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rAKA/src/mesh/element_group.cc
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element_group.cc
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/**
* @file element_group.cc
*
* @author Dana Christen <dana.christen@gmail.com>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Wed Nov 13 2013
* @date last modification: Wed Dec 09 2020
*
* @brief Stores information relevent to the notion of domain boundary and
* surfaces.
*
*
* @section LICENSE
*
* Copyright (©) 2014-2021 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 "aka_csr.hh"
#include "dumpable.hh"
#include "dumpable_inline_impl.hh"
#include "group_manager.hh"
#include "group_manager_inline_impl.hh"
#include "mesh.hh"
#include "mesh_utils.hh"
#include <algorithm>
#include <iterator>
#include <sstream>
#include "element_group.hh"
#if defined(AKANTU_USE_IOHELPER)
#include "dumper_iohelper_paraview.hh"
#endif
namespace akantu {
/* -------------------------------------------------------------------------- */
ElementGroup::ElementGroup(const std::string & group_name, const Mesh & mesh,
NodeGroup & node_group, UInt dimension,
const std::string & id)
: mesh(mesh), name(group_name), elements("elements", id),
node_group(node_group), dimension(dimension) {
AKANTU_DEBUG_IN();
#if defined(AKANTU_USE_IOHELPER)
this->registerDumper<DumperParaview>("paraview_" + group_name, group_name,
true);
this->addDumpFilteredMesh(mesh, elements, node_group.getNodes(),
_all_dimensions);
#endif
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
ElementGroup::ElementGroup(const ElementGroup & /*other*/) = default;
/* -------------------------------------------------------------------------- */
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 Array<UInt> & other_elem_list =
other_group.elements(type, ghost_type);
UInt nb_other_elem = other_elem_list.size();
Array<UInt> * elem_list;
UInt nb_elem = 0;
/// create current type if doesn't exists, otherwise get information
if (elements.exists(type, ghost_type)) {
elem_list = &elements(type, ghost_type);
nb_elem = elem_list->size();
} else {
elem_list = &(elements.alloc(0, 1, type, ghost_type));
}
/// 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);
/// remove duplicates
std::sort(elem_list->begin(), elem_list->end());
Array<UInt>::iterator<> end =
std::unique(elem_list->begin(), elem_list->end());
elem_list->resize(end - elem_list->begin());
}
}
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 [" << std::endl;
stream << space << " + name: " << name << std::endl;
stream << space << " + dimension: " << dimension << std::endl;
elements.printself(stream, indent + 1);
node_group.printself(stream, indent + 1);
stream << space << "]" << std::endl;
}
/* -------------------------------------------------------------------------- */
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)) {
Array<UInt> & els = elements(type, ghost_type);
std::sort(els.begin(), els.end());
Array<UInt>::iterator<> 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;
Array<UInt>::const_iterator<> itn = this->node_group.begin();
Array<UInt>::const_iterator<> endn = this->node_group.end();
for (; itn != endn; ++itn) {
CSR<Element>::iterator ite = node_to_elem.begin(*itn);
CSR<Element>::iterator ende = node_to_elem.end(*itn);
for (; ite != ende; ++ite) {
const Element & elem = *ite;
if (this->dimension != _all_dimensions &&
this->dimension != Mesh::getSpatialDimension(elem.type)) {
continue;
}
if (seen.find(elem) != seen.end()) {
continue;
}
UInt nb_nodes_per_element = Mesh::getNbNodesPerElement(elem.type);
Array<UInt>::const_iterator<Vector<UInt>> conn_it =
this->mesh.getConnectivity(elem.type, elem.ghost_type)
.begin(nb_nodes_per_element);
const Vector<UInt> & conn = conn_it[elem.element];
UInt count = 0;
for (UInt n = 0; n < conn.size(); ++n) {
count +=
(this->node_group.getNodes().find(conn(n)) != UInt(-1) ? 1 : 0);
}
if (count == nb_nodes_per_element) {
this->add(elem);
}
seen.insert(elem);
}
}
this->optimize();
}
/* -------------------------------------------------------------------------- */
void ElementGroup::addDimension(UInt dimension) {
this->dimension = std::max(dimension, this->dimension);
}
/* -------------------------------------------------------------------------- */
} // namespace akantu
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