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rAKA/src/mesh/element_group.cc
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element_group.cc
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/**
* Copyright (©) 2013-2023 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 "element_group.hh"
#include "aka_csr.hh"
#include "dumpable.hh"
#include "group_manager.hh"
#include "group_manager_inline_impl.hh"
#include "mesh.hh"
#include "mesh_accessor.hh"
#include "mesh_utils.hh"
#if defined(AKANTU_COHESIVE_ELEMENT)
#include "cohesive_element_inserter.hh"
#endif
#include <algorithm>
#include <iterator>
#include <sstream>
/* -------------------------------------------------------------------------- */
#include "dumper_iohelper_paraview.hh"
namespace akantu {
/* -------------------------------------------------------------------------- */
ElementGroup::ElementGroup(const std::string & group_name, const Mesh & mesh,
NodeGroup & node_group, Int dimension,
const std::string & id)
: mesh(mesh), name(group_name), elements("elements", id),
node_group(node_group), dimension(dimension) {
AKANTU_DEBUG_IN();
this->registerDumper<DumperParaview>("paraview_" + group_name, group_name,
true);
this->addDumpFilteredMesh(mesh, elements, node_group.getNodes(),
_all_dimensions);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void ElementGroup::clear() { elements.free(); }
/* -------------------------------------------------------------------------- */
void ElementGroup::clear(ElementType type, GhostType ghost_type) {
if (elements.exists(type, ghost_type)) {
elements(type, ghost_type).clear();
}
}
/* -------------------------------------------------------------------------- */
bool ElementGroup::empty() const { return elements.empty(); }
/* -------------------------------------------------------------------------- */
void ElementGroup::append(const ElementGroup & other_group) {
AKANTU_DEBUG_IN();
node_group.append(other_group.node_group);
/// loop on all element types in all dimensions
for (auto ghost_type : ghost_types) {
for (auto type : other_group.elementTypes(_ghost_type = ghost_type,
_element_kind = _ek_not_defined)) {
const auto & other_elem_list = other_group.elements(type, ghost_type);
auto nb_other_elem = other_elem_list.size();
if (not elements.exists(type, ghost_type)) {
elements.alloc(0, 1, type, ghost_type);
}
auto & elem_list = elements(type, ghost_type);
auto nb_elem = elem_list.size();
/// append new elements to current list
elem_list.resize(nb_elem + nb_other_elem);
std::copy(other_elem_list.begin(), other_elem_list.end(),
elem_list.begin() + nb_elem);
}
}
this->optimize();
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
void ElementGroup::printself(std::ostream & stream, int indent) const {
std::string space;
for (Int i = 0; i < indent; i++, space += AKANTU_INDENT) {
;
}
stream << space << "ElementGroup ["
<< "\n";
stream << space << " + name: " << name << "\n";
stream << space << " + dimension: " << dimension << "\n";
elements.printself(stream, indent + 1);
node_group.printself(stream, indent + 1);
stream << space << "]"
<< "\n";
}
/* -------------------------------------------------------------------------- */
void ElementGroup::optimize() {
// increasing the locality of data when iterating on the element of a group
for (auto ghost_type : ghost_types) {
for (auto type : elements.elementTypes(_ghost_type = ghost_type)) {
auto & els = elements(type, ghost_type);
std::sort(els.begin(), els.end());
auto end = std::unique(els.begin(), els.end());
els.resize(end - els.begin());
}
}
node_group.optimize();
}
/* -------------------------------------------------------------------------- */
void ElementGroup::fillFromNodeGroup() {
CSR<Element> node_to_elem;
MeshUtils::buildNode2Elements(this->mesh, node_to_elem, this->dimension);
std::set<Element> seen;
for (const auto & node : this->node_group) {
for (const auto & element : node_to_elem.getRow(node)) {
if (this->dimension != _all_dimensions &&
this->dimension != Mesh::getSpatialDimension(element.type)) {
continue;
}
if (seen.find(element) != seen.end()) {
continue;
}
auto nb_nodes_per_element = Mesh::getNbNodesPerElement(element.type);
auto conn = mesh.getConnectivity(element);
Int count = 0;
for (auto n : conn) {
count += (this->node_group.getNodes().find(n) != Idx(-1) ? 1 : 0);
}
if (count == nb_nodes_per_element) {
this->add(element);
}
seen.insert(element);
}
}
this->optimize();
}
/* -------------------------------------------------------------------------- */
void ElementGroup::addDimension(Int dimension) {
this->dimension = std::max(dimension, this->dimension);
}
/* -------------------------------------------------------------------------- */
void ElementGroup::onNodesAdded(const Array<Idx> & /*new_nodes*/,
const NewNodesEvent & event [[gnu::unused]]) {
#if defined(AKANTU_COHESIVE_ELEMENT)
if (aka::is_of_type<CohesiveNewNodesEvent>(event)) {
// nodes might have changed in the connectivity
node_group.clear();
for (auto ghost_type : ghost_types) {
for (auto type : elements.elementTypes(_ghost_type = ghost_type)) {
auto & els = elements(type, ghost_type);
auto nb_nodes_per_element = Mesh::getNbNodesPerElement(type);
auto && conn_it = make_view(mesh.getConnectivity(type, ghost_type),
nb_nodes_per_element)
.begin();
for (auto element : els) {
auto && conn = conn_it[element];
for (auto && n : conn) {
node_group.add(n, false);
}
}
}
}
node_group.optimize();
}
#endif
}
/* -------------------------------------------------------------------------- */
} // namespace akantu
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