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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" |
113c12f1 | 27 | #include "AliRawReader.h" |
00a7cc50 | 28 | #include "AliITSDetTypeRec.h" |
6cae184e | 29 | #include "AliITSgeom.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" | |
c8735dd3 | 36 | #include "AliITSVertexerFixed.h" |
3acc14d5 | 37 | #include "AliITSVertexer3D.h" |
121a60bd | 38 | #include "AliITSVertexerZ.h" |
3acc14d5 | 39 | #include "AliITSVertexerCosmics.h" |
af885e0f | 40 | #include "AliESDEvent.h" |
121a60bd | 41 | #include "AliITSpidESD.h" |
e62c1aea | 42 | #include "AliITSpidESD1.h" |
43 | #include "AliITSpidESD2.h" | |
023ae34b | 44 | #include "AliITSInitGeometry.h" |
121a60bd | 45 | |
44347160 | 46 | |
121a60bd | 47 | ClassImp(AliITSReconstructor) |
44347160 | 48 | |
e62c1aea | 49 | //___________________________________________________________________________ |
94631b2f | 50 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
6cae184e | 51 | fItsPID(0), |
52 | fDetTypeRec(0) | |
94631b2f | 53 | { |
e62c1aea | 54 | // Default constructor |
e62c1aea | 55 | } |
56 | //___________________________________________________________________________ | |
57 | AliITSReconstructor::~AliITSReconstructor(){ | |
58 | // destructor | |
59 | delete fItsPID; | |
6cae184e | 60 | if(fDetTypeRec) delete fDetTypeRec; |
e62c1aea | 61 | } |
62 | //______________________________________________________________________ | |
94631b2f | 63 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), |
5c47990a | 64 | fItsPID(ob.fItsPID), |
65 | fDetTypeRec(ob.fDetTypeRec) | |
6cae184e | 66 | |
94631b2f | 67 | { |
e62c1aea | 68 | // Copy constructor |
e62c1aea | 69 | } |
70 | ||
71 | //______________________________________________________________________ | |
94631b2f | 72 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ |
e62c1aea | 73 | // Assignment operator |
94631b2f | 74 | this->~AliITSReconstructor(); |
75 | new(this) AliITSReconstructor(ob); | |
e62c1aea | 76 | return *this; |
77 | } | |
6cae184e | 78 | |
023ae34b | 79 | //______________________________________________________________________ |
d76c31f4 | 80 | void AliITSReconstructor::Init() { |
023ae34b | 81 | // Initalize this constructor bet getting/creating the objects |
82 | // nesseary for a proper ITS reconstruction. | |
83 | // Inputs: | |
d76c31f4 | 84 | // none. |
023ae34b | 85 | // Output: |
86 | // none. | |
87 | // Return: | |
88 | // none. | |
00a7cc50 | 89 | |
108bd0fe | 90 | AliITSInitGeometry initgeom; |
91 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
92 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
6cae184e | 93 | |
94 | fDetTypeRec = new AliITSDetTypeRec(); | |
95 | fDetTypeRec->SetITSgeom(geom); | |
96 | fDetTypeRec->SetDefaults(); | |
ed446fa3 | 97 | |
023ae34b | 98 | return; |
99 | } | |
6cae184e | 100 | |
121a60bd | 101 | //_____________________________________________________________________________ |
6cae184e | 102 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const |
121a60bd | 103 | { |
104 | // reconstruct clusters | |
105 | ||
9f9cae94 | 106 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); |
121a60bd | 107 | |
6cae184e | 108 | fDetTypeRec->SetTreeAddressD(digitsTree); |
109 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
110 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
5d2c2f86 | 111 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,"All",cluFindOpt); |
121a60bd | 112 | } |
113 | ||
00a7cc50 | 114 | //_________________________________________________________________ |
6cae184e | 115 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const |
113c12f1 | 116 | { |
6cae184e | 117 | // reconstruct clusters from raw data |
00a7cc50 | 118 | |
6cae184e | 119 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); |
120 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree); | |
113c12f1 | 121 | } |
122 | ||
121a60bd | 123 | //_____________________________________________________________________________ |
d76c31f4 | 124 | AliTracker* AliITSReconstructor::CreateTracker() const |
121a60bd | 125 | { |
126 | // create a ITS tracker | |
127 | ||
9f9cae94 | 128 | Int_t trackerOpt = GetRecoParam()->GetTracker(); |
e62c1aea | 129 | AliTracker* tracker; |
9f9cae94 | 130 | if (trackerOpt==1) { |
e341247d | 131 | tracker = new AliITStrackerMI(0); |
23197852 | 132 | AliITStrackerMI *mit=(AliITStrackerMI*)tracker; |
133 | mit->SetDetTypeRec(fDetTypeRec); | |
c0342e67 | 134 | } |
9f9cae94 | 135 | else if (trackerOpt==2) { |
c0342e67 | 136 | tracker = new AliITStrackerV2(0); |
e62c1aea | 137 | } |
138 | else { | |
