def __init__(self):
self.steeringFile = None
self.compactFile = ""
self.inputFiles = []
self.outputFile = "dummyOutput.slcio"
self.runType = "batch"
self.printLevel = 3
self.numberOfEvents = 0
self.skipNEvents = 0
self.physicsList = None # deprecated use physics.list
self.crossingAngleBoost = 0.0
self.macroFile = ''
self.enableGun = False
self.enableG4GPS = False
self.enableG4Gun = False
self._g4gun = None
self._g4gps = None
self.vertexSigma = [0.0, 0.0, 0.0, 0.0]
self.vertexOffset = [0.0, 0.0, 0.0, 0.0]
self.enableDetailedShowerMode = False
self._errorMessages = []
self._dumpParameter = False
self._dumpSteeringFile = False
# objects for extended configuration option
self.output = Output()
self.random = Random()
self.gun = Gun()
self.part = ParticleHandler()
self.field = MagneticField()
self.action = Action()
self.guineapig = GuineaPig()
self.lcio = LCIO()
self.hepmc3 = HepMC3()
self.meta = Meta()
self.filter = Filter()
self.physics = Physics()
self._argv = None
# use TCSH geant UI instead of QT
os.environ['G4UI_USE_TCSH'] = "1"
class DD4hepSimulation(object):
"""Class to hold all the parameters and functions to run simulation"""
def __init__(self):
self.steeringFile = None
self.compactFile = ""
self.inputFiles = []
self.outputFile = "dummyOutput.slcio"
self.runType = "batch"
self.printLevel = 3
self.numberOfEvents = 0
self.skipNEvents = 0
self.physicsList = None ## deprecated use physics.list
self.crossingAngleBoost = 0.0
self.macroFile = ''
self.enableGun = False
self.enableG4GPS = False
self.enableG4Gun = False
self._g4gun = None
self._g4gps = None
self.vertexSigma = [0.0, 0.0, 0.0, 0.0]
self.vertexOffset = [0.0, 0.0, 0.0, 0.0]
self.enableDetailedShowerMode = False
self._errorMessages = []
self._dumpParameter = False
self._dumpSteeringFile = False
## objects for extended configuration option
self.output = Output()
self.random = Random()
self.gun = Gun()
self.part = ParticleHandler()
self.field = MagneticField()
self.action = Action()
self.guineapig = GuineaPig()
self.lcio = LCIO()
self.meta = Meta()
self.filter = Filter()
self.physics = Physics()
self._argv = None
### use TCSH geant UI instead of QT
os.environ['G4UI_USE_TCSH'] = "1"
def readSteeringFile(self):
"""Reads a steering file and sets the parameters to that of the
DD4hepSimulation object present in the steering file.
"""
globs = {}
locs = {}
if not self.steeringFile:
return
sFileTemp = self.steeringFile
execfile(self.steeringFile, globs, locs)
for _name, obj in locs.items():
if isinstance(obj, DD4hepSimulation):
self.__dict__ = obj.__dict__
self.steeringFile = os.path.abspath(sFileTemp)
def parseOptions(self, argv=None):
"""parse the command line options"""
if argv is None:
self._argv = list(sys.argv)
parser = argparse.ArgumentParser(
"Running DD4hep Simulations:",
formatter_class=argparse.RawTextHelpFormatter)
parser.add_argument("--steeringFile",
"-S",
action="store",
default=self.steeringFile,
help="Steering file to change default behaviour")
#first we parse just the steering file, but only if we don't want to see the help message
if not any(opt in self._argv for opt in ('-h', '--help')):
parsed, _unknown = parser.parse_known_args()
self.steeringFile = parsed.steeringFile
self.readSteeringFile()
## readSteeringFile will set self._argv to None if there is a steering file
if self._argv is None:
self._argv = list(argv) if argv else list(sys.argv)
parser.add_argument("--compactFile",
action="store",
default=self.compactFile,
help="The compact XML file")
parser.add_argument(
"--runType",
action="store",
choices=("batch", "vis", "run", "shell"),
default=self.runType,
help=
"The type of action to do in this invocation" ##Note: implicit string concatenation
"\nbatch: just simulate some events, needs numberOfEvents, and input file or gun"
