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• 如何轮换一台电-和反锁,就像在一门电 s的ambi子中那样
原标题:how to rotate a pie chart clockwise and anti-clockwise as in roambi app in iphone sdk

我利用核心地皮图书馆绘制了地图。 但是,我想要像在罗比申请中那样,把皮图轮到明智和反锁定的方向。

任何人都能够告诉我,我如何能够这样做。

任何人的帮助将受到高度赞赏。

Thank s all, Monish.

问题回答
CGAffineTransformMakeRotation(degreesToRadians(M_PI * 90 / 180.0)); // clockwise 
CGAffineTransformMakeRotation(degreesToRadians(-M_PI * 90 / 180.0)); // anti-clockwise 




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