OCCT

// Created on: 1993-06-23
// Created by: Didier PIFFAULT
// Copyright (c) 1993-1999 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.

#ifndef _Intf_Tool_HeaderFile
#define _Intf_Tool_HeaderFile

#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>

#include <Standard_Integer.hxx>
class gp_Lin2d;
class Bnd_Box2d;
class gp_Hypr2d;
class gp_Parab2d;
class gp_Lin;
class Bnd_Box;
class gp_Hypr;
class gp_Parab;

//! Provides services to create box for infinites
//! lines in a given contexte.
class Intf_Tool
{
public:
  DEFINE_STANDARD_ALLOC

  Standard_EXPORT Intf_Tool();

  Standard_EXPORT void Lin2dBox(const gp_Lin2d&  theLin2d,
                                const Bnd_Box2d& bounding,
                                Bnd_Box2d&       boxLin);

  Standard_EXPORT void Hypr2dBox(const gp_Hypr2d& theHypr2d,
                                 const Bnd_Box2d& bounding,
                                 Bnd_Box2d&       boxHypr);

  Standard_EXPORT void Parab2dBox(const gp_Parab2d& theParab2d,
                                  const Bnd_Box2d&  bounding,
                                  Bnd_Box2d&        boxHypr);

  Standard_EXPORT void LinBox(const gp_Lin& theLin, const Bnd_Box& bounding, Bnd_Box& boxLin);

  Standard_EXPORT void HyprBox(const gp_Hypr& theHypr, const Bnd_Box& bounding, Bnd_Box& boxHypr);

  Standard_EXPORT void ParabBox(const gp_Parab& theParab,
                                const Bnd_Box&  bounding,
                                Bnd_Box&        boxHypr);

  Standard_EXPORT int NbSegments() const;

  Standard_EXPORT double BeginParam(const int SegmentNum) const;

  Standard_EXPORT double EndParam(const int SegmentNum) const;

private:
  Standard_EXPORT int Inters2d(const gp_Hypr2d& theCurve, const Bnd_Box2d& Domain);

  Standard_EXPORT int Inters2d(const gp_Parab2d& theCurve, const Bnd_Box2d& Domain);

  Standard_EXPORT int Inters3d(const gp_Hypr& theCurve, const Bnd_Box& Domain);

  Standard_EXPORT int Inters3d(const gp_Parab& theCurve, const Bnd_Box& Domain);

  int    nbSeg;
  double beginOnCurve[6];
  double endOnCurve[6];
  int    bord[12];
  double xint[12];
  double yint[12];
  double zint[12];
  double parint[12];
};

#endif // _Intf_Tool_HeaderFile