Name
ST_Simplify — Returns a "simplified" geometry version of the given TopoGeometry using the Douglas-Peucker algorithm.
Synopsis
geometry
ST_Simplify
(
TopoGeometry
tg
, float8
tolerance
)
;
Description
Returns a "simplified" geometry version of the given TopoGeometry using the Douglas-Peucker algorithm on each component edge.
![[Note]](./images/note.png)
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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
See Also
Geometry ST_Simplify , ST_IsSimple , ST_IsValid , ST_ModEdgeSplit