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2014/10/15 ¤U¤È 10:16:04
iphone Programming Glossary: y4aiPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew the transform to convert a rectangle X Y W H to any quadrilateral x1a y1a x2a y2a x3a y3a x4a y4a use this function you may need a transpose function compute_transform_matrix X Y W H x1a y1a x2a y2a.. you 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.. 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..
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 y2a quadBLX CGFloat x3a quadBLY CGFloat y3a quadBRX CGFloat x4a quadBRY CGFloat y4a CGFloat X rect.origin.x CGFloat Y rect.origin.y CGFloat W rect.size.width CGFloat H rect.size.height.. 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.. 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..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew due to convention of using row or column vectors. To obtain the transform to convert a rectangle X Y W H to any quadrilateral x1a y1a x2a y2a x3a y3a x4a y4a use this function you 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.. quadrilateral x1a y1a x2a y2a x3a y3a x4a y4a use this function you 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.. x4a y4a use this function you 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..
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 x1a quadTLY CGFloat y1a quadTRX CGFloat x2a quadTRY CGFloat y2a quadBLX CGFloat x3a quadBLY CGFloat y3a quadBRX CGFloat x4a quadBRY CGFloat y4a CGFloat X rect.origin.x CGFloat Y rect.origin.y CGFloat W rect.size.width CGFloat H rect.size.height CGFloat y21 y2a y1a CGFloat y32 y3a y2a CGFloat y43 y4a y3a.. y4a CGFloat X rect.origin.x CGFloat Y rect.origin.y CGFloat 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.. CGFloat Y rect.origin.y CGFloat 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..
iPhone image stretching (skew) http://stackoverflow.com/questions/2351586/iphone-image-stretching-skew vectors. To obtain the transform to convert a rectangle X Y W H to any quadrilateral x1a y1a x2a y2a x3a y3a x4a y4a use this function you may need a transpose function compute_transform_matrix X Y W H x1a y1a x2a y2a x3a y3a x4a y4a var.. y4a use this function you 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.. 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..
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 x2a quadTRY CGFloat y2a quadBLX CGFloat x3a quadBLY CGFloat y3a quadBRX CGFloat x4a quadBRY CGFloat y4a CGFloat X rect.origin.x CGFloat Y rect.origin.y CGFloat W rect.size.width CGFloat H rect.size.height CGFloat y21 y2a y1a.. rect.origin.y CGFloat 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.. 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..
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