diameter.hh

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
//
// SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#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