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-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp128
1 files changed, 54 insertions, 74 deletions
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
index ef969ed0..1c690c53 100644
--- a/src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp
+++ b/src/Persistence_representations/utilities/persistence_landscapes/compute_distance_of_landscapes.cpp
@@ -22,91 +22,71 @@
#include <gudhi/Persistence_landscape.h>
-
-
using namespace Gudhi;
using namespace Gudhi::Persistence_representations;
#include <iostream>
#include <sstream>
+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.";
-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;
- }
-
+ if (argc < 3) {
+ std::cout << "Wrong number of parameters, the program will now terminate \n";
+ return 1;
+ }
- 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;
-}
+ 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;
+}