ArcObjects Library Reference

Create LogicalOp Boolean OR Raster Snippet

Create a boolean 'OR' raster from two input GeoDataset's.

[C#]

/// <summary>
/// Create a logical boolean 'OR' raster from two input GeoDataset's.
/// </summary>
/// <param name="geoDataset_1">An IGeoDataset interface that has cell values that need to have a boolean 'OR' computed.</param>
/// <param name="geoDataset_2">An IGeoDataset interface that has cell values that need to have a boolean 'OR' computed.</param>
/// <returns>An IGeoDataset interface that is the result of a boolean 'OR' from two input rasters.</returns>
/// <remarks>
/// Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
/// 
/// For information about the ILogicalOp.BooleanOr  Method see:
/// http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/ILogicalOp_BooleanOr.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 CreateLogicalOpBooleanORRaster(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.ILogicalOp logicalOp = new ESRI.ArcGIS.SpatialAnalyst.RasterMathOpsClass();

        // Declare the output raster object
        ESRI.ArcGIS.Geodatabase.IGeoDataset geoDataset_output = logicalOp.BooleanOr(geoDataset_1, geoDataset_2);

        return geoDataset_output;

    }
    else
    {

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

    }

}

[Visual Basic .NET]

''' <summary>
''' Create a logical boolean 'OR' raster from two input GeoDataset's.
''' </summary>
''' <param name="geoDataset_1">An IGeoDataset interface that has cell values that need to have a boolean 'OR' computed.</param>
''' <param name="geoDataset_2">An IGeoDataset interface that has cell values that need to have a boolean 'OR' computed.</param>
''' <returns>An IGeoDataset interface that is the result of a boolean 'OR' from two input rasters.</returns>
''' <remarks>
''' Note: the input geoDataset's must be of Type IRaster, IRasterDataset, IRasterBand, or IRasterDescriptor.
''' 
''' For information about the ILogicalOp.BooleanOr  Method see:
''' http://edndoc.esri.com/arcobjects/9.2/ComponentHelp/esriSpatialAnalyst/ILogicalOp_BooleanOr.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 CreateLogicalOpBooleanORRaster(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 logicalOp As ESRI.ArcGIS.SpatialAnalyst.ILogicalOp = New ESRI.ArcGIS.SpatialAnalyst.RasterMathOpsClass

    ' Declare the output raster object
    Dim geoDataset_output As ESRI.ArcGIS.Geodatabase.IGeoDataset = logicalOp.BooleanOr(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