/usr/include/dolfin/mesh/Box.h is in libdolfin1.0-dev 1.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// This file is part of DOLFIN.
//
// DOLFIN is free software: 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, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// Modified by Nuno Lopes, 2008.
//
// First added: 2005-12-02
// Last changed: 2011-12-07
#ifndef __BOX_H
#define __BOX_H
#include "Mesh.h"
namespace dolfin
{
/// Tetrahedral mesh of the 3D rectangular prism [x0, x1] x [y0, y1]
/// x [z0, z1]. Given the number of cells (nx, ny, nz) in each
/// direction, the total number of tetrahedra will be 6*nx*ny*nz and
/// the total number of vertices will be (nx + 1)*(ny + 1)*(nz + 1).
class Box : public Mesh
{
public:
/// Define a uniform finite element _Mesh_ over the rectangular prism
/// [x0, x1] x [y0, y1] x [z0, z1].
///
/// *Arguments*
/// x0 (double)
/// :math:`x`-min.
/// y0 (double)
/// :math:`y`-min.
/// z0 (double)
/// :math:`z`-min.
/// x1 (double)
/// :math:`x`-max.
/// y1 (double)
/// :math:`y`-max.
/// z1 (double)
/// :math:`z`-max.
/// xn (double)
/// Number of cells in :math:`x`-direction.
/// yn (double)
/// Number of cells in :math:`y`-direction.
/// zn (double)
/// Number of cells in :math:`z`-direction.
///
/// *Example*
/// .. code-block:: c++
///
/// // Mesh with 6 cells in each direction on the
/// // set [-1,2] x [-1,2] x [-1,2].
/// Box mesh(-1, -1, -1, 2, 2, 2, 6, 6, 6);
///
Box(double x0, double y0, double z0, double x1, double y1, double z1,
uint nx, uint ny, uint nz);
};
}
#endif
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