/usr/include/libmesh/edge_edge2.h is in libmesh-dev 0.7.1-2ubuntu1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 | // $Id: edge_edge2.h 3874 2010-07-02 21:57:26Z roystgnr $
// The libMesh Finite Element Library.
// Copyright (C) 2002-2008 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
// This library 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 2.1 of the License, or (at your option) any later version.
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef __edge2_h__
#define __edge2_h__
// C++ includes
// Local includes
#include "libmesh_common.h"
#include "edge.h"
namespace libMesh
{
/**
* The \p Edge2 is an element in 1D composed of 2 nodes. It is numbered
* like this:
*
\verbatim
EDGE2: o--------o
0 1
\endverbatim
*/
// ------------------------------------------------------------
// Edge class definition
class Edge2 : public Edge
{
public:
/**
* Constructor. By default this element has no parent.
*/
Edge2 (Elem* p=NULL) :
Edge(Edge2::n_nodes(), p) {}
/**
* Constructor. Explicitly specifies the number of
* nodes and neighbors for which storage will be allocated.
*/
Edge2 (const unsigned int nn,
const unsigned int ns,
Elem* p) :
Edge(nn, p) { libmesh_assert (ns == 0); }
/**
* @returns 1
*/
unsigned int n_sub_elem() const { return 1; }
/**
* @returns true iff the specified (local) node number is a vertex.
*/
virtual bool is_vertex(const unsigned int i) const;
/**
* @returns true iff the specified (local) node number is an edge.
*/
virtual bool is_edge(const unsigned int i) const;
/**
* @returns true iff the specified (local) node number is a face.
*/
virtual bool is_face(const unsigned int i) const;
/*
* @returns true iff the specified (local) node number is on the
* specified side
*/
virtual bool is_node_on_side(const unsigned int n,
const unsigned int s) const;
/*
* @returns true iff the specified (local) node number is on the
* specified edge (i.e. "returns true" in 1D)
*/
virtual bool is_node_on_edge(const unsigned int n,
const unsigned int e) const;
/*
* @returns true iff the element map is definitely affine within
* numerical tolerances
*/
virtual bool has_affine_map () const { return true; }
/**
* @returns \p EDGE2
*/
ElemType type() const { return EDGE2; }
/**
* @returns FIRST
*/
Order default_order() const { return FIRST; }
virtual void connectivity(const unsigned int sc,
const IOPackage iop,
std::vector<unsigned int>& conn) const;
/**
* An optimized method for computing the length of a 2-node edge.
*/
virtual Real volume () const;
#ifdef LIBMESH_ENABLE_INFINITE_ELEMENTS
/**
* @returns \p false. This is a finite element.
*/
bool infinite () const { return false; }
#endif
protected:
#ifdef LIBMESH_ENABLE_AMR
/**
* Matrix used to create the elements children.
*/
float embedding_matrix (const unsigned int i,
const unsigned int j,
const unsigned int k) const
{ return _embedding_matrix[i][j][k]; }
/**
* Matrix that computes new nodal locations/solution values
* from current nodes/solution.
*/
static const float _embedding_matrix[2][2][2];
#endif
};
} // namespace libMesh
#endif
|