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mesh_utils.hh
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/**
* @file mesh_utils.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Dana Christen <dana.christen@epfl.ch>
* @author David Simon Kammer <david.kammer@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Leonardo Snozzi <leonardo.snozzi@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Thu Jan 14 2021
*
* @brief All mesh utils necessary for various tasks
*
*
* @section LICENSE
*
* Copyright (©) 2010-2021 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_common.hh"
#include "aka_csr.hh"
#include "mesh.hh"
/* -------------------------------------------------------------------------- */
#include <vector>
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_MESH_UTILS_HH_
#define AKANTU_MESH_UTILS_HH_
namespace akantu {
class MeshUtils {
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// build a CSR<Element> that contains for each node the list of connected
/// elements of a given spatial dimension
static void buildNode2Elements(const Mesh & mesh, CSR<Element> & node_to_elem,
Int spatial_dimension = _all_dimensions);
/// build a CSR<UInt> that contains for each node the number of
/// the connected elements of a given ElementType
static void
buildNode2ElementsElementTypeMap(const Mesh & mesh, CSR<Idx> & node_to_elem,
ElementType type,
GhostType ghost_type = _not_ghost);
/// build the facets elements on the boundaries of a mesh
static void buildFacets(Mesh & mesh);
/// build all the facets elements: boundary and internals and store them in
/// the mesh_facets for element of dimension from_dimension to to_dimension
static void buildAllFacets(const Mesh & mesh, Mesh & mesh_facets,
Int from_dimension, Int to_dimension);
/// build all the facets elements: boundary and internals and store them in
/// the mesh_facets
static void buildAllFacets(const Mesh & mesh, Mesh & mesh_facets,
Int to_dimension = 0);
/// build facets for a given spatial dimension
static void buildFacetsDimension(const Mesh & mesh, Mesh & mesh_facets,
bool boundary_only, Int dimension);
/// take the local_connectivity array as the array of local and ghost
/// connectivity, renumber the nodes and set the connectivity of the mesh
static void renumberMeshNodes(Mesh & mesh, Array<Idx> & local_connectivities,
Int nb_local_element, Int nb_ghost_element,
ElementType type, Array<Idx> & old_nodes);
/// compute pbc pair for a given direction
static void computePBCMap(const Mesh & mymesh, Int dir,
std::map<Idx, Idx> & pbc_pair);
/// compute pbc pair for a surface pair
static void computePBCMap(const Mesh & mymesh,
const std::pair<ID, ID> & surface_pair,
std::map<Idx, Idx> & pbc_pair);
/// remove not connected nodes /!\ this functions renumbers the nodes.
static void purifyMesh(Mesh & mesh);
/// fill the subelement to element and the elements to subelements data
static void fillElementToSubElementsData(Mesh & mesh);
/// flip facets based on global connectivity
static void
flipFacets(Mesh & mesh_facets,
const ElementTypeMapArray<Idx> & remote_global_connectivities,
GhostType gt_facet);
private:
/// match pairs that are on the associated pbc's
static void matchPBCPairs(const Mesh & mymesh, Int dir,
Array<Idx> & selected_left,
Array<Idx> & selected_right,
std::map<Idx, Idx> & pbc_pair);
/// function used by all the renumbering functions
static void
renumberNodesInConnectivity(Array<Idx> & list_nodes, Int nb_nodes,
std::map<Idx, Idx> & renumbering_map);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
};
} // namespace akantu
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "mesh_utils_inline_impl.hh"
#endif /* AKANTU_MESH_UTILS_HH_ */

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