Hi Gerd, I think this would be best and additionally I would suggest to make the polygon defined by user (as suggested in DEM-poly and precomp-sea thread). As default I would limit overview map to the map tiles. Maybe then we should name the parameter --overview-map-polygon=filename I'm not sure, if the actual rectangle should be maximizing the polygon and the map tile area minimizing it or if Garmin doesn't care at all about it. If no external sea-data is given I would keep map tile area as background polygon. Otherwise it will look strange. Henning On 12.01.2018 19:19, Gerd Petermann wrote:
Hi all,
up to now mkgmap always creates a rectangular 0x4b polygon for the overview map. I wonder if I should change that so that the 0x4b polygons of the sub tiles are used. This seems to be the better way if we start using non-rectangular 0x4b polygons?
Gerd _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev