[GRASS-user] How to assign costs to nodes using v.net.distance

Moritz Lennert mlennert at club.worldonline.be
Tue Apr 2 06:33:15 PDT 2013

On 01/04/13 18:20, דור פרידמן wrote:
> Thanks Markus.
> It might be valuable to add an option to assign costs to the destination
> nodes, either for my purpose when there is an actual gate fee that
> influence the total cost (e.g. waste management, national parks and
> reserves) or when the "gate fee" or nodes cost represent other factors
> that influence an individual decisions, i.e. external costs that
> describe socio-environmental parameters, such as: level of crime,
> general maintenance, scenery, number of shops in a commercial center,
> hospitals reliability and quality etc.
> I will appreciate if you could direct me to the place I can ask for an
> improvement of the v.net.distance tool.
> Regarding to the current analysis, I have though of two solutions and
> would like to get your (and all others) idea about it:
>  1. Follow Markus's original suggestion to perform the analysis using
>     v.net.allpairs - which will be easy to the empirical anlysis using
>     excel, but more complex to create a map for the final shortest distance.

v.net.allpairs produces a vector map of all shortest paths. You just 
have to extract those you need.


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