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2014/10/15 ¤U¤È 10:13:39
iphone Programming Glossary: scaleHow to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally.. to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width. UIImage image UIImage alloc initWithData.. alloc initWithImage image Add image view self.view addSubview imageView set contentMode to scale aspect to fit imageView.contentMode UIViewContentModeScaleAspectFit change width of frame CGRect frame..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen mainScreen .scale else UIGraphicsBeginImageContext..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework for this one... in order to optimise different routines return values that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul.. that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul A.realp 1 scale A.realp 1 nOver2 vDSP_vsmul A.imagp 1 scale A.imagp 1 nOver2..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer addSublayer _textLayer..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits.. am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach.. issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll the pages you can see a lower res..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext.. to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext.. as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0 so..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest alloc initWithRequest request delegate self My first question is will this approach scale up Or is this not async meaning I block the UI thread while the app is waiting for the response My second..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop of my design that it would be a trivial matter to grab a image from the iPhone's camera or library scale it down to a specified height using a function equivalent to the Aspect Fill option of UIImageView entirely.. improve this question I needed the same thing in my case to pick the dimension that fits once scaled and then crop each end to fit the rest to the width. I'm working in landscape so might not have noticed.. CGFloat targetWidth targetSize.width CGFloat targetHeight targetSize.height CGFloat scaleFactor 0.0 CGFloat scaledWidth targetWidth CGFloat scaledHeight targetHeight CGPoint thumbnailPoint CGPointMake..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width. UIImage image UIImage.. to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width. UIImage image UIImage alloc initWithData NSData dataWithContentsOfURL NSURL URLWithString @ http farm4.static.flickr.com.. 3092 2915896504_a88b69c9de.jpg UIImageView imageView UIImageView alloc initWithImage image Add image view self.view addSubview imageView set contentMode to scale aspect to fit imageView.contentMode UIViewContentModeScaleAspectFit change width of frame CGRect frame imageView.frame frame.size.width 100 imageView.frame frame..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen mainScreen .scale else UIGraphicsBeginImageContext self.window.bounds.size share improve..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework is one final thing that needs to be done Need to see the documentation for this one... in order to optimise different routines return values that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul A.realp 1 scale A.realp 1 nOver2 vDSP_vsmul A.imagp..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel controller _textLayer.frame CGRectMake layer.bounds.size.width 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer addSublayer _textLayer Create the attributes for the attributed string CGFloat..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real time render of new zoom.. In my current project I'm developing a PDF viewer and am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll the pages you can see a lower res version.. and am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll the pages you can see a lower res version of the page for just less than a second before a crisp..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display renderInContext UIGraphicsGetCurrentContext UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions as documented.. improve this question Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0 so you're.. to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0 so you're actually getting exactly the same image on an iPhone..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest NSURL URLWithString @ http www.whatever.com json NSURLConnection alloc initWithRequest request delegate self My first question is will this approach scale up Or is this not async meaning I block the UI thread while the app is waiting for the response My second question is how might I modify the request part of this..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop my goal. I thought ahead of time in the conceptual phases of my design that it would be a trivial matter to grab a image from the iPhone's camera or library scale it down to a specified height using a function equivalent to the Aspect Fill option of UIImageView entirely in code and then crop off anything that did not fit.. your help. iphone ios image processing core graphics share improve this question I needed the same thing in my case to pick the dimension that fits once scaled and then crop each end to fit the rest to the width. I'm working in landscape so might not have noticed any deficiencies in portrait mode. Here's my code it's.. CGFloat width imageSize.width CGFloat height imageSize.height CGFloat targetWidth targetSize.width CGFloat targetHeight targetSize.height CGFloat scaleFactor 0.0 CGFloat scaledWidth targetWidth CGFloat scaledHeight targetHeight CGPoint thumbnailPoint CGPointMake 0.0 0.0 if CGSizeEqualToSize imageSize targetSize..
