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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" |
121a60bd | 39 | #include "AliESD.h" |
40 | #include "AliITSpidESD.h" | |
e62c1aea | 41 | #include "AliITSpidESD1.h" |
42 | #include "AliITSpidESD2.h" | |
023ae34b | 43 | #include "AliITSInitGeometry.h" |
121a60bd | 44 | |
45 | ClassImp(AliITSReconstructor) | |
46 | ||
e62c1aea | 47 | //___________________________________________________________________________ |
94631b2f | 48 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
49 | fItsPID(0) | |
50 | { | |
e62c1aea | 51 | // Default constructor |
e62c1aea | 52 | } |
53 | //___________________________________________________________________________ | |
54 | AliITSReconstructor::~AliITSReconstructor(){ | |
55 | // destructor | |
56 | delete fItsPID; | |
57 | } | |
58 | //______________________________________________________________________ | |
94631b2f | 59 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), |
60 | fItsPID(ob.fItsPID) | |
61 | { | |
e62c1aea | 62 | // Copy constructor |
e62c1aea | 63 | } |
64 | ||
65 | //______________________________________________________________________ | |
94631b2f | 66 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ |
e62c1aea | 67 | // Assignment operator |
94631b2f | 68 | this->~AliITSReconstructor(); |
69 | new(this) AliITSReconstructor(ob); | |
e62c1aea | 70 | return *this; |
71 | } | |
023ae34b | 72 | //______________________________________________________________________ |
94631b2f | 73 | void AliITSReconstructor::Init(AliRunLoader *runLoader) const{ |
023ae34b | 74 | // Initalize this constructor bet getting/creating the objects |
75 | // nesseary for a proper ITS reconstruction. | |
76 | // Inputs: | |
77 | // AliRunLoader *runLoader Pointer to the run loader to allow | |
78 | // the getting of files/folders data | |
79 | // needed to do reconstruction | |
80 | // Output: | |
81 | // none. | |
82 | // Return: | |
83 | // none. | |
00a7cc50 | 84 | |
108bd0fe | 85 | AliITSInitGeometry initgeom; |
86 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
87 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
023ae34b | 88 | AliITSLoader* loader = static_cast<AliITSLoader*> |
89 | (runLoader->GetLoader("ITSLoader")); | |
90 | if (!loader) { | |
91 | Error("Init", "ITS loader not found"); | |
92 | return; | |
93 | } | |
94 | loader->SetITSgeom(geom); | |
95 | return; | |
96 | } | |
121a60bd | 97 | //_____________________________________________________________________________ |
98 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
99 | { | |
100 | // reconstruct clusters | |
101 | ||
7d62fb64 | 102 | |
8e50d897 | 103 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
121a60bd | 104 | if (!loader) { |
105 | Error("Reconstruct", "ITS loader not found"); | |
106 | return; | |
107 | } | |
8e50d897 | 108 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 109 | rec->SetDefaults(); |
110 | ||
121a60bd | 111 | loader->LoadRecPoints("recreate"); |
112 | loader->LoadDigits("read"); | |
113 | runLoader->LoadKinematics(); | |
00a7cc50 | 114 | TString option = GetOption(); |
115 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
116 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
121a60bd | 117 | |
121a60bd | 118 | Int_t nEvents = runLoader->GetNumberOfEvents(); |
119 | ||
120 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
121 | runLoader->GetEvent(iEvent); | |
00a7cc50 | 122 | if(loader->TreeR()==0x0) loader->MakeTree("R"); |
123 | rec->MakeBranch("R"); | |
124 | rec->SetTreeAddress(); | |
125 | rec->DigitsToRecPoints(iEvent,0,"All",clusfinder); | |
121a60bd | 126 | } |
127 | ||
128 | loader->UnloadRecPoints(); | |
129 | loader->UnloadDigits(); | |
130 | runLoader->UnloadKinematics(); | |
131 | } | |
132 | ||
00a7cc50 | 133 | //_________________________________________________________________ |
134 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader, | |
135 | AliRawReader* rawReader) const | |
113c12f1 | 136 | { |
00a7cc50 | 137 | // reconstruct clusters |
113c12f1 | 138 | |
00a7cc50 | 139 | |
8e50d897 | 140 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); |
113c12f1 | 141 | if (!loader) { |
142 | Error("Reconstruct", "ITS loader not found"); | |
143 | return; | |
144 | } | |
00a7cc50 | 145 | |
8e50d897 | 146 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); |
00a7cc50 | 147 | rec->SetDefaults(); |
148 | rec->SetDefaultClusterFindersV2(kTRUE); | |
113c12f1 | 149 | |
00a7cc50 | 150 | loader->LoadRecPoints("recreate"); |
113c12f1 | 151 | |
152 | Int_t iEvent = 0; | |
113c12f1 | 153 | |
00a7cc50 | 154 | while(rawReader->NextEvent()) { |
155 | runLoader->GetEvent(iEvent++); | |
