[QGIS-trac] [Quantum GIS] #3162: GRASS raster display inaccurat

[Quantum GIS]

#3162: GRASS raster display inaccurat
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   Reporter:  grasslandtom                      |              Owner:  rugginoso    
       Type:  bug                               |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.6.0
  Component:  GRASS                             |            Version:  1.5.0        
   Keywords:  GRASS raster                      |   Platform_version:  11.1         
   Platform:  SuSE                              |           Must_fix:  No           
Status_info:  0                                 |  
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 A GRASS raster displayed in QGIS changes it's position relative to other
 layers when the map is moved with the mouse. I see this while doing the
 following:[[BR]]
 _ in QGIS: add a GRASS polygon vector layer (let's call it poly)[[BR]]
 _ in GRASS: `v.to.rast poly use=cat out=poly_rast'[[BR]]
 _ in QGIS: add GRASS raster layer poly_rast[[BR]]
 _ now move the map around with the mouse and watch the coloured areas of
 raster cells move around within the polygons they were made of.

 I have the same polygon in PostGIS. When I add this too, the two vectors
 do not move relative to each other. So seems to be the raster which is
 displayed inaccurately. In my case it shifts several meters within a
 Gauß-Krüger (Zone 4) projection. The raster cell-size is 2 m.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3162>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS viewer/editor supporting OGR, PostGIS, and GRASS formats