cc088660 | 139 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 140 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
23197852 | 141 | sat->SetDetTypeRec(fDetTypeRec); |
9f9cae94 | 142 | if(GetRecoParam()->GetTrackerSAOnly()) sat->SetSAFlag(kTRUE); |
1966f03c | 143 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); |
12b1afb7 | 144 | if(GetRecoParam()->GetInwardFindingSA()){ |
145 | sat->SetInwardFinding(); | |
146 | sat->SetInnerStartLayer(GetRecoParam()->GetInnerStartLayerSA()); | |
147 | }else{ | |
148 | sat->SetOutwardFinding(); | |
149 | sat->SetOuterStartLayer(GetRecoParam()->GetOuterStartLayerSA()); | |
150 | } | |
151 | sat->SetMinNPoints(GetRecoParam()->GetMinNPointsSA()); | |
e62c1aea | 152 | } |
7d62fb64 | 153 | |
9f9cae94 | 154 | Int_t pidOpt = GetRecoParam()->GetPID(); |
155 | ||
d76c31f4 | 156 | AliITSReconstructor* nc = const_cast<AliITSReconstructor*>(this); |
9f9cae94 | 157 | if(pidOpt==1){ |
d76c31f4 | 158 | Info("FillESD","ITS LandauFitPID option has been selected\n"); |
159 | nc->fItsPID = new AliITSpidESD2((AliITStrackerMI*)tracker); | |
e62c1aea | 160 | } |
161 | else{ | |
d76c31f4 | 162 | Info("FillESD","ITS default PID\n"); |
7a8614f3 | 163 | Double_t parITS[] = {79.,0.13, 5.}; //IB: this is "pp tuning" |
d76c31f4 | 164 | nc->fItsPID = new AliITSpidESD1(parITS); |
e62c1aea | 165 | } |
38013a1a | 166 | |
e62c1aea | 167 | return tracker; |
7d62fb64 | 168 | |
121a60bd | 169 | } |
170 | ||
171 | //_____________________________________________________________________________ | |
d76c31f4 | 172 | AliVertexer* AliITSReconstructor::CreateVertexer() const |
121a60bd | 173 | { |
174 | // create a ITS vertexer | |
175 | ||
ff44c37c | 176 | AliITSVertexer *vptr; |
9f9cae94 | 177 | Int_t vtxOpt = GetRecoParam()->GetVertexer(); |
178 | if(vtxOpt==3){ | |
121a60bd | 179 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); |
ff44c37c | 180 | vptr = new AliITSVertexerIons(); |
121a60bd | 181 | } |
ff44c37c | 182 | else if(vtxOpt==4){ |
121a60bd | 183 | Double_t smear[3]={0.005,0.005,0.01}; |
184 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
ff44c37c | 185 | vptr = new AliITSVertexerFast(smear); |
121a60bd | 186 | } |
ff44c37c | 187 | else if(vtxOpt==1){ |
99f38bf6 | 188 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); |
ff44c37c | 189 | vptr = new AliITSVertexerZ(); |
3acc14d5 | 190 | } |
ff44c37c | 191 | else if(vtxOpt==2){ |
3acc14d5 | 192 | Info("CreateVertexer","a AliITSVertexerCosmics object has been selected\n"); |
ff44c37c | 193 | vptr = new AliITSVertexerCosmics(); |
121a60bd | 194 | } |
ff44c37c | 195 | else if(vtxOpt==5){ |
c8735dd3 | 196 | Info("CreateVertexer","vertex is fixed in the position of the TDI\n"); |
ff44c37c | 197 | vptr = new AliITSVertexerFixed("TDI"); |
c8735dd3 | 198 | } |
ff44c37c | 199 | else if(vtxOpt==6){ |
c8735dd3 | 200 | Info("CreateVertexer","vertex is fixed in the position of the TED\n"); |
ff44c37c | 201 | vptr = new AliITSVertexerFixed("TED"); |
c8735dd3 | 202 | } |
ff44c37c | 203 | else { |
99f38bf6 | 204 | // by default an AliITSVertexer3D object is instatiated |
ff44c37c | 205 | Info("CreateVertexer","a AliITSVertexer3D object has been selected\n"); |
206 | AliITSVertexer3D* vtxr = new AliITSVertexer3D(); | |
207 | Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ(); | |
208 | Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR(); | |
209 | vtxr->SetWideFiducialRegion(dzw,drw); | |
210 | Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ(); | |
211 | Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR(); | |
212 | vtxr->SetNarrowFiducialRegion(dzn,drn); | |
213 | Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut(); | |
214 | Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut(); | |
215 | vtxr->SetDeltaPhiCuts(dphil,dphit); | |
216 | Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut(); | |
217 | vtxr->SetDCACut(dcacut); | |
218 | vptr = vtxr; | |
219 | } | |
220 | vptr->SetDetTypeRec(fDetTypeRec); | |
221 | return vptr; | |
121a60bd | 222 | } |
223 | ||
224 | //_____________________________________________________________________________ | |
d76c31f4 | 225 | void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree *clustersTree, |
af885e0f | 226 | AliESDEvent* esd) const |
121a60bd | 227 | { |
e62c1aea | 228 | // make PID, find V0s and cascade |
d76c31f4 | 229 | if(fItsPID!=0) { |
9f9cae94 | 230 | Int_t pidOpt = GetRecoParam()->GetPID(); |
231 | if(pidOpt==1){ | |
d76c31f4 | 232 | fItsPID->MakePID(clustersTree,esd); |
9f9cae94 | 233 | }else{ |
d76c31f4 | 234 | fItsPID->MakePID(esd); |
235 | } | |
e62c1aea | 236 | } |
237 | else { | |
238 | Error("FillESD","!! cannot do the PID !!\n"); | |
239 | } | |
121a60bd | 240 | } |