ILogicalOp.IsNull Method

On a cell by cell basis, returns 1 if the input value is NoData, and 0 if it is not.

[Visual Basic .NET]
Public Function IsNull ( _
    ByVal geoDataset As IGeoDataset _
) As IGeoDataset

[C#]
public IGeoDataset IsNull (
    IGeoDataset geoDataset
);

[C++]
HRESULT IsNull(
  IGeoDataset* geoDataset
);

[C++]
Parameters
geoDataset [in]

  geoDataset is a parameter of type IGeoDataset*

Product Availability

Remarks

• The method returns a reference to a Raster object. 
• Read the Working with ArcGIS Spatial Analyst objects technical document for general information on implementing Spatial Analyst operations

See Also