MySQL 5.1 リファレンスマニュアル :: 16 Spatial Extensions :: 16.2 The OpenGIS Geometry Model :: 16.2.6 Class Surface
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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 Surface is a two-dimensional geometry. It
is a non-instantiable class. Its only instantiable subclass is
Polygon.
Surface
Properties
A
Surfaceis defined as a two-dimensional geometry.The OpenGIS specification defines a simple
Surfaceas a geometry that consists of a single 「patch」 that is associated with a single exterior boundary and zero or more interior boundaries.The boundary of a simple
Surfaceis the set of closed curves corresponding to its exterior and interior boundaries.
