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IBufferConstructionProperties.UnionOverlappingBuffers Property (ArcObjects .NET 10.6 SDK)
ArcObjects Library Reference (Geometry)  

IBufferConstructionProperties.UnionOverlappingBuffers Property

Specifies whether or not overlaps are preserved in the set of output buffers (default is false).

[Visual Basic .NET]
Public Property UnionOverlappingBuffers As Boolean
[C#]
public bool UnionOverlappingBuffers {get; set;}
[C++]
HRESULT get_UnionOverlappingBuffers(
  VARIANT_BOOL pbUnionOverlapping
);
[C++]
HRESULT put_UnionOverlappingBuffers(
  Boolean* pbUnionOverlapping
);
[C++]

Parameters pbUnionOverlapping
pbUnionOverlapping is a parameter of type bool pbUnionOverlapping [out, retval]
pbUnionOverlapping is a parameter of type bool*

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Remarks

When buffering multiple input geometries, you can request that overlaps between individual buffers be unioned (or dissolved) together. The graphic below shows how this property and the ExplodeBuffers property work together.

How the union and explode options determine the output geometries. There are two input geometries, each with two parts.
a. union overlaps =false, explode=false. There is one output geometry for each input geometry.  Overlaps are preserved.
b. union overlaps =true,  explode=false.  One output geometry is produced for all input geometries and overlaps are dissolved.
c. union overlaps =true,  explode=true.   Overlaps are dissolved and one output geometry per separate area.
d. union overlaps =false, explode= true.   One output geometry is produced for each input part. Overlaps are preserved.

Explode and union options for buffering

See Also

IBufferConstructionProperties Interface