| 275a301c |
1 | /************************************************************************** |
| 2 | * Copyright(c) 2007-2009, 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 | **************************************************************************/ |
| 275a301c |
15 | //____________________________________________________________________ |
| 84161aec |
16 | // |
| 275a301c |
17 | // AliITSTrackleterSPDEff - find SPD chips efficiencies by using tracklets. |
| 84161aec |
18 | // |
| 19 | // This class has been developed from AliITSMultReconstructor (see |
| 20 | // it for more details). It is the class for the Trackleter used to estimate |
| 21 | // SPD plane efficiency. |
| 275a301c |
22 | // The trackleter prediction is built using the vertex and 1 cluster. |
| 23 | // |
| 84161aec |
24 | // |
| 275a301c |
25 | // Author : Giuseppe Eugenio Bruno, based on the skeleton of Reconstruct method provided by Tiziano Virgili |
| 26 | // email: giuseppe.bruno@ba.infn.it |
| 84161aec |
27 | // |
| 275a301c |
28 | //____________________________________________________________________ |
| 29 | |
| 84161aec |
30 | /* $Id$ */ |
| 31 | |
| 275a301c |
32 | #include <TFile.h> |
| a3b31967 |
33 | #include <TTree.h> |
| 275a301c |
34 | #include <TParticle.h> |
| 35 | #include <TSystem.h> |
| 36 | #include <Riostream.h> |
| a3b31967 |
37 | #include <TClonesArray.h> |
| 275a301c |
38 | |
| 39 | #include "AliITSMultReconstructor.h" |
| 40 | #include "AliITSTrackleterSPDEff.h" |
| 41 | #include "AliITSgeomTGeo.h" |
| 42 | #include "AliLog.h" |
| 43 | #include "AliITSPlaneEffSPD.h" |
| 44 | #include "AliStack.h" |
| a3b31967 |
45 | #include "AliTrackReference.h" |
| 275a301c |
46 | |
| 47 | //____________________________________________________________________ |
| 48 | ClassImp(AliITSTrackleterSPDEff) |
| 49 | |
| 50 | |
| 51 | //____________________________________________________________________ |
| 52 | AliITSTrackleterSPDEff::AliITSTrackleterSPDEff(): |
| 53 | AliITSMultReconstructor(), |
| 54 | fAssociationFlag1(0), |
| 55 | fChipPredOnLay2(0), |
| 56 | fChipPredOnLay1(0), |
| 57 | fNTracklets1(0), |
| 58 | fPhiWindowL1(0), |
| 59 | fZetaWindowL1(0), |
| 60 | fOnlyOneTrackletPerC1(0), |
| a3b31967 |
61 | fUpdateOncePerEventPlaneEff(0), |
| 62 | fChipUpdatedInEvent(0), |
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63 | fPlaneEffSPD(0), |
| 0fce916f |
64 | fReflectClusterAroundZAxisForLayer0(kFALSE), |
| 65 | fReflectClusterAroundZAxisForLayer1(kFALSE), |
| 275a301c |
66 | fMC(0), |
| 67 | fUseOnlyPrimaryForPred(0), |
| 68 | fUseOnlySecondaryForPred(0), |
| 69 | fUseOnlySameParticle(0), |
| 70 | fUseOnlyDifferentParticle(0), |
| 71 | fUseOnlyStableParticle(0), |
| 72 | fPredictionPrimary(0), |
| 73 | fPredictionSecondary(0), |
| 74 | fClusterPrimary(0), |
| 75 | fClusterSecondary(0), |
| a3b31967 |
76 | fSuccessPP(0), |
| 77 | fSuccessTT(0), |
| 78 | fSuccessS(0), |
| 79 | fSuccessP(0), |
| 80 | fFailureS(0), |
| 81 | fFailureP(0), |
| 82 | fRecons(0), |
| 83 | fNonRecons(0), |
| 275a301c |
84 | fhClustersDPhiInterpAcc(0), |
| 85 | fhClustersDThetaInterpAcc(0), |
| 86 | fhClustersDZetaInterpAcc(0), |
| 87 | fhClustersDPhiInterpAll(0), |
| 88 | fhClustersDThetaInterpAll(0), |
| 89 | fhClustersDZetaInterpAll(0), |
| 90 | fhDPhiVsDThetaInterpAll(0), |
| 91 | fhDPhiVsDThetaInterpAcc(0), |
| 92 | fhDPhiVsDZetaInterpAll(0), |
| 93 | fhDPhiVsDZetaInterpAcc(0), |
| 94 | fhetaClustersLay2(0), |
| 95 | fhphiClustersLay2(0) |
| 96 | { |
| 84161aec |
97 | // default constructor |
| 275a301c |
98 | |
| 99 | SetPhiWindowL1(); |
| 100 | SetZetaWindowL1(); |
| 101 | SetOnlyOneTrackletPerC1(); |
| 102 | |
| 103 | fAssociationFlag1 = new Bool_t[300000]; |
| 104 | fChipPredOnLay2 = new UInt_t[300000]; |
| 105 | fChipPredOnLay1 = new UInt_t[300000]; |
| a3b31967 |
106 | fChipUpdatedInEvent = new Bool_t[1200]; |
| 275a301c |
107 | |
| 108 | for(Int_t i=0; i<300000; i++) { |
| 109 | fAssociationFlag1[i] = kFALSE; |
| 110 | } |
| a3b31967 |
111 | for(Int_t i=0;i<1200; i++) fChipUpdatedInEvent[i] = kFALSE; |
| 275a301c |
112 | |
| 113 | if (GetHistOn()) BookHistos(); |
| 114 | |
| 115 | fPlaneEffSPD = new AliITSPlaneEffSPD(); |
| 116 | } |
| 117 | //______________________________________________________________________ |
| 118 | AliITSTrackleterSPDEff::AliITSTrackleterSPDEff(const AliITSTrackleterSPDEff &mr) : AliITSMultReconstructor(mr), |
| 119 | fAssociationFlag1(mr.fAssociationFlag1), |
| 120 | fChipPredOnLay2(mr.fChipPredOnLay2), |
| 121 | fChipPredOnLay1(mr.fChipPredOnLay1), |
| 122 | fNTracklets1(mr.fNTracklets1), |
| 123 | fPhiWindowL1(mr.fPhiWindowL1), |
| 124 | fZetaWindowL1(mr.fZetaWindowL1), |
| 125 | fOnlyOneTrackletPerC1(mr.fOnlyOneTrackletPerC1), |
| a3b31967 |
126 | fUpdateOncePerEventPlaneEff(mr.fUpdateOncePerEventPlaneEff), |
| 127 | fChipUpdatedInEvent(mr.fChipUpdatedInEvent), |
| 275a301c |
128 | fPlaneEffSPD(mr.fPlaneEffSPD), |
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129 | fReflectClusterAroundZAxisForLayer0(mr.fReflectClusterAroundZAxisForLayer0), |
| 130 | fReflectClusterAroundZAxisForLayer1(mr.fReflectClusterAroundZAxisForLayer1), |
| 275a301c |
131 | fMC(mr.fMC), |
| 132 | fUseOnlyPrimaryForPred(mr.fUseOnlyPrimaryForPred), |
| 133 | fUseOnlySecondaryForPred(mr.fUseOnlySecondaryForPred), |
| 134 | fUseOnlySameParticle(mr.fUseOnlySameParticle), |
| 135 | fUseOnlyDifferentParticle(mr.fUseOnlyDifferentParticle), |
| 136 | fUseOnlyStableParticle(mr.fUseOnlyStableParticle), |
| 137 | fPredictionPrimary(mr.fPredictionPrimary), |
| 138 | fPredictionSecondary(mr.fPredictionSecondary), |
| 139 | fClusterPrimary(mr.fClusterPrimary), |
| 140 | fClusterSecondary(mr.fClusterSecondary), |
| a3b31967 |
141 | fSuccessPP(mr.fSuccessPP), |
| 142 | fSuccessTT(mr.fSuccessTT), |
| 143 | fSuccessS(mr.fSuccessS), |
| 144 | fSuccessP(mr.fSuccessP), |
| 145 | fFailureS(mr.fFailureS), |
| 146 | fFailureP(mr.fFailureP), |
| 147 | fRecons(mr.fRecons), |
| 148 | fNonRecons(mr.fNonRecons), |
| 275a301c |
149 | fhClustersDPhiInterpAcc(mr.fhClustersDPhiInterpAcc), |
| 150 | fhClustersDThetaInterpAcc(mr.fhClustersDThetaInterpAcc), |
| 151 | fhClustersDZetaInterpAcc(mr.fhClustersDZetaInterpAcc), |
| 152 | fhClustersDPhiInterpAll(mr.fhClustersDPhiInterpAll), |
| 153 | fhClustersDThetaInterpAll(mr.fhClustersDThetaInterpAll), |
| 154 | fhClustersDZetaInterpAll(mr.fhClustersDZetaInterpAll), |
| 155 | fhDPhiVsDThetaInterpAll(mr.fhDPhiVsDThetaInterpAll), |
| 156 | fhDPhiVsDThetaInterpAcc(mr.fhDPhiVsDThetaInterpAcc), |
| 157 | fhDPhiVsDZetaInterpAll(mr.fhDPhiVsDZetaInterpAll), |
| 158 | fhDPhiVsDZetaInterpAcc(mr.fhDPhiVsDZetaInterpAcc), |
| 159 | fhetaClustersLay2(mr.fhetaClustersLay2), |
| 160 | fhphiClustersLay2(mr.fhphiClustersLay2) |
| 161 | { |
| 162 | // Copy constructor |
| 163 | } |
| 164 | |
| 165 | //______________________________________________________________________ |
| 166 | AliITSTrackleterSPDEff& AliITSTrackleterSPDEff::operator=(const AliITSTrackleterSPDEff& mr){ |
| 167 | // Assignment operator |
| 168 | this->~AliITSTrackleterSPDEff(); |
| 169 | new(this) AliITSTrackleterSPDEff(mr); |
| 170 | return *this; |
| 171 | } |
| 172 | //______________________________________________________________________ |
| 173 | AliITSTrackleterSPDEff::~AliITSTrackleterSPDEff(){ |
| 174 | // Destructor |
| 175 | |
| 176 | // delete histograms |
| 177 | DeleteHistos(); |
| 178 | |
| 179 | delete [] fAssociationFlag1; |
| 180 | |
| 181 | delete [] fChipPredOnLay2; |
| 182 | delete [] fChipPredOnLay1; |
| 183 | |
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184 | delete [] fChipUpdatedInEvent; |
| 185 | |
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186 | delete [] fPredictionPrimary; |
| 187 | delete [] fPredictionSecondary; |
| 188 | delete [] fClusterPrimary; |
| 189 | delete [] fClusterSecondary; |
| a3b31967 |
190 | delete [] fSuccessPP; |
| 191 | delete [] fSuccessTT; |
| 192 | delete [] fSuccessS; |
| 193 | delete [] fSuccessP; |
| 194 | delete [] fFailureS; |
| 195 | delete [] fFailureP; |
| 196 | delete [] fRecons; |
| 197 | delete [] fNonRecons; |
| 275a301c |
198 | |
| 199 | // delete PlaneEff |
| 200 | delete fPlaneEffSPD; |
| 201 | } |
| 202 | //____________________________________________________________________ |
| 203 | void |
| a3b31967 |
204 | AliITSTrackleterSPDEff::Reconstruct(TTree* clusterTree, Float_t* vtx, Float_t*, AliStack *pStack, TTree *tRef) { |
| 275a301c |
205 | // |
| 206 | // - calls LoadClusterArray that finds the position of the clusters |
| 207 | // (in global coord) |
| 208 | // - convert the cluster coordinates to theta, phi (seen from the |
| 209 | // interaction vertex). Find the extrapolation/interpolation point. |
| 210 | // - Find the chip corresponding to that |
| 211 | // - Check if there is a cluster near that point |
| 212 | // |
| 213 | |
| 214 | // reset counters |
| 215 | fNClustersLay1 = 0; |
| 216 | fNClustersLay2 = 0; |
| 217 | fNTracklets = 0; |
| 218 | fNSingleCluster = 0; |
| 219 | // loading the clusters |
| 220 | LoadClusterArrays(clusterTree); |
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221 | // to study residual background (i.e. contribution from TT' to measured efficiency) |
| 222 | if(fReflectClusterAroundZAxisForLayer0) ReflectClusterAroundZAxisForLayer(0); |
| 223 | if(fReflectClusterAroundZAxisForLayer1) ReflectClusterAroundZAxisForLayer(1); |
| 224 | // |
| 275a301c |
225 | if(fMC && !pStack) {AliError("You asked for MC infos but AliStack not properly loaded"); return;} |
| a3b31967 |
226 | if(fMC && !tRef) {AliError("You asked for MC infos but TrackRef Tree not properly loaded"); return;} |
| 275a301c |
227 | Bool_t found; |
