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2014/10/15 ¤U¤È 10:13:39
iphone Programming Glossary: scalingHow can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path 0.3 fadeOutAnimation.fillMode kCAFillModeForwards fadeOutAnimation.removedOnCompletion NO Set up scaling CABasicAnimation resizeAnimation CABasicAnimation animationWithKeyPath @ bounds.size resizeAnimation..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally The image did get resized but the position is not at the top left. What is the best approach to scaling image imageView and how do I correct the position iphone objective c cocoa touch share improve this..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew An affine transform can always be decomposed into translations rotations shearing and scaling. They all map parallelograms into parallelograms which your transform does not. For your transform it..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel size. UIGraphicsBeginImageContextWithOptions..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca through the webkit text size adjust CSS property html webkit text size adjust none Prevent font scaling in landscape The use of this property is described further in the Safari Web Content Guide . share..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview A full example of this with code can be found here where I've implemented touch based rotation and scaling on a couple of CALayers based on an example by Bill Dudney. The newest version of the program at the..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom of autoreleases differently than on the device most often when threads are involved . The view scaling is an issue with UIScrollView I've run into though. During a pinch zooming event UIScrollView will take.. delegate method and apply a transform to it. This transform provides a smooth scaling of the view without having to redraw it each frame. At the end of the zoom operation your delegate method.. scale factor is. Since you've manually redrawn your view at the last scale factor it compounds the scaling which is what you're seeing. As a workaround I use a UIView subclass for my content view with the following..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path opacity fadeOutAnimation setToValue NSNumber numberWithFloat 0.3 fadeOutAnimation.fillMode kCAFillModeForwards fadeOutAnimation.removedOnCompletion NO Set up scaling CABasicAnimation resizeAnimation CABasicAnimation animationWithKeyPath @ bounds.size resizeAnimation setToValue NSValue valueWithCGSize CGSizeMake 40.0f imageFrame.size.height..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally imageView.frame frame.size.width 100 imageView.frame frame The image did get resized but the position is not at the top left. What is the best approach to scaling image imageView and how do I correct the position iphone objective c cocoa touch share improve this question Fixed easily once I found the documentation imageView.contentMode..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew share improve this question Not possible with CGAffineTransform. An affine transform can always be decomposed into translations rotations shearing and scaling. They all map parallelograms into parallelograms which your transform does not. For your transform it can be done in two steps. One to convert the square into a..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel size. UIGraphicsBeginImageContextWithOptions newSize NO 0.0 image drawInRect CGRectMake..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview the layer transform from scratch for each rotation. A full example of this with code can be found here where I've implemented touch based rotation and scaling on a couple of CALayers based on an example by Bill Dudney. The newest version of the program at the very bottom of the page implements this kind of perspective..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom within your code. I've seen the simulator handle the timing of autoreleases differently than on the device most often when threads are involved . The view scaling is an issue with UIScrollView I've run into though. During a pinch zooming event UIScrollView will take the view you specified in the viewForZoomingInScrollView.. UIScrollView will take the view you specified in the viewForZoomingInScrollView delegate method and apply a transform to it. This transform provides a smooth scaling of the view without having to redraw it each frame. At the end of the zoom operation your delegate method scrollViewDidEndZooming withView atScale will be called.. the transform of the content view to whatever the overall scale factor is. Since you've manually redrawn your view at the last scale factor it compounds the scaling which is what you're seeing. As a workaround I use a UIView subclass for my content view with the following methods defined void setTransformWithoutScaling CGAffineTransform..
UIView's frame, bounds, center, origin, when to use what? http://stackoverflow.com/questions/1071112/uiviews-frame-bounds-center-origin-when-to-use-what control. center this is the property you will likely focus on for sprite based games and animations where movement or scaling may occur. By default animation and rotation will be based on the center of the UIView. It rarely makes sense to try and..
Full webpage and disabled zoom viewport meta tag for all mobile browsers http://stackoverflow.com/questions/11345896/full-webpage-and-disabled-zoom-viewport-meta-tag-for-all-mobile-browsers viewport meta tag does not seem to be supported at all. Android 2.3.x 3.x By setting user scalable no you disable the scaling of the viewport meta tag yourself as well. This is probably why your width option is having no effect. To allow the browser.. to disable zoom and scale at the same time in 4.x. iOS Safari 4.x 5.x tested Scales work as expected you can disable scaling with user scalable 0 keywords yes no don't work in 4.x . iOS Safari also has no concept of target densitydpi so you should..
How can I animate the movement of a view or image along a curved path? http://stackoverflow.com/questions/1142727/how-can-i-animate-the-movement-of-a-view-or-image-along-a-curved-path numberWithFloat 0.3 fadeOutAnimation.fillMode kCAFillModeForwards fadeOutAnimation.removedOnCompletion NO Set up scaling CABasicAnimation resizeAnimation CABasicAnimation animationWithKeyPath @ bounds.size resizeAnimation setToValue NSValue..
How to set viewport meta for iPhone that handles rotation properly? http://stackoverflow.com/questions/1230019/how-to-set-viewport-meta-for-iphone-that-handles-rotation-properly
What does the Tiler Utilization statistic mean in the iPhone OpenGL ES instrument? http://stackoverflow.com/questions/1287811/what-does-the-tiler-utilization-statistic-mean-in-the-iphone-opengl-es-instrumen of an array. I ™d also suggest investigating if shorts are suitable for your positions and normals given appropriate scaling. You might also have to bin by position in this case if shorts scaled to provide sufficient precision aren ™t covering the..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally imageView.frame frame The image did get resized but the position is not at the top left. What is the best approach to scaling image imageView and how do I correct the position iphone objective c cocoa touch share improve this question Fixed..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew possible with CGAffineTransform. An affine transform can always be decomposed into translations rotations shearing and scaling. They all map parallelograms into parallelograms which your transform does not. For your transform it can be done in two..
