Polar Area Chart

This type of chart is often useful when we want to show a comparison data similar to a pie chart, but also show a scale of values for context.

config setup

The following options can be included in a polar area chart dataset to configure options for that specific dataset.

All these values, if undefined, fallback to the associated elements.arc.* options.

The following values are supported for borderAlign.

• (default)
• 'inner'

When 'center' is set, the borders of arcs next to each other will overlap. When 'inner' is set, it is guaranteed that all the borders do not overlap.

The interaction with each arc can be controlled with the following properties:

These are the customisation options specific to Polar Area charts. These options are looked up on access, and form together with the the options of the chart.

The polar area chart uses the radialLinear scale. Additional configuration is provided via the scale.

We can also change these default values for each PolarArea type that is created, this object is available at Chart.overrides.polarArea. Changing the global options only affects charts created after the change. Existing charts are not changed.

For example, to configure all new polar area charts with animateScale = false you would do:

You also need to specify an array of labels so that tooltips appear correctly for each slice.