From John Grant, added getDrawableList() const.

include/osg/Geode

@@ -38,6 +38,7 @@ class OSG_EXPORT Geode : public Node
 
         META_Node(osg, Geode);
 
+        
         /** Add a \c Drawable to the \c Geode.
           * If \c drawable is not \c NULL and is not contained in the \c Geode
           * then increment its reference count, add it to the drawables list and
@@ -121,6 +122,9 @@ class OSG_EXPORT Geode : public Node
             return _drawables.size(); // drawable not found.
         }
 
+        /** Get the list of drawables.*/
+        const DrawableList& getDrawableList() const { return _drawables; }
+
         /** Compile OpenGL Display List for each drawable.*/
         void compileDrawables(State& state);