[GRASSLIST:6169] Re: raster import - getting started

[Glynn Clements]

Kirk R. Wythers wrote:

> I've installed grass5 on a bsd system. I have set up the directories and
> am following the direction in Neteler's book to import some georectified
> tiffs. I am just playing around here as I learn my way around grass...
> 
> If I use: r.in.tiff input=/home/kwythers/tmp/DRG1643.TIF output=drg1643
> 
> I get the error:
> /home/kwythers/tmp/DRG1643.TIF: Warning, unknown field with tag 33550
> (0x830e) ignored.
> /home/kwythers/tmp/DRG1643.TIF: Warning, unknown field with tag 33922
> (0x8482) ignored.
> /home/kwythers/tmp/DRG1643.TIF: Warning, unknown field with tag 34735
> (0x87af) ignored.

These may be harmless.

> ERROR: Only handle 1-channel gray scale or 3-channel color.

This isn't. TIFF supports many different image formats; r.in.tiff only
handles some of them. The tiffinfo utility should tell you exactly
what sort of TIFF file you have.

> If I try r.in.gdal input=/home/kwythers/tmp/DRG1643.TIF output=drg1643
> 
> I get the error:
> GBBridgeInitialize() failed to find an suitable GDAL .DLL/.so file.
> The following filenames were searched for:
>   o libgdal.1.1.so
>   o gdal.1.0.so
>   o gdal.so.1.0
>   o libgdal.so.1
> 
> The following locations were searched:
>   o /usr/local/grass5/lib
>   o System default locations.
> 
> 
> System default locations may be influenced by:
> LD_LIBRARY_PATH = /usr/local/grass5/lib
> ERROR: Unable to initialize GDAL bridge (check libgdal
>        installation/LD_LIBRARY_PATH variable).
> 
> I am obviously missing something extremely simple. Can anyone straighten
> me out here?

r.in.gdal needs the GDAL library (libgdal), but it failed to load it
(either because it couldn't find it, or because there's a problem with
it). Note that, by default, r.in.gdal loads libgdal dynamically, so
you can compile r.in.gdal without having libgdal installed, but you
can't actually run it without libgdal.

-- 
Glynn Clements <glynn.clements at virgin.net>