Public Sub Union( _
   ByVal geometry As Geometry _
) 

Visual Basic (Usage)	Copy Code
Dim instance As Envelope Dim geometry As Geometry   instance.Union(geometry)

public void Union( 
   Geometry geometry
)

Parameters

geometry

ADF Geometry object: Point, Multipoint, Envelope, Polyline or Polygon.

Be aware that this method modifies the Envelope, rather than returning a new Envelope. If you do not want to modify the Envelope, create a new one by using .Clone with the existing Envelope.

This method enlarges the current envelope so that its rectangular extent includes that of the input geometry. It examines the coordinates of the input geometry to determine the new extent.

Reference