Cleaning up for DL.

[universe.git] / polygon.cc

diff --git a/polygon.cc b/polygon.cc
index 9e55d80..35bbd9c 100644 (file)
--- a/polygon.cc
+++ b/polygon.cc
@@ -2,9 +2,13 @@
 // 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;