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 **************************************************************************/
21 // Wrapper for MEVSIM generator.
22 // It is using TMevSim to comunicate with fortarn code
25 // Sylwester Radomski <radomski@if.pw.edu.pl>
28 //#include "TSystem.h"
29 //#include "TUnixSystem.h"
30 #include "TParticle.h"
33 #include "AliGenMevSim.h"
37 ClassImp(AliGenMevSim)
39 //____________________________________________________________________________
40 AliGenMevSim::AliGenMevSim() : AliGenerator(-1)
46 fConfig = new AliMevSimConfig();
47 fgMCEvGen = new TMevSim();
51 //____________________________________________________________________________
52 AliGenMevSim::AliGenMevSim(AliMevSimConfig *config): AliGenerator(-1) {
55 fgMCEvGen = new TMevSim();
59 //____________________________________________________________________________
60 AliGenMevSim::~AliGenMevSim()
63 // Standard destructor
65 if (fgMCEvGen) delete fgMCEvGen;
67 //____________________________________________________________________________
68 void AliGenMevSim::SetConfig(AliMevSimConfig *config) {
72 //____________________________________________________________________________
73 void AliGenMevSim::AddParticleType(AliMevSimParticle *type) {
75 ((TMevSim*)fgMCEvGen)->AddPartTypeParams((TMevSimPartTypeParams*)type);
77 //____________________________________________________________________________
78 void AliGenMevSim::Init()
81 // Generator initialisation method
84 // fill data from AliMevSimConfig;
86 TMevSim *mevsim = (TMevSim*)fgMCEvGen;
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
96 mevsim->SetEtaCutRange( -TMath::Log( TMath::Tan(fThetaMin/2)) , - TMath::Log( TMath::Tan(fThetaMin/2)) );
99 // mevsim specyfic parameters
101 mevsim->SetModelType(fConfig->fModelType);
102 mevsim->SetReacPlaneCntrl(fConfig->fReacPlaneCntrl);
103 mevsim->SetPsiRParams(fConfig->fPsiRMean, fConfig->fPsiRStDev);
104 mevsim->SetMultFacParams(fConfig->fMultFacMean, fConfig->fMultFacStDev);
106 // mevsim initialisation
108 mevsim->Initialize();
111 //____________________________________________________________________________
112 void AliGenMevSim::Generate()
115 // Read the formatted output file and load the particles
116 // Temporary solution
120 Float_t orgin[3] = {0,0,0};
121 Float_t polar[3] = {0,0,0};
122 Float_t p[3] = {1,1,1};
125 const Int_t parent = -1;
132 orgin[0] = fVertex[0];
133 orgin[1] = fVertex[1];
134 orgin[2] = fVertex[2];
137 for (Int_t i =0; i<3; i++)
138 cout << orgin[i] << "\t";
141 Int_t nParticles = 0;
143 TClonesArray *particles = new TClonesArray("TParticle");
146 ((TMevSim*)fgMCEvGen)->GenerateEvent();
147 nParticles = ((TMevSim*)fgMCEvGen)->ImportParticles(particles,"");
149 cout << "Found " << nParticles << " particles ..." << endl;
152 for (Int_t i=0; i<nParticles; i++) {
154 particle = (TParticle*) (*particles)[i];
156 pdg = (PDG_t) particle->GetPdgCode();
157 p[0] = particle->Px();
158 p[1] = particle->Py();
159 p[2] = particle->Pz();
161 gAlice->SetTrack(fTrackIt, parent, pdg, p, orgin, polar, time, kPPrimary, id);
166 if (particles) delete particles;
168 //____________________________________________________________________________
169 //____________________________________________________________________________
174 # define type_of_call
177 # define type_of_call _stdcall
180 extern "C" Float_t type_of_call ran(Int_t &)
182 return sRandom->Rndm();
185 //____________________________________________________________________________