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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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //____________________________________________________________________ | |
19 | // | |
20 | // AliITSTrackleterSPDEff - find SPD chips efficiencies by using tracklets. | |
21 | // | |
22 | // This class has been developed from AliITSMultReconstructor (see | |
23 | // it for more details). It is the class for the Trackleter used to estimate | |
24 | // SPD plane efficiency. | |
25 | // The trackleter prediction is built using the vertex and 1 cluster. | |
26 | // | |
27 | // | |
28 | // Author : Giuseppe Eugenio Bruno, based on the skeleton of Reconstruct method provided by Tiziano Virgili | |
29 | // email: giuseppe.bruno@ba.infn.it | |
30 | // | |
31 | //____________________________________________________________________ | |
32 | ||
33 | #include <TFile.h> | |
34 | #include <TParticle.h> | |
35 | #include <TSystem.h> | |
36 | #include <Riostream.h> | |
37 | ||
38 | #include "AliITSMultReconstructor.h" | |
39 | #include "AliITSTrackleterSPDEff.h" | |
40 | #include "AliITSgeomTGeo.h" | |
41 | #include "AliLog.h" | |
42 | #include "AliITSPlaneEffSPD.h" | |
43 | #include "AliStack.h" | |
44 | ||
45 | //____________________________________________________________________ | |
46 | ClassImp(AliITSTrackleterSPDEff) | |
47 | ||
48 | ||
49 | //____________________________________________________________________ | |
50 | AliITSTrackleterSPDEff::AliITSTrackleterSPDEff(): | |
51 | AliITSMultReconstructor(), | |
52 | fAssociationFlag1(0), | |
53 | fChipPredOnLay2(0), | |
54 | fChipPredOnLay1(0), | |
55 | fNTracklets1(0), | |
56 | fPhiWindowL1(0), | |
57 | fZetaWindowL1(0), | |
58 | fOnlyOneTrackletPerC1(0), | |
59 | fPlaneEffSPD(0), | |
60 | fMC(0), | |
61 | fUseOnlyPrimaryForPred(0), | |
62 | fUseOnlySecondaryForPred(0), | |
63 | fUseOnlySameParticle(0), | |
64 | fUseOnlyDifferentParticle(0), | |
65 | fUseOnlyStableParticle(0), | |
66 | fPredictionPrimary(0), | |
67 | fPredictionSecondary(0), | |
68 | fClusterPrimary(0), | |
69 | fClusterSecondary(0), | |
70 | fhClustersDPhiInterpAcc(0), | |
71 | fhClustersDThetaInterpAcc(0), | |
72 | fhClustersDZetaInterpAcc(0), | |
73 | fhClustersDPhiInterpAll(0), | |
74 | fhClustersDThetaInterpAll(0), | |
75 | fhClustersDZetaInterpAll(0), | |
76 | fhDPhiVsDThetaInterpAll(0), | |
77 | fhDPhiVsDThetaInterpAcc(0), | |
78 | fhDPhiVsDZetaInterpAll(0), | |
79 | fhDPhiVsDZetaInterpAcc(0), | |
80 | fhetaClustersLay2(0), | |
81 | fhphiClustersLay2(0) | |
82 | { | |
83 | ||
84 | // Method to check the SPD chips efficiencies by using tracklets | |
85 | ||
86 | ||
87 | SetPhiWindowL1(); | |
88 | SetZetaWindowL1(); | |
89 | SetOnlyOneTrackletPerC1(); | |
90 | ||
91 | fAssociationFlag1 = new Bool_t[300000]; | |
92 | fChipPredOnLay2 = new UInt_t[300000]; | |
93 | fChipPredOnLay1 = new UInt_t[300000]; | |
94 | ||
95 | for(Int_t i=0; i<300000; i++) { | |
96 | fAssociationFlag1[i] = kFALSE; | |
97 | } | |
98 | ||
99 | if (GetHistOn()) BookHistos(); | |
100 | ||
101 | fPlaneEffSPD = new AliITSPlaneEffSPD(); | |
102 | } | |
103 | //______________________________________________________________________ | |
104 | AliITSTrackleterSPDEff::AliITSTrackleterSPDEff(const AliITSTrackleterSPDEff &mr) : AliITSMultReconstructor(mr), | |
105 | fAssociationFlag1(mr.fAssociationFlag1), | |
106 | fChipPredOnLay2(mr.fChipPredOnLay2), | |
107 | fChipPredOnLay1(mr.fChipPredOnLay1), | |
108 | fNTracklets1(mr.fNTracklets1), | |
109 | fPhiWindowL1(mr.fPhiWindowL1), | |
110 | fZetaWindowL1(mr.fZetaWindowL1), | |
111 | fOnlyOneTrackletPerC1(mr.fOnlyOneTrackletPerC1), | |
112 | fPlaneEffSPD(mr.fPlaneEffSPD), | |
113 | fMC(mr.fMC), | |
114 | fUseOnlyPrimaryForPred(mr.fUseOnlyPrimaryForPred), | |
115 | fUseOnlySecondaryForPred(mr.fUseOnlySecondaryForPred), | |
116 | fUseOnlySameParticle(mr.fUseOnlySameParticle), | |
117 | fUseOnlyDifferentParticle(mr.fUseOnlyDifferentParticle), | |
118 | fUseOnlyStableParticle(mr.fUseOnlyStableParticle), | |
119 | fPredictionPrimary(mr.fPredictionPrimary), | |
120 | fPredictionSecondary(mr.fPredictionSecondary), | |
121 | fClusterPrimary(mr.fClusterPrimary), | |
122 | fClusterSecondary(mr.fClusterSecondary), | |
123 | fhClustersDPhiInterpAcc(mr.fhClustersDPhiInterpAcc), | |
124 | fhClustersDThetaInterpAcc(mr.fhClustersDThetaInterpAcc), | |
125 | fhClustersDZetaInterpAcc(mr.fhClustersDZetaInterpAcc), | |
126 | fhClustersDPhiInterpAll(mr.fhClustersDPhiInterpAll), | |
127 | fhClustersDThetaInterpAll(mr.fhClustersDThetaInterpAll), | |
128 | fhClustersDZetaInterpAll(mr.fhClustersDZetaInterpAll), | |
129 | fhDPhiVsDThetaInterpAll(mr.fhDPhiVsDThetaInterpAll), | |
130 | fhDPhiVsDThetaInterpAcc(mr.fhDPhiVsDThetaInterpAcc), | |
131 | fhDPhiVsDZetaInterpAll(mr.fhDPhiVsDZetaInterpAll), | |
132 | fhDPhiVsDZetaInterpAcc(mr.fhDPhiVsDZetaInterpAcc), | |
133 | fhetaClustersLay2(mr.fhetaClustersLay2), | |
134 | fhphiClustersLay2(mr.fhphiClustersLay2) | |
135 | { | |
136 | // Copy constructor | |
137 | } | |
138 | ||
139 | //______________________________________________________________________ | |
140 | AliITSTrackleterSPDEff& AliITSTrackleterSPDEff::operator=(const AliITSTrackleterSPDEff& mr){ | |
141 | // Assignment operator | |
142 | this->~AliITSTrackleterSPDEff(); | |