"\nvis: enable visualisation, run the macroFile if it is set"
"\nrun: run the macroFile and exit"
"\nshell: enable interactive session")
parser.add_argument(
"--inputFiles",
"-I",
nargs='+',
action="store",
default=self.inputFiles,
help="InputFiles for simulation %s files are supported" %
", ".join(POSSIBLEINPUTFILES))
parser.add_argument(
"--outputFile",
"-O",
action="store",
default=self.outputFile,
help="Outputfile from the simulation,only lcio output is supported"
)
parser.add_argument(
"-v",
"--printLevel",
action="store",
default=self.printLevel,
dest="printLevel",
choices=(1, 2, 3, 4, 5, 6, 7, 'VERBOSE', 'DEBUG', 'INFO',
'WARNING', 'ERROR', 'FATAL', 'ALWAYS'),
help="Verbosity use integers from 1(most) to 7(least) verbose"
"\nor strings: VERBOSE, DEBUG, INFO, WARNING, ERROR, FATAL, ALWAYS"
)
parser.add_argument(
"--numberOfEvents",
"-N",
action="store",
dest="numberOfEvents",
default=self.numberOfEvents,
type=int,
help="number of events to simulate, used in batch mode")
parser.add_argument("--skipNEvents",
action="store",
dest="skipNEvents",
default=self.skipNEvents,
type=int,
help="Skip first N events when reading a file")
parser.add_argument("--physicsList",
action="store",
dest="physicsList",
default=self.physicsList,
help="Physics list to use in simulation")
parser.add_argument(
"--crossingAngleBoost",
action="store",
dest="crossingAngleBoost",
default=self.crossingAngleBoost,
type=float,
help="Lorentz boost for the crossing angle, in radian!")
parser.add_argument(
"--vertexSigma",
nargs=4,
action="store",
dest="vertexSigma",
default=self.vertexSigma,
metavar=('X', 'Y', 'Z', 'T'),
type=float,
help=
"FourVector of the Sigma for the Smearing of the Vertex position: x y z t"
)
parser.add_argument(
"--vertexOffset",
nargs=4,
action="store",
dest="vertexOffset",
default=self.vertexOffset,
metavar=('X', 'Y', 'Z', 'T'),
type=float,
help=
"FourVector of translation for the Smearing of the Vertex position: x y z t"
)
parser.add_argument(
"--macroFile",
"-M",
action="store",
dest="macroFile",
default=self.macroFile,
help="Macro file to execute for runType 'run' or 'vis'")
parser.add_argument("--enableGun",
"-G",
action="store_true",
dest="enableGun",
default=self.enableGun,
help="enable the DDG4 particle gun")
parser.add_argument(
"--enableG4GPS",
action="store_true",
dest="enableG4GPS",
default=self.enableG4GPS,
help=
"enable the Geant4 GeneralParticleSource. Needs a macroFile (runType run) or use it with the shell (runType shell)"
)
parser.add_argument(
"--enableG4Gun",
action="store_true",
dest="enableG4Gun",
default=self.enableG4Gun,
help=
"enable the Geant4 particle gun. Needs a macroFile (runType run) or use it with the shell (runType shell)"
)
parser.add_argument("--dumpParameter",
"--dump",
action="store_true",
dest="dumpParameter",
default=self._dumpParameter,
help="Print all configuration Parameters and exit")
parser.add_argument("--enableDetailedShowerMode",
action="store_true",
dest="enableDetailedShowerMode",
default=self.enableDetailedShowerMode,
help="use detailed shower mode")
parser.add_argument("--dumpSteeringFile",
action="store_true",
dest="dumpSteeringFile",
default=self._dumpSteeringFile,
help="print an example steering file to stdout")
#output, or do something smarter with fullHelp only for example
ConfigHelper.addAllHelper(self, parser)
## now parse everything. The default values are now taken from the
## steeringFile if they were set so that the steering file parameters can be
## overwritten from the command line
if ARGCOMPLETEENABLED:
argcomplete.autocomplete(parser)
parsed = parser.parse_args()
self._dumpParameter = parsed.dumpParameter
self._dumpSteeringFile = parsed.dumpSteeringFile
self.compactFile = parsed.compactFile
