1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
""" 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
"""
from gudhi import WitnessComplex, StrongWitnessComplex, SimplexTree
__author__ = "Vincent Rouvreau"
__copyright__ = "Copyright (C) 2016 Inria"
__license__ = "MIT"
def test_empty_witness_complex():
witness = WitnessComplex()
assert witness.__is_defined() == False
def test_witness_complex():
nearest_landmark_table = [
[[0, 0], [1, 1], [2, 2], [3, 3], [4, 4]],
[[1, 0], [2, 1], [3, 2], [4, 3], [0, 4]],
[[2, 0], [3, 1], [4, 2], [0, 3], [1, 4]],
[[3, 0], [4, 1], [0, 2], [1, 3], [2, 4]],
[[4, 0], [0, 1], [1, 2], [2, 3], [3, 4]],
]
witness_complex = WitnessComplex(nearest_landmark_table=nearest_landmark_table)
simplex_tree = witness_complex.create_simplex_tree(max_alpha_square=4.1)
assert simplex_tree.num_vertices() == 5
assert simplex_tree.num_simplices() == 31
simplex_tree = witness_complex.create_simplex_tree(
max_alpha_square=4.1, limit_dimension=2
)
assert simplex_tree.num_vertices() == 5
assert simplex_tree.num_simplices() == 25
def test_strong_witness_complex():
nearest_landmark_table = [
[[0, 0], [1, 1], [2, 2], [3, 3], [4, 4]],
[[1, 0], [2, 1], [3, 2], [4, 3], [0, 4]],
[[2, 0], [3, 1], [4, 2], [0, 3], [1, 4]],
[[3, 0], [4, 1], [0, 2], [1, 3], [2, 4]],
[[4, 0], [0, 1], [1, 2], [2, 3], [3, 4]],
]
strong_witness_complex = StrongWitnessComplex(
nearest_landmark_table=nearest_landmark_table
)
simplex_tree = strong_witness_complex.create_simplex_tree(max_alpha_square=4.1)
assert simplex_tree.num_vertices() == 5
assert simplex_tree.num_simplices() == 31
simplex_tree = strong_witness_complex.create_simplex_tree(
max_alpha_square=4.1, limit_dimension=2
)
assert simplex_tree.num_vertices() == 5
assert simplex_tree.num_simplices() == 25
|
