ST_IsPolygonCW()

Datum ST_IsPolygonCW

(

PG_FUNCTION_ARGS

)

Definition at line 1276 of file lwgeom_functions_analytic.c.

{
        GSERIALIZED* geom;
        LWGEOM* input;
        bool is_clockwise;
 
        if (PG_ARGISNULL(0))
                PG_RETURN_NULL();
 
        geom = PG_GETARG_GSERIALIZED_P(0);
        input = lwgeom_from_gserialized(geom);
 
        is_clockwise = lwgeom_is_clockwise(input);
 
        lwgeom_free(input);
        PG_FREE_IF_COPY(geom, 0);
 
        PG_RETURN_BOOL(is_clockwise);
}

References is_clockwise(), lwgeom_free(), lwgeom_from_gserialized(), and lwgeom_is_clockwise().

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