price@MacBook:~/pfs/drp_instmodel (tickets/SIM2D-109=) $ git sub
commit 7c1ffeb8b9c19cc7339dd806c0449efb4786118f
Author: Paul Price <price@astro.princeton.edu>
Date:   Tue Mar 19 12:29:56 2019 -0400

    convert to pfsDesign+light source as specifying spectra
    
    I was using the pfsDesign to specify the spectra, even for arcs and darks,
    but the pfsDesign should only specify the top-end configuration, and the
    light source (sky vs quartz vs arc vs dark) should be separate. This allows
    us to dispense with the field definitions.

 bin/makeSimRun                           |  79 ++++-----
 python/pfs/instmodel/fieldDefinitions.py |  87 ----------
 python/pfs/instmodel/lightSource.py      | 288 +++++++++++++++++++++++++++++++
 python/pfs/instmodel/makePfiDesign.py    |  64 ++++---
 python/pfs/instmodel/makePfsConfig.py    | 169 +-----------------
 python/pfs/instmodel/makeSim.py          |  38 ++--
 python/pfs/instmodel/spectrumLibrary.py  | 122 -------------
 7 files changed, 383 insertions(+), 464 deletions(-)

commit 53e348f6a3b392ceb2f72606c2a85d51e14bad05 (HEAD -> tickets/SIM2D-109, origin/tickets/SIM2D-109)
Author: Paul Price <price@astro.princeton.edu>
Date:   Tue Mar 19 15:28:35 2019 -0400

    add SumSpectrum
    
    Not using it yet, but it might be useful down the road.

 python/pfs/instmodel/spectrum.py | 45 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)