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-rw-r--r--src/Persistence_representations/utilities/CMakeLists.txt6
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/CMakeLists.txt63
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp65
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/compute_distance_of_persistence_heat_maps.cpp93
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/compute_scalar_product_of_persistence_heat_maps.cpp79
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_arctan_of_their_persistence.cpp84
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_distance_from_diagonal.cpp84
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_squared_diag_distance.cpp85
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/create_persistence_heat_maps.cpp80
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp81
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/plot_persistence_heat_map.cpp38
-rw-r--r--src/Persistence_representations/utilities/persistence_heat_maps/simple_diagram.txt.mps11
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/CMakeLists.txt46
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/compute_birth_death_range_in_persistence_diagram.cpp64
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/compute_bottleneck_distance.cpp95
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/compute_number_of_dominant_intervals.cpp55
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/plot_histogram_of_intervals_lengths.cpp72
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/plot_persistence_Betti_numbers.cpp87
-rw-r--r--src/Persistence_representations/utilities/persistence_intervals/plot_persistence_intervals.cpp54
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/CMakeLists.txt38
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/average_landscapes.cpp66
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp93
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/compute_scalar_product_of_landscapes.cpp79
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/create_landscapes.cpp59
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/plot_landscapes.cpp43
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/simple_diagram.txt.land13
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/CMakeLists.txt38
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp65
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp92
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp78
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp79
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp47
-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/simple_diagram.txt.g_land104
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/CMakeLists.txt38
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/average_persistence_vectors.cpp67
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/compute_distance_of_persistence_vectors.cpp94
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/compute_scalar_product_of_persistence_vectors.cpp80
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp63
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/plot_persistence_vectors.cpp44
-rw-r--r--src/Persistence_representations/utilities/persistence_vectors/simple_diagram.txt.vect1
40 files changed, 2523 insertions, 0 deletions
diff --git a/src/Persistence_representations/utilities/CMakeLists.txt b/src/Persistence_representations/utilities/CMakeLists.txt
new file mode 100644
index 00000000..66524666
--- /dev/null
+++ b/src/Persistence_representations/utilities/CMakeLists.txt
@@ -0,0 +1,6 @@
+add_subdirectory(persistence_heat_maps)
+add_subdirectory(persistence_intervals)
+add_subdirectory(persistence_landscapes)
+add_subdirectory(persistence_landscapes_on_grid)
+add_subdirectory(persistence_vectors)
+
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/CMakeLists.txt b/src/Persistence_representations/utilities/persistence_heat_maps/CMakeLists.txt
new file mode 100644
index 00000000..0dd63852
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/CMakeLists.txt
@@ -0,0 +1,63 @@
+cmake_minimum_required(VERSION 2.6)
+project(Persistence_representations_heat_maps_utilities)
+
+file(COPY "${CMAKE_SOURCE_DIR}/data/persistence_diagram/simple_diagram.txt" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/")
+
+add_executable ( create_persistence_heat_maps create_persistence_heat_maps.cpp )
+target_link_libraries(create_persistence_heat_maps ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME create_persistence_heat_maps COMMAND $<TARGET_FILE:create_persistence_heat_maps>
+ "10" "-1" "-1" "4" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+
+add_executable ( create_pssk create_pssk.cpp )
+target_link_libraries(create_pssk ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME create_pssk COMMAND $<TARGET_FILE:create_pssk>
+ "10" "-1" "-1" "4" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( create_p_h_m_weighted_by_distance_from_diagonal create_p_h_m_weighted_by_distance_from_diagonal.cpp )
+target_link_libraries(create_p_h_m_weighted_by_distance_from_diagonal ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME create_p_h_m_weighted_by_distance_from_diagonal COMMAND $<TARGET_FILE:create_p_h_m_weighted_by_distance_from_diagonal>
+ "10" "-1" "-1" "4" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( create_p_h_m_weighted_by_squared_diag_distance create_p_h_m_weighted_by_squared_diag_distance.cpp )
+target_link_libraries(create_p_h_m_weighted_by_squared_diag_distance ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME create_p_h_m_weighted_by_squared_diag_distance COMMAND $<TARGET_FILE:create_p_h_m_weighted_by_squared_diag_distance>
+ "10" "-1" "-1" "4" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( create_p_h_m_weighted_by_arctan_of_their_persistence create_p_h_m_weighted_by_arctan_of_their_persistence.cpp )
+target_link_libraries(create_p_h_m_weighted_by_arctan_of_their_persistence ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME create_p_h_m_weighted_by_arctan_of_their_persistence COMMAND $<TARGET_FILE:create_p_h_m_weighted_by_arctan_of_their_persistence>
+ "10" "-1" "-1" "4" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( average_persistence_heat_maps average_persistence_heat_maps.cpp )
+target_link_libraries(average_persistence_heat_maps ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME average_persistence_heat_maps COMMAND $<TARGET_FILE:average_persistence_heat_maps>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( plot_persistence_heat_map plot_persistence_heat_map.cpp )
+target_link_libraries(plot_persistence_heat_map ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_persistence_heat_map COMMAND $<TARGET_FILE:plot_persistence_heat_map>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( compute_distance_of_persistence_heat_maps compute_distance_of_persistence_heat_maps.cpp )
+target_link_libraries(compute_distance_of_persistence_heat_maps ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_distance_of_persistence_heat_maps COMMAND $<TARGET_FILE:compute_distance_of_persistence_heat_maps>
+ "1"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( compute_scalar_product_of_persistence_heat_maps compute_scalar_product_of_persistence_heat_maps.cpp )
+target_link_libraries(compute_scalar_product_of_persistence_heat_maps ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_scalar_product_of_persistence_heat_maps COMMAND $<TARGET_FILE:compute_scalar_product_of_persistence_heat_maps>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp
new file mode 100644
index 00000000..4e81375a
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/average_persistence_heat_maps.cpp
@@ -0,0 +1,65 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <vector>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes average persistence landscape of persistence landscapes created based on "
+ "persistence diagrams provided as an input. Please call this program with the names of files with "
+ "persistence diagrams \n";
+ std::vector<const char*> filenames;
+
+ if (argc == 1) {
+ std::cout << "No input files given, the program will now terminate \n";
+ return 1;
+ }
+
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence landscapes...\n";
+ std::vector<Persistence_heat_maps*> maps;
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Persistence_heat_maps* l = new Persistence_heat_maps;
+ l->load_from_file(filenames[i]);
+ maps.push_back(l);
+ }
+
+ Persistence_heat_maps av;
+ av.compute_average(maps);
+
+ av.print_to_file("average.mps");
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ delete maps[i];
+ }
+
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/compute_distance_of_persistence_heat_maps.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/compute_distance_of_persistence_heat_maps.cpp
new file mode 100644
index 00000000..befb0837
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/compute_distance_of_persistence_heat_maps.cpp
@@ -0,0 +1,93 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes distance of persistence heat maps stored in a file (the file needs to be created "
+ "beforehand). \n";
+ std::cout << "The first parameter of a program is an integer p. The program compute L^p distance of the two heat "
+ "maps. For L^infty distance choose p = -1. \n";
+ std::cout << "The remaining parameters of this program are names of files with persistence heat maps.\n";
+
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
+
+ int pp = atoi(argv[1]);
+ double p = std::numeric_limits<double>::max();
+ if (pp != -1) {
+ p = pp;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_heat_maps> maps;
+ maps.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Persistence_heat_maps l;
+ l.load_from_file(filenames[file_no]);
+ maps.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > distance(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ distance[i] = v;
+ }
+
+ // and now we can compute the distances:
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ for (size_t j = i; j != filenames.size(); ++j) {
+ distance[i][j] = distance[j][i] = maps[i].distance(maps[j], p);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("distance");
+ for (size_t i = 0; i != distance.size(); ++i) {
+ for (size_t j = 0; j != distance.size(); ++j) {
+ std::cout << distance[i][j] << " ";
+ out << distance[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/compute_scalar_product_of_persistence_heat_maps.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/compute_scalar_product_of_persistence_heat_maps.cpp
new file mode 100644
index 00000000..c684a336
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/compute_scalar_product_of_persistence_heat_maps.cpp
@@ -0,0 +1,79 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes scalar product of persistence landscapes stored in a file (the file needs to be "
+ "created beforehand). \n";
+ std::cout << "The parameters of this programs are names of files with persistence landscapes.\n";
+
+ std::vector<const char*> filenames;
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_heat_maps> maps;
+ maps.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Persistence_heat_maps l;
+ l.load_from_file(filenames[file_no]);
+ maps.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > scalar_product(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ scalar_product[i] = v;
+ }
+
+ // and now we can compute the scalar product:
+ for (size_t i = 0; i != maps.size(); ++i) {
+ for (size_t j = i; j != maps.size(); ++j) {
+ scalar_product[i][j] = scalar_product[j][i] = maps[i].compute_scalar_product(maps[j]);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("scalar_product");
+ for (size_t i = 0; i != scalar_product.size(); ++i) {
+ for (size_t j = 0; j != scalar_product.size(); ++j) {
+ std::cout << scalar_product[i][j] << " ";
+ out << scalar_product[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_arctan_of_their_persistence.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_arctan_of_their_persistence.cpp
new file mode 100644
index 00000000..2bf185a3
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_arctan_of_their_persistence.cpp
@@ -0,0 +1,84 @@
+/* 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) 2016 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/>.
