lib/triangle.rb in gmath3D-0.2.2 vs lib/triangle.rb in gmath3D-0.2.3

@@ -4,10 +4,12 @@
   #
   # Triangle represents a three edged finite plane on 3D space.
   #
   class Triangle < Geom
 public
-    attr_accessor:vertices
+    attr_accessor :vertices
+
+    include BoxAvailable
 
     # [Input]
     #  _vertex1_, _vertex2_, _vertex3_ should be Vector3.
     # [Output]
     #  return new instance of Triangle.