protected override Motion GetBeforeMotion(int deltaIndex)
		{
			double aspect = Owner.ElementWidth / Owner.ElementHeight;
			double ItemWidth = aspect;
			double ItemHeight = 1;
			
			int row = -1;
			int column = -1;
			int slot = Math.Abs(deltaIndex);
			if (slot <= 2)
			{
				row = 0;
				column = 2 - slot;
			}
			else
			{
				row = -1 - ((slot - 3) / Columns);
				column = (slot - 3) % Columns;
			}

			Motion m = new Motion();

			m.Angle = 0;
			m.Axis = new Vector3D(1, 0, 0);
			m.X = (column - 2) * (ItemWidth + Owner.ItemGap);
			m.Y = -1 * row * (ItemHeight + Owner.ItemGap);

			return m;
		}

		protected override Motion GetSelectionMotion(int index)
		{
			var m = new Motion {
                           Angle = 0, 
                           Axis = new Vector3D(0, 1, 0), 
                           X = 0, Z = Owner.PopoutDistance
                           };
		    return m;
		}

		protected override Motion GetAfterMotion(int deltaIndex)
		{
			Motion m = new Motion();

			m.X = Owner.ItemGap * deltaIndex;
			m.Z = -1 * Owner.ItemGap * deltaIndex;

			return m;
		}

        protected override Motion GetSelectionMotion()
        {
            Motion m = new Motion();

            m.Axis = new Vector3D(0, 1, 0);
            m.Z = Owner.PopoutDistance;

            return m;
        }

        protected override Motion GetPreviousMotion(int index)
        {
            Motion m = new Motion();

            m.X = -1*Owner.FrontItemGap;
            m.Z = -1*Owner.ItemGap*(Owner.SelectedIndex - index);

            return m;
        }

		protected override Motion GetAfterMotion(int deltaIndex)
		{
			Motion m = new Motion();

			m.X = -1 * Owner.FrontItemGap;
			m.Z = -1 * Owner.ItemGap * deltaIndex + Owner.PopoutDistance * 2 / 3;

			return m;
		}

        protected override Motion GetBeforeMotion(int deltaIndex)
        {
            Motion m = new Motion();

            m.X = -1 * Owner.FrontItemGap;
            m.Z = Owner.ItemGap * deltaIndex;

            return m;
        }

        protected override Motion GetSelectionMotion()
        {
            Motion m = new Motion();

            m.X = -1 * (Owner.ItemGap + Owner.PopoutDistance);
            m.Y = Owner.ItemGap;

            return m;
        }

        protected override Motion GetNextMotion(int index)
        {
            Motion m = new Motion();

            m.X = -1*Owner.FrontItemGap;
            m.Z = Owner.ItemGap*(index - Owner.SelectedIndex);

            return m;
        }

        protected override Motion GetSelectionMotion(int index)
        {
            Motion m = new Motion();

            m.Angle = 0;
            m.Y = 0;
            m.Z = Owner.PopoutDistance;

            return m;
        }

        protected override Motion GetPreviousMotion(int index)
        {
            Motion m = new Motion();

            m.Angle = Owner.TiltAngle;
            m.Axis = new Vector3D(1, 0, 0);
            m.Y = -1*Owner.ItemGap*(Owner.SelectedIndex - index) - Owner.FrontItemGap;

            return m;
        }

		protected override Motion GetAfterMotion(int deltaIndex)
		{
			Motion m = new Motion();

			m.Angle = -1 * Owner.TiltAngle;
			m.Axis = new Vector3D(0, 1, 0);
			m.X = Owner.ItemGap * deltaIndex + Owner.FrontItemGap;

			return m;
		}

        protected override Motion GetBeforeMotion(int deltaIndex)
        {
            Motion m = new Motion();

            m.Angle = Owner.TiltAngle;
            m.Axis = new Vector3D(1, 0, 0);
            m.Y = Owner.ItemGap * deltaIndex - Owner.FrontItemGap;

            return m;
        }

        protected override Motion GetNextMotion(int index)
        {
            Motion m = new Motion();

            m.Angle = -1*Owner.TiltAngle;
            m.Axis = new Vector3D(0, 1, 0);
            m.X = Owner.ItemGap*(index - Owner.SelectedIndex) + Owner.FrontItemGap;

            return m;
        }

        protected override Motion GetPreviousMotion(int index)
        {
            Motion m = new Motion();

            m.Axis = new Vector3D(0, 1, 0);
            m.X = -1*(Owner.FrontItemGap + Owner.ItemGap*(Owner.SelectedIndex - index));
            m.Z = -1*Owner.ItemGap*(Owner.SelectedIndex - index);

            return m;
        }

        protected override Motion GetBeforeMotion(int deltaIndex)
        {
            Motion m = new Motion();

            m.Axis = new Vector3D(0, 1, 0);
            m.X = Owner.FrontItemGap + Owner.ItemGap * deltaIndex;
            m.Z = Owner.ItemGap * deltaIndex;

            return m;
        }

		protected override Motion GetSelectionMotion()
		{
			Motion m = new Motion();

			m.Angle = -1 * 45;
			m.Axis = new Vector3D(0, 0, 1);
			m.X = 2 * Owner.ItemGap;

			return m;
		}

		protected override Motion GetNextMotion(int index)
		{
			var m = new Motion
			            {
			                Angle = -1*Owner.TiltAngle,
			                Axis = new Vector3D(0, 1, 0),
			                X = Owner.ItemGap*(index - Owner.GetPositionIndex(Owner.SelectedIndex)) + Owner.FrontItemGap
			            };
		    return m;
		}

		protected override Motion GetSelectionMotion()
		{
			Motion m = new Motion();

			m.Angle = 0;
			m.Axis = new Vector3D(0, 0, 1);
			m.X = 0;	//Owner.FrontItemGap;
			m.Z = Owner.PopoutDistance;

			return m;
		}

		protected override Motion GetSelectionMotion()
		{
			double angle = Math.PI/2;
			Motion m = new Motion();
			m.X = Radius*Math.Cos(angle);
			m.Z = Owner.PopoutDistance + Radius*Math.Sin(angle);
			m.Y = 0;
			m.Axis = new Vector3D(0, 1, 0);

			return m;
		}