OK, it seems if you mix zoom levels and routing things go wrong, changed style to thus. . . highway=primary [0x10e0c level 3 continue] highway=primary [0x03 road_class=2 road_speed=1 level 2] Routing works fine. I suggest it should be mentioned in the style document that lines only at higher levels should not use routable types; and not be routable, but I am not sure about the routable types part?!? But better to be safe than sorry. But, another question, why does this work. . . junction=roundabout [0x0c road_class=1 road_speed=1 continue] . . . . . . highway=trunk [0x10e0b level 3-4 continue] highway=trunk [0x02 road_class=3 road_speed=1 level 2] highway=primary [0x10e0c level 3 continue] highway=primary [0x03 road_class=2 road_speed=1 level 2] Why does the routing on the roundabout (transparent line), followed by the routing later on - work? G From: Geoff Sherlock Sent: Sunday, May 19, 2013 6:26 PM To: Development list for mkgmap Subject: [mkgmap-dev] Problem for routing with different zoom levels Not sure if anyone has spotted this before, as I have not been keeping a close eye on the mailing list lately. I had the following defined in my style file; to show thinner lines for primary highways at different zoom levels: highway=primary [0x1b road_class=2 road_speed=1 level 3-4 continue] highway=primary [0x03 road_class=2 road_speed=1 level 2] This seems to have broken routing in Mapsource and on the device. I removed the first line and changed the level on the second to 3 and it worked fine (I assume 4 would have worked fine as well). Is there a restriction on doing this type of thing regarding routing? Geoff. -------------------------------------------------------------------------------- _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://lists.mkgmap.org.uk/mailman/listinfo/mkgmap-dev