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rAKA/src/mesh_utils/cohesive_element_inserter.cc
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cohesive_element_inserter.cc
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/**
* @file cohesive_element_inserter.cc
*
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Wed Dec 04 2013
* @date last modification: Sun Oct 04 2015
*
* @brief Cohesive element inserter functions
*
* @section LICENSE
*
* Copyright (©) 2014, 2015 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 "cohesive_element_inserter.hh"
#include "communicator.hh"
#include "element_group.hh"
#include "global_ids_updater.hh"
#include "mesh_iterators.hh"
/* -------------------------------------------------------------------------- */
#include <algorithm>
#include <limits>
/* -------------------------------------------------------------------------- */
namespace akantu {
CohesiveElementInserter::CohesiveElementInserter(Mesh & mesh, bool is_extrinsic,
const ID & id)
: Parsable(ParserType::_cohesive_inserter), id(id), mesh(mesh),
mesh_facets(mesh.initMeshFacets()),
insertion_facets("insertion_facets", id),
insertion_limits(mesh.getSpatialDimension(), 2),
check_facets("check_facets", id) {
this->registerParam("groups", physical_groups, _pat_parsable,
"List of groups to consider for insertion");
this->registerParam("bounding_box", insertion_limits, _pat_parsable,
"Global limit for insertion");
init(is_extrinsic);
}
/* -------------------------------------------------------------------------- */
CohesiveElementInserter::~CohesiveElementInserter() = default;
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::init(bool is_extrinsic) {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
MeshUtils::resetFacetToDouble(mesh_facets);
/// initialize facet insertion array
insertion_facets.initialize(mesh_facets,
_spatial_dimension = (spatial_dimension - 1),
_with_nb_element = true);
/// init insertion limits
for (UInt dim = 0; dim < spatial_dimension; ++dim) {
insertion_limits(dim, 0) = std::numeric_limits<Real>::max() * (-1.);
insertion_limits(dim, 1) = std::numeric_limits<Real>::max();
}
if (is_extrinsic) {
initFacetsCheck();
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::initFacetsCheck() {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
check_facets.initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_default_value = true);
for_each_elements(
mesh_facets,
[&](auto && facet) {
const auto & element_to_facet = mesh_facets.getElementToSubelement(
facet.type, facet.ghost_type)(facet.element);
auto & left = element_to_facet[0];
auto & right = element_to_facet[1];
if (right == ElementNull ||
(left.ghost_type == _ghost && right.ghost_type == _ghost)) {
check_facets(facet) = false;
}
},
_spatial_dimension = spatial_dimension - 1);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::limitCheckFacets() {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
Vector<Real> bary_facet(spatial_dimension);
for_each_elements(mesh_facets,
[&](auto && facet) {
auto & need_check = check_facets(facet);
if (not need_check)
return;
mesh_facets.getBarycenter(facet, bary_facet);
UInt coord_in_limit = 0;
while (coord_in_limit < spatial_dimension &&
bary_facet(coord_in_limit) >
insertion_limits(coord_in_limit, 0) &&
bary_facet(coord_in_limit) <
insertion_limits(coord_in_limit, 1))
++coord_in_limit;
if (coord_in_limit != spatial_dimension)
need_check = false;
},
_spatial_dimension = spatial_dimension - 1);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::setLimit(SpacialDirection axis, Real first_limit,
Real second_limit) {
AKANTU_DEBUG_ASSERT(
axis < mesh.getSpatialDimension(),
"You are trying to limit insertion in a direction that doesn't exist");
insertion_limits(axis, 0) = std::min(first_limit, second_limit);
insertion_limits(axis, 1) = std::max(first_limit, second_limit);
}
/* -------------------------------------------------------------------------- */
UInt CohesiveElementInserter::insertIntrinsicElements() {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
Vector<Real> bary_facet(spatial_dimension);
for_each_elements(
mesh_facets,
[&](auto && facet) {
const auto & element_to_facet = mesh_facets.getElementToSubelement(
facet.type, facet.ghost_type)(facet.element);
if (element_to_facet[1] == ElementNull)
return;
mesh_facets.getBarycenter(facet, bary_facet);
UInt coord_in_limit = 0;
while (coord_in_limit < spatial_dimension &&
bary_facet(coord_in_limit) >
insertion_limits(coord_in_limit, 0) &&
bary_facet(coord_in_limit) < insertion_limits(coord_in_limit, 1))
++coord_in_limit;
if (coord_in_limit == spatial_dimension)
insertion_facets(facet) = true;
},
_spatial_dimension = spatial_dimension - 1);
AKANTU_DEBUG_OUT();
return insertElements();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::insertIntrinsicElements(
const std::string & physname, UInt material_index) {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
ElementTypeMapArray<UInt> * phys_data;
try {
phys_data = &(mesh_facets.getData<UInt>("physical_names"));
