# Synopsis

PDX_MSGT gdx_NurbSurfToParmSpl(long option, int model, MDA_PTR db_ptr, double clo_tol, void *gdx_pssurf)

# Purpose

Create a GDX Parametric Spline Surface from a non-rational GDX NURBS Surface.

# Description

Create a GDX parametric spline surface from a GDX NURB Surface. Only the relimited portion of the Nurbs surface is converted. This function assumes that the GDX NURB Surface corresponding to db_ptr is non-rational.

# Input

## option

### GDX_COMMIT

Entity creation option. If set, then commit GDX entity to the database. The default is do not commit.

## model

The model to create the GDX entity in.

## db_ptr

The GDX entity database pointer

## clo_tol

Tolerance to check for surface closure.

# Output

## gdx_pssurf

Pointer to the created GDX parametric spline surface.

# Return

          GDX_NOERR
          Low level error return
          .fi