How to scale a UIImageView proportionally? http://stackoverflow.com/questions/185652/how-to-scale-a-uiimageview-proportionally to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally by giving it either.. to scale a UIImageView proportionally I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width. UIImage image UIImage alloc initWithData NSData dataWithContentsOfURL.. imageView UIImageView alloc initWithImage image Add image view self.view addSubview imageView set contentMode to scale aspect to fit imageView.contentMode UIViewContentModeScaleAspectFit change width of frame CGRect frame imageView.frame frame.size.width..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen mainScreen .scale else UIGraphicsBeginImageContext..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework Need to see the documentation for this one... in order to optimise different routines return values that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul A.realp 1 scale.. return values that need to be scaled by different amounts in order to be correct as per the math In this case... scale float 1.0 2 n vDSP_vsmul A.realp 1 scale A.realp 1 nOver2 vDSP_vsmul A.imagp 1 scale A.imagp 1 nOver2 share improve this..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel layer.bounds.size.width 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer addSublayer _textLayer Create the..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it.. a PDF viewer and am rendering a UIImage of a page in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll.. in a separate thread issues here too and presenting it while the scale is x1. CATiledLayer rendering kicks in once the scale is 1. iBooks takes a similar double take approach as if you scroll the pages you can see a lower res version of the page..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions.. use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext.. as documented on this page . Pass 0.0 for scale the third argument and you'll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0 so you're actually getting..
How to send json data in the Http request using NSURLRequest http://stackoverflow.com/questions/4456966/how-to-send-json-data-in-the-http-request-using-nsurlrequest json NSURLConnection alloc initWithRequest request delegate self My first question is will this approach scale up Or is this not async meaning I block the UI thread while the app is waiting for the response My second question is how..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop conceptual phases of my design that it would be a trivial matter to grab a image from the iPhone's camera or library scale it down to a specified height using a function equivalent to the Aspect Fill option of UIImageView entirely in code and.. core graphics share improve this question I needed the same thing in my case to pick the dimension that fits once scaled and then crop each end to fit the rest to the width. I'm working in landscape so might not have noticed any deficiencies.. CGFloat height imageSize.height CGFloat targetWidth targetSize.width CGFloat targetHeight targetSize.height CGFloat scaleFactor 0.0 CGFloat scaledWidth targetWidth CGFloat scaledHeight targetHeight CGPoint thumbnailPoint CGPointMake 0.0 0.0 if..
http://stackoverflow.com/questions/2110009/iphone-audio-analysis works because one channel always has an mAveragePower of 0. return channelAvg You can get peak power in either dB Free Scale with kAudioQueueProperty_CurrentLevelMeterDB or simply as a float in the interval 0.0 1.0 with kAudioQueueProperty_CurrentLevelMeter..
UIImage resize (Scale proportion) [duplicate] http://stackoverflow.com/questions/2645768/uiimage-resize-scale-proportion resize Scale proportion duplicate Possible Duplicate Resize UIImage with aspect ratio The following piece of code is resizing the image..
UIImageView Gestures (Zoom, Rotate) Question http://stackoverflow.com/questions/3448614/uiimageview-gestures-zoom-rotate-question YES foo.multipleTouchEnabled YES foo.image UIImage imageNamed @ earth.jpg foo.contentMode UIViewContentModeScaleAspectFit foo.clipsToBounds YES self.view addSubview foo pinch gesture UIPinchGestureRecognizer pinchGesture UIPinchGestureRecognizer.. factor UIPinchGestureRecognizer sender scale if factor 1 zooming in sender.view.transform CGAffineTransformMakeScale lastScaleFactor factor 1 lastScaleFactor factor 1 else zooming out sender.view.transform CGAffineTransformMakeScale.. UIPinchGestureRecognizer sender scale if factor 1 zooming in sender.view.transform CGAffineTransformMakeScale lastScaleFactor factor 1 lastScaleFactor factor 1 else zooming out sender.view.transform CGAffineTransformMakeScale lastScaleFactor..
How to display an image on a MKOverlayView? http://stackoverflow.com/questions/3891850/how-to-display-an-image-on-a-mkoverlayview return mapRect The implementation of the custom MKOverlayView RadarOverlayView void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context RadarOverlay radarOverlay RadarOverlay self.overlay UIImage image UIImage.. The implementation of the custom MKOverlayView RadarOverlayView void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context RadarOverlay radarOverlay RadarOverlay self.overlay UIImage image UIImage alloc.. of the custom MKOverlayView RadarOverlayView void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context RadarOverlay radarOverlay RadarOverlay self.overlay UIImage image UIImage alloc initWithData..
