Merge branch 'master' of https://git.tk.informatik.tu-darmstadt.de/etri-smartspaces

bbiwarg/Utility/Vector.cs

@@ -212,6 +212,9 @@ namespace bbiwarg.Utility
 
             float distance = (sum * (dynamic)(-1)) / sumR;
 
+            if (distance < 0)
+                distance *= (float)(-1);
+
             return distance;
 
         }