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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" |
c0342e67 | 32 | #include "AliITStrackerV2.h" |
121a60bd | 33 | #include "AliITStrackerSA.h" |
34 | #include "AliITSVertexerIons.h" | |
35 | #include "AliITSVertexerFast.h" | |
3acc14d5 | 36 | #include "AliITSVertexer3D.h" |
121a60bd | 37 | #include "AliITSVertexerZ.h" |
3acc14d5 | 38 | #include "AliITSVertexerCosmics.h" |
af885e0f | 39 | #include "AliESDEvent.h" |
121a60bd | 40 | #include "AliITSpidESD.h" |
e62c1aea | 41 | #include "AliITSpidESD1.h" |
42 | #include "AliITSpidESD2.h" | |
023ae34b | 43 | #include "AliITSInitGeometry.h" |
121a60bd | 44 | |
44347160 | 45 | |
121a60bd | 46 | ClassImp(AliITSReconstructor) |
47 | ||
44347160 | 48 | AliITSRecoParam *AliITSReconstructor::fgkRecoParam =0; // reconstruction parameters |
49 | ||
e62c1aea | 50 | //___________________________________________________________________________ |
94631b2f | 51 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
52 | fItsPID(0) | |
53 | { | |
e62c1aea | 54 | // Default constructor |
44347160 | 55 | if (!fgkRecoParam) { |
56 | AliError("The Reconstruction parameters nonitialized - Used default one"); | |
57 | fgkRecoParam = AliITSRecoParam::GetHighFluxParam(); | |
58 | } | |
e62c1aea | 59 | } |
60 | //___________________________________________________________________________ | |
61 | AliITSReconstructor::~AliITSReconstructor(){ | |
62 | // destructor | |
63 | delete fItsPID; | |
44347160 | 64 | if(fgkRecoParam) delete fgkRecoParam; |
e62c1aea | 65 | } |
66 | //______________________________________________________________________ | |
94631b2f | 67 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), |
44347160 | 68 | fItsPID(ob.fItsPID) |
94631b2f | 69 | { |
e62c1aea | 70 | // Copy constructor |
e62c1aea | 71 | } |
72 | ||
73 | //______________________________________________________________________ | |
94631b2f | 74 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ |
e62c1aea | 75 | // Assignment operator |
94631b2f | 76 | this->~AliITSReconstructor(); |
77 | new(this) AliITSReconstructor(ob); | |
e62c1aea | 78 | return *this; |
79 | } | |
023ae34b | 80 | //______________________________________________________________________ |
94631b2f | 81 | void AliITSReconstructor::Init(AliRunLoader *runLoader) const{ |
023ae34b | 82 | // Initalize this constructor bet getting/creating the objects |
83 | // nesseary for a proper ITS reconstruction. | |
84 | // Inputs: | |
85 | // AliRunLoader *runLoader Pointer to the run loader to allow | |
86 | // the getting of files/folders data | |
87 | // needed to do reconstruction | |
88 | // Output: | |
89 | // none. | |
90 | // Return: | |
91 | // none. | |
00a7cc50 | 92 | |
108bd0fe | 93 | AliITSInitGeometry initgeom; |
94 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
95 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
023ae34b | 96 | AliITSLoader* loader = static_cast<AliITSLoader*> |
97 | (runLoader->GetLoader("ITSLoader")); | |
98 | if (!loader) { | |
99 | Error("Init", "ITS loader not found"); | |
100 | return; | |
101 | } | |
102 | loader->SetITSgeom(geom); | |
103 | return; | |
104 | } | |
121a60bd | 105 | //_____________________________________________________________________________ |
106 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
107 | { | |
108 | // reconstruct clusters | |
109 | ||
7d62fb64 | 110 | |
8e50d897 | 111 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
121a60bd | 112 | if (!loader) { |
113 | Error("Reconstruct", "ITS loader not found"); | |
114 | return; | |
115 | } | |
8e50d897 | 116 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 117 | rec->SetDefaults(); |
118 | ||
121a60bd | 119 | loader->LoadRecPoints("recreate"); |
120 | loader->LoadDigits("read"); | |
121 | runLoader->LoadKinematics(); | |
00a7cc50 | 122 | TString option = GetOption(); |
123 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
124 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
121a60bd | 125 | |
121a60bd | 126 | Int_t nEvents = runLoader->GetNumberOfEvents(); |
127 | ||
128 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
129 | runLoader->GetEvent(iEvent); | |
00a7cc50 | 130 | if(loader->TreeR()==0x0) loader->MakeTree("R"); |
131 | rec->MakeBranch("R"); | |
132 | rec->SetTreeAddress(); | |
133 | rec->DigitsToRecPoints(iEvent,0,"All",clusfinder); | |
121a60bd | 134 | } |
135 | ||
136 | loader->UnloadRecPoints(); | |
137 | loader->UnloadDigits(); | |
138 | runLoader->UnloadKinematics(); | |
139 | } | |
140 | ||
00a7cc50 | 141 | //_________________________________________________________________ |
142 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader, | |
143 | AliRawReader* rawReader) const | |
113c12f1 | 144 | { |
00a7cc50 | 145 | // reconstruct clusters |
113c12f1 | 146 | |
00a7cc50 | 147 | |
8e50d897 | 148 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
113c12f1 | 149 | if (!loader) { |
150 | Error("Reconstruct", "ITS loader not found"); | |
151 | return; | |
152 | } | |
00a7cc50 | 153 | |
