/// <summary>
/// 栅格保存为数据集（并创建金字塔）
/// </summary>
/// <param name="raster">栅格</param>
/// <param name="outFile">输出文件</param>
public static void SaveRasterAsDataset(IRaster raster, string outFile)
{
//文件已存在，则返回
if (File.Exists(outFile) || raster == null)
{
return;
}
IRasterBandCollection pRasBandCol = raster as IRasterBandCollection;
if (pRasBandCol == null)
{
return;
}
string fileName = Path.GetFileName(outFile);
IWorkspace workspace = RasterDataInfoClass.GetRasterWorkspace(outFile);
//保存波段集合为数据集
IDataset dataset = pRasBandCol.SaveAs(fileName, workspace, "IMAGINE Image");
ITemporaryDataset pRsGeo = dataset as ITemporaryDataset;
if (pRsGeo != null && pRsGeo.IsTemporary())
{
pRsGeo.MakePermanent();
}
RasterDataInfoClass.CreatePyramid(outFile); //创建金字塔
}
/// <summary>
/// 复制获取临时栅格数据集
/// </summary>
/// <param name="rasterLayerFile">栅格图层文件</param>
/// <returns></returns>
public static IRasterDataset CopyAsTempRasterDataset(string rasterLayerFile)
{
//复制原始栅格为临时栅格
string tempFile = TempFile.CreateNewTempFile();
CopyRasterLayer(rasterLayerFile, tempFile);
return(RasterDataInfoClass.GetRasterDataset(tempFile));
}
/// <summary>
/// 设置栅格分析环境的输出空间为临时文件夹
/// </summary>
/// <param name="rasterAnalysisEnvironment">栅格分析环境</param>
public static void SetRasterAnalysisOutWorkspace(IRasterAnalysisEnvironment rasterAnalysisEnvironment)
{
if (rasterAnalysisEnvironment == null)
{
return;
}
//获取临时目录
string finalTemPath = TempFile.CreateNewTempDirectory();
IWorkspace workspace = RasterDataInfoClass.GetRasterWorkspace(finalTemPath);
//设置输出工作空间
rasterAnalysisEnvironment.OutWorkspace = workspace;
}
/// <summary>
/// 复制栅格图层
/// </summary>
/// <param name="inFile">输入路径</param>
/// <param name="outFile">输出路径</param>
public static ILayer CopyRasterLayer(string inFile, string outFile)
{
IRasterDataset rasterDataset = RasterDataInfoClass.GetRasterDataset(inFile);
return(DatasetHelper.CopyDatasetAsRasterLayer(rasterDataset as IDataset, outFile));
}
/// <summary>
/// 建立默认属性表
/// </summary>
/// <param name="rasterLayer"></param>
private static void BuildRasterAttributeTable(IRasterLayer rasterLayer)
{
IRasterDataset rasterDataset = RasterDataInfoClass.GetRasterDataset(rasterLayer.FilePath);
BuildRasterAttributeTable(rasterDataset);
}