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Returns true if all polygonal components in the input geometry have their exterior rings oriented clockwise and interior rings oriented counter-clockwise. ST_IsPolygonCW

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Signatures

ST_IsPolygonCW(geom: Geometry)

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Parameters

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geom
Geometry
required
The input geometry.

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Return type

Returns true or false.

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Example

SELECT ST_IsPolygonCW(ST_GeomFromWKT('POLYGON ((20 35, 45 20, 30 5, 10 10, 10 30, 20 35), (30 20, 20 25, 20 15, 30 20))'))

true