Drawing in CATiledLayer with CoreGraphics CGContextDrawImage http://stackoverflow.com/questions/4067512/drawing-in-catiledlayer-with-coregraphics-cgcontextdrawimage context CGAffineTransformMakeTranslation 0.f rect.size.height CGContextConcatCTM context CGAffineTransformMakeScale 1.f 1.f CATiledLayer tiledLayer CATiledLayer layer CGSize tileSize tiledLayer.tileSize tileSize.width scale tileSize.height.. for int row firstRow row lastRow row for int col firstCol col lastCol col if row 0 continue UIImage tile self tileForScale scale row row col col CGImageRef tileRef tile CGImage CGRect tileRect CGRectMake tileSize.width col tileSize.height row.. 100.f text length CGContextRestoreGState context CGContextRestoreGState context As you can see I am using a Scale transform to invert the coordinate system and a translation transform to shift the origin to the lower left corner. The..
Scale image to fit screen on iPhone rotation http://stackoverflow.com/questions/4219629/scale-image-to-fit-screen-on-iphone-rotation image to fit screen on iPhone rotation I have a UIScrollView containing an UIImageView and I have some trouble to get the.. If not one should probably set scrollView.autoresizingMask UIViewAutoresizingNone and manually set zoomScale and contentOffset for the UIScrollView on rotation. But where should that be done What about animating that change Solution.. UIViewAutoresizingFlexibleWidth UIViewAutoresizingFlexibleHeight imageView.contentMode UIViewContentModeScaleAspectFit scrollView.contentMode UIViewContentModeCenter iphone uiscrollview autoresizingmask share improve this question..
http://stackoverflow.com/questions/4722526/display-pdf-on-ipad cropBox CGRect targetRect layer.bounds GLogDebug @ the targetRect is @ NSStringFromCGRect targetRect CGFloat xScale targetRect.size.width cropBox.size.width CGFloat yScale targetRect.size.height 41 cropBox.size.height CGFloat scaleToApply.. @ the targetRect is @ NSStringFromCGRect targetRect CGFloat xScale targetRect.size.width cropBox.size.width CGFloat yScale targetRect.size.height 41 cropBox.size.height CGFloat scaleToApply xScale yScale xScale yScale NSLog @ the scaleToApply.. cropBox.size.width CGFloat yScale targetRect.size.height 41 cropBox.size.height CGFloat scaleToApply xScale yScale xScale yScale NSLog @ the scaleToApply is f X scale is f Y scale is f scaleToApply xScale yScale CGContextTranslateCTM..
http://stackoverflow.com/questions/5059266/uiimageview-transform-scale Transform Scale I have a UIButton that when pressed will make a UIImageView scale slightly larger and then back to its normal size. It's.. to normal UIView beginAnimations nil context NULL UIView setAnimationDuration 0.2 myImage.transform CGAffineTransformScale myImage.transform 1.03 1.03 UIView setAnimationDelegate self UIView commitAnimations UIView beginAnimations nil context.. UIView beginAnimations nil context NULL UIView setAnimationDuration 0.2 myImage.transform CGAffineTransformScale myImage.transform 0.97 0.97 UIView setAnimationDelegate self UIView commitAnimations Thanks for any help. iphone objective..
Max/Min Scale of Pinch Zoom in UIPinchGestureRecognizer - iPhone iOS http://stackoverflow.com/questions/5150642/max-min-scale-of-pinch-zoom-in-uipinchgesturerecognizer-iphone-ios Min Scale of Pinch Zoom in UIPinchGestureRecognizer iPhone iOS How would I be able to limit the scale of the UIPinchGestureRecognizer.. UIPinchGestureRecognizer sender view if UIPinchGestureRecognizer sender state UIGestureRecognizerStateEnded lastScale 1.0 return CGFloat pinchscale UIPinchGestureRecognizer sender scale CGFloat scale 1.0 lastScale pinchscale CGAffineTransform.. lastScale 1.0 return CGFloat pinchscale UIPinchGestureRecognizer sender scale CGFloat scale 1.0 lastScale pinchscale CGAffineTransform currentTransform UIPinchGestureRecognizer sender view .transform CGAffineTransform holderTransform..
UIPinchGestureRecognizer Scale view in different x and y directions http://stackoverflow.com/questions/5349907/uipinchgesturerecognizer-scale-view-in-different-x-and-y-directions Scale view in different x and y directions i don't want to use the scale as classic zoom instead i want to change the form of.. height 1 height 1 self.bounds CGRectMake self.bounds.origin.x self.bounds.origin.y width height gestureRecognizer setScale 1 self layer setBorderWidth 2.f does anyone know a way to make a X Y Scale which don't resize to my fingers position as.. width height gestureRecognizer setScale 1 self layer setBorderWidth 2.f does anyone know a way to make a X Y Scale which don't resize to my fingers position as corners. Thank you very much iphone objective c scale pinch share improve..
