OCCT

// Created on: 1995-07-17
// Created by: Modelistation
// Copyright (c) 1995-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <HLRBRep_CurveTool.hxx>

//=================================================================================================

int HLRBRep_CurveTool::NbSamples(const HLRBRep_CurvePtr C)
{
  GeomAbs_CurveType typC     = ((HLRBRep_Curve*)C)->GetType();
  static double     nbsOther = 10.0;
  double            nbs      = nbsOther;

  if (typC == GeomAbs_Line)
  {
    nbs = 2;
  }
  else if (typC == GeomAbs_BezierCurve)
  {
    nbs = 3 + ((HLRBRep_Curve*)C)->NbPoles();
  }
  else if (typC == GeomAbs_BSplineCurve)
  {
    nbs = ((HLRBRep_Curve*)C)->NbKnots();
    nbs *= ((HLRBRep_Curve*)C)->Degree();
    if (nbs < 2.0)
    {
      nbs = 2;
    }
  }
  if (nbs > 50)
  {
    nbs = 50;
  }
  return ((int)nbs);
}

//=================================================================================================

int HLRBRep_CurveTool::NbSamples(const HLRBRep_CurvePtr C, const double u1, const double u2)
{
  GeomAbs_CurveType typC     = ((HLRBRep_Curve*)C)->GetType();
  static double     nbsOther = 10.0;
  double            nbs      = nbsOther;

  if (typC == GeomAbs_Line)
  {
    nbs = 2;
  }
  else if (typC == GeomAbs_BezierCurve)
  {
    nbs = 3 + ((HLRBRep_Curve*)C)->NbPoles();
  }
  else if (typC == GeomAbs_BSplineCurve)
  {
    occ::handle<Geom_Curve> aCurve = ((HLRBRep_Curve*)C)->Curve().Curve().Curve();
    GeomAdaptor_Curve       GAcurve(aCurve, u1, u2);
    nbs = GAcurve.NbIntervals(GeomAbs_CN) + 1;
    nbs *= ((HLRBRep_Curve*)C)->Degree();
    if (nbs < 2.0)
    {
      nbs = 2;
    }
  }
  if (nbs > 50)
  {
    nbs = 50;
  }
  return ((int)nbs);
}