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2014/10/15 ¤U¤È 10:03:28

iphone Programming Glossary: a.y

UIView with a Dashed line

http://stackoverflow.com/questions/12091916/uiview-with-a-dashed-line

void setLayerToLineFromAToB CALayer layer CGPoint a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds.. layer CGPoint a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds CGRect 0 0 length lineWidth lineWidth.. a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds CGRect 0 0 length lineWidth lineWidth layer.transform..

What's the best approach to draw lines between views?

http://stackoverflow.com/questions/5847876/whats-the-best-approach-to-draw-lines-between-views

void setLayerToLineFromAToB CALayer layer CGPoint a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds.. layer CGPoint a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds CGRect 0 0 length lineWidth lineWidth.. a CGPoint b CGFloat lineWidth CGPoint center 0.5 a.x b.x 0.5 a.y b.y CGFloat length sqrt a.x b.x a.x b.x a.y b.y a.y b.y CGFloat angle atan2 a.y b.y a.x b.x layer.position center layer.bounds CGRect 0 0 length lineWidth lineWidth layer.transform..