143 | new(this) AliITSTrackleterSPDEff(mr); | |
144 | return *this; | |
145 | } | |
146 | //______________________________________________________________________ | |
147 | AliITSTrackleterSPDEff::~AliITSTrackleterSPDEff(){ | |
148 | // Destructor | |
149 | ||
150 | // delete histograms | |
151 | DeleteHistos(); | |
152 | ||
153 | delete [] fAssociationFlag1; | |
154 | ||
155 | delete [] fChipPredOnLay2; | |
156 | delete [] fChipPredOnLay1; | |
157 | ||
158 | delete [] fPredictionPrimary; | |
159 | delete [] fPredictionSecondary; | |
160 | delete [] fClusterPrimary; | |
161 | delete [] fClusterSecondary; | |
162 | ||
163 | // delete PlaneEff | |
164 | delete fPlaneEffSPD; | |
165 | } | |
166 | //____________________________________________________________________ | |
167 | void | |
168 | AliITSTrackleterSPDEff::Reconstruct(TTree* clusterTree, Float_t* vtx, Float_t* /* vtxRes*/,AliStack *pStack) { | |
169 | // | |
170 | // - calls LoadClusterArray that finds the position of the clusters | |
171 | // (in global coord) | |
172 | // - convert the cluster coordinates to theta, phi (seen from the | |
173 | // interaction vertex). Find the extrapolation/interpolation point. | |
174 | // - Find the chip corresponding to that | |
175 | // - Check if there is a cluster near that point | |
176 | // | |
177 | ||
178 | // reset counters | |
179 | fNClustersLay1 = 0; | |
180 | fNClustersLay2 = 0; | |
181 | fNTracklets = 0; | |
182 | fNSingleCluster = 0; | |
183 | // loading the clusters | |
184 | LoadClusterArrays(clusterTree); | |
185 | if(fMC && !pStack) {AliError("You asked for MC infos but AliStack not properly loaded"); return;} | |
186 | Bool_t found; | |
187 | Int_t nfTraPred1=0; Int_t ntTraPred1=0; | |
188 | Int_t nfTraPred2=0; Int_t ntTraPred2=0; | |
189 | Int_t nfClu1=0; Int_t ntClu1=0; | |
190 | Int_t nfClu2=0; Int_t ntClu2=0; | |
191 | ||
192 | ||
193 | // find the tracklets | |
194 | AliDebug(1,"Looking for tracklets... "); | |
195 | AliDebug(1,Form("Reconstruct: vtx[0] = %f, vtx[1] = %f, vtx[2] = %f",vtx[0],vtx[1],vtx[2])); | |
196 | ||
197 | //########################################################### | |
198 | // Loop on layer 1 : finding theta, phi and z | |
199 | UInt_t key; | |
200 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { | |
201 | Float_t x = fClustersLay1[iC1][0] - vtx[0]; | |
202 | Float_t y = fClustersLay1[iC1][1] - vtx[1]; | |
203 | Float_t z = fClustersLay1[iC1][2] - vtx[2]; | |
204 | ||
205 | Float_t r = TMath::Sqrt(x*x + y*y +z*z); | |
206 | ||
207 | fClustersLay1[iC1][0] = TMath::ACos(z/r); // Store Theta | |
208 | fClustersLay1[iC1][1] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi | |
209 | fClustersLay1[iC1][2] = z; // Store z | |
210 | ||
211 | // find the Radius and the chip corresponding to the extrapolation point | |
212 | ||
213 | found=FindChip(key, 1, vtx, fClustersLay1[iC1][0],fClustersLay1[iC1][1]); | |
214 | if (!found) { | |
215 | AliDebug(1,Form("Reconstruct: cannot find chip prediction on outer layer for cluster %d on the inner layer",iC1)); | |
216 | key=999999; // also some other actions should be taken if not Found | |
217 | } | |
218 | nfTraPred2+=(Int_t)found; // this for debugging purpose | |
219 | ntTraPred2++; // to check efficiency of the method FindChip | |
220 | fChipPredOnLay2[iC1] = key; | |
221 | fAssociationFlag1[iC1] = kFALSE; | |
222 | ||
223 | if (fHistOn) { | |
224 | Float_t eta=fClustersLay1[iC1][0]; | |
225 | eta= TMath::Tan(eta/2.); | |
226 | eta=-TMath::Log(eta); | |
227 | fhetaClustersLay1->Fill(eta); | |
228 | fhphiClustersLay1->Fill(fClustersLay1[iC1][1]); | |
229 | } | |
230 | } | |
231 | ||
232 | // Loop on layer 2 : finding theta, phi and r | |
233 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { | |
234 | Float_t x = fClustersLay2[iC2][0] - vtx[0]; | |
235 | Float_t y = fClustersLay2[iC2][1] - vtx[1]; | |
236 | Float_t z = fClustersLay2[iC2][2] - vtx[2]; | |
237 | ||
238 | Float_t r = TMath::Sqrt(x*x + y*y +z*z); | |
239 | ||
240 | fClustersLay2[iC2][0] = TMath::ACos(z/r); // Store Theta | |
241 | fClustersLay2[iC2][1] = TMath::Pi() + TMath::ATan2(-y,-x); // Store Phi (done properly in the range [0,2pi]) | |
242 | fClustersLay2[iC2][2] = z; // Store z | |
243 | ||
244 | // find the Radius and the chip corresponding to the extrapolation point | |
245 | ||
246 | found=FindChip(key, 0, vtx, fClustersLay2[iC2][0],fClustersLay2[iC2][1]); | |
247 | if (!found) { | |
248 | AliWarning(Form("Reconstruct: cannot find chip prediction on inner layer for cluster %d on the outer layer",iC2)); | |
249 | key=999999; | |
250 | } | |
251 | nfTraPred1+=(Int_t)found; // this for debugging purpose | |
252 | ntTraPred1++; // to check efficiency of the method FindChip | |
253 | fChipPredOnLay1[iC2] = key; | |
254 | fAssociationFlag[iC2] = kFALSE; | |
255 | ||
256 | if (fHistOn) { | |
257 | Float_t eta=fClustersLay2[iC2][0]; | |
258 | eta= TMath::Tan(eta/2.); | |
259 | eta=-TMath::Log(eta); | |
260 | fhetaClustersLay2->Fill(eta); | |
261 | fhphiClustersLay2->Fill(fClustersLay2[iC2][1]); | |
262 | } | |
263 | } | |
264 | ||
265 | //########################################################### | |
266 | ||
267 | // First part : Extrapolation to Layer 2 | |
268 | ||
269 | // Loop on layer 1 | |
270 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { | |
