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2014/10/15 ¤U¤È 10:15:04
iphone Programming Glossary: transformationCustom animation for pushing a UIViewController http://stackoverflow.com/questions/1406037/custom-animation-for-pushing-a-uiviewcontroller Is there a way to do that manually heinrich In the sample code a function is called all 0.03 seconds that updates the transformation of the view. Unfortunately when pushing a UIViewController I am not able to resize the frame of the view ... am I iphone..
iPhone Curl Left and Curl Right transitions http://stackoverflow.com/questions/1625375/iphone-curl-left-and-curl-right-transitions question It's possible to do curls in any of the four directions by using a container view. Set the container view's transformation to the angle you want and then do the curl by adding your view to the container view not your app's main view which does..
resize all subview in scrollViewDidZoom http://stackoverflow.com/questions/19856928/resize-all-subview-in-scrollviewdidzoom question When you are zooming in the scroll view the zoomView mainView in your case is not resized just an affine transformation applied on it's layer CALayer . For example in case of 1.2 zoomScale it is 1.2 0 0 1.2 0 0 . So it's bounds is not changed..
FFmpeg on iPhone - Modifying Video Orientation http://stackoverflow.com/questions/2208522/ffmpeg-on-iphone-modifying-video-orientation h264 videos loaded with FFmpeg on the iPhone 3GS. The problem is any videos recorded in Portrait orientation have a transformation matrix applied to them causing them to display rotated 90 degrees counter clock. From what I understand thus far I just..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew One to convert the square into a trapezoid. p1 p2 p1 p2 p3 p4 p3 p4' Another to the vertical direction. A naive transformation rule is y c x' x p1.x ”——————†p1.x p1.y c y' y where c is the y coordinate of the intersection point of the lines.. y coordinate of the intersection point of the lines joining p1 and p3 and p2 and p4. Now notice the x y factor in the transformation. This indicates such a transform is not linear. Therefore CATransform3D cannot perform this as a 2D transform either. However..
Rotating image using objective C http://stackoverflow.com/questions/4010779/rotating-image-using-objective-c Am I doing anything wrong Thanks iphone objective c share improve this question Instead of creating the transformation from the angle that your getting from the touch try incrementing totalRadians by its difference from the new angle and then..
UINavigationController custom animation [duplicate] http://stackoverflow.com/questions/4869787/uinavigationcontroller-custom-animation Is there a way to do that manually heinrich In the sample code a function is called all 0.03 seconds that updates the transformation of the view. Unfortunately when pushing a UIViewController I am not able to resize the frame of the view ... am I iphone..
http://stackoverflow.com/questions/5014176/mpmoviewplayercontroller-fullscreen-playback-rotation-with-underlying-uiviewcont rotated back to portrait. The only way to rotate back to portrait is to use private API which is no no. 2 View layer transformation I also did try to listen for MPMoviePlayerDidEnterFullscreenNotification and MPMoviePlayerWillExitFullscreenNotification.. I can assign whatever to transform property but it does nothing. It does nothing is not quite correct. When I apply transformation during rotation I can see effect of this transformation when I switch back from fullscreen to embedded video playback. 3.. nothing. It does nothing is not quite correct. When I apply transformation during rotation I can see effect of this transformation when I switch back from fullscreen to embedded video playback. 3 Separate UIWindow I did not test this yet but I've found..
UIView vertical flip animation http://stackoverflow.com/questions/5392629/uiview-vertical-flip-animation uiview core animation share improve this question As of iOS 5.0 there's no need to write your own Core Animation transformation to do vertical flips. Just use UIKit's UIViewAnimationOptionTransitionFlipFromTop and UIViewAnimationOptionTransitionFlipFromBottom..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload is already correct if self.imageOrientation UIImageOrientationUp return self We need to calculate the proper transformation to make the image upright. We do it in 2 steps Rotate if Left Right Down and then flip if Mirrored. CGAffineTransform transform..
iPhone FFT with Accelerate framework vDSP http://stackoverflow.com/questions/6358764/iphone-fft-with-accelerate-framework-vdsp 0 i n i originalReal i float i 1 Look at the real signal as an interleaved complex vector by casting it. Then call the transformation function vDSP_ctoz to get a split complex vector which for a real signal divides into an even odd configuration. vDSP_ctoz..
Most efficient way to draw part of an image in iOS http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios you can transform your image freely by setting transform property in 2D scaling rotation translation . If you need 3D transformation you still can use CALayer with masksToBounds property but using CALayer will give you very little extra performance usually..
How can I rotate an UIImageView by 20 degrees? http://stackoverflow.com/questions/852863/how-can-i-rotate-an-uiimageview-by-20-degrees if I need to rotate an UIImageView I have an image which I want to rotate by 20 degrees. The Apple Docs talk about an transformation Matrix but that sounds incredible difficult. Are there any helpful methods or functions to achieve that iphone cocoa touch.. helpful methods or functions to achieve that iphone cocoa touch uikit uiimageview share improve this question A transformation matrix is not incredibly difficult. It's quite simple if you use the supplied functions imgView.transform CGAffineTransformMakeRotation..
Transforming a rectangle image into a quadrilateral using a CATransform3D http://stackoverflow.com/questions/9470493/transforming-a-rectangle-image-into-a-quadrilateral-using-a-catransform3d a quadrilateral Q . I want to transform this image so that it is fits the quadrilateral Q. Photoshop calls this transformation Distort. But according to the source of this quadrilateral the perspective of the image moving in space it is in fact the..
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