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mesh_geom_factory_tmpl.hh
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rAKA akantu
mesh_geom_factory_tmpl.hh
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/**
* @file mesh_geom_factory_tmpl.hh
*
* @author Lucas Frerot <lucas.frerot@epfl.ch>
* @author Clement Roux <clement.roux@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Fri Feb 27 2015
* @date last modification: Wed Jan 31 2018
*
* @brief Class for constructing the CGAL primitives of a mesh
*
*
* Copyright (©) 2015-2018 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/>.
*
*/
#ifndef __AKANTU_MESH_GEOM_FACTORY_TMPL_HH__
#define __AKANTU_MESH_GEOM_FACTORY_TMPL_HH__
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "mesh_geom_common.hh"
#include "mesh_geom_factory.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
template <UInt dim, ElementType type, class Primitive, class Kernel>
MeshGeomFactory<dim, type, Primitive, Kernel>::MeshGeomFactory(Mesh & mesh)
: MeshGeomAbstract(mesh), data_tree(NULL), primitive_list() {}
template <UInt dim, ElementType type, class Primitive, class Kernel>
MeshGeomFactory<dim, type, Primitive, Kernel>::~MeshGeomFactory() {
delete data_tree;
}
/**
* This function loops over the elements of `type` in the mesh and creates the
* AABB tree of geometrical primitves (`data_tree`).
*/
template <UInt dim, ElementType type, class Primitive, class Kernel>
void MeshGeomFactory<dim, type, Primitive, Kernel>::constructData(
GhostType ghost_type) {
AKANTU_DEBUG_IN();
primitive_list.clear();
UInt nb_nodes_per_element = mesh.getNbNodesPerElement(type);
const Array<UInt> & connectivity = mesh.getConnectivity(type, ghost_type);
const Array<Real> & nodes = mesh.getNodes();
UInt el_index = 0;
Array<UInt>::const_vector_iterator it =
connectivity.begin(nb_nodes_per_element);
Array<UInt>::const_vector_iterator end =
connectivity.end(nb_nodes_per_element);
Matrix<Real> node_coordinates(dim, nb_nodes_per_element);
// This loop builds the list of primitives
for (; it != end; ++it, ++el_index) {
const Vector<UInt> & el_connectivity = *it;
for (UInt i = 0; i < nb_nodes_per_element; i++)
for (UInt j = 0; j < dim; j++)
node_coordinates(j, i) = nodes(el_connectivity(i), j);
// the unique elemental id assigned to the primitive is the
// linearized element index over ghost type
addPrimitive(node_coordinates, el_index);
}
delete data_tree;
// This condition allows the use of the mesh geom module
// even if types are not compatible with AABB tree algorithm
if (TreeTypeHelper<Primitive, Kernel>::is_valid)
data_tree = new typename TreeTypeHelper<Primitive, Kernel>::tree(
primitive_list.begin(), primitive_list.end());
AKANTU_DEBUG_OUT();
}
template <UInt dim, ElementType type, class Primitive, class Kernel>
void MeshGeomFactory<dim, type, Primitive, Kernel>::addPrimitive(
const Matrix<Real> & node_coordinates, UInt id) {
this->addPrimitive(node_coordinates, id, this->primitive_list);
}
// (2D, _triangle_3) decomposed into Triangle<cgal::Cartesian>
template <>
inline void
MeshGeomFactory<2, _triangle_3, Triangle<cgal::Cartesian>, cgal::Cartesian>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Triangle<cgal::Cartesian>,
cgal::Cartesian>::container_type & list) {
TreeTypeHelper<Triangle<cgal::Cartesian>, cgal::Cartesian>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), 0.),
b(node_coordinates(0, 1), node_coordinates(1, 1), 0.),
c(node_coordinates(0, 2), node_coordinates(1, 2), 0.);
Triangle<cgal::Cartesian> t(a, b, c);
t.setId(id);
list.push_back(t);
}
// (2D, _triangle_6) decomposed into Triangle<cgal::Cartesian>
template <>
inline void
MeshGeomFactory<2, _triangle_6, Triangle<cgal::Cartesian>, cgal::Cartesian>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Triangle<cgal::Cartesian>,
cgal::Cartesian>::container_type & list) {
TreeTypeHelper<Triangle<cgal::Cartesian>, cgal::Cartesian>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), 0.),
b(node_coordinates(0, 1), node_coordinates(1, 1), 0.),
c(node_coordinates(0, 2), node_coordinates(1, 2), 0.);
Triangle<cgal::Cartesian> t(a, b, c);
