Objective-c CATransform3DMakeRotation顺时针/逆时针 [英] Objective-c CATransform3DMakeRotation Clockwise/Counterclockwise

问题描述

我正在使用 CATransform3DMakeRotation 沿 x轴旋转 UIView 下面的代码：

I'm rotating an UIView along the x axis using CATransform3DMakeRotation using the below code:

  float radians = DegreesToRadians(30);
    [UIView animateWithDuration:0.15 animations:^{  
        self.moveControlView.layer.transform = CATransform3DMakeRotation(radians,1,0,0);
    }];

旋转始终以相同的方式应用，而不是（顺时针）。我想在相反的方向旋转 UIView 。
为了实现我的目标，我尝试过：

The rotation is applied always in the same versus (clockwise). I want to rotate the UIView in the opposite versus. In order to achieve my goal I've tried:

• 设置负角（-30）


• 将角度设置为330

但是方向的vs不变。

我还尝试将 x = -1 设置为使角度为正。

I have also try to set x = -1 leaving the angle positive.

有任何建议吗？

推荐答案

您应该对转换应用透视图，如在类似的问题中：

You should apply a perspective to your transform, as it's explained in the similar question:

CATransform3D perspectiveTransform = CATransform3DIdentity;
perspectiveTransform.m34 = 1.0 / -500;

self.moveControlView.layer.transform = 
CATransform3DRotate(perspectiveTransform, radians, 1.0f, 0.0f, 0.0f);;

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