ST_ForcePolygonCCW — Orients all exterior rings counter-clockwise and all interior rings clockwise.
geometry ST_ForcePolygonCCW (
geometry geom )
;
Forces (Multi)Polygons to use a counter-clockwise orientation for their exterior ring, and a clockwise orientation for their interior rings. Non-polygonal geometries are returned unchanged.
Disponibilità: 2.4.0
Questa funzione supporta il 3d e non distrugge gli z-index.
Questa funzione supporta le coordinate M.