[postgis-users] Road Network Graph creation

[Jaak Laineste]

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

Phone: +372 777 8800

Mobile: +372 509 2586

Skype: nutiteq

 

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