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be9c5115 | 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 | ||
acd84897 | 16 | /* $Id$ */ |
fb17acd4 | 17 | |
be9c5115 | 18 | //------------------------------------------------------------------------- |
19 | // Implementation of the AliTracker class | |
9b83b8cc | 20 | // that is the base for AliTPCtracker, AliITStrackerV2 and AliTRDtracker |
21 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
be9c5115 | 22 | //------------------------------------------------------------------------- |
4811a3f4 | 23 | |
be9c5115 | 24 | #include <TMath.h> |
e23a38cb | 25 | #include <TH1F.h> |
9efabefd | 26 | #include <TGeoMatrix.h> |
be9c5115 | 27 | |
28 | #include "AliTracker.h" | |
e23a38cb | 29 | #include "AliGeomManager.h" |
c84a5e9e | 30 | #include "AliCluster.h" |
7d0f8548 | 31 | #include "AliKalmanTrack.h" |
eca4fa66 | 32 | #include "AliGlobalQADataMaker.h" |
41377c29 | 33 | |
e23a38cb | 34 | Bool_t AliTracker::fFillResiduals=kFALSE; |
57acd2d2 | 35 | TObjArray **AliTracker::fResiduals=NULL; |
36 | AliRecoParam::EventSpecie_t AliTracker::fEventSpecie=AliRecoParam::kDefault; | |
3b242889 | 37 | |
be9c5115 | 38 | ClassImp(AliTracker) |
39 | ||
3b242889 | 40 | AliTracker::AliTracker(): |
4811a3f4 | 41 | AliTrackerBase(), |
1f26f3e7 | 42 | fEventInfo(NULL) |
3b242889 | 43 | { |
44 | //-------------------------------------------------------------------- | |
45 | // The default constructor. | |
46 | //-------------------------------------------------------------------- | |
3b242889 | 47 | } |
48 | ||
fe12e09c | 49 | //__________________________________________________________________________ |
50 | AliTracker::AliTracker(const AliTracker &atr): | |
4811a3f4 | 51 | AliTrackerBase(atr), |
1f26f3e7 | 52 | fEventInfo(atr.fEventInfo) |
fe12e09c | 53 | { |
54 | //-------------------------------------------------------------------- | |
55 | // The default constructor. | |
56 | //-------------------------------------------------------------------- | |
f7920267 | 57 | } |
58 | ||
2f4c86d7 | 59 | //__________________________________________________________________________ |
60 | void AliTracker::FillClusterArray(TObjArray* /*array*/) const | |
61 | { | |
62 | // Publishes all pointers to clusters known to the tracker into the | |
63 | // passed object array. | |
64 | // The ownership is not transfered - the caller is not expected to delete | |
65 | // the clusters. | |
66 | ||
67 | AliWarning("should be overriden by a sub-class."); | |
68 | } | |
69 | ||
be9c5115 | 70 | //__________________________________________________________________________ |
71 | void AliTracker::CookLabel(AliKalmanTrack *t, Float_t wrong) const { | |
72 | //-------------------------------------------------------------------- | |
73 | //This function "cooks" a track label. If label<0, this track is fake. | |
74 | //-------------------------------------------------------------------- | |
75 | Int_t noc=t->GetNumberOfClusters(); | |
