构建一个由6面组成的立方体:每一面都是一个CALayer,然后每个CALayer作为子视图添加到(6)CATransformLayers(以启用3d转换)。 这6个CATransformLayers作为子视图添加到单个CATransformLayer。当我旋转这个单一的CATransformLayer将整个立方体保存为一个包时,一切正常,我将锚点设置为0,0,并将anchorpointZ设置为立方体的中间:立方体完美地围绕其中心旋转。沿定位点旋转CATransformLayer
问题: 我想“展开”当前面的4个相邻边,这意味着左侧,右侧,上方和下方的侧面向用户旋转90 *,但仍然粘在面向用户。为此,我例如将当前侧上方的anchorpointZ设置为0,将定位点设置为(0.5,1),以便定位点基本上是公共边的中间。
设置立方体:
transformLayer = [CATransformLayer layer];
transformLayer.position = CGPointMake([UIScreen mainScreen].bounds.size.width/2,[UIScreen mainScreen].bounds.size.height/2);
CGRect layerRect = CGRectMake(0.0, 0.0, 150, 150); //frame rect for cube sides
CGPoint screenCenter = CGPointMake(self.transformLayer.bounds.size.width/2, self.transformLayer.bounds.size.height/2);
//side1
side1 = [CALayer layer];
side1.borderColor = [UIColor colorWithHue:0.6 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side1.backgroundColor = [UIColor colorWithHue:0.6 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side1.borderWidth = 2.0;
side1.cornerRadius = 30.0;
side1.frame = layerRect;
side1.position = screenCenter;
side1t = [CATransformLayer layer];
[side1t addSublayer:side1];
//side2
side2 = [CALayer layer];
side2.borderColor = [UIColor colorWithHue:0.25 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side2.backgroundColor = [UIColor colorWithHue:0.25 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side2.borderWidth = 2.0;
side2.cornerRadius = 30.0;
side2.frame = layerRect;
side2.position = screenCenter;
//positioning
CATransform3D rotation = CATransform3DMakeRotation(M_PI/2, 0.0, 1.0, 0.0);
CATransform3D translation = CATransform3DMakeTranslation(150/2, 0.0, 150/-2);
CATransform3D position = CATransform3DConcat(rotation, translation);
side2.transform = position;
side2t = [CATransformLayer layer];
[side2t addSublayer:side2];
//side3
side3 = [CALayer layer];
side3.borderColor = [UIColor colorWithHue:0.0 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side3.backgroundColor = [UIColor colorWithHue:0.0 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side3.borderWidth = 2.0;
side3.cornerRadius = 30.0;
side3.frame = layerRect;
side3.position = screenCenter;
//positioning
translation = CATransform3DMakeTranslation(0.0, 0.0, -150); //150
side3.transform = translation;
side3t = [CATransformLayer layer];
[side3t addSublayer:side3];
//side4
side4 = [CALayer layer];
side4.borderColor = [UIColor colorWithHue:0.2 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side4.backgroundColor = [UIColor colorWithHue:0.2 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side4.borderWidth = 2.0;
side4.cornerRadius = 30.0;
side4.frame = layerRect;
side4.position = screenCenter;
//positioning
rotation = CATransform3DMakeRotation(M_PI/2, 0.0, 1.0, 0.0);
translation = CATransform3DMakeTranslation(150/-2, 0.0, 150/-2);
side4.transform = CATransform3DConcat(rotation, translation);
side4t = [CATransformLayer layer];
[side4t addSublayer:side4];
//side5
side5 = [CALayer layer];
side5.borderColor = [UIColor colorWithHue:0.8 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side5.backgroundColor = [UIColor colorWithHue:0.8 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side5.borderWidth = 2.0;
side5.cornerRadius = 30.0;
side5.frame = layerRect;
side5.position = screenCenter;
//positioning
rotation = CATransform3DMakeRotation(M_PI/2, 1.0, .0, 0.0);
translation = CATransform3DMakeTranslation(0.0, 150/-2, 150/-2);
side5.transform = CATransform3DConcat(rotation, translation);
side5t = [CATransformLayer layer];
[side5t addSublayer:side5];
//side6
side6 = [CALayer layer];
side6.borderColor = [UIColor colorWithHue:0.0845 saturation:1.0 brightness:1.0 alpha:1.0].CGColor;
side6.backgroundColor = [UIColor colorWithHue:0.0845 saturation:1.0 brightness:1.0 alpha:0.8].CGColor;
side6.borderWidth = 2.0;
side6.cornerRadius = 30.0;
side6.frame = layerRect;
side6.position = screenCenter;
//positioning
rotation = CATransform3DMakeRotation(M_PI/2, 1.0, .0, 0.0);
translation = CATransform3DMakeTranslation(0.0, 150/2, 150/-2);
side6.transform = CATransform3DConcat(rotation, translation);
side6t = [CATransformLayer layer];
[side6t addSublayer:side6];
[self.transformLayer addSublayer:side1t];
[self.transformLayer addSublayer:side2t];
[self.transformLayer addSublayer:side3t];
[self.transformLayer addSublayer:side4t];
[self.transformLayer addSublayer:side5t];
[self.transformLayer addSublayer:side6t];
self.transformLayer.anchorPointZ = -150/2;
[self.layer addSublayer: transformLayer];
这部分不工作。旋转角度(90°)是正确的,但侧面会完全错误位置,在当前侧(z坐标)前面的立方体大小的一半,并覆盖xy空间中的前侧的一半,请参阅屏幕截图
-(void)unfoldUpperSide {
[CATransaction begin];
[CATransaction setAnimationDuration: 3.0];
side5t.anchorPoint = CGPointMake(0.5, 0);
side5t.anchorPointZ = 0;
side5t.transform = CATransform3DMakeRotation(-M_PI/2, 1, 0, 0);
[CATransaction commit];
}
我被困在这整整一天,希望有人能帮助我..!