From 1e283611d2999003353e57f429bc9a0513fb0508 Mon Sep 17 00:00:00 2001 From: vrouvrea Date: Tue, 31 May 2016 09:53:04 +0000 Subject: Rename files using PEP8 recommendations git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/ST_cythonize@1226 636b058d-ea47-450e-bf9e-a15bfbe3eedb Former-commit-id: 4fb27e76a494266c9f79f411c03633f68e2da525 --- src/cython/example/mini_simplex_tree_example.py | 72 +++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100755 src/cython/example/mini_simplex_tree_example.py (limited to 'src/cython/example/mini_simplex_tree_example.py') diff --git a/src/cython/example/mini_simplex_tree_example.py b/src/cython/example/mini_simplex_tree_example.py new file mode 100755 index 00000000..0461a1df --- /dev/null +++ b/src/cython/example/mini_simplex_tree_example.py @@ -0,0 +1,72 @@ +#!/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): Vincent Rouvreau + + Copyright (C) 2016 INRIA Saclay (France) + + 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 . +""" + +__author__ = "Vincent Rouvreau" +__copyright__ = "Copyright (C) 2016 INRIA Saclay (France)" +__license__ = "GPL v3" + +print("#####################################################################") +print("MiniSimplexTree creation from insertion") + +""" Complex to build. + 1 3 + o---o + /X\ / + o---o o + 2 0 4 +""" + +triangle012 = [0, 1, 2] +edge03 = [0, 3] +edge13 = [1, 3] +vertex4 = [4] +mini_st = gudhi.MiniSimplexTree() +mini_st.insert(triangle012) +mini_st.insert(edge03) +mini_st.insert(edge13) +mini_st.insert(vertex4) + +# FIXME: Remove this line +mini_st.set_dimension(2) + +# initialize_filtration required before plain_homology +mini_st.initialize_filtration() + +print("plain_homology(2)=", mini_st.plain_homology(2)) + +edge02 = [0, 2] +if mini_st.find(edge02): + # Only coface is 012 + print("coface(edge02,1)=", mini_st.get_coface_tree(edge02, 1)) + +if mini_st.get_coface_tree(triangle012, 1) == []: + # Precondition: Check the simplex has no coface before removing it. + mini_st.remove_maximal_simplex(triangle012) + +# initialize_filtration required after removing +mini_st.initialize_filtration() + +print("filtered_tree after triangle012 removal =", mini_st.get_filtered_tree()) -- cgit v1.2.3