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snaphdf - convert snapshot to HDF SD
snaphdf [parameter=value]
snaphdf is a prototype program intended to test out conversion
to some standardized HDF format. It is unclear at the time of this writing
what this exactly is, any output generated with this program should self-destruct
after you have read it.
The following parameters are recognized
in any order if the keyword is also given:
- in=
- Input file, in standard
snapshot(5NEMO)
formnat. No default.
- out=
- Output file (currently an hdf
SD). Note: Any existing output files will be overwritten. No default.
- times=
- Times to select snapshot.
In the following example an 100 particle
snapshot is created with the mkplummer(1NEMO)
program, but instead of storing
the data, it is piped (in the NEMO convention) into snaphdf. The tsd(1NEMO)
is then used to view what is inside the dataset. Compare this with the output
of the standard HDF program hdfls(1)
.
% mkplummer - 100 | snaphdf - p100.hdf
% tsd p100.hdf
Found 8 scientific data sets in p100.out
1: (1) -> [1 elements of type: 5 (FLOAT32)]
2: (100) -> [100 elements of type: 5 (FLOAT32)]
3: pos(1)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
4: pos(2)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
5: pos(3)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
6: vel(1)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
7: vel(2)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
8: vel(3)(100) Virial -> [100 elements of type: 5 (FLOAT32)]
Any existing output file will be overwritten, contrary to the NEMO
convention. This is due to the use of the hdf library. We ought to call some
file existance routine before...
tsd(1NEMO)
, hdfls(1)
, hdf(1)
Peter
Teuben
24-dec-94 V1.0 Created PJT
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