/usr/include/libmesh/tree.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: tree.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 __tree_h__
#define __tree_h__
// C++ includes
// Local includes
#include "tree_node.h"
#include "tree_base.h"
namespace libMesh
{
// Forward Declarations
class MeshBase;
/**
* This class defines a tree that may be used for fast point
* location in space.
*
* @author Benjamin S. Kirk, 2002
*/
// ------------------------------------------------------------
// Tree class definition
template <unsigned int N>
class Tree : public TreeBase
{
public:
/**
* Constructor.
*/
Tree (const MeshBase& m, const unsigned int level, Trees::BuildType bt=Trees::NODES);
/**
* Copy-constructor.
*/
Tree (const Tree<N>& other_tree);
/**
* Destructor.
*/
~Tree() {}
/**
* Prints the nodes.
*/
void print_nodes(std::ostream& out=libMesh::out) const
{ out << "Printing nodes...\n"; root.print_nodes(out); }
/**
* Prints the nodes.
*/
void print_elements(std::ostream& out=libMesh::out) const
{ out << "Printing elements...\n"; root.print_elements(out); }
/**
* @returns the number of active bins.
*/
unsigned int n_active_bins() const { return root.n_active_bins(); }
/**
* @returns a pointer to the element containing point p.
*/
const Elem* find_element(const Point& p) const;
/**
* @returns a pointer to the element containing point p.
*/
const Elem* operator() (const Point& p) const;
private:
/**
* The tree root.
*/
TreeNode<N> root;
/**
* How the tree is built.
*/
const Trees::BuildType build_type;
};
/**
* For convenience we define QuadTrees and OctTrees
* explicitly.
*/
namespace Trees
{
/**
* A QuadTree is a tree appropriate
* for 2D meshes.
*/
typedef Tree<4> QuadTree;
/**
* An OctTree is a tree appropriate
* for 3D meshes.
*/
typedef Tree<8> OctTree;
}
// ------------------------------------------------------------
// Tree class inline methods
// copy-constructor
template <unsigned int N>
inline
Tree<N>::Tree (const Tree<N>& other_tree) :
TreeBase (other_tree),
root (other_tree.root),
build_type (other_tree.build_type)
{
libmesh_error();
}
template <unsigned int N>
inline
const Elem* Tree<N>::operator() (const Point& p) const
{
return this->find_element(p);
}
} // namespace libMesh
#endif
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