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2014/10/15 ¤U¤È 10:16:04

iphone Programming Glossary: y42

iPhone image stretching (skew)

http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew

H x1a y1a x2a y2a x3a y3a x4a y4a var y21 y2a y1a y32 y3a y2a y43 y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a.. y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32.. x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var d H x4a y21..

Transforming a rectangle image into a quadrilateral using a CATransform3D

http://stackoverflow.com/questions/9470493/transforming-a-rectangle-image-into-a-quadrilateral-using-a-catransform3d

y2a y1a CGFloat y32 y3a y2a CGFloat y43 y4a y3a CGFloat y14 y1a y4a CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a.. CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a.. y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat d H x4a..

iPhone image stretching (skew)

http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew

may need a transpose function compute_transform_matrix X Y W H x1a y1a x2a y2a x3a y3a x4a y4a var y21 y2a y1a y32 y3a y2a y43 y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a.. y1a x2a y2a x3a y3a x4a y4a var y21 y2a y1a y32 y3a y2a y43 y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14.. x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var d H x4a y21 y3a x2a y1a y43 x1a y2a y43 x3a y1a y4a x3a y2a y4a var e W..

Transforming a rectangle image into a quadrilateral using a CATransform3D

http://stackoverflow.com/questions/9470493/transforming-a-rectangle-image-into-a-quadrilateral-using-a-catransform3d

W rect.size.width CGFloat H rect.size.height CGFloat y21 y2a y1a CGFloat y32 y3a y2a CGFloat y43 y4a y3a CGFloat y14 y1a y4a CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a.. CGFloat y32 y3a y2a CGFloat y43 y4a y3a CGFloat y14 y1a y4a CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a.. y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat d H x4a y21 y3a x2a y1a y43 x1a y2a y43 x3a y1a y4a x3a y2a y4a CGFloat..

iPhone image stretching (skew)

http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew

X Y W H x1a y1a x2a y2a x3a y3a x4a y4a var y21 y2a y1a y32 y3a y2a y43 y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43.. y1a y32 y3a y2a y43 y4a y3a y14 y1a y4a y31 y3a y1a y42 y4a y2a var a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a.. x3a y42 var b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 var d H x4a y21 y3a x2a y1a y43 x1a..

Transforming a rectangle image into a quadrilateral using a CATransform3D

http://stackoverflow.com/questions/9470493/transforming-a-rectangle-image-into-a-quadrilateral-using-a-catransform3d

CGFloat y21 y2a y1a CGFloat y32 y3a y2a CGFloat y43 y4a y3a CGFloat y14 y1a y4a CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a.. CGFloat y14 y1a y4a CGFloat y31 y3a y1a CGFloat y42 y4a y2a CGFloat a H x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42.. CGFloat b W x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat c H X x2a x3a y14 x2a x4a y31 x1a x4a y32 x1a x3a y42 H W x1a x4a y32 x3a y42 x2a y43 W Y x2a x3a y14 x3a x4a y21 x1a x4a y32 x1a x2a y43 CGFloat d H x4a y21 y3a x2a y1a y43..