/usr/include/libmesh/mesh_smoother_laplace.h is in libmesh-dev 0.7.1-2ubuntu1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 | // $Id: mesh_smoother_laplace.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 __mesh_smoother_laplace_h__
#define __mesh_smoother_laplace_h__
// C++ Includes -----------------------------------
#include <vector>
// forward declarations
// Local Includes -----------------------------------
#include "mesh_smoother.h"
namespace libMesh
{
/**
* This class defines the data structures necessary
* for Laplace smoothing. Note that this is a simple
* averaging smoother, which does NOT guarantee that
* points will be smoothed to valid locations, e.g.
* locations inside the boundary! This aspect could
* use work.
*
* \author John W. Peterson
* \date 2002-2007
* \version $Revision: 3874 $
*/
// ------------------------------------------------------------
// LaplaceMeshSmoother class definition
class LaplaceMeshSmoother : public MeshSmoother
{
public:
/**
* Constructor. Sets the constant mesh reference
* in the protected data section of the class.
*/
LaplaceMeshSmoother(UnstructuredMesh& mesh)
: MeshSmoother(mesh),
_initialized(false) {}
/**
* Destructor.
*/
virtual ~LaplaceMeshSmoother() {}
/**
* Redefinition of the smooth function from the
* base class. All this does is call the smooth
* function in this class which takes an int, using
* a default value of 1.
*/
virtual void smooth() { this->smooth(1); }
/**
* The actual smoothing function, gets called whenever
* the user specifies an actual number of smoothing
* iterations.
*/
void smooth(unsigned int n_iterations);
/**
* Initialization for the Laplace smoothing routine
* is basically identical to building an "L-graph"
* which is expensive. It's provided separately from
* the constructor since you may or may not want
* to build the L-graph on construction.
*/
void init();
/**
* Mainly for debugging, this function will print
* out the connectivity graph which has been created.
*/
void print_graph() const;
private:
/**
* True if the L-graph has been created, false otherwise.
*/
bool _initialized;
/**
* Data structure for holding the L-graph
*/
std::vector<std::vector<unsigned int> > _graph;
};
} // namespace libMesh
#endif
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