IGeometryServer2.Union Method

Returns the topological union of the input geometries (uses ITopologicalOperator::ConstructUnion). The input geometries must have the same dimension (0d, 1d, 2d).

[Visual Basic .NET]
Public Function Union ( _
    ByVal pSR As ISpatialReference, _
    ByVal pInGA As IGeometryArray _
) As IGeometry

[C#]
public IGeometry Union (
    ISpatialReference pSR,
    IGeometryArray pInGA
);

[C++]
HRESULT Union(
  ISpatialReference* pSR,
  IGeometryArray* pInGA,
  IGeometry** ppUnionedGeometry
);

[C++]

Parameters
pSR 

  pSR is a parameter of type ISpatialReference
pInGA 

  pInGA is a parameter of type IGeometryArray
ppUnionedGeometry [out, retval]

  ppUnionedGeometry is a parameter of type IGeometry

Product Availability

Remarks

This operation constructs the set-theoretic union of the geometries in the input array. All inputs must be of the same type.

See Also