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121a60bd | 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 | ||
e62c1aea | 24 | #include "Riostream.h" |
121a60bd | 25 | #include "AliITSReconstructor.h" |
00a7cc50 | 26 | #include "AliRun.h" |
121a60bd | 27 | #include "AliRunLoader.h" |
113c12f1 | 28 | #include "AliRawReader.h" |
00a7cc50 | 29 | #include "AliITSDetTypeRec.h" |
7d62fb64 | 30 | #include "AliITSLoader.h" |
e43c066c | 31 | #include "AliITStrackerMI.h" |
121a60bd | 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" | |
e62c1aea | 39 | #include "AliITSpidESD1.h" |
40 | #include "AliITSpidESD2.h" | |
023ae34b | 41 | #include "AliITSInitGeometry.h" |
121a60bd | 42 | |
43 | ClassImp(AliITSReconstructor) | |
44 | ||
e62c1aea | 45 | //___________________________________________________________________________ |
94631b2f | 46 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
47 | fItsPID(0) | |
48 | { | |
e62c1aea | 49 | // Default constructor |
e62c1aea | 50 | } |
51 | //___________________________________________________________________________ | |
52 | AliITSReconstructor::~AliITSReconstructor(){ | |
53 | // destructor | |
54 | delete fItsPID; | |
55 | } | |
56 | //______________________________________________________________________ | |
94631b2f | 57 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), |
58 | fItsPID(ob.fItsPID) | |
59 | { | |
e62c1aea | 60 | // Copy constructor |
e62c1aea | 61 | } |
62 | ||
63 | //______________________________________________________________________ | |
94631b2f | 64 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ |
e62c1aea | 65 | // Assignment operator |
94631b2f | 66 | this->~AliITSReconstructor(); |
67 | new(this) AliITSReconstructor(ob); | |
e62c1aea | 68 | return *this; |
69 | } | |
023ae34b | 70 | //______________________________________________________________________ |
94631b2f | 71 | void AliITSReconstructor::Init(AliRunLoader *runLoader) const{ |
023ae34b | 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. | |
00a7cc50 | 82 | |
108bd0fe | 83 | AliITSInitGeometry initgeom; |
84 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
85 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
023ae34b | 86 | AliITSLoader* loader = static_cast<AliITSLoader*> |
87 | (runLoader->GetLoader("ITSLoader")); | |
88 | if (!loader) { | |
89 | Error("Init", "ITS loader not found"); | |
90 | return; | |
91 | } | |
92 | loader->SetITSgeom(geom); | |
93 | return; | |
94 | } | |
121a60bd | 95 | //_____________________________________________________________________________ |
96 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
97 | { | |
98 | // reconstruct clusters | |
99 | ||
7d62fb64 | 100 | |
8e50d897 | 101 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
121a60bd | 102 | if (!loader) { |
103 | Error("Reconstruct", "ITS loader not found"); | |
104 | return; | |
105 | } | |
8e50d897 | 106 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 107 | rec->SetDefaults(); |
108 | ||
121a60bd | 109 | loader->LoadRecPoints("recreate"); |
110 | loader->LoadDigits("read"); | |
111 | runLoader->LoadKinematics(); | |
00a7cc50 | 112 | TString option = GetOption(); |
113 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
114 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
121a60bd | 115 | |
121a60bd | 116 | Int_t nEvents = runLoader->GetNumberOfEvents(); |
117 | ||
118 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
119 | runLoader->GetEvent(iEvent); | |
00a7cc50 | 120 | if(loader->TreeR()==0x0) loader->MakeTree("R"); |
121 | rec->MakeBranch("R"); | |
122 | rec->SetTreeAddress(); | |
123 | rec->DigitsToRecPoints(iEvent,0,"All",clusfinder); | |
121a60bd | 124 | } |
125 | ||
126 | loader->UnloadRecPoints(); | |
127 | loader->UnloadDigits(); | |
128 | runLoader->UnloadKinematics(); | |
129 | } | |
130 | ||
00a7cc50 | 131 | //_________________________________________________________________ |
132 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader, | |
133 | AliRawReader* rawReader) const | |
113c12f1 | 134 | { |
00a7cc50 | 135 | // reconstruct clusters |
113c12f1 | 136 | |
00a7cc50 | 137 | |
8e50d897 | 138 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
113c12f1 | 139 | if (!loader) { |
140 | Error("Reconstruct", "ITS loader not found"); | |
141 | return; | |
142 | } | |
00a7cc50 | 143 | |
8e50d897 | 144 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 145 | rec->SetDefaults(); |
146 | rec->SetDefaultClusterFindersV2(kTRUE); | |
113c12f1 | 147 | |
