root/trunk/gdal/swig/csharp/apps/WKT2WKB.cs

/******************************************************************************
 * $Id$
 *
 * Name:     WKT2WKB.cs
 * Project:  GDAL CSharp Interface
 * Purpose:  A sample app for demonstrating the usage of ExportToWkb.
 * Author:   Tamas Szekeres, szekerest@gmail.com
 *
 ******************************************************************************
 * Copyright (c) 2007, Tamas Szekeres
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

using System;

using OSGeo.OGR;


/**

 * <p>Title: GDAL C# wkt2wkb example.</p>
 * <p>Description: A sample app for demonstrating the usage of ExportToWkb.</p>
 * @author Tamas Szekeres (szekerest@gmail.com)
 * @version 1.0
 */



/// <summary>
/// A C# based sample for demonstrating the usage of ExportToWkb.
/// </summary> 

class WKT2WKB {
        
        public static void usage() 

        { 
                Console.WriteLine("usage example: wkt2wkb \"POINT(47.0 19.2)\"");
                System.Environment.Exit(-1);
        }
 
        public static void Main(string[] args) {

                if (args.Length != 1) usage();

                /* -------------------------------------------------------------------- */
                /*      Register format(s).                                             */
                /* -------------------------------------------------------------------- */
        Ogr.RegisterAll();

        Geometry geom = Geometry.CreateFromWkt(args[0]);
        
                int wkbSize = geom.WkbSize();
        if (wkbSize > 0) 
        {
            byte[] wkb = new byte[wkbSize];
            geom.ExportToWkb( wkb );
            Console.WriteLine( "wkt-->wkb: " + BitConverter.ToString(wkb) );
                        
                        // wkb --> wkt (reverse test)
                        Geometry geom2 = Geometry.CreateFromWkb(wkb);
                        string geom_wkt;
                        geom2.ExportToWkt(out geom_wkt);
                        Console.WriteLine( "wkb->wkt: " + geom_wkt );
        }

                // wkt -- gml transformation
       string gml = geom.ExportToGML();
       Console.WriteLine( "wkt->gml: " + gml );

       Geometry geom3 = Geometry.CreateFromGML(gml);
           string geom_wkt2;
           geom3.ExportToWkt(out geom_wkt2);
           Console.WriteLine( "gml->wkt: " + geom_wkt2 );
        }
}