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py_fe_engine.cc
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/**
* Copyright (©) 2019-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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_aka_common.hh"
/* -------------------------------------------------------------------------- */
#include <element.hh>
#include <fe_engine.hh>
#include <integration_point.hh>
/* -------------------------------------------------------------------------- */
#include <pybind11/functional.h>
#include <pybind11/pybind11.h>
#include <pybind11/stl.h>
/* -------------------------------------------------------------------------- */
#include <memory>
/* -------------------------------------------------------------------------- */
namespace py = pybind11;
/* -------------------------------------------------------------------------- */
namespace akantu {
void register_fe_engine(py::module & mod) {
py::class_<Element>(mod, "Element")
.def(py::init([](ElementType type, Int id, GhostType ghost_type) {
return std::make_unique<Element>(Element{type, id, ghost_type});
}),
py::arg("type"), py::arg("ghost_type"),
py::arg("ghost_type") = _not_ghost)
.def("__lt__",
[](Element & self, const Element & other) { return (self < other); })
.def("__repr__", [](Element & self) { return std::to_string(self); });
mod.attr("ElementNull") = ElementNull;
py::class_<FEEngine>(mod, "FEEngine")
.def(
"getNbIntegrationPoints",
[](FEEngine & fem, ElementType type, GhostType ghost_type) {
return fem.getNbIntegrationPoints(type, ghost_type);
},
py::arg("type"), py::arg("ghost_type") = _not_ghost)
.def("initShapeFunctions", &FEEngine::initShapeFunctions,
py::arg("ghost_type") = _not_ghost)
.def(
"integrate",
[](FEEngine & self, const Array<Real> & f, Array<Real> & intf,
Int nb_degree_of_freedom, ElementType type,
GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.integrate(f, intf, nb_degree_of_freedom, type, ghost_type,
empty_filter);
} else {
self.integrate(f, intf, nb_degree_of_freedom, type, ghost_type,
filter_elements);
}
},
py::arg("f"), py::arg("intf"), py::arg("nb_degree_of_freedom"),
py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"integrate",
[](FEEngine & self, const Array<Real> & f, ElementType type,
GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) -> Real {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
return self.integrate(f, type, ghost_type, empty_filter);
} else {
return self.integrate(f, type, ghost_type, filter_elements);
}
},
py::arg("f"), py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"gradientOnIntegrationPoints",
[](FEEngine & fem, const Array<Real> & u, Array<Real> & nablauq,
const Int nb_degree_of_freedom, ElementType type,
GhostType ghost_type, const Array<Idx> & filter_elements) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
fem.gradientOnIntegrationPoints(u, nablauq, nb_degree_of_freedom,
type, ghost_type, empty_filter);
} else {
fem.gradientOnIntegrationPoints(u, nablauq, nb_degree_of_freedom,
type, ghost_type,
filter_elements);
}
},
py::arg("u"), py::arg("nablauq"), py::arg("nb_degree_of_freedom"),
py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"interpolateOnIntegrationPoints",
[](FEEngine & self, const Array<Real> & u, Array<Real> & uq,
Int nb_degree_of_freedom, ElementType type, GhostType ghost_type,
const Array<Idx> & filter_elements) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.interpolateOnIntegrationPoints(
u, uq, nb_degree_of_freedom, type, ghost_type, empty_filter);
} else {
self.interpolateOnIntegrationPoints(u, uq, nb_degree_of_freedom,
type, ghost_type,
filter_elements);
}
},
py::arg("u"), py::arg("uq"), py::arg("nb_degree_of_freedom"),
py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"interpolateOnIntegrationPoints",
[](FEEngine & self, const Array<Real> & u,
std::shared_ptr<ElementTypeMapArray<Real>> uq,
std::shared_ptr<const ElementTypeMapArray<Idx>> filter_elements) {
