LWGEOM_force_4d()

Datum LWGEOM_force_4d

(

PG_FUNCTION_ARGS

)

Definition at line 433 of file lwgeom_functions_basic.c.

{
        GSERIALIZED *pg_geom_in = PG_GETARG_GSERIALIZED_P(0);
        GSERIALIZED *pg_geom_out;
        LWGEOM *lwg_in, *lwg_out;
        double z = PG_NARGS() < 3 ? 0 : PG_GETARG_FLOAT8(1);
        double m = PG_NARGS() < 3 ? 0 : PG_GETARG_FLOAT8(2);
 
        /* already 4d */
        if (gserialized_ndims(pg_geom_in) == 4)
                PG_RETURN_POINTER(pg_geom_in);
 
        lwg_in = lwgeom_from_gserialized(pg_geom_in);
        lwg_out = lwgeom_force_4d(lwg_in, z, m);
        pg_geom_out = geometry_serialize(lwg_out);
        lwgeom_free(lwg_out);
        lwgeom_free(lwg_in);
 
        PG_FREE_IF_COPY(pg_geom_in, 0);
        PG_RETURN_POINTER(pg_geom_out);
}

References gserialized_ndims(), lwgeom_force_4d(), lwgeom_free(), and lwgeom_from_gserialized().

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