[postgis-users] routing using PostGIS
strk at refractions.net
strk at refractions.net
Fri Nov 26 02:25:51 PST 2004
On Fri, Nov 26, 2004 at 08:22:17AM -0200, Eduardo Patto Kanegae wrote:
> Hi folks,
>
> I'm interesting on implementing Dijkstra algorithm into PostGIS/PostGreSQL using PL/PGSQL
>
> Does anybody has experience with this algorithm ? I mean, does it have possible constraints that could avoid PL/PGSQL implementation?
>
> cheers
It'll be hell implementing it in PL/PGSQL.
You don't have easy vertex access, you'd have to extract that info
parsing WKT (or in the best case HEXWKB - with postgis-1.0).
I suggest you do it in C using the new api found in CVS.
--strk;
>
> Eduardo Patto Kanegae
> http://www.webmapit.com.br
> ICQ: 303747254
>
> Treinamento em UMN MapServer - http://www.webmapit.com.br/ptbr/?menuoption=mapserver
> Fórum MapServer Brasil - http://mapserver.cttmar.univali.br/forum
>
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