GeographicTransform.cs
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上传日期:2013-11-09
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- // 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.Collections.ObjectModel;
- using System.Text;
- namespace SharpMap.CoordinateSystems
- {
- /// <summary>
- /// The GeographicTransform class is implemented on geographic transformation objects and
- /// implements datum transformations between geographic coordinate systems.
- /// </summary>
- public class GeographicTransform : Info, IGeographicTransform
- {
- internal GeographicTransform(
- string name, string authority, long code, string alias, string remarks, string abbreviation,
- IGeographicCoordinateSystem sourceGCS, IGeographicCoordinateSystem targetGCS)
- : base(name, authority, code, alias, abbreviation, remarks)
- {
- _SourceGCS = sourceGCS;
- _TargetGCS = targetGCS;
- }
- #region IGeographicTransform Members
- private IGeographicCoordinateSystem _SourceGCS;
- /// <summary>
- /// Gets or sets the source geographic coordinate system for the transformation.
- /// </summary>
- public IGeographicCoordinateSystem SourceGCS
- {
- get { return _SourceGCS; }
- set { _SourceGCS = value; }
- }
- private IGeographicCoordinateSystem _TargetGCS;
- /// <summary>
- /// Gets or sets the target geographic coordinate system for the transformation.
- /// </summary>
- public IGeographicCoordinateSystem TargetGCS
- {
- get { return _TargetGCS; }
- set { _TargetGCS = value; }
- }
- /// <summary>
- /// Returns an accessor interface to the parameters for this geographic transformation.
- /// </summary>
- public IParameterInfo ParameterInfo
- {
- get { throw new NotImplementedException(); }
- }
- /// <summary>
- /// Transforms an array of points from the source geographic coordinate
- /// system to the target geographic coordinate system.
- /// </summary>
- /// <param name="points">On input points in the source geographic coordinate system</param>
- /// <returns>Output points in the target geographic coordinate system</returns>
- public Collection<SharpMap.Geometries.Point> Forward(Collection<SharpMap.Geometries.Point> points)
- {
- throw new NotImplementedException();
- /*
- List<SharpMap.Geometries.Point> trans = new List<SharpMap.Geometries.Point>(points.Count);
- foreach (SharpMap.Geometries.Point p in points)
- {
- }
- return trans;
- */
- }
- /// <summary>
- /// Transforms an array of points from the target geographic coordinate
- /// system to the source geographic coordinate system.
- /// </summary>
- /// <param name="points">Input points in the target geographic coordinate system,</param>
- /// <returns>Output points in the source geographic coordinate system</returns>
- public Collection<SharpMap.Geometries.Point> Inverse(Collection<SharpMap.Geometries.Point> points)
- {
- throw new NotImplementedException();
- }
- /// <summary>
- /// Returns the Well-known text for this object
- /// as defined in the simple features specification.
- /// </summary>
- public override string WKT
- {
- get
- {
- throw new NotImplementedException();
- }
- }
- /// <summary>
- /// Gets an XML representation of this object [NOT IMPLEMENTED].
- /// </summary>
- public override string XML
- {
- get
- {
- throw new NotImplementedException();
- }
- }
- /// <summary>
- /// Checks whether the values of this instance is equal to the values of another instance.
- /// Only parameters used for coordinate system are used for comparison.
- /// Name, abbreviation, authority, alias and remarks are ignored in the comparison.
- /// </summary>
- /// <param name="obj"></param>
- /// <returns>True if equal</returns>
- public override bool EqualParams(object obj)
- {
- if (!(obj is GeographicTransform))
- return false;
- GeographicTransform gt = obj as GeographicTransform;
- return gt.SourceGCS.EqualParams(this.SourceGCS) && gt.TargetGCS.EqualParams(this.TargetGCS);
- }
- #endregion
- }
- }