I understand but my question was (sorry if it was unclear), why is it different between train and bus?
2018-05-01 10:02 GMT-04:00 Michal Palenik <[email protected]>: > On Tue, May 01, 2018 at 09:30:36AM -0400, Patrick Agin wrote: > > Thanks Michal and Daniel for your help, I defined my subway profile and > it > > works well. > > > > Michal, can I ask you why you use this kind of code for the train > profile: > > train = way:get_value_by_key('train'); > > if ( not data. train or data. train =='') then return false; > > this checks way's tags > > > > > and this kind of code for the bus: > > bus = get_from_rel(relations, way, "route", "bus", "route"); > > if ( not data.bus =='') then return false; > > this one checks relations' tags (of relations that the way is a member > of) > > > Aren't they defined the same way in osm data? > > Patrick > > > > 2018-04-30 13:26 GMT-04:00 Patrick Agin <[email protected]>: > > > > > 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 > > >> > > > > > > > > > _______________________________________________ > > 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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