PostGIS  2.3.8dev-r@@SVN_REVISION@@

◆ LWGEOM_force_clockwise_poly()

Datum LWGEOM_force_clockwise_poly ( PG_FUNCTION_ARGS  )

Definition at line 1893 of file lwgeom_functions_basic.c.

References geometry_serialize(), lwgeom_force_clockwise(), lwgeom_free(), lwgeom_from_gserialized(), LWGEOM_noop(), and PG_FUNCTION_INFO_V1().

Referenced by LWGEOM_reverse().

1894 {
1895  GSERIALIZED *ingeom, *outgeom;
1896  LWGEOM *lwgeom;
1897 
1898  POSTGIS_DEBUG(2, "LWGEOM_force_clockwise_poly called");
1899 
1900  ingeom = PG_GETARG_GSERIALIZED_P_COPY(0);
1901 
1902  lwgeom = lwgeom_from_gserialized(ingeom);
1903  lwgeom_force_clockwise(lwgeom);
1904 
1905  outgeom = geometry_serialize(lwgeom);
1906 
1907  lwgeom_free(lwgeom);
1908  PG_FREE_IF_COPY(ingeom, 0);
1909  PG_RETURN_POINTER(outgeom);
1910 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1063
void lwgeom_force_clockwise(LWGEOM *lwgeom)
Ensure the outer ring is clockwise oriented and all inner rings are counter-clockwise.
Definition: lwgeom.c:36
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)
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