Tangential complex reference manual¶
- class gudhi.TangentialComplex¶
Bases:
object
The class Tangential_complex represents a tangential complex. After the computation of the complex, an optional post-processing called perturbation can be run to attempt to remove inconsistencies.
- __init__()¶
TangentialComplex constructor.
- Parameters
Or
- Parameters
off_file¶ (string) – An OFF file style name.
- compute_tangential_complex()¶
This function computes the tangential complex.
- Raises
ValueError – In debug mode, if the computed star dimension is too low. Try to set a bigger maximal edge length value with
set_max_squared_edge_length()
if this happens.
- create_simplex_tree()¶
Exports the complex into a simplex tree.
- Returns
A simplex tree created from the complex.
- Return type
- fix_inconsistencies_using_perturbation()¶
Attempts to fix inconsistencies by perturbing the point positions.
- get_point()¶
This function returns the point corresponding to a given vertex.
- Parameters
vertex¶ (int.) – The vertex.
- Returns
The point.
- Return type
list of float
- num_inconsistent_simplices()¶
- Returns
The number of inconsistent simplices.
- Return type
unsigned
- num_inconsistent_stars()¶
- Returns
The number of stars containing at least one inconsistent simplex.
- Return type
unsigned
- num_simplices()¶
- Returns
Total number of simplices in stars (including duplicates that appear in several stars).
- Return type
unsigned
- num_vertices()¶
- Returns
The number of vertices.
- Return type
unsigned
- set_max_squared_edge_length()¶
Sets the maximal possible squared edge length for the edges in the triangulations.
- Parameters
max_squared_edge_length¶ (double) – Maximal possible squared edge length.
If the maximal edge length value is too low
compute_tangential_complex()
will throw an exception in debug mode.