t.setId(id);
list.push_back(t);
}
// (2D, _triangle_3) decomposed into Line_arc<cgal::Spherical>
template <>
inline void
MeshGeomFactory<2, _triangle_3, Line_arc<cgal::Spherical>, cgal::Spherical>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Line_arc<cgal::Spherical>,
cgal::Spherical>::container_type & list) {
TreeTypeHelper<Line_arc<cgal::Spherical>, cgal::Spherical>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), 0.),
b(node_coordinates(0, 1), node_coordinates(1, 1), 0.),
c(node_coordinates(0, 2), node_coordinates(1, 2), 0.);
/*std::cout << "elem " << id << " node 1 : x_node=" << node_coordinates(0, 0)
<< ", x_arc_node=" << a.x() << ", y_node=" << node_coordinates(1, 0)
<< ", y_arc_node=" << a.y() << std::endl ;
std::cout << "elem " << id << " node 2 : x_node=" << node_coordinates(0, 1)
<< ", x_arc_node=" << b.x() << ", y_node=" << node_coordinates(1, 1)
<< ", y_arc_node=" << b.y() << std::endl ;
std::cout << "elem " << id << " node 2 : x_node=" << node_coordinates(0, 2)
<< ", x_arc_node=" << c.x() << ", y_node=" << node_coordinates(1, 2)
<< ", y_arc_node=" << c.y() << std::endl ;*/
CGAL::Line_3<cgal::Spherical> l1(a, b), l2(b, c), l3(c, a);
Line_arc<cgal::Spherical> s1(l1, a, b), s2(l2, b, c), s3(l3, c, a);
s1.setId(id);
s1.setSegId(0);
s2.setId(id);
s2.setSegId(1);
s3.setId(id);
s3.setSegId(2);
list.push_back(s1);
list.push_back(s2);
list.push_back(s3);
}
#if defined(AKANTU_IGFEM)
// (2D, _igfem_triangle_4) decomposed into Line_arc<cgal::Spherical>
template <>
inline void MeshGeomFactory<2, _igfem_triangle_4, Line_arc<cgal::Spherical>,
cgal::Spherical>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Line_arc<cgal::Spherical>,
cgal::Spherical>::container_type & list) {
TreeTypeHelper<Line_arc<cgal::Spherical>, cgal::Spherical>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), 0.),
b(node_coordinates(0, 1), node_coordinates(1, 1), 0.),
c(node_coordinates(0, 2), node_coordinates(1, 2), 0.);
CGAL::Line_3<cgal::Spherical> l1(a, b), l2(b, c), l3(c, a);
Line_arc<cgal::Spherical> s1(l1, a, b), s2(l2, b, c), s3(l3, c, a);
s1.setId(id);
s1.setSegId(0);
s2.setId(id);
s2.setSegId(1);
s3.setId(id);
s3.setSegId(2);
list.push_back(s1);
list.push_back(s2);
list.push_back(s3);
}
// (2D, _igfem_triangle_4) decomposed into Line_arc<cgal::Spherical>
template <>
inline void MeshGeomFactory<2, _igfem_triangle_5, Line_arc<cgal::Spherical>,
cgal::Spherical>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Line_arc<cgal::Spherical>,
cgal::Spherical>::container_type & list) {
TreeTypeHelper<Line_arc<cgal::Spherical>, cgal::Spherical>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), 0.),
b(node_coordinates(0, 1), node_coordinates(1, 1), 0.),
c(node_coordinates(0, 2), node_coordinates(1, 2), 0.);
CGAL::Line_3<cgal::Spherical> l1(a, b), l2(b, c), l3(c, a);
Line_arc<cgal::Spherical> s1(l1, a, b), s2(l2, b, c), s3(l3, c, a);
s1.setId(id);
s1.setSegId(0);
s2.setId(id);
s2.setSegId(1);
s3.setId(id);
s3.setSegId(2);
list.push_back(s1);
list.push_back(s2);
list.push_back(s3);
}
#endif
// (3D, _tetrahedron_4) decomposed into Triangle<cgal::Cartesian>
template <>
inline void
MeshGeomFactory<3, _tetrahedron_4, Triangle<cgal::Cartesian>, cgal::Cartesian>::
addPrimitive(const Matrix<Real> & node_coordinates, UInt id,
TreeTypeHelper<Triangle<cgal::Cartesian>,
cgal::Cartesian>::container_type & list) {
TreeTypeHelper<Triangle<cgal::Cartesian>, cgal::Cartesian>::point_type a(
node_coordinates(0, 0), node_coordinates(1, 0), node_coordinates(2, 0)),
b(node_coordinates(0, 1), node_coordinates(1, 1), node_coordinates(2, 1)),
c(node_coordinates(0, 2), node_coordinates(1, 2), node_coordinates(2, 2)),
d(node_coordinates(0, 3), node_coordinates(1, 3), node_coordinates(2, 3));
Triangle<cgal::Cartesian> t1(a, b, c), t2(b, c, d), t3(c, d, a), t4(d, a, b);
t1.setId(id);
t2.setId(id);
t3.setId(id);
t4.setId(id);
list.push_back(t1);
list.push_back(t2);
list.push_back(t3);
list.push_back(t4);
}
} // namespace akantu
#endif // __AKANTU_MESH_GEOM_FACTORY_TMPL_HH__
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