[GRASS-dev] [GRASS GIS] #678: wxgui digitizer: wrong coordinates after zoom to named region

[GRASS GIS]

#678: wxgui digitizer: wrong coordinates after zoom to named region
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 Reporter:  mlennert                      |       Owner:  grass-dev at lists.osgeo.org
     Type:  defect                        |      Status:  new                      
 Priority:  normal                        |   Milestone:  6.4.0                    
Component:  wxGUI                         |     Version:  6.4.0 RCs                
 Keywords:  wxgui digitizer named region  |    Platform:  Linux                    
      Cpu:  Unspecified                   |  
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 Using the wxGUI digitizer, I have observed the following problem:

 - launch digitalisation of a new vector map
 - zoom to named region
 - digitize feature
 - feature is placed at wrong location, i.e. not in the area visible in the
 screen.

 I can produce this with nc_spm_06 dataset:

 - create named region with:

 North:      223800
 South:      222810
 West:       635560
 East:       637070

 - launch wxgui digitizer and create new vector map
 - zoom to named region created above
 - draw a line across the screen

 The line seems to disappear, but by zooming out you can see that it is
 placed elsewhere. It's bounding box as given by v.info is:

 N:   222110
 S:   221279
 E:   637424
 W:   637342

 When I do not use a named region, but zoom by hand to the same area, I do
 not see the same problem.

 Moritz

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Ticket URL: <http://trac.osgeo.org/grass/ticket/678>
GRASS GIS <http://grass.osgeo.org>