ios - How do I make shape rotate on its axis? -

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the hexagon rotates, wont stay in place , rotate. need change in order spin clockwise once every single time button clicked.

    shape6 = cashapelayer()     view.layer.addsublayer(shape6)     shape6.opacity = 0.5     shape6.linewidth = 2     shape6.linejoin = kcalinejoinmiter     shape6.strokecolor = uicolor(hue: 0.786, saturation: 0.79, brightness: 0.53, alpha: 1.0).cgcolor     shape6.fillcolor = uicolor(hue: 0, saturation: 0, brightness: 0, alpha: 0).cgcolor      path6 = uibezierpath()     path6.movetopoint(cgpointmake(35,430))     path6.addlinetopoint(cgpointmake(80, 300))     path6.closepath()     shape6.path = path6.cgpath   @ibaction func ispin(sender: anyobject) {     uiview.animatewithduration(1.0, animations: ({         self.shape1.transform = catransform3dmakerotation(30, 150, 400, 20)         self.shape2.transform = catransform3dmakerotation(30, 150, 400, 20)         self.shape3.transform = catransform3dmakerotation(30, 150, 400, 20)         self.shape4.transform = catransform3dmakerotation(30, 150, 400, 20)         self.shape5.transform = catransform3dmakerotation(30, 150, 400, 20)         self.shape6.transform = catransform3dmakerotation(30, 150, 400, 20)     }))  }

try setting anchor point of shape shape6:

shape6.anchorpoint = cgpointmake(0.5, 0.5)

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