self.inputFiles = parsed.inputFiles
self.inputFiles = self.__checkFileFormat(self.inputFiles,
POSSIBLEINPUTFILES)
self.outputFile = parsed.outputFile
self.__checkFileFormat(self.outputFile, ('.root', '.slcio'))
self.runType = parsed.runType
self.printLevel = self.__checkOutputLevel(parsed.printLevel)
self.numberOfEvents = parsed.numberOfEvents
self.skipNEvents = parsed.skipNEvents
self.physicsList = parsed.physicsList
self.crossingAngleBoost = parsed.crossingAngleBoost
self.macroFile = parsed.macroFile
self.enableGun = parsed.enableGun
self.enableG4Gun = parsed.enableG4Gun
self.enableG4GPS = parsed.enableG4GPS
self.enableDetailedShowerMode = parsed.enableDetailedShowerMode
self.vertexOffset = parsed.vertexOffset
self.vertexSigma = parsed.vertexSigma
self._consistencyChecks()
#self.__treatUnknownArgs( parsed, unknown )
self.__parseAllHelper(parsed)
if self._errorMessages and not (self._dumpParameter
or self._dumpSteeringFile):
parser.epilog = "\n".join(self._errorMessages)
parser.print_help()
exit(1)
if self._dumpParameter:
from pprint import pprint
print "=" * 80
pprint(vars(self))
print "=" * 80
exit(1)
if self._dumpSteeringFile:
self.__printSteeringFile(parser)
exit(1)
@staticmethod
def getDetectorLists(detectorDescription):
''' get lists of trackers and calorimeters that are defined in detectorDescription (the compact xml file)'''
import DDG4
# if len(detectorList):
# print " subset list of detectors given - will only instantiate these: " , detectorList
trackers, calos = [], []
for i in detectorDescription.detectors():
det = DDG4.DetElement(i.second.ptr())
name = det.name()
sd = detectorDescription.sensitiveDetector(name)
if sd.isValid():
detType = sd.type()
# if len(detectorList) and not(name in detectorList):
# continue
print 'getDetectorLists - found active detctor ', name, ' type: ', detType
if detType == "tracker":
trackers.append(det.name())
if detType == "calorimeter":
calos.append(det.name())
return trackers, calos
#==================================================================================
def run(self):
"""setup the geometry and dd4hep and geant4 and do what was asked to be done"""
import ROOT
ROOT.PyConfig.IgnoreCommandLineOptions = True
import DDG4, dd4hep
self.printLevel = getOutputLevel(self.printLevel)
kernel = DDG4.Kernel()
dd4hep.setPrintLevel(self.printLevel)
#kernel.setOutputLevel('Compact',1)
kernel.loadGeometry("file:" + self.compactFile)
detectorDescription = kernel.detectorDescription()
DDG4.importConstants(detectorDescription)
#----------------------------------------------------------------------------------
#simple = DDG4.Geant4( kernel, tracker='Geant4TrackerAction',calo='Geant4CalorimeterAction')
#simple = DDG4.Geant4( kernel, tracker='Geant4TrackerCombineAction',calo='Geant4ScintillatorCalorimeterAction')
simple = DDG4.Geant4(kernel,
tracker=self.action.tracker,
calo=self.action.calo)
simple.printDetectors()
if self.runType == "vis":
simple.setupUI(typ="csh", vis=True, macro=self.macroFile)
elif self.runType == "run":
simple.setupUI(typ="csh",
vis=False,
macro=self.macroFile,
ui=False)
elif self.runType == "shell":
simple.setupUI(typ="csh", vis=False, macro=None, ui=True)
elif self.runType == "batch":
simple.setupUI(typ="csh", vis=False, macro=None, ui=False)
else:
print "ERROR: unknown runType"
exit(1)
#kernel.UI="csh"
kernel.NumEvents = self.numberOfEvents
#-----------------------------------------------------------------------------------
# setup the magnetic field:
self.__setMagneticFieldOptions(simple)
#----------------------------------------------------------------------------------
# Configure Run actions
run1 = DDG4.RunAction(kernel, 'Geant4TestRunAction/RunInit')
kernel.registerGlobalAction(run1)
kernel.runAction().add(run1)
