[GRASS-user] Merging connected stream lines

[Huidae Cho]

It's working great! Thanks for the quick implementation. It will help a lot!

Huidae

On Fri, Oct 27, 2017 at 3:58 PM, Markus Metz <markus.metz.giswork at gmail.com>
wrote:

>
>
> On Fri, Oct 27, 2017 at 2:38 PM, Huidae Cho <grass4u at gmail.com> wrote:
> >
> > [...] I tried your r.stream.extract to extract stream lines and its
> output makes much more sense. It would be great if this module also outputs
> unique stream "network" numbers.
>
> Unique stream network numbers are added as new attribute "network" in
> trunk r71599.
>
> Markus M
> >
> > Thanks.
> > Huidae
> >
> >
> > On Fri, Oct 27, 2017 at 8:14 AM, Markus Metz <
> markus.metz.giswork at gmail.com> wrote:
> >>
> >>
> >>
> >> On Fri, Oct 27, 2017 at 12:52 PM, Huidae Cho <grass4u at gmail.com> wrote:
> >> >
> >> > Actually, I'm getting the same error as Markus in the NC dataset. I
> recently discleaned and rebuilt the latest SVN.
> >>
> >> In trunk, this bug appeared with r71267 and was fixed with r71477.
> >> In relbr72, this bug appeared with r71268 and was fixed with r71478.
> >>
> >> Please check your revision.
> >>
> >> Markus M
> >>
> >> >
> >> > Huidae
> >> >
> >> > On Thu, Oct 26, 2017 at 4:14 PM, Markus Metz <
> markus.metz.giswork at gmail.com> wrote:
> >> >>
> >> >>
> >> >>
> >> >> On Thu, Oct 26, 2017 at 5:02 PM, Markus Neteler <neteler at osgeo.org>
> wrote:
> >> >> >
> >> >> > On Thu, Oct 26, 2017 at 9:58 AM, Stefan Blumentrath
> >> >> > <Stefan.Blumentrath at 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 at lists.osgeo.org
> >> >> > https://lists.osgeo.org/mailman/listinfo/grass-user
> >> >>
> >> >>
> >> >> _______________________________________________
> >> >> grass-user mailing list
> >> >> grass-user at lists.osgeo.org
> >> >> https://lists.osgeo.org/mailman/listinfo/grass-user
> >> >
> >> >
> >
> >
>
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