transformtype.cs

C# 的地图开发例子（sharp map)

// Copyright 2005, 2006 - Morten Nielsen (www.iter.dk)
//
// This file is part of SharpMap.
// SharpMap is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
// 
// SharpMap is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.

// You should have received a copy of the GNU Lesser General Public License
// along with SharpMap; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 

using System;
using System.Collections.Generic;
using System.Text;

namespace SharpMap.CoordinateSystems.Transformations
{
	/// <summary>
	/// Semantic type of transform used in coordinate transformation.
	/// </summary>
	public enum TransformType : int
	{
		/// <summary>
		/// Unknown or unspecified type of transform.
		/// </summary>
		Other = 0,
		/// <summary>
		/// Transform depends only on defined parameters. For example, a cartographic projection.
		/// </summary>
		Conversion = 1,
		/// <summary>
		/// Transform depends only on empirically derived parameters. For example a datum transformation.
		/// </summary>
		Transformation = 2,
		/// <summary>
		/// Transform depends on both defined and empirical parameters.
		/// </summary>
		ConversionAndTransformation = 3
	}
}