2014/10/15 下午 10:03:35

iphone Programming Glossary: anchor

Rotate MapView using Compass orientation

http://stackoverflow.com/questions/1245461/rotate-mapview-using-compass-orientation

manager didUpdateHeading CLHeading newHeading double rotation newHeading.magneticHeading 3.14159 180 CGPoint anchorPoint CGPointMake 0 23 The anchor point for your pin mapView setTransform CGAffineTransformMakeRotation rotation mapView.. CLHeading newHeading double rotation newHeading.magneticHeading 3.14159 180 CGPoint anchorPoint CGPointMake 0 23 The anchor point for your pin mapView setTransform CGAffineTransformMakeRotation rotation mapView annotations enumerateObjectsUsingBlock.. obj view setTransform CGAffineTransformMakeRotation rotation view setCenterOffset CGPointApplyAffineTransform anchorPoint CGAffineTransformMakeRotation rotation Another sollution is using a new method that has been added in iOS 5 to MKMapView...

Core Animation rotating a layer around arbitrary point

http://stackoverflow.com/questions/199608/core-animation-rotating-a-layer-around-arbitrary-point

point In my case a point that is not inside the layer I want to rotate I prefer doing this without changing the anchor point because unless I get something wrong every time I change the anchor point it also changes the position of the layer... I prefer doing this without changing the anchor point because unless I get something wrong every time I change the anchor point it also changes the position of the layer. I tried something like that but it didn't work UIImageView beginAnimations.. iphone cocoa core animation share improve this question Your solution is fine but the 'expected way' is to use the anchor point. It is moving around when you set the anchor point because the position is attached to the anchor point i.e. setting..

Displaying ppt, doc, and xls in UIWebView doesn't work but pdf does

http://stackoverflow.com/questions/2520137/displaying-ppt-doc-and-xls-in-uiwebview-doesnt-work-but-pdf-does

are bad And just to make sure my PPT DOC and XLS files are indeed ok to display I created a simple html file with anchor tags to the files. When the html file is displayed in Safari on the iPhone clicking on the files displays correctly in Safari...

UIImageView Gestures (Zoom, Rotate) Question

http://stackoverflow.com/questions/3448614/uiimageview-gestures-zoom-rotate-question

class return NO return YES Scale and rotation transforms are applied relative to the layer's anchor point this method moves a gesture recognizer's view's anchor point between the user's fingers void adjustAnchorPointForGestureRecognizer.. rotation transforms are applied relative to the layer's anchor point this method moves a gesture recognizer's view's anchor point between the user's fingers void adjustAnchorPointForGestureRecognizer UIGestureRecognizer gestureRecognizer if gestureRecognizer.state.. locationInView piece CGPoint locationInSuperview gestureRecognizer locationInView piece.superview piece.layer.anchorPoint CGPointMake locationInView.x piece.bounds.size.width locationInView.y piece.bounds.size.height piece.center locationInSuperview..

iPhone - flattening a UIImageView and subviews to image = blank image

http://stackoverflow.com/questions/3869692/iphone-flattening-a-uiimageview-and-subviews-to-image-blank-image

apply the layer's geometry to the graphics context CGContextSaveGState context Center the context around the view's anchor point CGContextTranslateCTM context view center .x view center .y Apply the view's transform about the anchor point CGContextConcatCTM.. view's anchor point CGContextTranslateCTM context view center .x view center .y Apply the view's transform about the anchor point CGContextConcatCTM context view transform Offset by the portion of the bounds left of and above the anchor point CGContextTranslateCTM.. the anchor point CGContextConcatCTM context view transform Offset by the portion of the bounds left of and above the anchor point CGContextTranslateCTM context view bounds .size.width view layer anchorPoint .x view bounds .size.height view layer..

Does SecTrustEvaluate() look for root certificates in the application keychain?

http://stackoverflow.com/questions/4669255/does-sectrustevaluate-look-for-root-certificates-in-the-application-keychain

searches for certificates in the keychain search list see SecTrustSetKeychains and in the system 䏭 store of anchor certificates see SecTrustSetAnchorCertificates . However since SecTrustSetKeychains is not available on iOS it 䏭 not clear..

Moving a Stick figure, anchorpoints, animation, or something else…?

http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else

a Stick figure anchorpoints animation or something else&hellip Ok so I am making a game with stick figures with cocos2d in objective c... Different.. you that have collision detection and die when shot by an arrow sprite. How should I make 1 and 2 move should I master anchor points and use those I really hate stupid anchorpoints they are so hard to get to work... but I'll use these if they are.. by an arrow sprite. How should I make 1 and 2 move should I master anchor points and use those I really hate stupid anchorpoints they are so hard to get to work... but I'll use these if they are better or make tons of animations or is there another..

How can I rotate a UIImageView with respect to any point (other than its center)?

http://stackoverflow.com/questions/839296/how-can-i-rotate-a-uiimageview-with-respect-to-any-point-other-than-its-center

iphone cocoa touch uikit core animation share improve this question One way of doing this is by changing the anchorPoint of the UIImageView's underlying layer and rotating about that. You can change the point of rotation using something.. layer and rotating about that. You can change the point of rotation using something like the following imageView.layer.anchorPoint CGPointMake 0.25 0.25 anchorPoint is defined in terms of relative coordinates within the layer. That is 0 0 is the.. can change the point of rotation using something like the following imageView.layer.anchorPoint CGPointMake 0.25 0.25 anchorPoint is defined in terms of relative coordinates within the layer. That is 0 0 is the upper left of the layer on the iPhone..

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

improve this question I've created a kit for doing this on iOS https github.com hfossli AGGeometryKit Make sure your anchor point is top left CGPointZero . CATransform3D rectToQuad CGRect rect quadTL CGPoint topLeft quadTR CGPoint topRight quadBL..