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" |
fe4da5cc |
33 | |
34 | ClassImp(AliGenCocktail) |
35 | |
36 | AliGenCocktail::AliGenCocktail() |
37 | :AliGenerator() |
38 | { |
374924b5 |
39 | // Constructor |
8b31bfac |
40 | fName = "Cocktail"; |
41 | fTitle= "Particle Generator using cocktail of generators"; |
fe4da5cc |
42 | fEntries = new TList; |
2685bf00 |
43 | flnk1 = 0; |
44 | flnk2 = 0; |
fe4da5cc |
45 | fNGenerators=0; |
46 | } |
47 | |
374924b5 |
48 | AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail) |
49 | { |
50 | // copy constructor |
51 | } |
fe4da5cc |
52 | |
53 | AliGenCocktail::~AliGenCocktail() |
54 | { |
374924b5 |
55 | // Destructor |
fe4da5cc |
56 | delete fEntries; |
57 | } |
58 | |
59 | void AliGenCocktail:: |
a436e7fc |
60 | AddGenerator(AliGenerator *Generator, char* Name, Float_t RateExp) |
fe4da5cc |
61 | { |
62 | // |
63 | // Forward parameters to the new generator |
212bcf04 |
64 | if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange))) |
65 | Generator->SetPtRange(fPtMin,fPtMax); |
66 | if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange))) |
67 | Generator->SetMomentumRange(fPMin,fPMax); |
68 | |
69 | if (!(Generator->TestBit(kYRange))) |
70 | Generator->SetYRange(fYMin,fYMax); |
71 | if (!(Generator->TestBit(kPhiRange))) |
72 | Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi()); |
73 | if (!(Generator->TestBit(kThetaRange))) |
74 | Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi()); |
75 | if (!(Generator->TestBit(kVertexRange))) |
76 | Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]); |
c8f7f6f9 |
77 | |
78 | Generator->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]); |
7a50a130 |
79 | Generator->SetVertexSmear(fVertexSmear); |
c8f7f6f9 |
80 | Generator->SetVertexSource(kContainer); |
81 | Generator->SetTrackingFlag(fTrackIt); |
fe4da5cc |
82 | // |
83 | // Add generator to list |
a436e7fc |
84 | |
374924b5 |
85 | AliGenCocktailEntry *entry = |
fe4da5cc |
86 | new AliGenCocktailEntry(Generator, Name, RateExp); |
374924b5 |
87 | fEntries->Add(entry); |
fe4da5cc |
88 | fNGenerators++; |
89 | } |
90 | |
91 | void AliGenCocktail::Init() |
374924b5 |
92 | { |
93 | // Initialisation |
94 | TIter next(fEntries); |
95 | AliGenCocktailEntry *entry; |
96 | // |
97 | // Loop over generators and initialize |
98 | while((entry = (AliGenCocktailEntry*)next())) { |
99 | entry->Generator()->Init(); |
100 | } |
101 | } |
fe4da5cc |
102 | |
09e2e187 |
103 | void AliGenCocktail::FinishRun() |
104 | { |
105 | // Initialisation |
106 | TIter next(fEntries); |
107 | AliGenCocktailEntry *entry; |
108 | // |
109 | // Loop over generators and initialize |
110 | while((entry = (AliGenCocktailEntry*)next())) { |
111 | entry->Generator()->FinishRun(); |
112 | } |
113 | } |
114 | |
fe4da5cc |
115 | void AliGenCocktail::Generate() |
374924b5 |
116 | { |
117 | // |
118 | // Generate event |
119 | TIter next(fEntries); |
a8408367 |
120 | AliGenCocktailEntry *entry = 0; |
121 | AliGenCocktailEntry *preventry = 0; |
122 | AliGenerator* gen = 0; |
09e2e187 |
123 | |
2ab0c725 |
124 | TObjArray *partArray = gAlice->Particles(); |
c8f7f6f9 |