UIImage resize (Scale proportion) [duplicate] http://stackoverflow.com/questions/2645768/uiimage-resize-scale-proportion line of code just grabs the image. grab the original image UIImage originalImage UIImage imageNamed @ myImage.png scaling set to 2.0 makes the image 1 2 the size. UIImage scaledImage UIImage imageWithCGImage originalImage CGImage scale originalImage.scale..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage CGSize newSize UIGraphicsBeginImageContext newSize In next line pass 0.0 to use the current device's pixel scaling factor and thus account for Retina resolution . Pass 1.0 to force exact pixel size. UIGraphicsBeginImageContextWithOptions..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca disable this behavior through the webkit text size adjust CSS property html webkit text size adjust none Prevent font scaling in landscape The use of this property is described further in the Safari Web Content Guide . share improve this answer..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview for each rotation. A full example of this with code can be found here where I've implemented touch based rotation and scaling on a couple of CALayers based on an example by Bill Dudney. The newest version of the program at the very bottom of the..
How do I reset after a UIScrollView zoom? http://stackoverflow.com/questions/448285/how-do-i-reset-after-a-uiscrollview-zoom handle the timing of autoreleases differently than on the device most often when threads are involved . The view scaling is an issue with UIScrollView I've run into though. During a pinch zooming event UIScrollView will take the view you specified.. in the viewForZoomingInScrollView delegate method and apply a transform to it. This transform provides a smooth scaling of the view without having to redraw it each frame. At the end of the zoom operation your delegate method scrollViewDidEndZooming.. the overall scale factor is. Since you've manually redrawn your view at the last scale factor it compounds the scaling which is what you're seeing. As a workaround I use a UIView subclass for my content view with the following methods defined..
Is programmatically inverting the colors of an image possible? http://stackoverflow.com/questions/6672517/is-programmatically-inverting-the-colors-of-an-image-possible r g b 0 perform the colour inversion r 255 r g 255 g b 255 b multiply by alpha again divide by 255 to undo the scaling before store the new values and advance the pointer we're reading pixel data from linePointer 0 r linePointer 3 255 linePointer..
Moving a Stick figure, anchorpoints, animation, or something else…? http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else a node and its position. Thus it is bad design to modify the anchorPoint for gameplay objects. Furthermore rotation or scaling will always be centered on the anchorPoint. Modifying the anchorPoint can result in undesirable behavior when rotating or.. always be centered on the anchorPoint. Modifying the anchorPoint can result in undesirable behavior when rotating or scaling nodes. Let's assume an odd worst case but entirely possible scenario where the anchorPoint is no longer inside the texture..
How do you shrink a UIPickerView on the iPhone? http://stackoverflow.com/questions/905969/how-do-you-shrink-a-uipickerview-on-the-iphone release will scale a picker to 75 of its original size by placing it within a containing view and applying a scaling transform to that view. Applying a transform directly to the UIPickerView leads to undesirable drawing artifacts. However..
iOS: Image get rotated 90 degree after saved as PNG representation data http://stackoverflow.com/questions/10850184/ios-image-get-rotated-90-degree-after-saved-as-png-representation-data delegate.fixOrientationPhoto self fixOrientation UIImage imageWithContentsOfFile delegate filePath imageName NSLog @ Scaling photo delegate.scaledAndRotatedPhoto self scaleAndRotateImage UIImage imageWithContentsOfFile delegate filePath imageName..
OpenGL ES 2.0 texture distortion on large geometry GL_REPEAT http://stackoverflow.com/questions/11370074/opengl-es-2-0-texture-distortion-on-large-geometry-gl-repeat on Android iPhone or WebGL which is similar to OpenGL ES 2.0 All textures are power of 2 but the problem still occurs Scaling the vertex data The values of a vertex's X Y Z location are in the range of 65536 to 65536 floating point I realized this.. and hopefully get more accurate floating point precision but this didn't fix or lessen the texture distortion issue Scaling the modelview or scaling the projection matrix does not help Changing texture filtering options does not help Disabling..
Scaling AR pictures based on the distance from the camera http://stackoverflow.com/questions/11913355/scaling-ar-pictures-based-on-the-distance-from-the-camera AR pictures based on the distance from the camera I ™m developing an augmented reality iPhone app. What it should basically..
Must drawInRect: for a separate context be executed on the main thread? http://stackoverflow.com/questions/3207536/must-drawinrect-for-a-separate-context-be-executed-on-the-main-thread #4 0x315164c8 in UIImage drawInRect blendMode alpha #5 0x31516098 in UIImage drawInRect #6 0x0000d6e4 in UIImage Scaling scaledImageWithWidth andHeight self 0x169320 _cmd 0x30e6e width 48 height 64 at Users me Documents svn app trunk Classes.. andHeight self 0x169320 _cmd 0x30e6e width 48 height 64 at Users me Documents svn app trunk Classes UIImage Scaling.m 20 #7 0x00027df0 in mgMinimap loadThumbnails self 0x13df00 _cmd 0x30d05 at Users me Documents svn app trunk Classes mgMinimap.m..
iphone - Scaling Images are very slow - Help http://stackoverflow.com/questions/3842042/iphone-scaling-images-are-very-slow-help Scaling Images are very slow Help I am scaling images by myself using the following codes. The code is fine and the images are..
http://stackoverflow.com/questions/5059266/uiimageview-transform-scale self UIView commitAnimations Thanks for any help. iphone objective c ios share improve this question It's math. Scaling something by 1.03 0.97 results in scaling factor of 0.9991 and not 1.0 . Either use 1.0 1.03 as your second scaling factor..
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