How do I start gmapping with an initial map?
How do I give gmapping an initial map to start with?
My maps don't always turn out great, and it takes a long time to build them. I'd like to be able to map part of the house, when that looks good, save that map, and start again from there.
(This tutorial shows how to use a known map for AMCL, but not as a starting point for gmapping).