     
     import flash.display.BitmapData;
     import flash.utils.Dictionary;
+    
+    import mx.olap.aggregators.MaxAggregator;
     
     use namespace minko_math;
     

                        child.localToWorldTransformChanged.execute(child, childLocalToWorld);
                    }
                }
            }
        }
        

            
            while (nodeId >= 0)
            {
                if ((_transforms[nodeId] as Matrix4x4)._hasChanged || !_initialized[nodeId])
                    dirtyRoot = nodeId;
                
                nodeId = _parentId[nodeId];
            }
            
            if (dirtyRoot >= 0)
                updateLocalToWorld(dirtyRoot, true);
        }
        
        private function targetAddedHandler(ctrl	: TransformController,
