How can I make the chart rotate completely, 360, 720 on a button click ?

[SatishBirajdar007]

The thing that I want to do is,

A "Spin" button is clicked
The pie chart starts rotating random 'n' times, and stops after sometime. And one slice is highlighted.
So question is, how can I make the chart rotate completely, 360, 720 on a button click ?

[SatishBirajdar007]

Was able to do with spin(duration: 3, fromAngle: 0, toAngle: 720)

[liuxuan30]

there are many ways, like rotating the UIView, or update the CTM matrix like CGAffineTransformRotate to rotate yourself.