271 | ||
272 | // reset of variables for multiple candidates | |
273 | Int_t iC2WithBestDist = 0; // reset | |
274 | Float_t distmin = 100.; // just to put a huge number! | |
275 | Float_t dPhimin = 0.; // Used for histograms only! | |
276 | Float_t dThetamin = 0.; // Used for histograms only! | |
277 | Float_t dZetamin = 0.; // Used for histograms only! | |
278 | ||
279 | // in any case, if MC has been required, store statistics of primaries and secondaries | |
280 | if (fMC) { | |
281 | Int_t lab1=(Int_t)fClustersLay1[iC1][3]; | |
282 | Int_t lab2=(Int_t)fClustersLay1[iC1][4]; | |
283 | Int_t lab3=(Int_t)fClustersLay1[iC1][5]; | |
284 | // do it always as a function of the chip number used to built the prediction | |
285 | found=FindChip(key,0,vtx,fClustersLay1[iC1][0],fClustersLay1[iC1][1],fClustersLay1[iC1][2]); | |
286 | if (!found) {AliWarning( | |
287 | Form("Reconstruct MC: cannot find chip on inner layer for cluster %d",iC1)); } | |
288 | else { | |
289 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || | |
290 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || | |
291 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) | |
292 | { // this cluster is from a primary particle | |
293 | fClusterPrimary[key]++; | |
294 | if(fUseOnlySecondaryForPred) continue; // skip this tracklet built with a primary track | |
295 | } else { // this cluster is from a secondary particle | |
296 | fClusterSecondary[key]++; | |
297 | if(fUseOnlyPrimaryForPred) continue; // skip this tracklet built with a secondary track | |
298 | } | |
299 | } | |
300 | // do it as a function of the chip number where you exspect the cluster (i.e. tracklet prediction) | |
301 | // (in case the prediction is reliable) | |
302 | if( fChipPredOnLay2[iC1]<1200) { | |
303 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || | |
304 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || | |
305 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) fPredictionPrimary[fChipPredOnLay2[iC1]]++; | |
306 | else fPredictionSecondary[fChipPredOnLay2[iC1]]++; | |
307 | } | |
308 | } | |
309 | ||
310 | // Loop on layer 2 | |
311 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { | |
312 | ||
313 | // The following excludes double associations | |
314 | if (!fAssociationFlag[iC2]) { | |
315 | ||
316 | // find the difference in angles | |
317 | Float_t dTheta = fClustersLay2[iC2][0] - fClustersLay1[iC1][0]; | |
318 | Float_t dPhi = TMath::Abs(fClustersLay2[iC2][1] - fClustersLay1[iC1][1]); | |
319 | // take into account boundary condition | |
320 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; | |
321 | ||
322 | // find the difference in z (between linear projection from layer 1 | |
323 | // and the actual point: Dzeta= z1/r1*r2 -z2) | |
324 | Float_t r2 = fClustersLay2[iC2][2]/TMath::Cos(fClustersLay2[iC2][0]); | |
325 | Float_t dZeta = TMath::Cos(fClustersLay1[iC1][0])*r2 - fClustersLay2[iC2][2]; | |
326 | ||
327 | if (fHistOn) { | |
328 | fhClustersDPhiAll->Fill(dPhi); | |
329 | fhClustersDThetaAll->Fill(dTheta); | |
330 | fhClustersDZetaAll->Fill(dZeta); | |
331 | fhDPhiVsDThetaAll->Fill(dTheta, dPhi); | |
332 | fhDPhiVsDZetaAll->Fill(dZeta, dPhi); | |
333 | } | |
334 | ||
335 | // make "elliptical" cut in Phi and Zeta! | |
336 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindow/fPhiWindow + | |
337 | dZeta*dZeta/fZetaWindow/fZetaWindow); | |
338 | ||
339 | if (d>1) continue; | |
340 | ||
341 | //look for the minimum distance: the minimum is in iC2WithBestDist | |
342 | if (TMath::Sqrt(dZeta*dZeta+(r2*dPhi*r2*dPhi)) < distmin ) { | |
343 | distmin=TMath::Sqrt(dZeta*dZeta + (r2*dPhi*r2*dPhi)); | |
344 | dPhimin = dPhi; | |
345 | dThetamin = dTheta; | |
346 | dZetamin = dZeta; | |
347 | iC2WithBestDist = iC2; | |
348 | } | |
349 | } | |
350 | } // end of loop over clusters in layer 2 | |
351 | ||
352 | if (distmin<100) { // This means that a cluster in layer 2 was found that matches with iC1 | |
353 | ||
354 | if (fHistOn) { | |
355 | fhClustersDPhiAcc->Fill(dPhimin); | |
356 | fhClustersDThetaAcc->Fill(dThetamin); | |
357 | fhClustersDZetaAcc->Fill(dZetamin); | |
358 | fhDPhiVsDThetaAcc->Fill(dThetamin, dPhimin); | |
359 | fhDPhiVsDZetaAcc->Fill(dZetamin, dPhimin); | |
360 | } | |
361 | ||
362 | if (fOnlyOneTrackletPerC2) fAssociationFlag[iC2WithBestDist] = kTRUE; | |
363 | // flag the association | |
364 | ||
365 | // store the tracklet | |
366 | ||
367 | // use the theta from the clusters in the first layer | |
368 | fTracklets[fNTracklets][0] = fClustersLay1[iC1][0]; | |
369 | // use the phi from the clusters in the first layer | |
370 | fTracklets[fNTracklets][1] = fClustersLay1[iC1][1]; | |
371 | // Store the difference between phi1 and phi2 | |
372 | fTracklets[fNTracklets][2] = fClustersLay1[iC1][1] - fClustersLay2[iC2WithBestDist][1]; | |
373 | ||
374 | // find labels | |
375 | Int_t label1 = 0; | |
376 | Int_t label2 = 0; | |
377 | while (label2 < 3) | |
378 | { | |
379 | if ((Int_t) fClustersLay1[iC1][3+label1] != -2 && (Int_t) fClustersLay1[iC1][3+label1] == (Int_t) fClustersLay2[iC2WithBestDist][3+label2]) | |
380 | break; | |
381 | label1++; | |
382 | if (label1 == 3) | |
383 | { | |
384 | label1 = 0; | |
385 | label2++; | |
386 | } | |
387 | } | |
388 | ||
389 | if (label2 < 3) | |
390 | { | |
