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2014/10/15 ¤U¤È 10:03:28

iphone Programming Glossary: a.x

UIView with a Dashed line

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

I do the following 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.. 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 CGRect 0 0 length lineWidth.. 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 CGRect 0 0 length lineWidth lineWidth..

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

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

layer properties 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.. 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 CGRect 0 0 length lineWidth.. 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 CGRect 0 0 length lineWidth lineWidth..