[GRASS-dev] [GRASS GIS] #3357: v.rast.stats: add support for -d flag (densified lines)

[GRASS GIS]

#3357: v.rast.stats: add support for -d flag (densified lines)
--------------------------+-------------------------------------
  Reporter:  veroandreo   |      Owner:  grass-dev@…
      Type:  enhancement  |     Status:  new
  Priority:  normal       |  Milestone:  7.2.2
 Component:  Vector       |    Version:  svn-trunk
Resolution:               |   Keywords:  v.rast.stats, v.to.rast
       CPU:  Unspecified  |   Platform:  Unspecified
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Comment (by mlennert):

 Replying to [comment:2 veroandreo]:
 > I applied the patch and tested both with polygons and lines vector maps.
 Using your example, I get the same warning (but I would say that's
 expected and correct behavior for polygons, i.e.: if line densification is
 used with polygons, adjacent polygons would have overlapping areas in the
 intermediate raster map).
 >
 > For a lines vector map, I get the following warning
 >
 > {{{
 > g.copy vector=railroads,myrailroads
 > v.rast.stats myrailroads raster=elevation column_prefix=elev
 method=average -d
 > WARNING: No areas selected from vector map <myrailroads>
 > }}}

 AFAICT this comes from the v.to.rast call. It is harmless, but probably a
 bit confusing. You should be able to solve this by adding a type parameter
 to v.rast.stats and send that to v.to.rast.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3357#comment:3>
GRASS GIS <https://grass.osgeo.org>