sparse rips example

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/sparserips-python@3880 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: 8dfc1b3218d3ac3e97a04bf25e59e2d48fc8db1d

1 files changed, 43 insertions, 0 deletions

diff --git a/src/cython/example/sparse_rips_persistence_diagram.py b/src/cython/example/sparse_rips_persistence_diagram.py
new file mode 100755
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+++ b/src/cython/example/sparse_rips_persistence_diagram.py
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+#!/usr/bin/env python
+
+import gudhi
+
+"""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):       Marc Glisse
+
+   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__ = "Marc Glisse"
+__copyright__ = "Copyright (C) 2016 Inria"
+__license__ = "GPL v3"
+
+print("#####################################################################")
+print("RipsComplex creation from points")
+rips = gudhi.RipsComplex(points=[[0, 0], [0, 0.1], [1, 0], [0, 1], [1, 1]],
+                         max_edge_length=42, sparse=.5)
+
+simplex_tree = rips.create_simplex_tree(max_dimension=2)
+
+
+diag = simplex_tree.persistence(homology_coeff_field=2, min_persistence=0)
+print("diag=", diag)
+
+pplot = gudhi.plot_persistence_diagram(diag)
+pplot.show()