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/**
* @file py_material.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Mohit Pundir <mohit.pundir@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Thu Jun 20 2019
* @date last modification: Fri Apr 09 2021
*
* @brief pybind11 interface to Material
*
*
* @section LICENSE
*
* Copyright (©) 2018-2021 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 "py_aka_array.hh"
#include "py_akantu_pybind11_compatibility.hh"
/* -------------------------------------------------------------------------- */
#include <material_selector.hh>
#include <solid_mechanics_model.hh>
#if defined(AKANTU_COHESIVE_ELEMENT)
#include <solid_mechanics_model_cohesive.hh>
#endif
#include <material_elastic.hh>
/* -------------------------------------------------------------------------- */
#include <pybind11/operators.h>
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
/* -------------------------------------------------------------------------- */
namespace py = pybind11;
/* -------------------------------------------------------------------------- */
namespace akantu {
namespace {
template <typename _Material> class PyMaterial : public _Material {
public:
/* Inherit the constructors */
using _Material::_Material;
~PyMaterial() override = default;
void initMaterial() override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE(void, _Material, initMaterial, );
};
void computeStress(ElementType el_type,
GhostType ghost_type = _not_ghost) override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE_PURE(void, _Material, computeStress, el_type,
ghost_type);
}
void computeTangentModuli(ElementType el_type, Array<Real> & tangent_matrix,
GhostType ghost_type = _not_ghost) override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE(void, _Material, computeTangentModuli, el_type,
tangent_matrix, ghost_type);
}
void computePotentialEnergy(ElementType el_type) override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE(void, _Material, computePotentialEnergy, el_type);
}
Real getPushWaveSpeed(const Element & element) const override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE(Real, _Material, getPushWaveSpeed, element);
}
Real getShearWaveSpeed(const Element & element) const override {
// NOLINTNEXTLINE
PYBIND11_OVERRIDE(Real, _Material, getShearWaveSpeed, element);
}
template <typename T>
void registerInternal(const std::string & name, UInt nb_component) {
auto && internal = std::make_shared<InternalField<T>>(name, *this);
AKANTU_DEBUG_INFO("alloc internal " << name << " "
<< &this->internals[name]);
internal->initialize(nb_component);
this->internals[name] = internal;
}
protected:
std::map<std::string, std::shared_ptr<ElementTypeMapBase>> internals;
};
/* ------------------------------------------------------------------------ */
template <typename T>
void register_internal_field(py::module & mod, const std::string & name) {
py::class_<InternalField<T>, ElementTypeMapArray<T>,
std::shared_ptr<InternalField<T>>>(
mod, ("InternalField" + name).c_str());
}
/* ------------------------------------------------------------------------ */
template <typename _Material>
void register_material_classes(py::module & mod, const std::string & name) {
py::class_<_Material, Material, Parsable, PyMaterial<_Material>>(
mod, name.c_str(), py::multiple_inheritance())
.def(py::init<SolidMechanicsModel &, const ID &>());
}
} // namespace
/* -------------------------------------------------------------------------- */
void register_material(py::module & mod) {
py::class_<MaterialFactory>(mod, "MaterialFactory")
.def_static(
"getInstance",
[]() -> MaterialFactory & { return Material::getFactory(); },
py::return_value_policy::reference)
.def("registerAllocator",
[](MaterialFactory & self, const std::string id, py::function func) {
self.registerAllocator(
id,
[func, id](UInt dim, const ID & /*unused*/,
SolidMechanicsModel & model,
const ID & option) -> std::unique_ptr<Material> {
py::object obj = func(dim, id, model, option);
auto & ptr = py::cast<Material &>(obj);
obj.release();
return std::unique_ptr<Material>(&ptr);
});
})
.def("getPossibleAllocators", &MaterialFactory::getPossibleAllocators);
register_internal_field<Real>(mod, "Real");
register_internal_field<UInt>(mod, "UInt");
py::class_<Material, Parsable, PyMaterial<Material>>(
mod, "Material", py::multiple_inheritance())
.def(py::init<SolidMechanicsModel &, const ID &>())
.def(
"getGradU",
[](Material & self, ElementType el_type,
GhostType ghost_type = _not_ghost) -> decltype(auto) {
return self.getGradU(el_type, ghost_type);
},
py::arg("el_type"), py::arg("ghost_type") = _not_ghost,
py::return_value_policy::reference)
.def(
"getStress",
[](Material & self, ElementType el_type,
GhostType ghost_type = _not_ghost) -> decltype(auto) {
return self.getStress(el_type, ghost_type);
},
py::arg("el_type"), py::arg("ghost_type") = _not_ghost,
py::return_value_policy::reference)
.def(
"getPotentialEnergy",
[](Material & self, ElementType el_type) -> decltype(auto) {
return self.getPotentialEnergy(el_type);
},
py::arg("el_type"), py::return_value_policy::reference)
.def(
"getPotentialEnergy",
[](Material & self, ElementType el_type, UInt index) -> Real {
return self.getPotentialEnergy(el_type, index);
},
py::arg("el_type"), py::arg("index"))
.def("getPotentialEnergy",
[](Material & self) -> Real { return self.getPotentialEnergy(); })
.def("initMaterial", &Material::initMaterial)
.def("getModel", &Material::getModel)
.def("registerInternalReal",
[](Material & self, const std::string & name, UInt nb_component) {
return dynamic_cast<PyMaterial<Material> &>(self)
.registerInternal<Real>(name, nb_component);
})
.def("registerInternalUInt",
[](Material & self, const std::string & name, UInt nb_component) {
return dynamic_cast<PyMaterial<Material> &>(self)
.registerInternal<UInt>(name, nb_component);
})
.def(
"getInternalReal",
[](Material & self, const ID & id) -> decltype(auto) {
return self.getInternal<Real>(id);
},
py::arg("id"), py::return_value_policy::reference)
.def(
"getInternalUInt",
[](Material & self, const ID & id) -> decltype(auto) {
return self.getInternal<UInt>(id);
},
py::arg("id"), py::return_value_policy::reference)
.def(
"getElementFilter",
[](Material & self) -> decltype(auto) {
return self.getElementFilter();
},
py::return_value_policy::reference)
/*
* These functions override the `Parsable` interface.
* This ensure that the `updateInternalParameters()` function is called.
*/
.def(
"setReal",
[](Material & self, const ID & name, const Real value) -> void {
self.setParam(name, value);
return;
},
py::arg("name"), py::arg("value"))
.def(
"setBool",
[](Material & self, const ID & name, const bool value) -> void {
self.setParam(name, value);
return;
},
py::arg("name"), py::arg("value"))
.def(
"setString",
[](Material & self, const ID & name,
const std::string & value) -> void {
self.setParam(name, value);
return;
},
py::arg("name"), py::arg("value"))
.def(
"setInt",
[](Material & self, const ID & name, const int value) -> void {
self.setParam(name, value);
return;
},
py::arg("name"), py::arg("value"))
.def("getPushWaveSpeed", &Material::getPushWaveSpeed)
.def("getShearWaveSpeed", &Material::getShearWaveSpeed)
.def("__repr__", [](Material & self) {
std::stringstream sstr;
sstr << self;
return sstr.str();
});
register_material_classes<MaterialElastic<2>>(mod, "MaterialElastic2D");
register_material_classes<MaterialElastic<3>>(mod, "MaterialElastic3D");
}
} // namespace akantu
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