In the method below, I resize an image, but I get an error while debugging that memory cannot be allocated. The image is less than 1 MB in size, so I am confused why this error pops up. Do you have an
I\'m trying to understand how the CGContextMoveToPoint function works. B开发者_运维知识库asically, I have a CGPath that I want to draw multiple times at varying y offsets. To do so, I thought I\'d use
I am drawing a line animation, connecting 2 points with a line.This is my code: -(void) drawObject{ rootLayer= [CALayer layer];
How can I mask an image, add an overlay and an underlay to the masked image with Core Graphics? (for instance: a document icon consists out of a mask png, a page curl png and a base with shadow) Can s
I have a CGImageRef to a shape with a transparent background. Is is possible to stroke the image, like you can stroke a path with CGContextStrokePath()? Alternativ开发者_开发知识库ely, can you convert
I need to animate controls by moving them along the x axis from x to x-1000. My container view is 200 pixels across and each control is 100 pixels wide.
I am currently embedding an image into an exported SVG document and am running into an issue with the transformation matrix on a UIView that I am scaling and moving.
I have a CAShapeLayer that takes his shape fr开发者_高级运维om path. This creates a layer object which can be manipulated, like move and rotate.
I am transferring images from a Mac desktop application to an iPad application, but along the way I lose all the image\'s EXIF data.
I have a CGEventTap and I would like to observe and process all system mouse click events. Detecting a mouse click event is easy, but I don’t want some of the clicks to get processed by the rest of t
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