[postgis-users] Road Network Graph creation

[Daniel Kastl]

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
>
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