rotation - w3toppers.com

iOS 6 UITabBarController supported orientation with current UINavigation controller

Subclass your UITabBarController overriding these methods: -(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // You do not need this method if you are not supporting earlier iOS Versions return [self.selectedViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation]; } -(NSUInteger)supportedInterfaceOrientations { return [self.selectedViewController supportedInterfaceOrientations]; } -(BOOL)shouldAutorotate { return YES; } Subclass your UINavigationController overriding these methods: -(NSUInteger)supportedInterfaceOrientations { return [self.topViewController supportedInterfaceOrientations]; } -(BOOL)shouldAutorotate { return YES; } … Read more

Tetris Piece Rotation Algorithm

When I was trying to figure out how rotations would work for my tetris game, this was the first question that I found on stack overflow. Even though this question is old, I think my input will help others trying to figure this out algorithmically. First, I disagree that hard coding each piece and rotation … Read more

How to rotate image in picture box

You’ll have to use Timer to create rotation of the Image. There is no built in method exists for rotation. Create a global timer: Timer rotationTimer; Initialize timer in the constructor of the form and create PictureBox MouseEnter and MouseLeave events: //initializing timer rotationTimer = new Timer(); rotationTimer.Interval = 150; //you can change it to … Read more

Rotating a view in layoutSubviews

The problem with the code in the question seems to be that the transformations keep getting added to each other. In order to fix this, the solution is to reset the transformations every time, that is, set it to the identity transform. rotationView.transform = CGAffineTransformIdentity Here is a partial implementation that shows the key parts. … Read more

Rotate Point around pivot Point repeatedly

Your Point position measure is off because of the integer rounding generated by the RotatePoint() method. A simple correction in the method returned value, using float coordinates, will produce the correct measure: To test it, create a Timer and register its Tick event as RotateTimerTick(): Added a rotation spin increment (see the rotationSpin Field) to … Read more

Get bounds of rotated rectangle

Known data: bounding box width W, height H, rotation angle Fi Wanted: coordinates of rotated rectangle vertices. Unknown source rectangle size: w x h Bounding box size for this dimension and rotation angle: H = w * Abs(Sin(Fi)) + h * Abs(Cos(Fi)) W = w * Abs(Cos(Fi)) + h * Abs(Sin(Fi)) denote as = Abs(Sin(Fi)) … Read more

Extract arbitrarily rotated plane of data from 3D array as 2D array

You can take a look at the code here. I think the function is similar to what you are trying to solve. The function extracts an arbitrary plane from a volume given the size of the plane, the center point of the plane, and the plane normal, i.e. [A,B,C]. It also outputs the volumetric index … Read more

UITabBarController Rotation Issues in ios 6

Zack, I ran into this same issue. It’s because you have your viewController embedded inside of a TabBar Controller or UINavigationController and the calls to these methods are happening inside those instead of your normal View (Changed in iOS6). I ran into this issue because I was presenting a viewController embedded inside a UINavigationController on … Read more

Python Array Rotation

You can rotate a list in place in Python by using a deque: >>> from collections import deque >>> d=deque([1,2,3,4,5]) >>> d deque([1, 2, 3, 4, 5]) >>> d.rotate(2) >>> d deque([4, 5, 1, 2, 3]) >>> d.rotate(-2) >>> d deque([1, 2, 3, 4, 5]) Or with list slices: >>> li=[1,2,3,4,5] >>> li[2:]+li[:2] [3, 4, … Read more

Rotation only in one ViewController

I’d recommend using supportedInterfaceOrientationsForWindow in your appDelegate to allow rotation only in that specific view controller, ex: Swift 4/Swift 5 func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask { // Make sure the root controller has been set // (won’t initially be set when the app is launched) if let navigationController = window?.rootViewController as? … Read more