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 1.12 2001/06/18 13:07:30 morsch
19 Forward kinematic ranges to entries only if not set by user.
21 Revision 1.11 2001/01/30 09:23:12 hristov
22 Streamers removed (R.Brun)
24 Revision 1.10 2001/01/26 19:55:49 hristov
25 Major upgrade of AliRoot code
27 Revision 1.9 2000/12/21 16:24:06 morsch
28 Coding convention clean-up
30 Revision 1.8 2000/10/27 13:53:29 morsch
31 AddGenerator: check testbit before setting the pT and momentum range
34 Revision 1.7 2000/10/02 15:15:41 morsch
35 Use default streamer for AliGenCocktail
37 Revision 1.6 2000/09/07 17:04:31 morsch
38 In Streamer: TIter() after R__b << fEntries (Dmitri Yurevitch Peressounko)
40 Revision 1.5 2000/06/09 20:28:51 morsch
41 All coding rule violations except RS3 corrected (AM)
43 Revision 1.4 1999/09/29 09:24:12 fca
44 Introduction of the Copyright and cvs Log
48 // Container class for AliGenerator through recursion.
49 // Container is itself an AliGenerator.
50 // What is stored are not the pointers to the generators directly but to objects of type
51 // AliGenCocktail entry.
52 // The class provides also iterator functionality.
53 // Author: andreas.morsch@cern.ch
56 #include "AliGenCocktail.h"
57 #include "AliGenCocktailEntry.h"
61 ClassImp(AliGenCocktail)
63 AliGenCocktail::AliGenCocktail()
73 AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail)
78 AliGenCocktail::~AliGenCocktail()
85 AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp)
88 // Forward parameters to the new generator
89 if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
90 Generator->SetPtRange(fPtMin,fPtMax);
91 if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
92 Generator->SetMomentumRange(fPMin,fPMax);
94 if (!(Generator->TestBit(kYRange)))
95 Generator->SetYRange(fYMin,fYMax);
96 if (!(Generator->TestBit(kPhiRange)))
97 Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
98 if (!(Generator->TestBit(kThetaRange)))
99 Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
100 if (!(Generator->TestBit(kVertexRange)))
101 Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
103 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
104 Generator->SetVertexSmear(fVertexSmear);
105 Generator->SetTrackingFlag(fTrackIt);
107 // Add generator to list
109 AliGenCocktailEntry *entry =
110 new AliGenCocktailEntry(Generator, Name, RateExp);
111 fEntries->Add(entry);
115 void AliGenCocktail::Init()
118 TIter next(fEntries);
119 AliGenCocktailEntry *entry;
121 // Loop over generators and initialize
122 while((entry = (AliGenCocktailEntry*)next())) {
123 entry->Generator()->Init();
127 void AliGenCocktail::Generate()
131 TIter next(fEntries);
132 AliGenCocktailEntry *entry;
133 AliGenCocktailEntry *e1;
134 AliGenCocktailEntry *e2;
135 TObjArray *partArray = gAlice->Particles();
137 // Loop over generators and generate events
139 while((entry = (AliGenCocktailEntry*)next())) {
144 entry->SetFirst((partArray->GetEntriesFast())+1);
146 entry->Generator()->Generate();
147 entry->SetLast(partArray->GetEntriesFast());
150 while((entry = (AliGenCocktailEntry*)next())) {
153 for (entry=FirstGenerator();
155 entry=NextGenerator()
159 for (FirstGeneratorPair(e1,e2);
161 NextGeneratorPair(e1,e2)
163 printf("\n -----------------------------");
169 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
171 // Iterator over generators: Initialisation
172 flnk1 = fEntries->FirstLink();
174 return (AliGenCocktailEntry*) (flnk1->GetObject());
180 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
182 // Iterator over generators: Increment
183 flnk1 = flnk1->Next();
185 return (AliGenCocktailEntry*) (flnk1->GetObject());
191 void AliGenCocktail::
192 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
194 // Iterator over generator pairs: Initialisation
195 flnk2 = flnk1 = fEntries->FirstLink();
197 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
203 void AliGenCocktail::
204 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
206 // Iterator over generators: Increment
207 flnk2 = flnk2->Next();
209 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
210 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
212 flnk2 = flnk1 = flnk1->Next();
214 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
215 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
223 AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
225 // Assignment operator