ArcObjects Library Reference (SpatialAnalyst)

IHydrologyOp2.Basin Method

Creates a raster delineating all drainage basins.

[Visual Basic .NET]
Public Function Basin ( _
    ByVal directionRaster As IGeoDataset _
) As IGeoDataset

[C#]
public IGeoDataset Basin (
    IGeoDataset directionRaster
);

[C++]
HRESULT Basin(
  IGeoDataset* directionRaster
);

[C++]

Parameters
directionRaster [in]

  directionRaster is a parameter of type IGeoDataset*

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Spatial Analyst Extension.

directionRaster

an input Raster, RasterDataset, RasterBand, or RasterDescriptor showing the direction of flow out of each cell

This Raster can be created using the IHydrologyOp::FlowDirection method.

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.