> Although if you want to represent cubes of different sizes at the same, it > looks like you need to make as many vtkPoint arrays, vtkGlyph3DMapper's and > vtkActors as there are cube sizes, but this is no problem. You can scale the glyphs by an array: http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/ScaleGlyphs David