Gudhi::rips_complex::SimplicialComplexForRips Struct Reference

The concept SimplicialComplexForRips describes the requirements for a type to implement a simplicial complex, that can be created from a Rips_complex. The only available model for the moment is the Simplex_tree. More...

Public Types
typedef unspecified	Filtration_value
	Type used to store the filtration values of the simplicial complex.
typedef unspecified	Simplex_handle
	Handle type to a simplex contained in the simplicial complex.

Public Member Functions
template<class OneSkeletonGraph >
void	insert_graph (const OneSkeletonGraph &skel_graph)
	Inserts a given Gudhi::rips_complex::Rips_complex::OneSkeletonGraph in the simplicial complex.
void	expansion (int max_dim)
	Expands the simplicial complex containing only its one skeleton until a given maximal dimension as explained in Rips complex definition.
template<typename Blocker >
void	expansion_with_blockers (int max_dim, Blocker block_simplex)
	Expands a simplicial complex containing only a graph. Simplices corresponding to cliques in the graph are added incrementally, faces before cofaces, unless the simplex has dimension larger than max_dim or block_simplex returns true for this simplex. More...
unspecified	simplex_vertex_range (Simplex_handle sh)
	Returns a range over the vertices of a simplex.
std::size_t	num_vertices ()
	Returns the number of vertices in the simplicial complex.

Detailed Description

The concept SimplicialComplexForRips describes the requirements for a type to implement a simplicial complex, that can be created from a Rips_complex. The only available model for the moment is the Simplex_tree.

Member Function Documentation

expansion_with_blockers()

template<typename Blocker >

void Gudhi::rips_complex::SimplicialComplexForRips::expansion_with_blockers	(	int	max_dim,
		Blocker	block_simplex
	)

Expands a simplicial complex containing only a graph. Simplices corresponding to cliques in the graph are added incrementally, faces before cofaces, unless the simplex has dimension larger than max_dim or block_simplex returns true for this simplex.

Parameters

[in]	max_dim	Expansion maximal dimension value.
[in]	block_simplex	Blocker oracle. Its concept is bool block_simplex(Simplex_handle sh)

The function identifies a candidate simplex whose faces are all already in the complex, inserts it with a filtration value corresponding to the maximum of the filtration values of the faces, then calls block_simplex on a Simplex_handle for this new simplex. If block_simplex returns true, the simplex is removed, otherwise it is kept.

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

• concept/Rips_complex/SimplicialComplexForRips.h