# Synopsis

PDX_MSGT gdx_ParmSplToNurbSurf(long option, int model, MDA_PTR db_ptr, double kr_tol, void *gdx_sur)

# Purpose

Create GDX NURB Surface from GDX parametric spline surface.

# Description

Create a GDX NURB Surface from a GDX parametric spline surface. The resulting Nurbs surface will have the minimum number of interior knots possible, given the continuity of the surface.

# Input

## option

### GDX_COMMIT

If set, 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

## kr_tol

Tolerance for knot removal and surface closure (not used for knot removal).

# Output

## gdx_sur

Pointer to the created GDX NURB Surface.

# Return

          GDX_NOERR
          Low level error return
          .fi