(Scale) Zoom into a UIView at a point http://stackoverflow.com/questions/5446899/scale-zoom-into-a-uiview-at-a-point Scale Zoom into a UIView at a point I've been stuck on this for days. Something I don't understand about transformations. I want.. transformations. I want to zoom in to say the top right corner of a UIView the main view . I use CGAffineTransformScale and have tried both setting the center anchorPoint as well as CGAffineTransformMakeTranslation to no avail. I can't figure.. out how to set the translation properly so that it will zoom in on this point. CGAffineTransform tr CGAffineTransformScale self.view.transform 2 2 UIView animateWithDuration 2.5 delay 0 options 0 animations ^ self.view.transform tr self.view.center..
Custom transition between two UIViews http://stackoverflow.com/questions/5511514/custom-transition-between-two-uiviews float dY center.y self.view.center.y NSLog @ dx f dy f dX dY transform CGAffineTransformTranslate transform dX dY Scale our view float scaleWFactor image.size.width self.view.frame.size.width float scaleHFactor image.size.height self.view.frame.size.height.. self.view.frame.size.width float scaleHFactor image.size.height self.view.frame.size.height transform CGAffineTransformScale transform scaleWFactor scaleHFactor self.view.transform transform UIApplication easybookDelegate rootViewController .view..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop my code is always set to the full screen size of the device. @implementation UIImage Extras #pragma mark #pragma mark Scale and crop image UIImage imageByScalingAndCroppingForSize CGSize targetSize UIImage sourceImage self UIImage newImage nil..
Using UIPinchGestureRecognizer to scale uiviews in single direction http://stackoverflow.com/questions/6759028/using-uipinchgesturerecognizer-to-scale-uiviews-in-single-direction action @selector scalePiece pinchGesture setDelegate self piece addGestureRecognizer pinchGesture pinchGesture release Scale piece void scalePiece UIPinchGestureRecognizer gestureRecognizer UIView piece UIView gestureRecognizer view NSLog @ scalePiece.. deltaMove float distance sqrt deltaMove.x deltaMove.x deltaMove.y deltaMove.y NSLog @ distance f distance float hScale 1 deltaMove.x distance 1 gestureRecognizer.scale float vScale 1 deltaMove.y distance 1 gestureRecognizer.scale if distance.. deltaMove.y NSLog @ distance f distance float hScale 1 deltaMove.x distance 1 gestureRecognizer.scale float vScale 1 deltaMove.y distance 1 gestureRecognizer.scale if distance 0 hScale 1 vScale 1 NSLog @ gestureRecognizer scale f gestureRecognizer..
http://stackoverflow.com/questions/7825220/draw-text-in-circle-overlay show up correctly. Also tried the first response's solution same result . void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context super drawMapRect mapRect zoomScale zoomScale inContext context NSString.. correctly. Also tried the first response's solution same result . void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context super drawMapRect mapRect zoomScale zoomScale inContext context NSString t @ XXXXX.. Also tried the first response's solution same result . void drawMapRect MKMapRect mapRect zoomScale MKZoomScale zoomScale inContext CGContextRef context super drawMapRect mapRect zoomScale zoomScale inContext context NSString t @ XXXXX nXXXX..
iOS Pinch Scale and Two Finger Rotate at same time http://stackoverflow.com/questions/8108768/ios-pinch-scale-and-two-finger-rotate-at-same-time Pinch Scale and Two Finger Rotate at same time Here is my code viewDidLoad UIPinchGestureRecognizer pinch UIPinchGestureRecognizer.. selectedImage.transform break case UIGestureRecognizerStateChanged CGAffineTransform transform CGAffineTransformScale selectedImage.referenceTransform pinch.scale pinch.scale selectedImage.transform transform break default break My rotation.. respondsToSelector @selector scale CGFloat scale UIPinchGestureRecognizer recognizer scale return CGAffineTransformScale transform scale scale else return transform This works if you're just allowing rotating and scaling. I even tested it If..
iOS - Scale and crop CMSampleBufferRef/CVImageBufferRef http://stackoverflow.com/questions/8493583/ios-scale-and-crop-cmsamplebufferref-cvimagebufferref Scale and crop CMSampleBufferRef CVImageBufferRef I am using AVFoundation and getting the sample buffer from AVCaptureVideoDataOutput..
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