/usr/include/CGAL/OTR_2/Cost.h is in libcgal-dev 4.11-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// 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
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// 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.
//
// $URL$
// $Id$
//
// Author(s) : Fernando de Goes, Pierre Alliez, Ivo Vigan, Clément Jamin
#ifndef CGAL_OTR2_COST_H_
#define CGAL_OTR2_COST_H_
#include <CGAL/license/Optimal_transportation_reconstruction_2.h>
#include <algorithm>
namespace CGAL {
namespace OTR_2 {
template <class FT>
class Cost
{
private:
FT m_norm;
FT m_tang;
FT m_max_norm;
FT m_max_tang;
public:
Cost()
: m_norm(0),
m_tang(0),
m_max_norm(0),
m_max_tang(0)
{}
Cost(const FT norm, const FT tang)
: m_norm(norm),
m_tang(tang),
m_max_norm(norm),
m_max_tang(tang)
{}
~Cost() {}
Cost& operator= (const Cost& cost)
{
m_norm = cost.norm();
m_tang = cost.tang();
m_max_norm = cost.max_norm();
m_max_tang = cost.max_tang();
return *this;
}
const FT norm() const { return m_norm; }
const FT tang() const { return m_tang; }
const FT max_norm() const { return m_max_norm; }
const FT max_tang() const { return m_max_tang; }
FT finalize(const FT alpha = FT(0.5)) const
{
return FT(2) * (alpha * m_norm + (FT(1) - alpha) * m_tang);
}
void divide(const FT ratio)
{
CGAL_assertion(ratio != FT(0));
m_norm /= ratio;
m_tang /= ratio;
}
void add(const Cost& cost, const FT mass = FT(1))
{
m_norm += mass * cost.norm();
m_tang += mass * cost.tang();
}
void reset_max()
{
m_max_norm = FT(0);
m_max_tang = FT(0);
}
void update_max(const Cost& cost)
{
m_max_norm = (std::max)(m_max_norm, cost.max_norm());
m_max_tang = (std::max)(m_max_tang, cost.max_tang());
}
void compute_max(const FT norm, const FT tang)
{
m_max_norm = (std::max)(m_max_norm, norm);
m_max_tang = (std::max)(m_max_tang, tang);
}
};
} } // namespaces
#endif // CGAL_OTR2_COST_H_
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