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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" |
7ef60110 | 28 | #include "AliESDEvent.h" |
29 | #include "AliESDpid.h" | |
00a7cc50 | 30 | #include "AliITSDetTypeRec.h" |
6cae184e | 31 | #include "AliITSgeom.h" |
7d62fb64 | 32 | #include "AliITSLoader.h" |
e43c066c | 33 | #include "AliITStrackerMI.h" |
c0342e67 | 34 | #include "AliITStrackerV2.h" |
121a60bd | 35 | #include "AliITStrackerSA.h" |
36 | #include "AliITSVertexerIons.h" | |
37 | #include "AliITSVertexerFast.h" | |
c8735dd3 | 38 | #include "AliITSVertexerFixed.h" |
3acc14d5 | 39 | #include "AliITSVertexer3D.h" |
121a60bd | 40 | #include "AliITSVertexerZ.h" |
3acc14d5 | 41 | #include "AliITSVertexerCosmics.h" |
023ae34b | 42 | #include "AliITSInitGeometry.h" |
58e8dc31 | 43 | #include "AliITSTrackleterSPDEff.h" |
121a60bd | 44 | |
44347160 | 45 | |
121a60bd | 46 | ClassImp(AliITSReconstructor) |
44347160 | 47 | |
e62c1aea | 48 | //___________________________________________________________________________ |
94631b2f | 49 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
6cae184e | 50 | fDetTypeRec(0) |
94631b2f | 51 | { |
e62c1aea | 52 | // Default constructor |
e62c1aea | 53 | } |
54 | //___________________________________________________________________________ | |
55 | AliITSReconstructor::~AliITSReconstructor(){ | |
56 | // destructor | |
6cae184e | 57 | if(fDetTypeRec) delete fDetTypeRec; |
e62c1aea | 58 | } |
7ef60110 | 59 | //____________________________________________________________________________ |
60 | void AliITSReconstructor::GetPidSettings(AliESDpid *ESDpid) { | |
61 | // | |
62 | // pass PID settings from AliITSRecoParam to AliESDpid | |
63 | // | |
64 | Int_t pidOpt = GetRecoParam()->GetPID(); | |
6cae184e | 65 | |
7ef60110 | 66 | if(pidOpt==1){ |
67 | AliInfo("ITS LandauFitPID option has been selected\n"); | |
68 | ESDpid->SetITSPIDmethod(AliESDpid::kITSLikelihood); | |
69 | } | |
70 | else{ | |
71 | AliInfo("ITS default PID\n"); | |
72 | ESDpid->SetITSPIDmethod(AliESDpid::kITSTruncMean); | |
73 | } | |
74 | } | |
023ae34b | 75 | //______________________________________________________________________ |
d76c31f4 | 76 | void AliITSReconstructor::Init() { |
023ae34b | 77 | // Initalize this constructor bet getting/creating the objects |
78 | // nesseary for a proper ITS reconstruction. | |
79 | // Inputs: | |
d76c31f4 | 80 | // none. |
023ae34b | 81 | // Output: |
82 | // none. | |
83 | // Return: | |
84 | // none. | |
00a7cc50 | 85 | |
108bd0fe | 86 | AliITSInitGeometry initgeom; |
87 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
88 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
6cae184e | 89 | |
90 | fDetTypeRec = new AliITSDetTypeRec(); | |
91 | fDetTypeRec->SetITSgeom(geom); | |
92 | fDetTypeRec->SetDefaults(); | |
ed446fa3 | 93 | |
023ae34b | 94 | return; |
95 | } | |
6cae184e | 96 | |
121a60bd | 97 | //_____________________________________________________________________________ |
6cae184e | 98 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const |
121a60bd | 99 | { |
100 | // reconstruct clusters | |
101 | ||
9f9cae94 | 102 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); |
121a60bd | 103 | |
6cae184e | 104 | fDetTypeRec->SetTreeAddressD(digitsTree); |
105 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
106 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