125 | |
126 | // |
127 | // Generate the vertex position used by all generators |
128 | // |
129 | if(fVertexSmear == kPerEvent) Vertex(); |
130 | |
131 | |
132 | // |
374924b5 |
133 | // Loop over generators and generate events |
134 | Int_t igen=0; |
a8408367 |
135 | |
374924b5 |
136 | while((entry = (AliGenCocktailEntry*)next())) { |
137 | igen++; |
138 | if (igen ==1) { |
139 | entry->SetFirst(0); |
140 | } else { |
141 | entry->SetFirst((partArray->GetEntriesFast())+1); |
142 | } |
a8408367 |
143 | // |
144 | // Handle case in which current generator needs collision geometry from previous generator |
145 | // |
146 | gen = entry->Generator(); |
147 | if (gen->NeedsCollisionGeometry()) |
148 | { |
149 | if (preventry && preventry->Generator()->ProvidesCollisionGeometry()) |
150 | { |
151 | gen->SetCollisionGeometry(preventry->Generator()->CollisionGeometry()); |
152 | } else { |
153 | Fatal("Generate()", "No Collision Geometry Provided"); |
154 | } |
155 | } |
c8f7f6f9 |
156 | entry->Generator()->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2)); |
374924b5 |
157 | entry->Generator()->Generate(); |
158 | entry->SetLast(partArray->GetEntriesFast()); |
a8408367 |
159 | preventry = entry; |
374924b5 |
160 | } |
161 | next.Reset(); |
374924b5 |
162 | } |
fe4da5cc |
163 | |
164 | AliGenCocktailEntry * AliGenCocktail::FirstGenerator() |
165 | { |
374924b5 |
166 | // Iterator over generators: Initialisation |
fe4da5cc |
167 | flnk1 = fEntries->FirstLink(); |
168 | if (flnk1) { |
169 | return (AliGenCocktailEntry*) (flnk1->GetObject()); |
170 | } else { |
171 | return 0; |
172 | } |
173 | } |
174 | |
175 | AliGenCocktailEntry* AliGenCocktail::NextGenerator() |
176 | { |
374924b5 |
177 | // Iterator over generators: Increment |
fe4da5cc |
178 | flnk1 = flnk1->Next(); |
179 | if (flnk1) { |
180 | return (AliGenCocktailEntry*) (flnk1->GetObject()); |
181 | } else { |
182 | return 0; |
183 | } |
184 | } |
185 | |
186 | void AliGenCocktail:: |
187 | FirstGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2) |
188 | { |
374924b5 |
189 | // Iterator over generator pairs: Initialisation |
fe4da5cc |
190 | flnk2 = flnk1 = fEntries->FirstLink(); |
191 | if (flnk1) { |
192 | e2 = e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); |
193 | } else { |
194 | e2= e1 = 0; |
195 | } |
196 | } |
197 | |
198 | void AliGenCocktail:: |
199 | NextGeneratorPair(AliGenCocktailEntry*& e1, AliGenCocktailEntry*& e2) |
200 | { |
374924b5 |
201 | // Iterator over generators: Increment |
fe4da5cc |
202 | flnk2 = flnk2->Next(); |
203 | if (flnk2) { |
204 | e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); |
205 | e2 = (AliGenCocktailEntry*) (flnk2->GetObject()); |
206 | } else { |
207 | flnk2 = flnk1 = flnk1->Next(); |
208 | if (flnk1) { |
209 | e1 = (AliGenCocktailEntry*) (flnk1->GetObject()); |
210 | e2 = (AliGenCocktailEntry*) (flnk2->GetObject()); |
211 | } else { |
212 | e1=0; |
213 | e2=0; |
214 | } |
215 | } |
216 | } |
217 | |
374924b5 |
218 | AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs) |
219 | { |
220 | // Assignment operator |
221 | return *this; |
fe4da5cc |
222 | } |
223 | |
224 | |