Maxim Loginov (el 2007-08-03 a les 09:58:00 +0700) va dir::
> I'm wondered if anybody interested in implementation CGNS file format
> reading in pytables? some information on CGNS format:
> The CFD General Notation System (CGNS) provides a
> general, portable, and extensible standard for the storage and
> retrieval of computational fluid dynamics (CFD) analysis data. The
> latest release is build on top of HDF5 format. An effort was
> spearheaded by Boeing to establish an ISO-STEP standard for the
> representation, storage, and exchange of digital data in fluid
> dynamics based on the CGNS standard. [...]>=20
It is very interesting to see how the aeronautics industry is steadily
moving towards HDF5 as a platform for data analysis and storage. I've
been toying with some of the example CGNS files available at cgns.org
and, after converting them to HDF5 usign the ``adf2hdf`` tool from the
cgnslib (http://www.cgns.org/download.html), I can say that there seems
to be no problem in working with an HDF5 CGNS file in PyTables, since
the only nodes used are groups and vanilla arrays with some string
> there is a package pycgns exist for working with CGNS with python
> maybe it is worthwhile to merge its functionality into pytables?
=46rom my point of view PyTables is OK being a storage-level library.
This doesn't preclude anyone from developing higher-level modules based
on PyTables, which may even be included as contributed code (see the
``tables.netcdf3`` subpackage by Jeff Whitaker or my old
In the particular case of pyCGNS, PyTables may be a great option to
enable pyCGNS to support the new HDF5-based format without much effort.
Maybe the authors of pyCGNS may be interested in knowing from PyTables.
Thanks Maxim for such interesting information. Regards,
Ivan Vilata i Balaguer >qo< http://www.carabos.com/
C=E1rabos Coop. V. V V Enjoy Data