[GRASS-dev] Re: [GRASS GIS] #957: v.voronoi has extra lines in output

GRASS GIS trac at osgeo.org
Tue Sep 20 09:59:29 EDT 2011


#957: v.voronoi has extra lines in output
-----------------------+----------------------------------------------------
 Reporter:  helena     |       Owner:  grass-dev@…              
     Type:  defect     |      Status:  new                      
 Priority:  major      |   Milestone:  6.4.2                    
Component:  Vector     |     Version:  svn-develbranch6         
 Keywords:  v.voronoi  |    Platform:  All                      
      Cpu:  All        |  
-----------------------+----------------------------------------------------

Comment(by mmetz):

 Replying to [comment:8 mlennert]:
 > Replying to [comment:7 mmetz]:
 > > Please try trunk r48378. This fixes the extra lines.
 > >
 > > The holes reported by Helena are a different problem, a floating point
 precision error somewhere. Snapping the result, e.g.
 {{{
 > > v.voronoi in=elev_lid792_randpts out=elev_lid792_randpts_voronoi
 > > v.clean in=elev_lid792_randpts_voronoi
 out=elev_lid792_randpts_voronoi_snap tool=snap thresh=0.0000001
 type=boundary
 }}}
 > > solves some but not all errors.
 >
 > For me this solves both my bugs and the one reported by Helena (when
 going through the extra snap step), i.e. no more extra lines and no holes
 (after snapping).

 Proper cleaning (a bit more than snapping) is now built into v.voronoi,
 trunk r48382. The result from v.voronoi in=elev_lid792_randpts
 out=elev_lid792_randpts_voronoi is now 100% ok.

 Markus M

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/957#comment:19>
GRASS GIS <http://grass.osgeo.org>



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