# Synopsis

PDX_MSGT gdx_ConvertSurfaceToFace(long option, int gdx_model, double tolerance, int max_iters, MDA_PTR gdx_surf_ptr, MDA_PTR *gdx_face_ptr)

# Purpose

Convert a GDX surface entity to a GDX Face entity

# Description

Converts the following entity types to GDX_FACE: .nf .RS 3 GDX_NURB_SURF GDX_SPLINE_SURF GDX_RULED_SURF GDX_REV_SURF GDX_EXT_SURF GDX_OFFSET_SURF GDX_RECT_TRIM_SURF GDX_PLANE GDX_CONE GDX_CYLINDER GDX_SPHERE GDX_TORUS .RE .fi

# Input

## option

Options (not used)

## gdx_model

The model to create the GDX surface in

## tolerance

The tolerance to be used for approximation

## max_iters

The maximum number of iterations for approximation

## gdx_surf_ptr

The GDX surface database pointer

# Output

## gdx_face_ptr

The GDX face database pointer.

# Return

          GDX_NOERR
          GDX_ENTITYNOTSURFACE
          Low level error return
          .fi