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ST_MakeEnvelope

ST_MakeEnvelope
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Name

ST_MakeEnvelope — Creates a rectangular Polygon from minimum and maximum coordinates.

Synopsis

geometry ST_MakeEnvelope ( float xmin , float ymin , float xmax , float ymax , integer srid=unknown ) ;

Description

Creates a rectangular Polygon from the minimum and maximum values for X and Y. Input values must be in the spatial reference system specified by the SRID. If no SRID is specified the unknown spatial reference system (SRID 0) is used.

Availability: 1.5

Enhanced: 2.0: Ability to specify an envelope without specifying an SRID was introduced.

Example: Building a bounding box polygon 

SELECT ST_AsText( ST_MakeEnvelope(10, 10, 11, 11, 4326) );

st_asewkt
-----------
POLYGON((10 10, 10 11, 11 11, 11 10, 10 10))

See Also

ST_MakePoint , ST_MakeLine , ST_MakePolygon , ST_TileEnvelope

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