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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
4c039060 | 17 | |
675e9664 | 18 | // Container class for AliGenerator through recursion. |
19 | // Container is itself an AliGenerator. | |
20 | // What is stored are not the pointers to the generators directly but to objects of type | |
21 | // AliGenCocktail entry. | |
22 | // The class provides also iterator functionality. | |
23 | // Author: andreas.morsch@cern.ch | |
24 | // | |
25 | ||
116cbefd | 26 | #include <TList.h> |
27 | #include <TObjArray.h> | |
28 | ||
fe4da5cc | 29 | #include "AliGenCocktail.h" |
374924b5 | 30 | #include "AliGenCocktailEntry.h" |
09e2e187 | 31 | #include "AliCollisionGeometry.h" |
fe4da5cc | 32 | #include "AliRun.h" |
5d12ce38 | 33 | #include "AliMC.h" |
fe4da5cc | 34 | |
35 | ClassImp(AliGenCocktail) | |
36 | ||
37 | AliGenCocktail::AliGenCocktail() | |
38 | :AliGenerator() | |
39 | { | |
374924b5 | 40 | // Constructor |
8b31bfac | 41 | fName = "Cocktail"; |
42 | fTitle= "Particle Generator using cocktail of generators"; | |
2685bf00 | 43 | flnk1 = 0; |
44 | flnk2 = 0; | |
fe4da5cc | 45 | fNGenerators=0; |
b1403e15 | 46 | fEntries = 0; |
47 | ||
fe4da5cc | 48 | } |
49 | ||
198bb1c7 | 50 | AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail): |
51 | AliGenerator(cocktail) | |
374924b5 | 52 | { |
198bb1c7 | 53 | // Copy constructor |
54 | cocktail.Copy(*this); | |
374924b5 | 55 | } |
fe4da5cc | 56 | |
57 | AliGenCocktail::~AliGenCocktail() | |
58 | { | |
374924b5 | 59 | // Destructor |
fe4da5cc | 60 | delete fEntries; |
61 | } | |
62 | ||
63 | void AliGenCocktail:: | |
a436e7fc | 64 | AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp) |
fe4da5cc | 65 | { |
b1403e15 | 66 | // |
67 | // Add a generator to the list | |
68 | // First check that list exists | |
69 | if (!fEntries) fEntries = new TList(); | |
70 | ||
fe4da5cc | 71 | // |
72 | // Forward parameters to the new generator | |
212bcf04 | 73 | if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange))) |
74 | Generator->SetPtRange(fPtMin,fPtMax); | |
75 | if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange))) | |
76 | Generator->SetMomentumRange(fPMin,fPMax); | |
77 | ||
78 | if (!(Generator->TestBit(kYRange))) | |
79 | Generator->SetYRange(fYMin,fYMax); | |
80 | if (!(Generator->TestBit(kPhiRange))) | |
81 | Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi()); | |
82 | if (!(Generator->TestBit(kThetaRange))) | |
83 | Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi()); | |
84 | if (!(Generator->TestBit(kVertexRange))) | |
85 | Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]); | |
c8f7f6f9 | 86 | |
87 | Generator->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]); | |
7a50a130 | 88 | Generator->SetVertexSmear(fVertexSmear); |
c8f7f6f9 | 89 | Generator->SetVertexSource(kContainer); |
90 | Generator->SetTrackingFlag(fTrackIt); | |
fe4da5cc | 91 | // |
92 | // Add generator to list | |
c5c3e4b0 | 93 | char theName[256]; |
94 | sprintf(theName, "%s_%d",Name, fNGenerators); | |
95 | Generator->SetName(theName); | |
96 | ||
374924b5 | 97 | AliGenCocktailEntry *entry = |
fe4da5cc | 98 | new AliGenCocktailEntry(Generator, Name, RateExp); |
c5c3e4b0 | 99 | |
374924b5 | 100 | fEntries->Add(entry); |
fe4da5cc | 101 | fNGenerators++; |
102 | } | |
103 | ||
104 | void AliGenCocktail::Init() | |
374924b5 | 105 | { |
106 | // Initialisation | |
107 | TIter next(fEntries); | |
108 | AliGenCocktailEntry *entry; | |
109 | // | |
110 | // Loop over generators and initialize | |
111 | while((entry = (AliGenCocktailEntry*)next())) { | |
112 | entry->Generator()->Init(); | |
113 | } | |
114 | } | |
fe4da5cc | 115 | |
09e2e187 | 116 | void AliGenCocktail::FinishRun() |
117 | { | |
118 | // Initialisation | |
119 | TIter next(fEntries); | |
120 | AliGenCocktailEntry *entry; | |
121 | // | |
122 | // Loop over generators and initialize | |
123 | while((entry = (AliGenCocktailEntry*)next())) { | |