} catch (...) {
phys_data = &(mesh_facets.registerData<UInt>("physical_names"));
phys_data->initialize(mesh_facets,
_spatial_dimension = spatial_dimension - 1,
_with_nb_element = true);
// mesh_facets.initElementTypeMapArray(*phys_data, 1, spatial_dimension -
// 1,
// false, _ek_regular, true);
}
Vector<Real> bary_facet(spatial_dimension);
mesh_facets.createElementGroup(physname);
GhostType ghost_type = _not_ghost;
for (auto && type_facet :
mesh_facets.elementTypes(spatial_dimension - 1, ghost_type)) {
auto & f_insertion = insertion_facets(type_facet, ghost_type);
auto & element_to_facet =
mesh_facets.getElementToSubelement(type_facet, ghost_type);
UInt nb_facet = mesh_facets.getNbElement(type_facet, ghost_type);
UInt coord_in_limit = 0;
auto & group = mesh.getElementGroup(physname);
auto & group_facet = mesh_facets.getElementGroup(physname);
Vector<Real> bary_physgroup(spatial_dimension);
Real norm_bary;
for (auto && e : group.getElements(type_facet, ghost_type)) {
mesh.getBarycenter(Element{type_facet, e, ghost_type}, bary_physgroup);
#ifndef AKANTU_NDEBUG
bool find_a_partner = false;
#endif
norm_bary = bary_physgroup.norm();
Array<UInt> & material_id = (*phys_data)(type_facet, ghost_type);
for (UInt f = 0; f < nb_facet; ++f) {
if (element_to_facet(f)[1] == ElementNull)
continue;
mesh_facets.getBarycenter(Element{type_facet, f, ghost_type},
bary_facet);
coord_in_limit = 0;
while (coord_in_limit < spatial_dimension &&
(std::abs(bary_facet(coord_in_limit) -
bary_physgroup(coord_in_limit)) /
norm_bary <
Math::getTolerance()))
++coord_in_limit;
if (coord_in_limit == spatial_dimension) {
f_insertion(f) = true;
#ifndef AKANTU_NDEBUG
find_a_partner = true;
#endif
group_facet.add(type_facet, f, ghost_type, false);
material_id(f) = material_index;
break;
}
}
AKANTU_DEBUG_ASSERT(find_a_partner,
"The element nO "
<< e << " of physical group " << physname
<< " did not find its associated facet!"
<< " Try to decrease math tolerance. "
<< std::endl);
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
UInt CohesiveElementInserter::insertElements(bool only_double_facets) {
CohesiveNewNodesEvent node_event;
NewElementsEvent element_event;
Array<UInt> new_pairs(0, 2);
UInt nb_new_elements = MeshUtils::insertCohesiveElements(
mesh, mesh_facets, insertion_facets, new_pairs, element_event.getList(),
only_double_facets);
UInt nb_new_nodes = new_pairs.size();
node_event.getList().reserve(nb_new_nodes);
node_event.getOldNodesList().reserve(nb_new_nodes);
for (UInt n = 0; n < nb_new_nodes; ++n) {
node_event.getList().push_back(new_pairs(n, 1));
node_event.getOldNodesList().push_back(new_pairs(n, 0));
}
if (mesh.isDistributed()) {
/// update nodes type
updateNodesType(mesh, node_event);
updateNodesType(mesh_facets, node_event);
/// update global ids
nb_new_nodes = this->updateGlobalIDs(node_event);
/// compute total number of new elements
const auto & comm = mesh.getCommunicator();
comm.allReduce(nb_new_elements, SynchronizerOperation::_sum);
}
if (nb_new_nodes > 0)
mesh.sendEvent(node_event);
if (nb_new_elements > 0) {
updateInsertionFacets();
// mesh.updateTypesOffsets(_not_ghost);
mesh.sendEvent(element_event);
MeshUtils::resetFacetToDouble(mesh_facets);
}
if (mesh.isDistributed()) {
/// update global ids
this->synchronizeGlobalIDs(node_event);
}
return nb_new_elements;
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::updateInsertionFacets() {
AKANTU_DEBUG_IN();
UInt spatial_dimension = mesh.getSpatialDimension();
for (ghost_type_t::iterator gt = ghost_type_t::begin();
gt != ghost_type_t::end(); ++gt) {
GhostType facet_gt = *gt;
Mesh::type_iterator it =
mesh_facets.firstType(spatial_dimension - 1, facet_gt);
Mesh::type_iterator last =
mesh_facets.lastType(spatial_dimension - 1, facet_gt);
for (; it != last; ++it) {
ElementType facet_type = *it;
Array<bool> & ins_facets = insertion_facets(facet_type, facet_gt);
// this is the extrinsic case
if (check_facets.exists(facet_type, facet_gt)) {
Array<bool> & f_check = check_facets(facet_type, facet_gt);
UInt nb_facets = f_check.size();
for (UInt f = 0; f < ins_facets.size(); ++f) {
if (ins_facets(f)) {
++nb_facets;
ins_facets(f) = false;
f_check(f) = false;
}
}
f_check.resize(nb_facets);
} else { // and this the intrinsic one
ins_facets.resize(mesh_facets.getNbElement(facet_type, facet_gt));
ins_facets.set(false);
}
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void CohesiveElementInserter::printself(std::ostream & stream,
int indent) const {
std::string space;
for (Int i = 0; i < indent; i++, space += AKANTU_INDENT)
;
stream << space << "CohesiveElementInserter [" << std::endl;
stream << space << " + mesh [" << std::endl;
mesh.printself(stream, indent + 2);
stream << space << AKANTU_INDENT << "]" << std::endl;
stream << space << " + mesh_facets [" << std::endl;
mesh_facets.printself(stream, indent + 2);
stream << space << AKANTU_INDENT << "]" << std::endl;
stream << space << "]" << std::endl;
}
} // namespace akantu
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