MySQL Manual
11 Spatial Extensions in MySQL
- 11.2 The OpenGIS Geometry Model
- 11.2.1 The Geometry Class Hierarchy
- 11.2.2 Class
Geometry - 11.2.4 Class
Point - 11.2.7 Class
Curve - 11.2.9 Class
LineString - 11.2.12 Class
Surface - 11.2.14 Class
Polygon - 11.2.17 Class
GeometryCollection - 11.2.18 Class
MultiPoint - 11.2.21 Class
MultiCurve - 11.2.23 Class
MultiLineString - 11.2.25 Class
MultiSurface - 11.2.27 Class
MultiPolygon
11.2.4 Class Point
A Point is a geometry that represents a single
location in coordinate space.
11.2.5 Point Examples
- Imagine a large-scale map of the world with many cities. A point could represent each city.
- On a city map, a Point could represent a bus stop.
11.2.6 Point Properties
- X-coordinate value.
- Y-coordinate value.
-
Pointis defined as a zero-dimensional geometry. -
The boundary of a
Pointis the empty set.
