Arcane::mesh::MeshNodeMerger Class Reference

Merging nodes of a mesh. More...

#include <arcane/mesh/MeshNodeMerger.h>

Inheritance diagram for Arcane::mesh::MeshNodeMerger:

Collaboration diagram for Arcane::mesh::MeshNodeMerger:

Public Member Functions
	MeshNodeMerger (IMesh *mesh)
void	mergeNodes (Int32ConstArrayView nodes_local_id, Int32ConstArrayView nodes_to_merge_local_id, bool allow_non_corresponding_face=false)
Public Member Functions inherited from Arcane::TraceAccessor
	TraceAccessor (ITraceMng *m)
	Constructs an accessor via the trace manager m.
	TraceAccessor (const TraceAccessor &rhs)
	Copy constructor.
TraceAccessor &	operator= (const TraceAccessor &rhs)
	Copy assignment operator.
virtual	~TraceAccessor ()
	Frees resources.
ITraceMng *	traceMng () const
	Trace manager.
TraceMessage	info () const
	Flow for an information message.
TraceMessage	pinfo () const
	Flow for a parallel information message.
TraceMessage	info (char category) const
	Flow for an information message of a given category.
TraceMessage	pinfo (char category) const
	Flow for a parallel information message of a given category.
TraceMessage	info (bool v) const
	Flow for an information message.
TraceMessage	warning () const
	Flow for a warning message.
TraceMessage	pwarning () const
TraceMessage	error () const
	Flow for an error message.
TraceMessage	perror () const
TraceMessage	log () const
	Flow for a log message.
TraceMessage	plog () const
	Flow for a log message.
TraceMessage	logdate () const
	Flow for a log message preceded by the date.
TraceMessage	fatal () const
	Flow for a fatal error message.
TraceMessage	pfatal () const
	Flow for a parallel fatal error message.
TraceMessageDbg	debug (Trace::eDebugLevel=Trace::Medium) const
	Flow for a debug message.
Trace::eDebugLevel	configDbgLevel () const
	Debug level of the configuration file.
TraceMessage	info (Int32 verbose_level) const
	Flow for an information message of a given level.
TraceMessage	linfo () const
	Flow for an information message with the local information level of this instance.
TraceMessage	linfo (Int32 relative_level) const
	Flow for an information message with the local information level of this instance.
void	fatalMessage (const StandaloneTraceMessage &o) const

Private Attributes
IMesh *	m_mesh = nullptr
NodeFamily *	m_node_family = nullptr
EdgeFamily *	m_edge_family = nullptr
FaceFamily *	m_face_family = nullptr
CellFamily *	m_cell_family = nullptr
std::map< Node, Node >	m_nodes_correspondance
std::map< Face, Face >	m_faces_correspondance

Additional Inherited Members
Protected Member Functions inherited from Arcane::TraceAccessor
void	_setLocalVerboseLevel (Int32 v)
Int32	_localVerboseLevel () const

Detailed Description

Merging nodes of a mesh.

The current implementation only handles 'classical' meshes and only handles node, edge, face, and cell families.

Furthermore, the 3D part has not been tested. It should work as long as the edges are not active. Same for the parallel part, but it has not been tested either.

Definition at line 52 of file MeshNodeMerger.h.

Constructor & Destructor Documentation

MeshNodeMerger()

Arcane::mesh::MeshNodeMerger::MeshNodeMerger ( IMesh * mesh )

explicit

Definition at line 42 of file MeshNodeMerger.cc.

Member Function Documentation

mergeNodes()

void Arcane::mesh::MeshNodeMerger::mergeNodes	(	Int32ConstArrayView	nodes_local_id,
		Int32ConstArrayView	nodes_to_merge_local_id,
		bool	allow_non_corresponding_face = false )

The principle of the algorithm is as follows:

1. Determine the set of faces and cells that have at least one modified node. These are the ones that need to be processed.
2. For faces, determine those whose nodes are all merged. These faces will be merged and disappear. It must be determined with which faces they will merge. In 3D, the same must be done for edges.
3. Once everything is calculated, the connectivities of the entities (cells, faces, and edges) that are modified must be updated.
4. Finally, the merged nodes, edges, and faces must be destroyed.

It may be necessary to adapt this algorithm when the new connectivities are in place.

Definition at line 81 of file MeshNodeMerger.cc.

References ARCANE_FATAL, Arcane::Face::backCell(), Arcane::FaceReorienter::checkAndChangeOrientation(), ENUMERATE_, ENUMERATE_CELL, Arcane::mesh::ItemTools::findFaceInNode2(), Arcane::TraceAccessor::info(), Arcane::Face::nbCell(), Arcane::ItemWithNodes::nbNode(), Arcane::ItemWithNodes::nodes(), Arcane::Item::null(), Arcane::Array< T >::resize(), Arcane::ConstArrayView< T >::size(), Arcane::Item::type(), and Arcane::Item::uniqueId().

Referenced by Arcane::UnstructuredMeshUtilities::mergeNodes().

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Member Data Documentation

m_cell_family

CellFamily* Arcane::mesh::MeshNodeMerger::m_cell_family = nullptr

private

Definition at line 71 of file MeshNodeMerger.h.

m_edge_family

EdgeFamily* Arcane::mesh::MeshNodeMerger::m_edge_family = nullptr

private

Definition at line 69 of file MeshNodeMerger.h.

m_face_family

FaceFamily* Arcane::mesh::MeshNodeMerger::m_face_family = nullptr

private

Definition at line 70 of file MeshNodeMerger.h.

m_faces_correspondance

std::map<Face, Face> Arcane::mesh::MeshNodeMerger::m_faces_correspondance

private

Definition at line 73 of file MeshNodeMerger.h.

m_mesh

IMesh* Arcane::mesh::MeshNodeMerger::m_mesh = nullptr

private

Definition at line 67 of file MeshNodeMerger.h.

m_node_family

NodeFamily* Arcane::mesh::MeshNodeMerger::m_node_family = nullptr

private

Definition at line 68 of file MeshNodeMerger.h.

m_nodes_correspondance

std::map<Node, Node> Arcane::mesh::MeshNodeMerger::m_nodes_correspondance

private

Definition at line 72 of file MeshNodeMerger.h.

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The documentation for this class was generated from the following files:

• MeshNodeMerger.h
• MeshNodeMerger.cc