一、GDAL C# 部分资源及参考

1.GDAL/OGR In CSharp官网主页 

2.GDAL CSharp 编译后的dll 下载地址

3.一个不错的帮助文档gdal api document 

4.官网提供的csharp实例代码片段

5.GDAL Raster Formats

二、GDAL C# DLL 下载

1.编译后的DLL下载地址：http://www.gisinternals.com/sdk/，在“GDAL and MapServer lasted release version”中下载最新版本。

2.点击后进入下载页面：

http://www.gisinternals.com/sdk/PackageList.aspx?file=release-1400-gdal-1-10-1-mapserver-6-4-1.zip

3.编译后的DLL除了gdal110.dll及其依赖项位于bin目录下，其余的均在压缩包中的【bin\gdal\csharp\...】目录下：

4.开发时把以“_csharp.dll”结尾的dll库添加到项目引用中，其余的拷贝到debug目录下。

三、常见异常解决

原因分析：gdal初始化时，因其依赖dll项不全导致注册失败抛出异常，可采用Dependency Walker工具查看相关依赖项。简单的把九个DLL和找到的所有依赖项拷贝到debug目录下，通常也是不能解决问题的。

解决方法：采用SharpMap的GDAL初始化方法解决，需要两个数据：

1.      GdalConfiguration.cs

2.      gdal_data_config.rar

注：以上两文件下载地址：gdal_csharp开发环境配置文件

第一步：将GdalConfiguration.cs添加到项目中，然后解压gdal_data_config.rar到debug目录下，文件夹名称为gdal。

第二步：在使用Gdal.AllRegister()初始化前，调用以下两句代码进行相关初始化数据的配置即可。

SharpMap.GdalConfiguration.ConfigureGdal();

SharpMap.GdalConfiguration.ConfigureOgr();

/******************************************************************************
 *
 * Name:     GdalConfiguration.cs.pp
 * Project:  GDAL CSharp Interface
 * Purpose:  A static configuration utility class to enable GDAL/OGR.
 * Author:   Felix Obermaier
 *
 *****************************************************************************/

using System;
using System.IO;
using System.Reflection;
using Gdal = OSGeo.GDAL.Gdal;
using Ogr = OSGeo.OGR.Ogr;

namespace SharpMap
{
    public static partial class GdalConfiguration
    {
        private static bool _configuredOgr;
        private static bool _configuredGdal;

        /// <summary>
        /// Function to determine which platform we‘re on
        /// </summary>
        private static string GetPlatform()
        {
            return IntPtr.Size == 4 ? "x86" : "x64";
        }

        /// <summary>
        /// Construction of Gdal/Ogr
        /// </summary>
        static GdalConfiguration()
        {
            var executingAssemblyFile = new Uri(Assembly.GetExecutingAssembly().GetName().CodeBase).LocalPath;
            var executingDirectory = Path.GetDirectoryName(executingAssemblyFile);

            if (string.IsNullOrEmpty(executingDirectory))
                throw new InvalidOperationException("cannot get executing directory");


            var gdalPath = Path.Combine(executingDirectory, "gdal");
            var nativePath = Path.Combine(gdalPath, GetPlatform());

            // Prepend native path to environment path, to ensure the
            // right libs are being used.
            var path = Environment.GetEnvironmentVariable("PATH");
            path = nativePath + ";" + Path.Combine(nativePath, "plugins") + ";" + path;
            Environment.SetEnvironmentVariable("PATH", path);

            // Set the additional GDAL environment variables.
            var gdalData = Path.Combine(gdalPath, "data");
            Environment.SetEnvironmentVariable("GDAL_DATA", gdalData);
            Gdal.SetConfigOption("GDAL_DATA", gdalData);

            var driverPath = Path.Combine(nativePath, "plugins");
            Environment.SetEnvironmentVariable("GDAL_DRIVER_PATH", driverPath);
            Gdal.SetConfigOption("GDAL_DRIVER_PATH", driverPath);

            Environment.SetEnvironmentVariable("GEOTIFF_CSV", gdalData);
            Gdal.SetConfigOption("GEOTIFF_CSV", gdalData);

            var projSharePath = Path.Combine(gdalPath, "share");
            Environment.SetEnvironmentVariable("PROJ_LIB", projSharePath);
            Gdal.SetConfigOption("PROJ_LIB", projSharePath);
        }

        /// <summary>
        /// Method to ensure the static constructor is being called.
        /// </summary>
        /// <remarks>Be sure to call this function before using Gdal/Ogr/Osr</remarks>
        public static void ConfigureOgr()
        {
            if (_configuredOgr) return;

            // Register drivers
            Ogr.RegisterAll();
            _configuredOgr = true;
        }

        /// <summary>
        /// Method to ensure the static constructor is being called.
        /// </summary>
        /// <remarks>Be sure to call this function before using Gdal/Ogr/Osr</remarks>
        public static void ConfigureGdal()
        {
            if (_configuredGdal) return;

            // Register drivers
            Gdal.AllRegister();
            _configuredGdal = true;
        }
    }
}

GDAL C# 开发环境配置,布布扣,bubuko.com

GDAL C# 开发环境配置

原文：http://blog.csdn.net/mygisforum/article/details/22478491