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/******************************************************************************
* $Id: VSIMem.cs 25805 2013-03-26 10:46:39Z tamas $
*
* Name: VSIMem.cs
* Project: GDAL CSharp Interface
* Purpose: A sample app for demonstrating the in-memory virtual file support.
* Author: Tamas Szekeres, szekerest@gmail.com
*
******************************************************************************
* Copyright (c) 2013, 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 System.IO;
using System.Runtime.InteropServices;
using OSGeo.GDAL;
/**
* <p>Title: GDAL C# VSIMem example.</p>
* <p>Description: A sample app for demonstrating the in-memory virtual file support.</p>
* @author Tamas Szekeres (szekerest@gmail.com)
* @version 1.0
*/
/// <summary>
/// A C# based sample for demonstrating the in-memory virtual file support.
/// </summary>
class VSIMem {
public static void usage()
{
Console.WriteLine("usage example: vsimem [image file]");
System.Environment.Exit(-1);
}
public static void Main(string[] args) {
if (args.Length != 1) usage();
byte[] imageBuffer;
using (FileStream fs = new FileStream(args[0], FileMode.Open, FileAccess.Read))
{
using (BinaryReader br = new BinaryReader(fs))
{
long numBytes = new FileInfo(args[0]).Length;
imageBuffer = br.ReadBytes((int)numBytes);
br.Close();
fs.Close();
}
}
Gdal.AllRegister();
string memFilename = "/vsimem/inmemfile";
try
{
Gdal.FileFromMemBuffer(memFilename, imageBuffer);
Dataset ds = Gdal.Open(memFilename, Access.GA_ReadOnly);
Console.WriteLine("Raster dataset parameters:");
Console.WriteLine(" RasterCount: " + ds.RasterCount);
Console.WriteLine(" RasterSize (" + ds.RasterXSize + "," + ds.RasterYSize + ")");
Driver drv = Gdal.GetDriverByName("GTiff");
if (drv == null)
{
Console.WriteLine("Can't get driver.");
System.Environment.Exit(-1);
}
drv.CreateCopy("sample.tif", ds, 0, null, null, null);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
Gdal.Unlink(memFilename);
}
}
}
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