MySQL 5.1 リファレンスマニュアル :: 16 Spatial Extensions :: 16.5 Analyzing Spatial Information :: 16.5.3 Functions That Create New Geometries from Existing Ones :: 16.5.3.1 Geometry Functions That Produce New Geometries
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- 16.5.3 Functions That Create New Geometries from Existing Ones
- 16.5.3.1 Geometry Functions That Produce New Geometries
- 16.5.3.2 Spatial Operators
項16.5.2. 「Geometry Functions」, discusses
several functions that construct new geometries from existing
ones. See that section for descriptions of these functions:
Envelope(g)StartPoint(ls)EndPoint(ls)PointN(ls,N)ExteriorRing(poly)InteriorRingN(poly,N)GeometryN(gc,N)
