ST_Simplify

ST_Simplify
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Name

ST_Simplify — Returns a "simplified" geometry version of the given TopoGeometry using the Douglas-Peucker algorithm.

geometry ST_Simplify ( TopoGeometry tg , float8 tolerance ) ;

Returns a "simplified" geometry version of the given TopoGeometry using the Douglas-Peucker algorithm on each component edge.


The returned geometry may be non-simple or non-valid. Splitting component edges may help retaining simplicity/validity.

The returned geometry may be non-simple or non-valid.

Splitting component edges may help retaining simplicity/validity.

Performed by the GEOS module.

Availability: 2.1.0

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