[postgis-users] PostGIS Topology with Z coordinate

Berchet, Adrien adrien.berchet at forcity.com
Mon Jan 14 01:51:42 PST 2019

I see, thank you very much for these enlightenments.
I think it would be nice to add this support to PostGIS. I think it is
possible to mix PostGIS Topology and PgRouting to get a similar result so
maybe it does not worth it. I will try such a mix when I have some time.
Thanks again,

Le jeu. 10 janv. 2019 à 11:49, Sandro Santilli <strk at kbt.io> a écrit :

> On Thu, Jan 10, 2019 at 10:44:01AM +0100, Berchet, Adrien wrote:
> > So is it possible to manage a kind of multilayer topology, to manage
> > bridges and tunnels in a network for exemple?
> You'll need different topologies, one for each layer.
> But what you're really looking for is what ISO defines
> as "Network Topology", which doesn't forces nodes on
> intersections. That model is currently NOT implemented
> in PostGIS but if I'm not mistaken latest spatialite
> implements it. Want to port it over ?
> --strk;
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