i have been do moreCGAffineTransform. how to get current Uiview\'sangle? i want to d开发者_Python百科o something when angle==[M_PI/2 ~ M_PI]?CGFloat radians = atan2f(self.view.transform.b, self.view
I\'ve got two LatLon (latitude-longitude) objects which represent two locations on the surface of the globe. I want to find the angle (in radians) between the center of the earth and these two LatLon
I\'m using GDI+ in my application, and I need to use a rotated LinearGradientBrush to paint several rects in the exact same way.However, although I\'m calling the same code to fill each rect, the resu
I\'m simulating a physical object, using a mass spring system. By means of deltas and cross products, I can easily calulate the up, forward an开发者_运维技巧d side vectors.
I found this piece of C++ code on a forum that I can\'t fully understand. Since I don\'t have their library that performs matrix/vector math, I need to manually figure it out and replicate the functio
I need to get angle in radians.I have: CGFloat angle = asin(myImage.transform.b); This seems to be not working.I need to extract the angl开发者_开发问答e of \'myImage\' at any moment in time.How wou
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari
I\'m working in another iPhone App that uses AR, and I\'m creating my own framework, but I\'m having trouble trying to get the angle of a second coordinate relative to the current device position, any
I have already made CSS a lot of times, but did not work and a lot of glitches ... I will show picture - glitch:
Background: I have 8 images for every sprite in my bird\'s view JavaScript game, representing top, top-right, right, right-bottom etc., depending on the player\'s space ship speed.
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