[postgis-users] Issue in getting Dijkstra result

[Supunmali Ahangama]

Thanks for the quick reply.

I did try with different nodes sets, but still I get the same issue. Even
when I tried from node 1 to node 3 (which has a connecting path), its still
the same (no result).

I did attach the shape file. It would be greatly appreciated if you can help
on this.

http://www.nabble.com/file/p25801461/roads.zip roads.zip 


Anton Patrushev-2 wrote:
> 
> Hi,
> 
> It is difficult to say why you got empty result. Probably there is no
> any way between nodes 1 and 14, or probably there is something wrong
> with your data. If your data is not very big, you can post it here.
> 
> Anton.
> 
> On Thu, Oct 8, 2009 at 10:25 AM, Supunmali Ahangama
> <supunmali7 at gmail.com> wrote:
>>
>> Hi,
>>
>> I am doing an application to find the optimal path using Dijkstra
>> function
>> in pgrouting. I created the topology for the road data. It didnt give any
>> exception and did work fine when i did it through pgAdmin111 (create
>> source
>> node, target node for each edge and vertices_tmp).
>>
>> But when i did run the
>>
>>
>>            DROP TABLE IF EXISTS dijsktra_result;
>>
>> CREATE TABLE dijsktra_result(gid int4) with oids;
>>
>> SELECT AddGeometryColumn('dijsktra_result', 'the_geom', '-1',
>> 'LINESTRING',
>> 2);
>>
>> INSERT INTO dijsktra_result(the_geom)
>>
>>            SELECT the_geom FROM dijkstra_sp('edgesnew', 1, 14);
>>
>>
>> This runs (without any error), but it don't affect any rows. There is
>> nothing in the created table dijsktra_result.
>>
>> What should I need to do get the results?
>>
>>
>> --
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>>
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