Hi Polygot, Thanks a lot for an insightful description of problem. I understand the challenges and requirements you mentioned and get the idea what is expected from this project. Especially determining and suggesting a path would be very useful. In coming days I would work on finding best solutions to the tasks and would present my idea for further feedback.
Regarding time zone, I live in Vancouver, Canada, not India :) Though time zones are still not favorable, they are touch helpful than that of India. I believe a hangout session or even a screen-cast video would be of immense help. A screen-cast video would be even better as I could go through it again if I need to and it would be flexible for you too. But again, I am fine with anything. Thanks again and looking forward to your reply. Vishal On Mon, Feb 15, 2016 at 11:52 AM, Jo <[email protected]> wrote: > I proposed to create the plugin as a GSoC project and I think it remains > valid as a proposal. The code written for Poland and another > proof-of-concept written in Python can serve as an 'inspiration', but the > best way would be to start mostly with a clean slate. > > We need a proper plugin to assist us with creating PT routes, just in > order to be able to maintain the routes we have and to create new ones. > > There are 2 problems with these routes: > - they are fragile, other editors don't always take them into > consideration when editing OSM data or understand them > - they are prone to change. Itineraries tend to change relatively often > > There is another problem: there are an enormous lot of them and manually > changing them when changing the underlying road network changes is a lot of > work. Most contributors get discouraged by this, which is understandable. > > So what do we need? > A tool to detect broken/interrupted route relations > A tool to mend existing relations. Sometimes they are broken because ways > are split and not all parts get (re)added. Sometimes they are > broken/interrupted because ways are recombined disregarding the relation, > so there is an 'overshoot' > A tool that can create (part of) a route between a series of stops. > Since I don't mind doing this once manually, my solution was as follows: > Try to find another relation with the same sequence of stops, that already > has an uninterrupted sequence of ways. > Figure out which of those ways lie between the first and last stop (for as > long a sequence as possible) and copy those ways over. > > The result of that 'exercise' is a route relations that was usually still > interrupted. For those stretches, it may make sense to try and determine a > plausible path, propose to the user and add to the route relation when OK, > try to figure ou another path if not. At some point give up and let the > user do it him/herself. The user can also accept a solution and then mend > it to what the bus actually does. > > If the user accepts a solution, apply it and do what is needed to the road > network (it's likely ways will have to be split). > > I'm willing to demonstrate all this during a hangout. Since you are in > India, time zones work against us... our European evening is very late at > night for you. I can also create a screencast video. > > Polyglot > > 2016-02-15 19:00 GMT+01:00 Daniel Koć <daniel@koć.pl>: > >> W dniu 15.02.2016 18:49, Vishal vijayvargiya napisał(a): >> >> post one on josm-dev mailing list. I hope project remains in >>> consideration and isn't closed, especially after discovery of existing >>> plugin for PT in polish cities :) >>> >> >> This plugin needs some love (at least making it more generic) and I'm not >> sure if this code is proper form - sometimes reimplementation is easier >> than just patching. Also I'm not sure if the main developer is still >> interested in this work. >> >> However the main idea (semi-automated routing through the known stops >> network) is a way to go - I don't remember now if it was me who have >> proposed this approach, but it's possible. =} >> >> >> -- >> "Завтра, завтра всё кончится!" [Ф. Достоевский] >> >> >> _______________________________________________ >> dev mailing list >> [email protected] >> https://lists.openstreetmap.org/listinfo/dev >> > > -- Vishal Vijayvargiya Graduate Student Computing Science Simon Fraser University
_______________________________________________ dev mailing list [email protected] https://lists.openstreetmap.org/listinfo/dev
