ArcObjects Library Reference

Create BitwiseOp Right Shift Raster Snippet

Create a raster from a bitwize right shift on the binary value of two input GeoDataset's.

[C#]

/// <summary>
/// Create a raster from a bitwize right shift on the binary value of two input GeoDataset's.
/// </summary>
/// <param name="geoDataset_1">An IGeoDataset interface that has cell values to have the shift perfomed upon.</param>
/// <param name="geoDataset_2">An IGeoDataset interface that has cell values that define the number of positions to shift the bits.</param>
/// <returns>An IGeoDataset interface that is the result of a bitwise right shift from two input rasters.</returns>
/// <remarks>
/// Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
/// 
/// For information about the IBitwiseOp.RightShift Method see:
/// http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IBitwiseOp_RightShift.htm
/// 
/// 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 CreateBitwiseOpRightShiftRaster(ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_1, ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_2)
{

    if ((geoDataset_1 is ESRI.ArcGIS.Geodatabase.IRaster | geoDataset_1 is ESRI.ArcGIS.Geodatabase.IRasterDataset | geoDataset_1 is ESRI.ArcGIS.DataSourcesRaster.IRasterBand | geoDataset_1 is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor) & (geoDataset_2 is ESRI.ArcGIS.Geodatabase.IRaster | geoDataset_2 is ESRI.ArcGIS.Geodatabase.IRasterDataset | geoDataset_2 is ESRI.ArcGIS.DataSourcesRaster.IRasterBand | geoDataset_2 is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor))
    {

        // Create the MathOps object                            
        ESRI.ArcGIS.SpatialAnalyst.IBitwiseOp bitwiseOp=new ESRI.ArcGIS.SpatialAnalyst.RasterMathOpsClass();

        // Declare the output raster object                     
        ESRI.ArcGIS.Geodatabase.IGeoDataset geodataset_output=bitwiseOp.RightShift(geoDataset_1, geoDataset_2);

        return geodataset_output;

    }
    else
    {

        //Invalid type of GeoDataset for this process
        return null;

    }

}

[Visual Basic .NET]

''' <summary>
''' Create a raster from a bitwize right shift on the binary value of two input GeoDataset's.
''' </summary>
''' <param name="geoDataset_1">An IGeoDataset interface that has cell values to have the shift perfomed upon.</param>
''' <param name="geoDataset_2">An IGeoDataset interface that has cell values that define the number of positions to shift the bits.</param>
''' <returns>An IGeoDataset interface that is the result of a bitwise right shift from two input rasters.</returns>
''' <remarks>
''' Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
''' 
''' For information about the IBitwiseOp.RightShift Method see:
''' http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/IBitwiseOp_RightShift.htm
''' 
''' 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 CreateBitwiseOpRightShiftRaster(ByVal geoDataset_1 As ESRI.ArcGIS.Geodatabase.IGeoDataset, ByVal geoDataset_2 As ESRI.ArcGIS.Geodatabase.IGeoDataset) As ESRI.ArcGIS.Geodatabase.IGeoDataset

  If (TypeOf geoDataset_1 Is ESRI.ArcGIS.Geodatabase.IRaster _
  Or TypeOf geoDataset_1 Is ESRI.ArcGIS.Geodatabase.IRasterDataset _
  Or TypeOf geoDataset_1 Is ESRI.ArcGIS.DataSourcesRaster.IRasterBand _
  Or TypeOf geoDataset_1 Is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor) _
  And (TypeOf geoDataset_2 Is ESRI.ArcGIS.Geodatabase.IRaster _
  Or TypeOf geoDataset_2 Is ESRI.ArcGIS.Geodatabase.IRasterDataset _
  Or TypeOf geoDataset_2 Is ESRI.ArcGIS.DataSourcesRaster.IRasterBand _
  Or TypeOf geoDataset_2 Is ESRI.ArcGIS.GeoAnalyst.IRasterDescriptor) Then

    ' Create the MathOps object                         
    Dim bitwiseOp As ESRI.ArcGIS.SpatialAnalyst.IBitwiseOp=New ESRI.ArcGIS.SpatialAnalyst.RasterMathOpsClass

    ' Declare the output raster object                  
    Dim geodataset_output As ESRI.ArcGIS.Geodatabase.IGeoDataset=bitwiseOp.RightShift(geoDataset_1, geoDataset_2)

    Return geodataset_output

  Else

    'Invalid type of GeoDataset for this process
    Return Nothing

  End If

End Function

Additional Requirements

The code in this document requires the following References added to the Visual Studio project:
ESRI.ArcGIS.DataSourcesRaster
ESRI.ArcGIS.GeoAnalyst
ESRI.ArcGIS.Geodatabase
ESRI.ArcGIS.SpatialAnalyst
ESRI.ArcGIS.System