| 228 | Int_t nfTraPred1=0; Int_t ntTraPred1=0; |
| 229 | Int_t nfTraPred2=0; Int_t ntTraPred2=0; |
| 230 | Int_t nfClu1=0; Int_t ntClu1=0; |
| 231 | Int_t nfClu2=0; Int_t ntClu2=0; |
| 232 | |
| a3b31967 |
233 | // Set fChipUpdatedInEvent=kFALSE for all the chips (none of the chip efficiency already updated |
| 234 | // for this new event) |
| 235 | for(Int_t i=0;i<1200;i++) fChipUpdatedInEvent[i] = kFALSE; |
| 275a301c |
236 | |
| 237 | // find the tracklets |
| 238 | AliDebug(1,"Looking for tracklets... "); |
| 239 | AliDebug(1,Form("Reconstruct: vtx[0] = %f, vtx[1] = %f, vtx[2] = %f",vtx[0],vtx[1],vtx[2])); |
| 240 | |
| 241 | //########################################################### |
| 242 | // Loop on layer 1 : finding theta, phi and z |
| 243 | UInt_t key; |
| 244 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { |
| 245 | Float_t x = fClustersLay1[iC1][0] - vtx[0]; |
| 246 | Float_t y = fClustersLay1[iC1][1] - vtx[1]; |
| 247 | Float_t z = fClustersLay1[iC1][2] - vtx[2]; |
| 248 | |
| 249 | Float_t r = TMath::Sqrt(x*x + y*y +z*z); |
| 250 | |
| 251 | fClustersLay1[iC1][0] = TMath::ACos(z/r); // Store Theta |
| 252 | fClustersLay1[iC1][1] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi |
| 253 | fClustersLay1[iC1][2] = z; // Store z |
| 254 | |
| 255 | // find the Radius and the chip corresponding to the extrapolation point |
| 256 | |
| 257 | found=FindChip(key, 1, vtx, fClustersLay1[iC1][0],fClustersLay1[iC1][1]); |
| 258 | if (!found) { |
| 259 | AliDebug(1,Form("Reconstruct: cannot find chip prediction on outer layer for cluster %d on the inner layer",iC1)); |
| 260 | key=999999; // also some other actions should be taken if not Found |
| 261 | } |
| 262 | nfTraPred2+=(Int_t)found; // this for debugging purpose |
| 263 | ntTraPred2++; // to check efficiency of the method FindChip |
| 264 | fChipPredOnLay2[iC1] = key; |
| 265 | fAssociationFlag1[iC1] = kFALSE; |
| 266 | |
| 267 | if (fHistOn) { |
| 268 | Float_t eta=fClustersLay1[iC1][0]; |
| 269 | eta= TMath::Tan(eta/2.); |
| 270 | eta=-TMath::Log(eta); |
| 271 | fhetaClustersLay1->Fill(eta); |
| 272 | fhphiClustersLay1->Fill(fClustersLay1[iC1][1]); |
| 273 | } |
| 274 | } |
| 275a301c |
275 | // Loop on layer 2 : finding theta, phi and r |
| 276 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { |
| 277 | Float_t x = fClustersLay2[iC2][0] - vtx[0]; |
| 278 | Float_t y = fClustersLay2[iC2][1] - vtx[1]; |
| 279 | Float_t z = fClustersLay2[iC2][2] - vtx[2]; |
| 280 | |
| 281 | Float_t r = TMath::Sqrt(x*x + y*y +z*z); |
| 282 | |
| 283 | fClustersLay2[iC2][0] = TMath::ACos(z/r); // Store Theta |
| 284 | fClustersLay2[iC2][1] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi (done properly in the range [0,2pi]) |
| 285 | fClustersLay2[iC2][2] = z; // Store z |
| 286 | |
| 287 | // find the Radius and the chip corresponding to the extrapolation point |
| 288 | |
| 289 | found=FindChip(key, 0, vtx, fClustersLay2[iC2][0],fClustersLay2[iC2][1]); |
| 290 | if (!found) { |
| 291 | AliWarning(Form("Reconstruct: cannot find chip prediction on inner layer for cluster %d on the outer layer",iC2)); |
| 292 | key=999999; |
| 293 | } |
| 294 | nfTraPred1+=(Int_t)found; // this for debugging purpose |
| 295 | ntTraPred1++; // to check efficiency of the method FindChip |
| 296 | fChipPredOnLay1[iC2] = key; |
| 297 | fAssociationFlag[iC2] = kFALSE; |
| 298 | |
| 299 | if (fHistOn) { |
| 300 | Float_t eta=fClustersLay2[iC2][0]; |
| 301 | eta= TMath::Tan(eta/2.); |
| 302 | eta=-TMath::Log(eta); |
| 303 | fhetaClustersLay2->Fill(eta); |
| 304 | fhphiClustersLay2->Fill(fClustersLay2[iC2][1]); |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | //########################################################### |
| 309 | |
| 310 | // First part : Extrapolation to Layer 2 |
| 311 | |
| 312 | // Loop on layer 1 |
| 313 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { |
| 314 | |
| a3b31967 |
315 | // here the control to check whether the efficiency of the chip traversed by this tracklet |
| 316 | // prediction has already been updated in this event using another tracklet prediction |
| 317 | if(fUpdateOncePerEventPlaneEff && fChipPredOnLay2[iC1]<1200 && fChipUpdatedInEvent[fChipPredOnLay2[iC1]]) continue; |
| 318 | |
| 275a301c |
319 | // reset of variables for multiple candidates |
| 320 | Int_t iC2WithBestDist = 0; // reset |
| 321 | Float_t distmin = 100.; // just to put a huge number! |
| 322 | Float_t dPhimin = 0.; // Used for histograms only! |
| 323 | Float_t dThetamin = 0.; // Used for histograms only! |
| 324 | Float_t dZetamin = 0.; // Used for histograms only! |
| 325 | |
| 326 | // in any case, if MC has been required, store statistics of primaries and secondaries |
| a3b31967 |
327 | Bool_t primary=kFALSE; Bool_t secondary=kFALSE; // it is better to have both since chip might not be found |
| 275a301c |
328 | if (fMC) { |
| 329 | Int_t lab1=(Int_t)fClustersLay1[iC1][3]; |
| 330 | Int_t lab2=(Int_t)fClustersLay1[iC1][4]; |
| 331 | Int_t lab3=(Int_t)fClustersLay1[iC1][5]; |
| 332 | // do it always as a function of the chip number used to built the prediction |
| 333 | found=FindChip(key,0,vtx,fClustersLay1[iC1][0],fClustersLay1[iC1][1],fClustersLay1[iC1][2]); |
| 334 | if (!found) {AliWarning( |
| 335 | Form("Reconstruct MC: cannot find chip on inner layer for cluster %d",iC1)); } |
| 336 | else { |
| 337 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || |
| 338 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || |
| 339 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) |
| 340 | { // this cluster is from a primary particle |
| 341 | fClusterPrimary[key]++; |
| a3b31967 |
342 | primary=kTRUE; |
| 275a301c |
343 | if(fUseOnlySecondaryForPred) continue; // skip this tracklet built with a primary track |
| 344 | } else { // this cluster is from a secondary particle |
| 345 | fClusterSecondary[key]++; |
| a3b31967 |
346 | secondary=kTRUE; |
| 275a301c |
347 | if(fUseOnlyPrimaryForPred) continue; // skip this tracklet built with a secondary track |
| 348 | } |
| 349 | } |
| 350 | // do it as a function of the chip number where you exspect the cluster (i.e. tracklet prediction) |
| 351 | // (in case the prediction is reliable) |
| 352 | if( fChipPredOnLay2[iC1]<1200) { |
| 353 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || |
| 354 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || |
| 355 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) fPredictionPrimary[fChipPredOnLay2[iC1]]++; |
| 356 | else fPredictionSecondary[fChipPredOnLay2[iC1]]++; |
| a3b31967 |
357 | if((lab1 != -2 && IsReconstructableAt(1,iC1,lab1,vtx,pStack,tRef)) || |
| 358 | (lab2 != -2 && IsReconstructableAt(1,iC1,lab2,vtx,pStack,tRef)) || |
| 359 | (lab3 != -2 && IsReconstructableAt(1,iC1,lab3,vtx,pStack,tRef))) fRecons[fChipPredOnLay2[iC1]]++; |
| 360 | else fNonRecons[fChipPredOnLay2[iC1]]++; |
| 275a301c |
361 | } |
| 362 | } |
| 363 | |
| 364 | // Loop on layer 2 |
| 365 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { |
| 366 | |
| 367 | // The following excludes double associations |
| 368 | if (!fAssociationFlag[iC2]) { |
| 369 | |
| 370 | // find the difference in angles |
| 371 | Float_t dTheta = fClustersLay2[iC2][0] - fClustersLay1[iC1][0]; |
| 372 | Float_t dPhi = TMath::Abs(fClustersLay2[iC2][1] - fClustersLay1[iC1][1]); |
| 373 | // take into account boundary condition |
| 374 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; |
| 375 | |
| 376 | // find the difference in z (between linear projection from layer 1 |
| 377 | // and the actual point: Dzeta= z1/r1*r2 -z2) |
| 378 | Float_t r2 = fClustersLay2[iC2][2]/TMath::Cos(fClustersLay2[iC2][0]); |
| 379 | Float_t dZeta = TMath::Cos(fClustersLay1[iC1][0])*r2 - fClustersLay2[iC2][2]; |
| 380 | |
| 381 | if (fHistOn) { |
| 382 | fhClustersDPhiAll->Fill(dPhi); |
| 383 | fhClustersDThetaAll->Fill(dTheta); |
| 384 | fhClustersDZetaAll->Fill(dZeta); |
| 385 | fhDPhiVsDThetaAll->Fill(dTheta, dPhi); |
| 386 | fhDPhiVsDZetaAll->Fill(dZeta, dPhi); |
| 387 | } |
| 388 | |
| 389 | // make "elliptical" cut in Phi and Zeta! |
| 390 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindow/fPhiWindow + |
| 391 | dZeta*dZeta/fZetaWindow/fZetaWindow); |
| 392 | |
| 393 | if (d>1) continue; |
| 394 | |
| 395 | //look for the minimum distance: the minimum is in iC2WithBestDist |
| 396 | if (TMath::Sqrt(dZeta*dZeta+(r2*dPhi*r2*dPhi)) < distmin ) { |
| 397 | distmin=TMath::Sqrt(dZeta*dZeta + (r2*dPhi*r2*dPhi)); |
| 398 | dPhimin = dPhi; |
| 399 | dThetamin = dTheta; |
| 400 | dZetamin = dZeta; |
| 401 | iC2WithBestDist = iC2; |
| 402 | } |
| 403 | } |
| 404 | } // end of loop over clusters in layer 2 |
| 405 | |
| 406 | if (distmin<100) { // This means that a cluster in layer 2 was found that matches with iC1 |
| 407 | |
| 408 | if (fHistOn) { |
| 409 | fhClustersDPhiAcc->Fill(dPhimin); |
| 410 | fhClustersDThetaAcc->Fill(dThetamin); |
| 411 | fhClustersDZetaAcc->Fill(dZetamin); |
| 412 | fhDPhiVsDThetaAcc->Fill(dThetamin, dPhimin); |
| 413 | fhDPhiVsDZetaAcc->Fill(dZetamin, dPhimin); |
| 414 | } |
| 415 | |
| 416 | if (fOnlyOneTrackletPerC2) fAssociationFlag[iC2WithBestDist] = kTRUE; |
| 417 | // flag the association |
| 418 | |
| 419 | // store the tracklet |
| 420 | |
| 421 | // use the theta from the clusters in the first layer |
| 422 | fTracklets[fNTracklets][0] = fClustersLay1[iC1][0]; |
| 423 | // use the phi from the clusters in the first layer |
| 424 | fTracklets[fNTracklets][1] = fClustersLay1[iC1][1]; |
| 425 | // Store the difference between phi1 and phi2 |
| 426 | fTracklets[fNTracklets][2] = fClustersLay1[iC1][1] - fClustersLay2[iC2WithBestDist][1]; |
