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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 | ||
16 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // class for ITS reconstruction // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include "Riostream.h" | |
25 | #include "AliITSReconstructor.h" | |
26 | #include "AliRun.h" | |
27 | #include "AliRunLoader.h" | |
28 | #include "AliRawReader.h" | |
29 | #include "AliITSDetTypeRec.h" | |
30 | #include "AliITSLoader.h" | |
31 | #include "AliITStrackerMI.h" | |
32 | #include "AliITStrackerSA.h" | |
33 | #include "AliITSVertexerIons.h" | |
34 | #include "AliITSVertexerFast.h" | |
35 | #include "AliITSVertexerPPZ.h" | |
36 | #include "AliITSVertexerZ.h" | |
37 | #include "AliESD.h" | |
38 | #include "AliITSpidESD.h" | |
39 | #include "AliITSpidESD1.h" | |
40 | #include "AliITSpidESD2.h" | |
41 | #include "AliITSInitGeometry.h" | |
42 | ||
43 | ClassImp(AliITSReconstructor) | |
44 | ||
45 | //___________________________________________________________________________ | |
46 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), | |
47 | fItsPID(0) | |
48 | { | |
49 | // Default constructor | |
50 | } | |
51 | //___________________________________________________________________________ | |
52 | AliITSReconstructor::~AliITSReconstructor(){ | |
53 | // destructor | |
54 | delete fItsPID; | |
55 | } | |
56 | //______________________________________________________________________ | |
57 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), | |
58 | fItsPID(ob.fItsPID) | |
59 | { | |
60 | // Copy constructor | |
61 | } | |
62 | ||
63 | //______________________________________________________________________ | |
64 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ | |
65 | // Assignment operator | |
66 | this->~AliITSReconstructor(); | |
67 | new(this) AliITSReconstructor(ob); | |
68 | return *this; | |
69 | } | |
70 | //______________________________________________________________________ | |
71 | void AliITSReconstructor::Init(AliRunLoader *runLoader) const{ | |
72 | // Initalize this constructor bet getting/creating the objects | |
73 | // nesseary for a proper ITS reconstruction. | |
74 | // Inputs: | |
75 | // AliRunLoader *runLoader Pointer to the run loader to allow | |
76 | // the getting of files/folders data | |
77 | // needed to do reconstruction | |
78 | // Output: | |
79 | // none. | |
80 | // Return: | |
81 | // none. | |
82 | ||
83 | AliITSInitGeometry *initgeom = new AliITSInitGeometry("AliITSvPPRasymmFMD", | |
84 | 2); | |
85 | AliITSgeom *geom = initgeom->CreateAliITSgeom(); | |
86 | delete initgeom; // once created, do not need initgeom any more. | |
87 | AliITSLoader* loader = static_cast<AliITSLoader*> | |
88 | (runLoader->GetLoader("ITSLoader")); | |
89 | if (!loader) { | |
90 | Error("Init", "ITS loader not found"); | |
91 | return; | |
92 | } | |
93 | loader->SetITSgeom(geom); | |
94 | return; | |
95 | } | |
96 | //_____________________________________________________________________________ | |
97 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
98 | { | |
99 | // reconstruct clusters | |
100 | ||
101 | ||
102 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); | |
103 | if (!loader) { | |
104 | Error("Reconstruct", "ITS loader not found"); | |
105 | return; | |
106 | } | |
107 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); | |
108 | rec->SetDefaults(); | |
109 | ||
110 | loader->LoadRecPoints("recreate"); | |
111 | loader->LoadDigits("read"); | |
112 | runLoader->LoadKinematics(); | |
113 | TString option = GetOption(); | |
114 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
115 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
116 | ||
117 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
118 | ||
119 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
120 | runLoader->GetEvent(iEvent); | |
121 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
122 | rec->MakeBranch("R"); | |
123 | rec->SetTreeAddress(); | |
124 | rec->DigitsToRecPoints(iEvent,0,"All",clusfinder); | |
125 | } | |
126 | ||
127 | loader->UnloadRecPoints(); | |
128 | loader->UnloadDigits(); | |
129 | runLoader->UnloadKinematics(); | |
130 | } | |
131 | ||
132 | //_________________________________________________________________ | |
133 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader, | |
134 | AliRawReader* rawReader) const | |
135 | { | |
136 | // reconstruct clusters | |
