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<TITLE>Re: [GRASS-user] Export of GeoTIFF</TITLE>
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<FONT FACE="Verdana, Helvetica, Arial"><SPAN STYLE='font-size:12.0px'>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.<BR>
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Michael<BR>
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On 10/9/07 11:58 PM, "christian.braun@tudor.lu" <christian.braun@tudor.lu> wrote:<BR>
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Dear list, <BR>
<BR>
I have serious problems exporting GRASS DCELL rasters to GeoTIFF. <BR>
I used r.out.gdal with type=Float32 and set the compression to LZW. <BR>
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. <BR>
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. <BR>
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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. <BR>
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Any hints for the export options? <BR>
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Thx in advance, <BR>
Christian <BR>
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_________________________________________<BR>
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Dipl. Geogr. Christian Braun<BR>
Tel: +352- 425991-608<BR>
Mobil: +49-179-6845896<BR>
Mail: christian.braun@tudor.lu<BR>
<BR>
Resource Centre for Environmental Technologies,<BR>
Public Research Centre Henri Tudor,<BR>
Technoport Schlassgoart,<BR>
66 rue de Luxembourg,<BR>
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__________________________________________<BR>
Michael Barton, Professor of Anthropology<BR>
Director of Graduate Studies<BR>
School of Human Evolution & Social Change <BR>
Center for Social Dynamics & Complexity<BR>
Arizona State University<BR>
<BR>
phone: 480-965-6213<BR>
fax: 480-965-7671<BR>
www: <a href="http://www.public.asu.edu/~cmbarton">http://www.public.asu.edu/~cmbarton</a> <BR>
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