MultiPoint is a geometry collection
Point elements. The points are
not connected or ordered in any way.
On a world map, a
MultiPointcould represent a chain of small islands.
On a city map, a
MultiPointcould represent the outlets for a ticket office.
MultiPointis a zero-dimensional geometry.
MultiPointis simple if no two of its
Pointvalues are equal (have identical coordinate values).
The boundary of a
MultiPointis the empty set.