drawing UIImage inside a CGMutablePath

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我寻月下人不归
我寻月下人不归 2021-01-21 11:27

Given a CGMutablePathRef how do I draw a UIImage in it? I know that you can draw it like the following:

 UIImage* scaledImage = UIGraphicsGetImageFromCurrentImag         


        
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  • 2021-01-21 11:56

    When you say "draw within a CGMutablePath" I have to assume you mean "clip to a CGMutablePath." In that case, you just need to add the path to the current context (CGContextAddPath() or any of the path-building functions like CGContextAddLineToPoint()) and then call CGContextClip(). You can then draw your image in the context with something like drawAtPoint: or CGContextDrawImage().

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  • 2021-01-21 12:13

    I think that you are choosing the hard way of doing it.

    Your approach assumes that you have already got a bitmap and created a bitmap based graphics context. At your place I would just use UIImage's :

    - (void)drawAtPoint:(CGPoint)point;
    
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