omtool 0.2.0

Creation

This module is responsible for initialization of snapshots. You can create configuration YAML file which describes list of objects in the snapshot (single objects and *.csv files are supported for now).

The output is single FITS file which has two HDUs: empty primary one (it is required by FITS standard) and binary table with positions, velocities and masses of each particle in the system. It also stores timestamp T = 0 in the header.

You can start it with

python main.py create /path/to/config/file.yaml

Integration

This module is responsible for actual integration of the model from previous module. It operates similarly: you create configuration file with all the data necessary. Next step is to launch

python main.py integrate /path/to/config/file.yaml

It will print some info into console and gradually produce output FITS file. Each HDU of this file would contain timestamp in the TIME header and table with fields [x, y, z, vx, vy, vz, m]. Be aware that depending on number of particles it can take quite a lot of disk space.

Analysis

This module is responsible for the visualization of file with snapshots (for example, one from previous module). As always, you should create configuration file. The biggest part of it is description of matplotlib’s plots layout. Launch command:

python main.py analize /path/to/config/file.yaml

If done right it should produce a lot of pictures (the same amount as number of timestamps in the input file) similar to this one:

This program is under heavy development so some things (or all of them) might work not as expected or not work at all.