using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;



namespace Microsoft.Research.DynamicDataDisplay

{

	/// <summary>

	/// Represents a DataTransform that simply swaps points' coefficitiens from x to y and vice verca.

	/// </summary>

	public sealed class SwapTransform : DataTransform

	{

		/// <summary>

		/// Initializes a new instance of the <see cref="SwapTransform"/> class.

		/// </summary>

		public SwapTransform() { }



		/// <summary>

		/// Transforms the point in data coordinates to viewport coordinates.

		/// </summary>

		/// <param name="pt">The point in data coordinates.</param>

		/// <returns>

		/// Transformed point in viewport coordinates.

		/// </returns>

		public override Point DataToViewport(Point pt)

		{

			return new Point(pt.Y, pt.X);

		}



		/// <summary>

		/// Transforms the point in viewport coordinates to data coordinates.

		/// </summary>

		/// <param name="pt">The point in viewport coordinates.</param>

		/// <returns>Transformed point in data coordinates.</returns>

		public override Point ViewportToData(Point pt)

		{

			return new Point(pt.Y, pt.X);

		}

	}

}