[GRASS-dev] [GRASS GIS] #2529: v.dissolve only dissolve attribute table but not topology

GRASS GIS trac at osgeo.org
Fri Jan 9 01:12:57 PST 2015

#2529: v.dissolve only dissolve attribute table but not topology
 Reporter:  hellik    |       Owner:  grass-dev@…              
     Type:  defect    |      Status:  new                      
 Priority:  critical  |   Milestone:  7.0.0                    
Component:  Vector    |     Version:  unspecified              
 Keywords:  dissolve  |    Platform:  MSWindows Vista          
      Cpu:  x86-32    |  

Comment(by mmetz):

 Replying to [comment:4 hellik]:
 > Replying to [comment:1 neteler]:
 > > Can you upload the map (v.pack) or generate a reproducible example?
 > tried after cleaning the example:
 v.clean input=streams_oneline_quads at user1
 output=streams_oneline_quads_clean type=point,line,area
 tool=snap,break,rmdupl thres=0.01,0.01,0.01

 v.dissolve --verbose input=streams_oneline_quads_clean at user1 column=dis
 > it doesn't help

 You need to specify the feature type to be cleaned:

 v.clean type=boundary

 I do not understand why this is needed, but this helps.

Ticket URL: <http://trac.osgeo.org/grass/ticket/2529#comment:5>
GRASS GIS <http://grass.osgeo.org>

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