Pierre,
Le 12/03/2024 à 12:51, Pierre Chatelier a écrit :
Ok, I can confirm that
-creating a dataset with <n> bands with the netCDF driver works
-saving the dataset will write the expected "SUBDATASETS" domain with
"SUBDATASET_<i>_NAME=NETCDF:"<file>":"<band name>"
But I can't figure out how to customize the <band name>, which is
Band1, Band2, Band3...
I tried GDALRasterBand::SetDescription(), but without success
Looking at netcdfdataset.cpp line 9625, the netCDF variable name for a
band is extracted from the NETCDF_VARNAME band metadata item of the
source band.
Also, is there a reason why AddBand() is not supported by the netCDF
driver ? I expected it to be able to add bands on demand as new
"netcdf variables".
I guess that could be implemented. There would be a subtlety however:
- if CreateCopy() has been invoked with NETCDF_DIM_EXTRA_xxx,
NETCDF_DIM_xxx_DEF metadata items, to ask for bands to be modeled as a
dimension (for example the time dimension of a 3D variable), that would
require the band dimension to be created as UNLIMITED however at dataset
creation.
- otherwise for 2D variables, yes, implementing AddBand() should be
relatively straighforward ... hopefully ... (please don't sue me, if it
is not. The netCDF driver has its peculiarities...)
Even
--
http://www.spatialys.com
My software is free, but my time generally not.
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