I am developing a game in which my Locomotive is following a UIBezierPath that mimics an oval shaped Track. The math of the following is not adding up .. if it is, I am obviously not understanding the math of the layout. Bottom line = the following code does not display the UIBezierPath. Here's the code that creates this UIBezierPath .. please note the math in the comments: func createTrainPath() { trackRect = CGRect(x: 0.0, y: 0.0 - roomHeight/2 + tracksHeight, width: tracksWidth, height: tracksHeight) // trackRect = (0.0, -207.0, 940.0, 476.0) // portrait // trackRect = (0.0, -274.0, 470.0, 238.0) // landscape print(trackRect = (trackRect!)) trackPath = UIBezierPath(ovalIn: trackRect) let theTrackShapeNode = SKShapeNode(path: trackPath.cgPath, centered: true) theTrackShapeNode.zPosition = 100 // for testing theTrackShapeNode.position = myTracks.position theTrackShapeNode.lineWidth = 4.0 theTrackShapeNode.strokeColor = SKColor.blue if let ourScene = GameScene(fileNamed: GameScene) { print(here) // this shows