+*/
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using arc_tan_of_persistence_of_point = Gudhi::Persistence_representations::arc_tan_of_persistence_of_point;
+using Persistence_heat_maps =
+ Gudhi::Persistence_representations::Persistence_heat_maps<arc_tan_of_persistence_of_point>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence heat map of diagrams provided as an input. The Gaussian kernels are "
+ "weighted by the arc tangential of their persistence.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cerr << "The fourth parameter is an integer, the standard deviation of a Gaussian kernel expressed in a number "
+ "of pixels \n";
+ std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the "
+ "persistence heat maps.";
+ std::cout << "If our input files contain persistence pairs of various dimension, as a fifth parameter of the "
+ "procedure please provide the dimension of persistence you want to use.";
+ std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ size_t stdiv = atof(argv[4]);
+
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = atoi(argv[5]);
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 6; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence heat maps...\n";
+ std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
+ Persistence_heat_maps l(filenames[i], filter, false, size_of_grid, min_, max_, dimension);
+
+ std::stringstream ss;
+ ss << filenames[i] << ".mps";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_distance_from_diagonal.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_distance_from_diagonal.cpp
new file mode 100644
index 00000000..ec9477f1
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_distance_from_diagonal.cpp
@@ -0,0 +1,84 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using distance_from_diagonal_scaling = Gudhi::Persistence_representations::distance_from_diagonal_scaling;
+using Persistence_heat_maps =
+ Gudhi::Persistence_representations::Persistence_heat_maps<distance_from_diagonal_scaling>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence heat map of diagrams provided as an input. The Gaussian kernels are "
+ "weighted by the distance of a center from the diagonal.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cerr << "The fourth parameter is an integer, the standard deviation of a Gaussian kernel expressed in a number "
+ "of pixels \n";
+ std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the "
+ "persistence heat maps.";
+ std::cout << "If our input files contain persistence pairs of various dimension, as a fifth parameter of the "
+ "procedure please provide the dimension of persistence you want to use.";
+ std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ size_t stdiv = atof(argv[4]);
+
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = atoi(argv[5]);
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 6; i != argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence heat maps...\n";
+ std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
+ Persistence_heat_maps l(filenames[i], filter, false, size_of_grid, min_, max_, dimension);
+
+ std::stringstream ss;
+ ss << filenames[i] << ".mps";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_squared_diag_distance.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_squared_diag_distance.cpp
new file mode 100644
index 00000000..ffec8b3d
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_p_h_m_weighted_by_squared_diag_distance.cpp
@@ -0,0 +1,85 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using squared_distance_from_diagonal_scaling =
+ Gudhi::Persistence_representations::squared_distance_from_diagonal_scaling;
+using Persistence_heat_maps =
+ Gudhi::Persistence_representations::Persistence_heat_maps<squared_distance_from_diagonal_scaling>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence heat map of diagrams provided as an input. The Gaussian kernels are "
+ "weighted by the square of distance of a center from the diagonal.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cerr << "The fourth parameter is an integer, the standard deviation of a Gaussian kernel expressed in a number "
+ "of pixels \n";
+ std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the "
+ "persistence heat maps.";
+ std::cout << "If our input files contain persistence pairs of various dimension, as a fifth parameter of the "
+ "procedure please provide the dimension of persistence you want to use.";
+ std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ size_t stdiv = atof(argv[4]);
+
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = atoi(argv[5]);
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 6; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence heat maps...\n";
+ std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
+ Persistence_heat_maps l(filenames[i], filter, false, size_of_grid, min_, max_, dimension);
+
+ std::stringstream ss;
+ ss << filenames[i] << ".mps";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_persistence_heat_maps.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_persistence_heat_maps.cpp
new file mode 100644
index 00000000..db2f0008
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_persistence_heat_maps.cpp
@@ -0,0 +1,80 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence heat map of diagrams provided as an input.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cerr << "The fourth parameter is an integer, the standard deviation of a Gaussian kernel expressed in a number "
+ "of pixels \n";
+
+ std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the "
+ "persistence heat maps.";
+ std::cout << "If your input file contains persistence pairs of various dimension, as a fifth parameter of the "
+ "procedure please provide the dimension of persistence you want to use.";
+ std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ size_t stdiv = atof(argv[4]);
+
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = atoi(argv[5]);
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+ std::vector<const char*> filenames;
+ for (int i = 6; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence heat maps...\n";
+ std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
+ Persistence_heat_maps l(filenames[i], filter, false, size_of_grid, min_, max_, dimension);
+
+ std::stringstream ss;
+ ss << filenames[i] << ".mps";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp
new file mode 100644
index 00000000..6aefbb00
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/create_pssk.cpp
@@ -0,0 +1,81 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/PSSK.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using PSSK = Gudhi::Persistence_representations::PSSK;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates PSSK of diagrams provided as an input.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cerr << "The fourth parameter is an integer, the standard deviation of a Gaussian kernel expressed in a number "
+ "of pixels \n";
+ std::cout << "The fifth parameter of this program is a dimension of persistence that will be used in creation of the "
+ "persistence heat maps.";
+ std::cout << "If our input files contain persistence pairs of various dimension, as a fifth parameter of the "
+ "procedure please provide the dimension of persistence you want to use.";
+ std::cout << "If in your file there are only birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ size_t stdiv = atof(argv[4]);
+
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = atoi(argv[5]);
