NanoVis (beta version) allows to visualize any atomistic structure by reading a user defined file. The supported formats are "gen" and "xyz". There are two display modes: normal and "spacefill". In the zip file, with the .m file, there are two examples of structure and a file containing the atoms properties.
NanoVis is a small part of NanoBuild, a complete software that allows to build any structure atom by atom.
There are several advanced tools of molecular rotation and translation. For more information please contact romano.giuseppe@uniroma2.it