That's it exactly! Like I said, it was a long time ago. This environment would be quite the challenge for a mapmaker.
In large part because the surface area of any ring world or dyson sphere would be absolutely enormous. But it leads to curious possibility especially as regards to the structure itself, the sub and service areas, etc. Undoubtedly such an enormous thing hanging out there in space would also be frequently hit with meteors. That would also have to be dealt with.