[GRASS-user] Copy raster map from one unprojected location to another

[Johannes Radinger]

Thanks for your ideas.
I tried the pack-unpack approach. However, it seems that I can unpack and
import the raster map,
as there is no PROJ-file associated with that map. Here the error when
unpacking the *.pack that
was created in an unprojected location.

r.unpack --overwrite
input=/media/grassgis_data/tmp/tmp_Cele_raster_pack/my_raster.pack
output=my_raster
Traceback (most recent call last):
  File "/usr/local/grass-7.0.1svn/scripts/r.unpack", line
146, in <module>
    sys.exit(main())
  File "/usr/local/grass-7.0.1svn/scripts/r.unpack", line
104, in main
    proj=True):
  File
"/usr/local/grass-7.0.1svn/etc/python/grass/script/core.py",
line 863, in compare_key_value_text_files
    checkunits=units)
  File
"/usr/local/grass-7.0.1svn/etc/python/grass/script/core.py",
line 790, in _text_to_key_value_dict
    text = open(filename, "r").readlines()
IOError: [Errno 2] No such file or directory: 'PROJ_INFO'

So maybe I need to go with the geotiff-approach. Is there any reason why
there is no PROJ for an
unprojected location? Wouldn't it also make sense to define a EPSG-code for
such special type of "projection"?

/Johannes

On Thu, Mar 19, 2015 at 11:30 AM, Benjamin Ducke <benducke at fastmail.fm>
wrote:

> On Thu, Mar 19, 2015, at 11:25, Roy wrote:
> > Hi,
> >
> >
> >
> > Il 19/03/2015 11:04, Johannes Radinger ha scritto:
> > >  Of course, I could export the map to geotiff and import them in the
> > > other location;
> >
> > IMHO this is the simpler way,
>
> Bad idea. You will lose all associated metadata: colour table,
> categories,
> editing history, maybe even the correct cell stats and no data code.
>
> GRASS raster maps are sets of files that are unfortunately
> a little spread out over several subdirectories in the mapset directory.
>
> To copy the entire collection of files that constitutes a GRASS raster
> map from one place to another, use:
>
> http://grass.osgeo.org/grass64/manuals/r.pack.html
>
> and the associated r.unpack.
>
> Best,
>
> Ben
>
>
> >
> > Roy.
> > _______________________________________________
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> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
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