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-rwxr-xr-xsrc/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py70
1 files changed, 33 insertions, 37 deletions
diff --git a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
index 4abe22d4..b8f283b3 100755
--- a/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
+++ b/src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py
@@ -3,66 +3,62 @@
import gudhi
import argparse
-"""This file is part of the Gudhi Library. The Gudhi library
- (Geometric Understanding in Higher Dimensions) is a generic C++
- library for computational topology.
+""" 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
- Author(s): Vincent Rouvreau
+ Copyright (C) 2016 Inria
- Copyright (C) 2016 Inria
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
+ Modification(s):
+ - YYYY/MM Author: Description of the modification
"""
__author__ = "Vincent Rouvreau"
__copyright__ = "Copyright (C) 2016 Inria"
-__license__ = "GPL v3"
+__license__ = "MIT"
-parser = argparse.ArgumentParser(description='AlphaComplex creation from '
- 'points read in a OFF file.',
- epilog='Example: '
- 'example/alpha_complex_diagram_persistence_from_off_file_example.py '
- '-f ../data/points/tore3D_300.off -a 0.6'
- '- Constructs a alpha complex with the '
- 'points from the given OFF file.')
+parser = argparse.ArgumentParser(
+ description="AlphaComplex creation from " "points read in a OFF file.",
+ epilog="Example: "
+ "example/alpha_complex_diagram_persistence_from_off_file_example.py "
+ "-f ../data/points/tore3D_300.off -a 0.6"
+ "- Constructs a alpha complex with the "
+ "points from the given OFF file.",
+)
parser.add_argument("-f", "--file", type=str, required=True)
parser.add_argument("-a", "--max_alpha_square", type=float, default=0.5)
-parser.add_argument("-b", "--band", type=float, default=0.)
-parser.add_argument('--no-diagram', default=False, action='store_true' , help='Flag for not to display the diagrams')
+parser.add_argument("-b", "--band", type=float, default=0.0)
+parser.add_argument(
+ "--no-diagram",
+ default=False,
+ action="store_true",
+ help="Flag for not to display the diagrams",
+)
args = parser.parse_args()
-with open(args.file, 'r') as f:
+with open(args.file, "r") as f:
first_line = f.readline()
- if (first_line == 'OFF\n') or (first_line == 'nOFF\n'):
+ if (first_line == "OFF\n") or (first_line == "nOFF\n"):
print("#####################################################################")
print("AlphaComplex creation from points read in a OFF file")
-
+
message = "AlphaComplex with max_edge_length=" + repr(args.max_alpha_square)
print(message)
-
+
alpha_complex = gudhi.AlphaComplex(off_file=args.file)
- simplex_tree = alpha_complex.create_simplex_tree(max_alpha_square=args.max_alpha_square)
-
+ simplex_tree = alpha_complex.create_simplex_tree(
+ max_alpha_square=args.max_alpha_square
+ )
+
message = "Number of simplices=" + repr(simplex_tree.num_simplices())
print(message)
-
+
diag = simplex_tree.persistence()
-
+
print("betti_numbers()=")
print(simplex_tree.betti_numbers())
-
+
if args.no_diagram == False:
pplot = gudhi.plot_persistence_diagram(diag, band=args.band)
pplot.show()