[postgis-users] Road Network Graph creation
Daniel Kastl
orkney at gmx.de
Sun Jul 5 18:23:24 PDT 2009
Hi Jaak,
If you need to get the network graph of OSM data you can use osm2pgrouting:
http://pgrouting.postlbs.org/wiki/tools/osm2pgrouting
Currently it doesn't work with large amount of data.
Contributions are always welcome ;-)
Daniel
Jaak Laineste schrieb:
>
> Hi,
>
> This function assumes that the road network is already segmented. If
> I have otherwise topologically good network, but without properly
> segmented streets (e.g. like in OSM Shapefiles), then it does not work.
>
>
>
> Best solution would be to have similar extended postgis or pgrouting
> function to do it. Or is there any other good (and free) tool to do it?
>
>
>
> /Jaak
>
>
>
>
>
> Re: [postgis-users] Road Network Graph creation
>
> Daniel Kastl
> Sun, 28 Jun 2009 17:17:33 -0700
>
>
>
> You need to look for the assign_vertex_id function of pgRouting.
> This function creates a network topology.
>
> Daniel
>
>
> Ben Madin schrieb:
>
> Short Answer - Yes - but of course it depends on the quality of your
> shapefile as to how useful it is.
>
>
> Have a look at : http://pgrouting.postlbs.org/
>
> cheers
>
> Ben
>
>
>
>
> On 28/06/2009, at 11:09 PM, Sandeep Kumar Jakkaraju wrote:
>
> Hello All
>
>
> Is there any way I can create a road network graph (nodes,edges) from
> a road shapefile ?
>
> --
> Thanks
> Regards
>
> Sandeep Kumar Jakkaraju
>
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>
>
> /Jaak Laineste
>
> jaak at nutiteq.com
>
> www.nutiteq.com
>
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>
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>
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