| 427 | |
| 428 | // find labels |
| 429 | Int_t label1 = 0; |
| 430 | Int_t label2 = 0; |
| 431 | while (label2 < 3) |
| 432 | { |
| 433 | if ((Int_t) fClustersLay1[iC1][3+label1] != -2 && (Int_t) fClustersLay1[iC1][3+label1] == (Int_t) fClustersLay2[iC2WithBestDist][3+label2]) |
| 434 | break; |
| 435 | label1++; |
| 436 | if (label1 == 3) |
| 437 | { |
| 438 | label1 = 0; |
| 439 | label2++; |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | if (label2 < 3) |
| 444 | { |
| 445 | fTracklets[fNTracklets][3] = fClustersLay1[iC1][3+label1]; |
| 446 | } |
| 447 | else |
| 448 | { |
| 449 | fTracklets[fNTracklets][3] = -2; |
| 450 | } |
| 451 | |
| 452 | if (fHistOn) { |
| 453 | Float_t eta=fTracklets[fNTracklets][0]; |
| 454 | eta= TMath::Tan(eta/2.); |
| 455 | eta=-TMath::Log(eta); |
| 456 | fhetaTracklets->Fill(eta); |
| 457 | fhphiTracklets->Fill(fTracklets[fNTracklets][1]); |
| 458 | } |
| 459 | |
| 460 | // Check that this cluster is still in the same chip (here you pass also Zvtx for better computation) |
| 461 | found=FindChip(key,1,vtx,fClustersLay2[iC2WithBestDist][0],fClustersLay2[iC2WithBestDist][1],fClustersLay2[iC2WithBestDist][2]); |
| 462 | if(!found){ |
| 463 | AliWarning( |
| 464 | Form("Reconstruct: cannot find chip on outer layer for cluster %d",iC2WithBestDist)); |
| 465 | key=999999; |
| 466 | } |
| 467 | nfClu2+=(Int_t)found; // this for debugging purpose |
| 468 | ntClu2++; // to check efficiency of the method FindChip |
| 469 | if(key<1200) { // the Chip has been found |
| 470 | if(fMC) { // this part only for MC |
| 471 | // Int_t labc1=(Int_t)fClustersLay2[iC2WithBestDist][3]; |
| 472 | // Int_t labc2=(Int_t)fClustersLay2[iC2WithBestDist][4]; |
| 473 | // Int_t labc3=(Int_t)fClustersLay2[iC2WithBestDist][5]; |
| a3b31967 |
474 | if (label2 < 3) { |
| 475 | fSuccessTT[key]++; |
| 476 | if(primary) fSuccessPP[key]++; |
| 477 | } |
| 275a301c |
478 | if (fUseOnlyDifferentParticle && label2 < 3) continue; // same label (reject it) |
| 479 | if (fUseOnlySameParticle && label2 == 3) continue; // different label (reject it) |
| 480 | } |
| 481 | |
| 482 | if (key==fChipPredOnLay2[iC1]) { // this control seems too loose: has to be checked ! |
| a3b31967 |
483 | // OK, success |
| 275a301c |
484 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // success |
| a3b31967 |
485 | fChipUpdatedInEvent[key]=kTRUE; |
| 486 | if(fMC) { |
| 487 | if(primary) fSuccessP[key]++; |
| 488 | if(secondary) fSuccessS[key]++; |
| 489 | } |
| 275a301c |
490 | } |
| 491 | else { |
| 492 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // this should not be a failure |
| a3b31967 |
493 | fChipUpdatedInEvent[key]=kTRUE; // (might be in the tracking tollerance) |
| 494 | if(fMC) { |
| 495 | if(primary) fSuccessP[key]++; |
| 496 | if(secondary) fSuccessS[key]++; |
| 497 | } |
| 275a301c |
498 | } |
| 499 | } |
| 500 | |
| 501 | fNTracklets++; |
| 502 | |
| 503 | } // if any cluster found --> increment statistics by 1 failure (provided you have chip prediction) |
| a3b31967 |
504 | else if (fChipPredOnLay2[iC1]<1200) { |
| 505 | fPlaneEffSPD->UpDatePlaneEff(kFALSE,fChipPredOnLay2[iC1]); |
| 506 | fChipUpdatedInEvent[fChipPredOnLay2[iC1]]=kTRUE; |
| 507 | if(fMC) { |
| 508 | if(primary) fFailureP[fChipPredOnLay2[iC1]]++; |
| 509 | if(secondary) fFailureS[fChipPredOnLay2[iC1]]++; |
| 510 | } |
| 511 | } |
| 275a301c |
512 | } // end of loop over clusters in layer 1 |
| 513 | |
| 514 | fNTracklets1=fNTracklets; |
| 515 | |
| 516 | //################################################################### |
| 517 | |
| 518 | // Second part : Interpolation to Layer 1 |
| 519 | |
| 520 | // Loop on layer 2 |
| 521 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { |
| 522 | |
| a3b31967 |
523 | // here the control to check whether the efficiency of the chip traversed by this tracklet |
| 524 | // prediction has already been updated in this event using another tracklet prediction |
| 525 | if(fUpdateOncePerEventPlaneEff && fChipPredOnLay1[iC2]<1200 && fChipUpdatedInEvent[fChipPredOnLay1[iC2]]) continue; |
| 526 | |
| 275a301c |
527 | // reset of variables for multiple candidates |
| 528 | Int_t iC1WithBestDist = 0; // reset |
| 529 | Float_t distmin = 100.; // just to put a huge number! |
| 530 | Float_t dPhimin = 0.; // Used for histograms only! |
| 531 | Float_t dThetamin = 0.; // Used for histograms only! |
| 532 | Float_t dZetamin = 0.; // Used for histograms only! |
| 533 | |
| 534 | // in any case, if MC has been required, store statistics of primaries and secondaries |
| a3b31967 |
535 | Bool_t primary=kFALSE; Bool_t secondary=kFALSE; |
| 275a301c |
536 | if (fMC) { |
| 537 | Int_t lab1=(Int_t)fClustersLay2[iC2][3]; |
| 538 | Int_t lab2=(Int_t)fClustersLay2[iC2][4]; |
| 539 | Int_t lab3=(Int_t)fClustersLay2[iC2][5]; |
| 540 | // do it always as a function of the chip number used to built the prediction |
| 541 | found=FindChip(key,1,vtx,fClustersLay2[iC2][0],fClustersLay2[iC2][1],fClustersLay2[iC2][2]); |
| 542 | if (!found) {AliWarning( |
| 543 | Form("Reconstruct MC: cannot find chip on outer layer for cluster %d",iC2)); } |
| 544 | else { |
| 545 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || |
| 546 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || |
| 547 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) |
| 548 | { // this cluster is from a primary particle |
| 549 | fClusterPrimary[key]++; |
| a3b31967 |
550 | primary=kTRUE; |
| 275a301c |
551 | if(fUseOnlySecondaryForPred) continue; // skip this tracklet built with a primary track |
| 552 | } else { // this cluster is from a secondary particle |
| 553 | fClusterSecondary[key]++; |
| a3b31967 |
554 | secondary=kTRUE; |
| 275a301c |
555 | if(fUseOnlyPrimaryForPred) continue; // skip this tracklet built with a secondary track |
| 556 | } |
| 557 | } |
| 558 | // do it as a function of the chip number where you exspect the cluster (i.e. tracklet prediction) |
| 559 | // (in case the prediction is reliable) |
| 560 | if( fChipPredOnLay1[iC2]<1200) { |
| 561 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || |
| 562 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || |
| 563 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) fPredictionPrimary[fChipPredOnLay1[iC2]]++; |
| 564 | else fPredictionSecondary[fChipPredOnLay1[iC2]]++; |
| a3b31967 |
565 | if((lab1 != -2 && IsReconstructableAt(0,iC2,lab1,vtx,pStack,tRef)) || |
| 566 | (lab2 != -2 && IsReconstructableAt(0,iC2,lab2,vtx,pStack,tRef)) || |
| 567 | (lab3 != -2 && IsReconstructableAt(0,iC2,lab3,vtx,pStack,tRef))) fRecons[fChipPredOnLay1[iC2]]++; |
| 568 | else fNonRecons[fChipPredOnLay1[iC2]]++; |
| 275a301c |
569 | } |
| 570 | } |
| 571 | |
| 572 | // Loop on layer 1 |
| 573 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { |
| 574 | |
| 575 | // The following excludes double associations |
| 576 | if (!fAssociationFlag1[iC1]) { |
| 577 | |
| 578 | // find the difference in angles |
| 579 | Float_t dTheta = fClustersLay2[iC2][0] - fClustersLay1[iC1][0]; |
| 580 | Float_t dPhi = TMath::Abs(fClustersLay2[iC2][1] - fClustersLay1[iC1][1]); |
| 581 | // take into account boundary condition |
| 582 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; |
| 583 | |
| 584 | |
| 585 | // find the difference in z (between linear projection from layer 2 |
| 586 | // and the actual point: Dzeta= z2/r2*r1 -z1) |
| 587 | Float_t r1 = fClustersLay1[iC1][2]/TMath::Cos(fClustersLay1[iC1][0]); |
| 588 | Float_t dZeta = TMath::Cos(fClustersLay2[iC2][0])*r1 - fClustersLay1[iC1][2]; |
| 589 | |
| 590 | |
| 591 | if (fHistOn) { |
| 592 | fhClustersDPhiInterpAll->Fill(dPhi); |
| 593 | fhClustersDThetaInterpAll->Fill(dTheta); |
| 594 | fhClustersDZetaInterpAll->Fill(dZeta); |
| 595 | fhDPhiVsDThetaInterpAll->Fill(dTheta, dPhi); |
| 596 | fhDPhiVsDZetaInterpAll->Fill(dZeta, dPhi); |
| 597 | } |
| 598 | // make "elliptical" cut in Phi and Zeta! |
| 599 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindowL1/fPhiWindowL1 + |
| 600 | dZeta*dZeta/fZetaWindowL1/fZetaWindowL1); |
| 601 | |
| 602 | if (d>1) continue; |
| 603 | |
| 604 | //look for the minimum distance: the minimum is in iC1WithBestDist |
| 605 | if (TMath::Sqrt(dZeta*dZeta+(r1*dPhi*r1*dPhi)) < distmin ) { |
| 606 | distmin=TMath::Sqrt(dZeta*dZeta + (r1*dPhi*r1*dPhi)); |
| 607 | dPhimin = dPhi; |
| 608 | dThetamin = dTheta; |
| 609 | dZetamin = dZeta; |
| 610 | iC1WithBestDist = iC1; |
| 611 | } |
| 612 | } |
| 613 | } // end of loop over clusters in layer 1 |
| 614 | |
| a3b31967 |
615 | if (distmin<100) { // This means that a cluster in layer 1 was found that matches with iC2 |
| 275a301c |
616 | |
| 617 | if (fHistOn) { |
| 618 | fhClustersDPhiInterpAcc->Fill(dPhimin); |
| 619 | fhClustersDThetaInterpAcc->Fill(dThetamin); |
| 620 | fhClustersDZetaInterpAcc->Fill(dZetamin); |
| 621 | fhDPhiVsDThetaInterpAcc->Fill(dThetamin, dPhimin); |
| 622 | fhDPhiVsDZetaInterpAcc->Fill(dZetamin, dPhimin); |
| 623 | } |
| 624 | |
| 625 | if (fOnlyOneTrackletPerC1) fAssociationFlag1[iC1WithBestDist] = kTRUE; // flag the association |
| 626 | // flag the association |
| 627 | |
| 628 | // store the tracklet |
| 629 | |
| 630 | // use the theta from the clusters in the first layer |
| 631 | fTracklets[fNTracklets][0] = fClustersLay2[iC2][0]; |
| 632 | // use the phi from the clusters in the first layer |
| 633 | fTracklets[fNTracklets][1] = fClustersLay2[iC2][1]; |
| 634 | // Store the difference between phi1 and phi2 |
| 635 | fTracklets[fNTracklets][2] = fClustersLay2[iC2][1] - fClustersLay1[iC1WithBestDist][1]; |
| 636 | |
| 637 | // find labels |
| 638 | Int_t label1 = 0; |
| 639 | Int_t label2 = 0; |
