Class 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. Restrictions may be based on:
- Element type (for example, a
MultiPoint
may contain onlyPoint
elements) - Dimension
- Constraints on the degree of spatial overlap between elements