ST_IsPolygonCCW()

Datum ST_IsPolygonCCW

(

PG_FUNCTION_ARGS

)

Definition at line 887 of file lwgeom_functions_analytic.c.

{
        GSERIALIZED* geom;
 
        if (PG_ARGISNULL(0))
                PG_RETURN_NULL();
 
        geom = PG_GETARG_GSERIALIZED_P(0);
        geom = PG_GETARG_GSERIALIZED_P(0);
        PG_RETURN_BOOL(lwgeom_has_orientation(lwgeom_from_gserialized(geom), LW_COUNTERCLOCKWISE));
}

References LW_COUNTERCLOCKWISE, lwgeom_from_gserialized(), and lwgeom_has_orientation().

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