| 640 | while (label2 < 3) |
| 641 | { |
| 642 | if ((Int_t) fClustersLay2[iC2][3+label1] != -2 && (Int_t) fClustersLay2[iC2][3+label1] == (Int_t) fClustersLay1[iC1WithBestDist][3+label2]) |
| 643 | break; |
| 644 | label1++; |
| 645 | if (label1 == 3) |
| 646 | { |
| 647 | label1 = 0; |
| 648 | label2++; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | if (label2 < 3) |
| 653 | { |
| 654 | fTracklets[fNTracklets][3] = fClustersLay2[iC2][3+label1]; |
| 655 | } |
| 656 | else |
| 657 | { |
| 658 | fTracklets[fNTracklets][3] = -2; |
| 659 | } |
| 660 | |
| 661 | // Check that this cluster is still in the same chip (here you pass also Zvtx for better computation) |
| 662 | found=FindChip(key,0,vtx,fClustersLay1[iC1WithBestDist][0],fClustersLay1[iC1WithBestDist][1],fClustersLay1[iC1WithBestDist][2]); |
| 663 | if(!found){ |
| 664 | AliWarning( |
| 665 | Form("Reconstruct: cannot find chip on inner layer for cluster %d",iC1WithBestDist)); |
| 666 | key=999999; |
| 667 | } |
| 668 | nfClu1+=(Int_t)found; // this for debugging purpose |
| 669 | ntClu1++; // to check efficiency of the method FindChip |
| 670 | if(key<1200) { |
| 671 | if(fMC) { // this part only for MC |
| 672 | // Int_t labc1=(Int_t)fClustersLay1[iC1WithBestDist][3]; |
| 673 | // Int_t labc2=(Int_t)fClustersLay1[iC1WithBestDist][4]; |
| 674 | // Int_t labc3=(Int_t)fClustersLay1[iC1WithBestDist][5]; |
| a3b31967 |
675 | if (label2 < 3) { // same label |
| 676 | fSuccessTT[key]++; |
| 677 | if(primary) fSuccessPP[key]++; |
| 678 | } |
| 275a301c |
679 | if (fUseOnlyDifferentParticle && label2 < 3) continue; // same label (reject it) |
| 680 | if (fUseOnlySameParticle && label2 == 3) continue; // different label (reject it) |
| 681 | } |
| 682 | |
| 683 | if (key==fChipPredOnLay1[iC2]) { // this control seems too loose: has to be checked ! |
| a3b31967 |
684 | // OK, success |
| 275a301c |
685 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // success |
| a3b31967 |
686 | fChipUpdatedInEvent[key]=kTRUE; |
| 687 | if(fMC) { |
| 688 | if(primary) fSuccessP[key]++; |
| 689 | if(secondary) fSuccessS[key]++; |
| 690 | } |
| 275a301c |
691 | } else { |
| 692 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // this should not be a failure |
| a3b31967 |
693 | fChipUpdatedInEvent[key]=kTRUE; // (might be in the tracking tollerance) |
| 694 | if(fMC) { |
| 695 | if(primary) fSuccessP[key]++; |
| 696 | if(secondary) fSuccessS[key]++; |
| 697 | } |
| 275a301c |
698 | } |
| 699 | } |
| 700 | |
| 701 | fNTracklets++; |
| 702 | |
| 703 | } // if no cluster found --> increment statistics by 1 failure (provided you have chip prediction) |
| a3b31967 |
704 | else if (fChipPredOnLay1[iC2]<1200) { |
| 705 | fPlaneEffSPD->UpDatePlaneEff(kFALSE,fChipPredOnLay1[iC2]); |
| 706 | fChipUpdatedInEvent[fChipPredOnLay1[iC2]]=kTRUE; |
| 707 | if(fMC) { |
| 708 | if(primary) fFailureP[fChipPredOnLay1[iC2]]++; |
| 709 | if(secondary) fFailureS[fChipPredOnLay1[iC2]]++; |
| 710 | } |
| 711 | } |
| 275a301c |
712 | } // end of loop over clusters in layer 2 |
| 713 | |
| 714 | AliDebug(1,Form("%d tracklets found", fNTracklets)); |
| 715 | AliDebug(1,Form(("Eff. of method FindChip for Track pred. on lay 1 = %d / %d"),nfTraPred1,ntTraPred1)); |
| 716 | AliDebug(1,Form(("Eff. of method FindChip for Track pred. on lay 2 = %d / %d"),nfTraPred2,ntTraPred2)); |
| 717 | AliDebug(1,Form(("Eff. of method FindChip for Cluster on lay 1 = %d / %d"),nfClu1,ntClu1)); |
| 718 | AliDebug(1,Form(("Eff. of method FindChip for Cluster on lay 2 = %d / %d"),nfClu2,ntClu2)); |
| 719 | } |
| 720 | //____________________________________________________________________ |
| 721 | Bool_t AliITSTrackleterSPDEff::FindChip(UInt_t &key, Int_t layer, Float_t* vtx, |
| 722 | Float_t thetaVtx, Float_t phiVtx, Float_t zVtx) { |
| 723 | // |
| 724 | // Input: a) layer number in the range [0,1] |
| 725 | // b) vtx[3]: actual vertex |
| 726 | // c) zVtx \ z of the cluster (-999 for tracklet) computed with respect to vtx |
| 727 | // d) thetaVtx > theta and phi of the cluster/tracklet computed with respect to vtx |
| 728 | // e) phiVtx / |
| 729 | // Output: Unique key to locate a chip |
| 730 | // return: kTRUE if succesfull |
| 731 | |
| 732 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return kFALSE;} |
| 733 | Double_t r=GetRLayer(layer); |
| 734 | //AliInfo(Form("Radius on layer %d is %f cm",layer,r)); |
| 735 | |
| 736 | // set phiVtx in the range [0,2pi] |
| 737 | if(!SetAngleRange02Pi(phiVtx)) return kFALSE ; |
| 738 | |
| 739 | Double_t zAbs,phiAbs; // those are the polar coordinate, in the Absolute ALICE Reference |
| 740 | // of the intersection of the tracklet with the pixel layer. |
| 741 | if (TMath::Abs(zVtx)<100) zAbs=zVtx + vtx[2]; // this is fine only for the cluster, not for the track prediction |
| 742 | else zAbs=r/TMath::Tan(thetaVtx) + vtx[2]; // this is the only way to do for the tracklet prediction |
| 743 | AliDebug(1,Form("FindChip: vtx[0] = %f, vtx[1] = %f, vtx[2] = %f",vtx[0],vtx[1],vtx[2])); |
| 744 | Double_t vtxy[2]={vtx[0],vtx[1]}; |
| 745 | if (vtxy[0]*vtxy[1]+vtxy[1]*vtxy[1]>0) { // this method holds only for displaced vertices |
| 746 | // this method gives you two interceptions |
| 747 | if (!FindIntersectionPolar(vtxy,(Double_t)phiVtx,r,phiAbs)) return kFALSE; |
| 748 | // set phiAbs in the range [0,2pi] |
| 749 | if(!SetAngleRange02Pi(phiAbs)) return kFALSE; |
| 750 | // since Vtx is very close to the ALICE origin, then phiVtx and phiAbs are very close; |
| 751 | // therofore you can select the right intersection (among phiAbs1 and phiAbs2) by |
| 752 | // taking the closest one to phiVtx |
| 753 | AliDebug(1,Form("PhiVtx= %f, PhiAbs= %f",phiVtx,phiAbs)); |
| 754 | } else phiAbs=phiVtx; |
| 755 | Int_t idet=FindDetectorIndex(layer,phiAbs,zAbs); // this is the detector number |
| 756 | |
| 757 | // now you need to locate the chip within the idet detector, |
| 758 | // starting from the local coordinates in such a detector |
| 759 | |
| 760 | Float_t locx; // local Cartesian coordinate (to be determined) corresponding to |
| 761 | Float_t locz; // the Global Cilindrica coordinate (r,phiAbs,zAbs) . |
| 762 | if(!FromGloCilToLocCart(layer,idet,r,phiAbs,zAbs, locx, locz)) return kFALSE; |
| 763 | |
| 764 | key=fPlaneEffSPD->GetKeyFromDetLocCoord(layer,idet,locx,locz); |
| 765 | return kTRUE; |
| 766 | } |
| 767 | //______________________________________________________________________________ |
| 768 | Double_t AliITSTrackleterSPDEff::GetRLayer(Int_t layer) { |
| a3b31967 |
769 | // |
| 770 | // Return the average radius of a layer from Geometry |
| 771 | // |
| 275a301c |
772 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return -999.;} |
| 773 | Int_t i=layer+1; // in AliITSgeomTGeo you count from 1 to 6 ! |
| 774 | |
| 775 | Double_t xyz[3], &x=xyz[0], &y=xyz[1]; |
| 776 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); |
| 777 | Double_t r=TMath::Sqrt(x*x + y*y); |
| 778 | |
| 779 | AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz); |
| 780 | r += TMath::Sqrt(x*x + y*y); |
| 781 | AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz); |
| 782 | r += TMath::Sqrt(x*x + y*y); |
| 783 | AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz); |
| 784 | r += TMath::Sqrt(x*x + y*y); |
| 785 | r*=0.25; |
| 786 | return r; |
| 787 | } |
| 788 | //______________________________________________________________________________ |
| 789 | Bool_t AliITSTrackleterSPDEff::FromGloCilToLocCart(Int_t ilayer,Int_t idet, Double_t r, Double_t phi, Double_t z, |
| 790 | Float_t &xloc, Float_t &zloc) { |
| 791 | // this method transform Global Cilindrical coordinates into local (i.e. module) |
| 792 | // cartesian coordinates |
| 793 | // |
| 794 | //Compute Cartesian Global Coordinate |
| 795 | Double_t xyzGlob[3],xyzLoc[3]; |
| 796 | xyzGlob[2]=z; |
| 797 | xyzGlob[0]=r*TMath::Cos(phi); |
| 798 | xyzGlob[1]=r*TMath::Sin(phi); |
| 799 | |
| 800 | xloc=0.; |
| 801 | zloc=0.; |
| 802 | |
| 803 | if(idet<0) return kFALSE; |
| 804 | |
| 805 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6 |
| 806 | Int_t lad = Int_t(idet/ndet) + 1; |
| 807 | Int_t det = idet - (lad-1)*ndet + 1; |
| 808 | |
| 809 | AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc); |
| 810 | |
| 811 | xloc = (Float_t)xyzLoc[0]; |
| 812 | zloc = (Float_t)xyzLoc[2]; |
| 813 | |
| 814 | return kTRUE; |
| 815 | } |
| 816 | //______________________________________________________________________________ |
| 817 | Int_t AliITSTrackleterSPDEff::FindDetectorIndex(Int_t layer, Double_t phi, Double_t z) { |
| 818 | //-------------------------------------------------------------------- |
| a3b31967 |
819 | // This function finds the detector crossed by the track |
| 820 | // Input: layer in range [0,1] |
| 821 | // phi in ALICE absolute reference system |
| 822 | // z " " " " " |
| 275a301c |
823 | //-------------------------------------------------------------------- |
| 824 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return -1;} |
| 825 | Int_t i=layer+1; // in AliITSgeomTGeo you count from 1 to 6 ! |
| 826 | Int_t nladders=AliITSgeomTGeo::GetNLadders(i); |
| 827 | Int_t ndetectors=AliITSgeomTGeo::GetNDetectors(i); |
| 828 | |
| 829 | Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z2=xyz[2]; |
| 830 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); |
| 831 | Double_t phiOffset=TMath::ATan2(y,x); |
| 832 | Double_t zOffset=z2; |
| 833 | |
| 834 | Double_t dphi; |
| 835 | if (zOffset<0) // old geometry |
| 836 | dphi = -(phi-phiOffset); |
| 837 | else // new geometry |
| 838 | dphi = phi-phiOffset; |
| 839 | |
| 840 | if (dphi < 0) dphi += 2*TMath::Pi(); |
