diff options
Diffstat (limited to 'src/Nerve_GIC/example')
-rw-r--r-- | src/Nerve_GIC/example/GIC.cpp | 77 | ||||
-rw-r--r-- | src/Nerve_GIC/example/MapperDelta.cpp | 62 | ||||
-rw-r--r-- | src/Nerve_GIC/example/Nerve.cpp | 63 | ||||
-rw-r--r-- | src/Nerve_GIC/example/simple_GIC.cpp | 40 |
4 files changed, 219 insertions, 23 deletions
diff --git a/src/Nerve_GIC/example/GIC.cpp b/src/Nerve_GIC/example/GIC.cpp new file mode 100644 index 00000000..5161a46b --- /dev/null +++ b/src/Nerve_GIC/example/GIC.cpp @@ -0,0 +1,77 @@ +#include <gudhi/GIC.h> + +void usage(int nbArgs, char * const progName) { + std::cerr << "Error: Number of arguments (" << nbArgs << ") is not correct\n"; + std::cerr << "Usage: " << progName << " filename.off threshold coordinate resolution gain\n"; + std::cerr << " i.e.: " << progName << " ../../data/points/test.off 1.5 1 10 0.3 \n"; + exit(-1); // ----- >> +} + +int main(int argc, char **argv) { + if ((argc != 6) && (argc != 7)) usage(argc, (argv[0] - 1)); + + std::string off_file_name(argv[1]); + double threshold = atof(argv[2]); + //std::string func_file_name = argv[3]; + int coord = atoi(argv[3]); + double resolution = atof(argv[4]); + double gain = atof(argv[5]); + bool verb = 0; if(argc == 7) verb = 1; + + // Type definitions + using Graph_t = boost::adjacency_list < boost::vecS, boost::vecS, boost::undirectedS,\ + boost::property < vertex_filtration_t, Filtration_value >,\ + boost::property < edge_filtration_t, Filtration_value > >; + + // ---------------------------------------------------------------------------- + // Init of a graph induced complex from an OFF file + // ---------------------------------------------------------------------------- + + Gudhi::graph_induced_complex::Graph_induced_complex GIC; + GIC.set_verbose(verb); + + GIC.set_graph_from_automatic_rips(off_file_name); + //GIC.set_graph_from_rips(threshold, off_file_name); + //GIC.set_graph_from_OFF(off_file_name); + + GIC.set_function_from_coordinate(coord, off_file_name); + //GIC.set_function_from_file(func_file_name); + + GIC.set_color_from_coordinate(coord, off_file_name); + //GIC.set_color_from_file(func_file_name); + + GIC.set_automatic_resolution_for_GICMAP(); + GIC.set_gain(); + GIC.set_cover_from_function(1); + + //GIC.find_GIC_simplices(); + //GIC.find_Nerve_simplices(); + GIC.find_GICMAP_simplices_with_functional_minimal_cover(); + + GIC.plot_with_KeplerMapper(); + + Simplex_tree stree; GIC.create_complex(stree); + + std::streambuf* streambufffer = std::cout.rdbuf(); + std::ostream output_stream(streambufffer); + + // ---------------------------------------------------------------------------- + // Display information about the graph induced complex + // ---------------------------------------------------------------------------- + + if(verb){ + output_stream << "Graph induced complex is of dimension " << stree.dimension() << + " - " << stree.num_simplices() << " simplices - " << + stree.num_vertices() << " vertices." << std::endl; + + output_stream << "Iterator on graph induced complex simplices" << std::endl; + for (auto f_simplex : stree.filtration_simplex_range()) { + for (auto vertex : stree.simplex_vertex_range(f_simplex)) { + output_stream << vertex << " "; + } + output_stream << std::endl; + } + } + + return 0; +} diff --git a/src/Nerve_GIC/example/MapperDelta.cpp b/src/Nerve_GIC/example/MapperDelta.cpp new file mode 100644 index 00000000..1f8f1582 --- /dev/null +++ b/src/Nerve_GIC/example/MapperDelta.cpp @@ -0,0 +1,62 @@ +#include <gudhi/GIC.h> + +void usage(int nbArgs, char * const progName) { + std::cerr << "Error: Number of arguments (" << nbArgs << ") is not correct\n"; + std::cerr << "Usage: " << progName << " filename.off coordinate \n"; + std::cerr << " i.e.: " << progName << " ../../data/points/human.off 