/usr/include/dolfin/mesh/BoundaryComputation.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 Niclas Jansson 2009.
//
// First added: 2006-06-21
// Last changed: 2010-03-02
#ifndef __BOUNDARY_COMPUTATION_H
#define __BOUNDARY_COMPUTATION_H
#include <vector>
#include <dolfin/common/types.h>
namespace dolfin
{
class BoundaryMesh;
class Facet;
class Mesh;
template <typename T> class MeshFunction;
/// This class implements provides a set of basic algorithms for
/// the computation of boundaries.
class BoundaryComputation
{
public:
/// Compute the exterior boundary of a given mesh
static void compute_exterior_boundary(const Mesh& mesh,
BoundaryMesh& boundary);
/// Compute the interior boundary of a given mesh
static void compute_interior_boundary(const Mesh& mesh,
BoundaryMesh& boundary);
private:
/// Compute the boundary of a given mesh
static void compute_boundary_common(const Mesh& mesh,
BoundaryMesh& boundary,
bool interior_boundary);
/// Reorder vertices so facet is right-oriented w.r.t. facet normal
static void reorder(std::vector<uint>& vertices, const Facet& facet);
};
}
#endif
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