CATransform3D 利用m34 修改Z轴

写在一个View的类别中的方法 直接上代码与效果

- (void)setYRotation:(CGFloat)degrees anchorPoint:(CGPoint)point perspectiveCoeficient:(CGFloat)m34 {

CATransform3D transfrom = CATransform3DIdentity;

transfrom.m34 = 1.0 / m34;

CGFloat radiants = degrees / 360.0 * 2 * M_PI;

transfrom = CATransform3DRotate(transfrom, radiants, 0.0f, 1.0f, 0.0f);

CALayer *layer = self.layer;

layer.anchorPoint = point;

layer.transform = transfrom;

}

- (void)setYRotation:(CGFloat)degrees {

[self setYRotation:degrees anchorPoint:CGPointMake(0, 0) perspectiveCoeficient:800];

}

基本和Y类似 就是将要修改的y 位置改为0 将x位置改为1 

- (void)setXRotation:(CGFloat)degrees {

[self setXRotation:degrees anchorPoint:CGPointMake(0.5, 0.5) perspectiveCoeficient:800];

}

- (void)setXRotation:(CGFloat)degrees anchorPoint:(CGPoint)point perspectiveCoeficient:(CGFloat)m34 {

CATransform3D transfrom = CATransform3DIdentity;

transfrom.m34 = 1.0 /m34;

CGFloat radiants = degrees / 360.0 * 2 * M_PI;

transfrom = CATransform3DRotate(transfrom, radiants, 1.0f, 0.0f, 0.0f);

CALayer *layer = self.layer;

layer.anchorPoint = point;

layer.transform = transfrom;

}