I have an NSBitmapImageRep that is created like this: NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc]
On each cell of my table view I want to have a bar that the user can slide out from the right.On the bar I plan to have icons.So, to do this I subclassed UITableViewCell.On the cell I have implemented
For my iPhone 3D apps I am currently using CoreGraphics 开发者_JS百科to load png files that have pre-multiplied alpha. Here are the essentials:
I am developing an app which will let users 开发者_开发知识库to \'draw\' on screen via finger touch - so basically users can write, draw shapes - similar to a white board.
Whenever I stroke a path with rounded corner开发者_运维技巧s on iPhone, the rounded corners are thicker than the rest of the stroked path. See here for what I mean:
I am using the framework of route-me for working with locations. In this code the path between two markers(points) will be drawn as a line.
A simple google search for: CGRect + C or CGRect in C brings back only Apple, iP开发者_如何学Gohone, and Objective-C websites.However, I remember hearing that Core Graphics was part of C at my
I have an array that contains the RGB colour values for each pixel in a 320 x 180 display.I would like to be able to set individual pixel values in the a bitmap context of the same size offscreen then
Pretty simple question: when doing some pretty intense drawing with CoreGraphics on the iPhone, how can I specify the pixel format to get optimal performance? Is the format that I get from the context
I am developing an iPhone app that resizes and merges images. I want to select two photos of size 1600x1200 from photo library and then merge both into a single image and save that new image back to
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