ios - Rotate view from anchor swift -

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in application, calculating bmi of user based on height , weight. based on bmi value animating needle. issue needle moves off center , rotates.

code:

ivpointer.layer.anchorpoint = cgpoint(x: 0, y: 0.5)  // have changed values still not working let angle = double((value * double.pi)/180) var transform = cgaffinetransform.identity.rotated(by: cgfloat(angle))


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