ST_QuantizeCoordinates()

Datum ST_QuantizeCoordinates

(

PG_FUNCTION_ARGS

)

Definition at line 3053 of file lwgeom_functions_basic.c.

{
        GSERIALIZED* input;
        GSERIALIZED* result;
        LWGEOM* g;
        int32_t prec_x;
        int32_t prec_y;
        int32_t prec_z;
        int32_t prec_m;
 
        if (PG_ARGISNULL(0))
                PG_RETURN_NULL();
        if (PG_ARGISNULL(1))
        {
                lwpgerror("Must specify precision");
                PG_RETURN_NULL();
        }
        else
        {
                prec_x = PG_GETARG_INT32(1);
        }
        prec_y = PG_ARGISNULL(2) ? prec_x : PG_GETARG_INT32(2);
        prec_z = PG_ARGISNULL(3) ? prec_x : PG_GETARG_INT32(3);
        prec_m = PG_ARGISNULL(4) ? prec_x : PG_GETARG_INT32(4);
 
        input = PG_GETARG_GSERIALIZED_P_COPY(0);
 
        g = lwgeom_from_gserialized(input);
 
        lwgeom_trim_bits_in_place(g, prec_x, prec_y, prec_z, prec_m);
 
        result = geometry_serialize(g);
        lwgeom_free(g);
        PG_FREE_IF_COPY(input, 0);
        PG_RETURN_POINTER(result);
}

References geometry_serialize(), lwgeom_free(), lwgeom_from_gserialized(), and lwgeom_trim_bits_in_place().

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