So, explain to me how you do and don't infringe on copyright?

You just gave me another idea - what about an Empire-Foundation map? Trantor, Terminus, Ancreon...?

How about a Battlestar Galactica (the new series) map?

It can be the Human fleet with Galactica, Pegasus, Colonial One, Majahual, Olympic Carrier, and a fleet of Cylon Basestars and the places they've been to; Kobol, Caprica, Ragnar, The Algae Planet. And to get between ships you use Vipers and ...