Hi, Don't complicate your code for nothing. All you need is a simple data structure such as std::vector<T> You may push and pop your actors easily with built-in iterators. -- View this message in context: http://vtk.1045678.n5.nabble.com/Storing-actors-into-memory-C-tp5729971p5730046.html Sent from the VTK - Users mailing list archive at Nabble.com.