blob: 0c9bf242d1bad23439e8eeee220c89c96ba694c6 (
plain)
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
63
64
|
#!/usr/bin/env python
import gudhi
import argparse
"""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__ = "GPL v3"
def is_file_perseus(file):
num_lines = open(file).read().count('\n')
try:
f = open(file)
num_dim = int(f.readline())
coeff = 1
for dim in range(0, num_dim):
try:
line = int(f.readline())
coeff *= abs(line)
except ValueError:
return False
if num_lines == (1 + num_dim + coeff):
return True
else:
return False
except ValueError:
return False
parser = argparse.ArgumentParser(description='Periodic cubical complex from a '
'Perseus-style file name.',
epilog='Example: '
'./periodic_cubical_complex_barcode_persistence_from_perseus_file_example.py'
' -f ../data/bitmap/CubicalTwoSphere.txt')
parser.add_argument("-f", "--file", type=str, required=True)
parser.add_argument('--no-barcode', default=False, action='store_true' , help='Flag for not to display the barcodes')
args = parser.parse_args()
if is_file_perseus(args.file):
print("#####################################################################")
print("PeriodicCubicalComplex creation")
periodic_cubical_complex = gudhi.PeriodicCubicalComplex(perseus_file=args.file)
print("persistence(homology_coeff_field=3, min_persistence=0)=")
diag = periodic_cubical_complex.persistence(homology_coeff_field=3, min_persistence=0)
print(diag)
print("betti_numbers()=")
print(periodic_cubical_complex.betti_numbers())
if args.no_barcode == False:
gudhi.plot_persistence_barcode(diag)
else:
print(args.file, "is not a valid perseus style file")
|
