(mysql.info.gz) GIS class geometrycollection
Info Catalog
(mysql.info.gz) GIS class polygon
(mysql.info.gz) OpenGIS geometry model
(mysql.info.gz) GIS class multipoint
18.2.8 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 only `Point'
elements)
* Dimension
* Constraints on the degree of spatial overlap between elements
Info Catalog
(mysql.info.gz) GIS class polygon
(mysql.info.gz) OpenGIS geometry model
(mysql.info.gz) GIS class multipoint
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