[GRASSLIST:8211] Re: MrSID and incorporating the .sdw info into resulting GeoTiff.

[Tom Russo]

On Wed, Sep 07, 2005 at 05:46:00PM -0600, we recorded a bogon-computron collision of the <caumann at ualberta.ca> flavor, containing:
> I have a bunch of .sid files that I am converting to GeoTiffs.   How
> does one incorporate the spatial location information in their
> associated .sdw file into the associate .tiff file? 

Rename (or copy) the .sdw file to have the same name as the .tif you created, 
but with a .tfw suffix.  gdal_translate will know that it's the world file 
associated with your tif and use it.

I.e. 
mrsiddecode -i FILE.sid -o FILE.tif -of tifg    
cp FILE.sdw FILE.tfw
gdal_translate -of GTIFF -a_srs '+init=epsg:26712' \
        FILE.tif FILE.NAD27.tif

-- 
Tom Russo    KM5VY     SAR502  DM64ux         http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 
 "The only thing you can do easily is be wrong, and that's hardly
  worth the effort." -- Norton Juster