391 | fTracklets[fNTracklets][3] = fClustersLay1[iC1][3+label1]; | |
392 | } | |
393 | else | |
394 | { | |
395 | fTracklets[fNTracklets][3] = -2; | |
396 | } | |
397 | ||
398 | if (fHistOn) { | |
399 | Float_t eta=fTracklets[fNTracklets][0]; | |
400 | eta= TMath::Tan(eta/2.); | |
401 | eta=-TMath::Log(eta); | |
402 | fhetaTracklets->Fill(eta); | |
403 | fhphiTracklets->Fill(fTracklets[fNTracklets][1]); | |
404 | } | |
405 | ||
406 | // Check that this cluster is still in the same chip (here you pass also Zvtx for better computation) | |
407 | found=FindChip(key,1,vtx,fClustersLay2[iC2WithBestDist][0],fClustersLay2[iC2WithBestDist][1],fClustersLay2[iC2WithBestDist][2]); | |
408 | if(!found){ | |
409 | AliWarning( | |
410 | Form("Reconstruct: cannot find chip on outer layer for cluster %d",iC2WithBestDist)); | |
411 | key=999999; | |
412 | } | |
413 | nfClu2+=(Int_t)found; // this for debugging purpose | |
414 | ntClu2++; // to check efficiency of the method FindChip | |
415 | if(key<1200) { // the Chip has been found | |
416 | if(fMC) { // this part only for MC | |
417 | // Int_t labc1=(Int_t)fClustersLay2[iC2WithBestDist][3]; | |
418 | // Int_t labc2=(Int_t)fClustersLay2[iC2WithBestDist][4]; | |
419 | // Int_t labc3=(Int_t)fClustersLay2[iC2WithBestDist][5]; | |
420 | if (fUseOnlyDifferentParticle && label2 < 3) continue; // same label (reject it) | |
421 | if (fUseOnlySameParticle && label2 == 3) continue; // different label (reject it) | |
422 | } | |
423 | ||
424 | if (key==fChipPredOnLay2[iC1]) { // this control seems too loose: has to be checked ! | |
425 | // OK, success | |
426 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // success | |
427 | } | |
428 | else { | |
429 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // this should not be a failure | |
430 | // (might be in the tracking tollerance) | |
431 | } | |
432 | } | |
433 | ||
434 | fNTracklets++; | |
435 | ||
436 | } // if any cluster found --> increment statistics by 1 failure (provided you have chip prediction) | |
437 | else if (fChipPredOnLay2[iC1]<1200) fPlaneEffSPD->UpDatePlaneEff(kFALSE,fChipPredOnLay2[iC1]); | |
438 | ||
439 | } // end of loop over clusters in layer 1 | |
440 | ||
441 | fNTracklets1=fNTracklets; | |
442 | ||
443 | //################################################################### | |
444 | ||
445 | // Second part : Interpolation to Layer 1 | |
446 | ||
447 | // Loop on layer 2 | |
448 | for (Int_t iC2=0; iC2<fNClustersLay2; iC2++) { | |
449 | ||
450 | // reset of variables for multiple candidates | |
451 | Int_t iC1WithBestDist = 0; // reset | |
452 | Float_t distmin = 100.; // just to put a huge number! | |
453 | Float_t dPhimin = 0.; // Used for histograms only! | |
454 | Float_t dThetamin = 0.; // Used for histograms only! | |
455 | Float_t dZetamin = 0.; // Used for histograms only! | |
456 | ||
457 | // in any case, if MC has been required, store statistics of primaries and secondaries | |
458 | if (fMC) { | |
459 | Int_t lab1=(Int_t)fClustersLay2[iC2][3]; | |
460 | Int_t lab2=(Int_t)fClustersLay2[iC2][4]; | |
461 | Int_t lab3=(Int_t)fClustersLay2[iC2][5]; | |
462 | // do it always as a function of the chip number used to built the prediction | |
463 | found=FindChip(key,1,vtx,fClustersLay2[iC2][0],fClustersLay2[iC2][1],fClustersLay2[iC2][2]); | |
464 | if (!found) {AliWarning( | |
465 | Form("Reconstruct MC: cannot find chip on outer layer for cluster %d",iC2)); } | |
466 | else { | |
467 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || | |
468 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || | |
469 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) | |
470 | { // this cluster is from a primary particle | |
471 | fClusterPrimary[key]++; | |
472 | if(fUseOnlySecondaryForPred) continue; // skip this tracklet built with a primary track | |
473 | } else { // this cluster is from a secondary particle | |
474 | fClusterSecondary[key]++; | |
475 | if(fUseOnlyPrimaryForPred) continue; // skip this tracklet built with a secondary track | |
476 | } | |
477 | } | |
478 | // do it as a function of the chip number where you exspect the cluster (i.e. tracklet prediction) | |
479 | // (in case the prediction is reliable) | |
480 | if( fChipPredOnLay1[iC2]<1200) { | |
481 | if((lab1 != -2 && PrimaryTrackChecker(lab1,pStack) ) || | |
482 | (lab2 != -2 && PrimaryTrackChecker(lab2,pStack) ) || | |
483 | (lab3 != -2 && PrimaryTrackChecker(lab3,pStack))) fPredictionPrimary[fChipPredOnLay1[iC2]]++; | |
484 | else fPredictionSecondary[fChipPredOnLay1[iC2]]++; | |
485 | } | |
486 | } | |
487 | ||
488 | // Loop on layer 1 | |
489 | for (Int_t iC1=0; iC1<fNClustersLay1; iC1++) { | |
490 | ||
491 | // The following excludes double associations | |
492 | if (!fAssociationFlag1[iC1]) { | |
493 | ||
494 | // find the difference in angles | |
495 | Float_t dTheta = fClustersLay2[iC2][0] - fClustersLay1[iC1][0]; | |
496 | Float_t dPhi = TMath::Abs(fClustersLay2[iC2][1] - fClustersLay1[iC1][1]); | |
497 | // take into account boundary condition | |
498 | if (dPhi>TMath::Pi()) dPhi=2.*TMath::Pi()-dPhi; | |
499 | ||
500 | ||
501 | // find the difference in z (between linear projection from layer 2 | |
502 | // and the actual point: Dzeta= z2/r2*r1 -z1) | |
503 | Float_t r1 = fClustersLay1[iC1][2]/TMath::Cos(fClustersLay1[iC1][0]); | |
