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 1.11 2001/01/30 09:23:12 hristov
19 Streamers removed (R.Brun)
21 Revision 1.10 2001/01/26 19:55:49 hristov
22 Major upgrade of AliRoot code
24 Revision 1.9 2000/12/21 16:24:06 morsch
25 Coding convention clean-up
27 Revision 1.8 2000/10/27 13:53:29 morsch
28 AddGenerator: check testbit before setting the pT and momentum range
31 Revision 1.7 2000/10/02 15:15:41 morsch
32 Use default streamer for AliGenCocktail
34 Revision 1.6 2000/09/07 17:04:31 morsch
35 In Streamer: TIter() after R__b << fEntries (Dmitri Yurevitch Peressounko)
37 Revision 1.5 2000/06/09 20:28:51 morsch
38 All coding rule violations except RS3 corrected (AM)
40 Revision 1.4 1999/09/29 09:24:12 fca
41 Introduction of the Copyright and cvs Log
45 // Container class for AliGenerator through recursion.
46 // Container is itself an AliGenerator.
47 // What is stored are not the pointers to the generators directly but to objects of type
48 // AliGenCocktail entry.
49 // The class provides also iterator functionality.
50 // Author: andreas.morsch@cern.ch
53 #include "AliGenCocktail.h"
54 #include "AliGenCocktailEntry.h"
58 ClassImp(AliGenCocktail)
60 AliGenCocktail::AliGenCocktail()
68 AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail)
73 AliGenCocktail::~AliGenCocktail()
80 AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp)
83 // Forward parameters to the new generator
84 if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
85 Generator->SetPtRange(fPtMin,fPtMax);
86 if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
87 Generator->SetMomentumRange(fPMin,fPMax);
89 if (!(Generator->TestBit(kYRange)))
90 Generator->SetYRange(fYMin,fYMax);
91 if (!(Generator->TestBit(kPhiRange)))
92 Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
93 if (!(Generator->TestBit(kThetaRange)))
94 Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
95 if (!(Generator->TestBit(kVertexRange)))
96 Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
98 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
99 Generator->SetVertexSmear(fVertexSmear);
100 Generator->SetTrackingFlag(fTrackIt);
102 // Add generator to list
104 AliGenCocktailEntry *entry =
105 new AliGenCocktailEntry(Generator, Name, RateExp);
106 fEntries->Add(entry);
110 void AliGenCocktail::Init()
113 TIter next(fEntries);
114 AliGenCocktailEntry *entry;
116 // Loop over generators and initialize
117 while((entry = (AliGenCocktailEntry*)next())) {
118 entry->Generator()->Init();
122 void AliGenCocktail::Generate()
126 TIter next(fEntries);
127 AliGenCocktailEntry *entry;
128 AliGenCocktailEntry *e1;
129 AliGenCocktailEntry *e2;
130 TObjArray *partArray = gAlice->Particles();
132 // Loop over generators and generate events
134 while((entry = (AliGenCocktailEntry*)next())) {
139 entry->SetFirst((partArray->GetEntriesFast())+1);
141 entry->Generator()->Generate();
142 entry->SetLast(partArray->GetEntriesFast());
145 while((entry = (AliGenCocktailEntry*)next())) {
148 for (entry=FirstGenerator();
150 entry=NextGenerator()
154 for (FirstGeneratorPair(e1,e2);
156 NextGeneratorPair(e1,e2)
158 printf("\n -----------------------------");
164 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
166 // Iterator over generators: Initialisation
167 flnk1 = fEntries->FirstLink();
169 return (AliGenCocktailEntry*) (flnk1->GetObject());
175 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
177 // Iterator over generators: Increment
178 flnk1 = flnk1->Next();
180 return (AliGenCocktailEntry*) (flnk1->GetObject());
186 void AliGenCocktail::
187 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
189 // Iterator over generator pairs: Initialisation
190 flnk2 = flnk1 = fEntries->FirstLink();
192 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
198 void AliGenCocktail::
199 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
201 // Iterator over generators: Increment
202 flnk2 = flnk2->Next();
204 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
205 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
207 flnk2 = flnk1 = flnk1->Next();
209 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
210 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
218 AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
220 // Assignment operator