diff options
author | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2016-11-30 10:33:56 +0000 |
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committer | vrouvrea <vrouvrea@636b058d-ea47-450e-bf9e-a15bfbe3eedb> | 2016-11-30 10:33:56 +0000 |
commit | d7d59f1e4245af3595c8eafd0abc0abdc4b5805d (patch) | |
tree | bef4d3b905d018d15609e5c35c61412fe1b6dcaa /src/cython/example | |
parent | 97d80185d6ec4d5e8f81b4cd4936d29a6d63b05b (diff) |
Doc, examples and tests updates for tangential
git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/ST_cythonize@1805 636b058d-ea47-450e-bf9e-a15bfbe3eedb
Former-commit-id: 56d080f79a7a0c3b6eb3ed38b376e899cb17c8f9
Diffstat (limited to 'src/cython/example')
-rwxr-xr-x | src/cython/example/alpha_complex_diagram_persistence_from_off_file_example.py | 3 | ||||
-rwxr-xr-x | src/cython/example/tangential_complex_plain_homology_from_off_file_example.py | 66 |
2 files changed, 67 insertions, 2 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 6cdd5506..ae03aa67 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 @@ -35,8 +35,7 @@ parser = argparse.ArgumentParser(description='AlphaComplex creation from ' '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 file. File format ' - 'is X1, X2, ..., Xn') + '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('--no-diagram', default=False, action='store_true' , help='Flag for not to display the diagrams') diff --git a/src/cython/example/tangential_complex_plain_homology_from_off_file_example.py b/src/cython/example/tangential_complex_plain_homology_from_off_file_example.py new file mode 100755 index 00000000..be4c40be --- /dev/null +++ b/src/cython/example/tangential_complex_plain_homology_from_off_file_example.py @@ -0,0 +1,66 @@ +#!/usr/bin/env python + +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. + + Author(s): Vincent Rouvreau + + 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/>. +""" + +__author__ = "Vincent Rouvreau" +__copyright__ = "Copyright (C) 2016 INRIA" +__license__ = "GPL v3" + +parser = argparse.ArgumentParser(description='TangentialComplex creation from ' + 'points read in a OFF file.', + epilog='Example: ' + 'example/tangential_complex_plain_homology_from_off_file_example.py ' + '-f ../data/points/tore3D_300.off' + '- Constructs a tangential complex with the ' + 'points from the given OFF file') +parser.add_argument("-f", "--file", type=str, required=True) +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: + first_line = f.readline() + if (first_line == 'OFF\n') or (first_line == 'nOFF\n'): + print("#####################################################################") + print("TangentialComplex creation from points read in a OFF file") + + tc = gudhi.TangentialComplex(off_file=args.file) + st = tc.create_simplex_tree() + + message = "Number of simplices=" + repr(st.num_simplices()) + print(message) + + diag = st.persistence(persistence_dim_max = True) + + print("betti_numbers()=") + print(st.betti_numbers()) + + if args.no_diagram == False: + gudhi.diagram_persistence(diag) + else: + print(args.file, "is not a valid OFF file") + + f.close() |