Page History

from psana import *
ds = DataSource('exp=xpptut15:run=59:smd')
evrFullName = Source('DetInfo(NoDetector.0:Evr.0)')
evrAliasName = Source('evr0')
ebeamName =  Source('BldInfo(EBeam)')
es = ds.env().epicsStore()
for nevent,evt in enumerate(ds.events()):
    # these next two lines are equivalent (second one uses "alias" name)        
    evr = evt.get(EvrData.DataV4, evrFullName)
    evr = evt.get(EvrData.DataV4, evrAliasName)
    # now fetch ebeam BLD ("Beam Line Data")                                    
    ebeam = evt.get(Bld.BldDataEBeamV7, ebeamName)
    # now access one of the slower "epics variables"                            
    if evr is None or ebeam is None: continue
    print evr
    print ebeam
    print es.value('HX2:DVD:GCC:01:PMON')
    break