5d2c2f86 | 107 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,"All",cluFindOpt); |
121a60bd | 108 | } |
109 | ||
00a7cc50 | 110 | //_________________________________________________________________ |
6cae184e | 111 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const |
113c12f1 | 112 | { |
6cae184e | 113 | // reconstruct clusters from raw data |
00a7cc50 | 114 | |
6cae184e | 115 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); |
116 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree); | |
113c12f1 | 117 | } |
58e8dc31 | 118 | //_____________________________________________________________________________ |
119 | AliTracker* AliITSReconstructor::CreateTrackleter() const | |
120 | { | |
121 | // create the SPD trackeleter (for SPD PlaneEfficiency evaluation) | |
1a64bda6 | 122 | if(!GetRecoParam()->GetComputePlaneEff() || !GetRecoParam()->GetUseTrackletsPlaneEff()) return NULL; |
58e8dc31 | 123 | //Int_t trackerOpt = GetRecoParam()->GetTracker(); |
124 | AliTracker* trackleter; | |
125 | trackleter = new AliITSTrackleterSPDEff(); | |
126 | AliITSTrackleterSPDEff *spdtrackleter=(AliITSTrackleterSPDEff*)trackleter; | |
127 | // here set cuts (from RecoParam) | |
128 | if(GetRecoParam()->GetBkgTrackletsPlaneEff()) spdtrackleter->SetReflectClusterAroundZAxisForLayer(1,kTRUE); | |
129 | if(GetRecoParam()->GetMCTrackletsPlaneEff()) spdtrackleter->SetMC(); | |
130 | spdtrackleter->SetHistOn(); | |
7284b2b2 | 131 | spdtrackleter->SetPhiWindowL2(GetRecoParam()->GetTrackleterPhiWindowL2()); |
132 | spdtrackleter->SetZetaWindowL2(GetRecoParam()->GetTrackleterZetaWindowL2()); | |
58e8dc31 | 133 | spdtrackleter->SetPhiWindowL1(GetRecoParam()->GetTrackleterPhiWindowL1()); |
134 | spdtrackleter->SetZetaWindowL1(GetRecoParam()->GetTrackleterZetaWindowL1()); | |
135 | if(GetRecoParam()->GetUpdateOncePerEventPlaneEff()) spdtrackleter->SetUpdateOncePerEventPlaneEff(); | |
0ea92079 | 136 | spdtrackleter->SetMinContVtx(GetRecoParam()->GetMinContVtxPlaneEff()); |
58e8dc31 | 137 | return trackleter; |
138 | } | |
113c12f1 | 139 | |
121a60bd | 140 | //_____________________________________________________________________________ |
d76c31f4 | 141 | AliTracker* AliITSReconstructor::CreateTracker() const |
121a60bd | 142 | { |
143 | // create a ITS tracker | |
144 | ||
9f9cae94 | 145 | Int_t trackerOpt = GetRecoParam()->GetTracker(); |
e62c1aea | 146 | AliTracker* tracker; |
9f9cae94 | 147 | if (trackerOpt==1) { |
e341247d | 148 | tracker = new AliITStrackerMI(0); |
23197852 | 149 | AliITStrackerMI *mit=(AliITStrackerMI*)tracker; |
150 | mit->SetDetTypeRec(fDetTypeRec); | |
c0342e67 | 151 | } |
9f9cae94 | 152 | else if (trackerOpt==2) { |
c0342e67 | 153 | tracker = new AliITStrackerV2(0); |
e62c1aea | 154 | } |
155 | else { | |
cc088660 | 156 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 157 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
23197852 | 158 | sat->SetDetTypeRec(fDetTypeRec); |
9f9cae94 | 159 | if(GetRecoParam()->GetTrackerSAOnly()) sat->SetSAFlag(kTRUE); |
1966f03c | 160 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); |
58e8dc31 | 161 | if(GetRecoParam()->GetInwardFindingSA()){ |
162 | sat->SetInwardFinding(); | |
163 | sat->SetInnerStartLayer(GetRecoParam()->GetInnerStartLayerSA()); | |
164 | }else{ | |
12b1afb7 | 165 | sat->SetOutwardFinding(); |
166 | sat->SetOuterStartLayer(GetRecoParam()->GetOuterStartLayerSA()); | |
58e8dc31 | 167 | } |
12b1afb7 | 168 | sat->SetMinNPoints(GetRecoParam()->GetMinNPointsSA()); |
