Inheritance diagram for jobOption.PtEtaHistParticleSampler:

Collaboration diagram for jobOption.PtEtaHistParticleSampler:

Public Member Functions
def	__init__ (self, pid, histfile, num=100)

def	shoot (self)

Public Attributes
	pid

	hist

	numparticles

Detailed Description

Definition at line 13 of file jobOption.ParticleGun_corrhist.py.

Constructor & Destructor Documentation

◆ init()

def jobOption.PtEtaHistParticleSampler.__init__	(	self,
		pid,
		histfile,
		num = `100`
	)

Definition at line 16 of file jobOption.ParticleGun_corrhist.py.

     def __init__(self, pid, histfile, num=100):
         self.pid = PG.mksampler(pid)
         self.hist = PG.TH2(histfile, "h_pt_eta")
         self.numparticles = num
  

Member Function Documentation

◆ shoot()

def jobOption.PtEtaHistParticleSampler.shoot ( self )

Definition at line 21 of file jobOption.ParticleGun_corrhist.py.

     def shoot(self):
         "Return a vector of sampled particles from the provided pT--eta histogram"
         particles = []
         for i in xrange(self.numparticles):
             ptrand, etarand = self.hist.GetRandom()
             ptrand *= 1000 # NB. This _particular_ histogram is in GeV, but Athena needs MeV!
             # TODO: Provide 4-mom construction functions to avoid building this one-time sampler
             pid = self.pid()
             mom = PG.PtEtaMPhiSampler(pt=ptrand, eta=etarand, mass=PG.MASSES[abs(pid)])
             p = PG.SampledParticle(pid, mom())
             #print p.mom.Pt(), "\t", p.mom.Eta(), "\t", p.mom.Phi(), "\t", p.mom.M()
             particles.append(p)
         return particles
  