Synopsis

PDX_MSGT gdx_SplitNurbSurfAtDiscont(long option, MDA_PTR db_ptr, double *cont_toler, int cont_deg, int model, long *num_of_cont_surf, void *gdx_nurb_surfs)

Purpose

Get the set of continuous GDX NURB Surfaces

Description

Gets the set of continuous GDX NURB Surfaces that are continuous to degree cont_deg within cont_toler. If the num_of_cont_surf is equal to zero(0) than the original GDX NURB Surface was continuous everywhere to degree cont_deg and within cont_toler tolerance. The GDX NURB Surface entity must be a valid GDX definition.

Input

option

GDX_GTEST

Test for G continuity for derivatives to 2

GDX_COMMIT

Commit the definition to the database

db_ptr

The GDX NURB Surface entity database pointer.

cont_toler

The continuity tolerance. The distance between the derivatives must be less then or equal this value to have derivative continuity .nf [0] = Model Space Distance (G0) [1] = Radian angular difference (G1) [2] = Curvature difference (G2) [3] = Normalized derivative difference .fi

cont_deg

The degree of continuity desired

model

The model where the new continuous GDX NURB Surface entities are created

Output

num_of_cont_surf

The number of continuous GDX NURB Surface entities

gdx_nurb_surfs

The continuous GDX NURB Surface entity database pointers or structure pointers

Tolerances

      NORMAL_MAG_TOL
      ZERO_TOL
      MODEL_SPACE_PNT_TOL
      .fi

Return

      GDX_NOERR
      GDX_NOMEMORY
      GDX_INVALIDMODEL
      Low level error return
      .fi