get the angle rotated

[abrpatel]

how would you get the angle rotated using the gesture recognizer.

i want to calculate the angle depending on the swipe gesture so that if, for example every time the user swipes 25 degrees a method is called. So if the user continues to swipe in one fluid motion 90 degrees the method is called at least three times.

Let me know if you can provide some insight on how i can do this using the one figure gesture

Thanks
Abhi