uibezierpath

I am trying to create custom parallelogram view using UIBezierPath but not getting a perfect one. Following is my custom view code class CustomView: UIView { override func draw(_ rect: CGRect) { let offset = 60.0; let path = UIBezierPath() path.move(to: CGPoint(x: self.frame.origin.x + CGFloat(offset), y: self.frame.origin.y)) path.addLine(to: CGPoint(x: self.frame.width + self.frame.origin.x , y: self.frame.origin.y)) path.addLine(to: CGPoint(x: self.frame.origin.x + self.frame.width - CGFloat(offset) , y: self.frame.origin.y + self.frame.height)) path.addLine(to: CGPoint(x: self.frame.origin

Closed . This question needs to be more focused . It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post . Closed 3 years ago . I've a UIBezierPath drawing this And I want the red point to move on the blue path infinitely (from right to left, from left to right) How can I do that? You can use CAKeyFrameAnimation . Assign your path to the path property of the animation object, then run the animation on the view's layer. Edit : A little snippet as a hint: let path = ... // the UIBezierPath let animation =

I have a code that lets the user draw a shape, I'm using UIBezierPath for this. But I need to see if the shape crosses itself, for example like this: http://upload.wikimedia.org/wikipedia/commons/0/0f/Complex_polygon.svg Then it's not a a valid shape. How can I find this? Edit: I still haven't solved this. I save all the points between the lines in the path in a array. And then I loop through the array and try to find if any lines intersects. But it does not work, sometimes it says that there is an intersection when it isn't. I think that the problem is somewhere in this method. -(BOOL

In SpriteKit, the clockwise direction is reversed for UIBezierPath but not for CGPath . For example, if I have do { let path = CGPathCreateMutable() CGPathAddArc(path, nil, 0, 0, 10, 0, CGFloat(M_PI_2), true) let node = SKShapeNode(path: path) node.position = CGPoint(x: self.size.width/2, y: self.size.height/2) self.addChild(node) } do { let path = UIBezierPath() path.addArcWithCenter(CGPoint(x: 0, y: 0), radius: 10, startAngle: 0, endAngle: CGFloat(M_PI_2), clockwise: true) let node = SKShapeNode(path: path.CGPath) node.position = CGPoint(x: self.size.width/2, y: self.size.height/2 - 100)

I'm trying to clip a UIImage based on a given UIBezierPath , but the resulting image retains the original shape and size. I want the shape and size to resemble the path, i.e. the visible content of the new image. Take a look at this following example: The following is the code I am using to mask an image given a path: func imageByApplyingClippingBezierPath(_ path: UIBezierPath) -> UIImage { UIGraphicsBeginImageContextWithOptions(CGSize( width: size.width, height: size.height ), false, 0.0) let context = UIGraphicsGetCurrentContext()! context.saveGState() path.addClip() draw(in: CGRect(x: 0, y: