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ST_ClipByBox2D

ST_ClipByBox2D
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Name

ST_ClipByBox2D — Returns the portion of a geometry falling within a rectangle.

Synopsis

geometry ST_ClipByBox2D ( geometry geom , box2d box ) ;

Description

Clips a geometry by a 2D box in a fast but possibly dirty way. The output geometry is not guaranteed to be valid (self-intersections for a polygon may be introduced). Topologically invalid input geometries do not result in exceptions being thrown.

Performed by the GEOS module.

Availability: 2.2.0

Examples 

-- Rely on implicit cast from geometry to box2d for the second parameter
SELECT ST_ClipByBox2D(the_geom, ST_MakeEnvelope(0,0,10,10)) FROM mytab;

See Also

ST_Intersection , ST_MakeBox2D , ST_MakeEnvelope

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