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 6; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence heat maps...\n";
+ std::vector<std::vector<double> > filter = Gudhi::Persistence_representations::create_Gaussian_filter(stdiv, 1);
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating a heat map based on a file : " << filenames[i] << std::endl;
+ PSSK l(filenames[i], filter, size_of_grid, min_, max_, dimension);
+
+ std::stringstream ss;
+ ss << filenames[i] << ".pssk";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/plot_persistence_heat_map.cpp b/src/Persistence_representations/utilities/persistence_heat_maps/plot_persistence_heat_map.cpp
new file mode 100644
index 00000000..a7c9f2d8
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/plot_persistence_heat_map.cpp
@@ -0,0 +1,38 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_heat_maps.h>
+
+#include <iostream>
+#include <sstream>
+
+using constant_scaling_function = Gudhi::Persistence_representations::constant_scaling_function;
+using Persistence_heat_maps = Gudhi::Persistence_representations::Persistence_heat_maps<constant_scaling_function>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program plot persistence landscape stored in a file (the file needs to be created beforehand). "
+ "Please call the code with the name of a landscape file \n";
+ Persistence_heat_maps l;
+ l.load_from_file(argv[1]);
+ l.plot(argv[1]);
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_heat_maps/simple_diagram.txt.mps b/src/Persistence_representations/utilities/persistence_heat_maps/simple_diagram.txt.mps
new file mode 100644
index 00000000..b7643887
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_heat_maps/simple_diagram.txt.mps
@@ -0,0 +1,11 @@
+0.93 8.0707
+0.0492104 0.03889 0.0190956 0.00603584 0.00131569 0.000120934 2.10152e-05 0 0 0
+0.0650745 0.0539306 0.0296488 0.011745 0.00357642 0.000695928 0.000120934 0 0 0
+0.0572665 0.0559446 0.0409942 0.0230905 0.00937173 0.00242903 0.000422102 0 0 0
+0.0409942 0.0559656 0.0573874 0.0408475 0.0192639 0.00628964 0.00178718 0.000422102 0.000120934 2.10152e-05
+0.0296488 0.0540515 0.0657704 0.0519133 0.0283092 0.0132056 0.00628964 0.00242903 0.000695928 0.000120934
+0.0190956 0.0393121 0.0516395 0.0465955 0.0359385 0.0283092 0.0192639 0.00937173 0.00357642 0.00131569
+0.00847814 0.0188418 0.0281882 0.0358964 0.0465955 0.0519133 0.0408475 0.0230905 0.011745 0.00603584
+0.00242903 0.00628964 0.0132056 0.0281882 0.0516395 0.0657704 0.0573874 0.0409942 0.0296488 0.0190956
+0.000422102 0.00178718 0.00628964 0.0188418 0.0393121 0.0540515 0.0559656 0.0559446 0.0539306 0.03889
+0 0.000422102 0.00242903 0.00847814 0.0190956 0.0296488 0.0409942 0.0572665 0.0650745 0.0492104
diff --git a/src/Persistence_representations/utilities/persistence_intervals/CMakeLists.txt b/src/Persistence_representations/utilities/persistence_intervals/CMakeLists.txt
new file mode 100644
index 00000000..105b7efb
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/CMakeLists.txt
@@ -0,0 +1,46 @@
+cmake_minimum_required(VERSION 2.6)
+project(Persistence_representations_intervals_utilities)
+
+file(COPY "${CMAKE_SOURCE_DIR}/data/persistence_diagram/simple_diagram.txt" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/")
+
+add_executable ( plot_persistence_intervals plot_persistence_intervals.cpp )
+target_link_libraries( plot_persistence_intervals ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_persistence_intervals COMMAND $<TARGET_FILE:plot_persistence_intervals>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( compute_birth_death_range_in_persistence_diagram compute_birth_death_range_in_persistence_diagram.cpp )
+target_link_libraries( compute_birth_death_range_in_persistence_diagram ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_birth_death_range_in_persistence_diagram COMMAND $<TARGET_FILE:compute_birth_death_range_in_persistence_diagram>
+ "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( compute_number_of_dominant_intervals compute_number_of_dominant_intervals.cpp )
+target_link_libraries( compute_number_of_dominant_intervals ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_number_of_dominant_intervals COMMAND $<TARGET_FILE:compute_number_of_dominant_intervals>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt" "-1" "2")
+
+add_executable ( plot_histogram_of_intervals_lengths plot_histogram_of_intervals_lengths.cpp )
+target_link_libraries( plot_histogram_of_intervals_lengths ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_histogram_of_intervals_lengths COMMAND $<TARGET_FILE:plot_histogram_of_intervals_lengths>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt" "2")
+
+add_executable ( plot_persistence_Betti_numbers plot_persistence_Betti_numbers.cpp )
+target_link_libraries( plot_persistence_Betti_numbers ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_persistence_Betti_numbers COMMAND $<TARGET_FILE:plot_persistence_Betti_numbers>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+if (NOT CGAL_WITH_EIGEN3_VERSION VERSION_LESS 4.8.1)
+ add_executable ( compute_bottleneck_distance compute_bottleneck_distance.cpp )
+ target_link_libraries( compute_bottleneck_distance ${Boost_SYSTEM_LIBRARY})
+ if (TBB_FOUND)
+ target_link_libraries(compute_bottleneck_distance ${TBB_LIBRARIES})
+ endif(TBB_FOUND)
+
+ add_test(NAME compute_bottleneck_distance COMMAND $<TARGET_FILE:compute_bottleneck_distance>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+endif (NOT CGAL_WITH_EIGEN3_VERSION VERSION_LESS 4.8.1)
diff --git a/src/Persistence_representations/utilities/persistence_intervals/compute_birth_death_range_in_persistence_diagram.cpp b/src/Persistence_representations/utilities/persistence_intervals/compute_birth_death_range_in_persistence_diagram.cpp
new file mode 100644
index 00000000..66fa31ca
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/compute_birth_death_range_in_persistence_diagram.cpp
@@ -0,0 +1,64 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/reader_utils.h>
+#include <gudhi/Persistence_intervals.h>
+
+#include <iostream>
+#include <vector>
+#include <limits>
+#include <utility>
+
+using Persistence_intervals = Gudhi::Persistence_representations::Persistence_intervals;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute the range of birth and death times of persistence pairs in diagrams provided as "
+ "an input. \n";
+ std::cout << "The first parameter of the program is the dimension of persistence to be used. If your file contains ";
+ std::cout << "the information about dimension of persistence pairs, please provide here the dimension of persistence "
+ "pairs you want to use. If your input files consist only ";
+ std::cout << "of birth-death pairs, please set this first parameter to -1 \n";
+ std::cout << "The remaining parameters of the program are the names of files with persistence diagrams. \n";
+
+ int dim = atoi(argv[1]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ double min_ = std::numeric_limits<double>::max();
+ double max_ = -std::numeric_limits<double>::max();
+
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ std::cout << "Creating diagram based on a file : " << filenames[file_no] << std::endl;
+ Persistence_intervals p(filenames[file_no], dimension);
+ std::pair<double, double> min_max_ = p.get_x_range();
+ if (min_max_.first < min_) min_ = min_max_.first;
+ if (min_max_.second > max_) max_ = min_max_.second;
+ }
+ std::cout << "Birth-death range : min: " << min_ << ", max: " << max_ << std::endl;
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_intervals/compute_bottleneck_distance.cpp b/src/Persistence_representations/utilities/persistence_intervals/compute_bottleneck_distance.cpp
