geoalchemy.postgis

class geoalchemy.postgis.PGComparator(prop, mapper, adapter=None)

Comparator class used for PostGIS

class geoalchemy.postgis.PGPersistentSpatialElement(desc)

Represents a Geometry value as loaded from the database.

class geoalchemy.postgis.PGSpatialDialect

Implementation of SpatialDialect for PostGIS.

class geoalchemy.postgis.pg_functions

Functions only supported by PostGIS

class expand(*arguments, **kwargs)

Expand(g)

class pg_functions.geojson(*arguments, **kwargs)

AsGeoJSON(g): available since PostGIS version 1.3.4

class pg_functions.gml(*arguments, **kwargs)

AsGML(g)

class pg_functions.kml(*arguments, **kwargs)

AsKML(g)

class pg_functions.svg(*arguments, **kwargs)

AsSVG(g)