(mysql.info.gz) OpenGIS geometry model
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(mysql.info.gz) GIS introduction
(mysql.info.gz) Spatial extensions in MySQL
(mysql.info.gz) Supported spatial data formats
18.2 The OpenGIS Geometry Model
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The set of geometry types proposed by OGC's *SQL with Geometry Types*
environment is based on the *OpenGIS Geometry Model*. In this model,
each geometric object has the following general properties:
* It is associated with a Spatial Reference System, which describes
the coordinate space in which the object is defined.
* It belongs to some geometry class.
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* GIS geometry class hierarchy The Geometry Class Hierarchy
* GIS class geometry Class `Geometry'
* GIS class point Class `Point'
* GIS class curve Class `Curve'
* GIS class linestring Class `LineString'
* GIS class surface Class `Surface'
* GIS class polygon Class `Polygon'
* GIS class geometrycollection Class `GeometryCollection'
* GIS class multipoint Class `MultiPoint'
* GIS class multicurve Class `MultiCurve'
* GIS class multilinestring Class `MultiLineString'
* GIS class multisurface Class `MultiSurface'
* GIS class multipolygon Class `MultiPolygon'
Info Catalog
(mysql.info.gz) GIS introduction
(mysql.info.gz) Spatial extensions in MySQL
(mysql.info.gz) Supported spatial data formats
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