1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 Revision 1.1 2002/01/08 09:59:34 morsch
19 Readers for EMCAL primary particle input.
25 #include <TParticle.h>
27 #include "AliGenReaderEcalHijing.h"
29 ClassImp(AliGenReaderEcalHijing)
32 AliGenReaderEcalHijing::AliGenReaderEcalHijing()
34 // Default constructor
39 void AliGenReaderEcalHijing::Init()
42 // reset the existing file environment and open a new root file if
43 // the pointer to the Fluka tree is null
47 pFile = new TFile(fFileName);
49 printf("\n I have opened %s file \n", fFileName);
51 // get the tree address in the Fluka boundary source file
52 fTreeNtuple = (TTree*)gDirectory->Get("h2");
53 TTree *h2=fTreeNtuple;
55 //Set branch addresses
56 h2->SetBranchAddress("njatt", &fNjatt);
57 h2->SetBranchAddress("nahij", &fNahij);
58 h2->SetBranchAddress("nphij", &fNphij);
59 h2->SetBranchAddress("khij", fKhij) ;
60 h2->SetBranchAddress("pxhij", fPxhij);
61 h2->SetBranchAddress("pyhij", fPyhij);
62 h2->SetBranchAddress("pzhij", fPzhij);
63 h2->SetBranchAddress("ehij", fEhij) ;
66 Int_t AliGenReaderEcalHijing::NextEvent()
68 // Read the next event
69 Int_t nTracks=0, nread=0;
71 TFile* pFile = fTreeNtuple->GetCurrentFile();
74 Int_t nentries = (Int_t) fTreeNtuple->GetEntries();
75 if (fNcurrent < nentries) {
76 Int_t nb = (Int_t)fTreeNtuple->GetEvent(fNcurrent);
79 printf("\n Next event contains %d tracks! \n", fNphij);
87 TParticle* AliGenReaderEcalHijing::NextParticle()
90 // Read the next particle
91 Int_t ipart = fKhij[fNparticle];
92 p[0] = fPxhij[fNparticle];
93 p[1] = fPyhij[fNparticle];
94 p[2] = fPzhij[fNparticle];
95 p[3] = fEhij[fNparticle];
97 Double_t amass = TDatabasePDG::Instance()->GetParticle(ipart)->Mass();
100 Warning("Generate","Particle %d E = %f mass = %f \n",
103 TParticle* particle =
104 new TParticle(ipart, 0, -1, -1, -1, -1, p[0], p[1], p[2], p[3],
112 AliGenReaderEcalHijing& AliGenReaderEcalHijing::operator=(const AliGenReaderEcalHijing& rhs)
114 // Assignment operator