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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 "AliITSgeom.h" | |
31 | #include "AliITSLoader.h" | |
32 | #include "AliITStrackerMI.h" | |
33 | #include "AliITStrackerV2.h" | |
34 | #include "AliITStrackerSA.h" | |
35 | #include "AliITSVertexerIons.h" | |
36 | #include "AliITSVertexerFast.h" | |
37 | #include "AliITSVertexer3D.h" | |
38 | #include "AliITSVertexerZ.h" | |
39 | #include "AliITSVertexerCosmics.h" | |
40 | #include "AliESDEvent.h" | |
41 | #include "AliITSpidESD.h" | |
42 | #include "AliITSpidESD1.h" | |
43 | #include "AliITSpidESD2.h" | |
44 | #include "AliITSInitGeometry.h" | |
45 | ||
46 | ||
47 | ClassImp(AliITSReconstructor) | |
48 | ||
49 | AliITSRecoParam *AliITSReconstructor::fgkRecoParam =0; // reconstruction parameters | |
50 | ||
51 | //___________________________________________________________________________ | |
52 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), | |
53 | fItsPID(0), | |
54 | fDetTypeRec(0) | |
55 | { | |
56 | // Default constructor | |
57 | if (!fgkRecoParam) { | |
58 | AliError("The Reconstruction parameters nonitialized - Used default one"); | |
59 | fgkRecoParam = AliITSRecoParam::GetHighFluxParam(); | |
60 | } | |
61 | } | |
62 | //___________________________________________________________________________ | |
63 | AliITSReconstructor::~AliITSReconstructor(){ | |
64 | // destructor | |
65 | delete fItsPID; | |
66 | if(fgkRecoParam) delete fgkRecoParam; | |
67 | if(fDetTypeRec) delete fDetTypeRec; | |
68 | } | |
69 | //______________________________________________________________________ | |
70 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), | |
71 | fItsPID(ob.fItsPID), | |
72 | fDetTypeRec(ob.fDetTypeRec) | |
73 | ||
74 | { | |
75 | // Copy constructor | |
76 | } | |
77 | ||
78 | //______________________________________________________________________ | |
79 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ | |
80 | // Assignment operator | |
81 | this->~AliITSReconstructor(); | |
82 | new(this) AliITSReconstructor(ob); | |
83 | return *this; | |
84 | } | |
85 | ||
86 | //______________________________________________________________________ | |
87 | void AliITSReconstructor::Init(AliRunLoader */*runLoader*/) { | |
88 | // Initalize this constructor bet getting/creating the objects | |
89 | // nesseary for a proper ITS reconstruction. | |
90 | // Inputs: | |
91 | // AliRunLoader *runLoader Pointer to the run loader to allow | |
92 | // the getting of files/folders data | |
93 | // needed to do reconstruction | |
94 | // Output: | |
95 | // none. | |
96 | // Return: | |
97 | // none. | |
98 | ||
99 | AliITSInitGeometry initgeom; | |
100 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
101 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
102 | ||
103 | fDetTypeRec = new AliITSDetTypeRec(); | |
104 | fDetTypeRec->SetITSgeom(geom); | |
105 | fDetTypeRec->SetDefaults(); | |
106 | ||
107 | return; | |
108 | } | |
109 | ||
110 | //_____________________________________________________________________________ | |
111 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const | |
112 | { | |
113 | // reconstruct clusters | |
114 | ||
115 | TString option = GetOption(); | |
116 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
117 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
118 | ||
119 | fDetTypeRec->SetTreeAddressD(digitsTree); | |
120 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
121 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
122 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,"All",clusfinder); | |
123 | } | |
124 | ||
125 | //_________________________________________________________________ | |
126 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const | |
127 | { | |
128 | // reconstruct clusters from raw data | |
129 | ||
130 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); | |
131 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree); | |
132 | } | |
133 | ||
134 | //_____________________________________________________________________________ | |
135 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const | |
136 | { | |
137 | // create a ITS tracker | |
138 | ||
139 | ||
140 | TString selectedTracker = GetOption(); | |
141 | AliTracker* tracker; | |
142 | if (selectedTracker.Contains("MI")) { | |
143 | tracker = new AliITStrackerMI(0); | |
144 | } | |
145 | else if (selectedTracker.Contains("V2")) { | |
146 | tracker = new AliITStrackerV2(0); | |
147 | } | |
148 | else { | |
149 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI | |
150 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; | |
151 | if(selectedTracker.Contains("onlyITS"))sat->SetSAFlag(kTRUE); | |
152 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
153 | if(selectedTracker.Contains("cosmics")||selectedTracker.Contains("COSMICS")) | |
154 | sat->SetOuterStartLayer(AliITSgeomTGeo::GetNLayers()-2); | |
155 | } | |
156 | ||
157 | TString selectedPIDmethod = GetOption(); | |
158 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
159 | if (!loader) { | |
160 | Error("CreateTracker", "ITS loader not found"); | |
161 | } | |
162 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
163 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
164 | } | |
165 | else{ | |
166 | Double_t parITS[] = {0.15, 10.}; //PH positions of the MIP peak | |
167 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); | |
168 | } | |
169 | return tracker; | |
170 | ||
171 | } | |
172 | ||
173 | //_____________________________________________________________________________ | |
174 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
175 | { | |
176 | // create a ITS vertexer | |
177 | ||
178 | TString selectedVertexer = GetOption(); | |
179 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ | |
180 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
181 | return new AliITSVertexerIons("null"); | |
182 | } | |
183 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
184 | Double_t smear[3]={0.005,0.005,0.01}; | |
185 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
186 | return new AliITSVertexerFast(smear); | |
187 | } | |
188 | if(selectedVertexer.Contains("3d") || selectedVertexer.Contains("3D")){ | |
189 | Info("CreateVertexer","a AliITSVertexer3D object has been selected\n"); | |
190 | return new AliITSVertexer3D("null"); | |
191 | } | |
192 | if(selectedVertexer.Contains("cosmics") || selectedVertexer.Contains("COSMICS")){ | |
193 | Info("CreateVertexer","a AliITSVertexerCosmics object has been selected\n"); | |
194 | return new AliITSVertexerCosmics(); | |
195 | } | |
196 | // by default an AliITSVertexerZ object is instatiated | |
197 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
198 | return new AliITSVertexerZ("null"); | |
199 | } | |
200 | ||
201 | //_____________________________________________________________________________ | |
202 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, | |
203 | AliESDEvent* esd) const | |
204 | { | |
205 | // make PID, find V0s and cascade | |
206 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
207 | AliITSpidESD *pidESD = 0; | |
208 | TString selectedPIDmethod = GetOption(); | |
209 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
210 | Info("FillESD","ITS LandauFitPID option has been selected\n"); | |
211 | pidESD=loader->GetITSpid(); | |
212 | } | |
213 | else{ | |
214 | Info("FillESD","ITS default PID\n"); | |
215 | pidESD=loader->GetITSpid(); | |
216 | } | |
217 | if(pidESD!=0){ | |
218 | pidESD->MakePID(esd); | |
219 | } | |
220 | else { | |
221 | Error("FillESD","!! cannot do the PID !!\n"); | |
222 | } | |
223 | } |