new file mode 100644
index 00000000..0b1b526d
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/compute_bottleneck_distance.cpp
@@ -0,0 +1,95 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_intervals_with_distances.h>
+#include <gudhi/read_persistence_from_file.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Persistence_intervals_with_distances = Gudhi::Persistence_representations::Persistence_intervals_with_distances;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute the bottleneck distance of persistence diagrams stored in a files. \n";
+ std::cout << "The first parameter of the program is the dimension of persistence to be used to construct persistence "
+ "landscapes. If your file contains ";
+ std::cout << "the information about dimension of persistence pairs, please provide here the dimension of persistence "
+ "pairs you want to use. If your input files consist only ";
+ std::cout << "of birth-death pairs, please set this first parameter to -1 \n";
+ std::cout << "The remaining parameters of this programs are names of files with persistence diagrams.\n";
+
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
+
+ int dim = atoi(argv[1]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ // reading the persistence intervals:
+ std::vector<Persistence_intervals_with_distances> persistence_intervals;
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Persistence_intervals_with_distances pers(filenames[i], dimension);
+ persistence_intervals.push_back(pers);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > distance(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ distance[i] = v;
+ }
+
+ // and now we can compute the distances:
+ for (size_t i = 0; i != persistence_intervals.size(); ++i) {
+ for (size_t j = i + 1; j != persistence_intervals.size(); ++j) {
+ distance[i][j] = distance[j][i] = persistence_intervals[i].distance(persistence_intervals[j]);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("distance");
+ for (size_t i = 0; i != distance.size(); ++i) {
+ for (size_t j = 0; j != distance.size(); ++j) {
+ std::cout << distance[i][j] << " ";
+ out << distance[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_intervals/compute_number_of_dominant_intervals.cpp b/src/Persistence_representations/utilities/persistence_intervals/compute_number_of_dominant_intervals.cpp
new file mode 100644
index 00000000..1286ca57
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/compute_number_of_dominant_intervals.cpp
@@ -0,0 +1,55 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/reader_utils.h>
+#include <gudhi/Persistence_intervals.h>
+
+#include <iostream>
+#include <limits>
+#include <vector>
+#include <utility>
+
+using Persistence_intervals = Gudhi::Persistence_representations::Persistence_intervals;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute the dominant intervals. A number of intervals to be displayed is a parameter of "
+ "this program. \n";
+ if (argc != 4) {
+ std::cout << "To run this program, please provide the name of a file with persistence diagram, dimension of "
+ "intervals that should be taken into account (if your file contains only persistence pairs in a "
+ "single dimension, set it up to -1) and number of dominant intervals you would like to get \n";
+ return 1;
+ }
+ int dim = atoi(argv[2]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+ Persistence_intervals p(argv[1], dimension);
+ std::vector<std::pair<double, double> > dominant_intervals = p.dominant_intervals(atoi(argv[3]));
+ std::cout << "Here are the dominant intervals : " << std::endl;
+ for (size_t i = 0; i != dominant_intervals.size(); ++i) {
+ std::cout << " " << dominant_intervals[i].first << "," << dominant_intervals[i].second << " " << std::endl;
+ }
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_intervals/plot_histogram_of_intervals_lengths.cpp b/src/Persistence_representations/utilities/persistence_intervals/plot_histogram_of_intervals_lengths.cpp
new file mode 100644
index 00000000..d68f4584
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/plot_histogram_of_intervals_lengths.cpp
@@ -0,0 +1,72 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/reader_utils.h>
+#include <gudhi/Persistence_intervals.h>
+
+#include <iostream>
+#include <vector>
+#include <limits>
+#include <utility>
+
+using Persistence_intervals = Gudhi::Persistence_representations::Persistence_intervals;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute a histogram of barcode's length. A number of bins in the histogram is a parameter "
+ "of this program. \n";
+ if (argc != 3) {
+ std::cout << "To run this program, please provide the name of a file with persistence diagram and number of "
+ "dominant intervals you would like to get \n";
+ std::cout << "The third parameter of a program is the dimension of the persistence that is to be used. If your "
+ "file contains only birth-death pairs, you can skip this parameter\n";
+ return 1;
+ }
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = -1;
+ if (argc > 2) {
+ dim = atoi(argv[2]);
+ }
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ Persistence_intervals p(argv[1], dimension);
+ std::vector<std::pair<double, double> > dominant_intervals = p.dominant_intervals(atoi(argv[2]));
+ std::vector<size_t> histogram = p.histogram_of_lengths(10);
+
+ std::stringstream gnuplot_script;
+ gnuplot_script << argv[1] << "_Gnuplot_script";
+ std::ofstream out;
+ out.open(gnuplot_script.str().c_str());
+
+ out << "set style data histogram" << std::endl;
+ out << "set style histogram cluster gap 1" << std::endl;
+ out << "set style fill solid border -1" << std::endl;
+ out << "plot '-' notitle" << std::endl;
+ for (size_t i = 0; i != histogram.size(); ++i) {
+ out << histogram[i] << std::endl;
+ }
+ out << std::endl;
+ std::cout << "To visualize, open gnuplot and type: load \'" << gnuplot_script.str().c_str() << "\'" << std::endl;
+ out.close();
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_Betti_numbers.cpp b/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_Betti_numbers.cpp
new file mode 100644
index 00000000..da2b9319
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_Betti_numbers.cpp
@@ -0,0 +1,87 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/reader_utils.h>
+#include <gudhi/Persistence_intervals.h>
+
+#include <iostream>
+#include <vector>
+#include <limits>
+#include <utility>
+
+using Persistence_intervals = Gudhi::Persistence_representations::Persistence_intervals;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute a plot of persistence Betti numbers. The input parameter is a file with "
+ "persistence intervals. \n";
+ std::cout << "The second optional parameter of a program is the dimension of the persistence that is to be used. If "
+ "your file contains only birth-death pairs, you can skip this parameter\n";
+ if (argc < 2) {
+ std::cout << "To run this program, please provide the name of a file with persistence diagram and number of "
+ "dominant intervals you would like to get \n";
+ return 1;
+ }
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = -1;
+ if (argc > 2) {
+ dim = atoi(argv[2]);
+ }
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::stringstream gnuplot_script;
+ gnuplot_script << argv[1] << "_Gnuplot_script";
+ std::ofstream out;
+ out.open(gnuplot_script.str().c_str());
+
+ Persistence_intervals p(argv[1], dimension);
+ std::vector<std::pair<double, size_t> > pbns = p.compute_persistent_betti_numbers();
+
+ // set up the ranges so that we see the image well.
