I have posted this question in StackOverflow, I am hurry to the solution, so I post question here again.
Assume I have an UIImageView in ViewController's view, and this UIImageView contains an image. For example, that is a car image, and car's head directs to the north in default. Then, I want to do some rotation and movement for that char(actually for UIImageView). I use CGAffineTransformRotate function to rotate it CGAffineTransform newTransform = CGAffineTransformRotate(_ImageView.transform, angle); Then assign values to tx and ty of newTransform respectively. That's it. But values to tx and ty is in UIImageView's coordinate system and that system won't be rotated even UIImageView rotated. My question is: Is there any easy way to get the value of tx and ty so that we could keep UIImageView move straightforward? Even the direction of image's head has been changed. -- Jingwei Xu ICS Group State Key Laboratory for Novel Software Technology Department of Computer Science and Technology Nanjing University Addr: 163 Xianlin Road, Nanjing 210046, P. R. China _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
