[GRASS-dev] [GRASS GIS] #2473: v.net connection operation

[GRASS GIS]

#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 matmar):

 Replying to [comment:1 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

 Hi Moritz,

 -s glues points to the nearest network segment but doesn't connect each
 point to the nearest network segment (so I lose information). I attached a
 drawing about what I meant, hoping it helps.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2473#comment:2>
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