| 841 | else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi(); |
| 842 | Int_t np=Int_t(dphi*nladders*0.5/TMath::Pi()+0.5); |
| 843 | if (np>=nladders) np-=nladders; |
| 844 | if (np<0) np+=nladders; |
| 845 | |
| 846 | Double_t dz=zOffset-z; |
| 847 | Double_t nnz = dz*(ndetectors-1)*0.5/zOffset+0.5; |
| 848 | Int_t nz = (nnz<0 ? -1 : (Int_t)nnz); |
| 849 | if (nz>=ndetectors) {AliDebug(1,Form("too long: nz =%d",nz)); return -1;} |
| 850 | if (nz<0) {AliDebug(1,Form("too short: nz =%d",nz)); return -1;} |
| 851 | |
| 852 | return np*ndetectors + nz; |
| 853 | } |
| 854 | //____________________________________________________________ |
| 855 | Bool_t AliITSTrackleterSPDEff::FindIntersectionPolar(Double_t vtx[2],Double_t phiVtx, Double_t R,Double_t &phi) { |
| 856 | // this method find the intersection in xy between a tracklet (straight line) and |
| 857 | // a circonference (r=R), using polar coordinates. |
| 858 | /* |
| 859 | Input: - vtx[2]: actual vertex w.r.t. ALICE reference system |
| 860 | - phiVtx: phi angle of the line (tracklet) computed w.r.t. vtx |
| 861 | - R: radius of the circle |
| 862 | Output: - phi : phi angle of the unique interception in the ALICE Global ref. system |
| 863 | |
| 864 | Correct method below: you have the equation of a circle (in polar coordinate) w.r.t. Actual vtx: |
| 865 | r^2-2*r*r0*cos(phi-phi0) + r0^2 = R^2 , where (r0,phi0) is the centre of the circle |
| 866 | In the same system, the equation of a semi-line is: phi=phiVtx; |
| 867 | Hence you get one interception only: P=(r,phiVtx) |
| a3b31967 |
868 | Finally you want P in the ABSOLUTE ALICE reference system. |
| 275a301c |
869 | */ |
| 870 | Double_t rO=TMath::Sqrt(vtx[0]*vtx[0]+vtx[1]*vtx[1]); // polar coordinates of the ALICE origin |
| 871 | Double_t phiO=TMath::ATan2(-vtx[1],-vtx[0]); // in the system with vtx[2] as origin |
| 872 | Double_t bB=-2.*rO*TMath::Cos(phiVtx-phiO); |
| 873 | Double_t cC=rO*rO-R*R; |
| 874 | Double_t dDelta=bB*bB-4*cC; |
| 875 | if(dDelta<0) return kFALSE; |
| 876 | Double_t r1,r2; |
| 877 | r1=(-bB-TMath::Sqrt(dDelta))/2; |
| 878 | r2=(-bB+TMath::Sqrt(dDelta))/2; |
| 879 | if(r1*r2>0) { printf("allora non hai capito nulla \n"); return kFALSE;} |
| 880 | Double_t r=TMath::Max(r1,r2); // take the positive |
| 881 | Double_t pvtx[2]; // Cartesian coordinates of the interception w.r.t. vtx |
| 882 | Double_t pP[2]; // Cartesian coordinates of the interception w.r.t. ALICE origin |
| 883 | pvtx[0]=r*TMath::Cos(phiVtx); |
| 884 | pvtx[1]=r*TMath::Sin(phiVtx); |
| 885 | pP[0]=vtx[0]+pvtx[0]; |
| 886 | pP[1]=vtx[1]+pvtx[1]; |
| 887 | phi=TMath::ATan2(pP[1],pP[0]); |
| 888 | return kTRUE; |
| 889 | } |
| 890 | //___________________________________________________________ |
| 891 | Bool_t AliITSTrackleterSPDEff::SetAngleRange02Pi(Double_t &angle) { |
| a3b31967 |
892 | // |
| 893 | // simple method to reduce all angles (in rad) |
| 894 | // in range [0,2pi[ |
| 895 | // |
| 896 | // |
| 275a301c |
897 | while(angle >=2*TMath::Pi() || angle<0) { |
| 898 | if(angle >= 2*TMath::Pi()) angle-=2*TMath::Pi(); |
| 899 | if(angle < 0) angle+=2*TMath::Pi(); |
| 900 | } |
| 901 | return kTRUE; |
| 902 | } |
| 903 | //___________________________________________________________ |
| 904 | Bool_t AliITSTrackleterSPDEff::PrimaryTrackChecker(Int_t ipart,AliStack* stack) { |
| a3b31967 |
905 | // |
| 906 | // This method check if a particle is primary; i.e. |
| 907 | // it comes from the main vertex and it is a "stable" particle, according to |
| 908 | // AliStack::IsPhysicalPrimary() (note that there also Sigma0 are considered as |
| 909 | // a stable particle: it has no effect on this analysis). |
| 910 | // This method can be called only for MC events, where Kinematics is available. |
| 911 | // if fUseOnlyStableParticle is kTRUE (via SetseOnlyStableParticle) then it |
| 912 | // returns kTRUE if also AliITSTrackleterSPDEff::DecayingTrackChecker() return 0. |
| 913 | // The latter (see below) try to verify if a primary particle is also "detectable". |
| 914 | // |
| 275a301c |
915 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return kFALSE;} |
| 916 | if(!stack) {AliError("null pointer to MC stack"); return kFALSE;} |
| 917 | if(ipart >= stack->GetNtrack()) {AliError("this track label is not in MC stack"); return kFALSE;} |
| 918 | // return stack->IsPhysicalPrimary(ipart); // looking at AliStack.cxx this does not seem to be complete (e.g. Pi0 Dalitz) |
| 919 | if(!stack->IsPhysicalPrimary(ipart)) return kFALSE; |
| 920 | // like below: as in the correction for Multiplicity (i.e. by hand in macro) |
| 921 | TParticle* part = stack->Particle(ipart); |
| 922 | TParticle* part0 = stack->Particle(0); // first primary |
| 923 | TParticle* partl = stack->Particle(stack->GetNprimary()-1); //last primary |
| 924 | if (part0->Vx()-partl->Vx()>0) AliDebug(1,Form("Difference in vtx position between 1th and last primaries %f %f %f", |
| 925 | part0->Vx()-partl->Vx(),part0->Vy()-partl->Vy(), part0->Vz()-partl->Vz() )); |
| 926 | |
| 927 | if (!part || strcmp(part->GetName(),"XXX")==0) {AliWarning("String , not particle ??") ;return kFALSE; } |
| 928 | TParticlePDG* pdgPart = part->GetPDG(); |
| 929 | if (TMath::Abs(pdgPart->Charge()) < 3) {AliWarning("This seems a quark"); return kFALSE;} |
| 930 | |
| 931 | Double_t distx = part->Vx() - part0->Vx(); |
| 932 | Double_t disty = part->Vy() - part0->Vy(); |
| 933 | Double_t distz = part->Vz() - part0->Vz(); |
| 934 | Double_t distR=TMath::Sqrt(distx*distx + disty*disty + distz*distz); |
| 935 | |
| 936 | if (distR > 0.05) {AliDebug(1,Form("True vertex should be %f %f, this particle from %f %f ", |
| 937 | part0->Vx(),part0->Vy(),part->Vx(),part->Vy())); |
| 938 | return kFALSE; }// primary if within 500 microns from true Vertex |
| 939 | |
| a3b31967 |
940 | if(fUseOnlyStableParticle && DecayingTrackChecker(ipart,stack)>0) return kFALSE; |
| 275a301c |
941 | return kTRUE; |
| 942 | } |
| 943 | //_____________________________________________________________________________________________ |
| 944 | Int_t AliITSTrackleterSPDEff::DecayingTrackChecker(Int_t ipart,AliStack* stack) { |
| a3b31967 |
945 | // |
| 946 | // This private method can be applied on MC particles (if stack is available), |
| 947 | // provided they have been identified as "primary" from PrimaryTrackChecker() (see above). |
| 948 | // |
| 949 | // It define "detectable" a primary particle according to the following criteria: |
| 950 | // |
| 951 | // - if no decay products can be found in the stack (note that this does not |
| 952 | // means it is stable, since a particle is stored in stack if it has at least 1 hit in a |
| 953 | // sensitive detector) |
| 954 | // - if it has at least one decay daughter produced outside or just on the outer pixel layer |
| 955 | // - if the last decay particle is an electron (or a muon) which is not produced in-between |
| 956 | // the two pixel layers (this is likely to be a kink). |
| 275a301c |
957 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return 0;} |
| 958 | if(!stack) {AliError("null pointer to MC stack"); return 0;} |
| 959 | if(ipart >= stack->GetNtrack()) {AliError("this track label is not in MC stack"); return 0;} |
| 960 | |
| 961 | TParticle* part = stack->Particle(ipart); |
| 962 | //TParticle* part0 = stack->Particle(0); // first primary |
| 963 | |
| 964 | Int_t nret=0; |
| 965 | TParticle* dau = 0; |
| 966 | Int_t nDau = 0; |
| a3b31967 |
967 | Int_t pdgDau; |
| 968 | Int_t firstDau = part->GetFirstDaughter(); // if no daugther stored then no way to understand i |
| 969 | // its real fate ! But you have to take it ! |
| 970 | if (firstDau > 0) { // if it has daugther(s) try to infer if it is "detectable" as a tracklet |
| 275a301c |
971 | Int_t lastDau = part->GetLastDaughter(); |
| 972 | nDau = lastDau - firstDau + 1; |
| a3b31967 |
973 | Double_t distMax=0.; |
| 974 | Int_t jmax=0; |
| 975 | for(Int_t j=firstDau; j<=lastDau; j++) { |
| 976 | dau = stack->Particle(j); |
| 977 | Double_t distx = dau->Vx(); |
| 978 | Double_t disty = dau->Vy(); |
| 979 | //Double_t distz = dau->Vz(); |
| 980 | Double_t distR = TMath::Sqrt(distx*distx+disty*disty); |
| 981 | if(distR<distMax) continue; // considere only the daughter produced at largest radius |
| 982 | distMax=distR; |
| 983 | jmax=j; |
| 984 | } |
| 985 | dau = stack->Particle(jmax); |
| 986 | pdgDau=dau->GetPdgCode(); |
| 987 | if (pdgDau == 11 || pdgDau == 13 ) { |
| 988 | if(distMax < GetRLayer(1)-0.25 && distMax > GetRLayer(0)+0.27) nret=1; // can be a kink (reject it) |
| 989 | else nret =0; // delta-ray emission in material (keep it) |
| 990 | } |
| 991 | else {// not ele or muon |
| 992 | if (distMax < GetRLayer(1)-0.25 ) nret= 1;} // decay before the second pixel layer (reject it) |
| 275a301c |
993 | } |
| a3b31967 |
994 | return nret; |
| 275a301c |
995 | } |
| 996 | //_________________________________________________________________ |
| 997 | void AliITSTrackleterSPDEff::InitPredictionMC() { |
| a3b31967 |
998 | // |
| 999 | // this method allocate memory for the MC related informations |
| 1000 | // all the counters are set to 0 |
| 1001 | // |
| 1002 | // |
| 275a301c |
1003 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return;} |
| 1004 | fPredictionPrimary = new Int_t[1200]; |
| 1005 | fPredictionSecondary = new Int_t[1200]; |
| 1006 | fClusterPrimary = new Int_t[1200]; |
| 1007 | fClusterSecondary = new Int_t[1200]; |
| a3b31967 |
1008 | fSuccessPP = new Int_t[1200]; |
| 1009 | fSuccessTT = new Int_t[1200]; |
| 1010 | fSuccessS = new Int_t[1200]; |
| 1011 | fSuccessP = new Int_t[1200]; |
| 1012 | fFailureS = new Int_t[1200]; |
| 1013 | fFailureP = new Int_t[1200]; |
