1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // class for ITS reconstruction //
22 ///////////////////////////////////////////////////////////////////////////////
24 #include "Riostream.h"
25 #include "AliITSReconstructor.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"
46 ClassImp(AliITSReconstructor)
48 AliITSRecoParam *AliITSReconstructor::fgkRecoParam =0; // reconstruction parameters
50 //___________________________________________________________________________
51 AliITSReconstructor::AliITSReconstructor() : AliReconstructor(),
55 // Default constructor
57 AliError("The Reconstruction parameters nonitialized - Used default one");
58 fgkRecoParam = AliITSRecoParam::GetHighFluxParam();
61 //___________________________________________________________________________
62 AliITSReconstructor::~AliITSReconstructor(){
65 if(fgkRecoParam) delete fgkRecoParam;
66 if(fDetTypeRec) delete fDetTypeRec;
68 //______________________________________________________________________
69 AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob),
71 fDetTypeRec(ob.fDetTypeRec)
77 //______________________________________________________________________
78 AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){
79 // Assignment operator
80 this->~AliITSReconstructor();
81 new(this) AliITSReconstructor(ob);
85 //______________________________________________________________________
86 void AliITSReconstructor::Init() {
87 // Initalize this constructor bet getting/creating the objects
88 // nesseary for a proper ITS reconstruction.
96 AliITSInitGeometry initgeom;
97 AliITSgeom *geom = initgeom.CreateAliITSgeom();
98 AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data()));
100 fDetTypeRec = new AliITSDetTypeRec();
101 fDetTypeRec->SetITSgeom(geom);
102 fDetTypeRec->SetDefaults();
107 //_____________________________________________________________________________
108 void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const
110 // reconstruct clusters
112 TString option = GetOption();
113 Bool_t clusfinder=kTRUE; // Default: V2 cluster finder
114 if(option.Contains("OrigCF"))clusfinder=kFALSE;
116 fDetTypeRec->SetTreeAddressD(digitsTree);
117 fDetTypeRec->MakeBranch(clustersTree,"R");
118 fDetTypeRec->SetTreeAddressR(clustersTree);
119 fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,"All",clusfinder);
122 //_________________________________________________________________
123 void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const
125 // reconstruct clusters from raw data
127 fDetTypeRec->SetDefaultClusterFindersV2(kTRUE);
128 fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree);
131 //_____________________________________________________________________________
132 AliTracker* AliITSReconstructor::CreateTracker() const
134 // create a ITS tracker
137 TString selectedTracker = GetOption();
139 if (selectedTracker.Contains("MI")) {
140 tracker = new AliITStrackerMI(0);
142 else if (selectedTracker.Contains("V2")) {
143 tracker = new AliITStrackerV2(0);
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);
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);
161 Info("FillESD","ITS default PID\n");
162 Double_t parITS[] = {79.,0.13, 5.}; //IB: this is "pp tuning"
163 nc->fItsPID = new AliITSpidESD1(parITS);
170 //_____________________________________________________________________________
171 AliVertexer* AliITSReconstructor::CreateVertexer() const
173 // create a ITS vertexer
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");
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);
185 if(selectedVertexer.Contains("3d") || selectedVertexer.Contains("3D")){
186 Info("CreateVertexer","a AliITSVertexer3D object has been selected\n");
187 return new AliITSVertexer3D("null");
189 if(selectedVertexer.Contains("cosmics") || selectedVertexer.Contains("COSMICS")){
190 Info("CreateVertexer","a AliITSVertexerCosmics object has been selected\n");
191 return new AliITSVertexerCosmics();
193 // by default an AliITSVertexerZ object is instatiated
194 Info("CreateVertexer","a AliITSVertexerZ object has been selected\n");
195 return new AliITSVertexerZ("null");
198 //_____________________________________________________________________________
199 void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree *clustersTree,
200 AliESDEvent* esd) const
202 // make PID, find V0s and cascade
204 TString selectedPIDmethod = GetOption();
205 if(selectedPIDmethod.Contains("LandauFitPID")){
206 fItsPID->MakePID(clustersTree,esd);
209 fItsPID->MakePID(esd);
213 Error("FillESD","!! cannot do the PID !!\n");