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mesh_geom_container.cc
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Tue, May 21, 16:06

mesh_geom_container.cc
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/**
* @file mesh_geom_container.cc
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @date creation: Fri Feb 27 2015
* @date last modification: Fri Mar 6 2015
*
* @brief Contains the CGAL representation of a mesh
*
* @section LICENSE
*
* Copyright (©) 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 "mesh_geom_container.hh"
#include "mesh_geom_factory.hh"
#include "mesh.hh"
#include <CGAL/Cartesian.h>
__BEGIN_AKANTU__
typedef CGAL::Cartesian<Real> K;
MeshGeomContainer::MeshGeomContainer(const Mesh & mesh):
MeshGeomAbstract(mesh),
factory_map(),
interface_mesh()
{}
MeshGeomContainer::~MeshGeomContainer() {
/*GeomMap::type_iterator it, end;
it = factory_map.firstType();
end = factory_map.lastType();
for (; it != end ; it++) {
MeshGeomAbstract * p = factory_map(*it);
delete p;
p = NULL;
}*/
delete interface_mesh;
}
void MeshGeomContainer::constructData() {
AKANTU_DEBUG_IN();
const UInt spatial_dim = mesh.getSpatialDimension();
Mesh::type_iterator it = mesh.firstType(spatial_dim, _not_ghost);
Mesh::type_iterator end = mesh.lastType(spatial_dim, _not_ghost);
/// Loop over the element types of the mesh and construct the primitive trees
for (; it != end ; ++it) {
switch(spatial_dim) {
case 1:
AKANTU_DEBUG_WARNING("Geometry in 1D is undefined");
break;
case 2:
switch(*it) {
case _triangle_3: {
MeshGeomFactory<2, _triangle_3> * factory = new MeshGeomFactory<2, _triangle_3>(mesh);
factory_map(factory, _triangle_3);
factory->constructData();
break;
}
/// Need to implement these cases when needed
case _not_defined:
case _point_1:
case _segment_2:
case _segment_3:
case _triangle_6: // 2nd order element : harder to implement (cf Gomes & Awruch 2001)
case _tetrahedron_4: // needs implementing
case _tetrahedron_10:
case _quadrangle_4: // may need implementing
case _quadrangle_8: // 2nd order element : harder to implement (cf Gomes & Awruch 2001)
case _hexahedron_8: // may need implementing
case _pentahedron_6:
case _max_element_type:
break;
}
break;
case 3:
break;
}
}
AKANTU_DEBUG_OUT();
}
UInt MeshGeomContainer::numberOfIntersectionsWithInterface(const K::Segment_3 & interface) const {
AKANTU_DEBUG_IN();
UInt total = 0;
GeomMap::type_iterator it = factory_map.firstType();
GeomMap::type_iterator end = factory_map.lastType();
for (; it != end ; ++it) {
total += factory_map(*it)->numberOfIntersectionsWithInterface(interface);
}
AKANTU_DEBUG_OUT();
return total;
}
Mesh * MeshGeomContainer::meshOfLinearInterface(const std::pair<K::Segment_3, std::string> & pair) {
AKANTU_DEBUG_IN();
std::list<Mesh *> meshes;
GeomMap::type_iterator it = factory_map.firstType();
GeomMap::type_iterator end = factory_map.lastType();
for (; it != end ; ++it) {
meshes.push_back(factory_map(*it)->meshOfLinearInterface(pair));
}
AKANTU_DEBUG_OUT();
if (meshes.size() == 1) {
return meshes.front();
} else {
return mergeMeshes(meshes);
}
}
Mesh * MeshGeomContainer::mergeMeshes(const std::list<Mesh *> & meshes) {
AKANTU_DEBUG_IN();
UInt d = mesh.getSpatialDimension();
// XXX there's gonna be a problem here with several element types in meshes (ID)
Mesh * mergedMesh = new Mesh(d, "mergedMesh");
Array<Real> mergedNodes(0, d, "mergedNodes");
ElementTypeMapArray<UInt> mergedConnectivities("mergedConnectivities");
ElementTypeMapArray<UInt> mergedAssociatedIds("mergedAssociatedIds");
ElementTypeMapArray<Element> mergedAssociatedTypes("mergedAssociatedTypes");
std::list<Mesh *>::const_iterator mesh_it = meshes.begin();
std::list<Mesh *>::const_iterator mesh_end = meshes.end();
for (; mesh_it != mesh_end ; ++mesh_it) {
const Mesh * currentMesh = *mesh_it;
Mesh::type_iterator type_it = currentMesh->firstType();
Mesh::type_iterator type_end = currentMesh->lastType();
for (; type_it != type_end ; ++type_it) {
mergedMesh->addConnectivityType(*type_it);
