lib/yzz.rb in yzz-2.0.5 vs lib/yzz.rb in yzz-2.0.7

@@ -65,9 +65,15 @@
   # 
   def towards other
     connectivity.select { |side| side.neighbor == other }
   end
 
+  # Prints the labels of the sides facing towards a given zz object.
+  # 
+  def tw other
+    puts towards( other ).map &:label
+  end
+
   # Short string describing the object.
   # 
   def to_s
     "#<Yzz, #{connections.size} conn.>"
   end