# Configure the random seed, do it before the I/O because we might change the seed!
_rndm = self.random.initialize(DDG4, kernel, self.output.random)
# Configure I/O
if self.outputFile.endswith(".slcio"):
lcOut = simple.setupLCIOOutput('LcioOutput', self.outputFile)
lcOut.RunHeader = self.meta.addParametersToRunHeader(self)
lcOut.EventParametersString, lcOut.EventParametersInt, lcOut.EventParametersFloat = self.meta.parseEventParameters(
)
lcOut.RunNumberOffset = self.meta.runNumberOffset if self.meta.runNumberOffset > 0 else 0
lcOut.EventNumberOffset = self.meta.eventNumberOffset if self.meta.eventNumberOffset > 0 else 0
elif self.outputFile.endswith(".root"):
simple.setupROOTOutput('RootOutput', self.outputFile)
actionList = []
if self.enableGun:
gun = DDG4.GeneratorAction(kernel, "Geant4ParticleGun/" + "Gun")
self.gun.setOptions(gun)
gun.Standalone = False
gun.Mask = 1
actionList.append(gun)
self.__applyBoostOrSmear(kernel, actionList, 1)
print "++++ Adding DD4hep Particle Gun ++++"
if self.enableG4Gun:
## GPS Create something
self._g4gun = DDG4.GeneratorAction(kernel,
"Geant4GeneratorWrapper/Gun")
self._g4gun.Uses = 'G4ParticleGun'
self._g4gun.Mask = 2
print "++++ Adding Geant4 Particle Gun ++++"
actionList.append(self._g4gun)
if self.enableG4GPS:
## GPS Create something
self._g4gps = DDG4.GeneratorAction(kernel,
"Geant4GeneratorWrapper/GPS")
self._g4gps.Uses = 'G4GeneralParticleSource'
self._g4gps.Mask = 3
print "++++ Adding Geant4 General Particle Source ++++"
actionList.append(self._g4gps)
for index, inputFile in enumerate(self.inputFiles, start=4):
if inputFile.endswith(".slcio"):
gen = DDG4.GeneratorAction(kernel,
"LCIOInputAction/LCIO%d" % index)
gen.Parameters = self.lcio.getParameters()
gen.Input = "LCIOFileReader|" + inputFile
elif inputFile.endswith(".stdhep"):
gen = DDG4.GeneratorAction(kernel,
"LCIOInputAction/STDHEP%d" % index)
gen.Input = "LCIOStdHepReader|" + inputFile
elif inputFile.endswith(".HEPEvt"):
gen = DDG4.GeneratorAction(
kernel, "Geant4InputAction/HEPEvt%d" % index)
gen.Input = "Geant4EventReaderHepEvtShort|" + inputFile
elif inputFile.endswith(".hepevt"):
gen = DDG4.GeneratorAction(
kernel, "Geant4InputAction/hepevt%d" % index)
gen.Input = "Geant4EventReaderHepEvtLong|" + inputFile
elif inputFile.endswith(".hepmc"):
gen = DDG4.GeneratorAction(kernel,
"Geant4InputAction/hepmc%d" % index)
gen.Input = "Geant4EventReaderHepMC|" + inputFile
elif inputFile.endswith(".pairs"):
gen = DDG4.GeneratorAction(
kernel, "Geant4InputAction/GuineaPig%d" % index)
gen.Input = "Geant4EventReaderGuineaPig|" + inputFile
gen.Parameters = self.guineapig.getParameters()
else:
##this should never happen because we already check at the top, but in case of some LogicError...
