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ioscore-graphics

How to stroke a CGPath?

To stroke a CG path, which should I use? 

    CGContextStrokePath(context)

or

    CGContextDrawPath(context, .Stroke)

What's the difference between the two?

Solution

  • Stroking a path draws the outline of the path using the current settings. Always a stroke, never a fill.

    CGContextDrawPath draws the path using the specified mode. If you pass in a mode of kCGPathStroke, it does the same thing as CGContextStrokePath

    Likewise, if you call CGContextDrawPath with a mode of kCGPathFill, it does the same thing as CGContextFillPath

    If you only want to stroke, not fill a path, then use CGContextStrokePath.