[Geotiff] DEM in a GeoTIFF

[Mike]

Thanks, that appears to work at doing the conversion but it appears 
the the user needs to know that it is a DEM.  Also, vertical units 
aren't encoded in any way as far as I can see.

I know that TIFF and GeoTIFF are really just encoding the data.  I'm 
just surprised that there isn't a standard GeoTIFF tag/key for 
indicating the nature of the data.  Am I missing something?

--Mike

> 
> I've used gdal_translate for that task.
> 
> <URL:http://www.remotesensing.org/gdal/gdal_utilities.html>
> 
> 
> -- Chuck Taylor
> 
> 
> 
> On 22 Nov 2004 at 17:22, Mike wrote:
> 
> > We're looking to optionally encode DEM data in a GeoTIFF but have 
not 
> > found much in the way of information on this.  Encoding the data 
> > itself isn't a problem but encoding the tags correctly is a 
concern.  
> > We also have DEMs where the horizontal and vertical units are 
> > different and want to preserve that data.
> > 
> > Can anyone point us to example GeoTIFF DEMs or any "standards" for 
> > encoding this type of data in a GeoTIFF?
> > 
> > Thanks,
> > --Mike
> > _______________________________________________
> > Geotiff mailing list
> > Geotiff at remotesensing.org
> > http://xserve.flids.com/mailman/listinfo/geotiff
> > 
> 
> 
> 
> 

--