156 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
157 | rec->DigitsToRecPoints(rawReader); | |
113c12f1 | 158 | } |
159 | ||
160 | loader->UnloadRecPoints(); | |
161 | } | |
162 | ||
121a60bd | 163 | //_____________________________________________________________________________ |
e62c1aea | 164 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const |
121a60bd | 165 | { |
166 | // create a ITS tracker | |
167 | ||
7d62fb64 | 168 | |
e43c066c | 169 | TString selectedTracker = GetOption(); |
e62c1aea | 170 | AliTracker* tracker; |
171 | if (selectedTracker.Contains("MI")) { | |
e341247d | 172 | tracker = new AliITStrackerMI(0); |
c0342e67 | 173 | } |
174 | else if (selectedTracker.Contains("V2")) { | |
175 | tracker = new AliITStrackerV2(0); | |
e62c1aea | 176 | } |
177 | else { | |
cc088660 | 178 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 179 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
180 | if(selectedTracker.Contains("onlyITS"))sat->SetSAFlag(kTRUE); | |
181 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
e62c1aea | 182 | } |
7d62fb64 | 183 | |
e62c1aea | 184 | TString selectedPIDmethod = GetOption(); |
185 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
186 | if (!loader) { | |
187 | Error("CreateTracker", "ITS loader not found"); | |
188 | } | |
189 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
190 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
191 | } | |
192 | else{ | |
131adda9 | 193 | Double_t parITS[] = {76., 0.15, 10.}; //PH positions of the MIP peak |
e62c1aea | 194 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); |
195 | } | |
196 | return tracker; | |
7d62fb64 | 197 | |
121a60bd | 198 | } |
199 | ||
200 | //_____________________________________________________________________________ | |
201 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
202 | { | |
203 | // create a ITS vertexer | |
204 | ||
f4d5a8d1 | 205 | TString selectedVertexer = GetOption(); |
121a60bd | 206 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ |
207 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
208 | return new AliITSVertexerIons("null"); | |
209 | } | |
210 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
211 | Double_t smear[3]={0.005,0.005,0.01}; | |
212 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
213 | return new AliITSVertexerFast(smear); | |
214 | } | |
3acc14d5 | 215 | if(selectedVertexer.Contains("3d") || selectedVertexer.Contains("3D")){ |
216 | Info("CreateVertexer","a AliITSVertexer3D object has been selected\n"); | |
217 | return new AliITSVertexer3D("null"); | |
218 | } | |
219 | if(selectedVertexer.Contains("cosmics") || selectedVertexer.Contains("COSMICS")){ | |
220 | Info("CreateVertexer","a AliITSVertexerCosmics object has been selected\n"); | |
221 | return new AliITSVertexerCosmics(); | |
121a60bd | 222 | } |
223 | // by default an AliITSVertexerZ object is instatiated | |
224 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
225 | return new AliITSVertexerZ("null"); | |
226 | } | |
227 | ||
228 | //_____________________________________________________________________________ | |
e62c1aea | 229 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, |
121a60bd | 230 | AliESD* esd) const |
231 | { | |
e62c1aea | 232 | // make PID, find V0s and cascade |
233 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
234 | AliITSpidESD *pidESD = 0; | |
235 | TString selectedPIDmethod = GetOption(); | |
236 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
149c4c59 | 237 | Info("FillESD","ITS LandauFitPID option has been selected\n"); |
e62c1aea | 238 | pidESD=loader->GetITSpid(); |
239 | } | |
240 | else{ | |
149c4c59 | 241 | Info("FillESD","ITS default PID\n"); |
e62c1aea | 242 | pidESD=loader->GetITSpid(); |
243 | } | |
244 | if(pidESD!=0){ | |
245 | pidESD->MakePID(esd); | |
246 | } | |
247 | else { | |
248 | Error("FillESD","!! cannot do the PID !!\n"); | |
249 | } | |
121a60bd | 250 | } |
251 | ||
252 | ||
253 | //_____________________________________________________________________________ | |
254 | AliITSgeom* AliITSReconstructor::GetITSgeom(AliRunLoader* runLoader) const | |
255 | { | |
256 | // get the ITS geometry | |
257 | ||
258 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
259 | if (!runLoader->GetAliRun()) { | |
260 | Error("GetITSgeom", "couldn't get AliRun object"); | |
261 | return NULL; | |
262 | } | |
8e50d897 | 263 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); |
264 | AliITSgeom* geom = (AliITSgeom*)loader->GetITSgeom(); | |
7d62fb64 | 265 | if(!geom){ |
266 | Error("GetITSgeom","no ITS geometry available"); | |
121a60bd | 267 | return NULL; |
268 | } | |
7d62fb64 | 269 | |
270 | return geom; | |
121a60bd | 271 | } |