public static List <IRasterLayer> pRstLayers  = new List <IRasterLayer>();  //存储栅格数据的图层
        #endregion


        #region 地理数据库和连接
        /// <summary>
        /// 创建企业地理数据库
        /// </summary>
        /// <param name="DB_platform">数据库类型</param>
        /// <param name="instance">地址</param>
        /// <param name="DB_Name">数据库名</param>
        /// <param name="DB_admin">数据库用户名</param>
        /// <param name="DB_pwd">数据库密码</param>
        /// <param name="GDB_admin">地理数据库用户名</param>
        /// <param name="GDB_pwd">地理数据库密码</param>
        /// <param name="auth_path">许可路径</param>
        ///
        public void CreateEnterpriseDB(string DB_platform, string instance, string DB_name,
                                       string DB_admin, string DB_pwd, string GDB_admin, string GDB_pwd, string auth_path)
        {
            Geoprocessor gp = new Geoprocessor();

            gp.OverwriteOutput = true;
            CreateEnterpriseGeodatabase ceGDB = new CreateEnterpriseGeodatabase();

            ceGDB.database_platform       = DB_platform;
            ceGDB.instance_name           = instance;
            ceGDB.database_name           = DB_name;
            ceGDB.database_admin          = DB_admin;
            ceGDB.database_admin_password = DB_pwd;
            ceGDB.gdb_admin_name          = GDB_admin;
            ceGDB.gdb_admin_password      = GDB_pwd;
            ceGDB.authorization_file      = auth_path;

            gp.Execute(ceGDB, null);
        }
        public string createSDE(string dbtype, string instance, string db_admin, string db_admin_password, string sde_admin, string sde_admin_password, string tablespacename, string authorfilepath)
        {
            CreateEnterpriseGeodatabase createSDE = new CreateEnterpriseGeodatabase();

            createSDE.database_platform       = dbtype;
            createSDE.instance_name           = instance;
            createSDE.database_admin          = db_admin;
            createSDE.database_admin_password = db_admin_password;
            createSDE.gdb_admin_name          = sde_admin;
            createSDE.gdb_admin_password      = sde_admin_password;
            createSDE.tablespace_name         = tablespacename;
            createSDE.authorization_file      = authorfilepath;

            Geoprocessor gp = new Geoprocessor();
            //设置参数

            //执行Intersect工具
            string ans = RunTool(gp, createSDE, null);

            return(ans);
        }