From 55c7181126aa7defce38c9b82872d14223d4c1dd Mon Sep 17 00:00:00 2001 From: Gard Spreemann Date: Tue, 7 Feb 2017 17:33:01 +0100 Subject: Initial import of upstream's 1.3.1. --- concept/Simplex_tree/FiltrationValue.h | 35 ++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 concept/Simplex_tree/FiltrationValue.h (limited to 'concept/Simplex_tree/FiltrationValue.h') diff --git a/concept/Simplex_tree/FiltrationValue.h b/concept/Simplex_tree/FiltrationValue.h new file mode 100644 index 00000000..79ca06cc --- /dev/null +++ b/concept/Simplex_tree/FiltrationValue.h @@ -0,0 +1,35 @@ + /* 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): Clément Maria + * + * Copyright (C) 2014 INRIA Sophia Antipolis-Méditerranée (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 . + */ + +/** \brief Value type for a filtration function on a cell complex. + * + * A filtration of a cell complex (see FilteredComplex) is + * a function \f$f:\mathbf{K} \rightarrow \mathbb{R}\f$ satisfying \f$f(\tau)\leq + * f(\sigma)\f$ whenever \f$\tau \subseteq \sigma\f$. Ordering the simplices + * by increasing filtration values (breaking ties so as a simplex appears after + * its subsimplices of same filtration value) provides an indexing scheme + * (see IndexingTag). + */ + struct FiltrationValue { + /** \brief Operator < is a StrictWeakOrdering. */ + bool operator<(FiltrationValue f1, FiltrationValue f2); + }; -- cgit v1.2.3