As Daniel stated, data is crucial to the success of a routing project. The problem is not to have the road names (usually that is standart) but to have turn tables and correct information about street flow.<br><br>pgRouting will provide you what you need for it, but your dataset must be good.<br>
<br>George<br><br><div class="gmail_quote">On Wed, Feb 24, 2010 at 12:12 AM, Daniel Kastl <span dir="ltr"><<a href="mailto:daniel@georepublic.de">daniel@georepublic.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi Olivier,<br><br>Stephen used pgRouting and implemented driving directions.<br>You can see his demo here: <a href="http://gis.imaptools.com/routing/leaddog/?zoom=10&lat=33.85667&lon=35.52978&layers=B0TTTF&start=35.492313%2033.826188&stop=35.595811%2033.906827&method=STS&lang=eng" target="_blank">http://gis.imaptools.com/routing/leaddog/?zoom=10&lat=33.85667&lon=35.52978&layers=B0TTTF&start=35.492313%2033.826188&stop=35.595811%2033.906827&method=STS&lang=eng</a><br>
<br>The problem with driving directions is, that its implementation depends very much on the data you have. For Japanese data for example road names are usually missing, so you need to think about a different way how to describe the route. Also some data sets provides more some data sets have less attributes.<br>
pgRouting is "only" the library to provide shortest path search functions. <br><br>Here is a wiki page about driving directions of the OpenStreetMap project. <br><a href="http://wiki.openstreetmap.org/wiki/Sample_driving_instructions" target="_blank">http://wiki.openstreetmap.org/wiki/Sample_driving_instructions</a><br>
If you're going to use OSM data, this might be helpful.<br><br>I must admit that some instructions on the pgRouting wiki regarding driving directions with different data sets would be nice. <br><br>Daniel<br><br><br>
<br>
<div class="gmail_quote">2010/2/24 Martin Fafard <span dir="ltr"><<a href="mailto:martin.fafard@geoprojection.com" target="_blank">martin.fafard@geoprojection.com</a>></span><div class="im"><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">
Hi<br>
<br>
Snowmobile trails, Quebec: <a href="http://www.fcmq.qc.ca/cartes/en/" target="_blank">http://www.fcmq.qc.ca/cartes/en/</a><br>
<br>
Martin F<br>
<br>
Olivier Kouame a écrit :
<blockquote type="cite">
<pre>Hi all,
Sorry if this has been brought up before but I've been looking for a
project that provides driving directions on top of postgis/pgrouting.
I've found quite a few discussions about it and sites that have
implemented it but couldn't find anything actually production-ready.
I'm thinking of starting a new project to provide this functionality
and would really appreciate any suggestions / advice / code examples
that would help get this started. Or if anyone knows of an existing
project that provides this, even better!
Thanks
_______________________________________________
postgis-users mailing list
<a href="mailto:postgis-users@postgis.refractions.net" target="_blank">postgis-users@postgis.refractions.net</a>
<a href="http://postgis.refractions.net/mailman/listinfo/postgis-users" target="_blank">http://postgis.refractions.net/mailman/listinfo/postgis-users</a>
</pre>
<pre><hr width="90%" size="4">
Ce message entrant est certifie sans virus connu.
Analyse effectuee par AVG - <a href="http://www.avg.fr" target="_blank">www.avg.fr</a>
Version: 9.0.733 / Base de donnees virale: 271.1.1/2705 - Date: 02/23/10 02:34:00
</pre>
</blockquote>
</div>
<br>_______________________________________________<br>
postgis-users mailing list<br>
<a href="mailto:postgis-users@postgis.refractions.net" target="_blank">postgis-users@postgis.refractions.net</a><br>
<a href="http://postgis.refractions.net/mailman/listinfo/postgis-users" target="_blank">http://postgis.refractions.net/mailman/listinfo/postgis-users</a><br>
<br></blockquote></div></div><br><br clear="all"><br>-- <br>Georepublic UG (haftungsbeschränkt)<br>Salzmannstraße 44,<br>81739 München, Germany<br><br>eMail: <a href="mailto:daniel.kastl@georepublic.de" target="_blank">daniel.kastl@georepublic.de</a><br>
Web: <a href="http://georepublic.de" target="_blank">http://georepublic.de</a><br><br>Tel: +49 (089) 4161 7698-1<br>Fax: +49 (089) 4161 7698-9<br><br>Commercial register: Amtsgericht München, HRB 181428<br>CEO: Daniel Kastl<br>
<br><br>
<br>_______________________________________________<br>
postgis-users mailing list<br>
<a href="mailto:postgis-users@postgis.refractions.net">postgis-users@postgis.refractions.net</a><br>
<a href="http://postgis.refractions.net/mailman/listinfo/postgis-users" target="_blank">http://postgis.refractions.net/mailman/listinfo/postgis-users</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>George R. C. Silva<br><br>Desenvolvimento em GIS<br><a href="http://blog.geoprocessamento.net">http://blog.geoprocessamento.net</a><br>(34) 9664-3717<br>(34) 8843-3717<br>