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