504 | Float_t dZeta = TMath::Cos(fClustersLay2[iC2][0])*r1 - fClustersLay1[iC1][2]; | |
505 | ||
506 | ||
507 | if (fHistOn) { | |
508 | fhClustersDPhiInterpAll->Fill(dPhi); | |
509 | fhClustersDThetaInterpAll->Fill(dTheta); | |
510 | fhClustersDZetaInterpAll->Fill(dZeta); | |
511 | fhDPhiVsDThetaInterpAll->Fill(dTheta, dPhi); | |
512 | fhDPhiVsDZetaInterpAll->Fill(dZeta, dPhi); | |
513 | } | |
514 | // make "elliptical" cut in Phi and Zeta! | |
515 | Float_t d = TMath::Sqrt(dPhi*dPhi/fPhiWindowL1/fPhiWindowL1 + | |
516 | dZeta*dZeta/fZetaWindowL1/fZetaWindowL1); | |
517 | ||
518 | if (d>1) continue; | |
519 | ||
520 | //look for the minimum distance: the minimum is in iC1WithBestDist | |
521 | if (TMath::Sqrt(dZeta*dZeta+(r1*dPhi*r1*dPhi)) < distmin ) { | |
522 | distmin=TMath::Sqrt(dZeta*dZeta + (r1*dPhi*r1*dPhi)); | |
523 | dPhimin = dPhi; | |
524 | dThetamin = dTheta; | |
525 | dZetamin = dZeta; | |
526 | iC1WithBestDist = iC1; | |
527 | } | |
528 | } | |
529 | } // end of loop over clusters in layer 1 | |
530 | ||
531 | if (distmin<100) { // This means that a cluster in layer 1 was found that mathes with iC2 | |
532 | ||
533 | if (fHistOn) { | |
534 | fhClustersDPhiInterpAcc->Fill(dPhimin); | |
535 | fhClustersDThetaInterpAcc->Fill(dThetamin); | |
536 | fhClustersDZetaInterpAcc->Fill(dZetamin); | |
537 | fhDPhiVsDThetaInterpAcc->Fill(dThetamin, dPhimin); | |
538 | fhDPhiVsDZetaInterpAcc->Fill(dZetamin, dPhimin); | |
539 | } | |
540 | ||
541 | if (fOnlyOneTrackletPerC1) fAssociationFlag1[iC1WithBestDist] = kTRUE; // flag the association | |
542 | // flag the association | |
543 | ||
544 | // store the tracklet | |
545 | ||
546 | // use the theta from the clusters in the first layer | |
547 | fTracklets[fNTracklets][0] = fClustersLay2[iC2][0]; | |
548 | // use the phi from the clusters in the first layer | |
549 | fTracklets[fNTracklets][1] = fClustersLay2[iC2][1]; | |
550 | // Store the difference between phi1 and phi2 | |
551 | fTracklets[fNTracklets][2] = fClustersLay2[iC2][1] - fClustersLay1[iC1WithBestDist][1]; | |
552 | ||
553 | // find labels | |
554 | Int_t label1 = 0; | |
555 | Int_t label2 = 0; | |
556 | while (label2 < 3) | |
557 | { | |
558 | if ((Int_t) fClustersLay2[iC2][3+label1] != -2 && (Int_t) fClustersLay2[iC2][3+label1] == (Int_t) fClustersLay1[iC1WithBestDist][3+label2]) | |
559 | break; | |
560 | label1++; | |
561 | if (label1 == 3) | |
562 | { | |
563 | label1 = 0; | |
564 | label2++; | |
565 | } | |
566 | } | |
567 | ||
568 | if (label2 < 3) | |
569 | { | |
570 | fTracklets[fNTracklets][3] = fClustersLay2[iC2][3+label1]; | |
571 | } | |
572 | else | |
573 | { | |
574 | fTracklets[fNTracklets][3] = -2; | |
575 | } | |
576 | ||
577 | // Check that this cluster is still in the same chip (here you pass also Zvtx for better computation) | |
578 | found=FindChip(key,0,vtx,fClustersLay1[iC1WithBestDist][0],fClustersLay1[iC1WithBestDist][1],fClustersLay1[iC1WithBestDist][2]); | |
579 | if(!found){ | |
580 | AliWarning( | |
581 | Form("Reconstruct: cannot find chip on inner layer for cluster %d",iC1WithBestDist)); | |
582 | key=999999; | |
583 | } | |
584 | nfClu1+=(Int_t)found; // this for debugging purpose | |
585 | ntClu1++; // to check efficiency of the method FindChip | |
586 | if(key<1200) { | |
587 | if(fMC) { // this part only for MC | |
588 | // Int_t labc1=(Int_t)fClustersLay1[iC1WithBestDist][3]; | |
589 | // Int_t labc2=(Int_t)fClustersLay1[iC1WithBestDist][4]; | |
590 | // Int_t labc3=(Int_t)fClustersLay1[iC1WithBestDist][5]; | |
591 | if (fUseOnlyDifferentParticle && label2 < 3) continue; // same label (reject it) | |
592 | if (fUseOnlySameParticle && label2 == 3) continue; // different label (reject it) | |
593 | } | |
594 | ||
595 | if (key==fChipPredOnLay1[iC2]) { // this control seems too loose: has to be checked ! | |
596 | // OK, success | |
597 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // success | |
598 | } else { | |
599 | fPlaneEffSPD->UpDatePlaneEff(kTRUE,key); // this should not be a failure | |
600 | // (might be in the tracking tollerance) | |
601 | } | |
602 | } | |
603 | ||
604 | fNTracklets++; | |
605 | ||
606 | } // if no cluster found --> increment statistics by 1 failure (provided you have chip prediction) | |
607 | else if (fChipPredOnLay1[iC2]<1200) fPlaneEffSPD->UpDatePlaneEff(kFALSE,fChipPredOnLay1[iC2]); | |
608 | ||
609 | } // end of loop over clusters in layer 2 | |
610 | ||
611 | AliDebug(1,Form("%d tracklets found", fNTracklets)); | |
612 | AliDebug(1,Form(("Eff. of method FindChip for Track pred. on lay 1 = %d / %d"),nfTraPred1,ntTraPred1)); | |
613 | AliDebug(1,Form(("Eff. of method FindChip for Track pred. on lay 2 = %d / %d"),nfTraPred2,ntTraPred2)); | |
614 | AliDebug(1,Form(("Eff. of method FindChip for Cluster on lay 1 = %d / %d"),nfClu1,ntClu1)); | |
615 | AliDebug(1,Form(("Eff. of method FindChip for Cluster on lay 2 = %d / %d"),nfClu2,ntClu2)); | |
616 | } | |
617 | //____________________________________________________________________ | |
618 | Bool_t AliITSTrackleterSPDEff::FindChip(UInt_t &key, Int_t layer, Float_t* vtx, | |
619 | Float_t thetaVtx, Float_t phiVtx, Float_t zVtx) { | |
620 | // | |
621 | // Input: a) layer number in the range [0,1] | |
622 | // b) vtx[3]: actual vertex | |
