Recently, a new vtk file format has been specified. Now, vtk directly supports the hdf5 format by specifying vtkhdf. It is a valid request to ask for exporting d3plot databases directly into this format. This way, no detours via the legacy xdmf format would be required.
While we already use this format for our own in-house solvers, we still havn’t incorporated it into d3plot2hdf5. Is it desired? Just let us know…