Hi, It works fine for me:
GRASS 7.2.1svn (nc_spm_08_grass7): > v.net.components input=roadsmajor output=roadsmajor_components method=strong Building graph... Registering arcs... 100% Flattening the graph... Graph was built Computing strongly connected components... Writing output... 100% Building topology for vector map <roadsmajor_components@stefan.blumentrath>... Registering primitives... 355 primitives registered 55717 vertices registered Building areas... 100% 0 areas built 0 isles built Attaching islands... Attaching centroids... 100% Number of nodes: 266 Number of primitives: 355 Number of points: 0 Number of lines: 355 Number of boundaries: 0 Number of centroids: 0 Number of areas: 0 Number of isles: 0 v.net.components complete. Found 7 components. On: GRASS 7.2.1svn (nc_spm_08_grass7): > g.version -g version=7.2.1svn date=2017 revision=r70326 build_date=2017-01-10 build_platform=x86_64-pc-linux-gnu build_off_t_size=8 Cheers Stefan From: grass-user [mailto:grass-user-boun...@lists.osgeo.org] On Behalf Of Huidae Cho Sent: fredag 27. oktober 2017 12.52 To: Markus Metz <markus.metz.gisw...@gmail.com> Cc: GRASS user list <grass-user@lists.osgeo.org> Subject: Re: [GRASS-user] Merging connected stream lines Actually, I'm getting the same error as Markus in the NC dataset. I recently discleaned and rebuilt the latest SVN. Huidae On Thu, Oct 26, 2017 at 4:14 PM, Markus Metz <markus.metz.gisw...@gmail.com<mailto:markus.metz.gisw...@gmail.com>> wrote: On Thu, Oct 26, 2017 at 5:02 PM, Markus Neteler <nete...@osgeo.org<mailto:nete...@osgeo.org>> wrote: > > On Thu, Oct 26, 2017 at 9:58 AM, Stefan Blumentrath > <stefan.blumentr...@nina.no<mailto:stefan.blumentr...@nina.no>> wrote: > > Hi, > > > > Did you try: > > > > https://grass.osgeo.org/grass72/manuals/v.net.components.html > > > > That might give you a common attribute for all connected lines in your > > network… > > I just tried that with NC but: > > GRASS 7.3.svn (nc_spm_08_grass7):~ > v.net.components input=roadsmajor > output=roadsmajor_components method=strong > Building graph... > Registering arcs... > 100% > Flattening the graph... > ERROR: GngFlatten error > > > GRASS 7.3.svn (nc_spm_08_grass7):~ > v.net.components input=railroads > output=railroads_components method=strong > Building graph... > Registering arcs... > 100% > Flattening the graph... > ERROR: GngFlatten error > > Does the network need any special treatment? I can not reproduce these errors. Please update your local copy: make distclean svn --no-ignore status svn up configure make Markus M > > Markus > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org<mailto:grass-user@lists.osgeo.org> > https://lists.osgeo.org/mailman/listinfo/grass-user _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org<mailto:grass-user@lists.osgeo.org> https://lists.osgeo.org/mailman/listinfo/grass-user
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