/usr/include/dolfin/mesh/TetrahedronCell.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.
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 | // Copyright (C) 2006-2008 Anders Logg
//
// 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 Johan Hoffman, 2006.
// Modified by Garth N. Wells, 2006.
// Modified by Kristoffer Selim, 2008.
//
// First added: 2006-06-05
// Last changed: 2010-01-15
#ifndef __TETRAHEDRON_CELL_H
#define __TETRAHEDRON_CELL_H
#include "CellType.h"
namespace dolfin
{
class Cell;
/// This class implements functionality for tetrahedral meshes.
class TetrahedronCell : public CellType
{
public:
/// Specify cell type and facet type
TetrahedronCell() : CellType(tetrahedron, triangle) {}
/// Return topological dimension of cell
uint dim() const;
/// Return number of entitites of given topological dimension
uint num_entities(uint dim) const;
/// Return number of vertices for entity of given topological dimension
uint num_vertices(uint dim) const;
/// Return orientation of the cell
uint orientation(const Cell& cell) const;
/// Create entities e of given topological dimension from vertices v
void create_entities(uint** e, uint dim, const uint* v) const;
/// Regular refinement of cell
void refine_cell(Cell& cell, MeshEditor& editor, uint& current_cell) const;
/// Irregular refinement of cell
void refine_cellIrregular(Cell& cell, MeshEditor& editor,
uint& current_cell, uint refinement_rule,
uint* marked_edges) const;
/// Compute volume of tetrahedron
double volume(const MeshEntity& tetrahedron) const;
/// Compute diameter of tetrahedron
double diameter(const MeshEntity& tetrahedron) const;
/// Compute component i of normal of given facet with respect to the cell
double normal(const Cell& cell, uint facet, uint i) const;
/// Compute normal of given facet with respect to the cell
Point normal(const Cell& cell, uint facet) const;
/// Compute the area/length of given facet with respect to the cell
double facet_area(const Cell& cell, uint facet) const;
/// Order entities locally
void order(Cell& cell, const MeshFunction<uint>* global_vertex_indices) const;
/// Return description of cell type
std::string description(bool plural) const;
private:
// Find local index of edge i according to ordering convention
uint find_edge(uint i, const Cell& cell) const;
};
}
#endif
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