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 1.10 2001/01/26 19:55:49 hristov
19 Major upgrade of AliRoot code
21 Revision 1.9 2000/12/21 16:24:06 morsch
22 Coding convention clean-up
24 Revision 1.8 2000/10/27 13:53:29 morsch
25 AddGenerator: check testbit before setting the pT and momentum range
28 Revision 1.7 2000/10/02 15:15:41 morsch
29 Use default streamer for AliGenCocktail
31 Revision 1.6 2000/09/07 17:04:31 morsch
32 In Streamer: TIter() after R__b << fEntries (Dmitri Yurevitch Peressounko)
34 Revision 1.5 2000/06/09 20:28:51 morsch
35 All coding rule violations except RS3 corrected (AM)
37 Revision 1.4 1999/09/29 09:24:12 fca
38 Introduction of the Copyright and cvs Log
42 // Container class for AliGenerator through recursion.
43 // Container is itself an AliGenerator.
44 // What is stored are not the pointers to the generators directly but to objects of type
45 // AliGenCocktail entry.
46 // The class provides also iterator functionality.
47 // Author: andreas.morsch@cern.ch
50 #include "AliGenCocktail.h"
51 #include "AliGenCocktailEntry.h"
55 ClassImp(AliGenCocktail)
57 AliGenCocktail::AliGenCocktail()
65 AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail)
70 AliGenCocktail::~AliGenCocktail()
77 AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp)
80 // Forward parameters to the new generator
82 Generator->SetPtRange(fPtMin,fPtMax);
83 if(TestBit(kMomentumRange))
84 Generator->SetMomentumRange(fPMin,fPMax);
86 Generator->SetYRange(fYMin,fYMax);
88 SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
90 SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
92 SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
94 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
95 Generator->SetVertexSmear(fVertexSmear);
96 Generator->SetTrackingFlag(fTrackIt);
98 // Add generator to list
100 AliGenCocktailEntry *entry =
101 new AliGenCocktailEntry(Generator, Name, RateExp);
102 fEntries->Add(entry);
106 void AliGenCocktail::Init()
109 TIter next(fEntries);
110 AliGenCocktailEntry *entry;
112 // Loop over generators and initialize
113 while((entry = (AliGenCocktailEntry*)next())) {
114 entry->Generator()->Init();
118 void AliGenCocktail::Generate()
122 TIter next(fEntries);
123 AliGenCocktailEntry *entry;
124 AliGenCocktailEntry *e1;
125 AliGenCocktailEntry *e2;
126 TObjArray *partArray = gAlice->Particles();
128 // Loop over generators and generate events
130 while((entry = (AliGenCocktailEntry*)next())) {
135 entry->SetFirst((partArray->GetEntriesFast())+1);
137 entry->Generator()->Generate();
138 entry->SetLast(partArray->GetEntriesFast());
141 while((entry = (AliGenCocktailEntry*)next())) {
144 for (entry=FirstGenerator();
146 entry=NextGenerator()
150 for (FirstGeneratorPair(e1,e2);
152 NextGeneratorPair(e1,e2)
154 printf("\n -----------------------------");
160 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
162 // Iterator over generators: Initialisation
163 flnk1 = fEntries->FirstLink();
165 return (AliGenCocktailEntry*) (flnk1->GetObject());
171 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
173 // Iterator over generators: Increment
174 flnk1 = flnk1->Next();
176 return (AliGenCocktailEntry*) (flnk1->GetObject());
182 void AliGenCocktail::
183 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
185 // Iterator over generator pairs: Initialisation
186 flnk2 = flnk1 = fEntries->FirstLink();
188 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
194 void AliGenCocktail::
195 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
197 // Iterator over generators: Increment
198 flnk2 = flnk2->Next();
200 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
201 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
203 flnk2 = flnk1 = flnk1->Next();
205 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
206 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
214 AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
216 // Assignment operator