[pgrouting-users] pgRoutgin segment aggregation

[Daniel Kastl]

On Mon, Mar 25, 2013 at 9:09 PM, Jakub Krawczyk <krj29b at gmail.com> wrote:

> Hello. I'm using pgRouting for traffic congestion analysis. After
> gathering enough data I'd like to display estimated traffic congestion via
> Google Maps API using pgRouting edges geometries as reference. How can I
> aggregate pgRouting edges to segments representing larger road sections,
> eg. between two major intersections?
>

You could use ST_Union to aggregate geometries, but you need to be able to
define where a major intersection is.
For example you could loop through your result and when there is a change
of a road name, you would start a new aggregation.

Daniel






>
> _______________________________________________
> Pgrouting-users mailing list
> Pgrouting-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/pgrouting-users
>
>


-- 
Georepublic UG & Georepublic Japan
eMail: daniel.kastl at georepublic.de
Web: http://georepublic.de
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/pgrouting-users/attachments/20130326/f759d438/attachment.html>