Add cubical_complex_from_perseus_file_example and its required interfaces

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/ST_cythonize@1266 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: ba6c468f62e86d8b07b5e9922da3370348708144

1 files changed, 53 insertions, 0 deletions

diff --git a/src/cython/example/cubical_complex_from_perseus_file_example.py b/src/cython/example/cubical_complex_from_perseus_file_example.py
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+++ b/src/cython/example/cubical_complex_from_perseus_file_example.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+
+import gudhi
+import numpy
+import argparse
+import operator
+
+
+"""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='Cubical complex from a perseus'
+                                 'file style name.',
+                                 epilog='Example: '
+                                 './cubical_complex_from_perseus_file_example.py'
+                                 '../data/bitmap/CubicalTwoSphere.txt')
+parser.add_argument('perseus_file', type=str, required=True,
+                    help='Perseus file style name')
+
+args = parser.parse_args()
+
+print("#####################################################################")
+print("CubicalComplex creation")
+cubical_complex = gudhi.CubicalComplex(perseus_file=args.perseus_file)
+
+print("persistence(homology_coeff_field=2, min_persistence=0)=")
+print(cubical_complex.persistence(homology_coeff_field=2, min_persistence=0))
+
+print("betti_numbers()=")
+print(cubical_complex.betti_numbers())
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