Core Graphics is Apple's framework for low-level drawing operations on Mac OS X and iOS.
I want to set the UINavigationbar backgroundColor to a gradient color where I would like to set it via an …
ios uinavigationbar core-graphicsI have a UIScrollView decendent that implements a takeScreenshot method that looks like this: -(void)takeScreenshot { CGRect contextRect = CGRectMake(0, 0, 768, 1004); …
ios iphone ipad core-graphicsin my Cocoa application, I load a .jpg file from disk, manipulate it. Now it needs to be written to …
cocoa png core-graphics cgimage#define radians(degrees) (degrees * M_PI/180) UIImage *rotate(UIImage *image) { CGSize size = image.size;; UIGraphicsBeginImageContext(size); CGContextRef context = UIGraphicsGetCurrentContext(); // If …
iphone objective-c ios core-graphicsIf I draw my chart inside - (void)drawRect:(CGRect)rect is just enough to set [_chartView setContentMode:UIViewContentModeRedraw] and …
ios uiview core-graphics quartz-coreI have a UIView that I am trying to render into a UIImage using [CALayer renderInContext:]. However, I find that …
iphone uikit core-graphicsI have a UIImage which is loaded from a CIImage with: tempImage = [UIImage imageWithCIImage:ciImage]; The problem is I need …
ios core-graphics core-image cgimage ciimageHow would I store CGRect objects in a NSMutableArray, and then later retrieve them?
iphone nsmutablearray core-graphicsI'm writing an iPhone app, and I've got an image which I'ld like to have swirl outwards. Currently my code …
iphone cocoa-touch core-animation core-graphicsI need to draw line with arrow on its end in my Draw app. I'm not good in trigonometry, so …
objective-c ios core-graphics quartz-2d