// Written and (C) by Francois Fleuret
// Contact <francois.fleuret@idiap.ch> for comments & bug reports
+#include <iostream>
+
#include <cmath>
#include "polygon.h"
+using namespace std;
+
static const scalar_t dl = 20.0;
static const scalar_t repulsion_constant = 0.2;
static const scalar_t dissipation = 0.5;