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example_parser.cc
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rAKA akantu
example_parser.cc
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/**
* @file example_parser.cc
* @author Fabian Barras <fabian.barras@epfl.ch>
* @date Mon Dec 14 09:45:20 2015
*
* @brief Example on how to parse input text file
*
* @section LICENSE
*
* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu 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 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
/* -------------------------------------------------------------------------- */
#include <limits>
#include <fstream>
#include <iostream>
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "mesh.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
// Precise in initialize the name of the text input file to parse.
initialize
(
"input_file.dat"
,
argc
,
argv
);
// Get the user ParserSection.
const
ParserSection
&
usersect
=
getUserParser
();
// getParameterValue() allows to extract data associated to a given parameter name
// and cast it in the desired type set as template paramter.
Mesh
mesh
(
usersect
.
getParameterValue
<
UInt
>
(
"spatial_dimension"
));
mesh
.
read
(
usersect
.
getParameterValue
<
std
::
string
>
(
"mesh_file"
));
// getParameter() can be used with variable declaration (destination type is explicitly known).
UInt
max_iter
=
usersect
.
getParameter
(
"max_nb_iterations"
);
Real
precision
=
usersect
.
getParameter
(
"precision"
);
// Following NumPy convention, data can be interpreted as Vector or Matrix structures.
Matrix
<
Real
>
eigen_stress
=
usersect
.
getParameter
(
"stress"
);
SolidMechanicsModel
model
(
mesh
);
mesh
.
createGroupsFromMeshData
<
std
::
string
>
(
"physical_names"
);
model
.
initFull
(
SolidMechanicsModelOptions
(
_static
));
model
.
applyBC
(
BC
::
Dirichlet
::
FixedValue
(
0.0
,
_x
),
usersect
.
getParameterValue
<
std
::
string
>
(
"outter_crust"
));
model
.
applyBC
(
BC
::
Dirichlet
::
FixedValue
(
0.0
,
_y
),
usersect
.
getParameterValue
<
std
::
string
>
(
"outter_crust"
));
model
.
applyBC
(
BC
::
Neumann
::
FromStress
(
eigen_stress
),
usersect
.
getParameterValue
<
std
::
string
>
(
"inner_holes"
));
model
.
setDirectory
(
"./paraview"
);
model
.
setBaseName
(
"swiss_cheese"
);
model
.
addDumpFieldVector
(
"displacement"
);
model
.
solveStep
<
_scm_newton_raphson_tangent
,
_scc_increment
>
(
precision
,
max_iter
);
model
.
dump
();
finalize
();
return
EXIT_SUCCESS
;
}
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