[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"
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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 |
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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?
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Ticket URL: <http://trac.osgeo.org/grass/ticket/2055#comment:1>
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