[GRASS-dev] [GRASS GIS] #2473: v.net connection operation
GRASS GIS
trac at osgeo.org
Fri Nov 7 02:32:57 PST 2014
#2473: v.net connection operation
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Reporter: matmar | Owner: grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone: 7.0.0
Component: Vector | Version: svn-trunk
Keywords: v.net | Platform: Linux
Cpu: Unspecified |
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Comment(by mlennert):
Replying to [ticket:2473 matmar]:
> Hi all,
>
> I'm not able to connect points with the nearest line segment in a line
vector using v.net.
>
> v.net connects a line vector with the points in a point vector file. The
connection process follows the category progress so the output is not the
fittest solution for a network distance analysis as the one I need to
perform.
>
> Following, the commands to reproduce the issue in nc_spm_08_grass7:
>
> {{{
> g.region vect=roadsmajor
> v.mkgrid map=points_grid -p position=region grid=20,20
> v.net input=roadsmajor points=points_grid out=roads_to_points
operation=connect threshold=5000 --o
> }}}
>
> plot:
>
> {{{
> d.mon wx0
> d.vect roads_to_points
> d.vect points_grid col=red display=cat
>
> }}}
>
> Is there a way to connect each point to the nearest original road
segment?
Use the '-s' flag (Snap points to network) available in grass7.
Moritz
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Ticket URL: <http://trac.osgeo.org/grass/ticket/2473#comment:1>
GRASS GIS <http://grass.osgeo.org>
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