graphics/opendx and dropping science/hdf
mfolk at ncsa.uiuc.edu
Thu Apr 8 09:12:04 PDT 2004
I completely forgot: Ireneusz Szczesniak has done an open dx
implementation called "dxhdf5", and has some nice documentation and other
materials at http://www-beams.colorado.edu/dxhdf5/. We need to be working
(Thanks for cc'ing me Quincey.)
Just a couple other comments about open dx:
The CACTUS project has been using open dx with hdf5 for several years. I
strongly suspect there are others, but don't know specifics. As far as I
know, the CACTUS folks haven't documented their work (I asked them a few
times, but that was a couple of years ago), so I don't know exactly how
they organize the data.
Open dx and hdf5 are a natural combination, and it's a pity we haven't
married them in some formal way, and we'd love to work with you if you move
in that direction.
At 09:27 AM 4/8/2004, Quincey Koziol wrote:
> > I intend to drop the science/hdf port. It was obsoleted by hdf5 long ago
> > (was it?), it breaks on some some 64bit platforms, it conflicts with
> > math/netcdf.
> > All the technical issues are, probably, fixable, but the obsoleteness
> > makes them not worth the effort. Or so it seems.
> > The only port relying on science/hdf is graphics/opendx and only if
> > WITH_HDF is defined. Unfortunately, opendx does not (yet?) support hdf5.
> > So...
> > . Does hdf5 really obsolete hdf4?
> No, they are different file formats & libraries, etc.
> > . Does hdf support add much value to opendx at all,
> > or can we just remove it?
> I don't know.
> > . If not, should I (or some other helping hand) try to patch
> > opendx to use hdf5?
> It would certainly be nice if opendx supported hdf5.
> > or
> > . bring the old hdf4 into the 21st century (fixing the types,
> > depending on math/netcdf instead of building its own)?
> It shouldn't be _too_ hard to fix the type information in hdf4 (I can
>you with that, if you'd like), but it would be _very_ hard to depend on
>math/netcdf instead of its own.
> > Thanks for any ideas,
> > -mi
Mike Folk, Scientific Data Tech (HDF) http://hdf.ncsa.uiuc.edu
NCSA/U of Illinois at Urbana-Champaign 217-244-0647 voice
605 E. Springfield Ave., Champaign IL 61820 217-244-1987 fax
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