[GRASS-dev] Re: [GRASS GIS] #426: v.in.ogr: split long boundaries

GRASS GIS trac at osgeo.org
Mon Mar 2 00:39:51 EST 2009

#426: v.in.ogr: split long boundaries
  Reporter:  neteler      |       Owner:  grass-dev at lists.osgeo.org
      Type:  enhancement  |      Status:  new                      
  Priority:  major        |   Milestone:  6.5.0                    
 Component:  Vector       |     Version:  unspecified              
Resolution:               |    Keywords:                           
  Platform:  All          |         Cpu:  All                      
Comment (by hamish):

 Replying to [comment:6 mmetz]:
 > After lots of testing and debugging with the help of Markus
 > Neteler, I would like to add boundary splitting in trunk and
 > maybe in devbr6, but want to ask first about how to implement it:
 > 1) enable boundary splitting by default, disable with new flag.
 > That's my favorite.

 it would be nice to keep a method to import exact data, even if splitting
 will be the default.

 how would it be split? after a certain number of vertices of a polyline
 like v.split or every "n" map units in a grid like v.in.gshhs?

 note v.generalize currently requires to run v.build.polylines first to get
 correct output. I don't know if that is a feature or a bug.
 but if breaking polylines was the default for v.in.ogr it could become a
 widespread subtle problem for it.


Ticket URL: <http://trac.osgeo.org/grass/ticket/426#comment:9>
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