我看CoreGraphics的教程时,里面提到1像素绘图模糊的问题,需要偏移0.5点才行。这是为什么呢?stroke path不是stroke在边界上吗?
It turns out that when Core Graphics strokes a path, it draws the stroke on the middle of the exact edge of the path.
这句话要怎么理解呢?
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