Hello Daniel,
i've run into the exact same error message today and in fact, my geom column is MULTILINESTRING.
Did i have to convert my edge geom to LINESTRING for using them proper in pgRouting?
Sincerely,
Julien
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Hi Bob,
The error complains, that "st_isRing(st_linemerge(geom))" should be
called on LINESTRING geometries only.
What is your geometry type of your "geom" column?
Is it MULTILINESTRING?
Best regards,
Daniel
On 06/10/15 06:07, Bistrais, Bob wrote:
> I am trying to build a statewide road network for analysis with
> pgRouting. I ran pgr_createTopology, and it reported OK.
>
> Next I tried to run pgr_analyzeGraph, and got an error.
>
> Here is the command I input:
>
> SELECT
> pgr_analyzeGraph('ng_roads',0.0001,the_geom:='geom',id:='gid',source:=
'sourceroute',target:='targetroute');
>
> And here is the error message:
>
> NOTICE: Analyzing for ring geometries. Please wait...
>
> ERROR: isring() should only be called on a LINE
>
> CONTEXT: SQL statement "SELECT count(*) FROM public.ng_roads
>
> WHERE true AND (true) and st_isRing(st_linemerge(geom))"
>
> PL/pgSQL function pgr_analyzegraph(text,double
> precision,text,text,text,text,text) line 309 at EXECUTE statement
>
> -What should I do about this? Can I still perform pgRouting
> analysis with these roads?
>
> _______________________________________________ Pgrouting-users
> mailing list Pgrouting-users@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/pgrouting-users
>
- -- Georepublic UG & Georepublic Japan
eMail: daniel.kastl@georepublic.de
Web: http://georepublic.info
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