Thanks for requesting input from the masses. I have two suggestions which are based on patches I apply to the NETCDF and HDF4 drivers every time I build GDAL.
I suggest providing a consistent way to georeference grids across the DODS, NETCDF, HDF4, and HDF5 drivers. We patch the NETCDF and HDF4 drivers to recognize georeferencing global attributes, "spatial_ref" and "GeoTransform". This allows for georeferencing whether accessing data through these local file drivers or the DODS driver. http://trac.osgeo.org/gdal/ticket/1639 (frmts/DODS, done) http://trac.osgeo.org/gdal/ticket/1637 (frmts/NETCDF, pending) http://trac.osgeo.org/gdal/ticket/2539 (frmts/HDF4, just submitted) Also, I think there should be a way to specify the values of higher-order dimensions (time, level, etc.) in the NETCDF connection string, similar to what the DODS driver allows (e.g. "http://penguin.sfos.uaf.edu/opendap/forecasts/WRF/APWS4km/AEFF/latest.nc?TMP_GPML[24][0][y][x]";). The existing ticket #1808 includes this and many other enhancements to the NETCDF driver. It would be great to see these enhancements in a future GDAL release. Alternatively, the patch in ticket #2540, though redundant to that above, is a simpler alternative for selecting individual bands which we have used extensively. http://trac.osgeo.org/gdal/ticket/1808 http://trac.osgeo.org/gdal/ticket/2540 (just submitted) Steve Gaffigan Data Analyst Alaska Ocean Observing System > Hi, > > I will being doing some new development on netCDF driver to make it more > CF-1 Compliant. > > Note: when I compiled the netCDF 3.6.2 with HDF4.2r3 (with the flag > --disable-netcdf) I had to change all macros such as "MAX_NC_NAME" to > "H4_MAX_NC_NAME" and many other similar macros. Need to do some testing on > this. > > I also noticed that DODS (dodsdataset2.cpp) does not seem to compile with > libdap3.8.2. There are some major changes in the library for C++. > I will take a look into this as well, but do not promess anything... > > If you have suggestion of improvements for DODS, HDF4 and netCDF drivers, > let me know, I have a little bit of time this coming month. > > Regards, > Denis > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