623 | // c) zVtx \ z of the cluster (-999 for tracklet) computed with respect to vtx | |
624 | // d) thetaVtx > theta and phi of the cluster/tracklet computed with respect to vtx | |
625 | // e) phiVtx / | |
626 | // Output: Unique key to locate a chip | |
627 | // return: kTRUE if succesfull | |
628 | ||
629 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return kFALSE;} | |
630 | Double_t r=GetRLayer(layer); | |
631 | //AliInfo(Form("Radius on layer %d is %f cm",layer,r)); | |
632 | ||
633 | // set phiVtx in the range [0,2pi] | |
634 | if(!SetAngleRange02Pi(phiVtx)) return kFALSE ; | |
635 | ||
636 | Double_t zAbs,phiAbs; // those are the polar coordinate, in the Absolute ALICE Reference | |
637 | // of the intersection of the tracklet with the pixel layer. | |
638 | if (TMath::Abs(zVtx)<100) zAbs=zVtx + vtx[2]; // this is fine only for the cluster, not for the track prediction | |
639 | else zAbs=r/TMath::Tan(thetaVtx) + vtx[2]; // this is the only way to do for the tracklet prediction | |
640 | AliDebug(1,Form("FindChip: vtx[0] = %f, vtx[1] = %f, vtx[2] = %f",vtx[0],vtx[1],vtx[2])); | |
641 | Double_t vtxy[2]={vtx[0],vtx[1]}; | |
642 | if (vtxy[0]*vtxy[1]+vtxy[1]*vtxy[1]>0) { // this method holds only for displaced vertices | |
643 | // this method gives you two interceptions | |
644 | if (!FindIntersectionPolar(vtxy,(Double_t)phiVtx,r,phiAbs)) return kFALSE; | |
645 | // set phiAbs in the range [0,2pi] | |
646 | if(!SetAngleRange02Pi(phiAbs)) return kFALSE; | |
647 | // since Vtx is very close to the ALICE origin, then phiVtx and phiAbs are very close; | |
648 | // therofore you can select the right intersection (among phiAbs1 and phiAbs2) by | |
649 | // taking the closest one to phiVtx | |
650 | AliDebug(1,Form("PhiVtx= %f, PhiAbs= %f",phiVtx,phiAbs)); | |
651 | } else phiAbs=phiVtx; | |
652 | Int_t idet=FindDetectorIndex(layer,phiAbs,zAbs); // this is the detector number | |
653 | ||
654 | // now you need to locate the chip within the idet detector, | |
655 | // starting from the local coordinates in such a detector | |
656 | ||
657 | Float_t locx; // local Cartesian coordinate (to be determined) corresponding to | |
658 | Float_t locz; // the Global Cilindrica coordinate (r,phiAbs,zAbs) . | |
659 | if(!FromGloCilToLocCart(layer,idet,r,phiAbs,zAbs, locx, locz)) return kFALSE; | |
660 | ||
661 | key=fPlaneEffSPD->GetKeyFromDetLocCoord(layer,idet,locx,locz); | |
662 | return kTRUE; | |
663 | } | |
664 | //______________________________________________________________________________ | |
665 | Double_t AliITSTrackleterSPDEff::GetRLayer(Int_t layer) { | |
666 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return -999.;} | |
667 | Int_t i=layer+1; // in AliITSgeomTGeo you count from 1 to 6 ! | |
668 | ||
669 | Double_t xyz[3], &x=xyz[0], &y=xyz[1]; | |
670 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); | |
671 | Double_t r=TMath::Sqrt(x*x + y*y); | |
672 | ||
673 | AliITSgeomTGeo::GetOrigTranslation(i,1,2,xyz); | |
674 | r += TMath::Sqrt(x*x + y*y); | |
675 | AliITSgeomTGeo::GetOrigTranslation(i,2,1,xyz); | |
676 | r += TMath::Sqrt(x*x + y*y); | |
677 | AliITSgeomTGeo::GetOrigTranslation(i,2,2,xyz); | |
678 | r += TMath::Sqrt(x*x + y*y); | |
679 | r*=0.25; | |
680 | return r; | |
681 | } | |
682 | //______________________________________________________________________________ | |
683 | Bool_t AliITSTrackleterSPDEff::FromGloCilToLocCart(Int_t ilayer,Int_t idet, Double_t r, Double_t phi, Double_t z, | |
684 | Float_t &xloc, Float_t &zloc) { | |
685 | // this method transform Global Cilindrical coordinates into local (i.e. module) | |
686 | // cartesian coordinates | |
687 | // | |
688 | //Compute Cartesian Global Coordinate | |
689 | Double_t xyzGlob[3],xyzLoc[3]; | |
690 | xyzGlob[2]=z; | |
691 | xyzGlob[0]=r*TMath::Cos(phi); | |
692 | xyzGlob[1]=r*TMath::Sin(phi); | |
693 | ||
694 | xloc=0.; | |
695 | zloc=0.; | |
696 | ||
697 | if(idet<0) return kFALSE; | |
698 | ||
699 | Int_t ndet=AliITSgeomTGeo::GetNDetectors(ilayer+1); // layers from 1 to 6 | |
700 | Int_t lad = Int_t(idet/ndet) + 1; | |
701 | Int_t det = idet - (lad-1)*ndet + 1; | |
702 | ||
703 | AliITSgeomTGeo::GlobalToLocal(ilayer+1,lad,det,xyzGlob,xyzLoc); | |
704 | ||
705 | xloc = (Float_t)xyzLoc[0]; | |
706 | zloc = (Float_t)xyzLoc[2]; | |
707 | ||
708 | return kTRUE; | |
709 | } | |
710 | //______________________________________________________________________________ | |
711 | Int_t AliITSTrackleterSPDEff::FindDetectorIndex(Int_t layer, Double_t phi, Double_t z) { | |
712 | //-------------------------------------------------------------------- | |
713 | //This function finds the detector crossed by the track | |
714 | //-------------------------------------------------------------------- | |
715 | if(layer<0 || layer >1) {AliWarning("Wrong layer: should be 0 or 1!"); return -1;} | |
716 | Int_t i=layer+1; // in AliITSgeomTGeo you count from 1 to 6 ! | |
717 | Int_t nladders=AliITSgeomTGeo::GetNLadders(i); | |
718 | Int_t ndetectors=AliITSgeomTGeo::GetNDetectors(i); | |
719 | ||
720 | Double_t xyz[3], &x=xyz[0], &y=xyz[1], &z2=xyz[2]; | |
721 | AliITSgeomTGeo::GetOrigTranslation(i,1,1,xyz); | |
722 | Double_t phiOffset=TMath::ATan2(y,x); | |
723 | Double_t zOffset=z2; | |
724 | ||
725 | Double_t dphi; | |
726 | if (zOffset<0) // old geometry | |
