internal::CellIDTranslator< dim > Class Template Reference

#include <deal.II/grid/cell_id_translator.h>

Public Member Functions
	CellIDTranslator (const types::global_cell_index n_coarse_cells, const types::global_cell_index n_global_levels)
types::global_cell_index	size () const
template<typename Accessor >
types::global_cell_index	translate (const TriaIterator< Accessor > &cell) const
template<typename Accessor >
types::global_cell_index	translate (const TriaIterator< Accessor > &cell, const types::global_cell_index i) const
CellId	to_cell_id (const types::global_cell_index id) const

Static Private Member Functions
static types::global_cell_index	convert_cell_id_binary_type_to_level_coarse_cell_id (const typename CellId::binary_type &binary_representation)

Private Attributes
const types::global_cell_index	n_coarse_cells
const types::global_cell_index	n_global_levels
std::vector< types::global_cell_index >	tree_sizes

Detailed Description

template<int dim>
class internal::CellIDTranslator< dim >

A class that helps to translate between CellIDs and globally unique indices. The resulting index space might be non-contiguous in the case of locally refined meshes.

The following code snippet shows how to set up an IndexSet for active cells, using this class:

// set up translator
CellIDTranslator<dim> translator(tria.n_global_coarse_cells(),
                                 tria.n_global_levels());
 
// initialize the index set with the correct size
IndexSet index_set(translator.size());
 
// convert IDs to indices and add them to the index set
for(const auto & cell : tria.active_cell_iterators())
  index_set.add_index(translator.translate(cell));

Note

The definition of the indices are not relevant.

Definition at line 55 of file cell_id_translator.h.

Constructor & Destructor Documentation

CellIDTranslator()

template<int dim>

internal::CellIDTranslator< dim >::CellIDTranslator	(	const types::global_cell_index	n_coarse_cells,
		const types::global_cell_index	n_global_levels
	)

Constructor taking the number of global coarse cells and number of global levels of a triangulation.

Definition at line 121 of file cell_id_translator.h.

Member Function Documentation

size()

template<int dim>

types::global_cell_index internal::CellIDTranslator< dim >::size

Return maximum number of cells, i.e., in the case the triangulation were globally refined n_global_levels - 1 times.

Definition at line 174 of file cell_id_translator.h.

translate() [1/2]

template<int dim>

template<typename Accessor >

types::global_cell_index internal::CellIDTranslator< dim >::translate

(

const TriaIterator< Accessor > &

cell

)

const

Convert a cell of type TriaAccessor, CellAccessor, DoFAccessor, or DoFCellAccessor to an index.

Definition at line 187 of file cell_id_translator.h.

translate() [2/2]

template<int dim>

template<typename Accessor >

types::global_cell_index internal::CellIDTranslator< dim >::translate	(	const TriaIterator< Accessor > &	cell,
		const types::global_cell_index	i
	)		const

Convert the i-th child of to an index.

Definition at line 210 of file cell_id_translator.h.

to_cell_id()

template<int dim>

CellId internal::CellIDTranslator< dim >::to_cell_id

(

const types::global_cell_index

id

)

const

Convert an index to a CellId.

Definition at line 226 of file cell_id_translator.h.

convert_cell_id_binary_type_to_level_coarse_cell_id()

template<int dim>

types::global_cell_index internal::CellIDTranslator< dim >::convert_cell_id_binary_type_to_level_coarse_cell_id ( const typename CellId::binary_type &  binary_representation )

staticprivate

Convert a binary representation to a index.

Definition at line 257 of file cell_id_translator.h.

Member Data Documentation

n_coarse_cells

template<int dim>

const types::global_cell_index internal::CellIDTranslator< dim >::n_coarse_cells

private

Number of global coarse cells.

Definition at line 105 of file cell_id_translator.h.

n_global_levels

template<int dim>

const types::global_cell_index internal::CellIDTranslator< dim >::n_global_levels

private

Number of global levels.

Definition at line 110 of file cell_id_translator.h.

tree_sizes

template<int dim>

std::vector<types::global_cell_index> internal::CellIDTranslator< dim >::tree_sizes

private

Offset of each level in the index space.

Definition at line 115 of file cell_id_translator.h.

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

• include/deal.II/grid/cell_id_translator.h