[GRASS-dev] [GRASS GIS] #2055: r.in.gdal lacks flag "-r Limit import to the current region"

GRASS GIS trac at osgeo.org
Sun Aug 4 14:28:50 PDT 2013


#2055: r.in.gdal lacks flag "-r Limit import to the current region"
-------------------------+--------------------------------------------------
 Reporter:  neteler      |       Owner:  grass-dev@…              
     Type:  enhancement  |      Status:  new                      
 Priority:  normal       |   Milestone:  7.0.0                    
Component:  Raster       |     Version:  svn-trunk                
 Keywords:  r.in.gdal    |    Platform:  Unspecified              
      Cpu:  Unspecified  |  
-------------------------+--------------------------------------------------

Comment(by mmetz):

 Replying to [ticket:2055 neteler]:
 > While v.in.ogr offers "-r   Limit import to the current region"
 > the module r.in.gdal does not.
 >
 v.in.ogr -r imports all features that overlap with the current region. The
 result might thus have extents extending beyond the current region, which
 makes sense.

 Translated to raster import, I see a disadvantage when limiting the import
 to the current region: for a given project, raw data are commonly coming
 from different sources with different extents and resolution. You would
 then need to use one of the r.resamp.* modules to resampling raw data to
 the current region, and r.resamp.* modules typically extend the current
 region by the margin required for resampling (if not nn). Limiting the
 import to the current region followed by resampling would thus eat away
 rows and columns at the region's borders.

 What would be the advantage of r.in.gdal -r?

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/2055#comment:1>
GRASS GIS <http://grass.osgeo.org>



More information about the grass-dev mailing list