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 **************************************************************************/
19 // Wrapper for MEVSIM generator.
20 // It is using TMevSim to comunicate with fortarn code
23 // Sylwester Radomski <radomski@if.pw.edu.pl>
26 //#include "TSystem.h"
27 //#include "TUnixSystem.h"
28 #include "TParticle.h"
31 #include "AliGenMevSim.h"
35 ClassImp(AliGenMevSim)
37 static TRandom * sRandom;
39 //____________________________________________________________________________
40 AliGenMevSim::AliGenMevSim() : AliGenerator(-1)
46 fConfig = new AliMevSimConfig();
47 fMevSim = new TMevSim();
51 //____________________________________________________________________________
52 AliGenMevSim::AliGenMevSim(AliMevSimConfig *config): AliGenerator(-1) {
55 fMevSim = new TMevSim();
59 //____________________________________________________________________________
60 AliGenMevSim::~AliGenMevSim()
63 // Standard destructor
65 if (fMevSim) delete fMevSim;
67 //____________________________________________________________________________
68 void AliGenMevSim::SetConfig(AliMevSimConfig *config) {
72 //____________________________________________________________________________
73 void AliGenMevSim::AddParticleType(AliMevSimParticle *type) {
75 fMevSim->AddPartTypeParams((TMevSimPartTypeParams*)type);
77 //____________________________________________________________________________
78 void AliGenMevSim::Init()
81 // Generator initialisation method
84 // fill data from AliMevSimConfig;
86 TMevSim *mevsim = fMevSim;
88 // geometry & momentum cut
90 if (TestBit(kPtRange)) mevsim->SetPtCutRange(fPtMin, fPtMax);
92 if (TestBit(kPhiRange)) // from radians to 0 - 360 deg
93 mevsim->SetPhiCutRange( fPhiMin * 180 / TMath::Pi() , fPhiMax * 180 / TMath::Pi() );
95 if (TestBit(kThetaRange)) // from theta to eta
97 mevsim->SetEtaCutRange( -TMath::Log( TMath::Tan(fThetaMax/2)) , -TMath::Log( TMath::Tan(fThetaMin/2)) );
100 // mevsim specyfic parameters
102 mevsim->SetModelType(fConfig->fModelType);
103 mevsim->SetReacPlaneCntrl(fConfig->fReacPlaneCntrl);
104 mevsim->SetPsiRParams(fConfig->fPsiRMean, fConfig->fPsiRStDev);
105 mevsim->SetMultFacParams(fConfig->fMultFacMean, fConfig->fMultFacStDev);
107 // mevsim initialisation
109 mevsim->Initialize();
112 //____________________________________________________________________________
113 void AliGenMevSim::Generate()
116 // Read the formatted output file and load the particles
117 // Temporary solution
123 Float_t orgin[3] = {0,0,0};
124 Float_t polar[3] = {0,0,0};
125 Float_t p[3] = {1,1,1};
128 const Int_t parent = -1;
135 orgin[0] = fVertex[0];
136 orgin[1] = fVertex[1];
137 orgin[2] = fVertex[2];
141 cout << orgin[i] << "\t";
144 Int_t nParticles = 0;
146 TClonesArray *particles = new TClonesArray("TParticle");
149 fMevSim->GenerateEvent();
150 fNpart= fMevSim->ImportParticles(particles,"");
152 cout << "Found " << fNpart << " particles ..." << endl;
155 for (i=0; i<nParticles; i++) {
157 particle = (TParticle*) (*particles)[i];
159 pdg = (PDG_t) particle->GetPdgCode();
160 p[0] = particle->Px();
161 p[1] = particle->Py();
162 p[2] = particle->Pz();
164 SetTrack(fTrackIt, parent, pdg, p, orgin, polar, time, kPPrimary, id);
169 if (particles) delete particles;
171 //____________________________________________________________________________
172 //____________________________________________________________________________
177 # define type_of_call
180 # define type_of_call _stdcall
183 extern "C" Float_t type_of_call ran(Int_t &)
185 return sRandom->Rndm();
188 //____________________________________________________________________________