Z方向UIview旋转？

Question

我使用下面的代码用于旋转Z方向右side.but的UIView.it rotatres我想旋转底部,而不是右侧.(因为它是在右侧),任何帮助吗？(在Z轴换句话说方向)

 UIView *myView = self.view;
CALayer *layer = myView.layer;

CATransform3D transform = CATransform3DIdentity;
transform.m34 = 1.0 / -2000;

CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;
rotationAndPerspectiveTransform.m34 = 1.0 / -500;
rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, 45.0f * M_PI / 180.0f, 0.0f, 1.0f, 0.0f);
layer.transform = rotationAndPerspectiveTransform;

Answer 1

你看过这个CATransform3DRotate函数的参数了吗？

最后三个元素定义视图将翻转的向量.您的矢量与y轴平行.试着这样做,绕着垂直轴旋转.

 rotationAndPerspectiveTransform = CATransform3DRotate(
            rotationAndPerspectiveTransform, 
            45.0f * M_PI / 180.0f,
            1.0f, 0.0f, 0.0f);

您可能需要更改锚点以使轴在右侧"高度".