At my workplace we manage protected areas. The maps on their GPSes do not update often enough. Typically enough they are the ones setting up signs for the general public.
Our rangers would like to have access to the newest protected areas on their GPS. They are predominantly using Garmin. The protected areas are represented by relativle simple polygons. Styling could be very simplified; one color per category (national park/landscape protected area/etc) and a border line.
I want to establis a workflow where protected areas are exported and made available in the garmin img-format or similar. I will probably do this using FME Server, but it seems FME can not write garmin img-files
Are there open source libraries available which can write garmin img-files which can be integrated with the FME workflow??