Hi,
I've built HDF-EOS 5 locally as an experiment - straightforward. No
dependency on libGctp.
Do you think it would be worth then adding HDF EOS 2 + 5 or just one
of them to Debian ?
From my perspective (and the perspective of my employer www.ichec.ie
who's sponsoring my time on this )
shaking out the bugs in HDF and compilers is one of the strengths of
working within Debian - producing
quality code and fixing the bugs once and for all.
For szip support: I'd build initially without szip support, then
investigate the cost of adding a dlopen()
patch to support szip if its present. Perhaps szip can be added to non-
free then.
Regards
Alastair
On 28 Apr 2009, at 16:13, George White wrote:
On Mon, 27 Apr 2009, Alastair McKinstry wrote:
Hi,
Has anyone any experience with HDF-EOS ? This is a specialised form
of the HDF data format from NASA.
http://www.hdfgroup.org/hdfeos.html
Specifically, has anyone used it with Debian, or know about
packaging it for Debian ?
HDF-EOS2 is used by NASA SeaDAS, which I have used on Debian (i386),
and which is currently developed on Ubuntu (but distributed via tar
archives). There are reasonable tools to convert hdf4 to hdf5,
including some support for hdf5. The latter is more portable and
has better support for multiprocessing, so some people (e.g., R-
project) prefer to use hdf5 in new code and convert legacy files to
hdf5.
Its used by some projects I support at work, and doesn't appear to
be in Debian yet, and might add it to the Debian Meteorology blend.
I'm looking for license information now, but it appears to be free.
HDF-EOS2 uses hdf4 plus libGctp (map transformations), so you would
start
with libGctp. Szip is an optional and non-free component, but widely
used, so whether you consider HDF-EOS to be free depends on whether
you need Szip.
In the past it has been a lot of work to build any of the hdf
libraries, especially if you want Fortran. Usually you end up stuck
at some compiler bug, already known to the hdfgroup developers, and
have to rebuild your compiler with the patches applied. Hopefully
this is better now (at least with GNU compilers I don't have to
fight to have the vendor support contracts paid). I have built hdf5
libraries a couple times on MacOSX (x86_64) and Ubuntu (i386). The
resulting libraries don't pass all the tests, but have been working
well enough for our needs. Not the sort
of thing you want to distribute, however.
Regards
Alastair McKinstry
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George White <[email protected]> <[email protected]>
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Regards
Alastair McKinstry
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