On Jan 5, 2012, at 10:49 AM, Eric E. Dolecki wrote: > I'd like to calculate the angle from a center point of a view to a touch > point. > > 0º behind top of screen, 180º being bottom of screen. > > Calculating from touchesMoved. > > Any pointers? Checking Google again.
This is basically just the theta calculation of a convert to polar coordinates. man atan2 should give you what you need to know. -- David Duncan _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
