IHydrologyOp2.FlowDirection Method

Creates a raster of flow direction from each cell to it's steepest downslope neighbor.

[Visual Basic .NET]
Public Function FlowDirection ( _
    ByVal surfaceRaster As IGeoDataset, _
    ByVal createDrop As Boolean, _
    ByVal forceFlowAtEdge As Boolean _
) As IGeoDataset

[C#]
public IGeoDataset FlowDirection (
    IGeoDataset surfaceRaster,
    bool createDrop,
    bool forceFlowAtEdge
);

[C++]
HRESULT FlowDirection(
  IGeoDataset* surfaceRaster,
  VARIANT_BOOL createDrop,
  VARIANT_BOOL forceFlowAtEdge
);

[C++]
Parameters
surfaceRaster [in]

  surfaceRaster is a parameter of type IGeoDataset*
createDrop [in]

  createDrop is a parameter of type bool
forceFlowAtEdge [in]

  forceFlowAtEdge is a parameter of type bool

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