Tools for viewing GCD+ files with Python

Install by:

     git clone https://github.com/Astrokiwi/gcdp_python_tools.git .
     pip install ./gcdp_python_tools

(If you want to edit the package in this directory, then do `pip install -e ./gcdp_python_tools` to install in "editable" mode.)

You can then use

     import gcd-tools

in Python to access the library.

The most important part is gcd_tools.gcd_tools.gcd_data(). You initialize this object with a directory, and load in the arrays piece by piece. It produces a Pandas dataframe, but this can be converted into a pynbody snapshot, which is probably preferable.

Sample usage:

    gr = gcd_data("/srv/username/gcd/1800") # set up directory

    gr.read_base(9) # load snapshot 9 (hydro & stars)
    gr.read_extra_hydro() # more hydrodynamics data
    gr.read_dark() # load dark matter
    gr.convert_units() # convert to physical units
    snap = gr.to_pynbody() # convert to pynbody snapshot