[GRASS-dev] Re: [GRASS GIS] #1594: 180 meridian and r.proj

[GRASS GIS]

#1594: 180 meridian and r.proj
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 Reporter:  awickert          |       Owner:  grass-dev@…              
     Type:  defect            |      Status:  new                      
 Priority:  normal            |   Milestone:                           
Component:  Raster            |     Version:  6.4.1                    
 Keywords:  r.proj, meridian  |    Platform:  Linux                    
      Cpu:  x86-64            |  
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Comment(by hamish):

 Replying to [comment:1 hamish]:
 > hmmm, I've never seen this problem with raster maps and I'm at
 > 170E longitude. If a reprojection hits a singularity typically
 > you know about it immediately with a flood of warning messages.

 ... which is typically only a problem with a one-way projection like
 Winkel Tripel. Unlike r.proj, v.proj uses a forward projection and in
 those cases the work-around is to do `r.to.vect feature=point`, v.proj,
 then `v.out.ascii | r.in.xyz`. Can't recall if I ever wrote an addon
 script to automate that.


 Hamish

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Ticket URL: <https://trac.osgeo.org/grass/ticket/1594#comment:2>
GRASS GIS <http://grass.osgeo.org>