diameter.hh

Go to the documentation of this file.

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*****************************************************************************
 *   See the file COPYING for full copying permissions.                      *
 *                                                                           *
 *   This program is free software: 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.                                     *
 *                                                                           *
 *   This program is distributed in the hope that it will be useful,         *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
 *   GNU General Public License for more details.                            *
 *                                                                           *
 *   You should have received a copy of the GNU General Public License       *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
 *****************************************************************************/
#ifndef DUMUX_GEOMETRY_DIAMETER_HH
#define DUMUX_GEOMETRY_DIAMETER_HH
 
#include <algorithm>
 
namespace Dumux {

template<class Geometry>
typename Geometry::ctype diameter(const Geometry& geo)
{
    using std::max;
    typename Geometry::ctype h = 0.0;
    for (std::size_t i = 0; i < geo.corners(); ++i)
        for (std::size_t j = i + 1; j < geo.corners(); ++j)
            h = max(h, (geo.corner(i)-geo.corner(j)).two_norm());
 
    return h;
}
 
} // end namespace Dumux
 
#endif