+ double xRangeBegin = pbns[0].first;
+ double xRangeEnd = pbns[pbns.size() - 1].first;
+ double yRangeBegin = 0;
+ double yRangeEnd = 0;
+ for (size_t i = 0; i != pbns.size(); ++i) {
+ if (pbns[i].second > yRangeEnd) yRangeEnd = pbns[i].second;
+ }
+ xRangeBegin -= (xRangeEnd - xRangeBegin) / 100.0;
+ xRangeEnd += (xRangeEnd - xRangeBegin) / 100.0;
+ yRangeEnd += yRangeEnd / 100;
+
+ out << "set xrange [" << xRangeBegin << " : " << xRangeEnd << "]" << std::endl;
+ out << "set yrange [" << yRangeBegin << " : " << yRangeEnd << "]" << std::endl;
+ out << "plot '-' using 1:2 notitle with lp " << std::endl;
+ double previous_y = 0;
+ for (size_t i = 0; i != pbns.size(); ++i) {
+ out << pbns[i].first << " " << previous_y << std::endl;
+ out << pbns[i].first << " " << pbns[i].second << std::endl;
+ previous_y = pbns[i].second;
+ }
+ out << std::endl;
+ out.close();
+
+ std::cout << "To visualize, open gnuplot and type: load \'" << gnuplot_script.str().c_str() << "\'" << std::endl;
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_intervals.cpp b/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_intervals.cpp
new file mode 100644
index 00000000..e7d29e84
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_intervals/plot_persistence_intervals.cpp
@@ -0,0 +1,54 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/reader_utils.h>
+#include <gudhi/Persistence_intervals.h>
+#include <gudhi/read_persistence_from_file.h>
+
+#include <iostream>
+#include <limits>
+#include <vector>
+#include <utility>
+
+using Persistence_intervals = Gudhi::Persistence_representations::Persistence_intervals;
+
+int main(int argc, char** argv) {
+ if (argc < 2) {
+ std::cout << "To run this program, please provide the name of a file with persistence diagram \n";
+ std::cout << "The second optional parameter of a program is the dimension of the persistence that is to be used. "
+ "If your file contains only birth-death pairs, you can skip this parameter\n";
+ return 1;
+ }
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ int dim = -1;
+ if (argc > 2) {
+ dim = atoi(argv[2]);
+ }
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+ std::vector<std::pair<double, double> > intervals =
+ Gudhi::Persistence_representations::read_persistence_intervals_in_one_dimension_from_file(argv[1], dimension);
+ Persistence_intervals b(intervals);
+ b.plot(argv[1]);
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/CMakeLists.txt b/src/Persistence_representations/utilities/persistence_landscapes/CMakeLists.txt
new file mode 100644
index 00000000..baf8de3c
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.6)
+project(Persistence_representations_lanscapes_utilities)
+
+file(COPY "${CMAKE_SOURCE_DIR}/data/persistence_diagram/simple_diagram.txt" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/")
+
+add_executable ( create_landscapes create_landscapes.cpp )
+target_link_libraries(create_landscapes ${Boost_SYSTEM_LIBRARY})
+
+# Will create simple_diagram.txt.land
+add_test(NAME create_landscapes COMMAND $<TARGET_FILE:create_landscapes>
+ "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( average_landscapes average_landscapes.cpp )
+target_link_libraries(average_landscapes ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME average_landscapes COMMAND $<TARGET_FILE:average_landscapes>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( plot_landscapes plot_landscapes.cpp )
+target_link_libraries(plot_landscapes ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_landscapes COMMAND $<TARGET_FILE:plot_landscapes>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( compute_distance_of_landscapes compute_distance_of_landscapes.cpp )
+target_link_libraries(compute_distance_of_landscapes ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_distance_of_landscapes COMMAND $<TARGET_FILE:compute_distance_of_landscapes>
+ "1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.land"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.land")
+
+add_executable ( compute_scalar_product_of_landscapes compute_scalar_product_of_landscapes.cpp )
+target_link_libraries(compute_scalar_product_of_landscapes ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_scalar_product_of_landscapes COMMAND $<TARGET_FILE:compute_scalar_product_of_landscapes>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.land"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.land")
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/average_landscapes.cpp b/src/Persistence_representations/utilities/persistence_landscapes/average_landscapes.cpp
new file mode 100644
index 00000000..526130e9
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/average_landscapes.cpp
@@ -0,0 +1,66 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape.h>
+
+#include <iostream>
+#include <vector>
+
+using Persistence_landscape = Gudhi::Persistence_representations::Persistence_landscape;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes average persistence landscape of persistence landscapes created based on "
+ "persistence diagrams provided as an input (you must create them first).\n";
+ std::cout << "Please call this program with the names of files with persistence landscapes. The program will create "
+ "a persistence landscape which will be their average \n";
+ std::vector<const char*> filenames;
+
+ if (argc == 1) {
+ std::cout << "No input files given, the program will now terminate \n";
+ return 1;
+ }
+
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence landscapes...\n";
+ std::vector<Persistence_landscape*> lands;
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Persistence_landscape* l = new Persistence_landscape;
+ l->load_landscape_from_file(filenames[i]);
+ lands.push_back(l);
+ }
+
+ Persistence_landscape av;
+ av.compute_average(lands);
+
+ av.print_to_file("average.land");
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ delete lands[i];
+ }
+
+ std::cout << "Done \n";
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp b/src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp
new file mode 100644
index 00000000..b3881d6a
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp
@@ -0,0 +1,93 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Persistence_landscape = Gudhi::Persistence_representations::Persistence_landscape;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute distance of persistence landscapes stored in a file (the file needs to be created "
+ "beforehand). \n";
+ std::cout << "The first parameter of a program is an integer p. The program compute L^p distance of the given "
+ "landscapes. For L^infty distance choose p = -1. \n";
+ std::cout << "The remaining parameters of this programs are names of files with persistence landscapes.";
+
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
+
+ int pp = atoi(argv[1]);
+ double p = std::numeric_limits<double>::max();
+ if (pp != -1) {
+ p = pp;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_landscape> landscaspes;
+ landscaspes.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ std::cout << "Loading persistence landscape from a file : " << filenames[file_no] << std::endl;
+ Persistence_landscape l;
+ l.load_landscape_from_file(filenames[file_no]);
+ landscaspes.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > distance(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ distance[i] = v;
+ }
+
+ // and now we can compute the distances:
+ for (size_t i = 0; i != landscaspes.size(); ++i) {
+ for (size_t j = i; j != landscaspes.size(); ++j) {
+ distance[i][j] = distance[j][i] = compute_distance_of_landscapes(landscaspes[i], landscaspes[j], p);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("distance");
+ for (size_t i = 0; i != distance.size(); ++i) {
+ for (size_t j = 0; j != distance.size(); ++j) {
+ std::cout << distance[i][j] << " ";
+ out << distance[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/compute_scalar_product_of_landscapes.cpp b/src/Persistence_representations/utilities/persistence_landscapes/compute_scalar_product_of_landscapes.cpp
new file mode 100644
index 00000000..8dad7b4d
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/compute_scalar_product_of_landscapes.cpp
@@ -0,0 +1,79 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape.h>
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+using Persistence_landscape = Gudhi::Persistence_representations::Persistence_landscape;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute scalar product of persistence landscapes stored in a file (the file needs to be "
