# Synopsis

PDX_MSGT gdx_SurfaceIsInfinite(long option, MDA_PTR gdx_surf_ptr, int *u_infinite, int *v_infinite)

# Purpose

Check to see if Surface is infinite or not

# Description

Checks to see if the GDX surface is infinite. u_infinite will be set to 1 if the surface is infinite in u direction. v_infinite will be set to 1 if the surface is infinite in v direction. Only four GDX surfaces can be infinite: .nf GDX_CONE GDX_CYLINDER GDX_EXTSURF GDX_PLANE .fi

# Input

## option

Option (Not used)

## gdx_surf_ptr

The surface database pointer

# Output

## u_infinite

### 1

Surface is infinite in u direction

### 0

Surface is not infinite (bounded) in u direction.

## v_infinite

### 1

Surface is infinite in v direction

### 0

Surface is not infinite (bounded) in v direction.

# Tolerances

             MODEL_SPACE_PNT_TOL
          .fi

# Return

             Low level error return
          .fi