[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
--------------------------+-------------------------------------

Comment (by lucadelu):

 Not able to replace the previous diff... here your are the working one


 {{{
 Index: scripts/v.rast.stats/v.rast.stats.py
 ===================================================================
 --- scripts/v.rast.stats/v.rast.stats.py        (revision 71311)
 +++ scripts/v.rast.stats/v.rast.stats.py        (working copy)
 @@ -31,6 +31,11 @@
  #% key: c
  #% description: Continue if upload column(s) already exist
  #%end
 +#%flag
 +#% key: d
 +#% label: Create densified lines (default: thin lines)
 +#% description: All cells touched by the line will be set, not only those
 on the render path
 +#%end
  #%option G_OPT_V_MAP
  #%end
  #%option G_OPT_V_FIELD
 @@ -131,8 +136,17 @@

      grass.message(_("Preprocessing input data..."))
      try:
 -        grass.run_command('v.to.rast', input=vector, layer=layer,
 output=rastertmp,
 -                          use='cat', quiet=True)
 +        from grass.pygrass.vector import VectorTopo
 +        inmap = VectorTopo(vector)
 +        inmap.open('r')
 +        nlines = inmap.num_primitive_of('line')
 +        # Create densified lines rather than thin lines
 +        if flags['d'] and nlines > 0:
 +            grass.run_command('v.to.rast', input=vector, layer=layer,
 output=rastertmp,
 +                              use='cat', flags='d', quiet=True)
 +        else:
 +            grass.run_command('v.to.rast', input=vector, layer=layer,
 output=rastertmp,
 +                              use='cat', quiet=True)
      except CalledModuleError:
          grass.fatal(_("An error occurred while converting vector to
 raster"))

 }}}

 Now working on testsuite and later, if it works, I will commit the changes

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3357#comment:6>
GRASS GIS <https://grass.osgeo.org>