[gdal-dev] VRT file from NetCDF

[Yves Jacolin]

Hello,

I have no enought time to find the reason of the issue but I think the problem 
come from QGIS which can't classify raster data correctly. Or I am wrong 
somewhere.

Anyway, I finally successfully worked on my NetCDF data using gdalbuildvrt and 
-separate flag.

Thanks again both of you,

Y.
Le mardi 13 décembre 2011 13:33:53, Etienne Tourigny a écrit :
> Yves, just out of curiosity, which gdal version are you using?  You
> might consider trying the dev version (1.9) as the netcdf driver has a
> quite a few fixes.
> 
> Please also send me the netcdf and vrt file (or post them somewhere).
> 
> Etienne
> 
> On Tue, Dec 13, 2011 at 10:21 AM, Yves Jacolin <yjacolin at free.fr> wrote:
> > Le mardi 13 décembre 2011 13:01:24, Even Rouault a écrit :
> >> Selon Yves Jacolin <yjacolin at free.fr>:
> >> > Hello,
> >> > 
> >> > I am trying to create vrt files from netcdf files using only one
> >> > subdataset. FYI, the second step will be to create a vrt file with two
> >> > bandes linked to two
> >> > subdataset.
> >> > 
> >> > I am using a first vrt file for begining created from a tif file as
> >> > template. The
> >> > vrt file using tif file is working correctly. The tiff file has been
> >> > created by
> >> > gdal_translate from the netcdf file.
> >> > 
> >> > If I try to open the vrt file linked to netcdf file in QGIS no data is
> >> > dispaly,
> >> > values are null for all the dataset. QGIS medatada says "no data
> >> > value".
> >> > 
> >> > Any idea?
> >> 
> >> Yves,
> >> 
> >> did you try to create the VRT with "gdal_translate -of VRT netCDF:xxxxx
> >> netcdf.vrt" and see if it shows up correctly in QGIS (it should...). ?
> >> Then you can compare with the VRT you've created at hand.
> > 
> > Even,
> > 
> > I tested and compared both files and they are similar (except that with
> > gdal_translate I have Metadata tags). Both are not working in QGIS: no
> > value in dataset! Translating into GTIFF is working but I want to keep
> > vrt files to working on them with MapServer.
> > 
> > I can send you netcdf and vrt file if you want to test it.
> > 
> > Thanks,
> > 
> > Y.
> > --
> > Yves Jacolin
> > 
> > http://yjacolin.gloobe.org
> > _______________________________________________
> > gdal-dev mailing list
> > gdal-dev at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/gdal-dev

-- 
Yves Jacolin

http://yjacolin.gloobe.org