Thanks for a prompt reply, but how would poor data quality explain the fact that two points that are very very near one another result in such a different outcome?
Where can I find more information in how to write profiles? And, in your experience, would a "car" profile that would basically accept to take any road, and ignore road directions, be an acceptable approximation for a foot profile? Thanks, Regards, EB On Tue, Apr 29, 2014 at 6:47 PM, Dennis Luxen <i...@project-osrm.org> wrote: > Salut Emmanuel, > > the foot profile is the least maintained. And foot data is among the most > inconsistent tagged data in OSM. You routing data probably broke into many, > many unconnected pieces. > > —Dennis > > > Am 29.04.2014 um 18:29 schrieb Emmanuel Bégué <medu...@gmail.com>: > >> Hello, >> >> Trying to use Project-OSRM for directions by foot, it seems some >> points simply don't work, either as start or stop points, whereas >> points that are very near, work fine (as well as some points that >> shouldn't be reachable because for example they're in the water). >> >> For example the point 48.88368971897955,2.332395315170288 (north of >> Paris), used as a start or an end point, always results in 207, >> "Cannot find route between points". >> >> But if we use instead 48.88371088449246,2.332277297973633 (a few >> meters away) then everything's fine; or if we use the offending point >> with a car profile on Project-OSRM demo site: no problem. >> >> No problem either if we begin or end our journey in the middle of a >> river: 48.85939286077621,2.331901788711548, so it's clearly not the >> case that the destination point is somehow "unreachable" by foot. >> >> I have tried to set the offending point to the nearest node with >> "locate" but that didn't help: >> locate?48.88368971897955,2.332395315170288 => 48.883674,2.332385 >> -- but that last point doesn't work any better. >> >> How can I investigate this? (How do we ask Project-OSRM to print more >> elaborate error messages?) >> >> I'm using Project-OSRM version before 3.9, the stock "foot.lua" >> profile and OSM data for France from Geofabrik. >> >> Thanks for any pointer. >> >> Regards, >> EB >> >> _______________________________________________ >> OSRM-talk mailing list >> OSRM-talk@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/osrm-talk > > > _______________________________________________ > OSRM-talk mailing list > OSRM-talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/osrm-talk _______________________________________________ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
