[GRASS-dev] Re: [GRASS GIS] #1300: WxGUI measure tool gives wrong results

[GRASS GIS]

#1300: WxGUI measure tool gives wrong results
--------------------------+-------------------------------------------------
 Reporter:  marisn        |       Owner:  martinl            
     Type:  defect        |      Status:  assigned           
 Priority:  blocker       |   Milestone:  6.4.1              
Component:  wxGUI         |     Version:  svn-releasebranch64
 Keywords:  measure tool  |    Platform:  MSWindows Vista    
      Cpu:  Unspecified   |  
--------------------------+-------------------------------------------------

Comment(by martinl):

 Replying to [comment:9 hamish]:

 > thanks, that passes the 'd.grid 5000' test in spearfish,simple_xy loc'ns
 + latest 6.5svn. no difference with using the 'constrain' tick box in
 prefs AFAICT.

 backported in  r45891

 > lat/lon is still reporting meaningless results, in grass7 it should use
 m.measure to do the calc so geodesic distance is automatically used if
 needed.

 probably we should warn user about that. Would be

 {{{
 Warning: Measuring reports meaningless results for LL projection (geodetic
 distance ignored). Check future versions.
 }}}

 be OK?

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1300#comment:10>
GRASS GIS <http://grass.osgeo.org>