00a7cc50 | 148 | loader->LoadRecPoints("recreate"); |
113c12f1 | 149 | |
150 | Int_t iEvent = 0; | |
113c12f1 | 151 | |
00a7cc50 | 152 | while(rawReader->NextEvent()) { |
153 | runLoader->GetEvent(iEvent++); | |
154 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
155 | rec->DigitsToRecPoints(rawReader); | |
113c12f1 | 156 | } |
157 | ||
158 | loader->UnloadRecPoints(); | |
159 | } | |
160 | ||
121a60bd | 161 | //_____________________________________________________________________________ |
e62c1aea | 162 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const |
121a60bd | 163 | { |
164 | // create a ITS tracker | |
165 | ||
7d62fb64 | 166 | |
e43c066c | 167 | TString selectedTracker = GetOption(); |
e62c1aea | 168 | AliTracker* tracker; |
169 | if (selectedTracker.Contains("MI")) { | |
e341247d | 170 | tracker = new AliITStrackerMI(0); |
e62c1aea | 171 | } |
172 | else { | |
cc088660 | 173 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 174 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
175 | if(selectedTracker.Contains("onlyITS"))sat->SetSAFlag(kTRUE); | |
176 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
e62c1aea | 177 | } |
7d62fb64 | 178 | |
e62c1aea | 179 | TString selectedPIDmethod = GetOption(); |
180 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
181 | if (!loader) { | |
182 | Error("CreateTracker", "ITS loader not found"); | |
183 | } | |
184 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
185 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
186 | } | |
187 | else{ | |
188 | Double_t parITS[] = {34., 0.15, 10.}; | |
189 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); | |
190 | } | |
191 | return tracker; | |
7d62fb64 | 192 | |
121a60bd | 193 | } |
194 | ||
195 | //_____________________________________________________________________________ | |
196 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
197 | { | |
198 | // create a ITS vertexer | |
199 | ||
f4d5a8d1 | 200 | TString selectedVertexer = GetOption(); |
121a60bd | 201 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ |
202 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
203 | return new AliITSVertexerIons("null"); | |
204 | } | |
205 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
206 | Double_t smear[3]={0.005,0.005,0.01}; | |
207 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
208 | return new AliITSVertexerFast(smear); | |
209 | } | |
210 | if(selectedVertexer.Contains("ppz") || selectedVertexer.Contains("PPZ")){ | |
211 | Info("CreateVertexer","a AliITSVertexerPPZ object has been selected\n"); | |
212 | return new AliITSVertexerPPZ("null"); | |
213 | } | |
214 | // by default an AliITSVertexerZ object is instatiated | |
215 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
216 | return new AliITSVertexerZ("null"); | |
217 | } | |
218 | ||
219 | //_____________________________________________________________________________ | |
e62c1aea | 220 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, |
121a60bd | 221 | AliESD* esd) const |
222 | { | |
e62c1aea | 223 | // make PID, find V0s and cascade |
224 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
225 | AliITSpidESD *pidESD = 0; | |
226 | TString selectedPIDmethod = GetOption(); | |
227 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
149c4c59 | 228 | Info("FillESD","ITS LandauFitPID option has been selected\n"); |
e62c1aea | 229 | pidESD=loader->GetITSpid(); |
230 | } | |
231 | else{ | |
149c4c59 | 232 | Info("FillESD","ITS default PID\n"); |
e62c1aea | 233 | pidESD=loader->GetITSpid(); |
234 | } | |
235 | if(pidESD!=0){ | |
236 | pidESD->MakePID(esd); | |
237 | } | |
238 | else { | |
239 | Error("FillESD","!! cannot do the PID !!\n"); | |
240 | } | |
121a60bd | 241 | } |
242 | ||
243 | ||
244 | //_____________________________________________________________________________ | |
245 | AliITSgeom* AliITSReconstructor::GetITSgeom(AliRunLoader* runLoader) const | |
246 | { | |
247 | // get the ITS geometry | |
248 | ||
249 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
250 | if (!runLoader->GetAliRun()) { | |
251 | Error("GetITSgeom", "couldn't get AliRun object"); | |
252 | return NULL; | |
253 | } | |
8e50d897 | 254 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); |
255 | AliITSgeom* geom = (AliITSgeom*)loader->GetITSgeom(); | |
7d62fb64 | 256 | if(!geom){ |
257 | Error("GetITSgeom","no ITS geometry available"); | |
121a60bd | 258 | return NULL; |
259 | } | |
7d62fb64 | 260 | |
261 | return geom; | |
121a60bd | 262 | } |