+ "created beforehand). \n";
+ std::cout << "The parameters of this programs are names of files with persistence landscapes.\n";
+
+ std::vector<const char*> filenames;
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_landscape> landscaspes;
+ landscaspes.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ std::cout << "Reading persistence landscape from a file : " << filenames[file_no] << std::endl;
+ Persistence_landscape l;
+ l.load_landscape_from_file(filenames[file_no]);
+ landscaspes.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > scalar_product(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ scalar_product[i] = v;
+ }
+
+ // and now we can compute the scalar product:
+ for (size_t i = 0; i != landscaspes.size(); ++i) {
+ for (size_t j = i; j != landscaspes.size(); ++j) {
+ scalar_product[i][j] = scalar_product[j][i] = compute_inner_product(landscaspes[i], landscaspes[j]);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("scalar_product");
+ for (size_t i = 0; i != scalar_product.size(); ++i) {
+ for (size_t j = 0; j != scalar_product.size(); ++j) {
+ std::cout << scalar_product[i][j] << " ";
+ out << scalar_product[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/create_landscapes.cpp b/src/Persistence_representations/utilities/persistence_landscapes/create_landscapes.cpp
new file mode 100644
index 00000000..325081d1
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/create_landscapes.cpp
@@ -0,0 +1,59 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape.h>
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <limits>
+
+using Persistence_landscape = Gudhi::Persistence_representations::Persistence_landscape;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence landscapes of diagrams provided as an input. \n";
+ std::cout << "The first parameter of the program is the dimension of persistence to be used to construct persistence "
+ "landscapes. If your file contains ";
+ std::cout << "the information about dimension of persistence pairs, please provide here the dimension of persistence "
+ "pairs you want to use. If your input files consist only ";
+ std::cout << "of birth-death pairs, please set this first parameter to -1 \n";
+ std::cout << "The remaining parameters of the program are the names of files with persistence diagrams. \n";
+ std::vector<const char*> filenames;
+ int dim = atoi(argv[1]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence landscapes...\n";
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Persistence_landscape l(filenames[i], dimension);
+ std::stringstream ss;
+ ss << filenames[i] << ".land";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/plot_landscapes.cpp b/src/Persistence_representations/utilities/persistence_landscapes/plot_landscapes.cpp
new file mode 100644
index 00000000..ebdb20a1
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/plot_landscapes.cpp
@@ -0,0 +1,43 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape.h>
+
+#include <iostream>
+#include <sstream>
+
+using Persistence_landscape = Gudhi::Persistence_representations::Persistence_landscape;
+
+int main(int argc, char** argv) {
+ std::cout << "This program plot persistence landscape stored in a file (the file needs to be created beforehand). "
+ "Please call the code with the name of a landscape file \n";
+ Persistence_landscape l;
+ l.load_landscape_from_file(argv[1]);
+
+ std::stringstream ss;
+ ss << argv[1] << "_gnuplot_script";
+ l.plot(ss.str().c_str());
+
+ std::cout << "Done \n";
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes/simple_diagram.txt.land b/src/Persistence_representations/utilities/persistence_landscapes/simple_diagram.txt.land
new file mode 100644
index 00000000..b99d2f62
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes/simple_diagram.txt.land
@@ -0,0 +1,13 @@
+#lambda_0
+1 0
+1.5 0.5
+2 0
+3 0
+3.5 0.5
+4 0
+5 0
+5.5 0.5
+6 0
+7 0
+7.5 0.5
+8 0
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/CMakeLists.txt b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/CMakeLists.txt
new file mode 100644
index 00000000..55a4fd50
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.6)
+project(Persistence_representations_lanscapes_on_grid_utilities)
+
+file(COPY "${CMAKE_SOURCE_DIR}/data/persistence_diagram/simple_diagram.txt" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/")
+
+add_executable ( create_landscapes_on_grid create_landscapes_on_grid.cpp )
+target_link_libraries(create_landscapes_on_grid ${Boost_SYSTEM_LIBRARY})
+
+# Will create simple_diagram.txt.land
+add_test(NAME create_landscapes_on_grid COMMAND $<TARGET_FILE:create_landscapes_on_grid>
+ "100" "-1" "-1" "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( average_landscapes_on_grid average_landscapes_on_grid.cpp )
+target_link_libraries(average_landscapes_on_grid ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME average_landscapes_on_grid COMMAND $<TARGET_FILE:average_landscapes_on_grid>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land")
+
+add_executable ( plot_landscapes_on_grid plot_landscapes_on_grid.cpp )
+target_link_libraries(plot_landscapes_on_grid ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_landscapes_on_grid COMMAND $<TARGET_FILE:plot_landscapes_on_grid>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land")
+
+add_executable ( compute_distance_of_landscapes_on_grid compute_distance_of_landscapes_on_grid.cpp )
+target_link_libraries(compute_distance_of_landscapes_on_grid ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_distance_of_landscapes_on_grid COMMAND $<TARGET_FILE:compute_distance_of_landscapes_on_grid>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land")
+
+add_executable ( compute_scalar_product_of_landscapes_on_grid compute_scalar_product_of_landscapes_on_grid.cpp )
+target_link_libraries(compute_scalar_product_of_landscapes_on_grid ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_scalar_product_of_landscapes_on_grid COMMAND $<TARGET_FILE:compute_scalar_product_of_landscapes_on_grid>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.g_land")
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
new file mode 100644
index 00000000..d50118a0
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/average_landscapes_on_grid.cpp
@@ -0,0 +1,65 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape_on_grid.h>
+
+#include <iostream>
+#include <vector>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes average persistence landscape on grid of persistence landscapes on grid created "
+ "based on persistence diagrams provided as an input. Please call this program with the names of files "
+ "with persistence diagrams \n";
+ std::vector<const char*> filenames;
+
+ if (argc == 1) {
+ std::cout << "No input files given, the program will now terminate \n";
+ return 1;
+ }
+
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence landscapes...\n";
+ std::vector<Persistence_landscape_on_grid*> lands;
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Persistence_landscape_on_grid* l = new Persistence_landscape_on_grid;
+ l->load_landscape_from_file(filenames[i]);
+ lands.push_back(l);
+ }
+
+ Persistence_landscape_on_grid av;
+ av.compute_average(lands);
+
+ av.print_to_file("average.g_land");
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ delete lands[i];
+ }
+
+ std::cout << "Done \n";
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp
new file mode 100644
index 00000000..859c6991
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_distance_of_landscapes_on_grid.cpp
@@ -0,0 +1,92 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape_on_grid.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute distance of persistence landscapes on grid stored in a file (the file needs to be "
+ "created beforehand). \n";
+ std::cout << "The first parameter of a program is an integer p. The program compute L^p distance of the landscapes "
+ "on grid. For L^infty distance choose p = -1. \n";
+ std::cout << "The remaining parameters of this programs are names of files with persistence landscapes on grid.\n";
+
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
+
+ int pp = atoi(argv[1]);
+ double p = std::numeric_limits<double>::max();
+ if (pp != -1) {
+ p = pp;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_landscape_on_grid> landscaspes;
+ landscaspes.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Persistence_landscape_on_grid l;
