# Synopsis

PDX_MSGT gdx_PolyShellGetMidPnt(long option, MDA_PTR gdx_ps_ptr, MTH_3DPNT mid_point)

# Purpose

Calculate the UV midpoint of the given surface of the poly shell.

# Description

Calculate the UV midpoint of the given surface of the poly shell.

# Input

## option

Options (not used)

## gdx_ps_ptr

Database pointer of poly shell

# Output

## mid_point

Mid point of the surface

# Return

          GDX_NOERR
          Low level error return
          .fi