MySQL 5.1 リファレンスマニュアル :: 16 Spatial Extensions :: 16.2 The OpenGIS Geometry Model :: 16.2.5 Class LineString
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- 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
A LineString is a Curve
with linear interpolation between points.
LineString
Examples
On a world map,
LineStringobjects could represent rivers.In a city map,
LineStringobjects could represent streets.
LineString
Properties
A
LineStringhas coordinates of segments, defined by each consecutive pair of points.A
LineStringis aLineif it consists of exactly two points.A
LineStringis aLinearRingif it is both closed and simple.
