diff options
Diffstat (limited to 'src/Bipartite_graphs_matching/example/basic.cpp')
| -rw-r--r-- | src/Bipartite_graphs_matching/example/basic.cpp | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/Bipartite_graphs_matching/example/basic.cpp b/src/Bipartite_graphs_matching/example/basic.cpp index 772bcd4a..797968cc 100644 --- a/src/Bipartite_graphs_matching/example/basic.cpp +++ b/src/Bipartite_graphs_matching/example/basic.cpp @@ -23,8 +23,48 @@ #include "../include/gudhi/Graph_matching.h" #include <iostream> +#include <chrono> +#include <fstream> + using namespace Gudhi::bipartite_graph_matching; + +double upper_bound = 400.; // any real >0 + +int main(){ + std::ofstream objetfichier; + objetfichier.open("results.csv", std::ios::out); + + for(int n =50; n<=1000; n+=100){ + std::uniform_real_distribution<double> unif1(0.,upper_bound); + std::uniform_real_distribution<double> unif2(upper_bound/1000.,upper_bound/100.); + std::default_random_engine re; + std::vector< std::pair<double, double> > v1, v2; + for (int i = 0; i < n; i++) { + double a = unif1(re); + double b = unif1(re); + double x = unif2(re); + double y = unif2(re); + v1.emplace_back(std::min(a,b), std::max(a,b)); + v2.emplace_back(std::min(a,b)+std::min(x,y), std::max(a,b)+std::max(x,y)); + if(i%5==0) + v1.emplace_back(std::min(a,b),std::min(a,b)+x); + if(i%3==0) + v2.emplace_back(std::max(a,b),std::max(a,b)+y); + } + + std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now(); + double b = bottleneck_distance(v1,v2); + std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now(); + + typedef std::chrono::duration<int,std::milli> millisecs_t; + millisecs_t duration(std::chrono::duration_cast<millisecs_t>(end-start)); + objetfichier << n << ";" << duration.count() << ";" << b << std::endl; + } + objetfichier.close(); +} + +/* int main() { std::vector< std::pair<double,double> > v1, v2; @@ -40,4 +80,4 @@ int main() { std::cout << "Bottleneck distance = " << b << std::endl; -} +}*/ |