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fem.cc
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Created
Thu, Aug 22, 02:30
Size
5 KB
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text/x-c
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Sat, Aug 24, 02:30 (2 d)
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blob
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Handle
20076790
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rAKA akantu
fem.cc
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/**
* @file fem.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @date Fri Jul 16 11:03:02 2010
*
* @brief Implementation of the FEM class
*
* @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 "fem.hh"
#include "mesh.hh"
#include "element_class.hh"
#include "aka_math.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
FEM
::
FEM
(
Mesh
&
mesh
,
UInt
element_dimension
,
FEMID
id
,
MemoryID
memory_id
)
:
Memory
(
memory_id
),
id
(
id
)
{
AKANTU_DEBUG_IN
();
this
->
element_dimension
=
(
element_dimension
!=
0
)
?
element_dimension
:
mesh
.
getSpatialDimension
();
init
();
this
->
mesh
=
&
mesh
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
FEM
::
init
()
{
for
(
UInt
t
=
_not_defined
;
t
<
_max_element_type
;
++
t
)
{
this
->
normals_on_quad_points
[
t
]
=
NULL
;
}
}
/* -------------------------------------------------------------------------- */
FEM
::~
FEM
()
{
AKANTU_DEBUG_IN
();
mesh
=
NULL
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
FEM
::
assembleVector
(
const
Vector
<
Real
>
&
elementary_vect
,
Vector
<
Real
>
&
nodal_values
,
UInt
nb_degre_of_freedom
,
const
ElementType
&
type
,
GhostType
ghost_type
,
const
Vector
<
UInt
>
*
filter_elements
,
Real
scale_factor
)
const
{
AKANTU_DEBUG_IN
();
UInt
nb_element
;
UInt
*
conn_val
;
if
(
ghost_type
==
_not_ghost
)
{
nb_element
=
mesh
->
getNbElement
(
type
);
conn_val
=
mesh
->
getConnectivity
(
type
).
values
;
}
else
{
nb_element
=
mesh
->
getNbGhostElement
(
type
);
conn_val
=
mesh
->
getGhostConnectivity
(
type
).
values
;
}
UInt
nb_nodes_per_element
=
Mesh
::
getNbNodesPerElement
(
type
);
UInt
nb_nodes
=
mesh
->
getNbNodes
();
UInt
*
filter_elem_val
=
NULL
;
if
(
filter_elements
!=
NULL
)
{
nb_element
=
filter_elements
->
getSize
();
filter_elem_val
=
filter_elements
->
values
;
}
AKANTU_DEBUG_ASSERT
(
elementary_vect
.
getSize
()
==
nb_element
,
"The vector elementary_vect("
<<
elementary_vect
.
getID
()
<<
") has not the good size."
);
AKANTU_DEBUG_ASSERT
(
elementary_vect
.
getNbComponent
()
==
nb_degre_of_freedom
*
nb_nodes_per_element
,
"The vector elementary_vect("
<<
elementary_vect
.
getID
()
<<
") has not the good number of component."
);
AKANTU_DEBUG_ASSERT
(
nodal_values
.
getNbComponent
()
==
nb_degre_of_freedom
,
"The vector nodal_values("
<<
nodal_values
.
getID
()
<<
") has not the good number of component."
);
nodal_values
.
resize
(
nb_nodes
);
Real
*
elementary_vect_val
=
elementary_vect
.
values
;
Real
*
nodal_values_val
=
nodal_values
.
values
;
for
(
UInt
el
=
0
;
el
<
nb_element
;
++
el
)
{
UInt
el_offset
=
el
*
nb_nodes_per_element
;
if
(
filter_elements
!=
NULL
)
{
el_offset
=
filter_elem_val
[
el
]
*
nb_nodes_per_element
;
}
for
(
UInt
n
=
0
;
n
<
nb_nodes_per_element
;
++
n
)
{
UInt
node
=
conn_val
[
el_offset
+
n
];
UInt
offset_node
=
node
*
nb_degre_of_freedom
;
for
(
UInt
d
=
0
;
d
<
nb_degre_of_freedom
;
++
d
)
{
nodal_values_val
[
offset_node
+
d
]
+=
scale_factor
*
elementary_vect_val
[
d
];
}
elementary_vect_val
+=
nb_degre_of_freedom
;
}
}
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
FEM
::
printself
(
std
::
ostream
&
stream
,
int
indent
)
const
{
std
::
string
space
;
for
(
Int
i
=
0
;
i
<
indent
;
i
++
,
space
+=
AKANTU_INDENT
);
stream
<<
space
<<
"FEM ["
<<
std
::
endl
;
stream
<<
space
<<
" + id : "
<<
id
<<
std
::
endl
;
stream
<<
space
<<
" + element dimension : "
<<
element_dimension
<<
std
::
endl
;
stream
<<
space
<<
" + mesh ["
<<
std
::
endl
;
mesh
->
printself
(
stream
,
indent
+
2
);
stream
<<
space
<<
AKANTU_INDENT
<<
"]"
<<
std
::
endl
;
stream
<<
space
<<
" + connectivity type information ["
<<
std
::
endl
;
const
Mesh
::
ConnectivityTypeList
&
type_list
=
mesh
->
getConnectivityTypeList
();
Mesh
::
ConnectivityTypeList
::
const_iterator
it
;
for
(
it
=
type_list
.
begin
();
it
!=
type_list
.
end
();
++
it
)
{
if
(
mesh
->
getSpatialDimension
(
*
it
)
!=
element_dimension
)
continue
;
stream
<<
space
<<
AKANTU_INDENT
<<
AKANTU_INDENT
<<
" + "
<<
*
it
<<
" ["
<<
std
::
endl
;
// if(shapes[*it]) {
// shapes [*it]->printself(stream, indent + 3);
// shapes_derivatives[*it]->printself(stream, indent + 3);
// jacobians [*it]->printself(stream, indent + 3);
// }
stream
<<
space
<<
AKANTU_INDENT
<<
AKANTU_INDENT
<<
"]"
<<
std
::
endl
;
}
stream
<<
space
<<
AKANTU_INDENT
<<
"]"
<<
std
::
endl
;
stream
<<
space
<<
"]"
<<
std
::
endl
;
}
__END_AKANTU__
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