9b4aca55 | 76 | if (noc<1) return; |
be9c5115 | 77 | Int_t *lb=new Int_t[noc]; |
78 | Int_t *mx=new Int_t[noc]; | |
79 | AliCluster **clusters=new AliCluster*[noc]; | |
80 | ||
81 | Int_t i; | |
82 | for (i=0; i<noc; i++) { | |
83 | lb[i]=mx[i]=0; | |
84 | Int_t index=t->GetClusterIndex(i); | |
85 | clusters[i]=GetCluster(index); | |
86 | } | |
87 | ||
88 | Int_t lab=123456789; | |
89 | for (i=0; i<noc; i++) { | |
90 | AliCluster *c=clusters[i]; | |
91 | lab=TMath::Abs(c->GetLabel(0)); | |
92 | Int_t j; | |
93 | for (j=0; j<noc; j++) if (lb[j]==lab || mx[j]==0) break; | |
94 | lb[j]=lab; | |
95 | (mx[j])++; | |
96 | } | |
97 | ||
98 | Int_t max=0; | |
99 | for (i=0; i<noc; i++) if (mx[i]>max) {max=mx[i]; lab=lb[i];} | |
100 | ||
101 | for (i=0; i<noc; i++) { | |
102 | AliCluster *c=clusters[i]; | |
babd135a | 103 | //if (TMath::Abs(c->GetLabel(1)) == lab || |
104 | // TMath::Abs(c->GetLabel(2)) == lab ) max++; | |
105 | if (TMath::Abs(c->GetLabel(0)!=lab)) | |
106 | if (TMath::Abs(c->GetLabel(1)) == lab || | |
107 | TMath::Abs(c->GetLabel(2)) == lab ) max++; | |
be9c5115 | 108 | } |
109 | ||
110 | if ((1.- Float_t(max)/noc) > wrong) lab=-lab; | |
babd135a | 111 | t->SetFakeRatio((1.- Float_t(max)/noc)); |
be9c5115 | 112 | t->SetLabel(lab); |
113 | ||
114 | delete[] lb; | |
115 | delete[] mx; | |
116 | delete[] clusters; | |
117 | } | |
118 | ||
119 | //____________________________________________________________________________ | |
120 | void AliTracker::UseClusters(const AliKalmanTrack *t, Int_t from) const { | |
121 | //------------------------------------------------------------------ | |
122 | //This function marks clusters associated with the track. | |
123 | //------------------------------------------------------------------ | |
124 | Int_t noc=t->GetNumberOfClusters(); | |
125 | for (Int_t i=from; i<noc; i++) { | |
126 | Int_t index=t->GetClusterIndex(i); | |
127 | AliCluster *c=GetCluster(index); | |
128 | c->Use(); | |
129 | } | |
130 | } | |
7b5ef2e6 | 131 | |
e23a38cb | 132 | void AliTracker::FillResiduals(const AliExternalTrackParam *t, |
133 | Double_t *p, Double_t *cov, | |
134 | UShort_t id, Bool_t updated) { | |
135 | // | |
136 | // This function fills the histograms of residuals | |
137 | // The array of these histos is external for this AliTracker class. | |
138 | // Normally, this array belong to AliGlobalQADataMaker class. | |
139 | // | |
140 | if (!fFillResiduals) return; | |
141 | if (!fResiduals) return; | |
142 | ||
143 | const Double_t *residuals=t->GetResiduals(p,cov,updated); | |
144 | if (!residuals) return; | |
145 | ||
146 | TH1F *h=0; | |
eca4fa66 | 147 | Int_t esIndex = AliRecoParam::AConvert(fEventSpecie) ; |
e23a38cb | 148 | AliGeomManager::ELayerID layer=AliGeomManager::VolUIDToLayer(id); |
eca4fa66 | 149 | h=(TH1F*)fResiduals[esIndex]->At(2*layer-2); |
74e15cf4 | 150 | if (h) h->Fill(residuals[0]); |
eca4fa66 | 151 | h=(TH1F*)fResiduals[esIndex]->At(2*layer-1); |
74e15cf4 | 152 | if (h) h->Fill(residuals[1]); |
