使用ArcGIS Engine进行投影转换的步骤解析

        /// <summary>
        /// 投影转换
        /// </summary>
        /// <param name="strInputFeatureClass"></param>
        /// <param name="strOutputFeatureClass"></param>
        /// <param name="strOutputCoordinateSystem"></param>
        private void TransformProject2(string strInputFeatureClass, string strInputCoordinateSystem, string strOutputFeatureClass, string strOutputCoordinateSystem)
        {
            // Intialize the Geoprocessor
            Geoprocessor geoprocessor = new Geoprocessor();

            // Allow for the overwriting of file geodatabases, if they previously exist.
            geoprocessor.OverwriteOutput = true;
             //Set the workspace to a folder containing personal geodatabases.

            try
            {
                //定义投影
                ESRI.ArcGIS.DataManagementTools.DefineProjection definePrj = new DefineProjection();
                definePrj.in_dataset = strInputFeatureClass;
                definePrj.coor_system = strInputCoordinateSystem;
                geoprocessor.Execute(definePrj, null);
                object btemp = new object();
                string strMessage = geoprocessor.GetMessages(ref btemp);

            }
            catch (Exception err)
            {
                Console.WriteLine(err.Message);