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dtos - convert STARLAB dyn to NEMO snapshot
dtos converts a STARLAB dyn file to a NEMO snapshot file (see
for the reverse operation and other information). A tdyn
file needs to be synchronized via worldlines(1STARLAB)
before being converted.
The following parameters are recognized in any order if the keyword
is also given:
Since STARLAB has the restriction that input and output are through
stdin/stdout (cin/cout), the user interface of dtos is not quite standard
NEMO. In the following example a file in dyn format is converted to snapshot
- Output snapshot file in standard snapshot(5NEMO)
Note that the input dyn must be from standard input. No default.
- Random verbiage added to output.
- Optional starlab items to write
out. Currently it will write out all items, even if meaningless. This probably
means that Aux, Acceleration, Potential and Key could be quite meaningless.
dtos out=run1.ss < run1.dyn
Here is an example of converting a tdyn to a snapshot, spaced at 0.5 intervals
worldlines -d 0.1 -b 2.0 < run2.tdyn | dtos out=run2.ss
There are no times associated with the dyn input stream. A keyword "times="
should be used to enforce. The hdyn format does have times.
formats, like tdyn, are not gracefully handled if given directly to dtos.
T and L are read into the Potential and Aux slot, where S is read into
the Key slot.
src/nbody/io/starlab dtos.C, stod_subs.c
31-Jul-96 V1.1 doc written PJT
6-aug-96 V1.1a handle multple snapshots from input PJT
18-jul-01 V1.2 also output time, improved scanning dyn’s to pdyn’s PJT
15-oct-03 V1.3 compatible with starlab4, made L/T work PJT
29-dec-03 V1.4 output all L/T/S PJT
16-mar-04 V2.0 added options= and headline= PJT
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