id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,cpu,platform 906,r.out.gdal (VRT) broken output,epifanio,grass-dev@…,"tring to generate a VRT file using r.out.gdal i get a broken file (not loadable in ossim and qgis) using gdal_translate i get a different results. using r.out.gdal r.out.gdal input=geology at PERMANENT format=VRT type=Byte output=name.vrt r.out.gdal input=geology at PERMANENT format=VRT type=Byte output=name.vrt Exporting to GDAL data type: Byte Checking GDAl data type and nodata value Input raster map contains cells with NULL-value (no-data). The value 255 will be used to represent no-data values in the input map. You can specify a nodata value with the nodata option. Exporting to GDAL raster ERROR 1: Writing through VRTSourcedRasterBand is not supported. Unable to write GDAL raster file Unable to export raster map r.out.gdal complete. (Thu Feb 4 00:53:22 2010) Command finished (0 sec) i get this output : ############################################# PROJCS["UTM Zone 13, Northern Hemisphere",GEOGCS["clark66",DATUM["North_American_Datum_1927",SPHEROID["Clarke_1866",6378206.4,294.9786982]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["meter",1]] 5.9001000000000000e+05, 1.0000000000000000e+01, 0.0000000000000000e+00, 4.9280000000000000e+06, 0.0000000000000000e+00, -1.0000000000000000e+01 2.55000000000000E+02 Palette ############################################# this output is different from the gdal output : gdal_translate -of VRT /Users/sasha/Downloads/spearfish60/PERMANENT/cellhd/geology /Users/sasha/Desktop/geology.vrt ############################################# PROJCS["UTM Zone 13, Northern Hemisphere",GEOGCS["clark66",DATUM["North_American_Datum_1927",SPHEROID["Clarke_1866",6378206.4,294.9786982]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["meter",1]] 5.9000000000000000e+05, 1.0000000000000000e+02, 0.0000000000000000e+00, 4.9280000000000000e+06, 0.0000000000000000e+00, -1.0000000000000000e+02 0 0.00000000000000E+00 Palette /Users/sasha/Downloads/spearfish60/PERMANENT/cellhd/geology 1 ############################################# the grass output doesn't include : ... it is missed and tring to load the output in ossim or qgis it is not displayed. from a chat on #gdal seems the problem is related to the ""create_copy()"" usage .. but i'm not able to debug it. thanks! Massimo. ",defect,new,normal,6.5.0,Default,svn-develbranch6,,,,x86-64,MacOSX