[GRASS-user] Importing Eosat landsat imagery - errors

[Markus Neteler]

Bill,

On Thu, Oct 23, 2008 at 6:18 PM, William Hudspeth
<bhudspeth at edac.unm.edu> wrote:
> Hello,
>
> I am trying to r.in.gdal to import an Eosat Fast formatted Landsat image
> into GRASS 6.1 (running on SUSE Linux 10.1). It requires pointing to the

(please consider to update to a more recent version)

> dataset header file as input, and specification of the band that is to
> be imported. I get the error message:
>
> Input map is rotated - cannot import. You may use 'gdalwarp' to
> transform the map to North-up.
>
> I have looked into the documentation of gdalwarp, but it is not clear to
> me how I go about rotating the image to North-up. Does anyone have
> experience with the parameters/arguments necessary to transform the
> image using gdalwarp before import into GRASS?

It is pretty straight-forward:

gdalwarp rotated.tif northup.tif

That's (usually) it - you may optimize with some gdalwarp parameters.

The newer manuals mention this:
"Error Messages"
"ERROR: Input map is rotated - cannot import." ..
http://grass.osgeo.org/grass64/manuals/html64_user/r.in.gdal.html

Hope this helps,
Markus