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 **************************************************************************/
20 #include "AliGenerator.h"
21 #include "AliGenCocktail.h"
23 #include <TDirectory.h>
27 ClassImp(AliGenCocktailEntry)
28 void AliGenCocktailEntry::PrintInfo()
30 printf("\n Generator: %s Generated Events: %d First: %d Last: %d",
31 (const char *) fName, fGenerator->NumberParticles(), fFirst, fLast);
34 ClassImp(AliGenCocktail)
36 AliGenCocktail::AliGenCocktail()
44 AliGenCocktail::~AliGenCocktail()
50 AddGenerator(AliGenerator *Generator, TString Name, Float_t RateExp)
53 // Forward parameters to the new generator
54 Generator->SetPtRange(fPtMin,fPtMax);
55 Generator->SetMomentumRange(fPMin,fPMax);
56 Generator->SetYRange(fYMin,fYMax);
58 SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
60 SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
62 SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
64 SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
65 Generator->SetVertexSmear(fVertexSmear);
66 Generator->SetTrackingFlag(fTrackIt);
68 // Add generator to list
69 AliGenCocktailEntry *Entry =
70 new AliGenCocktailEntry(Generator, Name, RateExp);
75 void AliGenCocktail::Init()
78 AliGenCocktailEntry *Entry;
80 // Loop over generators and initialize
81 while((Entry = (AliGenCocktailEntry*)next())) {
82 Entry->Generator()->Init();
86 void AliGenCocktail::Generate()
89 AliGenCocktailEntry *Entry;
90 AliGenCocktailEntry *e1;
91 AliGenCocktailEntry *e2;
92 TClonesArray *PartArray = gAlice->Particles();
94 // Loop over generators and generate events
96 while((Entry = (AliGenCocktailEntry*)next())) {
101 Entry->SetFirst((PartArray->GetEntriesFast())+1);
103 Entry->Generator()->Generate();
104 Entry->SetLast(PartArray->GetEntriesFast());
107 while((Entry = (AliGenCocktailEntry*)next())) {
110 for (Entry=FirstGenerator();
112 Entry=NextGenerator()
116 for (FirstGeneratorPair(e1,e2);
118 NextGeneratorPair(e1,e2)
120 printf("\n -----------------------------");
126 AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
128 flnk1 = fEntries->FirstLink();
130 return (AliGenCocktailEntry*) (flnk1->GetObject());
136 AliGenCocktailEntry* AliGenCocktail::NextGenerator()
138 flnk1 = flnk1->Next();
140 return (AliGenCocktailEntry*) (flnk1->GetObject());
146 void AliGenCocktail::
147 FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
149 flnk2 = flnk1 = fEntries->FirstLink();
151 e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
157 void AliGenCocktail::
158 NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2)
160 flnk2 = flnk2->Next();
162 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
163 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
165 flnk2 = flnk1 = flnk1->Next();
167 e1 = (AliGenCocktailEntry*) (flnk1->GetObject());
168 e2 = (AliGenCocktailEntry*) (flnk2->GetObject());
177 void AliGenCocktail::Streamer(TBuffer &R__b)
179 // Stream an object of class AliGenCocktail.
180 TIter next(fEntries);
181 AliGenCocktailEntry *Entry;
183 if (R__b.IsReading()) {
184 Version_t R__v = R__b.ReadVersion(); if (R__v) { }
185 AliGenerator::Streamer(R__b);
186 R__b >> fNGenerators;
188 // Stream generation related information
189 while((Entry = (AliGenCocktailEntry*)next())) {
190 Entry->Streamer(R__b);
193 R__b.WriteVersion(AliGenCocktail::IsA());
194 AliGenerator::Streamer(R__b);
195 R__b << fNGenerators;
197 // Stream generation related information
198 while((Entry = (AliGenCocktailEntry*)next())) {
199 Entry->Streamer(R__b);