[GRASS-dev] [GRASS GIS] #331: extend the vector modell to be able to calculate real circular segments and circles => for calculating real circular buffers of points

GRASS GIS trac at osgeo.org
Fri Oct 10 18:24:18 EDT 2008


#331: extend the vector modell to be able to calculate real circular segments and
circles => for calculating real circular buffers of points
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 Reporter:  mlechner                          |       Owner:  grass-dev at lists.osgeo.org
     Type:  enhancement                       |      Status:  new                      
 Priority:  major                             |   Milestone:  7.0.0                    
Component:  default                           |     Version:  unspecified              
 Keywords:  vector model curve circle buffer  |    Platform:  Unspecified              
      Cpu:  Unspecified                       |  
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 It would be interesting to extend the grass vector model to be able to
 construct curves for using them to create real circular buffers instead of
 approximating them using several vertices.

 I just was wondering - isn't it more effectice saving a buffer using one
 vertice and a "curved line" than using several points and approximate the
 circle.

 An appproximated buffer could still be in the data - only newly calculated
 buffers are more correct then.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/331>
GRASS GIS <http://grass.osgeo.org>


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