[GRASS-user] Export of GeoTIFF

[Michael Barton]

ESRI needs special GeoTiff options to be enabled. These are documented on
the r.out.gdal manual page--near the bottom where I missed them too awhile
back.

Michael


On 10/9/07 11:58 PM, "christian.braun at tudor.lu" <christian.braun at tudor.lu>
wrote:

> 
> Dear list, 
> 
> I have serious problems exporting GRASS DCELL rasters to GeoTIFF.
> I used r.out.gdal with type=Float32 and set the compression to LZW.
> What I got later on in ArcView 3.3 is pure noise fort he picture and in ArcGIS
> 9.2 I get some strange results.
> The NULL values of the picture get a cryptic code like -1#QUAN1 and if there
> are pixels with value 0 they become NoData in ArcGIS.
> 
> I need to have them as GeoTIFFs for the easy im- and export. I am aware that I
> can also use r.out.ascii but then I have to do an import procedure in ArcGIS.
> For nearly 1000 images that is a bit hard to do.
> 
> Any hints for the export options?
> 
> Thx in advance, 
> Christian 
> 
> 
> _________________________________________
> 
> Dipl. Geogr. Christian Braun
> Tel: +352- 425991-608
> Mobil: +49-179-6845896
> Mail: christian.braun at tudor.lu
> 
> Resource Centre for Environmental Technologies,
> Public Research Centre Henri Tudor,
> Technoport Schlassgoart,
> 66 rue de Luxembourg,
> P.O. BOX 144,
> L-4002 Esch-sur-Alzette, Luxembourg


__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton


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