[pgrouting-users] Problem with query

[Vicky Vergara]

Worh:
latest version is always best, so v2.2.3.
thanks
Vicky



On Fri, Jul 1, 2016 at 11:11 AM, Worth Lutz <wal3 at mindspring.com> wrote:

> Hi Vicky,
>
> How can I tell which ones to use?
>
> I've got v2.2.3 of pgRouting.
> *Worth Lutz*
>
>
> On 7/1/2016 11:45 AM, Vicky Vergara wrote:
>
> Hello Worth,
>
> Unfortunately pgr_bddijkstra has bugs.
> I must tell you the history of pgRouting so that you can understand why:
> V2.0 was to gather and reorganize the functions of pgRouting, preparing
> for a rewrite, to remove bugs, and unify internal code.
> V2.x are rewrites of functions, we are gradually rewriting the functions
> and we are basically starting with the ones that are c++
> boost::graph::function based.
> pgr_bdDijkstra is not one of them.
>
>
> If you can this issue to the issue list:
> https://github.com/pgRouting/pgrouting/issues
> with your data and queries, so that we are able to reproduce,
> and when time comes we have a test case when doing the rewrite of that
> function.
>
> Vicky
>
>
> On Fri, Jul 1, 2016 at 10:08 AM, Worth Lutz <wal3 at mindspring.com> wrote:
>
>> Hi All,
>>
>> Can anyone explain the strange results (see below) I'm getting?
>>
>> ~$ apt-show-versions postgresql
>> postgresql:all/trusty-updates 9.3+154ubuntu1 uptodate
>>
>> ~$ apt-show-versions postgis
>> postgis:amd64/trusty 2.1.4+dfsg-3~trusty uptodate
>>
>> ~$ apt-show-versions postgresql-9.3-pgrouting
>> postgresql-9.3-pgrouting:amd64/trusty 2.2.3-release-ppa1~trusty1 uptodate
>>
>>
>> The first query gives me 4 values and the second has the 'id2' value
>> empty.
>>
>> SELECT
>>     pgr_bdDijkstra(
>>     'SELECT id_base AS id, source, target, cost_len AS cost, rcost_len AS
>> reverse_cost FROM _rt_geom_streets_base',
>>     11, 6, TRUE, TRUE
>>   );
>>          pgr_bddijkstra
>> ---------------------------------
>>  (0,11,2087858,482.722955703)
>>  (1,3549,2082803,275.837140233)
>>  (2,24976,2086339,272.953707069)
>>  (3,20623,2086101,484.096255058)
>>  (4,48115,2085508,388.315542378)
>>  (5,47218,2084557,480.30350456)
>>  (6,8387,2094458,476.8149761)
>>  (7,248,2093906,255.35844989)
>>  (8,1348,2097029,247.294429215)
>>  (9,1536,2090136,339.718631568)
>>  (10,6465,2091005,330.978413622)
>>  (11,3740,2087980,415.137012292)
>>  (12,1504,2095856,375.236169771)
>>  (13,1505,2090458,466.482679764)
>>  (14,1130,2089855,481.831396537)
>>  (15,1116,2089664,470.256648783)
>>  (16,1117,2139494,262.774003918)
>>  (17,2907,2139496,73.1337200735)
>>  (18,765,2131538,172.32970181)
>>  (19,6,-1,0)
>> (20 rows)
>>
>>
>> SELECT *
>>   FROM
>>
>> pgr_bdDijkstra(
>>
>>     'SELECT id_base AS id, source, target, cost_len AS cost, rcost_len AS
>> reverse_cost FROM _rt_geom_streets_base',
>>     11, 6, TRUE, TRUE
>>   );
>>  seq |  id1  | id2 |     cost
>> -----+-------+-----+---------------
>>    0 |    11 |     | 482.722955703
>>    1 |  3549 |     | 275.837140233
>>    2 | 24976 |     | 272.953707069
>>    3 | 20623 |     | 484.096255058
>>    4 | 48115 |     | 388.315542378
>>    5 | 47218 |     |  480.30350456
>>    6 |  8387 |     |   476.8149761
>>    7 |   248 |     |  255.35844989
>>    8 |  1348 |     | 247.294429215
>>    9 |  1536 |     | 339.718631568
>>   10 |  6465 |     | 330.978413622
>>   11 |  3740 |     | 415.137012292
>>   12 |  1504 |     | 375.236169771
>>   13 |  1505 |     | 466.482679764
>>   14 |  1130 |     | 481.831396537
>>   15 |  1116 |     | 470.256648783
>>   16 |  1117 |     | 262.774003918
>>   17 |  2907 |     | 73.1337200735
>>   18 |   765 |     |  172.32970181
>>   19 |     6 |     |             0
>> (20 rows)
>>
>>
>>
>>
>> --
>> *Worth Lutz*
>>
>>
>>
>> _______________________________________________
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>> Pgrouting-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/pgrouting-users
>>
>
>
>
> --
>
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>
> Vicky Vergara
> Operations Research
>
> eMail: vicky at georepublic.de
> Web: https://georepublic.info
>
> Tel: +49 (089) 4161 7698-1
> Fax: +49 (089) 4161 7698-9
>
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-- 

Georepublic UG (haftungsbeschränkt)
Salzmannstraße 44,
81739 München, Germany

Vicky Vergara
Operations Research

eMail: vicky at georepublic.de
Web: https://georepublic.info

Tel: +49 (089) 4161 7698-1
Fax: +49 (089) 4161 7698-9

Commercial register: Amtsgericht München, HRB 181428
CEO: Daniel Kastl
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