Problem with rotate circle

Question

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I want to rotate circle follows my finger's path. If I move my finger more fast, then the circle must rotate fast. If I move my finger slowly, the circle must slow. Also circle's movement must smooth. How can I implement this? Please give me any help.

4 circles are individual images. – bTagTiger Sep 14 '11 at 02:26 — bTagTiger, Sep 14 '11 at 02:26

score 0 · Answer 1 · answered Sep 15 '11 at 14:35

0

If you use UIPanGestureRecognizer, you can get Velocity property of recognizer and after it you can use its value in your rotation code (glRotate or smth else) to correct angle.

answered Sep 15 '11 at 14:35

Vlad Tsepelev

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Problem with rotate circle

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