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Diffstat (limited to 'src/Simplex_tree/concept/FiltrationValue.h')
| -rw-r--r-- | src/Simplex_tree/concept/FiltrationValue.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/Simplex_tree/concept/FiltrationValue.h b/src/Simplex_tree/concept/FiltrationValue.h new file mode 100644 index 00000000..6cf314fa --- /dev/null +++ b/src/Simplex_tree/concept/FiltrationValue.h @@ -0,0 +1,23 @@ +/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT. + * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details. + * Author(s): Clément Maria + * + * Copyright (C) 2014 Inria + * + * Modification(s): + * - YYYY/MM Author: Description of the modification + */ + +/** \brief Value type for a filtration function on a cell complex. + * + * A <EM>filtration</EM> 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); + }; |