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GeometryCollection
A GeometryCollection
is a geometry that is a collection of one or more
geometries of any class.
All the elements in a GeometryCollection
must be in
the same Spatial Reference System (that is, in the same coordinate system).
There are no other constraints on the elements of a GeometryCollection
,
although the
subclasses of GeometryCollection
described in the following sections
may restrict membership. Retrictions may be based on:
MultiPoint
may contain only Point
elements)