At ADASS recently the CARTA visualization tool is using a new IDIA standard (?) scheme to efficiently store large cubes, but serves just as well for normal cubes. It looks of course much like your HDF5 files, but if we're going to write cubes in hdf5 instead of fits, might as well use some kind of standard in astronomy. I just don't know if there is one.
See https://github.com/idia-astro/cpp_hdf5converter for the code they use to create these HDF5 files.
At ADASS recently the CARTA visualization tool is using a new IDIA standard (?) scheme to efficiently store large cubes, but serves just as well for normal cubes. It looks of course much like your HDF5 files, but if we're going to write cubes in hdf5 instead of fits, might as well use some kind of standard in astronomy. I just don't know if there is one.
See https://github.com/idia-astro/cpp_hdf5converter for the code they use to create these HDF5 files.