Hi Gerd No problems that I can see - but very difficult to test. I've run 'british-isles-latest' with the patch. There is 1 extra error message that a duplicate, ie I get: SEVERE (RoadNetwork): 74220083.osm.pbf: Turn restriction (only_straight_on) http://www.openstreetmap.org/relation/8727983 (at http://www.openstreetmap.org/?mlat=51.541969&mlon=0.004312&zoom=17) can't locate arc from 'via' node at http://www.openstreetmap.org/?mlat=51.541949&mlon=0.004060&zoom=17 to next 'via' node on way 642330324 SEVERE (RoadNetwork): 74220083.osm.pbf: Turn restriction (only_straight_on) http://www.openstreetmap.org/relation/8727983 (at http://www.openstreetmap.org/?mlat=51.541969&mlon=0.004312&zoom=17) can't locate arc from 'via' node at http://www.openstreetmap.org/?mlat=51.541949&mlon=0.004060&zoom=17 to next 'via' node on way 642330324 Whereas before I only got this message once. This is a restriction with 3 via's. (I get 12 other messages relating to restrictions) For all but this tile, the .img files are the same size and, picking a few examples, the NET and NOD parts are identical. For this tile the NET parts are identical but the NOD is not really comparable because of different sizes / offsets. pre-patch size: 10102784 Oct 10 11:52 74220083.img post-patch size: 10104832 Oct 10 15:58 74220083.img Ticker On Thu, 2019-10-10 at 09:49 +0000, Gerd Petermann wrote:
Hi all,
in http://gis.19327.n8.nabble.com/Turn-Restrictions-using-three-ways- design-guide-for-OSM-mappers-tp5949183.html Thanks to blc I've learned that only_* restrictions with via ways should be interpreted a bit different. As you might know the Garmin IMG format only has restrictions of type "no", so mkgmap has to translate "only" restrictions to a list of "no" restrictions. For those "only" restrictions the current code in version r4295 checks the roads connected to (the last) "via"-node and adds a "no" restriction for all ways except the "to"-way. The meaning of an "only" restriction with "via"-way(s) is a bit different . I means something like "once you have reached the node that connects the "from"-way with the (first) "via"-way travelling on the "from" way you MUST use the route described in the restriction relation unless you have reached the "to" way. So, mkgmap must add restrictions for each route node on the "via" -way(s), not only the last.
The patch implements this and no longer prints a warning for "only" -restrictions with "via" ways (severity was changed from warning to information).
I've uploaded a binary here: http://files.mkgmap.org.uk/download/452/mkgmap.jar
If I hear no complains I'll commit this patch next Monday.
Gerd _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev