[GRASS-dev] Re: [GRASS GIS] #608: GIS.m: Lat/Lon support broken in Map Display zooms

GRASS GIS trac at osgeo.org
Wed Sep 16 13:04:48 EDT 2009

#608: GIS.m: Lat/Lon support broken in Map Display zooms
  Reporter:  hamish   |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect   |      Status:  closed                   
  Priority:  blocker  |   Milestone:  6.4.0                    
 Component:  Tcl      |     Version:  svn-develbranch6         
Resolution:  fixed    |    Keywords:  gis.m, LL                
  Platform:  All      |         Cpu:  All                      
Comment (by cmbarton):


 I guess I didn't get enough coffee this morning...

 Let me know what you think of the fixes. I have an alternate idea for
 fixing this, but can't guarantee that it will give any better results,
 especially after looking at the behavior in the wx GUI. Zoom out beyond a
 width of 360 degrees is likely to always be squirrelly because the
 coordinates wrap back around a cylindrical earth map rather than extend in
 endlessly increasing/decreasing values as you expand east and west in a
 projection like UTM.


Ticket URL: <https://trac.osgeo.org/grass/ticket/608#comment:8>
GRASS GIS <http://grass.osgeo.org>

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