comma::ARExternalWeights< IndexT, RealT, IntT > Class Template Reference

ARComputer. Here, AR is the total external weights (that is, from a geometric point of view, the perimeter). Looking for the minimum leads in graph terms to a min-cut. More...

#include <ARComputer.h>

Inheritance diagram for comma::ARExternalWeights< IndexT, RealT, IntT >:

Public Member Functions
	ARExternalWeights (std::shared_ptr< Dual_Graph< IndexT, RealT, IntT > > graph)
	Constructor. More...
	~ARExternalWeights () override=default
	Destructor. More...
void	compute_and_update_features (const IndexT i_fc, const CellFeatures< IndexT, RealT, IntT > &cc_feats, const std::unordered_set< IndexT > &fc_of_cc, IntT &shared_faces, RealT &aspect_ratio, CellFeatures< IndexT, RealT, IntT > &new_feats) const override
	Computes features of the CC obtained by adding a given fine cell. The features are Aspect-Ratio, number of face shared with other cells already agglomerated (Current coarse cell means without i_fc) and those of CellFeatures. More...
Public Member Functions inherited from comma::ARComputer< IndexT, RealT, IntT >
	ARComputer (std::shared_ptr< Dual_Graph< IndexT, RealT, IntT > > graph)
	Constructor. More...
virtual	~ARComputer ()=default
	The destructor of the class. More...
virtual void	compute_and_update_features (const IndexT i_fc, const CellFeatures< IndexT, RealT, IntT > &cc_feats, const std::unordered_set< IndexT > &fc_of_cc, IntT &shared_faces, RealT &aspect_ratio, CellFeatures< IndexT, RealT, IntT > &new_feats) const =0
	Computes features of the CC obtained by adding a given fine cell. The features are Aspect-Ratio, number of face shared with other cells already agglomerated (Current coarse cell means without i_fc) and those of CellFeatures. More...

Additional Inherited Members
Protected Member Functions inherited from comma::ARComputer< IndexT, RealT, IntT >
void	compute_shared_faces (const IndexT i_fc, const std::unordered_set< IndexT > &fc_of_cc, RealT &shared_weights, std::unordered_set< IndexT > &shared_faces) const
	Computes number of shared faces and features of the CC obtained by adding a given fine cell. The features are Aspect-Ratio and number of face shared with other cells already agglomerated (Current coarse cell means without i_fc) More...
void	update_approximated_geometric_features (const IndexT i_fc, const CellFeatures< IndexT, RealT, IntT > &cc_feats, const std::unordered_set< IndexT > &fc_of_cc, CellFeatures< IndexT, RealT, IntT > &new_feats) const
	Compute approximated geometric features (e.g., diameter) More...
std::vector< RealT >	compute_and_update_barycenter (const IndexT i_fc, const CellFeatures< IndexT, RealT, IntT > &cc_feats, const std::unordered_set< IndexT > &fc_of_cc, CellFeatures< IndexT, RealT, IntT > &new_feats) const
	Compute the barycenter and update the features accordingly. More...
template<bool compute_weights = false, bool update_facets = false>
void	update_basic_features (const IndexT i_fc, const CellFeatures< IndexT, RealT, IntT > &cc_feats, const std::unordered_set< IndexT > &fc_of_cc, IntT &n_shared_faces, CellFeatures< IndexT, RealT, IntT > &new_feats) const
	Compute approximated geometric features (e.g., diameter) More...
template<unsigned int dim>
RealT constexpr	x_over_radius (const RealT sqx, const CellFeatures< IndexT, RealT, IntT > &feats) const
	Given a squared quantity and cell features, compute the ratio between the quantity and the radius of the cell (that is ), or an approximation of it where the numerator and denominator are raised to certain powers (instead of taking roots) to ensure non-dimensionality. More...
Protected Attributes inherited from comma::ARComputer< IndexT, RealT, IntT >
std::shared_ptr< Dual_Graph< IndexT, RealT, IntT > >	_graph
	Dual_Graph object determining Fine cells graph and hence the connectivity. More...

Detailed Description

template<typename IndexT, typename RealT, typename IntT>
class comma::ARExternalWeights< IndexT, RealT, IntT >

ARComputer. Here, AR is the total external weights (that is, from a geometric point of view, the perimeter). Looking for the minimum leads in graph terms to a min-cut.

Template Parameters

IndexT	type used for indices
RealT	type used for features
IntT	type used for integers (e.g., number of cells, faces,...)

Constructor & Destructor Documentation

ARExternalWeights()

template<typename IndexT , typename RealT , typename IntT >

comma::ARExternalWeights< IndexT, RealT, IntT >::ARExternalWeights ( std::shared_ptr< Dual_Graph< IndexT, RealT, IntT > >  graph )

inlineexplicit

Constructor.

Parameters

[in]

graph

Dual_Graph object that determines the connectivity

~ARExternalWeights()

template<typename IndexT , typename RealT , typename IntT >

comma::ARExternalWeights< IndexT, RealT, IntT >::~ARExternalWeights ( )

overridedefault

Destructor.

Member Function Documentation

compute_and_update_features()

template<typename IndexT , typename RealT , typename IntT >

void comma::ARExternalWeights< IndexT, RealT, IntT >::compute_and_update_features ( const IndexT  i_fc, const CellFeatures< IndexT, RealT, IntT > &  cc_feats, const std::unordered_set< IndexT > &  fc_of_cc, IntT &  shared_faces, RealT &  aspect_ratio, CellFeatures< IndexT, RealT, IntT > &  new_feats  ) const

inlineoverridevirtual

Computes features of the CC obtained by adding a given fine cell. The features are Aspect-Ratio, number of face shared with other cells already agglomerated (Current coarse cell means without i_fc) and those of CellFeatures.

Parameters

[in]	i_fc	Index of the fine cell to add to the coarse cell
[in]	cc_feats	Features of the current coarse cell
[in]	fc_of_cc	Index of the fine cells already agglomerated in the coarse cell
[out]	shared_faces	Number of faces shared by the fine cell with the current coarse cell
[out]	aspect_ratio	Aspect-Ratio of the (final) coarse cell
[out]	new_feats	Features of the (final) coarse cell

Implements comma::ARComputer< IndexT, RealT, IntT >.

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

• include/CoMMA/ARComputer.h