//#######################以下函数可配合使用########################
//**************************Load Raster Begin****************************
//函数编号：RasterLoad-01
//函数名：DirToMosaic
//函数功能：把文件夹中的Raster文件合并到新的Raster文件中去
//参数：sDir：栅格文件夹
// pDataset：最后合并的RasterDataset
//备注：pDataset可以使Geodataset中的参数，如果不存在利用函数创建
public void DirToMosaic(string sDir, IRasterDataset pDataset)
{
//load all raster datasets in the input directory to the raster dataset
//the geodatabase raster dataset has to exist,
//if not create it first with proper storage parameters.
IWorkspaceFactory pWsFact = new RasterWorkspaceFactoryClass();;
IWorkspace pFileWs = pWsFact.OpenFromFile(sDir, 0);
IRasterDatasetEdit pSDEDs = pDataset as IRasterDatasetEdit;
IRasterDataset2 pRasterDs;
// load raster datasets from the dir
IEnumDataset pEunmDatasets = pFileWs.get_Datasets(esriDatasetType.esriDTRasterDataset);
pEunmDatasets.Reset();
pRasterDs = pEunmDatasets.Next() as IRasterDataset2;
while (!(pRasterDs == null))
{
//!!!pRasterDs.CompleteName;
pSDEDs.Mosaic(pRasterDs.CreateFullRaster(), 0.5);
//!!!注意IRasterDataset2::CreateFullRaster()方法可以简单实现从RasterDataset到Raster的转换
pRasterDs = pEunmDatasets.Next() as IRasterDataset2;
}
//cleanup
pEunmDatasets = null;
pRasterDs = null;
pWsFact = null;
pSDEDs = null;
pFileWs = null;
}
//函数编号：Raster-07
//函数名:MosaicRasterToGDBRaster
//函数功能:Raster文件Mosaic到SDE Raster文件中
//参数:
public void MosaicRasterToGDBRaster(IRasterDataset pRasterFile, IRasterDatasetEdit pGDBRasterDs)
{
try
{
IRaster pRaster;
IRasterDataset2 pRasterDs = pRasterFile as IRasterDataset2;
//IDataset pDs;
pRaster = pRasterDs.CreateFullRaster(); //CreateFullRaster()方法只有IRasterDataset2有
pGDBRasterDs.Mosaic(pRaster, 0.5); //no resample
pRasterDs = null;
pRaster = null;
//pDs = null;
}
catch (Exception e)
{
if (e is StackOverflowException ||
e is OutOfMemoryException)
{
throw;
}
}
}
private void MosaicRasterToGDBRaster(IRasterDataset pRasterFile, IRasterDatasetEdit pGDBRasterDs)
{
try
{
IRaster pRaster;
IRasterDataset2 pRasterDs = pRasterFile as IRasterDataset2;
//IDataset pDs;
pRaster = pRasterDs.CreateFullRaster();//CreateFullRaster()方法只有IRasterDataset2有
pGDBRasterDs.Mosaic(pRaster, 0.5); //no resample
pRasterDs = null;
pRaster = null;
//pDs = null;
}
catch (Exception e)
{
if (e is StackOverflowException ||
e is OutOfMemoryException)
throw;
}
}