Run, Step, and Event Loops

class Arguments:
  expt = 'ueddaq02'
  run = 66
  evtmax = 5
  detname = 'epixquad'

args = Arguments()

from psana.pyalgos.generic.NDArrUtils import info_ndarr
from psana import DataSource
ds = DataSource(exp=args.expt, run=args.run, dir=f'/cds/data/psdm/{args.expt[:3]}/{args.expt}/xtc')

for irun,run in enumerate(ds.runs()):
  print('\n==== %02d run: %d exp: %s detnames: %s' % (irun, run.runnum, run.expt, ','.join(run.detnames)))

  print('make detector object' % args.detname)
  det = run.Detector(args.detname)

  for istep,step in enumerate(run.steps()):
    print('\nStep %1d' % istep)

    for ievt,evt in enumerate(step.events()):
        if ievt>args.evtmax: exit('exit by number of events limit %d' % args.evtmax)

        print('%s\nEvent %04d' % (80*'_',ievt))
        segs = det.raw.segments(evt)
        raw = det.raw.raw(evt)

        print(info_ndarr(segs, 'segsments '))
        print(info_ndarr(raw, 'raw '))

Methods of det.raw

Methods for AMI interface

raw

raw = det.raw.raw(evt)

calib

clb = det.raw.calib(evt)

user_mask = np.ones_like(det.raw.raw(evt), dtype=DTYPE_MASK) #np.uint8
user_mask[0,100:150,200:250] = 0

clb = det.raw.calib(evt, cmpars=(7,2,100,10), mbits=0o7, mask=user_mask, edge_rows=10, edge_cols=10, center_rows=5, center_cols=5, **kwargs)

common mode correction, user defined mask, status mask and mask of edges are applied:

image

img = det.raw.image(evt, **kwargs)

segments

segs = det.raw.segments(evt)

Other useful methods hidden for AMI

_mask and _mask_comb

msk = det.raw._mask(calib=False, status=False, edges=False, neighbors=False, **kwargs)

msk = det.raw._mask_comb(mbits=0o7, mask=None, edge_rows=10, edge_cols=10, center_rows=5, center_cols=5)

where mbits &1 - calib, &2 - status, &4 -edges , &8 - neighbors

Separate masks

o = det.raw

m = o._mask_default(dtype=DTYPE_MASK)
m = o._mask_calib_or_default(dtype=DTYPE_MASK)
m = o._mask_from_status(**kwa)
m = o._mask_edges(edge_rows=10, edge_cols=10, center_rows=5, center_cols=5, **kwa)

EPIX10KA Data Access