| 1014 | fRecons = new Int_t[1200]; |
| 1015 | fNonRecons = new Int_t[1200]; |
| 275a301c |
1016 | for(Int_t i=0; i<1200; i++) { |
| 1017 | fPredictionPrimary[i]=0; |
| 1018 | fPredictionSecondary[i]=0; |
| 1019 | fPredictionSecondary[i]=0; |
| 1020 | fClusterSecondary[i]=0; |
| a3b31967 |
1021 | fSuccessPP[i]=0; |
| 1022 | fSuccessTT[i]=0; |
| 1023 | fSuccessS[i]=0; |
| 1024 | fSuccessP[i]=0; |
| 1025 | fFailureS[i]=0; |
| 1026 | fFailureP[i]=0; |
| 1027 | fRecons[i]=0; |
| 1028 | fNonRecons[i]=0; |
| 275a301c |
1029 | } |
| 1030 | return; |
| 1031 | } |
| 1032 | //______________________________________________________________________ |
| 1033 | Int_t AliITSTrackleterSPDEff::GetPredictionPrimary(const UInt_t key) const { |
| 84161aec |
1034 | // |
| 1035 | // This method return the Data menmber fPredictionPrimary [1200]. |
| 1036 | // You can call it only for MC events. |
| 1037 | // fPredictionPrimary[key] contains the number of tracklet predictions on the |
| 1038 | // given chip key built using a cluster on the other layer produced (at least) |
| 1039 | // from a primary particle. |
| 1040 | // Key refers to the chip crossed by the prediction |
| 1041 | // |
| 1042 | // |
| 275a301c |
1043 | if (!fMC) {CallWarningMC(); return 0;} |
| 1044 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1045 | return fPredictionPrimary[(Int_t)key]; |
| 1046 | } |
| 1047 | //______________________________________________________________________ |
| 1048 | Int_t AliITSTrackleterSPDEff::GetPredictionSecondary(const UInt_t key) const { |
| 84161aec |
1049 | // |
| 1050 | // This method return the Data menmber fPredictionSecondary [1200]. |
| 1051 | // You can call it only for MC events. |
| 1052 | // fPredictionSecondary[key] contains the number of tracklet predictions on the |
| 1053 | // given chip key built using a cluster on the other layer produced (only) |
| 1054 | // from a secondary particle |
| 1055 | // Key refers to the chip crossed by the prediction |
| 1056 | // |
| 1057 | // |
| 275a301c |
1058 | if (!fMC) {CallWarningMC(); return 0;} |
| 1059 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1060 | return fPredictionSecondary[(Int_t)key]; |
| 1061 | } |
| 1062 | //______________________________________________________________________ |
| 1063 | Int_t AliITSTrackleterSPDEff::GetClusterPrimary(const UInt_t key) const { |
| 84161aec |
1064 | // |
| 1065 | // This method return the Data menmber fClusterPrimary [1200]. |
| 1066 | // You can call it only for MC events. |
| 1067 | // fClusterPrimary[key] contains the number of tracklet predictions |
| 1068 | // built using a cluster on that layer produced (only) |
| 1069 | // from a primary particle |
| 1070 | // Key refers to the chip used to build the prediction |
| 1071 | // |
| 1072 | // |
| 275a301c |
1073 | if (!fMC) {CallWarningMC(); return 0;} |
| 1074 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1075 | return fClusterPrimary[(Int_t)key]; |
| 1076 | } |
| 1077 | //______________________________________________________________________ |
| 1078 | Int_t AliITSTrackleterSPDEff::GetClusterSecondary(const UInt_t key) const { |
| 84161aec |
1079 | // |
| 1080 | // This method return the Data menmber fClusterSecondary [1200]. |
| 1081 | // You can call it only for MC events. |
| 1082 | // fClusterSecondary[key] contains the number of tracklet predictions |
| 1083 | // built using a cluster on that layer produced (only) |
| 1084 | // from a secondary particle |
| 1085 | // Key refers to the chip used to build the prediction |
| 1086 | // |
| 275a301c |
1087 | if (!fMC) {CallWarningMC(); return 0;} |
| 1088 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1089 | return fClusterSecondary[(Int_t)key]; |
| 1090 | } |
| 1091 | //______________________________________________________________________ |
| a3b31967 |
1092 | Int_t AliITSTrackleterSPDEff::GetSuccessPP(const UInt_t key) const { |
| 1093 | // |
| 1094 | // This method return the Data menmber fSuccessPP [1200]. |
| 1095 | // You can call it only for MC events. |
| 1096 | // fSuccessPP[key] contains the number of successes (i.e. a tracklet prediction matching |
| 1097 | // with a cluster on the other layer) built by using the same primary particle |
| 1098 | // the unique chip key refers to the chip which get updated its efficiency |
| 1099 | // |
| 1100 | if (!fMC) {CallWarningMC(); return 0;} |
| 1101 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1102 | return fSuccessPP[(Int_t)key]; |
| 1103 | } |
| 1104 | //______________________________________________________________________ |
| 1105 | Int_t AliITSTrackleterSPDEff::GetSuccessTT(const UInt_t key) const { |
| 1106 | // |
| 1107 | // This method return the Data menmber fSuccessTT [1200]. |
| 1108 | // You can call it only for MC events. |
| 1109 | // fSuccessTT[key] contains the number of successes (i.e. a tracklet prediction matching |
| 1110 | // with a cluster on the other layer) built by using the same particle (whatever) |
| 1111 | // the unique chip key refers to the chip which get updated its efficiency |
| 1112 | // |
| 1113 | if (!fMC) {CallWarningMC(); return 0;} |
| 1114 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1115 | return fSuccessTT[(Int_t)key]; |
| 1116 | } |
| 1117 | //______________________________________________________________________ |
| 1118 | Int_t AliITSTrackleterSPDEff::GetSuccessS(const UInt_t key) const { |
| 1119 | // |
| 1120 | // This method return the Data menmber fSuccessS [1200]. |
| 1121 | // You can call it only for MC events. |
| 1122 | // fSuccessS[key] contains the number of successes (i.e. a tracklet prediction matching |
| 1123 | // with a cluster on the other layer) built by using a secondary particle |
| 1124 | // the unique chip key refers to the chip which get updated its efficiency |
| 1125 | // |
| 1126 | if (!fMC) {CallWarningMC(); return 0;} |
| 1127 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1128 | return fSuccessS[(Int_t)key]; |
| 1129 | } |
| 1130 | //______________________________________________________________________ |
| 1131 | Int_t AliITSTrackleterSPDEff::GetSuccessP(const UInt_t key) const { |
| 1132 | // |
| 1133 | // This method return the Data menmber fSuccessP [1200]. |
| 1134 | // You can call it only for MC events. |
| 1135 | // fSuccessP[key] contains the number of successes (i.e. a tracklet prediction matching |
| 1136 | // with a cluster on the other layer) built by using a primary particle |
| 1137 | // the unique chip key refers to the chip which get updated its efficiency |
| 1138 | // |
| 1139 | if (!fMC) {CallWarningMC(); return 0;} |
| 1140 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1141 | return fSuccessP[(Int_t)key]; |
| 1142 | } |
| 1143 | //______________________________________________________________________ |
| 1144 | Int_t AliITSTrackleterSPDEff::GetFailureS(const UInt_t key) const { |
| 1145 | // |
| 1146 | // This method return the Data menmber fFailureS [1200]. |
| 1147 | // You can call it only for MC events. |
| 1148 | // fFailureS[key] contains the number of failures (i.e. a tracklet prediction not matching |
| 1149 | // with a cluster on the other layer) built by using a secondary particle |
| 1150 | // the unique chip key refers to the chip which get updated its efficiency |
| 1151 | // |
| 1152 | if (!fMC) {CallWarningMC(); return 0;} |
| 1153 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1154 | return fFailureS[(Int_t)key]; |
| 1155 | } |
| 1156 | //______________________________________________________________________ |
| 1157 | Int_t AliITSTrackleterSPDEff::GetFailureP(const UInt_t key) const { |
| 1158 | // |
| 1159 | // This method return the Data menmber fFailureP [1200]. |
| 1160 | // You can call it only for MC events. |
| 1161 | // fFailureP[key] contains the number of failures (i.e. a tracklet prediction not matching |
| 1162 | // with a cluster on the other layer) built by using a primary particle |
| 1163 | // the unique chip key refers to the chip which get updated its efficiency |
| 1164 | // |
| 1165 | if (!fMC) {CallWarningMC(); return 0;} |
| 1166 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1167 | return fFailureP[(Int_t)key]; |
| 1168 | } |
| 1169 | //_____________________________________________________________________ |
| 1170 | Int_t AliITSTrackleterSPDEff::GetRecons(const UInt_t key) const { |
| 1171 | // |
| 1172 | // This method return the Data menmber fRecons [1200]. |
| 1173 | // You can call it only for MC events. |
| 1174 | // fRecons[key] contains the number of reconstractable tracklets (i.e. a tracklet prediction which |
| 1175 | // has an hit in the detector) |
| 1176 | // the unique chip key refers to the chip where fall the prediction |
| 1177 | // |
| 1178 | if (!fMC) {CallWarningMC(); return 0;} |
| 1179 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1180 | return fRecons[(Int_t)key]; |
| 1181 | } |
| 1182 | //_____________________________________________________________________ |
| 1183 | Int_t AliITSTrackleterSPDEff::GetNonRecons(const UInt_t key) const { |
| 1184 | // |
| 1185 | // This method return the Data menmber fNonRecons [1200]. |
| 1186 | // You can call it only for MC events. |
| 1187 | // fRecons[key] contains the number of unreconstractable tracklets (i.e. a tracklet prediction which |
| 1188 | // has not any hit in the detector) |
| 1189 | // the unique chip key refers to the chip where fall the prediction |
| 1190 | // |
| 1191 | if (!fMC) {CallWarningMC(); return 0;} |
| 1192 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} |
| 1193 | return fNonRecons[(Int_t)key]; |
| 1194 | } |