raise RuntimeError("Unknown input file type: %s" % inputFile)
gen.Sync = self.skipNEvents
gen.Mask = index
actionList.append(gen)
self.__applyBoostOrSmear(kernel, actionList, index)
if actionList:
self._buildInputStage(simple,
actionList,
output_level=self.output.inputStage,
have_mctruth=self._enablePrimaryHandler())
#================================================================================================
# And handle the simulation particles.
part = DDG4.GeneratorAction(kernel,
"Geant4ParticleHandler/ParticleHandler")
kernel.generatorAction().adopt(part)
#part.SaveProcesses = ['conv','Decay']
part.SaveProcesses = self.part.saveProcesses
part.MinimalKineticEnergy = self.part.minimalKineticEnergy
part.KeepAllParticles = self.part.keepAllParticles
part.PrintEndTracking = self.part.printEndTracking
part.PrintStartTracking = self.part.printStartTracking
part.MinDistToParentVertex = self.part.minDistToParentVertex
part.OutputLevel = self.output.part
part.enableUI()
if self.part.enableDetailedHitsAndParticleInfo:
self.part.setDumpDetailedParticleInfo(kernel, DDG4)
self.part.setupUserParticleHandler(part, kernel, DDG4)
#=================================================================================
# Setup global filters for use in sensitive detectors
try:
self.filter.setupFilters(kernel)
except RuntimeError as e:
print "ERROR", str(e)
exit(1)
#=================================================================================
# get lists of trackers and calorimeters in detectorDescription
trk, cal = self.getDetectorLists(detectorDescription)
# ---- add the trackers:
try:
self.__setupSensitiveDetectors(trk, simple.setupTracker,
self.filter.tracker)
except Exception as e:
print "ERROR setting up sensitive detector", str(e)
raise
# ---- add the calorimeters:
try:
self.__setupSensitiveDetectors(cal, simple.setupCalorimeter,
self.filter.calo)
except Exception as e:
print "ERROR setting up sensitive detector", str(e)
raise
#=================================================================================
# Now build the physics list:
_phys = self.physics.setupPhysics(kernel, name=self.physicsList)
## add the G4StepLimiterPhysics to activate the max step limits in volumes
ph = DDG4.PhysicsList(kernel, 'Geant4PhysicsList/Myphysics')
ph.addPhysicsConstructor('G4StepLimiterPhysics')
_phys.add(ph)
dd4hep.setPrintLevel(self.printLevel)
kernel.configure()
kernel.initialize()
## GPS
if self._g4gun is not None:
self._g4gun.generator()
if self._g4gps is not None:
self._g4gps.generator()
startUpTime, _sysTime, _cuTime, _csTime, _elapsedTime = os.times()
kernel.run()
kernel.terminate()
totalTimeUser, totalTimeSys, _cuTime, _csTime, _elapsedTime = os.times(
)
if self.printLevel <= 3:
print "DDSim INFO Total Time: %3.2f s (User), %3.2f s (System)" % (
totalTimeUser, totalTimeSys)
if self.numberOfEvents != 0:
eventTime = totalTimeUser - startUpTime
perEventTime = eventTime / float(self.numberOfEvents)
print "DDSim INFO StartUp Time: %3.2f s, Event Processing: %3.2f s (%3.2f s/Event) " \
% (startUpTime, eventTime, perEventTime)
def __setMagneticFieldOptions(self, simple):
""" create and configure the magnetic tracking setup """
field = simple.addConfig(
'Geant4FieldTrackingSetupAction/MagFieldTrackingSetup')
field.stepper = self.field.stepper
field.equation = self.field.equation
field.eps_min = self.field.eps_min
field.eps_max = self.field.eps_max
field.min_chord_step = self.field.min_chord_step
field.delta_chord = self.field.delta_chord
field.delta_intersection = self.field.delta_intersection
field.delta_one_step = self.field.delta_one_step
field.largest_step = self.field.largest_step
def __checkFileFormat(self, fileNames, extensions):
