Synopsis

PDX_MSGT gdx_SolidNurbsToNurbs(long option, int curve_deg, int surf_deg, double tolerance, int maxits, MDA_PTR gdx_solid_ptr)

Purpose

Convert a NURBS in GDX solid to specific characteristic NURBS.

Description

Cycle through the faces and convert all NURBS data to NURBS data. If a parm change occurs during the surface conversion, then the parm curves will be deleted.

If the nurb curves/surface meets the criteria of options, it will not be modified. If an entity passed in is not a nurb, it will not be modified.

The surf_deg, tolerance and maxits are used during the approximation.

Input

option

GDX_NURBS_CLAMP

Non clampped nurb curves/surface will be clamped. This option can not be used with GDX_NURBS_MAKE_UNIFORM

GDX_NURBS_REPARAM

Nurb curves/surface will be reparametized between 0.0 and 1.0. This option can not be used with GDX_NURBS_MAKE_UNIFORM

GDX_NURBS_MAKE_UNIFORM

Nurb curves/surface will be approximated to uniform knots nurb curves/surface. This option can not be used with GDX_NURBS_CLAMP, GDX_NURBS_REPARAM or GDX_NURBS_MAKE_BEZIER.

GDX_NURBS_NONRATIONAL

Rational nurb curves/surface will be approximated to non-rational nurb surface. This option can not be used with GDX_KEEPRRAT

GDX_NURBS_MAKE_BEZIER

Non-bezier nurb curves/surface will be approximated to bezier nurb. This option overides GDX_NURBS_CLAMP and GDX_NURBS_NONRATIONAL options.

GDX_NURBS_FORCE_DEGREE

Nurb curves/surface will be converted/approximated to the specified degree. This option can not be used with GDX_NURBS_REDUCE_DEGREE or GDX_NURBS_ELEVATE_DEGREE.

GDX_NURBS_REDUCE_DEGREE

Nurb curves/surface exceed the specified degree will be approximated to the degree specified. This option can not be used with GDX_NURBS_FORCE_DEGREE or GDX_NURBS_ELEVATE_DEGREE.

GDX_NURBS_ELEVATE_DEGREE

Nurb curves/surface degree less than the specified degree will be converted to the degree specified. This option can not be used with GDX_NURBS_FORCE_DEGREE or GDX_NURBS_REDUCE_DEGREE.

GDX_KEEP_DEGREE_1

When conversion take place, degree 1 will be kept.

GDX_KEEPRAT

Keep rational when elevating the degree This option can not be used with GDX_NURBS_NONRATIONAL

curve_deg

The degree to approximate the GDX NURB curves when GDX NURB are converted with any DEGREE option specified.

surf_deg

The degree to approximate the GDX NURB surface when GDX NURB are converted with any DEGREE option specified.

tolerance

Tolerance used to approximate nurbs

maxits

Maximum number of iterations during approximation

gdx_solid_ptr

The database pointer for the GDX solid entity

Output

gdx_solid_ptr

The database pointer for the GDX solid entity

Tolerances

      MODEL_SPACE_PNT_TOL
      PARM_SPACE_PNT_TOL
      .fi

Return

      GDX_NOERR
      GDX_INVALIDMODEL
      GDX_INVALIDENTITYTYPE
      Low level error return
      .fi