Freehand drawing with Quartz 2D

Posted by qutaibah on Stack Overflow See other posts from Stack Overflow or by qutaibah
Published on 2010-03-25T01:31:29Z Indexed on 2010/03/25 1:33 UTC
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I am trying to develop a simple freehand-drawing app for red-marking some of my images. Below is a method that is called from within the drawRect.

I want to ask if there is a way to avoid add the path every time the path is redrawn?

Also, the way the draw method is set up, the drawing gets a bit slow and choopy after a few seconds. How can I improve the smoothness of the drawn path?

thanks

-(void)freehandDraw:(CGContextRef)context inRect:(CGRect)rect {
CGPathAddLineToPoint( path, NULL, drawTip.x, drawTip.y); CGContextAddPath( context, path); CGContextStrokePath(context);
} // method

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