rotation

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Rectangle Rotation and Flipping

I have a bitmap with a Rectangle object that is drawn on top of it.I want to be able to Rot开发者_开发技巧ateFlip the bitmap and adjust the x, y, width, and height of the Rectangle so that it lines up[详细]

2023-03-30 16:06 分类：问答
Rotate square imageView in ScrollView

I have a gallery of UIImageViews (that are SQUARE) declared as subviews of UIScrollView: int size = self.view.frame.size.width/number;[详细]

2023-03-30 03:11 分类：问答
Odd iPad rotation effect

I have a pretty standard iPad application that is setup to only be landscape.To affect this, I have set the initial interface orientation to landscape, and the support interface orientations to just t[详细]

2023-03-30 01:58 分类：问答
Facebook dialog not rotating when keyboard up

I\'m having a problem with FBDialog. Apparently after the either the email or the password textFields become first responders and keyboard comes up, the FBDialog view no longer reacts to changing the[详细]

2023-03-29 22:26 分类：问答
Car / Vehicle Drifting Around Corners in Overhead Racing Game

I\'ve implemented a pretty basic car movement system: _velocity.x = Math.cos(angleAsRadians) * _speed;[详细]

2023-03-29 19:50 分类：问答
Scale sprite according rotation. How to calculate it correctly for my situation? [Math-iphone-cocos2d]

At first: I\'m using cocos2d for iphone. But this isn\'t so important for this question. My problem is now...I want to scale a sprite on the Y axis. I can do that with this function:[详细]

2023-03-29 16:08 分类：问答
Rotate a set of object coordinates

I have a bunch of开发者_C百科 objects (ActiveRecord) that have x and y coordinates relative to a HTML5 canvas element. I need to rotate sets of them by different number of degrees (in 90 degrees incre[详细]

2023-03-29 09:45 分类：问答
How to make a image spin/rotate around the z axis

I would like to spin/rotate my Logo(Image) on the Z axis. This is the code i have so far: <Image Name=\"logo\"Grid.Row=\"1\" Grid.Column=\"0\" Source=\"someLogoPath\" Width=\"140\" Height=\"140\"[详细]

2023-03-29 09:22 分类：问答
Rotating one vector to face another but slowly?

I have t开发者_开发百科wo vectors: heading and target.How can I turn heading to face target by some factor?Say 10% every frame or something.[详细]

2023-03-29 08:27 分类：问答
Obatining Rotation Matrix from glRotatef() in opengl

Is there a way to get the r开发者_C百科otation matrix which is generated by command glRotatef() in opengl?No, but you can get the current matrix with glGetFloatv. If you want just the rotation matrix,[详细]

2023-03-29 06:02 分类：问答