iphone - 2つのUIImageViewをX方向に回転させる

Question

2つの画像を回転させたいのですが、一方の画像をもう一方の画像の後ろに配置しますが、次のコードで画像を回転すると、背面の画像が前面の画像の上になり、ZPOを割り当てますが、変更はありません

回転する前の私のビューのこのリンクhttp://i39.tinypic.com/ivv2ah.png

回転した後http://i43.tinypic.com/ic05xj.png

これがどのように起こるか

 [UIView animateWithDuration:0.2 animations:
     ^{
         CALayer *myLayer=self.image2.layer;
         CABasicAnimation *animation = [CABasicAnimation  animationWithKeyPath:@"transform.rotation.x"];
         animation.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)]; 
         animation.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)]; 
         animation.repeatCount =0; 
         animation.duration=0.2;
         [animation setRemovedOnCompletion:NO];
         animation.timingFunction = [CAMediaTimingFunction
                                     functionWithName:kCAMediaTimingFunctionLinear]; 
         [self.image2.layer addAnimation:animation forKey:@"transform.rotation.x"];
         CATransform3D transform = CATransform3DIdentity;
         transform.m34 = (1/500.0f);
         transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
         myLayer.transform=transform;
     }
   completion:^(BOOL finished) 
     {
         self.image2.postion=@"UP";
     }];


    [UIView animateWithDuration:0.2 animations:
     ^{
         CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.x"];
         animation.fromValue = [NSNumber numberWithFloat:(1 * M_PI/Down)]; 
         animation.toValue = [NSNumber numberWithFloat:(1 * M_PI/UP)]; 
         animation.repeatCount =0;
         animation.duration=0.2;
         [animation setRemovedOnCompletion:NO];
         animation.timingFunction = [CAMediaTimingFunction
                                     functionWithName:kCAMediaTimingFunctionLinear]; 
         [card.layer addAnimation:animation forKey:@"transform.rotation.x"];
         CATransform3D transform = CATransform3DIdentity;
         transform.m34 = (1/500.0f);
         transform = CATransform3DRotate(transform, (1 * M_PI/UP), 1, 0,0);
         card.layer.transform=transform;
     }
    completion:^(BOOL finished) 
     {
         card.postion=@"UP";
     }];

CArdImageはカスタムUIImageViewであり、これは私が変更するものです

- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) 
{
    self.layer.anchorPoint=CGPointMake(0.5, 1.0);
    CATransform3D transform = CATransform3DIdentity;
    transform.m34 = (1/500.0f);
    transform = CATransform3DRotate(transform, (1 * M_PI/2.5), 0.5, 0,0);
    self.layer.transform=transform;
    self.postion=@"UP";
  }
  return self;
 }