Page MenuHomec4science
Files F66809454

mesh_utils.hh
No OneTemporary
Actions

File Metadata

Created
Mon, Jun 17, 17:21

mesh_utils.hh
View Options

/**
* @file mesh_utils.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author David Simon Kammer <david.kammer@epfl.ch>
* @author Leonardo Snozzi <leonardo.snozzi@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date Fri Aug 20 12:19:44 2010
*
* @brief All mesh utils necessary for various tasks
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 "mesh.hh"
#include "aka_csr.hh"
/* -------------------------------------------------------------------------- */
#include <vector>
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MESH_UTILS_HH__
#define __AKANTU_MESH_UTILS_HH__
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
class MeshUtils {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
MeshUtils();
virtual ~MeshUtils();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// build map from nodes to elements
static void buildNode2Elements(const Mesh & mesh, CSR<UInt> & node_to_elem, UInt spatial_dimension = 0);
static void buildNode2Elements(const Mesh & mesh, CSR<Element> & node_to_elem, UInt spatial_dimension = 0);
// static void buildNode2Elements(const Mesh & mesh, Array<UInt> & node_offset, Array<UInt> & node_to_elem, UInt spatial_dimension = 0);
/// build map from nodes to elements for a specific element type
static void buildNode2ElementsByElementType(const Mesh & mesh, ElementType type, CSR<UInt> & node_to_elem);
// static void buildNode2ElementsByElementType(const Mesh & mesh, ElementType type, Array<UInt> & node_offset, Array<UInt> & node_to_elem);
/// build facets elements on boundary
static void buildFacets(Mesh & mesh);
/// build facets elements : boundary and internals
static void buildAllFacets(Mesh & mesh, Mesh & mesh_facets);
/// build facets for a given spatial dimension
static void buildFacetsDimension(Mesh & mesh,
Mesh & mesh_facets,
bool boundary_only,
UInt dimension,
ByElementTypeReal & barycenter);
/// build normal to some elements
// static void buildNormals(Mesh & mesh, UInt spatial_dimension=0);
/// 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,
UInt * local_connectivities,
UInt nb_local_element,
UInt nb_ghost_element,
ElementType type,
Array<UInt> & old_nodes);
static void setUIntData(Mesh & mesh, UInt * data, UInt nb_tags, const ElementType & type);
/// Detect closed surfaces of the mesh and save the surface id
/// of the surface elements in the array surface_id
static void buildSurfaceID(Mesh & mesh);
/// compute pbc pair for on given direction
static void computePBCMap(const Mesh & mymesh,const UInt dir,
std::map<UInt,UInt> & pbc_pair);
/// compute pbc pair for a surface pair
static void computePBCMap(const Mesh & mymesh,
const std::pair<Surface, Surface> & surface_pair,
const ElementType type,
std::map<UInt,UInt> & pbc_pair);
// /// tweak mesh connectivity to activate pbc
// static void tweakConnectivityForPBC(Mesh & mesh,
// bool flag_x,
// bool flag_y = false,
// bool flag_z = false);
/// create a multimap of nodes per surfaces
static void buildNodesPerSurface(const Mesh & mesh, CSR<UInt> & nodes_per_surface);
/// function to print the contain of the class
// virtual void printself(std::ostream & stream, int indent = 0) const;
/// remove not connected nodes /!\ this functions renumbers the nodes.
static void purifyMesh(Mesh & mesh);
/// function to insert intrinsic cohesive elements on the selected
/// facets
static void insertIntrinsicCohesiveElements(Mesh & mesh,
Mesh & mesh_facets,
ElementType type_facet,
const Array<UInt> & facet_insertion);
/// function to insert cohesive elements on the selected facets
static void insertCohesiveElements(Mesh & mesh,
Mesh & mesh_facets,
ElementType type_facet,
const Array<UInt> & facet_insertion,
Array<UInt> & doubled_nodes,
Array<UInt> & doubled_facets);
private:
/// match pairs that are on the associated pbc's
static void matchPBCPairs(const Mesh & mymesh,
const UInt dir,
std::vector<UInt> & selected_left,
std::vector<UInt> & selected_right,
std::map<UInt,UInt> & pbc_pair);
/// function used by all the renumbering functions
static void renumberNodesInConnectivity(UInt * list_nodes,
UInt nb_nodes,
std::map<UInt, UInt> & renumbering_map);
/// function to double a given facet and update the list of doubled
/// nodes
static void doubleFacet(Mesh & mesh,
Mesh & mesh_facets,
Element & facet,
Array<UInt> & doubled_nodes,
Array<UInt> & doubled_facets);
/// function to double a subfacet given start and end index for
/// local facet_to_subfacet vector, and update the list of doubled
/// nodes
static void doubleSubfacet(Mesh & mesh,
Mesh & mesh_facets,
const Element & subfacet,
UInt start,
UInt end,
Array<UInt> & doubled_nodes);
/// double middle nodes if facets are _segment_3
static void doubleMiddleNode(Mesh & mesh,
Mesh & mesh_facets,
ElementType type_facet,
Array<UInt> & doubled_nodes,
const Array<UInt> & doubled_facets);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
};
class ElementSorter {
public:
ElementSorter(const ElementSorter & e) : atan2(e.atan2) {}
ElementSorter(std::map<Element, Real, CompElementLess> & atan2) : atan2(atan2) {}
inline bool operator()(const Element & first, const Element & second);
private:
std::map<Element, Real, CompElementLess> & atan2;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#if defined (AKANTU_INCLUDE_INLINE_IMPL)
# include "mesh_utils_inline_impl.cc"
#endif
/// standard output stream operator
// inline std::ostream & operator <<(std::ostream & stream, const MeshUtils & _this)
// {
// _this.printself(stream);
// return stream;
// }
__END_AKANTU__
#endif /* __AKANTU_MESH_UTILS_HH__ */

Event Timeline

c4science · Help