# Synopsis

PDX_MSGT gdx_AddApproxSurfaceParmPoint(double u_parm, double v_parm, double u_start, double v_start, double u_end, double v_end)

# Purpose

Add a surface parameter point

# Description

If the option has been specified to generate parameter points, the normalized(0.0 - 1.0) parameter values is calcuated and added to the approximation parameter points list.

# Input

## u_parm

The U parameter value on the surface

## v_parm

The V parameter value on the surface

## u_start

The surface U start parameter value

## v_start

The surface V start parameter value

## u_end

The surface U end parameter value

## v_end

The surface V end parameter value

# Return

          GDX_NOERR
          Low level error return
          .fi