[pgrouting-users] Question to dijkstra-algorithm

Anton Patrushev anton at orkney.co.jp
Mon Oct 19 00:56:27 EDT 2009


Hi Kai,

Thanks a lot for the contribution! We are currently a little bit busy
with FOSS4G conference (I wish you guys were here), so I couldn't
write before.

Steve, we don't have FAQ page, but anybody can edit wiki pages, so
probably that's time to create one :)

Anton.

On Sat, Oct 17, 2009 at 1:22 AM, Stephen Woodbridge
<woodbri at swoodbridge.com> wrote:
> Kai,
>
> Thanks! this is a good explaination of how things work and how one might
> work around oddities like the one you ran into.
>
> I would be nice if Kai's pages were linked to a FAQ of some other
> support info.
>
> Thanks again,
>   -Steve
>
> Kai Behncke wrote:
>> Dear users,
>>
>>> meanwhile I get deeper and deeper in pgrouting, but there is still one problem:
>>
>>
>>> You can see here, that with pg_dijkstra not the "real" shortest ways is visualized:
>>
>>> http://www.kneipenculture.de/not_the_shortest_way.png
>>
>>
>>> Well, of course, for pgdijkstra this is the shortest (it goes from startedge[source]=8079 to endedge[target]=8326.
>>
>>> But I would like to get the "green" route (and not the red one).
>>
>>> What would you recommend?
>>
>>
>> that problem is solved now, a description of that can be found here:
>>
>> http://pgrouting.postlbs.org/wiki/killing_some_bugs
>>
>> (well it wasn`t a bug of pgrouting, it was more a bug of the tutorial).
>>
>> here:
>> http://pgrouting.postlbs.org/wiki/killing_some_bugs_source_code
>>
>> and here:
>>
>> http://pgrouting.postlbs.org/wiki/killing_some_bugs_source_code_explanation
>>
>> Best regards, Kai
>>
>>
>>
>>
>
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