2 --v \n"; + exit(-1); // ----- >> +} + +int main(int argc, char **argv) { + if ((argc != 6) && (argc != 7)) usage(argc, (argv[0] - 1)); + + std::string off_file_name(argv[1]); + int coord = atoi(argv[2]); + bool verb = 0; if(argc == 4) verb = 1; + + // Type definitions + using Graph_t = boost::adjacency_list < boost::vecS, boost::vecS, boost::undirectedS,\ + boost::property < vertex_filtration_t, Filtration_value >,\ + boost::property < edge_filtration_t, Filtration_value > >; + + // --------------------------------------- + // Init of a Mapper Delta from an OFF file + // --------------------------------------- + + Gudhi::graph_induced_complex::Graph_induced_complex GIC; + GIC.set_verbose(verb); + + GIC.set_graph_from_automatic_rips(off_file_name); + GIC.set_function_from_coordinate(coord, off_file_name); + GIC.set_color_from_coordinate(coord, off_file_name); + GIC.set_automatic_resolution_for_GICMAP(); + GIC.set_gain(); + GIC.set_cover_from_function(1); + GIC.find_GICMAP_simplices_with_functional_minimal_cover(); + GIC.plot_with_KeplerMapper(); + + Simplex_tree stree; GIC.create_complex(stree); + + std::streambuf* streambufffer = std::cout.rdbuf(); + std::ostream output_stream(streambufffer); + + // ------------------------------------------ + // Display information about the Mapper Delta + // ------------------------------------------ + + if(verb){ + output_stream << "Mapper Delta is of dimension " << stree.dimension() << + " - " << stree.num_simplices() << " simplices - " << + stree.num_vertices() << " vertices." << std::endl; + + output_stream << "Iterator on Mapper Delta simplices" << std::endl; + for (auto f_simplex : stree.filtration_simplex_range()) { + for (auto vertex : stree.simplex_vertex_range(f_simplex)) { + output_stream << vertex << " "; + } + output_stream << std::endl; + } + } + + return 0; +} diff --git a/src/Nerve_GIC/example/Nerve.cpp b/src/Nerve_GIC/example/Nerve.cpp new file mode 100644 index 00000000..adcc715d --- /dev/null +++ b/src/Nerve_GIC/example/Nerve.cpp @@ -0,0 +1,63 @@ +#include <gudhi/GIC.h> + +void usage(int nbArgs, char * const progName) { + std::cerr << "Error: Number of arguments (" << nbArgs << ") is not correct\n"; + std::cerr << "Usage: " << progName << " filename.off coordinate resolution gain --v \n"; + std::cerr << " i.e.: " << progName << " ../../data/points/human.off 2 1 0.3 --v \n"; + exit(-1); // ----- >> +} + +int main(int argc, char **argv) { + if ((argc != 6) && (argc != 7)) usage(argc, (argv[0] - 1)); + + std::string off_file_name(argv[1]); + int coord = atoi(argv[2]); + double resolution = atof(argv[3]); + double gain = atof(argv[4]); + bool verb = 0; if(argc == 6) verb = 1; + + // Type definitions + using Graph_t = boost::adjacency_list < boost::vecS, boost::vecS, boost::undirectedS,\ + boost::property < vertex_filtration_t, Filtration_value >,\ + boost::property < edge_filtration_t, Filtration_value > >; + + // -------------------------------- + // Init of a Nerve from an OFF file + // -------------------------------- + + Gudhi::graph_induced_complex::Graph_induced_complex GIC; + GIC.set_verbose(verb); + + GIC.set_function_from_coordinate(coord, off_file_name); + GIC.set_color_from_coordinate(coord, off_file_name); + GIC.set_resolution_double(resolution); + GIC.set_gain(gain); + GIC.set_cover_from_function(1); + GIC.find_Nerve_simplices(); + GIC.plot_with_KeplerMapper(); + + Simplex_tree stree; GIC.create_complex(stree); + + std::streambuf* streambufffer = std::cout.rdbuf(); + std::ostream output_stream(streambufffer); + + // ---------------------------------------------------------------------------- + // Display information about the graph induced complex + // ---------------------------------------------------------------------------- + + if(verb){ + output_stream << "Nerve is of dimension " << stree.dimension() << + " - " << stree.num_simplices() << " simplices - " << + stree.num_vertices() << " vertices." << std::endl; + + output_stream << "Iterator on Nerve simplices" << std::endl; + for (auto f_simplex : stree.filtration_simplex_range()) { + for (auto vertex : stree.simplex_vertex_range(f_simplex)) { + output_stream << vertex << " "; + } + output_stream << std::endl; + } + } + + return 0; +} diff --git a/src/Nerve_GIC/example/simple_GIC.cpp b/src/Nerve_GIC/example/simple_GIC.cpp index 8b3aecb8..5161a46b 100644 --- a/src/Nerve_GIC/example/simple_GIC.cpp +++ b/src/Nerve_GIC/example/simple_GIC.cpp @@ -2,7 +2,7 @@ void usage(int nbArgs, char * const progName) { std::cerr << "Error: Number of arguments (" << nbArgs << ") is not correct\n"; - std::cerr << "Usage: " << progName << " filename.off threshold coordinate resolution gain [ouput_file.txt]\n"; + std::cerr << "Usage: " << progName << " filename.off threshold coordinate resolution gain\n"; std::cerr << " i.e.: " << progName << " ../../data/points/test.off 1.5 1 10 0.3 \n"; exit(-1); // ----- >> } @@ -16,6 +16,7 @@ int main(int argc, char **argv) { int coord = atoi(argv[3]); double resolution = atof(argv[4]); double gain = atof(argv[5]); + bool verb = 0; if(argc == 7) verb = 1; // Type definitions using Graph_t = boost::adjacency_list < boost::vecS, boost::vecS, boost::undirectedS,\ @@ -27,8 +28,9 @@ int main(int argc, char **argv) { // ---------------------------------------------------------------------------- Gudhi::graph_induced_complex::Graph_induced_complex GIC; + GIC.set_verbose(verb); - GIC.set_graph_from_automatic_rips(100, off_file_name); + GIC.set_graph_from_automatic_rips(off_file_name); //GIC.set_graph_from_rips(threshold, off_file_name); //GIC.set_graph_from_OFF(off_file_name); @@ -38,9 +40,9 @@ int main(int argc, char **argv) { GIC.set_color_from_coordinate(coord, off_file_name); //GIC.set_color_from_file(func_file_name); - resolution = GIC.set_automatic_resolution_for_GICMAP(); - - GIC.set_cover_from_function(resolution,gain,1); + GIC.set_automatic_resolution_for_GICMAP(); + GIC.set_gain(); + GIC.set_cover_from_function(1); //GIC.find_GIC_simplices(); //GIC.find_Nerve_simplices(); @@ -50,34 +52,26 @@ int main(int argc, char **argv) { Simplex_tree stree; GIC.create_complex(stree); - std::streambuf* streambufffer; - std::ofstream ouput_file_stream; - - if (argc == 7) { - ouput_file_stream.open(std::string(argv[4])); - streambufffer = ouput_file_stream.rdbuf(); - } else { - streambufffer = std::cout.rdbuf(); - } - + std::streambuf* streambufffer = std::cout.rdbuf(); std::ostream output_stream(streambufffer); // ---------------------------------------------------------------------------- // Display information about the graph induced complex // ---------------------------------------------------------------------------- - output_stream << "Graph induced complex is of dimension " << stree.dimension() << + + if(verb){ + output_stream << "Graph induced complex is of dimension " << stree.dimension() << " - " << stree.num_simplices() << " simplices - " << stree.num_vertices() << " vertices." << std::endl; - output_stream << "Iterator on graph induced complex simplices" << std::endl; - for (auto f_simplex : stree.filtration_simplex_range()) { - for (auto vertex : stree.simplex_vertex_range(f_simplex)) { - output_stream << vertex << " "; + output_stream << "Iterator on graph induced complex simplices" << std::endl; + for (auto f_simplex : stree.filtration_simplex_range()) { + for (auto vertex : stree.simplex_vertex_range(f_simplex)) { + output_stream << vertex << " "; + } + output_stream << std::endl; } - output_stream << std::endl; } - ouput_file_stream.close(); - return 0; } |