[pgrouting-users] pgr_analyzegraph indcates I have some Potential gaps found near dead ends, how do I find them

[Vicky Vergara]

What I mean is that maybe you have like the example on the docuemntation

1, 2,    1,  1, 130, 100,   0.5, 3.5,  1.999999999999,3.5),

the

1.999999999999

is almost 2, but its not a 2, so if another segment start on (2, 3.5) then
1) unless if you don't use a tolerance to assign source and target values
both vertices will have a different id
2) if you assign a tolerance then both vertices will have the same id, but
note that for one id there would be two different values on the geometry,
if you also want to "fix" the geometry then that is done with PostGIS





On Mon, May 21, 2018 at 8:13 AM, Dave Potts <mrdapotts at gmail.com> wrote:

> I assume you mean something like a multi line string with a hole in it !
>
>
> On 21 May 2018 at 13:42, Vicky Vergara <vicky at georepublic.de> wrote:
>
>> Those are geometry gaps, so maybe you can ask on postGIS
>>
>> On Sun, May 20, 2018 at 12:16 PM, Dave Potts <mrdapotts at gmail.com> wrote:
>>
>>> Hi List
>>>
>>> I am playing around with pgr_analyzegraph, its told me I have
>>>
>>> Dead ends: 7
>>> Potential gaps found near dead ends: 3
>>>
>>> In a network of 7000 vertexs finding Potential gaps in a map that I did
>>> not generate is going to be hard, is there anyway of get pgroute to
>>> actually tell me were these problems are?
>>>
>>>
>>> _______________________________________________
>>> Pgrouting-users mailing list
>>> Pgrouting-users at lists.osgeo.org
>>> https://lists.osgeo.org/mailman/listinfo/pgrouting-users
>>>
>>
>>
>>
>> --
>>
>> 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
>>
>>
>>
>> _______________________________________________
>> Pgrouting-users mailing list
>> Pgrouting-users at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/pgrouting-users
>>
>
>
> _______________________________________________
> Pgrouting-users mailing list
> Pgrouting-users at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/pgrouting-users
>



-- 

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/pgrouting-users/attachments/20180524/3f4472ae/attachment.html>