"""check if the fileName is allowed, note that the filenames are case
sensitive, and in case of hepevt we depend on this to identify short and long versions of the content
"""
if isinstance(fileNames, basestring):
fileNames = [fileNames]
if not all(fileName.endswith(extensions) for fileName in fileNames):
self._errorMessages.append(
"ERROR: Unknown fileformat for file: %s" % fileNames)
return fileNames
def __applyBoostOrSmear(self, kernel, actionList, mask):
"""apply boost or smearing for given mask index"""
import DDG4
if self.crossingAngleBoost:
lbo = DDG4.GeneratorAction(kernel, "Geant4InteractionVertexBoost")
lbo.Angle = self.crossingAngleBoost
lbo.Mask = mask
actionList.append(lbo)
if any(self.vertexSigma) or any(self.vertexOffset):
vSmear = DDG4.GeneratorAction(kernel,
"Geant4InteractionVertexSmear")
vSmear.Offset = self.vertexOffset
vSmear.Sigma = self.vertexSigma
vSmear.Mask = mask
actionList.append(vSmear)
def __parseAllHelper(self, parsed):
""" parse all the options for the helper """
parsedDict = vars(parsed)
for name, obj in vars(self).iteritems():
if isinstance(obj, ConfigHelper):
for var in obj.getOptions():
key = "%s.%s" % (name, var)
if key in parsedDict:
try:
obj.setOption(var, parsedDict[key])
except RuntimeError as e:
self._errorMessages.append("ERROR: %s " % e)
def __checkOutputLevel(self, level):
"""return outputlevel as int so we don't have to import anything for faster startup"""
try:
level = int(level)
if level < 1 or 7 < level:
raise KeyError
return level
except ValueError:
try:
return outputLevel(level.upper())
except ValueError:
self._errorMessages.append(
"ERROR: printLevel is neither integer nor string")
return -1
except KeyError:
self._errorMessages.append("ERROR: printLevel '%s' unknown" %
level)
return -1
def __setupSensitiveDetectors(self,
detectors,
setupFuction,
defaultFilter=None):
""" attach sensitive detector actions for all subdetectors
can be steered with the `Action` ConfigHelpers
:param detectors: list of detectors
:param setupFunction: function used to register the sensitive detector
"""
for det in detectors:
print 'Setting up SD for %s' % det
action = None
for pattern in self.action.mapActions:
if pattern.lower() in det.lower():
action = self.action.mapActions[pattern]
print ' replace default action with : ', action
break
seq, act = setupFuction(det, type=action)
self.filter.applyFilters(seq, det, defaultFilter)
##set detailed hit creation mode for this
if self.enableDetailedShowerMode:
if isinstance(act, list):
for a in act:
a.HitCreationMode = 2
else:
act.HitCreationMode = 2
def __printSteeringFile(self, parser):
"""print the parameters formated as a steering file"""
steeringFileBase = """from DDSim.DD4hepSimulation import DD4hepSimulation
from g4units import mm, GeV, MeV
SIM = DD4hepSimulation()
"""
optionDict = parser._option_string_actions
parameters = vars(self)
for parName, parameter in sorted(parameters.items(), sortParameters):
if parName.startswith("_"):
continue
if isinstance(parameter, ConfigHelper):
steeringFileBase += "\n\n"
steeringFileBase += "################################################################################\n"
steeringFileBase += "## %s \n" % "\n## ".join(
parameter.__doc__.splitlines())
steeringFileBase += "################################################################################\n"
options = parameter.getOptions()
for opt, optionsDict in sorted(options.iteritems(),
sortParameters):
if opt.startswith("_"):
continue
parValue = optionsDict['default']
if isinstance(optionsDict.get('help'), basestring):
steeringFileBase += "\n## %s\n" % "\n## ".join(
optionsDict.get('help').splitlines())
