2014/10/15 下午 10:05:01

iphone Programming Glossary: cgcontextsetrgbstrokecolor

How do I make UILabel display outlined text?

http://stackoverflow.com/questions/1103148/how-do-i-make-uilabel-display-outlined-text

theContext Helvetica viewBounds.size.height kCGEncodingMacRoman CGContextSetRGBFillColor theContext 1 1 1 1 CGContextSetRGBStrokeColor theContext 0 0 0 1 CGContextSetLineWidth theContext 1.0 ShowStringCentered theContext rect.size.width 2.0 12 self text cStringUsingEncoding..

OpenCV install in xcode

http://stackoverflow.com/questions/12214273/opencv-install-in-xcode

kCGBitmapByteOrderDefault CGContextDrawImage contextRef CGRectMake 0 0 cols rows image.CGImage CGContextSetRGBStrokeColor contextRef 1 0 0 1 CGImageRef cgImage CGBitmapContextCreateImage contextRef UIImage result UIImage imageWithCGImage cgImage..

How to draw a gradient line (fading in/out) with Core Graphics/iPhone?

http://stackoverflow.com/questions/1303855/how-to-draw-a-gradient-line-fading-in-out-with-core-graphics-iphone

to draw a gradient line fading in out with Core Graphics iPhone I know how to draw a simple line CGContextSetRGBStrokeColor context 1.0 1.0 1.0 1.0 CGContextMoveToPoint context x y CGContextAddLineToPoint context x2 y2 CGContextStrokePath context..

How to Unerase the erased UIImage

http://stackoverflow.com/questions/14053563/how-to-unerase-the-erased-uiimage

CGContextSetLineCap context kCGLineCapRound kCGImageAlphaPremultipliedLast CGContextSetLineWidth context 10 CGContextSetRGBStrokeColor context 0 0 0 1.0 CGContextSetBlendMode UIGraphicsGetCurrentContext kCGBlendModeClear CGContextBeginPath context CGContextMoveToPoint..

UINavigationBar gradient details

http://stackoverflow.com/questions/1852319/uinavigationbar-gradient-details

2 CGPointMake 0 self.frame.size.height 0 CGGradientRelease botGradient CGColorSpaceRelease myColorspace top Line CGContextSetRGBStrokeColor context 1 1 1 1.0 CGContextMoveToPoint context 0 0 CGContextAddLineToPoint context self.frame.size.width 0 CGContextStrokePath.. context 0 0 CGContextAddLineToPoint context self.frame.size.width 0 CGContextStrokePath context bottom line CGContextSetRGBStrokeColor context 0 0 0 1.0 CGContextMoveToPoint context 0 self.frame.size.height CGContextAddLineToPoint context self.frame.size.width..

Lag while drawing in ios7

http://stackoverflow.com/questions/19108185/lag-while-drawing-in-ios7

kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext stroke uncommented by prerak CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext red green blue 1.0 CGContextSetBlendMode UIGraphicsGetCurrentContext kCGBlendModeClear CGContextBeginPath.. standardUserDefaults floatForKey @ bluevalue NSLog @ red f redT NSLog @ green f greenT NSLog @ blue f blueT CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext redT greenT blueT 1.0 CGContextSetRGBFillColor UIGraphicsGetCurrentContext redT greenT blueT.. UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext stroke CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext red green blue 1.0 CGContextSetBlendMode UIGraphicsGetCurrentContext kCGBlendModeClear CGContextMoveToPoint..

underline text in UIlabel

http://stackoverflow.com/questions/2711297/underline-text-in-uilabel

from UILabel and override drawRect method void drawRect CGRect rect CGContextRef ctx UIGraphicsGetCurrentContext CGContextSetRGBStrokeColor ctx 207.0f 255.0f 91.0f 255.0f 44.0f 255.0f 1.0f RGBA CGContextSetLineWidth ctx 1.0f CGContextMoveToPoint ctx 0 self.bounds.size.height..

Curve text on existing circle

http://stackoverflow.com/questions/3841642/curve-text-on-existing-circle

CGContextSetTextMatrix context CGAffineTransformIdentity CGContextSelectFont context fontName 18 kCGEncodingMacRoman CGContextSetRGBStrokeColor context ringColorComponents 0 ringColorComponents 1 ringColorComponents 2 ringAlpha CGContextSetLineWidth context ringWidth..

iPad (very) simple drawing

http://stackoverflow.com/questions/3956202/ipad-very-simple-drawing

CGContextSetLineCap UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext 3.0 CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext 0.0 0.0 0.0 1.0 CGContextMoveToPoint UIGraphicsGetCurrentContext point1.x point1.y CGContextAddLineToPoint.. return self void drawRect CGRect rect if self.points.count 0 return CGContextRef context UIGraphicsGetCurrentContext CGContextSetRGBStrokeColor context 1.0 1.0 1.0 1.0 white CGContextSetLineWidth context 1.0 CGPoint firstPoint self.points objectAtIndex 0 CGPointValue..

How To Draw line on touch event?

http://stackoverflow.com/questions/4669490/how-to-draw-line-on-touch-event

invalid context 0x0 2011 01 13 11 20 05.149 DragDrop 536 207 x 0 y 1079902208 Thu Jan 13 11 20 05 .local DragDrop 536 CGContextSetRGBStrokeColor invalid context 0x0 Thu Jan 13 11 20 05 .local DragDrop 536 CGContextDrawPath invalid context 0x0 Thu Jan 13 11 20 05 .local..

How to draw a transparent stroke (or anyway clear part of an image) on the iPhone

http://stackoverflow.com/questions/629409/how-to-draw-a-transparent-stroke-or-anyway-clear-part-of-an-image-on-the-iphon

of the image drawn so far with the finger. I initially did this by using a white color for the stroke set with the CGContextSetRGBStrokeColor function but it didn't work out...because I discovered later that the UIImage on the UIImageView actually had a transparent..

How to draw rectangle?

http://stackoverflow.com/questions/8195095/how-to-draw-rectangle

0 100 320 100 CGContextRef context UIGraphicsGetCurrentContext CGContextSetRGBFillColor context 1.0 0.0 0.0 1.0 CGContextSetRGBStrokeColor context 1.0 0.0 0.0 1.0 CGContextFillRect context rectangle iphone objective c drawrect share improve this question ..

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

draw line between two points in iphone?

http://stackoverflow.com/questions/8208469/draw-line-between-two-points-in-iphone

CGContextSetLineCap UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext 5.0 CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext 1.0 0.0 0.0 1.0 CGContextMoveToPoint UIGraphicsGetCurrentContext lastPoint.x lastPoint.y CGContextAddLineToPoint.. CGContextSetLineCap UIGraphicsGetCurrentContext kCGLineCapRound CGContextSetLineWidth UIGraphicsGetCurrentContext 5.0 CGContextSetRGBStrokeColor UIGraphicsGetCurrentContext 0.0 0.5 0.6 1.0 CGContextBeginPath UIGraphicsGetCurrentContext CGContextMoveToPoint UIGraphicsGetCurrentContext..

Beginner iphone question: drawing a rectangle. What am I doing wrong?

http://stackoverflow.com/questions/970137/beginner-iphone-question-drawing-a-rectangle-what-am-i-doing-wrong

and a small green transparent square void drawRect CGRect rect CGContextRef context UIGraphicsGetCurrentContext CGContextSetRGBStrokeColor context 1.0 1.0 0.0 1.0 yellow line CGContextBeginPath context CGContextMoveToPoint context 50.0 50.0 start point CGContextAddLineToPoint..