Anyone have any idea why CGContextFillPath won\'t work in the code snippet below? I\'m using the following code to draw to a UIImageView. It\'s stroking the path correctly, but ignoring CGContextFillP
my uiimage has been add to UIView, then i transform it to scale 1.5 when i try to draw image context it will present incorrect position
I\'d like to multiply r, g, b and a values of two CGImages, to use a single image as both a mask (in its alpha channel) and tint (in the rgb channels). I first tried simply:
i try to undo myContext from save state then after i draw the line i call undo method to restore my context to previous but it report error
I\'ve been at this for hours now, and don\'t even know how to debug this error. Maybe there\'s an SO expert who knows what\'s going on.
does anybody know what to do with this problem: my image in a custom MKPolygonView is flipped upside down?
I am currently making a basic image editor for iphone. I take the CGImageRef from a UIIma开发者_如何学运维ge and create a context for it using the following code
I hadCarbon code which prints image as tiles in . But now for 64 bit i want to change that into carbon.
I\'m currently making a graphical application, and it will make my life a lot easier if I simply flip the context\'s transform matrix upside down whenever I want to draw something upside down, which i
Thank you in advance for any help, I am building a multipage iPad app,and each page has specialized calculations, they all work great, but i would like to make the user experience better with some sim
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