[pgrouting-users] TSP and how to contribute
emrekoch at gmail.com
Fri Jan 14 03:07:40 EST 2011
Here is my sql query for that image.
SELECT edges.gid, ST_AsText(edges.the_geom) AS geotext,
(SELECT edge_id, cost FROM driving_distance('SELECT gid as id,
meters::double precision as cost
FROM edges', $startVertexID, $cost,false,false)
) as rt
I just give a sample vertex id and a cost value in meters and got resulting
edges. Normally when I find shortest paths all roads are connected so the
graph is ok. But this driving directions does not output connected roads,
thats the thing I do not understand.
On Fri, Jan 14, 2011 at 5:26 AM, Daniel Kastl <daniel at georepublic.de> wrote:
>> I checked driving directions functionality and seems like the feature that
>> I was looking for. But It returns non connected edges which are close by a
>> cost. Do you know how does this function really work ? Here is my screenshot
>> http://db.tt/0bb62XB. Shouldn't the output be connected ?
> Could you tell us what you did exactly? The query for example.
> Georepublic UG & Georepublic Japan
> eMail: daniel.kastl at georepublic.de
> Web: http://georepublic.de
> Pgrouting-users mailing list
> Pgrouting-users at lists.osgeo.org
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