8e50d897 | 154 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 155 | rec->SetDefaults(); |
156 | rec->SetDefaultClusterFindersV2(kTRUE); | |
113c12f1 | 157 | |
00a7cc50 | 158 | loader->LoadRecPoints("recreate"); |
113c12f1 | 159 | |
160 | Int_t iEvent = 0; | |
113c12f1 | 161 | |
00a7cc50 | 162 | while(rawReader->NextEvent()) { |
163 | runLoader->GetEvent(iEvent++); | |
164 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
165 | rec->DigitsToRecPoints(rawReader); | |
113c12f1 | 166 | } |
167 | ||
168 | loader->UnloadRecPoints(); | |
169 | } | |
170 | ||
121a60bd | 171 | //_____________________________________________________________________________ |
e62c1aea | 172 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const |
121a60bd | 173 | { |
174 | // create a ITS tracker | |
175 | ||
7d62fb64 | 176 | |
e43c066c | 177 | TString selectedTracker = GetOption(); |
e62c1aea | 178 | AliTracker* tracker; |
179 | if (selectedTracker.Contains("MI")) { | |
e341247d | 180 | tracker = new AliITStrackerMI(0); |
c0342e67 | 181 | } |
182 | else if (selectedTracker.Contains("V2")) { | |
183 | tracker = new AliITStrackerV2(0); | |
e62c1aea | 184 | } |
185 | else { | |
cc088660 | 186 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 187 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
188 | if(selectedTracker.Contains("onlyITS"))sat->SetSAFlag(kTRUE); | |
189 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
e62c1aea | 190 | } |
7d62fb64 | 191 | |
e62c1aea | 192 | TString selectedPIDmethod = GetOption(); |
193 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
194 | if (!loader) { | |
195 | Error("CreateTracker", "ITS loader not found"); | |
196 | } | |
197 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
198 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
199 | } | |
200 | else{ | |
25fee9b6 | 201 | Double_t parITS[] = {0.15, 10.}; //PH positions of the MIP peak |
e62c1aea | 202 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); |
203 | } | |
204 | return tracker; | |
7d62fb64 | 205 | |
121a60bd | 206 | } |
207 | ||
208 | //_____________________________________________________________________________ | |
209 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
210 | { | |
211 | // create a ITS vertexer | |
212 | ||
f4d5a8d1 | 213 | TString selectedVertexer = GetOption(); |
121a60bd | 214 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ |
215 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
216 | return new AliITSVertexerIons("null"); | |
217 | } | |
218 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
219 | Double_t smear[3]={0.005,0.005,0.01}; | |
220 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
221 | return new AliITSVertexerFast(smear); | |
222 | } | |
3acc14d5 | 223 | if(selectedVertexer.Contains("3d") || selectedVertexer.Contains("3D")){ |
224 | Info("CreateVertexer","a AliITSVertexer3D object has been selected\n"); | |
225 | return new AliITSVertexer3D("null"); | |
226 | } | |
227 | if(selectedVertexer.Contains("cosmics") || selectedVertexer.Contains("COSMICS")){ | |
228 | Info("CreateVertexer","a AliITSVertexerCosmics object has been selected\n"); | |
229 | return new AliITSVertexerCosmics(); | |
121a60bd | 230 | } |
231 | // by default an AliITSVertexerZ object is instatiated | |
232 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
233 | return new AliITSVertexerZ("null"); | |
234 | } | |
235 | ||
236 | //_____________________________________________________________________________ | |
e62c1aea | 237 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, |
af885e0f | 238 | AliESDEvent* esd) const |
121a60bd | 239 | { |
e62c1aea | 240 | // make PID, find V0s and cascade |
241 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
242 | AliITSpidESD *pidESD = 0; | |
243 | TString selectedPIDmethod = GetOption(); | |
244 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
149c4c59 | 245 | Info("FillESD","ITS LandauFitPID option has been selected\n"); |
e62c1aea | 246 | pidESD=loader->GetITSpid(); |
247 | } | |
248 | else{ | |
149c4c59 | 249 | Info("FillESD","ITS default PID\n"); |
e62c1aea | 250 | pidESD=loader->GetITSpid(); |
251 | } | |
252 | if(pidESD!=0){ | |
253 | pidESD->MakePID(esd); | |
254 | } | |
255 | else { | |
256 | Error("FillESD","!! cannot do the PID !!\n"); | |
257 | } | |
121a60bd | 258 | } |
259 | ||
260 | ||
261 | //_____________________________________________________________________________ | |
262 | AliITSgeom* AliITSReconstructor::GetITSgeom(AliRunLoader* runLoader) const | |
263 | { | |
264 | // get the ITS geometry | |
265 | ||
266 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
267 | if (!runLoader->GetAliRun()) { | |
268 | Error("GetITSgeom", "couldn't get AliRun object"); | |
269 | return NULL; | |
270 | } | |
8e50d897 | 271 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); |
272 | AliITSgeom* geom = (AliITSgeom*)loader->GetITSgeom(); | |
7d62fb64 | 273 | if(!geom){ |
274 | Error("GetITSgeom","no ITS geometry available"); | |
121a60bd | 275 | return NULL; |
276 | } | |
7d62fb64 | 277 | |
278 | return geom; | |
121a60bd | 279 | } |