         return transform
     }
     
-    public static let TransformHelix = { (layer: CALayer) -> CATransform3D in
+    private static let transformHelix = { (layer: CALayer) -> CATransform3D in
         var transform = CATransform3DIdentity
         transform = CATransform3DTranslate(transform, 0.0, layer.bounds.size.height/2.0, 0.0)
         transform = CATransform3DRotate(transform, CGFloat(Double.pi), 0.0, 1.0, 0.0)


public class CellAnimator {
    
    public static let TransformTipIn = { (layer: CALayer) -> CATransform3D in
        let rotationDegrees: CGFloat = -15.0
        let rotationRadians: CGFloat = rotationDegrees * (CGFloat(Double.pi)/180.0)
        let offset = CGPoint(x: -20, y: -20)

        return transform
    }
    
    private static let transformFan = { (layer: CALayer) -> CATransform3D in
        var transform = CATransform3DIdentity
        transform = CATransform3DTranslate(transform, -layer.bounds.size.width/2.0, 0.0, 0.0)
        transform = CATransform3DRotate(transform, -CGFloat(Double.pi)/2.0, 0.0, 0.0, 1.0)
