private void initializeCeiling(BorderPane root) { ceiling = new Ellipse(); ceiling.centerXProperty().bind(root.widthProperty().multiply(0.35)); ceiling.centerYProperty().bind(root.heightProperty().multiply(0.1)); ceiling.radiusXProperty().bind(root.widthProperty().multiply(0.5)); ceiling.radiusYProperty().bind(root.heightProperty().multiply(0.25)); }