a935c6c0 | 153 | |
154 | if (layer==5) { | |
49ab451d | 155 | if (p[1]<0) { // SSD1 absolute residuals |
74e15cf4 | 156 | h = (TH1F*)fResiduals[esIndex]->At(40); |
157 | if (h) h->Fill(t->GetY()-p[0]); //C side | |
158 | h = (TH1F*)fResiduals[esIndex]->At(41); | |
159 | if (h) h->Fill(t->GetZ()-p[1]); | |
49ab451d | 160 | } else { |
74e15cf4 | 161 | h = (TH1F*)fResiduals[esIndex]->At(42); |
162 | if (h) h->Fill(t->GetY()-p[0]); //A side | |
163 | h = (TH1F*)fResiduals[esIndex]->At(43); | |
164 | if (h) h->Fill(t->GetZ()-p[1]); | |
49ab451d | 165 | } |
a935c6c0 | 166 | } |
49ab451d | 167 | if (layer==6) { // SSD2 absolute residuals |
168 | if (p[1]<0) { | |
74e15cf4 | 169 | h = (TH1F*)fResiduals[esIndex]->At(44); |
170 | if (h) h->Fill(t->GetY()-p[0]); //C side | |
171 | h = (TH1F*)fResiduals[esIndex]->At(45); | |
172 | if (h) h->Fill(t->GetZ()-p[1]); | |
49ab451d | 173 | } else { |
74e15cf4 | 174 | h = (TH1F*)fResiduals[esIndex]->At(46); |
175 | if (h) h->Fill(t->GetY()-p[0]); //A side | |
176 | h = (TH1F*)fResiduals[esIndex]->At(47); | |
177 | if (h) h->Fill(t->GetZ()-p[1]); | |
49ab451d | 178 | } |
a935c6c0 | 179 | } |
180 | ||
e23a38cb | 181 | } |
182 | ||
9efabefd | 183 | void AliTracker::FillResiduals(const AliExternalTrackParam *t, |
184 | const AliCluster *c, Bool_t /*updated*/) { | |
185 | // | |
186 | // This function fills the histograms of residuals | |
187 | // The array of these histos is external for this AliTracker class. | |
188 | // Normally, this array belong to AliGlobalQADataMaker class. | |
189 | // | |
190 | // For the moment, the residuals are absolute ! | |
191 | // | |
192 | ||
193 | if (!fFillResiduals) return; | |
194 | if (!fResiduals) return; | |
195 | ||
196 | UShort_t id=c->GetVolumeId(); | |
197 | const TGeoHMatrix *matrixT2L=AliGeomManager::GetTracking2LocalMatrix(id); | |
198 | ||
199 | // Position of the cluster in the tracking c.s. | |
200 | Double_t clsTrk[3]={c->GetX(), c->GetY(), c->GetZ()}; | |
201 | // Position of the cluster in the local module c.s. | |
202 | Double_t clsLoc[3]={0.,0.,0.}; | |
203 | matrixT2L->LocalToMaster(clsTrk,clsLoc); | |
204 | ||
205 | ||
206 | // Position of the intersection point in the tracking c.s. | |
207 | Double_t trkTrk[3]={t->GetX(),t->GetY(),t->GetZ()}; | |
208 | // Position of the intersection point in the local module c.s. | |
209 | Double_t trkLoc[3]={0.,0.,0.}; | |
210 | matrixT2L->LocalToMaster(trkTrk,trkLoc); | |
211 | ||
212 | Double_t residuals[2]={trkLoc[0]-clsLoc[0], trkLoc[2]-clsLoc[2]}; | |
213 | ||
214 | TH1F *h=0; | |
eca4fa66 | 215 | Int_t esIndex = AliRecoParam::AConvert(fEventSpecie) ; |
9efabefd | 216 | AliGeomManager::ELayerID layer=AliGeomManager::VolUIDToLayer(id); |
eca4fa66 | 217 | h=(TH1F*)fResiduals[esIndex]->At(2*layer-2); |
74e15cf4 | 218 | if (h) h->Fill(residuals[0]); |
eca4fa66 | 219 | h=(TH1F*)fResiduals[esIndex]->At(2*layer-1); |
74e15cf4 | 220 | if (h) h->Fill(residuals[1]); |
9efabefd | 221 | |
222 | } | |
237adab4 | 223 |