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10.2自定义缓冲函数代码 #23

@AirChen

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@AirChen

直接用书上的代码,取得的两个点坐标不对,需改成如下:

float p1[2];
float p2[2];
[func getControlPointAtIndex:1 values:(float *)&p1];
[func getControlPointAtIndex:2 values:(float *)&p2];    
CGPoint point1 = CGPointMake(p1[0], p1[1]);
CGPoint point2 = CGPointMake(p2[0], p2[1]);

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