[转载]导入栅格数据到SDE数据库_玉立琪

http://blog.sina.com.cn/u/1956010985

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[转载]导入栅格数据到SDE数据库

(2015-02-03 09:51:14)

标签：

转载

分类： ArcGIS

原文地址：导入栅格数据到SDE数据库作者：蓝枫

        private void imortRasterData(string strRasterFileDir, string strRasterFileName, string strOutName, ref string failInfo, ref string errorDetail, ref string skipInfo)

        {
            try
            {
                //判断是否有重名现象
                IWorkspace2 pWS2 = pSdeWorkSpace as IWorkspace2;

                //如果名称已存在
                if (pWS2.get_NameExists(esriDatasetType.esriDTRasterDataset, strOutName))
                {
                    DialogResult result;
                    result = MessageBox.Show(this, "栅格文件名  " + strOutName + "  在数据库中已存在!" + "r是否覆盖?", "相同文件名", MessageBoxButtons.YesNo, MessageBoxIcon.Information, MessageBoxDefaultButton.Button1);
                    //覆盖原矢量要素
                    if (result == DialogResult.Yes)
                    {
                        IRasterWorkspaceEx pRWs = pSdeWorkSpace as IRasterWorkspaceEx;
                        IDataset pDataset = pRWs.OpenRasterDataset(strOutName) as IDataset;
                        pDataset.Delete();
                        pDataset = null;
                    }

                    else if (result == DialogResult.No)
                    {
                        //不覆盖,则退出for循环,忽略这个要素,转入下一个要素的导入
                        if (skipInfo == "")
                            skipInfo = strRasterFileDir + "" + strRasterFileName;
                        else
                            skipInfo += ";" + strRasterFileDir + "" + strRasterFileName;
                        return;
                    }
                }
                IWorkspaceFactory pRasterWsFac = new RasterWorkspaceFactoryClass();
                IWorkspace pWs = pRasterWsFac.OpenFromFile(strRasterFileDir, 0);
                IRasterDataset pRasterDs = null;
                IRasterWorkspace pRasterWs;
                if (!(pWs is IRasterWorkspace))
                {
                    if (failInfo == "")
                    {
                        failInfo = strRasterFileDir + "" + strRasterFileName;
                        errorDetail = "错误信息：" + strRasterFileDir + "不是栅格工作空间。";
                    }
                    else
                    {
                        failInfo += ";" + strRasterFileDir + "" + strRasterFileName;
                        errorDetail += ";" + "错误信息：" + strRasterFileDir + "不是栅格工作空间。";
                    }
                    return;
                }
                pRasterWs = pWs as IRasterWorkspace;
                pRasterDs = pRasterWs.OpenRasterDataset(strRasterFileName);
                ISaveAs2 saveAs2 = (ISaveAs2)pRasterDs;
                IRasterStorageDef rasterStorageDef = new RasterStorageDefClass();
                IRasterStorageDef2 rasterStorageDef2 = (IRasterStorageDef2)rasterStorageDef;
                rasterStorageDef2.CompressionType =
                    esriRasterCompressionType.esriRasterCompressionJPEG2000;

                rasterStorageDef2.CompressionQuality = 50;
                rasterStorageDef2.Tiled = true;
                rasterStorageDef2.TileHeight = 128;
                rasterStorageDef2.TileWidth = 128;

                saveAs2.SaveAsRasterDataset(strOutName, pSdeWorkSpace, "gdb", rasterStorageDef2);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                if (failInfo == "")
                {
                    failInfo = strRasterFileDir + "" + strRasterFileName;
                    errorDetail = "错误信息：" + ex.Message;
                }
                else
                {
                    failInfo += ";" + strRasterFileDir + "" + strRasterFileName;
                    errorDetail += ";" + "错误信息：" + ex.Message;
                }
                return;
            }
        }

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