title: How to add multiple bezier paths into same view swift 3
body: <p>I have added a triangle in this way</p>
  
  <pre><code>// draw the line graph
  
      UIColor.white.setFill()
      UIColor.white.setStroke()
  
      ///--------SETUP FIRST TRIANGLE-----------------------------------------------
      //set up the points line
      let graphPath = UIBezierPath()
      //go to start of line
      graphPath.move(to: CGPoint.init(x: rect.minX, y: rect.minY))
      graphPath.addLine(to: CGPoint.init(x: (rect.maxX/2.0), y: (rect.maxY/2.0)))
      graphPath.addLine(to: CGPoint.init(x: rect.minX, y: rect.maxY))
      graphPath.stroke()
      //2 - make a copy of the path
      let clippingPath = graphPath.copy() as! UIBezierPath
  
      //3 - add lines to the copied path to complete the clip area
      clippingPath.addLine(to: CGPoint.init(x: rect.minX, y: rect.minY))
      clippingPath.close()
  
      //4 - add the clipping path to the context
      clippingPath.addClip()
  
      let startPoint = CGPoint(x:(rect.maxX/2.0), y: (rect.maxY/2.0))
      let endPoint = CGPoint(x:rect.minX, y:(rect.maxY/2.0))
      let gradient=self.getGradient(tiangleNo: 1)
      let context = UIGraphicsGetCurrentContext()
      context!.drawLinearGradient(gradient, start: startPoint, end: endPoint, options: CGGradientDrawingOptions(rawValue: 0))
  </code></pre>
  
  <p>This is drawing a triangle that I wanted. Now I want to draw another triangle. So I did like this.</p>
  
  <pre><code>///------------SECOND TRIANGLE -----------------------------------------------
  
  
      let graphPath2 = UIBezierPath()
  
      graphPath2.move(to: CGPoint.init(x: rect.minX, y: rect.minY))
      graphPath2.addLine(to: CGPoint.init(x: rect.maxX, y: rect.minY))
      graphPath2.addLine(to: CGPoint.init(x: (rect.maxX/2.0), y: (rect.minY/2.0)))
      graphPath2.stroke()
  
      let oldPath1=clippingPath.copy() as! UIBezierPath
      oldPath1.append(graphPath2)
  
      let startPoint2 = CGPoint(x:(rect.maxX/2.0), y: (rect.maxY/2.0))
      let endPoint2 = CGPoint(x:(rect.maxX/2.0), y:rect.minY)
      let gradient2=self.getGradient(tiangleNo: 2)
      let context2 = UIGraphicsGetCurrentContext()
      context2!.drawLinearGradient(gradient2, start: startPoint2, end: endPoint2, options: CGGradientDrawingOptions(rawValue: 0))
  </code></pre>
  
  <p>But this just adding a triangle inside the previous one.<code>rect</code>is the my UIScreen rectangle</p>