[postgis-users] Checking Road Network Topology

[Rémi Cura]

Yeah sure , it was discussed on the user list :

http://lists.osgeo.org/pipermail/postgis-users/2014-November/039758.html

I personnaly tried the grass v.clean and it is fast and efficient (altough
the grass UI is terrible in my opinion)

Cheers,
Rémi-C

2015-01-21 14:05 GMT+01:00 Miller, Stephan <smille12 at harris.com>:

>  Thanks.   I will look into GRASS.
>
>
>
> Can you send a pointer to the blog where this topic was discussed?
>
>
>
> Thanks,
>
>
>
> Steve
>
>
>
> *From:* Rémi Cura [mailto:remi.cura at gmail.com]
> *Sent:* Wednesday, January 21, 2015 3:11 AM
> *To:* PostGIS Users Discussion; Miller, Stephan
> *Subject:* Re: [postgis-users] Checking Road Network Topology
>
>
>
> Hey,
>
> we previously discussed this matter of cleaning topology.
>
> Postgis topology is about iso topology storage and use, not cleaning.
>
> There are dedicated and powerfull tools for this (like Grass
> <http://grass.osgeo.org/grass70/manuals/v.clean.html>).
>
> Cheers,
> Rémi-C
>
>
>
> 2015-01-20 21:26 GMT+01:00 Sandro Santilli <strk at keybit.net>:
>
> On Tue, Jan 20, 2015 at 07:45:47PM +0000, Miller, Stephan wrote:
>
> > I am attempting to validate the topology of
> > a dense road network ( 1.2 Million roads)
> ...
> > Everything appears to be flagged as an error; the ValidateTopology call
> returns nothing.
>
> You mean _no_ record got imported ?
> Can you share the dataset ?
> What's the output of "SELECT postgis_full_version()" ?
>
> --strk;
>
>   ()   Free GIS & Flash consultant/developer
>   /\   http://strk.keybit.net/services.html
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>
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