/usr/include/dolfin/mesh/PeriodicBoundaryComputation.h is in libdolfin-dev 1.4.0+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | // Copyright (C) 2013 Garth N. Wells
//
// 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/>.
//
// First added: 2012-01-10
// Last changed:
#ifndef __PERIODIC_BOUNDARY_COMPUTATION_H
#define __PERIODIC_BOUNDARY_COMPUTATION_H
#include <map>
#include <utility>
#include <vector>
#include <dolfin/common/constants.h>
#include <dolfin/mesh/MeshFunction.h>
namespace dolfin
{
class Mesh;
class SubDomain;
/// This class computes map from slave entity to master entity
class PeriodicBoundaryComputation
{
public:
/// For entities of dimension dim, compute map from a slave entity
/// on this process (local index) to its master entity (owning
/// process, local index on owner). If a master entity is shared
/// by processes, only one of the owning processes is returned.
static std::map<unsigned int, std::pair<unsigned int, unsigned int> >
compute_periodic_pairs(const Mesh& mesh, const SubDomain& sub_domain,
const std::size_t dim);
/// This function returns a MeshFunction which marks mesh entities
/// of dimension dim according to:
///
/// 2: slave entities
/// 1: master entities
/// 0: all other entities
///
/// It is useful for visualising and debugging the Expression::map
/// function that is used to apply periodic boundary conditions.
static MeshFunction<std::size_t>
masters_slaves(std::shared_ptr<const Mesh> mesh,
const SubDomain& sub_domain, const std::size_t dim);
private:
// Return true is point lies within bounding box
static bool in_bounding_box(const std::vector<double>& point,
const std::vector<double>& bounding_box,
const double tol);
};
}
#endif
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