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-rw-r--r--src/Persistence_representations/utilities/persistence_landscapes_on_grid/compute_scalar_product_of_landscapes_on_grid.cpp101
1 files changed, 45 insertions, 56 deletions
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
index 342613b4..9bbba7cf 100644
--- 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
@@ -20,70 +20,59 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-
#include <gudhi/Persistence_landscape_on_grid.h>
-
-
using namespace Gudhi;
using namespace Gudhi::Persistence_representations;
#include <iostream>
#include <sstream>
+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]);
+ }
+ }
-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";
+ // 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();
- 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;
+ return 0;
}