| 1195 | //______________________________________________________________________ |
| 275a301c |
1196 | void AliITSTrackleterSPDEff::PrintAscii(ostream *os)const{ |
| 1197 | // Print out some class data values in Ascii Form to output stream |
| 1198 | // Inputs: |
| 1199 | // ostream *os Output stream where Ascii data is to be writen |
| 1200 | // Outputs: |
| 1201 | // none. |
| 1202 | // Return: |
| 1203 | // none. |
| a3b31967 |
1204 | *os << fPhiWindowL1 <<" "<< fZetaWindowL1 << " " << fPhiWindow <<" "<< fZetaWindow |
| 1205 | << " " << fOnlyOneTrackletPerC1 << " " << fOnlyOneTrackletPerC2 |
| 0fce916f |
1206 | << " " << fUpdateOncePerEventPlaneEff << " " << fReflectClusterAroundZAxisForLayer0 |
| 1207 | << " " << fReflectClusterAroundZAxisForLayer1; |
| 275a301c |
1208 | *os << " " << fMC; |
| 1209 | if(!fMC) {AliInfo("Writing only cuts, no MC info"); return;} |
| 1210 | *os << " " << fUseOnlyPrimaryForPred << " " << fUseOnlySecondaryForPred |
| 1211 | << " " << fUseOnlySameParticle << " " << fUseOnlyDifferentParticle |
| 1212 | << " " << fUseOnlyStableParticle ; |
| 1213 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetPredictionPrimary(i) ; |
| 1214 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetPredictionSecondary(i) ; |
| 1215 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetClusterPrimary(i) ; |
| 1216 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetClusterSecondary(i) ; |
| a3b31967 |
1217 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetSuccessPP(i) ; |
| 1218 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetSuccessTT(i) ; |
| 1219 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetSuccessS(i) ; |
| 1220 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetSuccessP(i) ; |
| 1221 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetFailureS(i) ; |
| 1222 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetFailureP(i) ; |
| 1223 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetRecons(i) ; |
| 1224 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetNonRecons(i) ; |
| 275a301c |
1225 | return; |
| 1226 | } |
| 1227 | //______________________________________________________________________ |
| 1228 | void AliITSTrackleterSPDEff::ReadAscii(istream *is){ |
| 1229 | // Read in some class data values in Ascii Form to output stream |
| 1230 | // Inputs: |
| 1231 | // istream *is Input stream where Ascii data is to be read in from |
| 1232 | // Outputs: |
| 1233 | // none. |
| 1234 | // Return: |
| 1235 | // none. |
| 1236 | |
| a3b31967 |
1237 | *is >> fPhiWindowL1 >> fZetaWindowL1 >> fPhiWindow >> fZetaWindow |
| 1238 | >> fOnlyOneTrackletPerC1 >> fOnlyOneTrackletPerC2 |
| 0fce916f |
1239 | >> fUpdateOncePerEventPlaneEff >> fReflectClusterAroundZAxisForLayer0 |
| 1240 | >> fReflectClusterAroundZAxisForLayer1; |
| 275a301c |
1241 | *is >> fMC; |
| 1242 | if(!fMC) {AliInfo("Reading only cuts, no MC info available");return;} |
| 1243 | *is >> fUseOnlyPrimaryForPred >> fUseOnlySecondaryForPred |
| 1244 | >> fUseOnlySameParticle >> fUseOnlyDifferentParticle |
| 1245 | >> fUseOnlyStableParticle; |
| 1246 | for(Int_t i=0;i<1200;i++) *is >> fPredictionPrimary[i] ; |
| 1247 | for(Int_t i=0;i<1200;i++) *is >> fPredictionSecondary[i] ; |
| 1248 | for(Int_t i=0;i<1200;i++) *is >> fClusterPrimary[i] ; |
| 1249 | for(Int_t i=0;i<1200;i++) *is >> fClusterSecondary[i] ; |
| a3b31967 |
1250 | for(Int_t i=0;i<1200;i++) *is >> fSuccessPP[i] ; |
| 1251 | for(Int_t i=0;i<1200;i++) *is >> fSuccessTT[i] ; |
| 1252 | for(Int_t i=0;i<1200;i++) *is >> fSuccessS[i] ; |
| 1253 | for(Int_t i=0;i<1200;i++) *is >> fSuccessP[i] ; |
| 1254 | for(Int_t i=0;i<1200;i++) *is >> fFailureS[i] ; |
| 1255 | for(Int_t i=0;i<1200;i++) *is >> fFailureP[i] ; |
| 1256 | for(Int_t i=0;i<1200;i++) *is >> fRecons[i] ; |
| 1257 | for(Int_t i=0;i<1200;i++) *is >> fNonRecons[i] ; |
| 275a301c |
1258 | return; |
| 1259 | } |
| 1260 | //______________________________________________________________________ |
| 1261 | ostream &operator<<(ostream &os,const AliITSTrackleterSPDEff &s){ |
| 1262 | // Standard output streaming function |
| 1263 | // Inputs: |
| 1264 | // ostream &os output steam |
| 1265 | // AliITSTrackleterSPDEff &s class to be streamed. |
| 1266 | // Output: |
| 1267 | // none. |
| 1268 | // Return: |
| 1269 | // ostream &os The stream pointer |
| 1270 | |
| 1271 | s.PrintAscii(&os); |
| 1272 | return os; |
| 1273 | } |
| 1274 | //______________________________________________________________________ |
| 1275 | istream &operator>>(istream &is,AliITSTrackleterSPDEff &s){ |
| 1276 | // Standard inputput streaming function |
| 1277 | // Inputs: |
| 1278 | // istream &is input steam |
| 1279 | // AliITSTrackleterSPDEff &s class to be streamed. |
| 1280 | // Output: |
| 1281 | // none. |
| 1282 | // Return: |
| 1283 | // ostream &os The stream pointer |
| 1284 | |
| 1285 | //printf("prova %d \n", (Int_t)s.GetMC()); |
| 1286 | s.ReadAscii(&is); |
| 1287 | return is; |
| 1288 | } |
| 1289 | //______________________________________________________________________ |
| 1290 | void AliITSTrackleterSPDEff::SavePredictionMC(TString filename) const { |
| 84161aec |
1291 | // |
| 1292 | // This Method write into an asci file (do not know why binary does not work) |
| 1293 | // the used cuts and the statistics of the MC related quantities |
| 1294 | // The method SetMC() has to be called before |
| 1295 | // Input TString filename: name of file for output (it deletes already existing |
| 1296 | // file) |
| 1297 | // Output: none |
| 1298 | // |
| 1299 | // |
| 275a301c |
1300 | if(!fMC) {CallWarningMC(); return;} |
| 1301 | ofstream out(filename.Data(),ios::out | ios::binary); |
| 1302 | out << *this; |
| 1303 | out.close(); |
| 1304 | return; |
| 1305 | } |
| 1306 | //____________________________________________________________________ |
| 1307 | void AliITSTrackleterSPDEff::ReadPredictionMC(TString filename) { |
| 84161aec |
1308 | // |
| 1309 | // This Method read from an asci file (do not know why binary does not work) |
| 1310 | // the cuts to be used and the statistics of the MC related quantities |
| 1311 | // Input TString filename: name of input file for output |
| 1312 | // The method SetMC() has to be called before |
| 1313 | // Output: none |
| 1314 | // |
| 1315 | // |
| 275a301c |
1316 | if(!fMC) {CallWarningMC(); return;} |
| 1317 | if( gSystem->AccessPathName( filename.Data() ) ) { |
| 1318 | AliError( Form( "file (%s) not found", filename.Data() ) ); |
| 1319 | return; |
| 1320 | } |
| 1321 | |
| 1322 | ifstream in(filename.Data(),ios::in | ios::binary); |
| 1323 | in >> *this; |
| 1324 | in.close(); |
| 1325 | return; |
| 1326 | } |
| 1327 | //____________________________________________________________________ |
| 1328 | Bool_t AliITSTrackleterSPDEff::SaveHists() { |
| 84161aec |
1329 | // This (private) method save the histograms on the output file |
| 275a301c |
1330 | // (only if fHistOn is TRUE). |
| 84161aec |
1331 | // Also the histograms from the base class are saved through the |
| 1332 | // AliITSMultReconstructor::SaveHists() call |
| 275a301c |
1333 | |
| 1334 | if (!GetHistOn()) return kFALSE; |
| 1335 | |
| 1336 | AliITSMultReconstructor::SaveHists(); // this save the histograms of the base class |
| 1337 | |
| 1338 | fhClustersDPhiInterpAll->Write(); |
| 1339 | fhClustersDThetaInterpAll->Write(); |
| 1340 | fhClustersDZetaInterpAll->Write(); |
| 1341 | fhDPhiVsDThetaInterpAll->Write(); |
| 1342 | fhDPhiVsDZetaInterpAll->Write(); |
| 1343 | |
| 1344 | fhClustersDPhiInterpAcc->Write(); |
| 1345 | fhClustersDThetaInterpAcc->Write(); |
| 1346 | fhClustersDZetaInterpAcc->Write(); |
| 1347 | fhDPhiVsDThetaInterpAcc->Write(); |
| 1348 | fhDPhiVsDZetaInterpAcc->Write(); |
| 1349 | |
| 1350 | fhetaClustersLay2->Write(); |
| 1351 | fhphiClustersLay2->Write(); |
| 1352 | return kTRUE; |
| 1353 | } |
| 1354 | //__________________________________________________________ |
| 1355 | Bool_t AliITSTrackleterSPDEff::WriteHistosToFile(TString filename, Option_t* option) { |
| 1356 | // |
| 1357 | // Saves the histograms into a tree and saves the trees into a file |
| 84161aec |
1358 | // Also the histograms from the base class are saved |
| 275a301c |
1359 | // |
| 1360 | if (!GetHistOn()) return kFALSE; |
| 1361 | if (filename.Data()=="") { |
| 1362 | AliWarning("WriteHistosToFile: null output filename!"); |
| 1363 | return kFALSE; |
| 1364 | } |
| 1365 | TFile *hFile=new TFile(filename.Data(),option, |
| 1366 | "The File containing the histos for SPD efficiency studies with tracklets"); |
| 1367 | if(!SaveHists()) return kFALSE; |
| 1368 | hFile->Write(); |
| 1369 | hFile->Close(); |
| 1370 | return kTRUE; |
| 1371 | } |
| 1372 | //____________________________________________________________ |
| 1373 | void AliITSTrackleterSPDEff::BookHistos() { |
| 84161aec |
1374 | // |
| 1375 | // This method books addtitional histograms |
| 1376 | // w.r.t. those of the base class. |
| 1377 | // In particular, the differences of cluster coordinate between the two SPD |
| 1378 | // layers are computed in the interpolation phase |
| 1379 | // |
| 275a301c |
1380 | if (! GetHistOn()) { AliInfo("Call SetHistOn(kTRUE) first"); return;} |
| 1381 | fhClustersDPhiInterpAcc = new TH1F("dphiaccInterp", "dphi Interpolation phase", 100,0.,0.1); |
| 1382 | fhClustersDPhiInterpAcc->SetDirectory(0); |
| 1383 | fhClustersDThetaInterpAcc = new TH1F("dthetaaccInterp","dtheta Interpolation phase",100,-0.1,0.1); |
| 1384 | fhClustersDThetaInterpAcc->SetDirectory(0); |
| 1385 | fhClustersDZetaInterpAcc = new TH1F("dzetaaccInterp","dzeta Interpolation phase",100,-1.,1.); |
| 1386 | fhClustersDZetaInterpAcc->SetDirectory(0); |
