sturm_root_stack_traits.h

很多二维 三维几何计算算法 C++ 类库

// Copyright (c) 2005  Stanford University (USA).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.3-branch/Kinetic_data_structures/include/CGAL/Polynomial/Sturm_root_stack_traits.h $
// $Id: Sturm_root_stack_traits.h 35777 2007-01-23 17:02:20Z drussel $
// 
//
// Author(s)     : Daniel Russel <[e-mail]>

#ifndef CGAL_POLYNOMIAL_STURM_ROOT_ENUMERATOR_TRAITS_H
#define CGAL_POLYNOMIAL_STURM_ROOT_ENUMERATOR_TRAITS_H

#include <CGAL/Polynomial/basic.h>
#include <CGAL/Polynomial/Root_stack_default_traits.h>
#include <CGAL/Polynomial/internal/Rational/Euclidean_Sturm_sequence.h>
#include <CGAL/Polynomial/internal/Rational/Monic_Sturm_sequence.h>
#include <CGAL/Polynomial/internal/Rational/Primitive_part_Sturm_sequence.h>
#include <CGAL/Polynomial/internal/Rational/Reduced_Sturm_sequence.h>
#include <CGAL/Polynomial/internal/Rational/Subresultant_Sturm_sequence.h>
#include <CGAL/Polynomial/internal/Rational/Sturm_root_counter.h>

CGAL_POLYNOMIAL_BEGIN_NAMESPACE

template<class Polynomial>
class Sturm_root_stack_traits
  : public Root_stack_default_traits<Polynomial>
{
private:
  typedef Root_stack_default_traits<Polynomial>  Base;
  typedef Sturm_root_stack_traits<Polynomial>    Self;

public:
  typedef internal::Sturm_root_counter<Self> Root_count;
  typedef typename Base::Function            Function;


  typedef internal::Monic_Sturm_sequence<Self> Sturm_sequence;
 
  Sturm_sequence Sturm_sequence_object(const Function &f,
				       const Function &g) const
  {
    return Sturm_sequence(f, g, *this);
  }

  typedef internal::Standard_sequence<Sturm_sequence> Standard_sequence;
  Standard_sequence standard_sequence_object(const Function &f) const
  {
    return Standard_sequence(f, *this);
  }

  typedef internal::Sign_Sturm_sequence<Sturm_sequence> Sign_Sturm_sequence;
  Sign_Sturm_sequence sign_Sturm_sequence_object(const Function &f, const
						 Function &g) const
  {
    return Sign_Sturm_sequence(f, g, *this);
  }

  typedef internal::Root_bound_evaluator<Function> Root_bound;
  Root_bound root_bound_object(bool b = true) const
  {
    return Root_bound(b);
  }
};

CGAL_POLYNOMIAL_END_NAMESPACE
#endif                                            // CGAL_POLYNOMIAL_STURM_ROOT_ENUMERATOR_TRAITS_H