Added new method DisIntegrate(AliMUONHit&, TList& digits) to replace the one in
[u/mrichter/AliRoot.git] / TMEVSIM / AliGenMevSim.cxx
CommitLineData
36b81802 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
7cdba479 16/* $Id$ */
36b81802 17
18//
19// Wrapper for MEVSIM generator.
20// It is using TMevSim to comunicate with fortarn code
21//
22//
23// Sylwester Radomski <radomski@if.pw.edu.pl>
24//
25
85e3d050 26#include <Riostream.h>
27
36b81802 28//#include "TSystem.h"
29//#include "TUnixSystem.h"
30#include "TParticle.h"
31#include "TMevSim.h"
32
33#include "AliGenMevSim.h"
34#include "AliRun.h"
35
88cb7938 36static TRandom * sRandom;
36b81802 37
38ClassImp(AliGenMevSim)
39
40//____________________________________________________________________________
41AliGenMevSim::AliGenMevSim() : AliGenerator(-1)
42{
43 //
44 // Standard creator
45 //
46
47 fConfig = new AliMevSimConfig();
48 fMevSim = new TMevSim();
49 sRandom = fRandom;
50
51}
52//____________________________________________________________________________
53AliGenMevSim::AliGenMevSim(AliMevSimConfig *config): AliGenerator(-1) {
54
55 fConfig = config;
56 fMevSim = new TMevSim();
57 sRandom = fRandom;
58}
59
60//____________________________________________________________________________
61AliGenMevSim::~AliGenMevSim()
62{
63 //
64 // Standard destructor
65 //
66 if (fMevSim) delete fMevSim;
67}
68//____________________________________________________________________________
69void AliGenMevSim::SetConfig(AliMevSimConfig *config) {
70
71 fConfig = config;
72}
73//____________________________________________________________________________
74void AliGenMevSim::AddParticleType(AliMevSimParticle *type) {
75
76 fMevSim->AddPartTypeParams((TMevSimPartTypeParams*)type);
77}
78//____________________________________________________________________________
79void AliGenMevSim::Init()
80{
81 //
82 // Generator initialisation method
83 //
84
85 // fill data from AliMevSimConfig;
86
87 TMevSim *mevsim = fMevSim;
88
89 // geometry & momentum cut
90
91 if (TestBit(kPtRange)) mevsim->SetPtCutRange(fPtMin, fPtMax);
92
93 if (TestBit(kPhiRange)) // from radians to 0 - 360 deg
94 mevsim->SetPhiCutRange( fPhiMin * 180 / TMath::Pi() , fPhiMax * 180 / TMath::Pi() );
95
96 if (TestBit(kThetaRange)) // from theta to eta
97 {
98 mevsim->SetEtaCutRange( -TMath::Log( TMath::Tan(fThetaMax/2)) , -TMath::Log( TMath::Tan(fThetaMin/2)) );
99 }
100
101 // mevsim specyfic parameters
102
bb52edc0 103 mevsim->SetModelType(fConfig->GetModelType());
104 Int_t ctrl; Float_t psiRMean = 0; Float_t psiRStDev = 0;
105 fConfig->GetRectPlane(ctrl,psiRMean,psiRStDev);
106 mevsim->SetReacPlaneCntrl(ctrl);
107 mevsim->SetPsiRParams(psiRMean, psiRStDev);
108 Float_t mean; Float_t stDev;
109 fConfig->GetMultFac(mean,stDev);
110 mevsim->SetMultFacParams(mean,stDev);
36b81802 111 // mevsim initialisation
112
113 mevsim->Initialize();
114}
115
116//____________________________________________________________________________
117void AliGenMevSim::Generate()
118{
119 //
120 // Read the formatted output file and load the particles
121 // Temporary solution
122 //
123
124 Int_t i;
125
126 PDG_t pdg;
127 Float_t orgin[3] = {0,0,0};
128 Float_t polar[3] = {0,0,0};
129 Float_t p[3] = {1,1,1};
130 Float_t time = 0;
131
132 const Int_t parent = -1;
133 Int_t id;
134
135 // vertexing
136
137 VertexInternal();
138
139 orgin[0] = fVertex[0];
140 orgin[1] = fVertex[1];
141 orgin[2] = fVertex[2];
142
143 cout << "Vertex ";
144 for (i =0; i<3; i++)
145 cout << orgin[i] << "\t";
146 cout << endl;
147
148 Int_t nParticles = 0;
149
150 TClonesArray *particles = new TClonesArray("TParticle");
151 TParticle *particle;
152
153 fMevSim->GenerateEvent();
154 fNpart= fMevSim->ImportParticles(particles,"");
155
156 cout << "Found " << fNpart << " particles ..." << endl;
157 nParticles = fNpart;
158
159 for (i=0; i<nParticles; i++) {
160
161 particle = (TParticle*) (*particles)[i];
162
163 pdg = (PDG_t) particle->GetPdgCode();
164 p[0] = particle->Px();
165 p[1] = particle->Py();
166 p[2] = particle->Pz();
167
642f15cf 168 PushTrack(fTrackIt, parent, pdg, p, orgin, polar, time, kPPrimary, id);
36b81802 169
170 }
171
172 particles->Clear();
173 if (particles) delete particles;
174}
175//____________________________________________________________________________
176//____________________________________________________________________________
177
178
179#ifndef WIN32
180# define ran ran_
181# define type_of_call
182#else
183# define ran RAN
184# define type_of_call _stdcall
185#endif
186
187extern "C" Float_t type_of_call ran(Int_t &)
188{
189 return sRandom->Rndm();
190}
191
192//____________________________________________________________________________