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b7e18fda | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
3f4b45cb | 18 | Revision 1.2 2001/03/28 07:31:48 hristov |
19 | Loop variables declared only once (HP,Sun) | |
20 | ||
87cc7ee3 | 21 | Revision 1.1 2001/03/24 10:04:44 morsch |
22 | MevSim interfaced through AliGenerator, first commit (Sylwester Radomski et al.) | |
3f4b45cb | 23 | //Piotr Skowronski Line 104: fThetaMin-->fThetaMax |
b7e18fda | 24 | */ |
25 | ||
26 | // | |
27 | // Wrapper for MEVSIM generator. | |
28 | // It is using TMevSim to comunicate with fortarn code | |
29 | // | |
30 | // | |
31 | // Sylwester Radomski <radomski@if.pw.edu.pl> | |
32 | // | |
33 | ||
34 | //#include "TSystem.h" | |
35 | //#include "TUnixSystem.h" | |
36 | #include "TParticle.h" | |
37 | #include "TMevSim.h" | |
38 | ||
39 | #include "AliGenMevSim.h" | |
40 | #include "AliRun.h" | |
41 | ||
42 | ||
43 | ClassImp(AliGenMevSim) | |
44 | ||
45 | //____________________________________________________________________________ | |
46 | AliGenMevSim::AliGenMevSim() : AliGenerator(-1) | |
47 | { | |
48 | // | |
49 | // Standard creator | |
50 | // | |
51 | ||
52 | fConfig = new AliMevSimConfig(); | |
3f4b45cb | 53 | fMevSim = new TMevSim(); |
b7e18fda | 54 | sRandom = fRandom; |
55 | ||
56 | } | |
57 | //____________________________________________________________________________ | |
58 | AliGenMevSim::AliGenMevSim(AliMevSimConfig *config): AliGenerator(-1) { | |
59 | ||
60 | fConfig = config; | |
3f4b45cb | 61 | fMevSim = new TMevSim(); |
b7e18fda | 62 | sRandom = fRandom; |
63 | } | |
64 | ||
65 | //____________________________________________________________________________ | |
66 | AliGenMevSim::~AliGenMevSim() | |
67 | { | |
68 | // | |
69 | // Standard destructor | |
70 | // | |
3f4b45cb | 71 | if (fMevSim) delete fMevSim; |
b7e18fda | 72 | } |
73 | //____________________________________________________________________________ | |
74 | void AliGenMevSim::SetConfig(AliMevSimConfig *config) { | |
75 | ||
76 | fConfig = config; | |
77 | } | |
78 | //____________________________________________________________________________ | |
79 | void AliGenMevSim::AddParticleType(AliMevSimParticle *type) { | |
80 | ||
3f4b45cb | 81 | fMevSim->AddPartTypeParams((TMevSimPartTypeParams*)type); |
b7e18fda | 82 | } |
83 | //____________________________________________________________________________ | |
84 | void AliGenMevSim::Init() | |
85 | { | |
86 | // | |
87 | // Generator initialisation method | |
88 | // | |
89 | ||
90 | // fill data from AliMevSimConfig; | |
91 | ||
3f4b45cb | 92 | TMevSim *mevsim = fMevSim; |
b7e18fda | 93 | |
94 | // geometry & momentum cut | |
95 | ||
96 | if (TestBit(kPtRange)) mevsim->SetPtCutRange(fPtMin, fPtMax); | |
97 | ||
98 | if (TestBit(kPhiRange)) // from radians to 0 - 360 deg | |
99 | mevsim->SetPhiCutRange( fPhiMin * 180 / TMath::Pi() , fPhiMax * 180 / TMath::Pi() ); | |
100 | ||
101 | if (TestBit(kThetaRange)) // from theta to eta | |
3f4b45cb | 102 | { |
103 | mevsim->SetEtaCutRange( -TMath::Log( TMath::Tan(fThetaMax/2)) , -TMath::Log( TMath::Tan(fThetaMin/2)) ); | |
104 | } | |
b7e18fda | 105 | |
106 | // mevsim specyfic parameters | |
107 | ||
108 | mevsim->SetModelType(fConfig->fModelType); | |
109 | mevsim->SetReacPlaneCntrl(fConfig->fReacPlaneCntrl); | |
110 | mevsim->SetPsiRParams(fConfig->fPsiRMean, fConfig->fPsiRStDev); | |
111 | mevsim->SetMultFacParams(fConfig->fMultFacMean, fConfig->fMultFacStDev); | |
112 | ||
113 | // mevsim initialisation | |
114 | ||
115 | mevsim->Initialize(); | |
116 | } | |
117 | ||
118 | //____________________________________________________________________________ | |
119 | void AliGenMevSim::Generate() | |
120 | { | |
121 | // | |
122 | // Read the formatted output file and load the particles | |
123 | // Temporary solution | |
124 | // | |
125 | ||
87cc7ee3 | 126 | Int_t i; |
127 | ||
b7e18fda | 128 | PDG_t pdg; |
129 | Float_t orgin[3] = {0,0,0}; | |
130 | Float_t polar[3] = {0,0,0}; | |
131 | Float_t p[3] = {1,1,1}; | |
132 | Float_t time = 0; | |
133 | ||
134 | const Int_t parent = -1; | |
135 | Int_t id; | |
136 | ||
137 | // vertexing | |
138 | ||
139 | VertexInternal(); | |
140 | ||
141 | orgin[0] = fVertex[0]; | |
142 | orgin[1] = fVertex[1]; | |
143 | orgin[2] = fVertex[2]; | |
144 | ||
145 | cout << "Vertex "; | |
87cc7ee3 | 146 | for (i =0; i<3; i++) |
b7e18fda | 147 | cout << orgin[i] << "\t"; |
148 | cout << endl; | |
149 | ||
150 | Int_t nParticles = 0; | |
151 | ||
152 | TClonesArray *particles = new TClonesArray("TParticle"); | |
153 | TParticle *particle; | |
154 | ||
3f4b45cb | 155 | fMevSim->GenerateEvent(); |
156 | fNpart= fMevSim->ImportParticles(particles,""); | |
b7e18fda | 157 | |
3f4b45cb | 158 | cout << "Found " << fNpart << " particles ..." << endl; |
159 | nParticles = fNpart; | |
b7e18fda | 160 | |
87cc7ee3 | 161 | for (i=0; i<nParticles; i++) { |
b7e18fda | 162 | |
163 | particle = (TParticle*) (*particles)[i]; | |
164 | ||
165 | pdg = (PDG_t) particle->GetPdgCode(); | |
166 | p[0] = particle->Px(); | |
167 | p[1] = particle->Py(); | |
168 | p[2] = particle->Pz(); | |
169 | ||
3f4b45cb | 170 | SetTrack(fTrackIt, parent, pdg, p, orgin, polar, time, kPPrimary, id); |
b7e18fda | 171 | |
172 | } | |
173 | ||
174 | particles->Clear(); | |
175 | if (particles) delete particles; | |
176 | } | |
177 | //____________________________________________________________________________ | |
178 | //____________________________________________________________________________ | |
179 | ||
180 | ||
181 | #ifndef WIN32 | |
182 | # define ran ran_ | |
183 | # define type_of_call | |
184 | #else | |
185 | # define ran RAN | |
186 | # define type_of_call _stdcall | |
187 | #endif | |
188 | ||
189 | extern "C" Float_t type_of_call ran(Int_t &) | |
190 | { | |
191 | return sRandom->Rndm(); | |
192 | } | |
193 | ||
194 | //____________________________________________________________________________ |