self.interpolateOnIntegrationPoints(u, *uq, filter_elements.get());
},
py::arg("u"), py::arg("uq"), py::arg("filter_elements") = nullptr)
.def(
"computeBtD",
[](FEEngine & self, const Array<Real> & Ds, Array<Real> & BtDs,
ElementType type, GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.computeBtD(Ds, BtDs, type, ghost_type, empty_filter);
} else {
self.computeBtD(Ds, BtDs, type, ghost_type, filter_elements);
}
},
py::arg("Ds"), py::arg("BtDs"), py::arg("type"),
py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"computeBtDB",
[](FEEngine & self, const Array<Real> & Ds, Array<Real> & BtDBs,
Int order_d, ElementType type, GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.computeBtDB(Ds, BtDBs, order_d, type, ghost_type,
empty_filter);
} else {
self.computeBtDB(Ds, BtDBs, order_d, type, ghost_type,
filter_elements);
}
},
py::arg("Ds"), py::arg("BtDBs"), py::arg("order_d"), py::arg("type"),
py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"computeNtb",
[](FEEngine & self, const Array<Real> & bs, Array<Real> & Ntbs,
ElementType type, GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.computeNtb(bs, Ntbs, type, ghost_type, empty_filter);
} else {
self.computeNtb(bs, Ntbs, type, ghost_type, filter_elements);
}
},
py::arg("bs"), py::arg("Ntbs"), py::arg("type"),
py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"computeNtbN",
[](FEEngine & self, const Array<Real> & bs, Array<Real> & NtbNs,
ElementType type, GhostType ghost_type = _not_ghost,
const Array<Idx> & filter_elements = empty_filter) {
// Check to overcome the empty_filter that is maped as a numpy array
// without an id
if (filter_elements.data() == empty_filter.data()) {
self.computeNtbN(bs, NtbNs, type, ghost_type, empty_filter);
} else {
self.computeNtbN(bs, NtbNs, type, ghost_type, filter_elements);
}
},
py::arg("bs"), py::arg("NtbNs"), py::arg("type"),
py::arg("ghost_type") = _not_ghost,
py::arg("filter_elements") = empty_filter)
.def(
"computeIntegrationPointsCoordinates",
[](FEEngine & self,
std::shared_ptr<ElementTypeMapArray<Real>> coordinates,
std::shared_ptr<const ElementTypeMapArray<Idx>> filter_elements)
-> decltype(auto) {
return self.computeIntegrationPointsCoordinates(
*coordinates, filter_elements.get());
},
py::arg("coordinates"), py::arg("filter_elements") = nullptr)
.def(
"assembleFieldLumped",
[](FEEngine & fem,
const std::function<void(Matrix<Real> &, const Element &)> &
field_funct,
const ID & matrix_id, const ID & dof_id, DOFManager & dof_manager,
ElementType type, GhostType ghost_type) {
fem.assembleFieldLumped(field_funct, matrix_id, dof_id, dof_manager,
type, ghost_type);
},
py::arg("field_funct"), py::arg("matrix_id"), py::arg("dof_id"),
py::arg("dof_manager"), py::arg("type"),
py::arg("ghost_type") = _not_ghost)
.def(
"assembleFieldMatrix",
[](FEEngine & fem,
const std::function<void(Matrix<Real> &, const Element &)> &
field_funct,
const ID & matrix_id, const ID & dof_id, DOFManager & dof_manager,
ElementType type, GhostType ghost_type = _not_ghost) {
fem.assembleFieldMatrix(field_funct, matrix_id, dof_id, dof_manager,
type, ghost_type);
},
py::arg("field_funct"), py::arg("matrix_id"), py::arg("dof_id"),
py::arg("dof_manager"), py::arg("type"),
py::arg("ghost_type") = _not_ghost)
.def("getElementInradius",
[](FEEngine & self, const Element & element) {
return self.getElementInradius(element);
})
.def("getNormalsOnIntegrationPoints",
&FEEngine::getNormalsOnIntegrationPoints, py::arg("type"),
py::arg("ghost_type") = _not_ghost,
py::return_value_policy::reference)
.def("getShapes", &FEEngine::getShapes, py::arg("type"),
py::arg("ghost_type") = _not_ghost, py::arg("id") = 0,
py::return_value_policy::reference)
.def("getShapesDerivatives", &FEEngine::getShapesDerivatives,
py::arg("type"), py::arg("ghost_type") = _not_ghost,
py::arg("id") = 0, py::return_value_policy::reference);
py::class_<IntegrationPoint>(mod, "IntegrationPoint");
}
} // namespace akantu

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