[GRASS-dev] [GRASS GIS] #1653: Trunkated cellsize when exporting rasters to arc ascii grid (r.out.arc)

GRASS GIS trac at osgeo.org
Wed May 9 14:56:10 EDT 2012


#1653: Trunkated cellsize when exporting rasters to arc ascii grid (r.out.arc)
--------------------------------------+-------------------------------------
 Reporter:  reymondin                 |       Owner:  grass-dev@…              
     Type:  defect                    |      Status:  new                      
 Priority:  major                     |   Milestone:  6.4.3                    
Component:  Raster                    |     Version:  svn-trunk                
 Keywords:  arc ascii grid r.out.arc  |    Platform:  Unspecified              
      Cpu:  Unspecified               |  
--------------------------------------+-------------------------------------
 When exporting rasters to arc ascii grid (r.out.arc) , the cellsize and
 the corners coordinates in the header are truncated after only 6 decimals.
 This should not happen as it moves the region.

 This could be because when the header is written the following line is
 used to print the cell size (from source
 http://trac.osgeo.org/grass/browser/grass/trunk/raster/r.out.arc/main.c,
 line 159)

 fprintf(fp, "cellsize %f\n", cellsize);

 On some systems the %f flag will set the number of decimals to 6.

 Best,
 Louis

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1653>
GRASS GIS <http://grass.osgeo.org>



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