I’m tryging to prepare some maps of European countries (Poland, Czech, Germany, Slovakia…). I don’t need entire Europe in one map - I prefer to have maps of each country and enable/disable those which are currently needed.
My problem is routing. Rounting internally at each country map working good but when I try to route between 2 countries (same border) - for example Czech and Poland my unit (Garmin Montana 600) stop calculating route at some % (I assume - reaching the border).
Could You please give me some advice or even better - example to prepare working set of maps?
I’m using Geofabrik OSM data, splitter and mkgmap.
In mkgmap maps I have seen problems with long distance routing (> 800~900 Km)
To check for continuity try to simulate the route between two points only a few Km of each side of the border.
That won’t work. You must have one map containing both countries in order for border-crossing routing to work.
It is possible to combine the Geofabrik extracts and then create the map from that combined file.
I saw the commits, and it seems that this will be the default behaviour from r4223.
Should we expect that map producers which uses that version or newer, and the map and their users should benefit without doing nothing?