If I create two paths in Quartz 2d, is there a way to determine if they intersect? Vaguely thought one could make a context and set one path as the clipping path, then draw the other path through tha
I have two pdf documents (doc1 and doc2) with hyperlinks e.g www.somlink.com, www.somlink2.com. According to PDF Specification I can get those hyperlinks via Link Annotations. Link Annotations can be
Should I be able to override drawInContext() and draw outside the bounds of my CALayer? Even though my layer has maskToBounds set to NO (the default) my drawInContext() is called with a clip set to th
I\'m trying to get my head around using QuartzCore to render semi-complex text/gradient/image UITableViewCell composites.Thankfully, Opacity will let me visually build the view and then spit out sourc
I am searching for a glow effect in quartz 2d for the iphone. I tried making lines with different alpha values to simulate glo开发者_运维技巧w but it didn\'t work...
In my app I am displaying PD开发者_StackOverflowF pages and want to allow the user to \"mark up\" the document by freehand drawing on top of the page.I can handle the Quartz code for doing the freehan
I have a CGImageRef and I want to display it on an NSView. I already have an CGImageRef from source path but the following doesn\'t work:
let me first off noting that I have absolutely no idea what I\'m doing with objective-c and mac development (though I\'m fine with c).I made a wonderfully simple graphics utility on leopard with the Q
I am creating a PDF programmatically in my iPhone app using CGContext and CGContextShowTextAtPoint. While this works fine for smaller text, whenever I have line breaks in my text (\\n) or want the tex
I have a drawing app in which I would like to create an undo method.The drawing takes place inside the TouchesMoved: method.
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