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+/* 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): Pawel Dlotko
+ *
+ * Copyright (C) 2015 INRIA (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 <http://www.gnu.org/licenses/>.
+ */
+
+
+/** \brief The concept Vectorized_topological_data describes the requirements
+ * for a type to implement a container that allows vectorization.
+ */
+class Vectorized_topological_data
+{
+public:
+ /**
+ * There are various ways data can be verctorized. This function give us the number of functions for vectorization provided by a given class.
+ **/
+ size_t number_of_vectorize_functions();
+ /**
+ * This is a function to vectorize given container. The parameter of a function have to be between 0 and the value returned by number_of_vectorize_functions().
+ **/
+ std::vector<double> vectorize( int number_of_function );
+};
+