It seems that QGis does not support GDAL raster "subdatasets", I get this with netcdf and hdf4 files.
Try this: gdal_translate -of vrt NETCDF:"Glb_20111001.nc":cf_DangerRisk danger_risk.vrt qgis danger_risk.vrt For more information on subdatasets see the GDAL netcdf driver page: http://www.gdal.org/frmt_netcdf.html It's a pity this doesn't work directly in QGis - anybody know if this could be fixed/implemented? It would be great to support subdatasets by adding a layer for each subdataset, and perhaps even better with a dialog for selecting a particular subdataset. Regards, Etienne On Wed, Feb 8, 2012 at 3:51 PM, Paolo Corti <[email protected]> wrote: > Hi > sorry if this has been discussed before, but according to what I see > here [1] there was not an answer. > > I need to open a NetCDF file with QGIS. > I am using QGIS 1.7.2, and GDAL 1.9.0. > I can successfully manage NetCDF files with GDAL: > > $ gdalinfo --formats > Supported Formats: > ... > netCDF (rw+): Network Common Data Format > ... > > $ gdalinfo Glb_20111001.nc > Driver: netCDF/Network Common Data Format > Files: Glb_20111001.nc > Size is 512, 512 > Coordinate System is `' > Metadata: > NC_GLOBAL#CDI=Climate Data Interface version 1.4.3 > NC_GLOBAL#CDO=Climate Data Operators version 1.4.3 > (http://www.mpimet.mpg.de/cdo) > NC_GLOBAL#Conventions=CF-1.0 > NC_GLOBAL#history=Wed Oct 12 23:30:47 2011: cdo -s -f nc merge > af01_20111001.nc af02_20111001.nc pf01_20111001.nc pf02_20111001.nc > pf03_20111001.nc pf04_20111001.nc pf05_20111001.nc pf06_20111001.nc > pf07_20111001.nc pf08_20111001.nc pf09_20111001.nc pf10_20111001.nc > pf11_20111001.nc pf12_20111001.nc pf13_20111001.nc pf14_20111001.nc > pf15_20111001.nc pf16_20111001.nc pf17_20111001.nc pf18_20111001.nc > pf19_20111001.nc pf20_20111001.nc pf21_20111001.nc pf22_20111001.nc > pf23_20111001.nc pf24_20111001.nc pf25_20111001.nc pf26_20111001.nc > pf27_20111001.nc pf28_20111001.nc pf29_20111001.nc pf30_20111001.nc > pf31_20111001.nc pf32_20111001.nc pf33_20111001.nc pf34_20111001.nc > pf35_20111001.nc pf36_20111001.nc pf37_20111001.nc pf38_20111001.nc > pf39_20111001.nc pf40_20111001.nc pf41_20111001.nc pf42_20111001.nc > pf43_20111001.nc pf44_20111001.nc pf45_20111001.nc pf46_20111001.nc > pf47_20111001.nc pf48_20111001.nc pf49_20111001.nc pf50_20111001.nc > Glb_20111001.nc > Wed Oct 12 23:30:39 2011: cdo -s -f nc merge > pf50_20111001_DangerRisk.nc pf50_20111001_FWI.nc pf50_20111001.nc > Wed Oct 12 23:30:37 2011: cdo -s -f nc mergetime > pf50_20111001_20111001_FWI.nc pf50_20111001_20111002_FWI.nc > pf50_20111001_20111003_FWI.nc pf50_20111001_20111004_FWI.nc > pf50_20111001_20111005_FWI.nc pf50_20111001_20111006_FWI.nc > pf50_20111001_20111007_FWI.nc pf50_20111001_20111008_FWI.nc > pf50_20111001_20111009_FWI.nc pf50_20111001_20111010_FWI.nc > pf50_20111001_FWI.nc > Wed Oct 12 23:30:36 2011: cdo -s -f nc -R chname,var228,pf50_FWI -copy > Work0/20111001_fwi/pf50/20111001_20111010_FWI.grib > pf50_20111001_20111010_FWI.nc > NC_GLOBAL#institution=European Centre for Medium-Range Weather Forecasts > Subdatasets: > SUBDATASET_1_NAME=NETCDF:"Glb_20111001.nc":cf_DangerRisk > SUBDATASET_1_DESC=[10x640x1280] cf_DangerRisk (32-bit floating-point) > SUBDATASET_2_NAME=NETCDF:"Glb_20111001.nc":cf_FWI > SUBDATASET_2_DESC=[10x640x1280] cf_FWI (32-bit floating-point) > ... > [cut] > > When I try to open this dataset with QGIS, this is what I get: > Cannot get GDAL raster band. > > In the console this is what has been logged: > > Warning: QgsRasterLayer::setDataProvider: Data provider is invalid. > ERROR 10: Pointer 'hObject' is NULL in 'GDALGetMetadata'. > > Any ideas? Should I open a ticket? > thanks > P > > [1] http://www.osgeo.org/pipermail/qgis-user/2011-July/012949.html > > -- > Paolo Corti > Geospatial software developer > web: http://www.paolocorti.net > twitter: @capooti > skype: capooti > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
