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 2001/03/24 10:04:44 morsch
19 MevSim interfaced through AliGenerator, first commit (Sylwester Radomski et al.)
24 // Wrapper for MEVSIM generator.
25 // It is using TMevSim to comunicate with fortarn code
28 // Sylwester Radomski <radomski@if.pw.edu.pl>
31 //#include "TSystem.h"
32 //#include "TUnixSystem.h"
33 #include "TParticle.h"
36 #include "AliGenMevSim.h"
40 ClassImp(AliGenMevSim)
42 //____________________________________________________________________________
43 AliGenMevSim::AliGenMevSim() : AliGenerator(-1)
49 fConfig = new AliMevSimConfig();
50 fgMCEvGen = new TMevSim();
54 //____________________________________________________________________________
55 AliGenMevSim::AliGenMevSim(AliMevSimConfig *config): AliGenerator(-1) {
58 fgMCEvGen = new TMevSim();
62 //____________________________________________________________________________
63 AliGenMevSim::~AliGenMevSim()
66 // Standard destructor
68 if (fgMCEvGen) delete fgMCEvGen;
70 //____________________________________________________________________________
71 void AliGenMevSim::SetConfig(AliMevSimConfig *config) {
75 //____________________________________________________________________________
76 void AliGenMevSim::AddParticleType(AliMevSimParticle *type) {
78 ((TMevSim*)fgMCEvGen)->AddPartTypeParams((TMevSimPartTypeParams*)type);
80 //____________________________________________________________________________
81 void AliGenMevSim::Init()
84 // Generator initialisation method
87 // fill data from AliMevSimConfig;
89 TMevSim *mevsim = (TMevSim*)fgMCEvGen;
91 // geometry & momentum cut
93 if (TestBit(kPtRange)) mevsim->SetPtCutRange(fPtMin, fPtMax);
95 if (TestBit(kPhiRange)) // from radians to 0 - 360 deg
96 mevsim->SetPhiCutRange( fPhiMin * 180 / TMath::Pi() , fPhiMax * 180 / TMath::Pi() );
98 if (TestBit(kThetaRange)) // from theta to eta
99 mevsim->SetEtaCutRange( -TMath::Log( TMath::Tan(fThetaMin/2)) , - TMath::Log( TMath::Tan(fThetaMin/2)) );
102 // mevsim specyfic parameters
104 mevsim->SetModelType(fConfig->fModelType);
105 mevsim->SetReacPlaneCntrl(fConfig->fReacPlaneCntrl);
106 mevsim->SetPsiRParams(fConfig->fPsiRMean, fConfig->fPsiRStDev);
107 mevsim->SetMultFacParams(fConfig->fMultFacMean, fConfig->fMultFacStDev);
109 // mevsim initialisation
111 mevsim->Initialize();
114 //____________________________________________________________________________
115 void AliGenMevSim::Generate()
118 // Read the formatted output file and load the particles
119 // Temporary solution
125 Float_t orgin[3] = {0,0,0};
126 Float_t polar[3] = {0,0,0};
127 Float_t p[3] = {1,1,1};
130 const Int_t parent = -1;
137 orgin[0] = fVertex[0];
138 orgin[1] = fVertex[1];
139 orgin[2] = fVertex[2];
143 cout << orgin[i] << "\t";
146 Int_t nParticles = 0;
148 TClonesArray *particles = new TClonesArray("TParticle");
151 ((TMevSim*)fgMCEvGen)->GenerateEvent();
152 nParticles = ((TMevSim*)fgMCEvGen)->ImportParticles(particles,"");
154 cout << "Found " << nParticles << " particles ..." << endl;
157 for (i=0; i<nParticles; i++) {
159 particle = (TParticle*) (*particles)[i];
161 pdg = (PDG_t) particle->GetPdgCode();
162 p[0] = particle->Px();
163 p[1] = particle->Py();
164 p[2] = particle->Pz();
166 gAlice->SetTrack(fTrackIt, parent, pdg, p, orgin, polar, time, kPPrimary, id);
171 if (particles) delete particles;
173 //____________________________________________________________________________
174 //____________________________________________________________________________
179 # define type_of_call
182 # define type_of_call _stdcall
185 extern "C" Float_t type_of_call ran(Int_t &)
187 return sRandom->Rndm();
190 //____________________________________________________________________________