+ l.load_landscape_from_file(filenames[file_no]);
+ landscaspes.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > distance(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ distance[i] = v;
+ }
+
+ // and now we can compute the scalar product:
+ for (size_t i = 0; i != landscaspes.size(); ++i) {
+ for (size_t j = i; j != landscaspes.size(); ++j) {
+ distance[i][j] = distance[j][i] = compute_distance_of_landscapes_on_grid(landscaspes[i], landscaspes[j], p);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("distance");
+ for (size_t i = 0; i != distance.size(); ++i) {
+ for (size_t j = 0; j != distance.size(); ++j) {
+ std::cout << distance[i][j] << " ";
+ out << distance[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp
new file mode 100644
index 00000000..e95bf8ad
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp
@@ -0,0 +1,78 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape_on_grid.h>
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute scalar product of persistence landscapes on grid stored in a file (the file needs "
+ "to be created beforehand). \n";
+ std::cout << "The parameters of this programs are names of files with persistence landscapes on grid.\n";
+
+ std::vector<const char*> filenames;
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Persistence_landscape_on_grid> landscaspes;
+ landscaspes.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Persistence_landscape_on_grid l;
+ l.load_landscape_from_file(filenames[file_no]);
+ landscaspes.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > scalar_product(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ scalar_product[i] = v;
+ }
+
+ // and now we can compute the scalar product:
+ for (size_t i = 0; i != landscaspes.size(); ++i) {
+ for (size_t j = i; j != landscaspes.size(); ++j) {
+ scalar_product[i][j] = scalar_product[j][i] = compute_inner_product(landscaspes[i], landscaspes[j]);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("scalar_product");
+ for (size_t i = 0; i != scalar_product.size(); ++i) {
+ for (size_t j = 0; j != scalar_product.size(); ++j) {
+ std::cout << scalar_product[i][j] << " ";
+ out << scalar_product[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
new file mode 100644
index 00000000..8d747c14
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/create_landscapes_on_grid.cpp
@@ -0,0 +1,79 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape_on_grid.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence landscape on grid of diagrams provided as an input.\n";
+ std::cout << "The first parameter of a program is an integer, a size of a grid.\n";
+ std::cout << "The second and third parameters are min and max of the grid. If you want those numbers to be computed "
+ "based on the data, set them both to -1 \n";
+ std::cout << "The fourth parameter of the program is the dimension of persistence to be used to construct "
+ "persistence landscape on a grid. If your file contains ";
+ std::cout << "the information about dimension of birth-death pairs, please provide here the dimension of intervals "
+ "you want to use. If your input files consist only ";
+ std::cout << "of birth-death pairs, please set the fourth parameter to -1 \n";
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+
+ if (argc < 5) {
+ std::cout << "Wrong parameter list, the program will now terminate \n";
+ return 1;
+ }
+
+ size_t size_of_grid = (size_t)atoi(argv[1]);
+ double min_ = atof(argv[2]);
+ double max_ = atof(argv[3]);
+ int dim = atoi(argv[4]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 5; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Creating persistence landscapes...\n";
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cout << "Creating persistence landscape on a grid based on a file : " << filenames[i] << std::endl;
+ Persistence_landscape_on_grid l;
+ if ((min_ != -1) || (max_ != -1)) {
+ l = Persistence_landscape_on_grid(filenames[i], min_, max_, size_of_grid, dimension);
+ } else {
+ // (min_ == -1) && (max_ == -1), in this case the program will find min_ and max_ based on the data.
+ l = Persistence_landscape_on_grid(filenames[i], size_of_grid, dimension);
+ }
+ std::stringstream ss;
+ ss << filenames[i] << ".g_land";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp
new file mode 100644
index 00000000..42822a01
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/plot_landscapes_on_grid.cpp
@@ -0,0 +1,47 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_landscape_on_grid.h>
+
+#include <iostream>
+#include <sstream>
+
+using Persistence_landscape_on_grid = Gudhi::Persistence_representations::Persistence_landscape_on_grid;
+
+int main(int argc, char** argv) {
+ std::cout << "This program plot persistence landscape on grid stored in a file (the file needs to be created "
+ "beforehand). Please call the code with the name of a landscape on grid file \n";
+ if (argc == 1) {
+ std::cout << "Wrong parameters of a program call, the program will now terminate \n";
+ return 1;
+ }
+ Persistence_landscape_on_grid l;
+ l.load_landscape_from_file(argv[1]);
+
+ std::stringstream ss;
+ ss << argv[1] << "_gnuplot_script";
+ l.plot(ss.str().c_str());
+
+ std::cout << "Done \n";
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_landscapes_on_grid/simple_diagram.txt.g_land b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/simple_diagram.txt.g_land
new file mode 100644
index 00000000..dc53b932
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_landscapes_on_grid/simple_diagram.txt.g_land
@@ -0,0 +1,104 @@
+1
+8
+101
+
+0.07
+0.14
+0.21
+0.28
+0.35
+0.42
+0.49
+0.42
+0.35
+0.28
+0.21
+0.14
+0.07
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+0.07
+0.14
+0.21
+0.28
+0.35
+0.42
+0.49
+0.42
+0.35
+0.28
+0.21
+0.14
+0.07
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+0.07
+0.14
+0.21
+0.28
+0.35
+0.42
+0.49
+0.42
+0.35
+0.28
+0.21
+0.14
+0.07
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+0.07
+0.14
+0.21
+0.28
+0.35
+0.42
+0.49
+0.42
+0.35
+0.28
+0.21
+0.14
+0.07
+
+
diff --git a/src/Persistence_representations/utilities/persistence_vectors/CMakeLists.txt b/src/Persistence_representations/utilities/persistence_vectors/CMakeLists.txt
new file mode 100644
index 00000000..e3d1013b
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 2.6)
+project(Persistence_vectors_utilities)
+
+file(COPY "${CMAKE_SOURCE_DIR}/data/persistence_diagram/simple_diagram.txt" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}/")
+
+add_executable ( create_persistence_vectors create_persistence_vectors.cpp )
+target_link_libraries(create_persistence_vectors ${Boost_SYSTEM_LIBRARY})
+
+# Will create simple_diagram.txt.vect
+add_test(NAME create_persistence_vectors COMMAND $<TARGET_FILE:create_persistence_vectors>
+ "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt")
+
+add_executable ( average_persistence_vectors average_persistence_vectors.cpp )
+target_link_libraries(average_persistence_vectors ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME average_persistence_vectors COMMAND $<TARGET_FILE:average_persistence_vectors>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect")
+
+add_executable ( compute_distance_of_persistence_vectors compute_distance_of_persistence_vectors.cpp )
+target_link_libraries(compute_distance_of_persistence_vectors ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_distance_of_persistence_vectors COMMAND $<TARGET_FILE:compute_distance_of_persistence_vectors>
+ "-1" "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect")
+
+add_executable ( compute_scalar_product_of_persistence_vectors compute_scalar_product_of_persistence_vectors.cpp )
+target_link_libraries(compute_scalar_product_of_persistence_vectors ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME compute_scalar_product_of_persistence_vectors COMMAND $<TARGET_FILE:compute_scalar_product_of_persistence_vectors>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect"
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect")
+
+add_executable ( plot_persistence_vectors plot_persistence_vectors.cpp )
+target_link_libraries(plot_persistence_vectors ${Boost_SYSTEM_LIBRARY})
+
+add_test(NAME plot_persistence_vectors COMMAND $<TARGET_FILE:plot_persistence_vectors>
+ "${CMAKE_CURRENT_BINARY_DIR}/simple_diagram.txt.vect")
diff --git a/src/Persistence_representations/utilities/persistence_vectors/average_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/average_persistence_vectors.cpp
