Polar Area

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.

These are the customisation options specific to Polar Area charts. These options are merged with the global chart default options, and form the options of the chart.

Name	Type	Default	Description
`startAngle`	`Number`		Starting angle to draw arcs for the first item in a dataset.
`animation.animateRotate`	`Boolean`	`true`	If true, the chart will animate in with a rotation animation. This property is in the `options.animation` object.
`animation.animateScale`	`Boolean`	`true`	If true, will animate scaling the chart from the center outwards.

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.