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 1.13 2001/10/21 18:35:56 hristov
19 Several pointers were set to zero in the default constructors to avoid memory management problems
21 Revision 1.12 2001/06/18 13:07:30 morsch
22 Forward kinematic ranges to entries only if not set by user.
24 Revision 1.11 2001/01/30 09:23:12 hristov
25 Streamers removed (R.Brun)
27 Revision 1.10 2001/01/26 19:55:49 hristov
28 Major upgrade of AliRoot code
30 Revision 1.9 2000/12/21 16:24:06 morsch
31 Coding convention clean-up
33 Revision 1.8 2000/10/27 13:53:29 morsch
34 AddGenerator: check testbit before setting the pT and momentum range
37 Revision 1.7 2000/10/02 15:15:41 morsch
38 Use default streamer for AliGenCocktail
40 Revision 1.6 2000/09/07 17:04:31 morsch
41 In Streamer: TIter() after R__b << fEntries (Dmitri Yurevitch Peressounko)
43 Revision 1.5 2000/06/09 20:28:51 morsch
44 All coding rule violations except RS3 corrected (AM)
46 Revision 1.4 1999/09/29 09:24:12 fca
47 Introduction of the Copyright and cvs Log
51 // Container class for AliGenerator through recursion.
52 // Container is itself an AliGenerator.
53 // What is stored are not the pointers to the generators directly but to objects of type
54 // AliGenCocktail entry.
55 // The class provides also iterator functionality.
56 // Author: andreas.morsch@cern.ch
59 #include "AliGenCocktail.h"
60 #include "AliGenCocktailEntry.h"
64 ClassImp(AliGenCocktail)
66 AliGenCocktail::AliGenCocktail()
71 fTitle= "Particle Generator using cocktail of generators";
78 AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail)
83 AliGenCocktail::~AliGenCocktail()
90 AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp)
93 // Forward parameters to the new generator
94 if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
95 Generator->SetPtRange(fPtMin,fPtMax);
96 if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
97 Generator->SetMomentumRange(fPMin,fPMax);
99 if (!(Generator->TestBit(kYRange)))
100 Generator->SetYRange(fYMin,fYMax);
101 if (!(Generator->TestBit(kPhiRange)))
102 Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
103 if (!(Generator->TestBit(kThetaRange)))
104 Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
105 if (!(Generator->TestBit(kVertexRange)))
106 Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
108 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
109 Generator->SetVertexSmear(fVertexSmear);
110 Generator->SetTrackingFlag(fTrackIt);
112 // Add generator to list
114 AliGenCocktailEntry *entry =
115 new AliGenCocktailEntry(Generator, Name, RateExp);
116 fEntries->Add(entry);
120 void AliGenCocktail::Init()
123 TIter next(fEntries);
124 AliGenCocktailEntry *entry;
126 // Loop over generators and initialize
127 while((entry = (AliGenCocktailEntry*)next())) {
128 entry->Generator()->Init();
132 void AliGenCocktail::Generate()
136 TIter next(fEntries);
137 AliGenCocktailEntry *entry;
138 AliGenCocktailEntry *e1;
139 AliGenCocktailEntry *e2;
140 TObjArray *partArray = gAlice->Particles();
142 // Loop over generators and generate events
144 while((entry = (AliGenCocktailEntry*)next())) {
149 entry->SetFirst((partArray->GetEntriesFast())+1);
151 entry->Generator()->Generate();
152 entry->SetLast(partArray->GetEntriesFast());
155 while((entry = (AliGenCocktailEntry*)next())) {
158 for (entry=FirstGenerator();
160 entry=NextGenerator()
164 for (FirstGeneratorPair(e1,e2);
166 NextGeneratorPair(e1,e2)
168 printf("\n -----------------------------");
174 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
176 // Iterator over generators: Initialisation
177 flnk1 = fEntries->FirstLink();
179 return (AliGenCocktailEntry*) (flnk1->GetObject());
185 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
187 // Iterator over generators: Increment
188 flnk1 = flnk1->Next();
190 return (AliGenCocktailEntry*) (flnk1->GetObject());
196 void AliGenCocktail::
197 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
199 // Iterator over generator pairs: Initialisation
200 flnk2 = flnk1 = fEntries->FirstLink();
202 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
208 void AliGenCocktail::
209 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
211 // Iterator over generators: Increment
212 flnk2 = flnk2->Next();
214 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
215 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
217 flnk2 = flnk1 = flnk1->Next();
219 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
220 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
228 AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
230 // Assignment operator