This python module is designed to manipulate very large N-body data using mpi. From a given model, it allows to extract and plot physical values like energy, kinetic momentum, inertial momentum, centrer of mass etc. It also allows to modify the data, selecticting subsystem or merge different models. With the associated program pgwin, the user can visualise the data interactively. A huge diversity of mapping of the model are possible, like surface density map, velocity map, velocity dispersion map, etc. Films of evolving data can be computed with mkgmov and visalized with gmov.
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