[pgrouting-users] Error message- isring() should only be called on a LINE

[Julien Lacroix]

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 at lists.osgeo.org
 > http://lists.osgeo.org/mailman/listinfo/pgrouting-users
 >

- -- 
Georepublic UG & Georepublic Japan
eMail: daniel.kastl at georepublic.de
Web: http://georepublic.info
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