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 1.9 2000/12/21 16:24:06 morsch
19 Coding convention clean-up
21 Revision 1.8 2000/10/27 13:53:29 morsch
22 AddGenerator: check testbit before setting the pT and momentum range
25 Revision 1.7 2000/10/02 15:15:41 morsch
26 Use default streamer for AliGenCocktail
28 Revision 1.6 2000/09/07 17:04:31 morsch
29 In Streamer: TIter() after R__b << fEntries (Dmitri Yurevitch Peressounko)
31 Revision 1.5 2000/06/09 20:28:51 morsch
32 All coding rule violations except RS3 corrected (AM)
34 Revision 1.4 1999/09/29 09:24:12 fca
35 Introduction of the Copyright and cvs Log
39 // Container class for AliGenerator through recursion.
40 // Container is itself an AliGenerator.
41 // What is stored are not the pointers to the generators directly but to objects of type
42 // AliGenCocktail entry.
43 // The class provides also iterator functionality.
44 // Author: andreas.morsch@cern.ch
47 #include "AliGenCocktail.h"
48 #include "AliGenCocktailEntry.h"
52 ClassImp(AliGenCocktail)
54 AliGenCocktail::AliGenCocktail()
62 AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail)
67 AliGenCocktail::~AliGenCocktail()
74 AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp)
77 // Forward parameters to the new generator
79 Generator->SetPtRange(fPtMin,fPtMax);
80 if(TestBit(kMomentumRange))
81 Generator->SetMomentumRange(fPMin,fPMax);
83 Generator->SetYRange(fYMin,fYMax);
85 SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
87 SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
89 SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
91 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
92 Generator->SetVertexSmear(fVertexSmear);
93 Generator->SetTrackingFlag(fTrackIt);
95 // Add generator to list
97 AliGenCocktailEntry *entry =
98 new AliGenCocktailEntry(Generator, Name, RateExp);
103 void AliGenCocktail::Init()
106 TIter next(fEntries);
107 AliGenCocktailEntry *entry;
109 // Loop over generators and initialize
110 while((entry = (AliGenCocktailEntry*)next())) {
111 entry->Generator()->Init();
115 void AliGenCocktail::Generate()
119 TIter next(fEntries);
120 AliGenCocktailEntry *entry;
121 AliGenCocktailEntry *e1;
122 AliGenCocktailEntry *e2;
123 TObjArray *partArray = gAlice->Particles();
125 // Loop over generators and generate events
127 while((entry = (AliGenCocktailEntry*)next())) {
132 entry->SetFirst((partArray->GetEntriesFast())+1);
134 entry->Generator()->Generate();
135 entry->SetLast(partArray->GetEntriesFast());
138 while((entry = (AliGenCocktailEntry*)next())) {
141 for (entry=FirstGenerator();
143 entry=NextGenerator()
147 for (FirstGeneratorPair(e1,e2);
149 NextGeneratorPair(e1,e2)
151 printf("\n -----------------------------");
157 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
159 // Iterator over generators: Initialisation
160 flnk1 = fEntries->FirstLink();
162 return (AliGenCocktailEntry*) (flnk1->GetObject());
168 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
170 // Iterator over generators: Increment
171 flnk1 = flnk1->Next();
173 return (AliGenCocktailEntry*) (flnk1->GetObject());
179 void AliGenCocktail::
180 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
182 // Iterator over generator pairs: Initialisation
183 flnk2 = flnk1 = fEntries->FirstLink();
185 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
191 void AliGenCocktail::
192 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
194 // Iterator over generators: Increment
195 flnk2 = flnk2->Next();
197 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
198 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
200 flnk2 = flnk1 = flnk1->Next();
202 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
203 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
212 void AliGenCocktail::Streamer(TBuffer &R__b)
214 // Stream an object of class AliGenCocktail.
216 AliGenCocktailEntry *entry;
218 if (R__b.IsReading()) {
219 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
220 AliGenerator::Streamer(R__b);
221 R__b >> fNGenerators;
223 TIter next(fEntries);
224 // Stream generation related information
225 while((entry = (AliGenCocktailEntry*)next())) {
226 entry->Streamer(R__b);
229 R__b.WriteVersion(AliGenCocktail::IsA());
230 AliGenerator::Streamer(R__b);
231 R__b << fNGenerators;
233 TIter next(fEntries);
234 // Stream generation related information
235 while((entry = (AliGenCocktailEntry*)next())) {
236 entry->Streamer(R__b);
242 AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
244 // Assignment operator