How to Get the reverse path of a UIBezierPath

Question

self.myPath=[UIBezierPath bezierPathWithArcCenter:center 
                                           radius:200 
                                       startAngle:0 
            


        

Answer 1

Use bezierPathByReversingPath. From the docs (iOS 6.0+ only):

Creates and returns a new bezier path object with the reversed contents of the current path.

so to reverse your path, you'd just:

UIBezierPath* aPath = [UIBezierPath bezierPathWithArcCenter:center
                                                     radius:200
                                                 startAngle:0
                                                   endAngle:180
                                                  clockwise:YES];
self.myPath = [aPath bezierPathByReversingPath];