new file mode 100644
index 00000000..366ee2bc
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/average_persistence_vectors.cpp
@@ -0,0 +1,67 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_vectors.h>
+
+#include <iostream>
+#include <vector>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+ Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program computes average persistence vector of persistence vectors created based on persistence "
+ "diagrams provided as an input. \n";
+ std::cout << "Please call this program with the names of files with persistence diagrams \n";
+ std::vector<const char*> filenames;
+
+ if (argc == 1) {
+ std::cout << "No input files given, the program will now terminate \n";
+ return 1;
+ }
+
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ std::cout << "Reading persistence vectors...\n";
+ std::vector<Vector_distances_in_diagram*> lands;
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ Vector_distances_in_diagram* l = new Vector_distances_in_diagram;
+ l->load_from_file(filenames[i]);
+ lands.push_back(l);
+ }
+
+ Vector_distances_in_diagram av;
+ av.compute_average(lands);
+
+ av.print_to_file("average.vect");
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ delete lands[i];
+ }
+
+ std::cout << "Done \n";
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_vectors/compute_distance_of_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/compute_distance_of_persistence_vectors.cpp
new file mode 100644
index 00000000..3aed297e
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/compute_distance_of_persistence_vectors.cpp
@@ -0,0 +1,94 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_vectors.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+ Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute distance of persistence vectors stored in a file (the file needs to be created "
+ "beforehand). \n";
+ std::cout << "The first parameter of a program is an integer p. The program compute l^p distance of the vectors. For "
+ "l^infty distance choose p = -1. \n";
+ std::cout << "The remaining parameters of this programs are names of files with persistence vectors.\n";
+
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
+
+ int pp = atoi(argv[1]);
+ double p = std::numeric_limits<double>::max();
+ if (pp != -1) {
+ p = pp;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Vector_distances_in_diagram> vectors;
+ vectors.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Vector_distances_in_diagram l;
+ l.load_from_file(filenames[file_no]);
+ vectors.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > distance(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ distance[i] = v;
+ }
+
+ // and now we can compute the distances:
+ for (size_t i = 0; i != vectors.size(); ++i) {
+ for (size_t j = i + 1; j != vectors.size(); ++j) {
+ distance[i][j] = distance[j][i] = vectors[i].distance(vectors[j], p);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("distance");
+ for (size_t i = 0; i != distance.size(); ++i) {
+ for (size_t j = 0; j != distance.size(); ++j) {
+ std::cout << distance[i][j] << " ";
+ out << distance[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_vectors/compute_scalar_product_of_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/compute_scalar_product_of_persistence_vectors.cpp
new file mode 100644
index 00000000..d9ad4360
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/compute_scalar_product_of_persistence_vectors.cpp
@@ -0,0 +1,80 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_vectors.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+ Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program compute scalar product of persistence vectors stored in a file (the file needs to be "
+ "created beforehand). \n";
+ std::cout << "The parameters of this programs are names of files with persistence vectors.\n";
+
+ std::vector<const char*> filenames;
+ for (int i = 1; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+ std::vector<Vector_distances_in_diagram> vectors;
+ vectors.reserve(filenames.size());
+ for (size_t file_no = 0; file_no != filenames.size(); ++file_no) {
+ Vector_distances_in_diagram l;
+ l.load_from_file(filenames[file_no]);
+ vectors.push_back(l);
+ }
+
+ // and now we will compute the scalar product of landscapes.
+
+ // first we prepare an array:
+ std::vector<std::vector<double> > scalar_product(filenames.size());
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::vector<double> v(filenames.size(), 0);
+ scalar_product[i] = v;
+ }
+
+ // and now we can compute the scalar product:
+ for (size_t i = 0; i != vectors.size(); ++i) {
+ for (size_t j = i; j != vectors.size(); ++j) {
+ scalar_product[i][j] = scalar_product[j][i] = vectors[i].compute_scalar_product(vectors[j]);
+ }
+ }
+
+ // and now output the result to the screen and a file:
+ std::ofstream out;
+ out.open("scalar_product");
+ for (size_t i = 0; i != scalar_product.size(); ++i) {
+ for (size_t j = 0; j != scalar_product.size(); ++j) {
+ std::cout << scalar_product[i][j] << " ";
+ out << scalar_product[i][j] << " ";
+ }
+ std::cout << std::endl;
+ out << std::endl;
+ }
+ out.close();
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp
new file mode 100644
index 00000000..b618ca67
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/create_persistence_vectors.cpp
@@ -0,0 +1,63 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_vectors.h>
+
+#include <iostream>
+#include <sstream>
+#include <limits>
+#include <vector>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+ Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program creates persistence vectors of diagrams provided as an input. The first parameter of this "
+ "program is a dimension of persistence ";
+ std::cout << " that will be used in creation of the persistence vectors. If our input files contain persistence "
+ "pairs of various dimension, as a second parameter of the ";
+ std::cout << " procedure please provide the dimension of persistence you want to use. If in your file there are only "
+ "birth-death pairs of the same dimension, set the first parameter to -1."
+ << std::endl;
+ std::cout << "The remaining parameters are the names of files with persistence diagrams. \n";
+ int dim = atoi(argv[1]);
+ unsigned dimension = std::numeric_limits<unsigned>::max();
+ if (dim >= 0) {
+ dimension = (unsigned)dim;
+ }
+
+ std::vector<const char*> filenames;
+ for (int i = 2; i < argc; ++i) {
+ filenames.push_back(argv[i]);
+ }
+
+ for (size_t i = 0; i != filenames.size(); ++i) {
+ std::cerr << "Creating persistence vectors based on a file : " << filenames[i] << std::endl;
+ Vector_distances_in_diagram l(filenames[i], dimension);
+ std::stringstream ss;
+ ss << filenames[i] << ".vect";
+ l.print_to_file(ss.str().c_str());
+ }
+ std::cout << "Done \n";
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_vectors/plot_persistence_vectors.cpp b/src/Persistence_representations/utilities/persistence_vectors/plot_persistence_vectors.cpp
new file mode 100644
index 00000000..e52b8f7d
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/plot_persistence_vectors.cpp
@@ -0,0 +1,44 @@
+/* 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) 2016 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/>.
+ */
+
+#include <gudhi/Persistence_vectors.h>
+
+#include <iostream>
+#include <sstream>
+
+using Euclidean_distance = Gudhi::Euclidean_distance;
+using Vector_distances_in_diagram =
+ Gudhi::Persistence_representations::Vector_distances_in_diagram<Euclidean_distance>;
+
+int main(int argc, char** argv) {
+ std::cout << "This program create a Gnuplot script to plot persistence vector. Please call this program with the "
+ "name of file with persistence vector. \n";
+ if (argc != 2) {
+ std::cout << "Wrong number of parameters, the program will now terminate. \n";
+ return 1;
+ }
+ Vector_distances_in_diagram l;
+ l.load_from_file(argv[1]);
+ l.plot(argv[1]);
+
+ return 0;
+}
diff --git a/src/Persistence_representations/utilities/persistence_vectors/simple_diagram.txt.vect b/src/Persistence_representations/utilities/persistence_vectors/simple_diagram.txt.vect
new file mode 100644
index 00000000..1d4eeaaf
--- /dev/null
+++ b/src/Persistence_representations/utilities/persistence_vectors/simple_diagram.txt.vect
@@ -0,0 +1 @@
+0.707107 0.707107 0.707107 0.707107 0.707107 0.707107 0.707107 0.707107 0.707107 0.707107 \ No newline at end of file