routing

Till Adams adams at TERRESTRIS.DE
Thu Sep 22 03:31:03 EDT 2005


Paolo Cavallini wrote:
> 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
> 
> 
Dear Paolo,

no, I just trried the postgre method, but holl at gdf-hannover.de did this 
with GRASS - ask him ;-)


-- 

Mit freundlichen Grüssen aus Bonn,

Till Adams

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