routing

[Paolo Cavallini]

Thanks to all who responded. Quite reassuring to see that the solution I had 
in mind are those you suggested. 
I never used the pg module; is it possible to define only one start and end 
point, or can I select multiple points?
I have cursorily read the README, but could not find it.
As Stephan pointed out, I would be inclined towards GRASS, but the database 
approach seems more compact. Anybody has tried both methods, and can 
arguments about respective merits?
Again, many thanks.
pc

At 12:40, mercoledì 21 settembre 2005, Norman Barker has probably written:
> -----Original Message-----
> Paolo,
>
> there is a brillant postgres extension called "pgdijkstra" from
> camp2camp. You need postgres 8.0. It delivers an algorythm for
> calculating the shortest path - you also may alter this by other
> attributes, because you are in the database.
>
> It's a horror to get the first data into the db (I can help) - if once
> done it is quite easy and afterwards it's easy to handle.
>
> Till

-- 
Paolo Cavallini
cavallini at faunalia.it   cavallini at jabber.org www.faunalia.it
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