2014/10/15 下午 10:11:53

iphone Programming Glossary: m_pi_2

how to export video asset via AVAssetExportSession in portrait mode

http://stackoverflow.com/questions/10034337/how-to-export-video-asset-via-avassetexportsession-in-portrait-mode

transform to the video track of your composition CGAffineTransform rotationTransform CGAffineTransformMakeRotation M_PI_2 CGAffineTransform rotateTranslate CGAffineTransformTranslate rotationTransform 360 0 videoTrack.preferredTransform rotationTransform..

iOS Paper fold (origami / accordion) effect animation, with manual control

http://stackoverflow.com/questions/11157888/ios-paper-fold-origami-accordion-effect-animation-with-manual-control

origamiLayer for int b 0 b folds 2 b CGRect imageFrame if direction XYOrigamiDirectionFromRight if b 0 startAngle M_PI_2 else if b 2 startAngle M_PI else startAngle M_PI imageFrame CGRectMake frameWidth b 1 foldWidth 0 foldWidth frameHeight.. else startAngle M_PI imageFrame CGRectMake frameWidth b 1 foldWidth 0 foldWidth frameHeight else if b 0 startAngle M_PI_2 else if b 2 startAngle M_PI else startAngle M_PI imageFrame CGRectMake b foldWidth 0 foldWidth frameHeight CATransformLayer..

iOS - trying to rotate a text label and the label disappears

http://stackoverflow.com/questions/14291600/ios-trying-to-rotate-a-text-label-and-the-label-disappears

touch rotation uilabel share improve this question I am not 100 sure if it works or not but why are you not using M_PI_2 . It's just simple thought that you are assuming Value of Pi to be 3.14 but the exact value is 3.14159... I did it like.. UIColor blackColor lbl.font UIFont systemFontOfSize 12 lbl.transform CGAffineTransformMakeRotation M_PI_2 self.view addSubview lbl You can also check Answers from these Questions How to Render a rotated UIlabel Rotating UILabel..

iPhone Curl Left and Curl Right transitions

http://stackoverflow.com/questions/1625375/iphone-curl-left-and-curl-right-transitions

parent.bounds autorelease containerView.transform CGAffineTransformMakeRotation your angle here should probably be M_PI_2 some integer parent addSubview containerView UIView beginAnimations nil context nil UIView setAnimationTransition UIViewAnimationTransitionCurlUp..

Automatically Sizing UIView after Adding to Window

http://stackoverflow.com/questions/2659400/automatically-sizing-uiview-after-adding-to-window

case UIInterfaceOrientationPortraitUpsideDown angle M_PI break case UIInterfaceOrientationLandscapeLeft angle M_PI_2 break case UIInterfaceOrientationLandscapeRight angle M_PI_2 break default angle 0.0 break return angle UIInterfaceOrientationMask.. M_PI break case UIInterfaceOrientationLandscapeLeft angle M_PI_2 break case UIInterfaceOrientationLandscapeRight angle M_PI_2 break default angle 0.0 break return angle UIInterfaceOrientationMask UIInterfaceOrientationMaskFromOrientation UIInterfaceOrientation..

how to control orientation of video assembled with AVMutableComposition

http://stackoverflow.com/questions/4175060/how-to-control-orientation-of-video-assembled-with-avmutablecomposition

CGAffineTransformMakeTranslation 0 320 CGAffineTransform rotateBy90Degrees CGAffineTransformMakeRotation M_PI_2 CGAffineTransform shrinkWidth CGAffineTransformMakeScale 0.66 1 needed because Apple does a stretch by default really we..

cocos2d: playing a video in the background of a menu

http://stackoverflow.com/questions/4454758/cocos2d-playing-a-video-in-the-background-of-a-menu

manually moviePlayer setFullscreen YES animated YES moviePlayer.view setTransform CGAffineTransformMakeRotation float M_PI_2 CGSize winSize CCDirector sharedDirector winSize moviePlayer.view.frame CGRectMake 0 0 winSize.height winSize.width width..

iOS UIImagePickerController result image orientation after upload

http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload

transform CGAffineTransformTranslate transform self.size.width 0 transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationRight case UIImageOrientationRightMirrored transform CGAffineTransformTranslate transform 0.. transform CGAffineTransformTranslate transform 0 self.size.height transform CGAffineTransformRotate transform M_PI_2 break case UIImageOrientationUp case UIImageOrientationUpMirrored break switch self.imageOrientation case UIImageOrientationUpMirrored..

How to programmatically rotate image by 90 Degrees in iPhone? [duplicate]

http://stackoverflow.com/questions/5581241/how-to-programmatically-rotate-image-by-90-degrees-in-iphone

Rotating an image 90 degrees on same position when orientation changes

http://stackoverflow.com/questions/6404786/rotating-an-image-90-degrees-on-same-position-when-orientation-changes

statusBarOrientation UIInterfaceOrientationPortraitUpsideDown break case UIDeviceOrientationLandscapeLeft rotation M_PI_2 statusBarOrientation UIInterfaceOrientationLandscapeRight break case UIDeviceOrientationLandscapeRight rotation M_PI_2.. statusBarOrientation UIInterfaceOrientationLandscapeRight break case UIDeviceOrientationLandscapeRight rotation M_PI_2 statusBarOrientation UIInterfaceOrientationLandscapeLeft break CGAffineTransform transform CGAffineTransformMakeRotation..

Iphone development viewcontroller portrait to landscape no autorotate

http://stackoverflow.com/questions/6492085/iphone-development-viewcontroller-portrait-to-landscape-no-autorotate

.statusBarOrientation UIInterfaceOrientationLandscapeRight CGAffineTransform rotate CGAffineTransformMakeRotation M_PI_2 self.view setTransform rotate CGRect contentRect CGRectMake 0 0 480 320 self.view.frame contentRect self.view setCenter..

Problems with legend in Core-Plot (pieChart)

http://stackoverflow.com/questions/7253533/problems-with-legend-in-core-plot-piechart

self piePlot.delegate self piePlot.pieRadius 80.0 piePlot.identifier @ Pie Chart 2 piePlot.startAngle M_PI_2 piePlot.sliceDirection CPTPieDirectionClockwise piePlot.borderLineStyle CPTLineStyle lineStyle piePlot.sliceLabelOffset..

When Do You Need To Reset the view.frame Property After a Transformation iOS

http://stackoverflow.com/questions/7772016/when-do-you-need-to-reset-the-view-frame-property-after-a-transformation-ios

loadNibNamed @ TableViewCell owner self options nil CGAffineTransform rotateTable CGAffineTransformMakeRotation M_PI_2 self.tableViewCell.horizontalTableView.transform rotateTable self.tableViewCell.horizontalTableView.frame CGRectMake 0 0.. options nil cell self.gameTableCell self.gameTableCell nil CGAffineTransform rotateImage CGAffineTransformMakeRotation M_PI_2 cell.transform rotateImage return cell I tried resetting the cell's frame and it had no effect on the output even if I supplied..