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test_interpolate.cc
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Mon, Aug 26, 14:23
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rAKA akantu
test_interpolate.cc
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/**
* @file test_interpolate.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 17 2011
* @date last modification: Thu Jun 05 2014
*
* @brief test of the fem class
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 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 "aka_common.hh"
#include "fe_engine.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "mesh_io_msh.hh"
#include "shape_lagrange.hh"
#include "integrator_gauss.hh"
/* -------------------------------------------------------------------------- */
#include <cstdlib>
#include <fstream>
#include <iostream>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
akantu
::
initialize
(
argc
,
argv
);
debug
::
setDebugLevel
(
dblTest
);
const
ElementType
type
=
TYPE
;
UInt
dim
=
ElementClass
<
type
>::
getSpatialDimension
();
Real
eps
=
3e-13
;
std
::
cout
<<
"Epsilon : "
<<
eps
<<
std
::
endl
;
MeshIOMSH
mesh_io
;
Mesh
my_mesh
(
dim
);
std
::
stringstream
meshfilename
;
meshfilename
<<
type
<<
".msh"
;
mesh_io
.
read
(
meshfilename
.
str
(),
my_mesh
);
FEEngine
*
fem
=
new
FEEngineTemplate
<
IntegratorGauss
,
ShapeLagrange
>
(
my_mesh
,
dim
,
"my_fem"
);
//UInt nb_quadrature_points = FEEngine::getNbQuadraturePoints(type);
std
::
stringstream
outfilename
;
outfilename
<<
"out_"
<<
type
<<
".txt"
;
std
::
ofstream
my_file
(
outfilename
.
str
().
c_str
());
fem
->
initShapeFunctions
();
std
::
cout
<<
*
fem
<<
std
::
endl
;
Array
<
Real
>
const_val
(
fem
->
getMesh
().
getNbNodes
(),
2
,
"const_val"
);
UInt
nb_element
=
my_mesh
.
getNbElement
(
type
);
UInt
nb_quadrature_points
=
fem
->
getNbQuadraturePoints
(
type
)
*
nb_element
;
Array
<
Real
>
val_on_quad
(
nb_quadrature_points
,
2
,
"val_on_quad"
);
for
(
UInt
i
=
0
;
i
<
const_val
.
getSize
();
++
i
)
{
const_val
.
storage
()[
i
*
2
+
0
]
=
1.
;
const_val
.
storage
()[
i
*
2
+
1
]
=
2.
;
}
fem
->
interpolateOnQuadraturePoints
(
const_val
,
val_on_quad
,
2
,
type
);
my_file
<<
const_val
<<
std
::
endl
;
my_file
<<
val_on_quad
<<
std
::
endl
;
// interpolate coordinates
Array
<
Real
>
coord_on_quad
(
nb_quadrature_points
,
my_mesh
.
getSpatialDimension
(),
"coord_on_quad"
);
fem
->
interpolateOnQuadraturePoints
(
my_mesh
.
getNodes
(),
coord_on_quad
,
my_mesh
.
getSpatialDimension
(),
type
);
my_file
<<
my_mesh
.
getNodes
()
<<
std
::
endl
;
my_file
<<
coord_on_quad
<<
std
::
endl
;
delete
fem
;
finalize
();
return
EXIT_SUCCESS
;
}
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