         }
     }
     
+    /// triggered when touches move
     override public func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
         touchesMoved = true
         if let touch = touches.first {

        }
    }
    
    /// drawLine: draws a stroke
    /// - Parameter: stroke: the stroke to be drawn
    /// - Returns: Void
    private func drawLine(stroke: Stroke) -> Void {
        let properties = stroke.properties
        let array = stroke.points

        mergeViews()
    }
    
    /// draws a line from one point to another with certain properties
    private func drawLineFrom(fromPoint: CGPoint, toPoint: CGPoint, properties: BrushProperties) -> Void {
        
        UIGraphicsBeginImageContext(self.frame.size)
