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bind_py_material.cc
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rMUSPECTRE µSpectre
bind_py_material.cc
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/**
* @file bind_py_material.cc
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 09 Jan 2018
*
* @brief python bindings for µSpectre's materials
*
* Copyright © 2018 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "common/common.hh"
#include "materials/material_linear_elastic1.hh"
#include "materials/material_linear_elastic2.hh"
#include "materials/material_linear_elastic3.hh"
#include "system/system_base.hh"
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
#include <pybind11/eigen.h>
#include <sstream>
#include <string>
using
namespace
muSpectre
;
namespace
py
=
pybind11
;
using
namespace
pybind11
::
literals
;
/**
* python binding for the optionally objective form of Hooke's law
*/
template
<
Dim_t
dim
>
void
add_material_linear_elastic1_helper
(
py
::
module
&
mod
)
{
std
::
stringstream
name_stream
{};
name_stream
<<
"MaterialLinearElastic1_"
<<
dim
<<
'd'
;
const
auto
name
{
name_stream
.
str
()};
using
Mat_t
=
MaterialLinearElastic1
<
dim
,
dim
>
;
using
Sys_t
=
SystemBase
<
dim
,
dim
>
;
py
::
class_
<
Mat_t
>
(
mod
,
name
.
c_str
())
.
def_static
(
"make"
,
[](
Sys_t
&
sys
,
std
::
string
n
,
Real
e
,
Real
p
)
->
Mat_t
&
{
return
Mat_t
::
make
(
sys
,
n
,
e
,
p
);
},
"system"
_a
,
"name"
_a
,
"Young"
_a
,
"Poisson"
_a
,
py
::
return_value_policy
::
reference
,
py
::
keep_alive
<
1
,
0
>
())
.
def
(
"add_pixel"
,
[]
(
Mat_t
&
mat
,
Ccoord_t
<
dim
>
pix
)
{
mat
.
add_pixel
(
pix
);},
"pixel"
_a
)
.
def
(
"size"
,
&
Mat_t
::
size
);
}
template
<
Dim_t
dim
>
void
add_material_linear_elastic2_helper
(
py
::
module
&
mod
)
{
std
::
stringstream
name_stream
{};
name_stream
<<
"MaterialLinearElastic2_"
<<
dim
<<
'd'
;
const
auto
name
{
name_stream
.
str
()};
using
Mat_t
=
MaterialLinearElastic2
<
dim
,
dim
>
;
using
Sys_t
=
SystemBase
<
dim
,
dim
>
;
py
::
class_
<
Mat_t
>
(
mod
,
name
.
c_str
())
.
def_static
(
"make"
,
[](
Sys_t
&
sys
,
std
::
string
n
,
Real
e
,
Real
p
)
->
Mat_t
&
{
return
Mat_t
::
make
(
sys
,
n
,
e
,
p
);
},
"system"
_a
,
"name"
_a
,
"Young"
_a
,
"Poisson"
_a
,
py
::
return_value_policy
::
reference
,
py
::
keep_alive
<
1
,
0
>
())
.
def
(
"add_pixel"
,
[]
(
Mat_t
&
mat
,
Ccoord_t
<
dim
>
pix
,
py
::
EigenDRef
<
Eigen
::
ArrayXXd
>&
eig
)
{
Eigen
::
Matrix
<
Real
,
dim
,
dim
>
eig_strain
{
eig
};
mat
.
add_pixel
(
pix
,
eig_strain
);},
"pixel"
_a
,
"eigenstrain"
_a
)
.
def
(
"size"
,
&
Mat_t
::
size
);
}
template
<
Dim_t
dim
>
void
add_material_linear_elastic3_helper
(
py
::
module
&
mod
)
{
std
::
stringstream
name_stream
{};
name_stream
<<
"MaterialLinearElastic3_"
<<
dim
<<
'd'
;
const
auto
name
{
name_stream
.
str
()};
using
Mat_t
=
MaterialLinearElastic3
<
dim
,
dim
>
;
using
Sys_t
=
SystemBase
<
dim
,
dim
>
;
py
::
class_
<
Mat_t
>
(
mod
,
name
.
c_str
())
.
def
(
py
::
init
<
std
::
string
>
(),
"name"
_a
)
.
def_static
(
"make"
,
[](
Sys_t
&
sys
,
std
::
string
n
)
->
Mat_t
&
{
return
Mat_t
::
make
(
sys
,
n
);
},
"system"
_a
,
"name"
_a
,
py
::
return_value_policy
::
reference
,
py
::
keep_alive
<
1
,
0
>
())
.
def
(
"add_pixel"
,
[]
(
Mat_t
&
mat
,
Ccoord_t
<
dim
>
pix
,
Real
Young
,
Real
Poisson
)
{
mat
.
add_pixel
(
pix
,
Young
,
Poisson
);},
"pixel"
_a
,
"Young"
_a
,
"Poisson"
_a
)
.
def
(
"size"
,
&
Mat_t
::
size
);
}
template
<
Dim_t
dim
>
void
add_material_helper
(
py
::
module
&
mod
)
{
add_material_linear_elastic1_helper
<
dim
>
(
mod
);
add_material_linear_elastic2_helper
<
dim
>
(
mod
);
add_material_linear_elastic3_helper
<
dim
>
(
mod
);
}
void
add_material
(
py
::
module
&
mod
)
{
auto
material
{
mod
.
def_submodule
(
"material"
)};
material
.
doc
()
=
"bindings for constitutive laws"
;
add_material_helper
<
twoD
>
(
material
);
add_material_helper
<
threeD
>
(
material
);
}
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