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2014/10/15 ¤U¤È 10:10:55
iphone Programming Glossary: lastpoint.yHow to Unerase the erased UIImage http://stackoverflow.com/questions/14053563/how-to-unerase-the-erased-uiimage if UIPanGestureRecognizer sender state UIGestureRecognizerStateBegan lastPoint sender locationInView imgForeground lastPoint.y 20 else currentPoint sender locationInView imgForeground currentPoint.y 20 UIGraphicsBeginImageContext imgForeground.frame.size.. UIGraphicsGetCurrentContext kCGBlendModeClear CGContextBeginPath context CGContextMoveToPoint context lastPoint.x lastPoint.y CGContextAddLineToPoint context lastPoint.x lastPoint.y CGContextStrokePath context imgForeground.image UIGraphicsGetImageFromCurrentImageContext.. context CGContextMoveToPoint context lastPoint.x lastPoint.y CGContextAddLineToPoint context lastPoint.x lastPoint.y CGContextStrokePath context imgForeground.image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext My Question..
http://stackoverflow.com/questions/19108185/lag-while-drawing-in-ios7 CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext currentPoint.x currentPoint.y CGContextStrokePath UIGraphicsGetCurrentContext.. CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext currentPoint.x currentPoint.y CGContextStrokePath UIGraphicsGetCurrentContext.. UIGraphicsGetCurrentContext kCGBlendModeClear CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextStrokePath UIGraphicsGetCurrentContext..
want to add manual erasing option in ipad painting application by quartz http://stackoverflow.com/questions/3863931/want-to-add-manual-erasing-option-in-ipad-painting-application-by-quartz touch locationInView imgview NSLog @ asdasdas CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext currentPoint.x currentPoint.y CGContextStrokePath UIGraphicsGetCurrentContext..
Is there an SDK to draw lines on iOS with touch? http://stackoverflow.com/questions/6774352/is-there-an-sdk-to-draw-lines-on-ios-with-touch NO UITouch touch touches anyObject if touch tapCount 2 drawImage.image nil return lastPoint touch locationInView self lastPoint.y 20 NSLog @ touches begin void touchesMoved NSSet touches withEvent UIEvent event mouseSwiped YES UITouch touch touches anyObject.. CGColor CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextClearRect UIGraphicsGetCurrentContext CGRectMake lastPoint.x lastPoint.y 20 20 CGContextStrokePath UIGraphicsGetCurrentContext.. lastPoint.x lastPoint.y CGContextClearRect UIGraphicsGetCurrentContext CGRectMake lastPoint.x lastPoint.y 20 20 CGContextStrokePath UIGraphicsGetCurrentContext NSLog @ clearing CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint..
Filling a portion of an image with color http://stackoverflow.com/questions/8124308/filling-a-portion-of-an-image-with-color tempColor UIColor alloc initWithPatternImage UIImage imageNamed imageName lastPoint touch locationInView self.view lastPoint.y 20 NSString tx NSString alloc initWithFormat @ .0f lastPoint.x NSString ty NSString alloc initWithFormat @ .0f lastPoint.y.. 20 NSString tx NSString alloc initWithFormat @ .0f lastPoint.x NSString ty NSString alloc initWithFormat @ .0f lastPoint.y NSLog @ the vale of the string is @ and @ tx ty int ix tx intValue int iy ty intValue int z 1 NSLog @ the vale of the string..
how to create an application which allows user to free hand drawing? [closed] http://stackoverflow.com/questions/8207913/how-to-create-an-application-which-allows-user-to-free-hand-drawing NSBundle mainBundle pathForResource @ white ofType @ png return lastPoint touch locationInView self.view lastPoint.y 20 void touchesMoved NSSet touches withEvent UIEvent event mouseSwiped YES UITouch touch touches anyObject CGPoint currentPoint.. 0.6 1.0 CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext currentPoint.x currentPoint.y CGContextStrokePath UIGraphicsGetCurrentContext..
draw line between two points in iphone? http://stackoverflow.com/questions/8208469/draw-line-between-two-points-in-iphone UIGraphicsGetCurrentContext 1.0 0.0 0.0 1.0 CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextStrokePath UIGraphicsGetCurrentContext.. UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextStrokePath UIGraphicsGetCurrentContext CGContextFlush UIGraphicsGetCurrentContext imageView.image UIGraphicsGetImageFromCurrentImageContext.. NSBundle mainBundle pathForResource @ white ofType @ png return lastPoint touch locationInView self.view lastPoint.y 20 void touchesMoved NSSet touches withEvent UIEvent event mouseSwiped YES UITouch touch touches anyObject CGPoint currentPoint..
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