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<div dir="ltr">Hi folks,<br><br>I might be wrong, but it looks like the VRT driver is not supporting RAT at this moment (TRUNK).<br><br>Is that correct? <br><br>A simple way to test it is by "gdal_translating" that file "i8u_c_i.img" from autotest to VRT:<br><br>$ gdal_translate -of vrt i8u_c_i.img vrt_i8u_c_i.vrt<br>$ gdalinfo vrt_i8u_c_i.vrt -noct<br><br>The RAT is not there.<br><br>That wouldn't be a big problem by itself, the real problem is that gdal_translate uses an internal VRT to support several options. And I am trying to fix that ticket: <a href="http://trac.osgeo.org/gdal/ticket/5200" target="_blank">http://trac.osgeo.org/gdal/ticket/5200</a> and I noticed that when I use *-a_nodata* the GetDefaultRAT() it returns null.<br><br>Drivers that implement *file based* GDALPamDataset doesn't seems to have that problem because they don't need to call GetDefaultRAT(). Examples:<br><br>$ gdal_translate -of gtiif i8u_c_i.img gtiff_i8u_c_i.tif -a_nodata 0<br>$ gdal_translate -of gtiif i8u_c_i.img gtiff_i8u_c_i.tif<br><br>The RAT is transferred to the geotiff file in both instances.<br><br>Is that something we would like to get fix in VRT?<br><br>Best regards,<br><br>Ivan<br><br><br><br></div>
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