2014/10/15 下午 10:03:36

iphone Programming Glossary: angle

iOS Image Orientation has Strange Behavior

http://stackoverflow.com/questions/10600613/ios-image-orientation-has-strange-behavior

which is generally ignored by other OS but Mac. Most of images taken are having their meta data property set to right angle. So Mac shows it 90 degree rotated manner. You can see the same image in proper way in windows OS. For more detail read..

iPhone Curl Left and Curl Right transitions

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

to do curls in any of the four directions by using a container view. Set the container view's transformation to the angle you want and then do the curl by adding your view to the container view not your app's main view which does not have a transformed.. UIView alloc initWithFrame 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..

iPhone 4 Camera Specifications - Field of View / Vertical-Horizontal Angle

http://stackoverflow.com/questions/3594199/iphone-4-camera-specifications-field-of-view-vertical-horizontal-angle

field of view values for the new iPhone4 camera I'm doing some AR app's and I want to know the horizontal and vertical angle of the rear camera. Thanks iphone camera augmented reality iphone 4 share improve this question If the sensor is 3.39..

Curve text on existing circle

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

curving a text that you have to split up your text in characters and draw each character on it's own with the right angle in mind by rotating the context you are drawing on . I just can't wrap my head around on how to get the right angles and.. angle in mind by rotating the context you are drawing on . I just can't wrap my head around on how to get the right angles and positions for my characters. I included a screenshot on what the menu at the moment look like. Only the texts I added.. Fixed Check out the following code void drawStringAtContext CGContextRef context string NSString text atAngle float angle withRadius float radius CGSize textSize text sizeWithFont self.menuItemsFont float perimeter 2 M_PI radius float textAngle..

how can I use animation in cocos2d?

http://stackoverflow.com/questions/486609/how-can-i-use-animation-in-cocos2d

direction. That is the pi radian 180 degree rotation here goes a half circle but if you used 1.5f pi for your rotation angle it would only go a quarter circle. Likewise if you used 0.999f pi the circle would rotate in a clockwise manner. You'll..

Can I use CGAffineTransformMakeRotation to rotate a view more than 360 degrees?

http://stackoverflow.com/questions/542739/can-i-use-cgaffinetransformmakerotation-to-rotate-a-view-more-than-360-degrees

scale M_PI player setTransform swirl player setAlpha 0.0f But I find that if I try to change the angle of the rotation to say 4 M_PI it doesn't rotate at all. Is it possible to get a 720 rotation using CGAffineTransformRotate..

iPhone 4 Camera Specifications - Field of View / Vertical-Horizontal Angle

http://stackoverflow.com/questions/3594199/iphone-4-camera-specifications-field-of-view-vertical-horizontal-angle

4 Camera Specifications Field of View Vertical Horizontal Angle Does someone know the field of view values for the new iPhone4 camera I'm doing some AR app's and I want to know the horizontal..

iphone - core motion (relative rotation)

http://stackoverflow.com/questions/5053793/iphone-core-motion-relative-rotation

some handy built in functionality to convert a CMAttitude to a form that is actually useful for something like Euler Angles a rotation matrix or a quaternion. You sound like you're looking for the Euler Angle representation Pitch Yaw Roll . share..

Rotate image on center using one finger touch

http://stackoverflow.com/questions/5468559/rotate-image-on-center-using-one-finger-touch

The angle of the rotation is increase so i can not set the value. Can any one help me The code is below float fromAngle atan2 firstLoc.y imageView.center.y firstLoc.x imageView.center.x NSLog @ From angle f fromAngle float toAngle atan2 currentLoc.y.. is below float fromAngle atan2 firstLoc.y imageView.center.y firstLoc.x imageView.center.x NSLog @ From angle f fromAngle float toAngle atan2 currentLoc.y imageView.center.y currentLoc.x imageView.center.x NSLog @ to Angle f toAngle So the angle.. fromAngle atan2 firstLoc.y imageView.center.y firstLoc.x imageView.center.x NSLog @ From angle f fromAngle float toAngle atan2 currentLoc.y imageView.center.y currentLoc.x imageView.center.x NSLog @ to Angle f toAngle So the angle to rotate..

Detect iPhone screen orientation

http://stackoverflow.com/questions/999686/detect-iphone-screen-orientation

accelerationY 1.0 kfilteringFactor float currentRawReading atan2 accelerationY accelerationX 180 M_PI NSLog @ Angle f currentRawReading Sample from log while phone is flat 2009 06 16 17 29 07.987 373 207 Angle 0.162292 2009 06 16 17 29.. 180 M_PI NSLog @ Angle f currentRawReading Sample from log while phone is flat 2009 06 16 17 29 07.987 373 207 Angle 0.162292 2009 06 16 17 29 07.994 373 207 Angle 179.838547 2009 06 16 17 29 08.014 373 207 Angle 179.836182 2009 06 16 17.. Sample from log while phone is flat 2009 06 16 17 29 07.987 373 207 Angle 0.162292 2009 06 16 17 29 07.994 373 207 Angle 179.838547 2009 06 16 17 29 08.014 373 207 Angle 179.836182 2009 06 16 17 29 08.032 373 207 Angle 90.000000 2009 06 16 17..