727 | dphi = -(phi-phiOffset); | |
728 | else // new geometry | |
729 | dphi = phi-phiOffset; | |
730 | ||
731 | if (dphi < 0) dphi += 2*TMath::Pi(); | |
732 | else if (dphi >= 2*TMath::Pi()) dphi -= 2*TMath::Pi(); | |
733 | Int_t np=Int_t(dphi*nladders*0.5/TMath::Pi()+0.5); | |
734 | if (np>=nladders) np-=nladders; | |
735 | if (np<0) np+=nladders; | |
736 | ||
737 | Double_t dz=zOffset-z; | |
738 | Double_t nnz = dz*(ndetectors-1)*0.5/zOffset+0.5; | |
739 | Int_t nz = (nnz<0 ? -1 : (Int_t)nnz); | |
740 | if (nz>=ndetectors) {AliDebug(1,Form("too long: nz =%d",nz)); return -1;} | |
741 | if (nz<0) {AliDebug(1,Form("too short: nz =%d",nz)); return -1;} | |
742 | ||
743 | return np*ndetectors + nz; | |
744 | } | |
745 | //____________________________________________________________ | |
746 | Bool_t AliITSTrackleterSPDEff::FindIntersectionPolar(Double_t vtx[2],Double_t phiVtx, Double_t R,Double_t &phi) { | |
747 | // this method find the intersection in xy between a tracklet (straight line) and | |
748 | // a circonference (r=R), using polar coordinates. | |
749 | /* | |
750 | Input: - vtx[2]: actual vertex w.r.t. ALICE reference system | |
751 | - phiVtx: phi angle of the line (tracklet) computed w.r.t. vtx | |
752 | - R: radius of the circle | |
753 | Output: - phi : phi angle of the unique interception in the ALICE Global ref. system | |
754 | ||
755 | Correct method below: you have the equation of a circle (in polar coordinate) w.r.t. Actual vtx: | |
756 | r^2-2*r*r0*cos(phi-phi0) + r0^2 = R^2 , where (r0,phi0) is the centre of the circle | |
757 | In the same system, the equation of a semi-line is: phi=phiVtx; | |
758 | Hence you get one interception only: P=(r,phiVtx) | |
759 | Finally you want P in the ABSOLUTE ALICE system. | |
760 | */ | |
761 | Double_t rO=TMath::Sqrt(vtx[0]*vtx[0]+vtx[1]*vtx[1]); // polar coordinates of the ALICE origin | |
762 | Double_t phiO=TMath::ATan2(-vtx[1],-vtx[0]); // in the system with vtx[2] as origin | |
763 | Double_t bB=-2.*rO*TMath::Cos(phiVtx-phiO); | |
764 | Double_t cC=rO*rO-R*R; | |
765 | Double_t dDelta=bB*bB-4*cC; | |
766 | if(dDelta<0) return kFALSE; | |
767 | Double_t r1,r2; | |
768 | r1=(-bB-TMath::Sqrt(dDelta))/2; | |
769 | r2=(-bB+TMath::Sqrt(dDelta))/2; | |
770 | if(r1*r2>0) { printf("allora non hai capito nulla \n"); return kFALSE;} | |
771 | Double_t r=TMath::Max(r1,r2); // take the positive | |
772 | Double_t pvtx[2]; // Cartesian coordinates of the interception w.r.t. vtx | |
773 | Double_t pP[2]; // Cartesian coordinates of the interception w.r.t. ALICE origin | |
774 | pvtx[0]=r*TMath::Cos(phiVtx); | |
775 | pvtx[1]=r*TMath::Sin(phiVtx); | |
776 | pP[0]=vtx[0]+pvtx[0]; | |
777 | pP[1]=vtx[1]+pvtx[1]; | |
778 | phi=TMath::ATan2(pP[1],pP[0]); | |
779 | return kTRUE; | |
780 | } | |
781 | //___________________________________________________________ | |
782 | Bool_t AliITSTrackleterSPDEff::SetAngleRange02Pi(Double_t &angle) { | |
783 | while(angle >=2*TMath::Pi() || angle<0) { | |
784 | if(angle >= 2*TMath::Pi()) angle-=2*TMath::Pi(); | |
785 | if(angle < 0) angle+=2*TMath::Pi(); | |
786 | } | |
787 | return kTRUE; | |
788 | } | |
789 | //___________________________________________________________ | |
790 | Bool_t AliITSTrackleterSPDEff::PrimaryTrackChecker(Int_t ipart,AliStack* stack) { | |
791 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return kFALSE;} | |
792 | if(!stack) {AliError("null pointer to MC stack"); return kFALSE;} | |
793 | if(ipart >= stack->GetNtrack()) {AliError("this track label is not in MC stack"); return kFALSE;} | |
794 | // return stack->IsPhysicalPrimary(ipart); // looking at AliStack.cxx this does not seem to be complete (e.g. Pi0 Dalitz) | |
795 | if(!stack->IsPhysicalPrimary(ipart)) return kFALSE; | |
796 | // like below: as in the correction for Multiplicity (i.e. by hand in macro) | |
797 | TParticle* part = stack->Particle(ipart); | |
798 | TParticle* part0 = stack->Particle(0); // first primary | |
799 | TParticle* partl = stack->Particle(stack->GetNprimary()-1); //last primary | |
800 | if (part0->Vx()-partl->Vx()>0) AliDebug(1,Form("Difference in vtx position between 1th and last primaries %f %f %f", | |
801 | part0->Vx()-partl->Vx(),part0->Vy()-partl->Vy(), part0->Vz()-partl->Vz() )); | |
802 | ||
803 | if (!part || strcmp(part->GetName(),"XXX")==0) {AliWarning("String , not particle ??") ;return kFALSE; } | |
804 | TParticlePDG* pdgPart = part->GetPDG(); | |
805 | if (TMath::Abs(pdgPart->Charge()) < 3) {AliWarning("This seems a quark"); return kFALSE;} | |
806 | ||
807 | Double_t distx = part->Vx() - part0->Vx(); | |
808 | Double_t disty = part->Vy() - part0->Vy(); | |
809 | Double_t distz = part->Vz() - part0->Vz(); | |
810 | Double_t distR=TMath::Sqrt(distx*distx + disty*disty + distz*distz); | |
811 | ||
812 | if (distR > 0.05) {AliDebug(1,Form("True vertex should be %f %f, this particle from %f %f ", | |
813 | part0->Vx(),part0->Vy(),part->Vx(),part->Vy())); | |
814 | return kFALSE; }// primary if within 500 microns from true Vertex | |
815 | ||
816 | if(fUseOnlyStableParticle && DecayingTrackChecker(ipart,stack)<2) return kFALSE; | |
817 | return kTRUE; | |
818 | } | |
819 | //_____________________________________________________________________________________________ | |
