MySQL 5.1 リファレンスマニュアル :: 16 Spatial Extensions :: 16.2 The OpenGIS Geometry Model :: 16.2.9 Class MultiPoint
« 16.2.8 Class GeometryCollection

16.2.10 Class MultiCurve »
Section Navigation      [Toggle]
  • 16.2 The OpenGIS Geometry Model
  • 16.2.1 The Geometry Class Hierarchy
  • 16.2.2 Class Geometry
  • 16.2.3 Class Point
  • 16.2.4 Class Curve
  • 16.2.5 Class LineString
  • 16.2.6 Class Surface
  • 16.2.7 Class Polygon
  • 16.2.8 Class GeometryCollection
  • 16.2.9 Class MultiPoint
  • 16.2.10 Class MultiCurve
  • 16.2.11 Class MultiLineString
  • 16.2.12 Class MultiSurface
  • 16.2.13 Class MultiPolygon

16.2.9. Class MultiPoint

A MultiPoint is a geometry collection composed of Point elements. The points are not connected or ordered in any way.

MultiPoint Examples

  • On a world map, a MultiPoint could represent a chain of small islands.

  • On a city map, a MultiPoint could represent the outlets for a ticket office.

MultiPoint Properties

  • A MultiPoint is a zero-dimensional geometry.

  • A MultiPoint is simple if no two of its Point values are equal (have identical coordinate values).

  • The boundary of a MultiPoint is the empty set.

Copyright © 1997, 2010, Oracle and/or its affiliates. All rights reserved. Legal Notices
Top / Previous / Next / Up / Table of Contents
© 2010, Oracle Corporation and/or its affiliates