e62c1aea | 169 | } |
7d62fb64 | 170 | |
e62c1aea | 171 | return tracker; |
7d62fb64 | 172 | |
121a60bd | 173 | } |
174 | ||
175 | //_____________________________________________________________________________ | |
d76c31f4 | 176 | AliVertexer* AliITSReconstructor::CreateVertexer() const |
121a60bd | 177 | { |
178 | // create a ITS vertexer | |
179 | ||
ff44c37c | 180 | AliITSVertexer *vptr; |
9f9cae94 | 181 | Int_t vtxOpt = GetRecoParam()->GetVertexer(); |
182 | if(vtxOpt==3){ | |
8b78365f | 183 | AliInfo("AliITSVertexerIons has been selected"); |
ff44c37c | 184 | vptr = new AliITSVertexerIons(); |
121a60bd | 185 | } |
ff44c37c | 186 | else if(vtxOpt==4){ |
9364069b | 187 | Double_t smear[3]={GetRecoParam()->GetVertexerFastSmearX(), |
188 | GetRecoParam()->GetVertexerFastSmearY(), | |
189 | GetRecoParam()->GetVertexerFastSmearZ()}; | |
8b78365f | 190 | AliInfo("AliITSVertexerFast has been selected"); |
ff44c37c | 191 | vptr = new AliITSVertexerFast(smear); |
121a60bd | 192 | } |
ff44c37c | 193 | else if(vtxOpt==1){ |
8b78365f | 194 | AliInfo("AliITSVertexerZ has been selected"); |
ff44c37c | 195 | vptr = new AliITSVertexerZ(); |
3acc14d5 | 196 | } |
ff44c37c | 197 | else if(vtxOpt==2){ |
8b78365f | 198 | AliInfo("AliITSVertexerCosmics has been selected"); |
ff44c37c | 199 | vptr = new AliITSVertexerCosmics(); |
121a60bd | 200 | } |
ff44c37c | 201 | else if(vtxOpt==5){ |
8b78365f | 202 | AliInfo("Vertex is fixed in the position of the TDI\n"); |
ff44c37c | 203 | vptr = new AliITSVertexerFixed("TDI"); |
c8735dd3 | 204 | } |
ff44c37c | 205 | else if(vtxOpt==6){ |
8b78365f | 206 | AliInfo("Vertex is fixed in the position of the TED\n"); |
ff44c37c | 207 | vptr = new AliITSVertexerFixed("TED"); |
c8735dd3 | 208 | } |
ff44c37c | 209 | else { |
99f38bf6 | 210 | // by default an AliITSVertexer3D object is instatiated |
ff44c37c | 211 | AliITSVertexer3D* vtxr = new AliITSVertexer3D(); |
212 | Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ(); | |
213 | Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR(); | |
214 | vtxr->SetWideFiducialRegion(dzw,drw); | |
215 | Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ(); | |
216 | Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR(); | |
217 | vtxr->SetNarrowFiducialRegion(dzn,drn); | |
218 | Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut(); | |
219 | Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut(); | |
220 | vtxr->SetDeltaPhiCuts(dphil,dphit); | |
221 | Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut(); | |
222 | vtxr->SetDCACut(dcacut); | |
8b78365f | 223 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); |
224 | vtxr->SetPileupAlgo(pileupAlgo); | |
225 | AliInfo(Form("AliITSVertexer3D with pileup algo %d has been selected",pileupAlgo)); | |
ff44c37c | 226 | vptr = vtxr; |
227 | } | |
228 | vptr->SetDetTypeRec(fDetTypeRec); | |
229 | return vptr; | |
121a60bd | 230 | } |
231 | ||
232 | //_____________________________________________________________________________ | |
1919a678 | 233 | void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree * /*clustersTree*/, |
7ef60110 | 234 | AliESDEvent* /* esd */) const |
121a60bd | 235 | { |
e62c1aea | 236 | // make PID, find V0s and cascade |
10d100d4 | 237 | /* Now done in AliESDpid |
1919a678 | 238 | if(fItsPID!=0) fItsPID->MakePID(esd); |
239 | else AliError("!! cannot do the PID !!"); | |
10d100d4 | 240 | */ |
6922a70f | 241 | } |