[pgrouting-dev] Routing instructions/Nav directions on pgRouting
Stephen Woodbridge
woodbri at swoodbridge.com
Thu Nov 28 08:26:57 PST 2013
On 11/28/2013 11:14 AM, Paulo Figueiras wrote:
> Hello, Stephen.
>
> It was a wild shot, but I was already expecting that. I already saw the
> wiki page.
>
> Well, thanks anyway, and I'll keep working on this. Maybe I will have to
> do a driving directions procedure myself :) If I manage to do something
> nice, I'll share it with the guys in the mailing list.
I'm will to work with you to add something generic to pgRouting, I just
don't have time to do 100% of it myself. The coding part is not too hard
once you have worked out a design, and then the documentation and test
cases take a lot of time.
If you have questions feel free to ask.
-Steve
> Thanks again, Stephen, Daniel.
>
> Regards,
>
>
> 2013/11/28 Stephen Woodbridge <woodbri at swoodbridge.com
> <mailto:woodbri at swoodbridge.com>>
>
> Hi Paulo,
>
> Sorry, the implementation that I have is was developed for a
> specific client and is very much tied to their data and table
> structure and I am not allow to distribute it.
>
> I have written up how to do this on a wiki page here:
> https://github.com/pgRouting/__pgrouting/wiki/Driving-__Direction-Instructions
> <https://github.com/pgRouting/pgrouting/wiki/Driving-Direction-Instructions>
>
> -Steve
>
>
> On 11/28/2013 9:42 AM, Paulo Figueiras wrote:
>
> Hello, Daniel.
>
> Thank you for your quick reply. Well, for now I wouldn't want to
> enrol
> myself in such an endeavor :) . I would prefer to use something
> that is
> already done, even if it is much simpler than other routing engines'
> driving instructions.
> I was reading one thread of your mailing list where you guys
> talk about
> the solution presented by Stephen Woodbridge, using iMapTools,
> and I was
> wondering if Stephen's algorithm is accessible for use, or if it
> is a
> private solution.
>
> Do you know anything about this subject? Thank you very much.
>
> Regards,
>
> Paulo.
>
>
> 2013/11/28 Daniel Kastl <daniel at georepublic.de
> <mailto:daniel at georepublic.de>
> <mailto:daniel at georepublic.de <mailto:daniel at georepublic.de>>__>
>
>
>
>
>
> On Thu, Nov 28, 2013 at 8:43 PM, Paulo Figueiras
> <paf at uninova.pt <mailto:paf at uninova.pt>
> <mailto:paf at uninova.pt <mailto:paf at uninova.pt>>> wrote:
>
> Greetings.
>
> I am a portuguese developer and I just started using
> pgRouting
> as my routing engine. I chose it because it is very
> flexible and
> scalable, and it is based on a relational database.
>
> This offers me other types of functionalities that normal
> routing engines don't.
>
> Even so, I need a higher-level functionality, namely route
> instructions or navigation directions, that pgRouting
> does not
> provide for now (I think).
>
> I read some forum posts from people that had the same
> problem as
> me. Some of them are really old (more than 2 years). I
> found two
> ways of doing that:
>
> - One way is to implement a instruction algorithm,
> such as
> the one described here:
> http://lists.osgeo.org/__pipermail/pgrouting-users/__2011-January/000537.html
> <http://lists.osgeo.org/pipermail/pgrouting-users/2011-January/000537.html>
>
> - The other way is to have an external service to
> do that,
> such as,
> http://techbase.kde.org/__Projects/Marble/__RoutingInstructions
> <http://techbase.kde.org/Projects/Marble/RoutingInstructions>
>
> Now, my question is that neither one of the approaches
> to having
> navigation directions from a pgRouting route is
> optimized or
> well documented.
>
> Are there any new alternatives to these two approaches?
> If not,
> is there a more developed solution to the route
> instructions
> issue (commonly called Driving Directions issue) ?
>
>
> Hi Paulo,
>
> As you have already said, this question came up quite a few
> times
> already.
> I think the reason, why there is no out-of-the-box solution
> yet, is,
> that it is very difficult (probably impossible) to provide
> this kind
> of driving instructions in a way that it works for any
> (road) network.
> And beside the variety of data there are also lots of
> languages.
>
> If you (or someone else) is able to draft a concept how to
> produce
> driving directions in a smart way, that it does not depend on a
> specific dataset or language, then such a functionality
> would be a
> valuable contribution ... which might even attract some
> funding ;)
>
> Regards,
> Daniel
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> --
> Georepublic UG & Georepublic Japan
> eMail: daniel.kastl at georepublic.de
> <mailto:daniel.kastl at georepublic.de>
> <mailto:daniel.kastl at __georepublic.de
> <mailto:daniel.kastl at georepublic.de>>
> Web: http://georepublic.de <http://georepublic.de/>
>
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> --
>
> Paulo Figueiras <paf at uninova.pt <mailto:paf at uninova.pt>
> <mailto:%3Crddc at uninova.pt <mailto:3Crddc at uninova.pt>>>______
>
> cid:image002.jpg at 01C8AEC7.__2F6E45A0 <http://www.uninova.pt/>____
>
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>
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> --
>
> Paulo Figueiras <paf at uninova.pt <mailto:%3Crddc at uninova.pt>>____
>
> cid:image002.jpg at 01C8AEC7.2F6E45A0 <http://www.uninova.pt/>____
>
> __ __
>
>
>
> UNINOVA, Centre of Technology and Systems
> Campus da Caparica, Quinta da Torre
> 2829-516 Monte Caparica, PORTUGAL____
>
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> http://www.uninova.pt/
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