[pgrouting-dev] Routing instructions/Nav directions on pgRouting

[Stephen Woodbridge]

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

-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>>
>
>
>
>
>     On Thu, Nov 28, 2013 at 8:43 PM, Paulo Figueiras <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
>
>             - The other way is to have an external service to do that,
>         such as, 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>
>     Web: http://georepublic.de <http://georepublic.de/>
>
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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/>____
>
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