137 | ||
138 | ||
139 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); | |
140 | if (!loader) { | |
141 | Error("Reconstruct", "ITS loader not found"); | |
142 | return; | |
143 | } | |
144 | ||
145 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); | |
146 | rec->SetDefaults(); | |
147 | rec->SetDefaultClusterFindersV2(kTRUE); | |
148 | ||
149 | loader->LoadRecPoints("recreate"); | |
150 | ||
151 | Int_t iEvent = 0; | |
152 | ||
153 | while(rawReader->NextEvent()) { | |
154 | runLoader->GetEvent(iEvent++); | |
155 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
156 | rec->DigitsToRecPoints(rawReader); | |
157 | } | |
158 | ||
159 | loader->UnloadRecPoints(); | |
160 | } | |
161 | ||
162 | //_____________________________________________________________________________ | |
163 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const | |
164 | { | |
165 | // create a ITS tracker | |
166 | ||
167 | ||
168 | AliITSgeom* geom = GetITSgeom(runLoader); | |
169 | TString selectedTracker = GetOption(); | |
170 | AliTracker* tracker; | |
171 | if (selectedTracker.Contains("MI")) { | |
172 | tracker = new AliITStrackerMI(geom); | |
173 | } | |
174 | else { | |
175 | tracker = new AliITStrackerSA(geom); // inherits from AliITStrackerMI | |
176 | } | |
177 | ||
178 | TString selectedPIDmethod = GetOption(); | |
179 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
180 | if (!loader) { | |
181 | Error("CreateTracker", "ITS loader not found"); | |
182 | } | |
183 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
184 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
185 | } | |
186 | else{ | |
187 | Double_t parITS[] = {34., 0.15, 10.}; | |
188 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); | |
189 | } | |
190 | return tracker; | |
191 | ||
192 | } | |
193 | ||
194 | //_____________________________________________________________________________ | |
195 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
196 | { | |
197 | // create a ITS vertexer | |
198 | ||
199 | TString selectedVertexer = GetOption(); | |
200 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ | |
201 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
202 | return new AliITSVertexerIons("null"); | |
203 | } | |
204 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
205 | Double_t smear[3]={0.005,0.005,0.01}; | |
206 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
207 | return new AliITSVertexerFast(smear); | |
208 | } | |
209 | if(selectedVertexer.Contains("ppz") || selectedVertexer.Contains("PPZ")){ | |
210 | Info("CreateVertexer","a AliITSVertexerPPZ object has been selected\n"); | |
211 | return new AliITSVertexerPPZ("null"); | |
212 | } | |
213 | // by default an AliITSVertexerZ object is instatiated | |
214 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
215 | return new AliITSVertexerZ("null"); | |
216 | } | |
217 | ||
218 | //_____________________________________________________________________________ | |
219 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, | |
220 | AliESD* esd) const | |
221 | { | |
222 | // make PID, find V0s and cascade | |
223 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
224 | AliITSpidESD *pidESD = 0; | |
225 | TString selectedPIDmethod = GetOption(); | |
226 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
227 | Info("FillESD","ITS LandauFitPID option has been selected\n"); | |
228 | pidESD=loader->GetITSpid(); | |
229 | } | |
230 | else{ | |
231 | Info("FillESD","ITS default PID\n"); | |
232 | pidESD=loader->GetITSpid(); | |
233 | } | |
234 | if(pidESD!=0){ | |
235 | pidESD->MakePID(esd); | |
236 | } | |
237 | else { | |
238 | Error("FillESD","!! cannot do the PID !!\n"); | |
239 | } | |
240 | } | |
241 | ||
242 | ||
243 | //_____________________________________________________________________________ | |
244 | AliITSgeom* AliITSReconstructor::GetITSgeom(AliRunLoader* runLoader) const | |
245 | { | |
246 | // get the ITS geometry | |
247 | ||
248 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
249 | if (!runLoader->GetAliRun()) { | |
250 | Error("GetITSgeom", "couldn't get AliRun object"); | |
251 | return NULL; | |
252 | } | |
253 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
254 | AliITSgeom* geom = (AliITSgeom*)loader->GetITSgeom(); | |
255 | if(!geom){ | |
256 | Error("GetITSgeom","no ITS geometry available"); | |
257 | return NULL; | |
258 | } | |
259 | ||
260 | return geom; | |
261 | } |