UInt nb_nodes_per_element = Mesh::getNbNodesPerElement(*type_it);
// XXX very repetitive code ahead, especially for associated data
if (!mergedConnectivities.exists(*type_it)) {
mergedConnectivities.alloc(0, nb_nodes_per_element, *type_it, _not_ghost);
}
const Array<UInt> & currentConnectivity = currentMesh->getConnectivity(*type_it);
Array<UInt>::const_vector_iterator currentConn_it = currentConnectivity.begin(nb_nodes_per_element);
Array<UInt>::const_vector_iterator currentConn_end = currentConnectivity.end(nb_nodes_per_element);
/// Offset for node id
Vector<UInt> offset(nb_nodes_per_element, mergedNodes.getSize());
/// Append connectivity
for (; currentConn_it != currentConn_end ; ++currentConn_it) {
mergedConnectivities(*type_it).push_back(*currentConn_it + offset);
}
// ------------------
if (!mergedAssociatedIds.exists(*type_it)) {
mergedAssociatedIds.alloc(0, 1, *type_it, _not_ghost);
}
const Array<UInt> & currentAssociatedIds = currentMesh->getData<UInt>("associated_id", *type_it);
Array<UInt>::const_scalar_iterator currentAssoId_it = currentAssociatedIds.begin();
Array<UInt>::const_scalar_iterator currentAssoId_end = currentAssociatedIds.end();
/// Append associated ids
for (; currentAssoId_it != currentAssoId_end ; ++currentAssoId_it) {
mergedAssociatedIds(*type_it).push_back(*currentAssoId_it);
}
// ------------------
if (!mergedAssociatedTypes.exists(*type_it)) {
mergedAssociatedTypes.alloc(0, 1, *type_it, _not_ghost);
}
const Array<Element> & currentAssociatedTypes = currentMesh->getData<Element>("associated_type", *type_it);
Array<Element>::const_scalar_iterator currentAssoType_it = currentAssociatedTypes.begin();
Array<Element>::const_scalar_iterator currentAssoType_end = currentAssociatedTypes.end();
/// Append associated types
for (; currentAssoType_it != currentAssoType_end ; ++currentAssoType_it) {
mergedAssociatedTypes(*type_it).push_back(*currentAssoType_it);
}
}
Array<Real>::const_vector_iterator currentNodes_it = currentMesh->getNodes().begin(d);
Array<Real>::const_vector_iterator currentNodes_end = currentMesh->getNodes().end(d);
/// Append nodes
for (; currentNodes_it != currentNodes_end ; ++currentNodes_it) {
mergedNodes.push_back(*currentNodes_it);
}
}
mergedMesh->getNodes().copy(mergedNodes);
ElementTypeMapArray<UInt>::type_iterator type_it = mergedConnectivities.firstType();
ElementTypeMapArray<UInt>::type_iterator type_end = mergedConnectivities.lastType();
for (; type_it != type_end ; ++type_it) {
mergedMesh->getConnectivity(*type_it).copy(mergedConnectivities(*type_it));
mergedMesh->registerData<UInt>("associated_id").alloc(0, 1, *type_it, _not_ghost);
mergedMesh->registerData<Element>("associated_type").alloc(0, 1, *type_it, _not_ghost);
mergedMesh->getData<UInt>("associated_id", *type_it).copy(mergedAssociatedIds(*type_it));
mergedMesh->getData<Element>("associated_type", *type_it).copy(mergedAssociatedTypes(*type_it));
}
AKANTU_DEBUG_OUT();
return mergedMesh;
}
Mesh & MeshGeomContainer::meshOfLinearInterfaces(const std::list<std::pair<K::Segment_3, std::string> > & interfaces) {
if (interfaces.size() == 1) {
interface_mesh = meshOfLinearInterface(interfaces.front());
return *interface_mesh;
}
std::list<std::pair<K::Segment_3, std::string> >::const_iterator interfaces_it = interfaces.begin();
std::list<std::pair<K::Segment_3, std::string> >::const_iterator interfaces_end = interfaces.end();
std::list<Mesh *> meshes;
for (; interfaces_it != interfaces_end ; ++interfaces_it) {
meshes.push_back(meshOfLinearInterface(*interfaces_it));
}
interface_mesh = mergeMeshes(meshes);
std::list<Mesh *>::iterator meshes_it = meshes.begin();
std::list<Mesh *>::iterator meshes_end = meshes.end();
for (; meshes_it != meshes_end ; ++meshes_it) {
delete *meshes_it;
}
return *interface_mesh;
}
const MeshGeomAbstract * MeshGeomContainer::getFactoryForElementType(ElementType el_type) const {
return factory_map(el_type);
}
__END_AKANTU__

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