diff --git a/vcg/space/box2.h b/vcg/space/box2.h
index 5096386b..651c903c 100644
--- a/vcg/space/box2.h
+++ b/vcg/space/box2.h
@@ -272,6 +272,22 @@ public:
     max = c + PointType(radius, radius);
     min = c - PointType(radius, radius);
   }
+
+	inline unsigned char MaxDim() const {
+		int i=1;
+		PointType diag = max-min;
+		if (diag[0] > diag[1])
+			i=0;
+		return i;
+	}
+
+	inline unsigned char MinDim() const {
+		int i=1;
+		PointType diag =  max-min;
+		if (diag[0] < diag[1])
+			i=0;
+		return i;
+	}
 	
 }; // end class definition