A nested Donut chart progress bar

Summary: A nested Donut chart using the RGraph.Activity class.

[No canvas support]

This is an example of the new (in version 5.28) RGraph.Activity class. (You can read the documentation page for the Activity meter here. Previously to get this sort of chart a large amount of custom code was necessary but now the chart has been given its own class - which is in the RGraph.activity.js file.

The colors and quantity of the rings is specified by you and the icons are configurable (or can be replaced with text if you prefer. The chart can be animated using the grow effect, adjusted and can now also have tooltips.

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.activity.js"></script>

Put this where you want the chart to show up:

<canvas id="cvs" width="450" height="450">
    [No canvas support]
</canvas>

This is the code that generates the chart: