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<TITLE>GeoTiffs shifted by 360 degrees after processing in GRASS</TITLE>
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<P><FONT SIZE=2 FACE="Arial">Dear all,</FONT>
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<P><FONT SIZE=2 FACE="Arial">I have a set of GeoTiffs that I import into GRASS to do some processing and export them afterwards as GeoTiffs again. The problem now is that GRASS exports the images shifted by 360 degrees to the east.</FONT></P>
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<P><FONT SIZE=2 FACE="Arial">Corner Coordinates (before the import into GRASS):</FONT>
<BR><FONT SIZE=2 FACE="Arial">Upper Left (-180.0044643, 75.0044643) (180d 0'16.07"W, 75d 0'16.07"N)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lower Left (-180.0044643, -56.0044643) (180d 0'16.07"W, 56d 0'16.07"S)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Upper Right ( 179.9955353, 75.0044643) (179d59'43.93"E, 75d 0'16.07"N)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lower Right ( 179.9955353, -56.0044643) (179d59'43.93"E, 56d 0'16.07"S)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Center ( -0.0044645, 9.5000000) ( 0d 0'16.07"W, 9d30'0.00"N)</FONT>
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<P><FONT SIZE=2 FACE="Arial">Corner Coordinates (after the export from GRASS):</FONT>
<BR><FONT SIZE=2 FACE="Arial">Upper Left ( 179.9955357, 75.0044643) (179d59'43.93"E, 75d 0'16.07"N)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lower Left ( 179.9955357, -56.0044643) (179d59'43.93"E, 56d 0'16.07"S)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Upper Right ( 539.996, 75.004) (539d59'43.93"E, 75d 0'16.07"N)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Lower Right ( 539.996, -56.004) (539d59'43.93"E, 56d 0'16.07"S)</FONT>
<BR><FONT SIZE=2 FACE="Arial">Center ( 359.996, 9.500) (359d59'43.93"E, 9d30'0.00"N)</FONT>
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<P><FONT SIZE=2 FACE="Arial">Has someone of you faced a similar problem? How do I receive a proper georeference when exporting from GRASS?</FONT>
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<P><FONT SIZE=2 FACE="Arial">The input GeoTiffs are a set of converted Spot-Veg HDF files using GDAL. The -180.0044... degrees for the upper left X seems a bit odd, but GDAL imports the Spot-Veg properly with these coordinates. I checked the images in Erdas and they are correct. I also checked the corner coordinates of the imported file insight GRASS and also here the coordinates are correct. So apparently the shift occurs during the export from GRASS into GeoTiff. At the moment I solve the problem by reassigning the georeference to the GeoTiff after the export from GRASS, but I would be more happy with properly exported images right away.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Can someone help please?</FONT>
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<P><FONT SIZE=2 FACE="Arial">Thank you,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Dorit</FONT>
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