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Open Raster File As GeoDatset Snippet (ArcObjects .NET 10.4 SDK)

ArcObjects Library Reference

Open Raster File As GeoDatset Snippet

[C#]

/// <summary>
/// Open a Raster file on disk by it's name as a GeoDataset.
/// </summary>
/// <param name="path">A System.String that is the directory location of the raster file. Example: "C:\raster_data"</param>
/// <param name="name">A System.String that is the name of the raster file in the directory. Example: "landuse" or "watershed"</param>
/// <returns>An IGeoDataset interface.</returns>
/// <remarks>
/// IRasterWorkspace is used to access a raster stored in a file system in any supported raster format. 
/// RasterWorkspaceFactory must be used to create a raster workspace.
/// To access raster from geodatabase, use IRasterWorkspaceEx interface.
/// 
/// For more information on working with the ArcGIS Spatial Anaylst objects see:
/// http://edndoc.esri.com/arcobjects/9.2/CPP_VB6_VBA_VCPP_Doc/COM/VB6/working/work_rasters/sptl_analyst_objs.htm
/// </remarks>
public ESRI.ArcGIS.Geodatabase.IGeoDataset OpenRasterFileAsGeoDatset(System.String path, System.String name)
{

    try
    {

        ESRI.ArcGIS.Geodatabase.IWorkspaceFactory workspaceFactory=new ESRI.ArcGIS.DataSourcesRaster.RasterWorkspaceFactoryClass();
        ESRI.ArcGIS.DataSourcesRaster.IRasterWorkspace rasterWorkspace=(ESRI.ArcGIS.DataSourcesRaster.IRasterWorkspace)(workspaceFactory.OpenFromFile(path, 0));
        ESRI.ArcGIS.Geodatabase.IRasterDataset rasterDataset=rasterWorkspace.OpenRasterDataset(name);
        ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset=(ESRI.ArcGIS.Geodatabase.IGeoDataset)rasterDataset; // Explicit Cast

        return geoDataset;

    }
    catch (System.Exception ex)
    {

        //System.Diagnostics.Debug.WriteLine(ex.Message)
        return null;

    }

}

[Visual Basic .NET]

''' <summary>
''' Open a Raster file on disk by it's name as a GeoDataset.
''' </summary>
''' <param name="path">A System.String that is the directory location of the raster file. Example: "C:\raster_data"</param>
''' <param name="name">A System.String that is the name of the raster file in the directory. Example: "landuse" or "watershed"</param>
''' <returns>An IGeoDataset interface.</returns>
''' <remarks>
''' IRasterWorkspace is used to access a raster stored in a file system in any supported raster format. 
''' RasterWorkspaceFactory must be used to create a raster workspace.
''' To access raster from geodatabase, use IRasterWorkspaceEx interface.
''' 
''' For more information on working with the ArcGIS Spatial Anaylst objects see:
''' http://edndoc.esri.com/arcobjects/9.2/CPP_VB6_VBA_VCPP_Doc/COM/VB6/working/work_rasters/sptl_analyst_objs.htm
''' </remarks>
Public Function OpenRasterFileAsGeoDatset(ByVal path As System.String, ByVal name As System.String) As ESRI.ArcGIS.Geodatabase.IGeoDataset

  Try

    Dim workspaceFactory As ESRI.ArcGIS.Geodatabase.IWorkspaceFactory=New ESRI.ArcGIS.DataSourcesRaster.RasterWorkspaceFactoryClass()
    Dim rasterWorkspace As ESRI.ArcGIS.DataSourcesRaster.IRasterWorkspace=CType(workspaceFactory.OpenFromFile(path, 0), ESRI.ArcGIS.DataSourcesRaster.IRasterWorkspace)
    Dim rasterDataset As ESRI.ArcGIS.Geodatabase.IRasterDataset=rasterWorkspace.OpenRasterDataset(name)
    Dim geoDataset As ESRI.ArcGIS.Geodatabase.IGeoDataset=CType(rasterDataset, ESRI.ArcGIS.Geodatabase.IGeoDataset) ' Explicit Cast

    Return geoDataset

  Catch ex As System.Exception

    'System.Diagnostics.Debug.WriteLine(ex.Message)
    Return Nothing

  End Try

End Function