ST_ForcePolygonCCW

For (Multi)Polygon geometries, this function sets the exterior ring orientation to counter-clockwise and interior rings to clockwise orientation. Non-polygonal geometries are returned unchanged.

Signatures

ST_ForcePolygonCCW(geom: Geometry)

Parameters

geom

Geometry

required

The input geometry.

Return type

The resulting geometry.

Example

SELECT ST_AsText(ST_ForcePolygonCCW(ST_GeomFromText('POLYGON ((20 35, 45 20, 30 5, 10 10, 10 30, 20 35), (30 20, 20 25, 20 15, 30 20))')))

POLYGON ((20 35, 10 30, 10 10, 30 5, 45 20, 20 35), (30 20, 20 15, 20 25, 30 20))

ST_ForceCollection

ST_ForcePolygonCW

⌘I

Wherobots Cloud REST API

WherobotsDB

Vector tiles (PMTiles)

Havasu (Iceberg) table management

GeoStats and Map Matching

Rasterflow

ST_ForcePolygonCCW

Signatures

Parameters

Return type

Example

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​Example

Signatures

Parameters

Return type

Example