forked from johannesgerer/jburkardt-cpp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gmsh_io.html
265 lines (234 loc) · 7.11 KB
/
gmsh_io.html
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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
<html>
<head>
<title>
GMSH_IO - Read and Write GMSH Mesh files
</title>
</head>
<body bgcolor="#EEEEEE" link="#CC0000" alink="#FF3300" vlink="#000055">
<h1 align = "center">
GMSH_IO <br> Read and Write GMSH Mesh files
</h1>
<hr>
<p>
<b>GMSH_IO</b>
is a C++ library which
can read and write the files used by the GMSH meshing program.
</p>
<h3 align = "center">
Licensing:
</h3>
<p>
The computer code and data files made available on this
web page are distributed under
<a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
</p>
<h3 align = "center">
Languages:
</h3>
<p>
<b>GMSH_IO</b> is available in
<a href = "../../c_src/gmsh_io/gmsh_io.html">a C version</a> and
<a href = "../../cpp_src/gmsh_io/gmsh_io.html">a C++ version</a> and
<a href = "../../f77_src/gmsh_io/gmsh_io.html">a FORTRAN77 version</a> and
<a href = "../../f_src/gmsh_io/gmsh_io.html">a FORTRAN90 version</a> and
<a href = "../../m_src/gmsh_io/gmsh_io.html">a MATLAB version</a>.
</p>
<h3 align = "center">
Related Data and Programs:
</h3>
<p>
<a href = "../../py_src/dolfin-convert/dolfin-convert.html">
DOLFIN-CONVERT</a>,
a Python program which
can convert a mesh file from Gmsh, MEDIT, METIS or SCOTCH format to an
XML format suitable for use by DOLFIN or FENICS,
by Anders Logg.
</p>
<p>
<a href = "../../cpp_src/fem_to_gmsh/fem_to_gmsh.html">
FEM_TO_GMSH</a>,
a C++ program which
reads FEM files definining a 1D, 2D or 3D mesh, namely
a file of node coordinates and a file of elements defined by
node indices, and creates a Gmsh mesh file.
</p>
<p>
<a href = "../../examples/gmsh/gmsh.html">
GMSH</a>,
examples which
illustrate the use of the Gmsh program,
a 1D, 2D or 3D mesh generator that can create meshes
suitable for use by the finite element method (FEM).
</p>
<p>
<a href = "../../cpp_src/gmsh_to_fem/gmsh_to_fem.html">
GMSH_TO_FEM</a>,
a C++ program which
reads a mesh data file created by the GMSH program
and writes a pair of node and element files that correspond
to the FEM format.
</p>
<p>
<a href = "../../data/msh/msh.html">
MSH</a>,
a data directory of examples of MSH files,
the native 3D mesh format used by Gmsh.
</p>
<p>
<a href = "../../examples/tethex/tethex.html">
TETHEX</a>,
examples which
illustrate the use of TETHEX,
a C++ program which
can read a Gmsh file defining a mesh of triangles or tetrahedrons,
and subdivide the mesh into quadrilaterals or hexahedrons, which
are suitable for use by the DEALII finite element program,
by Mikhail Artemiev.
</p>
<h3 align = "center">
Reference:
</h3>
<p>
<ol>
<li>
Christophe Geuzaine, Jean-Francois Remacle,<br>
Gmsh: a three-dimensional finite element mesh generator with
built-in pre- and post-processing facilities,<br>
International Journal for Numerical Methods in Engineering,<br>
Volume 79, Number 11, pages 1309-1331, 2009.
</li>
</ol>
</p>
<h3 align = "center">
Source Code:
</h3>
<p>
<ul>
<li>
<a href = "gmsh_io.cpp">gmsh_io.cpp</a>, the source code.
</li>
<li>
<a href = "gmsh_io.hpp">gmsh_io.hpp</a>, the include file.
</li>
<li>
<a href = "gmsh_io.sh">gmsh_io.sh</a>,
BASH commands to compile the source code.
</li>
</ul>
</p>
<h3 align = "center">
Examples and Tests:
</h3>
<p>
<ul>
<li>
<a href = "gmsh_io_prb.cpp">gmsh_io_prb.cpp</a>,
a sample calling program.
</li>
<li>
<a href = "gmsh_io_prb.sh">gmsh_io_prb.sh</a>,
BASH commands to compile and run the sample program.
</li>
<li>
<a href = "gmsh_io_prb_output.txt">gmsh_io_prb_output.txt</a>,
the output file.
</li>
</ul>
</p>
<h3 align = "center">
List of Routines:
</h3>
<p>
<ul>
<li>
<b>CH_CAP</b> capitalizes a single character.
</li>
<li>
<b>CH_EQI</b> is true if two characters are equal, disregarding case.
</li>
<li>
<b>CH_TO_DIGIT</b> returns the integer value of a base 10 digit.
</li>
<li>
<b>GMSH_DATA_READ</b> reads data from a GMSH file.
</li>
<li>
<b>GMSH_SIZE_READ</b> reads sizes from a GMSH file.
</li>
<li>
<b>GMSH_MESH2D_ELEMENT_DATA_EXAMPLE</b> returns element information for the example.
</li>
<li>
<b>GMSH_MESH2D_ELEMENT_SIZE_EXAMPLE</b> returns element sizes for the example.
</li>
<li>
<b>GMSH_MESH2D_NODE_DATA_EXAMPLE</b> returns node information for the example.
</li>
<li>
<b>GMSH_MESH2D_NODE_SIZE_EXAMPLE</b> returns the sizes of node information for the example.
</li>
<li>
<b>GMSH_MESH1D_WRITE</b> writes 1d mesh data as a Gmsh mesh file.
</li>
<li>
<b>GMSH_MESH2D_WRITE</b> writes 2d mesh data as a Gmsh mesh file.
</li>
<li>
<b>GMSH_MESH3D_WRITE</b> writes 3D mesh data as a Gmsh mesh file.
</li>
<li>
<b>I4MAT_COPY_NEW</b> copies an I4MAT to a "new" I4MAT.
</li>
<li>
<b>I4MAT_TRANSPOSE_PRINT</b> prints an I4MAT, transposed.
</li>
<li>
<b>I4MAT_TRANSPOSE_PRINT_SOME</b> prints some of an I4MAT, transposed.
</li>
<li>
<b>MESH_BASE_ONE</b> ensures that the element definition is one-based.
</li>
<li>
<b>R8_MAX</b> returns the maximum of two R8's.
</li>
<li>
<b>R8_MIN</b> returns the minimum of two R8's.
</li>
<li>
<b>R8MAT_COPY_NEW</b> copies one R8MAT to a "new" R8MAT.
</li>
<li>
<b>R8MAT_TRANSPOSE_PRINT</b> prints an R8MAT, transposed.
</li>
<li>
<b>R8MAT_TRANSPOSE_PRINT_SOME</b> prints some of an R8MAT, transposed.
</li>
<li>
<b>S_BEGIN</b> reports whether string 1 begins with string 2, ignoring case.
</li>
<li>
<b>S_LEN_TRIM</b> returns the length of a string to the last nonblank.
</li>
<li>
<b>S_TO_I4</b> reads an I4 from a string.
</li>
<li>
<b>S_TO_R8</b> reads an R8 from a string.
</li>
<li>
<b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
</li>
</ul>
</p>
<p>
You can go up one level to <a href = "../cpp_src.html">
the C++ source codes</a>.
</p>
<hr>
<i>
Last revised on 21 October 2014.
</i>
<!-- John Burkardt -->
</body>
<!-- Initial HTML skeleton created by HTMLINDEX. -->
</html>