## add quotes if it is a string
if isinstance(parValue, basestring):
steeringFileBase += "SIM.%s.%s = \"%s\"\n" % (
parName, opt, parValue)
else:
steeringFileBase += "SIM.%s.%s = %s\n" % (parName, opt,
parValue)
else:
## get the docstring from the command line parameter
optionObj = optionDict.get("--" + parName, None)
if isinstance(optionObj, argparse._StoreAction):
steeringFileBase += "## %s\n" % "\n## ".join(
optionObj.help.splitlines())
## add quotes if it is a string
if isinstance(parameter, basestring):
steeringFileBase += "SIM.%s = \"%s\"" % (parName,
str(parameter))
else:
steeringFileBase += "SIM.%s = %s" % (parName,
str(parameter))
steeringFileBase += "\n"
print steeringFileBase
def _consistencyChecks(self):
"""Check if the requested setup makes sense, or if there is something preventing it from working correctly
Appends error messages to self._errorMessages
:returns: None
"""
if not self.compactFile:
self._errorMessages.append(
"ERROR: No geometry compact file provided")
if self.runType == "batch":
if not self.numberOfEvents:
self._errorMessages.append(
"ERROR: Batch mode requested, but did not set number of events"
)
if not self.inputFiles and not self.enableGun:
self._errorMessages.append(
"ERROR: Batch mode requested, but did not set inputFile(s) or gun"
)
if self.inputFiles and (self.enableG4Gun or self.enableG4GPS):
self._errorMessages.append(
"ERROR: Cannot use both inputFiles and Geant4Gun or GeneralParticleSource"
)
if self.enableGun and (self.enableG4Gun or self.enableG4GPS):
self._errorMessages.append(
"ERROR: Cannot use both DD4hepGun and Geant4 Gun or GeneralParticleSource"
)
if self.numberOfEvents < 0 and not self.inputFiles:
self._errorMessages.append(
"ERROR: Negative number of events only sensible for inputFiles"
)
def _enablePrimaryHandler(self):
""" the geant4 Gun or GeneralParticleSource cannot be used together with the PrimaryHandler.
Particles would be simulated multiple times
:returns: True or False
"""
enablePrimaryHandler = not (self.enableG4Gun or self.enableG4GPS)
if enablePrimaryHandler:
print "Enabling the PrimaryHandler"
else:
print "Disabling the PrimaryHandler"
return enablePrimaryHandler
def _buildInputStage(self,
simple,
generator_input_modules,
output_level=None,
have_mctruth=True):
"""
Generic build of the input stage with multiple input modules.
Actions executed are:
1) Register Generation initialization action
2) Append all modules to build the complete input record
These modules are readers/particle sources, boosters and/or smearing actions.
3) Merge all existing interaction records
4) Add the MC truth handler
"""
from DDG4 import GeneratorAction
ga = simple.kernel().generatorAction()
# Register Generation initialization action
gen = GeneratorAction(simple.kernel(),
"Geant4GeneratorActionInit/GenerationInit")
if output_level is not None:
gen.OutputLevel = output_level
ga.adopt(gen)
# Now append all modules to build the complete input record
# These modules are readers/particle sources, boosters and/or smearing actions
for gen in generator_input_modules:
gen.enableUI()
if output_level is not None:
gen.OutputLevel = output_level
ga.adopt(gen)
# Merge all existing interaction records
gen = GeneratorAction(simple.kernel(),
"Geant4InteractionMerger/InteractionMerger")
gen.enableUI()
if output_level is not None:
gen.OutputLevel = output_level
ga.adopt(gen)
# Finally generate Geant4 primaries
if have_mctruth:
gen = GeneratorAction(simple.kernel(),
"Geant4PrimaryHandler/PrimaryHandler")
gen.RejectPDGs = ConfigHelper.makeString(self.physics.rejectPDGs)
gen.enableUI()
if output_level is not None:
gen.OutputLevel = output_level
ga.adopt(gen)
# Puuuhh! All done.
return None
