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
11.2.9 Class LineString
A LineString is a Curve with linear interpolation between points.
11.2.10 LineString Examples
-
On a world map,
LineStringobjects could represent rivers. -
In a city map,
LineStringobjects could represent streets.
11.2.11 LineString Properties
-
Coordinates of
LineStringsegments, defined by each consecutive pair of points. -
A
LineStringis aLineif it consists of exactly two points. -
A
LineStringis aLinearRingif it's both closed and simple.
