Inheritance diagram for jobOption.PtEtaHistParticleSampler:

Collaboration diagram for jobOption.PtEtaHistParticleSampler:

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

Public Attributes
	pid = PG.mksampler(pid)
	hist = PG.TH2(histfile, "h_pt_eta")
	numparticles = num

Detailed Description

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

Constructor & Destructor Documentation

◆ init()

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()

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
 