Hi Minko, thanks for the info. I am pretty sure that this "trick" is the cause of the problem, but I am not sure if mkgmap can be improved to handle it. If I got it right, the additional roads with access=no are also handled by the adjust-turn-headings option, so maybe they are only causing trouble here. I don't know if (or how) I can configure my Oregon to show the problem, so I've created more test maps for Johan: v3: java -jar mkgmap.jar --route --index --gmapsupp --style-file=d:\mkgmap-style-sheets-read-only\styles\world wrong-exit.osm v4: java -jar mkgmap.jar --route --index --gmapsupp --adjust-turn-headings --style-file=d:\mkgmap-style-sheets-read-only\styles\world wrong-exit.osm both with the original style files . v5: java -jar mkgmap.jar --route --index --gmapsupp --style-file=d:\mkgmap-style-sheets-read-only\styles\world wrong-exit.osm v6: java -jar mkgmap.jar --route --index --gmapsupp --adjust-turn-headings --style-file=d:\mkgmap-style-sheets-read-only\styles\world wrong-exit.osm both with a modified lines file (removed the "continue with_actions" for the roundabouts) @Johan: Please check all 4 versions Gerd
Date: Fri, 3 Oct 2014 17:56:44 +0200 From: ligfietser@online.nl To: mkgmap-dev@lists.mkgmap.org.uk Subject: Re: [mkgmap-dev] Incorrect runabout exit indication
Gerd, The new styles for Lambertus you can find here: https://code.google.com/p/mkgmap-style-sheets/source/browse/#svn%2Ftrunk%2Fs...
The issue could be that there are two lines used for roundabouts:
https://code.google.com/p/mkgmap-style-sheets/source/browse/trunk/styles/wor...
First step, an invisible routable line for the roundabouts 0x0c
# Roundabouts junction=roundabout & highway=trunk [0x0c road_class=3 road_speed=2 resolution 18 continue with_actions] junction=roundabout & highway=primary [0x0c road_class=3 road_speed=2 resolution 19 continue with_actions] junction=roundabout & highway=secondary [0x0c road_class=2 road_speed=2 resolution 20 continue with_actions] junction=roundabout & highway=tertiary [0x0c road_class=1 road_speed=1 resolution 21 continue with_actions] junction=roundabout & highway=unclassified [0x0c road_class=1 road_speed=1 resolution 21 continue with_actions] junction=roundabout & !(highway=unclassified|highway=tertiary|highway=secondary|highway=primary| highway=trunk) [0x0c road_class=0 road_speed=1 resolution 22 continue with_actions]
Second step, all roundabouts are made unaccessible after 0x0c is processed, in order to prevent two routable lines on top of each other:
junction=roundabout {set access=no}
Third step (continue with_actions) the highways are rendered, so you can see a difference in road classes on those roundabouts. The default mkgmap style (=Lambertus 'old style') renders all roundabouts the same.
I think Johan's nuvi gets confused by those two routable types?
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