Swift-transform、transform3D属性

transform

1. 基于View的形变

      UIView.animate(withDuration: 5.0, animations: {
          //每次形变都是针对原点
          self.childView.transform = CGAffineTransform(translationX: 50, y: 50)
          self.childView.transform = CGAffineTransform(scaleX: 0.5, y: 0.5)
          self.childView.transform = CGAffineTransform(rotationAngle: 0.5)
          //self.parentV.transform = CGAffineTransform.identity.translatedBy(x: -100, y: 0).rotated(by: 0.5).scaledBy(x: 0.5, y: 0.5)

      }) { (complete) in
          kLog("移动完成")
          //可在已经形变的基础上做形变
          self.childView.transform = self.parentV.transform.translatedBy(x: 50, y: 50)
          self.childView.transform = self.parentV.transform.scaledBy(x: 0.5, y: 0.5)
          self.childView.transform = self.parentV.transform.rotated(by: 0.5)
      }

CoreGraphics库中CGAffineTransform初始化及用法

transform3D

1. 基于View的形变

UIView.animate(withDuration: 5.0, animations: {
            //以初始位置为基准，x轴y轴z轴移动相应d单位（平面上看不出z轴的变化）
            self.parentV.transform3D = CATransform3DMakeTranslation(50, 50, 50)
            //以初始位置为基准，x轴y轴z轴移动相应缩放比例（平面上看不出z轴的变化）
            self.parentV.transform3D = CATransform3DMakeScale(0.5, 0.5, 0.5)
            //以初始位置为基准，当x,y,z值为0时,代表在该轴方向上不进行旋转,当值为1时,代表在该轴方向上进行逆时针旋转,当值为-1时,代表在该轴方向上进行顺时针旋转
            self.parentV.transform3D = CATransform3DMakeRotation(CGFloat(M_PI), 0, 1, 0)
            
        }) { (complete) in
            kLog("移动完成")
            //可在已经形变的基础上做形变
            self.parentV.transform3D = CATransform3DTranslate(self.parentV.transform3D, 50, 50, 50)
            self.parentV.transform3D = CATransform3DScale(self.parentV.transform3D, 0.5, 0.5, 0.5)
            self.parentV.transform3D = CATransform3DRotate(self.parentV.transform3D, CGFloat(M_PI), 0, 1, 0)
        }

2. 基于layer的形变

UIView.animate(withDuration: 5.0, animations: {
            //每次形变都是针对原点
            self.parentV.layer.transform = CATransform3DMakeScale(0.5, 0.5, 0.5)
            self.parentV.layer.transform = CATransform3DMakeRotation(180, 1, 0, 0)
            self.parentV.layer.transform = CATransform3DMakeTranslation(10, 10, 0)
        }) { (complete) in
            kLog("移动完成")
            //可在已经形变的基础上做形变
            self.parentV.layer.transform = CATransform3DScale(self.parentV.layer.transform, 0.5, 0.5, 0.5)
            self.parentV.layer.transform = CATransform3DRotate(self.parentV.layer.transform, 180, 1, 0, 0)
            self.parentV.layer.transform = CATransform3DTranslate(self.parentV.layer.transform, 10, 10, 0)
        }