/* 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): Mathieu Carrière
*
* Copyright (C) 2018 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 .
*/
#define BOOST_TEST_DYN_LINK
#define BOOST_TEST_MODULE "kernel"
#include
#include // float comparison
#include
#include
#include
#include // std::max
#include
#include
#include
#include
#include
#include
using SW = Gudhi::Persistence_representations::Sliced_Wasserstein;
using PWG = Gudhi::Persistence_representations::Persistence_weighted_gaussian;
BOOST_AUTO_TEST_CASE(check_PWG) {
Persistence_diagram v1, v2; v1.emplace_back(0,1); v2.emplace_back(0,2);
PWG pwg1(v1, 1.0, 1000, Gudhi::Persistence_representations::arctan_weight(1,1)); PWG pwgex1(v1, 1.0, -1, Gudhi::Persistence_representations::arctan_weight(1,1));
PWG pwg2(v2, 1.0, 1000, Gudhi::Persistence_representations::arctan_weight(1,1)); PWG pwgex2(v2, 1.0, -1, Gudhi::Persistence_representations::arctan_weight(1,1));
BOOST_CHECK(std::abs(pwg1.compute_scalar_product(pwg2) - pwgex1.compute_scalar_product(pwgex2)) <= 1e-1);
}
BOOST_AUTO_TEST_CASE(check_SW) {
Persistence_diagram v1, v2; v1.emplace_back(0,1); v2.emplace_back(0,2);
SW sw1(v1, 1.0, 100); SW swex1(v1, 1.0, -1);
SW sw2(v2, 1.0, 100); SW swex2(v2, 1.0, -1);
BOOST_CHECK(std::abs(sw1.compute_scalar_product(sw2) - swex1.compute_scalar_product(swex2)) <= 1e-1);
}