Thanks again Michal I'll try it soon with subway instead of bus. Out of curiosity, why do you define highway in process_way function? It does not seem to be used elsewhere.
2018-04-30 13:03 GMT-04:00 Michal Palenik <[email protected]>: > On Mon, Apr 30, 2018 at 12:57:42PM -0400, Patrick Agin wrote: > > Thanks a lot to both of you. Michal, can I ask you two things: > > what's the purpose of adding tram and train to excludable? > > generally to ignore trains when they do not have a common ticketing > scheme. > > > and about get_from_rel(relations, way, "route", 'bus', "route") line, is > > 'bus' a reserved OSM word or is it defined by you? > > function get_from_rel(relations, way, "route", 'bus', "network") > will find first/random relation of route=bus which the way is a member > of, and then returns tag "network". > > see also > https://github.com/Project-OSRM/osrm-backend/issues/5032 > > > I ask the question > > because I would like to manage subway routes. > > Patrick > > > > 2018-04-30 12:48 GMT-04:00 Michal Palenik <[email protected]>: > > > > > hi, I have it working > > > https://github.com/FreemapSlovakia/freemap- > routing/blob/master/oma-bus.lua > > > (and train profile below) > > > > > > michal > > > > > > On Mon, Apr 30, 2018 at 09:26:22AM -0700, Daniel Patterson wrote: > > > > Hi Patrick, > > > > > > > > Nobody has written a "How to make a public transport profile" > document > > > > for OSRM, you'll have to piece it together from examples and reading > > > code. > > > > > > > > That said, the "testbot" profile here: > > > > https://github.com/Project-OSRM/osrm-backend/blob/master/ > > > profiles/testbot.lua > > > > > > > > is fairly simple. There are 3 functions: `process_node`, > > > `process_way`, > > > > and `process_turn`. The `process_way` function is run for every way > in > > > the > > > > OSM file you input, and it decides whether to include it in the > routing > > > > graph (by setting properties on the `result` object), or to exclude > it > > > (by > > > > simply returning without doing any work). > > > > > > > > As someone else pointed out in another thread, the `car.lua` > profile is > > > > pretty complex - it's developed over time, and has a lot of logic in > it > > > > that makes it hard to understand. I'd start with the testbot profile > > > > above, and add the stuff you think you need. > > > > > > > > You might also want to take a look at > > > > https://github.com/Project-OSRM/osrm-frontend/tree/gh-pages/debug > which > > > is > > > > a web viewer that can show you what the routing graph looks like. > > > > > > > > daniel > > > > > > > > On Mon, Apr 30, 2018 at 8:39 AM, Patrick Agin < > [email protected]> > > > > wrote: > > > > > > > > > Thanks again Daniel. Could you just give me an example (with a > snippet > > > of > > > > > code maybe) of a good implementation of point 1 (Lua profile that > only > > > > > includes public transport ways in the graph). I just don't have any > > > clue > > > > > about implementing this and I'm not aware of any docs that could > help > > > me > > > > > with that. > > > > > Patrick > > > > > > > > > > 2018-04-30 11:30 GMT-04:00 Daniel Patterson <[email protected]>: > > > > > > > > > >> Hi Patrick, > > > > >> > > > > >> This could be tricky, depending on how long the traces you're > > > trying to > > > > >> match are. > > > > >> > > > > >> The OSRM Lua profiles basically act as a filter - they decide > which > > > > >> ways from OSM are included in the routing graph, and assign > > > properties to > > > > >> edges in the graph. > > > > >> > > > > >> The map-matching algorithm will try to snap your coordinate > list to > > > the > > > > >> most likely path across the routing graph. > > > > >> > > > > >> In order to only snap to public transport paths, you'll need: > > > > >> > > > > >> 1) A Lua profile that only includes public transport ways in > the > > > > >> graph. > > > > >> 2) A way to ensure that all the public transport paths are > > > connected > > > > >> together (this could be difficult without including lots of extra > > > stuff you > > > > >> don't want in the graph) > > > > >> 3) GPS traces that are somewhat close to the actual paths > > > themselves, > > > > >> as mapped in OSM > > > > >> > > > > >> (2) could be the really tricky bit here. If the public > transport > > > paths > > > > >> are not connected, then any GPS trace you have that spans two > public > > > > >> transport routes (say, a bus change, or a train change) but those > > > routes > > > > >> aren't actually connected by the graph, will cause problems with > the > > > > >> map-matching algorithm. > > > > >> > > > > >> daniel > > > > >> > > > > >> On Mon, Apr 30, 2018 at 7:23 AM, Patrick Agin < > [email protected] > > > > > > > > >> wrote: > > > > >> > > > > >>> Hi everyone, > > > > >>> I'm trying to define a profile to force match service to take > public > > > > >>> transport routes only. I tried to add residential in excludable > so I > > > can > > > > >>> add exclude=residential at query time but it does not change > > > anything to > > > > >>> the returned answer. Can someone help or point me towards > > > documentation > > > > >>> that could help (I've read profile.md but it does not help me > much). > > > > >>> Thanks a lot, > > > > >>> Patrick (newbie with osrm) > > > > >>> > > > > >>> _______________________________________________ > > > > >>> OSRM-talk mailing list > > > > >>> [email protected] > > > > >>> https://lists.openstreetmap.org/listinfo/osrm-talk > > > > >>> > > > > >>> > > > > >> > > > > >> _______________________________________________ > > > > >> OSRM-talk mailing list > > > > >> [email protected] > > > > >> https://lists.openstreetmap.org/listinfo/osrm-talk > > > > >> > > > > >> > > > > > > > > > > _______________________________________________ > > > > > OSRM-talk mailing list > > > > > [email protected] > > > > > https://lists.openstreetmap.org/listinfo/osrm-talk > > > > > > > > > > > > > > > > > _______________________________________________ > > > > OSRM-talk mailing list > > > > [email protected] > > > > https://lists.openstreetmap.org/listinfo/osrm-talk > > > > > > > > > -- > > > michal palenik > > > www.freemap.sk > > > www.oma.sk > > > > > > _______________________________________________ > > > OSRM-talk mailing list > > > [email protected] > > > https://lists.openstreetmap.org/listinfo/osrm-talk > > > > > > _______________________________________________ > > OSRM-talk mailing list > > [email protected] > > https://lists.openstreetmap.org/listinfo/osrm-talk > > > -- > michal palenik > www.freemap.sk > www.oma.sk > > _______________________________________________ > OSRM-talk mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/osrm-talk >
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