Hello, I am new with gdal, and it is my first post here.I have a gdal 1.8.0 installed on a cenOS Linux x86_64 ,with libtiff 3.9.4 and libgeotiff 1.3.0. I try the translation of a raster dataset to geotiff through a VRTRawRasterBand described in a VRT file using gdal_translate.
gdal_translate test.vrt test.tifThe VRT file includes a category list description that I would like to get in the resulting geotiff. The geotiff produced is correct but the only thing that is missing is the category names that I can't see with gdalinfo. It seems as if the category list was not managed, as the resulting file size is the same with and without the categorynames section in the VRT. I suspect my gdal installation or maybe I have a bad understanding of the way to manage this option.
Could somebody help to find an explanation ?
gdal-config --version 1.8.0 gdal-config --dep-libs-lsqlite3 -L/usr/lib64/lib -lexpat -lgif -ljpeg -L/export/util/libgeotiff-1.3.0/lib -lgeotiff -L/export/util/tiff-3.9.4/lib -ltiff -lpng -L/export/util/netcdf-3.6.2 -L/export/util/netcdf-3.6.2/lib -lnetcdf -lz -lpthread -lm -lrt -ldl -L/usr/kerberos/lib64 -lcurl -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lresolv -ldl -lidn -lssl -lcrypto -lz
gdalinfo t.tif
Driver: GTiff/GeoTIFF
Files: t.tif
Size is 3712, 3712
Coordinate System is:
PROJCS["Geostationary_Satellite",
GEOGCS["GCS_unnamed ellipse",
DATUM["D_unknown",
SPHEROID["Unknown",6378169,295.4880658970008]],
PRIMEM["Greenwich",0],
UNIT["Degree",0.017453292519943295]],
PROJECTION["Geostationary_Satellite"],
PARAMETER["central_meridian",0],
PARAMETER["satellite_height",35785831],
PARAMETER["false_easting",0],
PARAMETER["false_northing",0],
UNIT["Meter",1]]
Origin = (-5570248.832537000067532,5570248.832537000067532)
Pixel Size = (3000.403357000000142,-3000.403357000000142)
Metadata:
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=BAND
Corner Coordinates:
Upper Left (-5570248.833, 5570248.833)
Lower Left (-5570248.833,-5567248.429)
Upper Right ( 5567248.429, 5570248.833)
Lower Right ( 5567248.429,-5567248.429)
Center ( -1500.202, 1500.202)
Band 1 Block=3712x2 Type=Byte, ColorInterp=Palette
Color Table (RGB with 256 entries)
0: 100,100,100,255
....
Here is the VRT file content:
<VRTDataset rasterXSize="3712" rasterYSize="3712">
<GeoTransform>-5570248.832537, 3000.403357, 0.000000,
5570248.832537, 0.000000, -3000.403357</GeoTransform>
<SRS>PROJCS["Geostationary_Satellite",GEOGCS["GCS_unnamed
ellipse",DATUM["D_unknown",SPHEROID["Unknown",6378169,295.4880658970008]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Geostationary_Satellite"],PARAMETER["central_meridian",0],PARAMETER["satellite_height",35785831],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1]]</SRS>
<Metadata>
<MDI key="AREA_OR_POINT">Area</MDI>
</Metadata>
<Description>Cloud Type Layer</Description>
<VRTRasterBand dataType="Byte" band="1" subClass="VRTRawRasterBand">
<ColorInterp>Palette</ColorInterp>
<ColorTable>
<Entry c1="100" c2="100" c3="100"/>
<Entry ...
...
</ColorTable>
<CategoryNames>
<Category>Not processed</Category>
<Category>Cloud-free land</Category>
...
</CategoryNames>
<SourceFilename relativetoVRT="1">t.fis</SourceFilename>
<ImageOffset>7424</ImageOffset>
<PixelOffset>1</PixelOffset>
<LineOffset>3712</LineOffset>
<ByteOrder>LSB</ByteOrder>
</VRTRasterBand>
</VRTDataset>
Thanks in advance,
---
Marcel Derrien
<<attachment: marcel_derrien.vcf>>
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