Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData Class Reference

#include <deal.II/base/mpi_remote_point_evaluation.h>

Detailed Description

template<int dim, int spacedim = dim>
class Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData

Helper class to store and to access data of points positioned in processed cells.

Definition at line 216 of file mpi_remote_point_evaluation.h.

Public Member Functions
	CellData (const Triangulation< dim, spacedim > &triangulation)
std_cxx20::ranges::iota_view< unsigned int, unsigned int >	cell_indices () const
Triangulation< dim, spacedim >::active_cell_iterator	get_active_cell_iterator (const unsigned int cell) const
ArrayView< const Point< dim > >	get_unit_points (const unsigned int cell) const
template<typename DataType >
ArrayView< DataType >	get_data_view (const unsigned int cell, const ArrayView< DataType > &values, const unsigned int n_components=1) const

Public Attributes
std::vector< std::pair< int, int > >	cells
std::vector< unsigned int >	reference_point_ptrs
std::vector< Point< dim > >	reference_point_values

Private Attributes
const Triangulation< dim, spacedim > &	triangulation

Constructor & Destructor Documentation

CellData()

template<int dim, int spacedim>

Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::CellData

(

const Triangulation< dim, spacedim > &

triangulation

)

Constructor.

Parameters

triangulation

Triangulation of the domain.

Definition at line 268 of file mpi_remote_point_evaluation.cc.

Member Function Documentation

cell_indices()

template<int dim, int spacedim>

std_cxx20::ranges::iota_view< unsigned int, unsigned int > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::cell_indices

(

)

const

Return an object that can be thought of as an array containing all indices from zero (inclusive) to the total number of cells where points reside given by cells.size() (exclusive). This allows one to write code using range-based for loops of the following kind:

for (const auto cell : cell_data.cell_indices())
  {
    const auto cell_dofs =
      cell_data.get_active_cell_iterator(cell)->as_dof_handler_iterator(
        dof_handler);
 
    const auto unit_points = cell_data.get_unit_points(cell);
    const auto local_value = cell_data.get_data_view(cell, values);
 
    // user code: not shown
  }

Here, we are looping over all cells where points reside and use the index to call the functions get_active_cell_iterator(), get_unit_points(), and get_data_view().

Definition at line 277 of file mpi_remote_point_evaluation.cc.

get_active_cell_iterator()

template<int dim, int spacedim>

Triangulation< dim, spacedim >::active_cell_iterator Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::get_active_cell_iterator

(

const unsigned int

cell

)

const

Return active cell iterator of the processed cell cell.

Definition at line 287 of file mpi_remote_point_evaluation.cc.

get_unit_points()

template<int dim, int spacedim>

ArrayView< const Point< dim > > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::get_unit_points

(

const unsigned int

cell

)

const

Return unit points of the processed cell cell.

Definition at line 298 of file mpi_remote_point_evaluation.cc.

get_data_view()

template<int dim, int spacedim>

template<typename DataType >

ArrayView< DataType > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::get_data_view	(	const unsigned int	cell,
		const ArrayView< DataType > &	values,
		const unsigned int	n_components = 1
	)		const

Return local view of the processed cell cell for the vector values.

The number of components n_components needs to match the template argument of the same name supplied to process_and_evaluate().

For more than one component, the returned ArrayView has one entry for each component for each data point and all components for each point are stored consecutively.

Definition at line 738 of file mpi_remote_point_evaluation.h.

Member Data Documentation

cells

template<int dim, int spacedim = dim>

std::vector<std::pair<int, int> > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::cells

Level and index of processed cells.

Definition at line 285 of file mpi_remote_point_evaluation.h.

reference_point_ptrs

template<int dim, int spacedim = dim>

std::vector<unsigned int> Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::reference_point_ptrs

Pointers to the start and end of the (reference) points associated to the cell.

Definition at line 291 of file mpi_remote_point_evaluation.h.

reference_point_values

template<int dim, int spacedim = dim>

std::vector<Point<dim> > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::reference_point_values

Reference points in the interval [0,1]^dim.

Definition at line 296 of file mpi_remote_point_evaluation.h.

triangulation

template<int dim, int spacedim = dim>

const Triangulation<dim, spacedim>& Utilities::MPI::RemotePointEvaluation< dim, spacedim >::CellData::triangulation

private

Reference to the underlying triangulation needed for get_active_cell_iterator().

Definition at line 303 of file mpi_remote_point_evaluation.h.

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

• include/deal.II/base/mpi_remote_point_evaluation.h
• source/base/mpi_remote_point_evaluation.cc