/usr/include/libmesh/matlab_io.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | // $Id: matlab_io.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 __matlab_io_h__
#define __matlab_io_h__
// Local includes
#include "libmesh_common.h"
#include "mesh_input.h"
namespace libMesh
{
// Forward declarations
class MeshBase;
/**
* This class implements reading meshes in the Matlab PDE toolkit
* in a proprietary format.
*
* A VALID INPUT FILE for this type of mesh should be
* generated in Matlab with the following steps:
* 1.) Draw the domain and triangulate it in the GUI
* 2.) Export the mesh to matlab using Mesh->Export Mesh
* 3.) Create a file with this script:
* fid = fopen('filename', 'w');
* fprintf(fid, '%d %d \n', length(p), length(t));
* fprintf(fid, '%f %f \n', p);
* fprintf(fid, '%d %d %d %d \n', t);
* fclose(fid);
*
* What's going on here?
* There is no standard for exporting PDE toolkit meshes
* to files in Matlab. When you choose "export mesh" in the GUI,
* it returns three matrices that it likes to call
* p, e, and t. All meshes (as far as I can tell) that
* come from the PDE toolkit are 2D triangle meshes.
*
* p is the point matrix...
* Row 1: x coordinate
* Row 2: y coordinate
*
* e is the edge matrix ...
* Row 1: starting point number (dummy)
* Row 2: ending point number (dummy)
* Row 3: starting parameter value (?) (dummy)
* Row 4: ending parameter value (?) (dummy)
* Row 5: boundary segment number (?) (dummy)
* Row 6: left-hand subdomain number (dummy)
* Row 7: right-hand subdomain number (dummy)
*
* t is the triangle matrix ...
* Row 1: Node number 1
* Row 2: Node number 2
* Row 3: Node number 3
* Row 4: subdomain number (dummy)
*
* There are some important things to notice here:
* o The implied ordering of the p matrix is 1..N
* o The e matrix is entirely irrelevant in this code
* o All of the matrices are row based
*
* @author John W. Peterson, 2004
*/
// ------------------------------------------------------------
// MatlabIO class definition
class MatlabIO : public MeshInput<MeshBase>
{
public:
/**
* Constructor. Takes a non-const Mesh reference which it
* will fill up with elements.
*/
MatlabIO (MeshBase&);
/**
* Reads in a matlab data file based on the string
* you pass it.
*/
virtual void read (const std::string& name);
private:
/**
* Implementation of the read() function. This function
* is called by the public interface function and implements
* reading the file.
*/
virtual void read_stream (std::istream& in);
};
// ------------------------------------------------------------
// MatlabIO inline members
inline
MatlabIO::MatlabIO (MeshBase& mesh) :
MeshInput<MeshBase> (mesh)
{}
} // namespace libMesh
#endif // #define __matlab_io_h__
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