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2014/10/15 ¤U¤È 10:13:39
iphone Programming Glossary: scaledUITableViewCell's imageView fit to 40x40 http://stackoverflow.com/questions/1055495/uitableviewcells-imageview-fit-to-40x40 UIImage makeThumbnailOfSize CGSize size UIGraphicsBeginImageContextWithOptions size NO UIScreen.mainScreen.scale draw scaled image into thumbnail context self drawInRect CGRectMake 0 0 size.width size.height UIImage newThumbnail UIGraphicsGetImageFromCurrentImageContext..
How to get a rotated, zoomed and panned image from an UIImageView at its full resolution? http://stackoverflow.com/questions/11104042/how-to-get-a-rotated-zoomed-and-panned-image-from-an-uiimageview-at-its-full-re and panned image from an UIImageView at its full resolution I have an UIImageView which can be rotated panned and scaled with gesture recognisers. As a result it is cropped in its enclosing view. Everything is working fine but I don't know how.. an image in high resolution let's say a 8MP iPhone 4s camera photo which is transformed with gestures so it becomes scaled rotated and moved around in its enclosing view. Obviously there is some cropping going on so only a part of the image is..
http://stackoverflow.com/questions/1215869/thumbnail-view-of-images scale down an image is to simply display it in a UIImageView with a frame set to the smaller size that you want it's scaled for you. If you want to save a thumbnail or care about memory usage you can create a hard scaled version. The sample code.. that you want it's scaled for you. If you want to save a thumbnail or care about memory usage you can create a hard scaled version. The sample code below is taken from this blog post and can be added to UIImage as a category method UIImage imageScaledToSize..
iPhone Objective C: How to get a pixel's color of the touched point on an UIImageView? http://stackoverflow.com/questions/1285621/iphone-objective-c-how-to-get-a-pixels-color-of-the-touched-point-on-an-uiimag of the UITouch still correctly return the correct pixel of the touched point even if the UIView UIImageView is being scaled and rotated Many thanks for reading edited Thanks for the answer comments but sorry I still don't know how to get the X.. thanks for reading edited Thanks for the answer comments but sorry I still don't know how to get the X Y point of the scaled rotated image from the touch event and then extract the color from it. Would anyone mind to help iphone objective c uiimageview..
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 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 range you need. These sorts of techniques might require additional draw..
http://stackoverflow.com/questions/158914/cropping-a-uiimage a UIImage I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage and return a small square representation of an image similar..
resize all subview in scrollViewDidZoom http://stackoverflow.com/questions/19856928/resize-all-subview-in-scrollviewdidzoom . 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 just all of it's content scaled up down it also affects it's frame property so nor the contained inner view and label will be resized just scaled up down.. scaled up down it also affects it's frame property so nor the contained inner view and label will be resized just scaled up down when rendering the mainView this is why their frame is unaffected. Just implement void scrollViewDidZoom UIScrollView..
Zoom UILabel & Re-render font at correct size http://stackoverflow.com/questions/1990458/zoom-uilabel-re-render-font-at-correct-size in the text not be lost. To get a feel for what I'm going for notice how in Mobile Safari when you zoom the text is scaled anti aliased for a split second then it clears up to render well at your current zoom scale iphone uiscrollview uilabel.. of the UIScrollView within the above delegate method and calculate what position that corresponds to in the newly scaled UILabel. You then set the contentSize of the scroll view to match the new size of the UILabel and use setContentOffset animated..
How do I reset the scale/zoom of a web app on an orientation change on the iPhone? http://stackoverflow.com/questions/2557801/how-do-i-reset-the-scale-zoom-of-a-web-app-on-an-orientation-change-on-the-iphon yet been able to answer it. When I start the app in portrait mode it works fine. Then I rotate into landscape and it's scaled up. To get it to scale correctly for the landscape mode I have to double tap on something twice first to zoom all the way..
UIImage resize (Scale proportion) [duplicate] http://stackoverflow.com/questions/2645768/uiimage-resize-scale-proportion iphone resize uiimage share improve this question I used this single line of code to create a new UIImage which is scaled. Set the scale and orientation params to achieve what you want. The first 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 2.0 orientation originalImage.imageOrientation..
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..
How to get photos of a facebook album in iPhone SDK? http://stackoverflow.com/questions/4921945/how-to-get-photos-of-a-facebook-album-in-iphone-sdk and source properties to get the image data from facebook. They will all have an images array as well if you want pre scaled images instead of just the originals. All the facebook queries give JSON back I'm assuming that you know how to parse this..
http://stackoverflow.com/questions/603907/uiimage-resize-then-crop 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 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.. 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 NO CGFloat widthFactor..
http://stackoverflow.com/questions/7825220/draw-text-in-circle-overlay mkoverlay share improve this question I believe your code is working and the problem is that the text is not being scaled properly making it invisible. Scale the font size based on the zoomScale using the MKRoadWidthAtZoomScale function t drawInRect..
UIView scaling during animation http://stackoverflow.com/questions/818207/uiview-scaling-during-animation leaving the tile sizes constant. What happens instead is that while the area grows the original content of the view is scaled to the new size. At least during the animation. So the at the beginning and the end of the animation all is good. During..
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