forum »

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.

The SVG Bar chart wave effect is not working with the responsive function

Posted by Harry at 17:16 on Monday 18th January 2021 [link]

I'm trying to draw a Bar chart with the wave effect and also the responsive function.

The Bar chart with wave effect by itself works OK - however when I add the responsive function it behaves slightly differently - like its being drawn first and then animating.

Heres an example that shows it happening:

bar = new RGraph.SVG.Bar({
    id: 'chart1',
    data: [5,9,6,3,2,6,7],
    options: {
        backgroundGridBorder: false,
        backgroundGridVlines: false,
        xaxisLabels: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
        marginBottom: 100,
        xaxis: false,
        yaxis: false
    }
}).wave().responsive([
    {maxWidth: null, width: 750, height: 300, options: {marginInner: 25, textSize: 14}, callback: function () {},css: {}},
    {maxWidth: 900, width: 500, height: 200, options: {marginInner: 15, textSize: 10}, callback: function () {},css: {}}
]);

Posted by Richard at 18:13 on Monday 18th January 2021 [link]

Interesting. This appears to be due to multiple redraws - one by the responsive function and another by the wave effect.

After a while playing around with this I've come up with this solution, which configures the chart and then after a small delay calls the wave effect. Initially the color is set to transparent and then set to red after the delay and just before the effect starts.

bar = new RGraph.SVG.Bar({
    id: 'cc',
    data: [5,9,6,3,2,6,7],
    options: {
        backgroundGridBorder: false,
        backgroundGridVlines: false,
        xaxisLabels: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
        marginBottom: 100,
        xaxis: false,
        yaxis: false,
        colors:['transparent']
    }
}).responsive([
    {maxWidth: null, width: 750, height: 300, options: {marginInner: 25, textSize: 14}, callback: function () {},css: {}},
    {maxWidth: 900, width: 500, height: 200, options: {marginInner: 15, textSize: 10}, callback: function () {},css: {}}
]);

// Set the color to red and call the animation
setTimeout(function ()
{
    bar.set('colors', ['red']);
    RGraph.SVG.clear();
    bar.wave();
}, 250);

There's a codepen here which shows this in action:

https://codepen.io/rgraph/pen/JjRxZZv

Posted by Richard at 15:36 on Tuesday 19th January 2021 [link]

OK, I've just thought of a better way than using the setTimeout() function - using the callback function in the responsive configuration.

The updated code is:

bar = new RGraph.SVG.Bar({
    id: 'cc',
    data: [5,9,6,3,2,6,7],
    options: {
        backgroundGridBorder: false,
        backgroundGridVlines: false,
        xaxisLabels: ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'],
        marginBottom: 100,
        xaxis: false,
        yaxis: false
    }
}).responsive([
    {maxWidth: null, width: 750, height: 300, options: {marginInner: 25, textSize: 14}, callback: myAnimate},
    {maxWidth: 900, width: 500, height: 200, options: {marginInner: 15, textSize: 10}, callback: myAnimate}
]);

function myAnimate (obj)
{
    if (!window.callback_function_run) {
        RGraph.SVG.clear();
        obj.wave();

        window.callback_function_run = true
    }
}

And an updated codepen is here:

https://codepen.io/rgraph/pen/dyprGQW

[Replies are closed]