/usr/include/dolfin/ale/MeshDisplacement.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 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | // Copyright (C) 2013 Jan Blechta
//
// 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: 2013-03-05
// Last changed: 2013-03-05
#ifndef __MESH_DISPLACEMENT_H
#define __MESH_DISPLACEMENT_H
#include <vector>
#include <ufc.h>
#include <dolfin/common/Array.h>
#include <dolfin/function/Expression.h>
#include <dolfin/function/Function.h>
namespace dolfin
{
class Mesh;
/// This class encapsulates the CG1 representation of the
/// displacement of a mesh as an Expression. This is particularly
/// useful for the displacement returned by mesh smoothers which can
/// subsequently be used in evaluating forms. The value rank is 1
/// and the value shape is equal to the geometric dimension of the
/// mesh.
class MeshDisplacement : public Expression
{
public:
/// Create MeshDisplacement of given mesh
///
/// *Arguments*
/// mesh (_Mesh_)
/// Mesh to be displacement defined on.
MeshDisplacement(const Mesh& mesh);
/// Copy constructor
///
/// *Arguments*
/// mesh_displacement (_MeshDisplacement_)
/// Object to be copied.
MeshDisplacement(const MeshDisplacement& mesh_displacement);
/// Destructor
virtual ~MeshDisplacement();
/// Extract subfunction
/// In python available as MeshDisplacement.sub(i)
///
/// *Arguments*
/// i (std::size_t)
/// Index of subfunction.
Function& operator[] (const std::size_t i);
/// Extract subfunction. Const version
///
/// *Arguments*
/// i (std::size_t)
/// Index of subfunction.
const Function& operator[] (const std::size_t i) const;
/// Evaluate at given point in given cell.
///
/// *Arguments*
/// values (_Array_ <double>)
/// The values at the point.
/// x (_Array_ <double>)
/// The coordinates of the point.
/// cell (ufc::cell)
/// The cell which contains the given point.
virtual void eval(Array<double>& values,
const Array<double>& x,
const ufc::cell& cell) const;
/// Compute values at all mesh vertices.
///
/// *Arguments*
/// vertex_values (_Array_ <double>)
/// The values at all vertices.
/// mesh (_Mesh_)
/// The mesh.
virtual void compute_vertex_values(std::vector<double>& vertex_values,
const Mesh& mesh) const;
protected:
const std::size_t _dim;
std::vector<Function> _displacements;
};
}
#endif
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