serialize a vtk object

thank you, neat idea.
yet in any time I send the point cloud from javascript web to python server, the user has manipulated the location of most of points in point cloud on the web page interface.
so point cloud locations is not fixed and every time changes. so I guess I need to make the surface on server, save the mesh file, and give the address to client to download and visualize it.is there a more efficient way I can use?