dealii::CellsAgglomerator< dim, RtreeType > Class Template Reference

#include <agglomerator.h>

Public Member Functions
	CellsAgglomerator (const RtreeType &rtree, const unsigned int extraction_level)
const std::vector< std::vector< typename Triangulation< dim >::active_cell_iterator > > &	extract_agglomerates ()
unsigned int	get_n_levels () const
types::global_cell_index	get_n_nodes_per_level (const unsigned int level) const
const std::map< std::pair< types::global_cell_index, types::global_cell_index >, std::vector< types::global_cell_index > > &	get_hierarchy () const

Private Attributes
RtreeType *	rtree
const unsigned int	extraction_level
std::vector< std::vector< typename Triangulation< dim >::active_cell_iterator > >	agglomerates_on_level
std::vector< types::global_cell_index >	n_nodes_per_level
std::map< std::pair< types::global_cell_index, types::global_cell_index >, std::vector< types::global_cell_index > >	parent_node_to_children_nodes

Friends
template<int, int>
class	::AgglomerationHandler

Detailed Description

template<int dim, typename RtreeType>
class dealii::CellsAgglomerator< dim, RtreeType >

Helper class which handles agglomeration based on the R-tree data structure. Notice that the R-tree type is assumed to be an R-star-tree.

Definition at line 300 of file agglomerator.h.

Constructor & Destructor Documentation

CellsAgglomerator()

template<int dim, typename RtreeType>

dealii::CellsAgglomerator< dim, RtreeType >::CellsAgglomerator	(	const RtreeType &	rtree,
		const unsigned int	extraction_level )

Constructor. It takes a given rtree and an integer representing the index of the level to be extracted.

Definition at line 378 of file agglomerator.h.

References extraction_level, and rtree.

Member Function Documentation

extract_agglomerates()

template<int dim, typename RtreeType>

const std::vector< std::vector< typename Triangulation< dim >::active_cell_iterator > > & dealii::CellsAgglomerator< dim, RtreeType >::extract_agglomerates

(

)

Extract agglomerates based on the current tree and the extraction level. This function returns a reference to

Definition at line 392 of file agglomerator.h.

References agglomerates_on_level, extraction_level, std::min(), n_nodes_per_level, parent_node_to_children_nodes, and rtree.

Referenced by dealii::PolyUtils::construct_agglomerated_levels().

get_hierarchy()

template<int dim, typename RtreeType>

const std::map< std::pair< types::global_cell_index, types::global_cell_index >, std::vector< types::global_cell_index > > & dealii::CellsAgglomerator< dim, RtreeType >::get_hierarchy ( ) const

inline

This function returns a map which associates to each node on level extraction_level a list of children.

Definition at line 464 of file agglomerator.h.

References parent_node_to_children_nodes.

get_n_levels()

template<int dim, typename RtreeType>

unsigned int dealii::CellsAgglomerator< dim, RtreeType >::get_n_levels ( ) const

inline

Get total number of levels.

Definition at line 443 of file agglomerator.h.

References rtree.

get_n_nodes_per_level()

template<int dim, typename RtreeType>

types::global_cell_index dealii::CellsAgglomerator< dim, RtreeType >::get_n_nodes_per_level ( const unsigned int level ) const

inline

Return the number of nodes present in level level.

Definition at line 452 of file agglomerator.h.

References n_nodes_per_level.

Friends And Related Symbol Documentation

::AgglomerationHandler

template<int dim, typename RtreeType>

template<int, int>

friend class ::AgglomerationHandler

friend

Definition at line 304 of file agglomerator.h.

References extraction_level, and rtree.

Member Data Documentation

agglomerates_on_level

template<int dim, typename RtreeType>

std::vector<std::vector<typename Triangulation<dim>::active_cell_iterator> > dealii::CellsAgglomerator< dim, RtreeType >::agglomerates_on_level

private

Store agglomerates obtained after recursive extraction on nodes of level extraction_level.

Definition at line 358 of file agglomerator.h.

Referenced by extract_agglomerates().

extraction_level

template<int dim, typename RtreeType>

const unsigned int dealii::CellsAgglomerator< dim, RtreeType >::extraction_level

private

Extraction level.

Definition at line 351 of file agglomerator.h.

Referenced by ::AgglomerationHandler, CellsAgglomerator(), AgglomerationHandler< dim, spacedim >::connect_hierarchy(), and extract_agglomerates().

n_nodes_per_level

template<int dim, typename RtreeType>

std::vector<types::global_cell_index> dealii::CellsAgglomerator< dim, RtreeType >::n_nodes_per_level

private

Vector storing the number of nodes (and, ultimately, agglomerates) for each level.

Definition at line 364 of file agglomerator.h.

Referenced by extract_agglomerates(), and get_n_nodes_per_level().

parent_node_to_children_nodes

template<int dim, typename RtreeType>

std::map<std::pair<types::global_cell_index, types::global_cell_index>, std::vector<types::global_cell_index> > dealii::CellsAgglomerator< dim, RtreeType >::parent_node_to_children_nodes

private

Map which maps a node parent
on level l to a vector of integers which stores the index of children.

Definition at line 372 of file agglomerator.h.

Referenced by AgglomerationHandler< dim, spacedim >::connect_hierarchy(), extract_agglomerates(), and get_hierarchy().

rtree

template<int dim, typename RtreeType>

RtreeType* dealii::CellsAgglomerator< dim, RtreeType >::rtree

private

Raw pointer to the actual R-tree.

Definition at line 346 of file agglomerator.h.

Referenced by ::AgglomerationHandler, CellsAgglomerator(), extract_agglomerates(), and get_n_levels().

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

• /github/workspace/include/agglomerator.h