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# ginga_mp

class `imexam.ginga_viewer.``ginga_mp`(exam=None, close_on_del=True, logger=None)

  Bases: `imexam.ginga_viewer.ginga_general`

  A ginga-based viewer that uses a matplotlib widget.

  This kind of viewer has slower performance than if we choose a particular widget back end, but the advantage is that it works so long as the user has a working matplotlib.

  This implementation has the benefit of adding image overlays

  Notes

  Ginga viewers all need a logger, if none is provided it will create one