124 | entry->Generator()->FinishRun(); | |
125 | } | |
126 | } | |
127 | ||
fe4da5cc | 128 | void AliGenCocktail::Generate() |
374924b5 | 129 | { |
130 | // | |
131 | // Generate event | |
132 | TIter next(fEntries); | |
a8408367 | 133 | AliGenCocktailEntry *entry = 0; |
134 | AliGenCocktailEntry *preventry = 0; | |
135 | AliGenerator* gen = 0; | |
09e2e187 | 136 | |
5d12ce38 | 137 | TObjArray *partArray = gAlice->GetMCApp()->Particles(); |
c8f7f6f9 | 138 | |
139 | // | |
140 | // Generate the vertex position used by all generators | |
141 | // | |
142 | if(fVertexSmear == kPerEvent) Vertex(); | |
143 | ||
144 | ||
145 | // | |
374924b5 | 146 | // Loop over generators and generate events |
147 | Int_t igen=0; | |
a8408367 | 148 | |
374924b5 | 149 | while((entry = (AliGenCocktailEntry*)next())) { |
150 | igen++; | |
151 | if (igen ==1) { | |
152 | entry->SetFirst(0); | |
153 | } else { | |
154 | entry->SetFirst((partArray->GetEntriesFast())+1); | |
155 | } | |
a8408367 | 156 | // |
157 | // Handle case in which current generator needs collision geometry from previous generator | |
158 | // | |
159 | gen = entry->Generator(); | |
160 | if (gen->NeedsCollisionGeometry()) | |
161 | { | |
162 | if (preventry && preventry->Generator()->ProvidesCollisionGeometry()) | |
163 | { | |
164 | gen->SetCollisionGeometry(preventry->Generator()->CollisionGeometry()); | |
165 | } else { | |
166 | Fatal("Generate()", "No Collision Geometry Provided"); | |
167 | } | |
168 | } | |
c8f7f6f9 | 169 | entry->Generator()->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2)); |
374924b5 | 170 | entry->Generator()->Generate(); |
171 | entry->SetLast(partArray->GetEntriesFast()); | |
a8408367 | 172 | preventry = entry; |
374924b5 | 173 | } |
174 | next.Reset(); | |
374924b5 | 175 | } |
fe4da5cc | 176 | |
177 | AliGenCocktailEntry * AliGenCocktail::FirstGenerator() | |
178 | { | |
374924b5 | 179 | // Iterator over generators: Initialisation |
fe4da5cc | 180 | flnk1 = fEntries->FirstLink(); |
181 | if (flnk1) { | |
182 | return (AliGenCocktailEntry*) (flnk1->GetObject()); | |
183 | } else { | |
184 | return 0; | |
185 | } | |
186 | } | |
187 | ||
188 | AliGenCocktailEntry* AliGenCocktail::NextGenerator() | |
189 | { | |
374924b5 | 190 | // Iterator over generators: Increment |
fe4da5cc | 191 | flnk1 = flnk1->Next(); |
192 | if (flnk1) { | |
193 | return (AliGenCocktailEntry*) (flnk1->GetObject()); | |
194 | } else { | |
195 | return 0; | |
196 | } | |
197 | } | |
198 | ||
199 | void AliGenCocktail:: | |
200 | FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2) | |
201 | { | |
374924b5 | 202 | // Iterator over generator pairs: Initialisation |
fe4da5cc | 203 | flnk2 = flnk1 = fEntries->FirstLink(); |
204 | if (flnk1) { | |
205 | e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); | |
206 | } else { | |
207 | e2= e1 = 0; | |
208 | } | |
209 | } | |
210 | ||
211 | void AliGenCocktail:: | |
212 | NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2) | |
213 | { | |
374924b5 | 214 | // Iterator over generators: Increment |
fe4da5cc | 215 | flnk2 = flnk2->Next(); |
216 | if (flnk2) { | |
217 | e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); | |
218 | e2 = (AliGenCocktailEntry*) (flnk2->GetObject()); | |
219 | } else { | |
220 | flnk2 = flnk1 = flnk1->Next(); | |
221 | if (flnk1) { | |
222 | e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); | |
223 | e2 = (AliGenCocktailEntry*) (flnk2->GetObject()); | |
224 | } else { | |
225 | e1=0; | |
226 | e2=0; | |
227 | } | |
228 | } | |
229 | } | |
230 | ||
374924b5 | 231 | AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs) |
232 | { | |
233 | // Assignment operator | |
198bb1c7 | 234 | rhs.Copy(*this); |
235 | return (*this); | |
fe4da5cc | 236 | } |
237 | ||
dc1d768c | 238 | void AliGenCocktail::Copy(TObject &) const |
198bb1c7 | 239 | { |
240 | Fatal("Copy","Not implemented!\n"); | |
241 | } | |
242 | ||
243 | ||
fe4da5cc | 244 |