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i am developing an application for iPhone, and i need some help to solve this difficult problem.

I am working with the device compass, from where i get the angle where the iPhone is oriented.

I need to check what points are on a angle view(oriented with the compass) from the current location.

diagram

I have no idea how to make it, i have been thinking all the afternoon. Any consideration is apreciated. Thanks!!!!

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    The picture is not really helpful. Could you comment on it?2011-02-14
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    the points are coordinates on a map. The current Position is where the user is... What part is confused to you?? Thanks!!2011-02-14

2 Answers 2