/usr/include/dolfin/refinement/PlazaRefinementND.h is in libdolfin-dev 2016.2.0-2.
This file is owned by root:root, with mode 0o644.
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | // Copyright (C) 2014 Chris Richardson
//
// 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/>.
//
#ifndef __PLAZA_REFINEMENT_ND_H
#define __PLAZA_REFINEMENT_ND_H
namespace dolfin
{
class Mesh;
class MeshRelation;
class ParallelRefinement;
/// Implementation of the refinement method described in
/// Plaza and Carey "Local reļ¬nement of simplicial grids
/// based on the skeleton"
/// (Applied Numerical Mathematics 32 (2000) 195-218)
///
class PlazaRefinementND
{
public:
/// Uniform refine, optionally redistributing and
/// optionally calculating the parent-child relation for facets (in 2D)
static void refine(Mesh& new_mesh, const Mesh& mesh, bool redistribute,
bool calculate_parent_facets);
/// Refine with markers, optionally redistributing
/// and optionally calculating the parent-child relation for facets (in 2D)
static void refine(Mesh& new_mesh, const Mesh& mesh,
const MeshFunction<bool>& refinement_marker,
bool redistribute,
bool calculate_parent_facets);
/// Refine with markers, optionally calculating facet relations, and
/// saving relation data in MeshRelation structure
static void refine(Mesh& new_mesh, const Mesh& mesh,
const MeshFunction<bool>& refinement_marker,
bool calculate_parent_facets,
MeshRelation& mesh_relation);
/// Get the subdivision of an original simplex into smaller
/// simplices, for a given set of marked edges, and the
/// longest edge of each facet (cell local indexing).
/// A flag indicates if a uniform subdivision is preferable in 2D.
static void get_simplices
(std::vector<std::size_t>& simplex_set,
const std::vector<bool>& marked_edges,
const std::vector<std::size_t>& longest_edge,
std::size_t tdim, bool uniform);
private:
// Get the longest edge of each face (using local mesh index)
static void face_long_edge(std::vector<unsigned int>& long_edge,
std::vector<bool>& edge_ratio_ok,
const Mesh& mesh);
// 2D version of subdivision allowing for uniform subdivision (flag)
static void get_triangles
(std::vector<std::size_t>& tri_set,
const std::vector<bool>& marked_edges,
const std::size_t longest_edge,
bool uniform);
// 3D version of subdivision
static void get_tetrahedra
(std::vector<std::size_t>& tet_set,
const std::vector<bool>& marked_edges,
const std::vector<std::size_t>& longest_edge);
// Convenient interface for both uniform and marker refinement
static void do_refine(Mesh& new_mesh, const Mesh& mesh,
ParallelRefinement& p_ref,
const std::vector<unsigned int>& long_edge,
const std::vector<bool>& edge_ratio_ok,
bool redistribute,
bool calculate_parent_facets,
MeshRelation& mesh_relation);
// Propagate edge markers according to rules (longest edge
// of each face must be marked, if any edge of face is marked)
static void enforce_rules(ParallelRefinement& p_ref,
const Mesh& mesh,
const std::vector<unsigned int>& long_edge);
// Add parent facet markers to new mesh, based on new vertices
// Only works in 2D at present
static void set_parent_facet_markers(const Mesh& mesh, Mesh& new_mesh,
const std::map<std::size_t, std::size_t>& new_vertex_map);
};
}
#endif
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