如何用UIBezierPath繪製一個傾斜的橢圓

Question

我想用UIBezierPath繪製一個傾斜的橢圓。只有一個方法UIBezierPath.init(ovalInRect: rect)繪製一個橢圓形沒有slop.What我能做什麼來繪製這個？感謝

Answer 1

這裏是一個旋轉的橢圓形的例子：它是在一個遊樂場運行

class MyView: UIView { 
    override func draw(_ rect: CGRect) { 
     // create oval centered at (0, 0) 
     let path = UIBezierPath(ovalIn: CGRect(x: -75, y: -50, width: 150, height: 100)) 

     // rotate it 30 degrees 
     path.apply(CGAffineTransform(rotationAngle: 30 * .pi/180)) 

     // translate it to where you want it 
     path.apply(CGAffineTransform(translationX: self.bounds.width/2, y: self.bounds.height/2)) 

     // set stroke color 
     UIColor.blue.setStroke() 

     // stroke the path 
     path.stroke() 
    } 
} 

let view = MyView(frame: CGRect(x: 0, y: 0, width: 200, height: 200)) 
view.backgroundColor = .white 

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這裏：