| 1387 | |
| 1388 | fhDPhiVsDZetaInterpAcc = new TH2F("dphiVsDzetaaccInterp","dphiVsDzeta Interpolation phase",100,-1.,1.,100,0.,0.1); |
| 1389 | fhDPhiVsDZetaInterpAcc->SetDirectory(0); |
| 1390 | fhDPhiVsDThetaInterpAcc = new TH2F("dphiVsDthetaAccInterp","dphiVsDtheta Interpolation phase",100,-0.1,0.1,100,0.,0.1); |
| 1391 | fhDPhiVsDThetaInterpAcc->SetDirectory(0); |
| 1392 | |
| 1393 | fhClustersDPhiInterpAll = new TH1F("dphiallInterp", "dphi Interpolation phase", 100,0.0,0.5); |
| 1394 | fhClustersDPhiInterpAll->SetDirectory(0); |
| 1395 | fhClustersDThetaInterpAll = new TH1F("dthetaallInterp","dtheta Interpolation phase",100,-0.5,0.5); |
| 1396 | fhClustersDThetaInterpAll->SetDirectory(0); |
| 1397 | fhClustersDZetaInterpAll = new TH1F("dzetaallInterp","dzeta Interpolation phase",100,-5.,5.); |
| 1398 | fhClustersDZetaInterpAll->SetDirectory(0); |
| 1399 | |
| 1400 | fhDPhiVsDZetaInterpAll = new TH2F("dphiVsDzetaallInterp","dphiVsDzeta Interpolation phase",100,-5.,5.,100,0.,0.5); |
| 1401 | fhDPhiVsDZetaInterpAll->SetDirectory(0); |
| 1402 | fhDPhiVsDThetaInterpAll = new TH2F("dphiVsDthetaAllInterp","dphiVsDtheta Interpolation phase",100,-0.5,0.5,100,0.,0.5); |
| 1403 | fhDPhiVsDThetaInterpAll->SetDirectory(0); |
| 1404 | |
| 1405 | fhetaClustersLay2 = new TH1F("etaClustersLay2", "etaCl2", 100,-2.,2.); |
| 1406 | fhetaClustersLay2->SetDirectory(0); |
| 1407 | fhphiClustersLay2 = new TH1F("phiClustersLay2", "phiCl2", 100, 0., 2*TMath::Pi()); |
| 1408 | fhphiClustersLay2->SetDirectory(0); |
| 1409 | return; |
| 1410 | } |
| 1411 | //____________________________________________________________ |
| 1412 | void AliITSTrackleterSPDEff::DeleteHistos() { |
| 84161aec |
1413 | // |
| 1414 | // Private method to delete Histograms from memory |
| 1415 | // it is called. e.g., by the destructor. |
| 1416 | // |
| 275a301c |
1417 | if(fhClustersDPhiInterpAcc) {delete fhClustersDPhiInterpAcc; fhClustersDPhiInterpAcc=0;} |
| 1418 | if(fhClustersDThetaInterpAcc) {delete fhClustersDThetaInterpAcc; fhClustersDThetaInterpAcc=0;} |
| 1419 | if(fhClustersDZetaInterpAcc) {delete fhClustersDZetaInterpAcc; fhClustersDZetaInterpAcc=0;} |
| 1420 | if(fhClustersDPhiInterpAll) {delete fhClustersDPhiInterpAll; fhClustersDPhiInterpAll=0;} |
| 1421 | if(fhClustersDThetaInterpAll) {delete fhClustersDThetaInterpAll; fhClustersDThetaInterpAll=0;} |
| 1422 | if(fhClustersDZetaInterpAll) {delete fhClustersDZetaInterpAll; fhClustersDZetaInterpAll=0;} |
| 1423 | if(fhDPhiVsDThetaInterpAll) {delete fhDPhiVsDThetaInterpAll; fhDPhiVsDThetaInterpAll=0;} |
| 1424 | if(fhDPhiVsDThetaInterpAcc) {delete fhDPhiVsDThetaInterpAcc; fhDPhiVsDThetaInterpAcc=0;} |
| 1425 | if(fhDPhiVsDZetaInterpAll) {delete fhDPhiVsDZetaInterpAll; fhDPhiVsDZetaInterpAll=0;} |
| 1426 | if(fhDPhiVsDZetaInterpAcc) {delete fhDPhiVsDZetaInterpAcc; fhDPhiVsDZetaInterpAcc=0;} |
| 1427 | if(fhetaClustersLay2) {delete fhetaClustersLay2; fhetaClustersLay2=0;} |
| 1428 | if(fhphiClustersLay2) {delete fhphiClustersLay2; fhphiClustersLay2=0;} |
| 1429 | } |
| 1430 | //_______________________________________________________________ |
| a3b31967 |
1431 | Bool_t AliITSTrackleterSPDEff::IsReconstructableAt(Int_t layer,Int_t iC,Int_t ipart, |
| 1432 | Float_t* vtx, AliStack *stack, TTree *ref) { |
| 1433 | // This (private) method can be used only for MC events, where both AliStack and the TrackReference |
| 1434 | // are available. |
| 1435 | // It is used to asses whether a tracklet prediction is reconstructable or not at the other layer |
| 1436 | // Input: |
| 1437 | // - Int_t layer (either 0 or 1): layer which you want to chech if the tracklete can be |
| 1438 | // reconstructed at |
| 1439 | // - Int_t iC : cluster index used to build the tracklet prediction |
| 1440 | // if layer=0 ==> iC=iC2 ; elseif layer=1 ==> iC=iC1 |
| 1441 | // - Float_t* vtx: actual event vertex |
| 1442 | // - stack: pointer to Stack |
| 1443 | // - ref: pointer to TTRee of TrackReference |
| 1444 | Bool_t ret=kFALSE; // returned value |
| 1445 | Float_t trefLayExtr[3]; // equivalent to fClustersLay1/fClustersLay2 but for the track reference |
| 1446 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return ret;} |
| 1447 | if(!stack) {AliError("null pointer to MC stack"); return ret;} |
| 1448 | if(!ref) {AliError("null pointer to TrackReference Tree"); return ret;} |
| 1449 | if(ipart >= stack->GetNtrack()) {AliError("this track label is not in MC stack"); return ret;} |
| 1450 | if(layer<0 || layer>1) {AliError("You can extrapolate either at lay 0 or at lay 1"); return ret;} |
| 1451 | |
| 1452 | AliTrackReference *tref=0x0; |
| 1453 | Int_t imatch=-100; // index of the track in TrackReference which matches with ipart |
| 1454 | Int_t nentries = (Int_t)ref->GetEntries(); |
| 1455 | TClonesArray *tcaRef = new TClonesArray("AliTrackReference"); |
| 1456 | TBranch *br = ref->GetBranch("TrackReferences"); |
| 1457 | br->SetAddress(&tcaRef); |
| 1458 | for(Int_t itrack=0;itrack<nentries;itrack++) { // loop over all Tracks in TrackReference to match the ipart one |
| 1459 | br->GetEntry(itrack); |
| 1460 | Int_t nref=tcaRef->GetEntriesFast(); |
| 1461 | if(nref>0) { //it is enough to look at the first one |
| 1462 | tref=(AliTrackReference*)tcaRef->At(0); // it is enough to look at the first one |
| 1463 | if(tref->GetTrack()==ipart) {imatch=itrack; break;} |
| 1464 | } |
| 1465 | } |
| 1466 | if(imatch<0) {AliWarning(Form("Could not find AliTrackReference for particle %d",ipart)); return kFALSE;} |
| 1467 | br->GetEntry(imatch); // redundant, nevertheless ... |
| 1468 | Int_t nref=tcaRef->GetEntriesFast(); |
| 1469 | for(Int_t iref=0;iref<nref;iref++) { // loop over all the refs of the matching track |
| 1470 | tref=(AliTrackReference*)tcaRef->At(iref); |
| 1471 | if(tref->R()>10) continue; // not SPD ref |
| 1472 | if(layer==0 && tref->R()>5) continue; // ref on SPD outer layer |
| 1473 | if(layer==1 && tref->R()<5) continue; // ref on SPD inner layer |
| 1474 | |
| 1475 | // compute the proper quantities for this tref, as was done for fClustersLay1/2 |
| 1476 | Float_t x = tref->X() - vtx[0]; |
| 1477 | Float_t y = tref->Y() - vtx[1]; |
| 1478 | Float_t z = tref->Z() - vtx[2]; |
| 1479 | |
| 1480 | Float_t r = TMath::Sqrt(x*x + y*y +z*z); |
| 1481 | |
| 1482 | trefLayExtr[0] = TMath::ACos(z/r); // Store Theta |
| 1483 | trefLayExtr[1] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi |
| 1484 | trefLayExtr[2] = z; // Store z |
| 1485 | |
| 1486 | if(layer==1) { // try to see if it is reconstructable at the outer layer |
| 1487 | // find the difference in angles |
| 1488 | Float_t dPhi = TMath::Abs(trefLayExtr[1] - fClustersLay1[iC][1]); |
| 1489 | // take into account boundary condition |
| 1490 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; |
| 1491 | |
| 1492 | // find the difference in z (between linear projection from layer 1 |
| 1493 | // and the actual point: Dzeta= z1/r1*r2 -z2) |
| 1494 | Float_t r2 = trefLayExtr[2]/TMath::Cos(trefLayExtr[0]); |
| 1495 | Float_t dZeta = TMath::Cos(fClustersLay1[iC][0])*r2 - trefLayExtr[2]; |
| 1496 | |
| 1497 | // make "elliptical" cut in Phi and Zeta! |
| 1498 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindow/fPhiWindow + |
| 1499 | dZeta*dZeta/fZetaWindow/fZetaWindow); |
| 1500 | if (d<1) {ret=kTRUE; break;} |
| 1501 | } |
| 1502 | if(layer==0) { // try to see if it is reconstructable at the inner layer |
| 1503 | |
| 1504 | // find the difference in angles |
| 1505 | Float_t dPhi = TMath::Abs(fClustersLay2[iC][1] - trefLayExtr[1]); |
| 1506 | // take into account boundary condition |
| 1507 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; |
| 1508 | |
| 1509 | // find the difference in z (between linear projection from layer 2 |
| 1510 | // and the actual point: Dzeta= z2/r2*r1 -z1) |
| 1511 | Float_t r1 = trefLayExtr[2]/TMath::Cos(trefLayExtr[0]); |
| 1512 | Float_t dZeta = TMath::Cos(fClustersLay2[iC][0])*r1 - trefLayExtr[2]; |
| 1513 | |
| 1514 | // make "elliptical" cut in Phi and Zeta! |
| 1515 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindowL1/fPhiWindowL1 + |
| 1516 | dZeta*dZeta/fZetaWindowL1/fZetaWindowL1); |
| 1517 | if (d<1) {ret=kTRUE; break;}; |
| 1518 | } |
| 1519 | } |
| 1520 | delete tcaRef; |
| 1521 | return ret; |
| 1522 | } |
| 0fce916f |
1523 | //_________________________________________________________________________ |
| 1524 | void AliITSTrackleterSPDEff::ReflectClusterAroundZAxisForLayer(Int_t ilayer){ |
| 1525 | // |
| 1526 | // this method apply a rotation by 180 degree around the Z (beam) axis to all |
| 1527 | // the RecPoints in a given layer to be used to build tracklets. |
| 1528 | // **************** VERY IMPORTANT:: *************** |
| 1529 | // It must be called just after LoadClusterArrays, since afterwards the datamember |
| 1530 | // fClustersLay1[iC1][0] and fClustersLay1[iC1][1] are redefined using polar coordinate |
| 1531 | // instead of Cartesian |
| 1532 | // |
| 1533 | if(ilayer<0 || ilayer>1) {AliInfo("Input argument (ilayer) should be either 0 or 1: nothing done"); return ;} |
| 1534 | AliDebug(3,Form("Applying a rotation by 180 degree around z axiz to all clusters on layer %d",ilayer)); |
| 1535 | if(ilayer==0) { |
| 1536 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { |
| 1537 | fClustersLay1[iC1][0]*=-1; |
| 1538 | fClustersLay1[iC1][1]*=-1; |
| 1539 | } |
| 1540 | } |
| 1541 | if(ilayer==1) { |
| 1542 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { |
| 1543 | fClustersLay2[iC2][0]*=-1; |
| 1544 | fClustersLay2[iC2][1]*=-1; |
| 1545 | } |
| 1546 | } |
| 1547 | return; |
| 1548 | } |
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