Spec-Zone .ru
спецификации, руководства, описания, API
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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
only Point
elements)
Dimension
Constraints on the degree of spatial overlap between elements