Hello, Etienne asked some question offlist so I investigate.
gdal create relatif path by default (I don't see a flag to change this). MapServer and QGIS don't like this. After changing relatif path to absolute path both are working correctly. Thanks, Y. Le mardi 13 décembre 2011 15:37:24, Yves Jacolin a écrit : > 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 <[email protected]> wrote: > > > Le mardi 13 décembre 2011 13:01:24, Even Rouault a écrit : > > >> Selon Yves Jacolin <[email protected]>: > > >> > 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 > > > [email protected] > > > http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Yves Jacolin http://yjacolin.gloobe.org _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
