Build the map

Assuming that you have fetched the tools and styles, and the SMRT data and the most current OSM map data you are ready to compile it all together to batch of .img files which can Garmin can read.

Arguments to mkgmap

mkgmap takes of a lot of different arguments which you can us to tweak the OSM data in the direction the specifically suit your needs. But instead of actually applying hundreds of arguments you can bundle them all together into a file, which you hand to the mkgmap instead. It's much easier, so thats what we'll do.