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#!/usr/bin/env python
from gudhi import StrongWitnessComplex, SimplexTree
""" This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
Author(s): Vincent Rouvreau
Copyright (C) 2016 Inria
Modification(s):
- YYYY/MM Author: Description of the modification
"""
__author__ = "Vincent Rouvreau"
__copyright__ = "Copyright (C) 2016 Inria"
__license__ = "MIT"
print("#####################################################################")
print("WitnessComplex creation from nearest landmark table")
nearest_landmark_table = [
[[0, 0.0], [1, 0.1], [2, 0.2], [3, 0.3], [4, 0.4]],
[[1, 0.0], [2, 0.1], [3, 0.2], [4, 0.3], [0, 0.4]],
[[2, 0.0], [3, 0.1], [4, 0.2], [0, 0.3], [1, 0.4]],
[[3, 0.0], [4, 0.1], [0, 0.2], [1, 0.3], [2, 0.4]],
[[4, 0.0], [0, 0.1], [1, 0.2], [2, 0.3], [3, 0.4]],
]
witness_complex = StrongWitnessComplex(nearest_landmark_table=nearest_landmark_table)
simplex_tree = witness_complex.create_simplex_tree(max_alpha_square=0.41)
message = "Number of simplices: " + repr(simplex_tree.num_simplices())
print(message)
diag = simplex_tree.persistence(min_persistence=-0.1, homology_coeff_field=11)
print(diag)
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