1 files changed, 68 insertions, 0 deletions
diff --git a/cython/example/coordinate_graph_induced_complex.py b/cython/example/coordinate_graph_induced_complex.py
new file mode 100755
index 00000000..9e93109a
--- /dev/null
+++ b/cython/example/coordinate_graph_induced_complex.py
@@ -0,0 +1,68 @@
+#!/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) 2018 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) 2018 Inria"
+__license__ = "GPL v3"
+
+parser = argparse.ArgumentParser(description='Coordinate GIC '
+                                 'from points read in a OFF file.',
+                                 epilog='Example: '
+                                 'example/coordinate_graph_induced_complex.py '
+                                 '-f ../data/points/KleinBottle5D.off -c 0 -v'
+                                 '- Constructs the coordinate GIC with the '
+                                 'points from the given OFF file.')
+parser.add_argument("-f", "--file", type=str, required=True)
+parser.add_argument("-c", "--coordinate", type=int, default=0)
+parser.add_argument("-v", "--verbose", default=False, action='store_true' , help='Flag for program verbosity')
+
+args = parser.parse_args()
+
+nerve_complex = gudhi.CoverComplex()
+nerve_complex.set_verbose(args.verbose)
+
+if (nerve_complex.read_point_cloud(args.file)):
+    nerve_complex.set_type('GIC')
+    nerve_complex.set_color_from_coordinate(args.coordinate)
+    nerve_complex.set_function_from_coordinate(args.coordinate)
+    nerve_complex.set_graph_from_automatic_rips()
+    nerve_complex.set_automatic_resolution()
+    nerve_complex.set_gain()
+    nerve_complex.set_cover_from_function()
+    nerve_complex.find_simplices()
+    nerve_complex.plot_dot()
+    simplex_tree = nerve_complex.create_simplex_tree()
+    nerve_complex.compute_PD()
+    if (args.verbose):
+        print('Iterator on coordinate GIC simplices')
+        result_str = 'Coordinate GIC is of dimension ' + \
+            repr(simplex_tree.dimension()) + ' - ' + \
+            repr(simplex_tree.num_simplices()) + ' simplices - ' + \
+            repr(simplex_tree.num_vertices()) + ' vertices.'
+        print(result_str)
+        for filtered_value in simplex_tree.get_filtration():
+            print(filtered_value[0])