820 | Int_t AliITSTrackleterSPDEff::DecayingTrackChecker(Int_t ipart,AliStack* stack) { | |
821 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return 0;} | |
822 | if(!stack) {AliError("null pointer to MC stack"); return 0;} | |
823 | if(ipart >= stack->GetNtrack()) {AliError("this track label is not in MC stack"); return 0;} | |
824 | ||
825 | TParticle* part = stack->Particle(ipart); | |
826 | //TParticle* part0 = stack->Particle(0); // first primary | |
827 | ||
828 | Int_t nret=0; | |
829 | TParticle* dau = 0; | |
830 | Int_t nDau = 0; | |
831 | Int_t firstDau = part->GetFirstDaughter(); | |
832 | if (firstDau > 0) { | |
833 | Int_t lastDau = part->GetLastDaughter(); | |
834 | nDau = lastDau - firstDau + 1; | |
835 | //printf("number of daugthers %d \n",nDau); | |
836 | if (nDau > 0) { | |
837 | //for(Int_t j=firstDau; j<=lastDau; j++) | |
838 | for(Int_t j=firstDau; j<=firstDau; j++) | |
839 | { // only first one | |
840 | dau = stack->Particle(j); | |
841 | Double_t distx = dau->Vx()-part->Vx(); | |
842 | Double_t disty = dau->Vy()-part->Vy(); | |
843 | Double_t distz = dau->Vz()-part->Vz(); | |
844 | Double_t distR = TMath::Sqrt(distx*distx+disty*disty+distz*distz); | |
845 | if (distR > GetRLayer(0)+0.5) nret=1; // decay after first pixel layer | |
846 | if (distR > GetRLayer(1)+0.5) nret=2; // decay after second pixel layer | |
847 | } | |
848 | } | |
849 | } else nret = 3; // stable particle | |
850 | return nret; | |
851 | } | |
852 | //_________________________________________________________________ | |
853 | void AliITSTrackleterSPDEff::InitPredictionMC() { | |
854 | if(!fMC) {AliError("This method works only if SetMC() has been called"); return;} | |
855 | fPredictionPrimary = new Int_t[1200]; | |
856 | fPredictionSecondary = new Int_t[1200]; | |
857 | fClusterPrimary = new Int_t[1200]; | |
858 | fClusterSecondary = new Int_t[1200]; | |
859 | for(Int_t i=0; i<1200; i++) { | |
860 | fPredictionPrimary[i]=0; | |
861 | fPredictionSecondary[i]=0; | |
862 | fPredictionSecondary[i]=0; | |
863 | fClusterSecondary[i]=0; | |
864 | } | |
865 | return; | |
866 | } | |
867 | //______________________________________________________________________ | |
868 | Int_t AliITSTrackleterSPDEff::GetPredictionPrimary(const UInt_t key) const { | |
869 | if (!fMC) {CallWarningMC(); return 0;} | |
870 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} | |
871 | return fPredictionPrimary[(Int_t)key]; | |
872 | } | |
873 | //______________________________________________________________________ | |
874 | Int_t AliITSTrackleterSPDEff::GetPredictionSecondary(const UInt_t key) const { | |
875 | if (!fMC) {CallWarningMC(); return 0;} | |
876 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} | |
877 | return fPredictionSecondary[(Int_t)key]; | |
878 | } | |
879 | //______________________________________________________________________ | |
880 | Int_t AliITSTrackleterSPDEff::GetClusterPrimary(const UInt_t key) const { | |
881 | if (!fMC) {CallWarningMC(); return 0;} | |
882 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} | |
883 | return fClusterPrimary[(Int_t)key]; | |
884 | } | |
885 | //______________________________________________________________________ | |
886 | Int_t AliITSTrackleterSPDEff::GetClusterSecondary(const UInt_t key) const { | |
887 | if (!fMC) {CallWarningMC(); return 0;} | |
888 | if (key>=1200) {AliWarning("You asked for a non existing chip"); return -999;} | |
889 | return fClusterSecondary[(Int_t)key]; | |
890 | } | |
891 | //______________________________________________________________________ | |
892 | void AliITSTrackleterSPDEff::PrintAscii(ostream *os)const{ | |
893 | // Print out some class data values in Ascii Form to output stream | |
894 | // Inputs: | |
895 | // ostream *os Output stream where Ascii data is to be writen | |
896 | // Outputs: | |
897 | // none. | |
898 | // Return: | |
899 | // none. | |
900 | *os << fPhiWindowL1 <<" "<< fZetaWindowL1 << " " << fPhiWindow <<" "<< fZetaWindow ; | |
901 | *os << " " << fMC; | |
902 | if(!fMC) {AliInfo("Writing only cuts, no MC info"); return;} | |
903 | *os << " " << fUseOnlyPrimaryForPred << " " << fUseOnlySecondaryForPred | |
904 | << " " << fUseOnlySameParticle << " " << fUseOnlyDifferentParticle | |
905 | << " " << fUseOnlyStableParticle ; | |
906 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetPredictionPrimary(i) ; | |
907 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetPredictionSecondary(i) ; | |
908 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetClusterPrimary(i) ; | |
909 | for(Int_t i=0;i<1200;i++) *os <<" "<< GetClusterSecondary(i) ; | |
910 | return; | |
911 | } | |
912 | //______________________________________________________________________ | |
913 | void AliITSTrackleterSPDEff::ReadAscii(istream *is){ | |
914 | // Read in some class data values in Ascii Form to output stream | |
915 | // Inputs: | |
916 | // istream *is Input stream where Ascii data is to be read in from | |
917 | // Outputs: | |
918 | // none. | |
919 | // Return: | |
920 | // none. | |
921 | ||
922 | *is >> fPhiWindowL1 >> fZetaWindowL1 >> fPhiWindow >> fZetaWindow; | |
923 | *is >> fMC; | |
924 | if(!fMC) {AliInfo("Reading only cuts, no MC info available");return;} | |
925 | *is >> fUseOnlyPrimaryForPred >> fUseOnlySecondaryForPred | |
926 | >> fUseOnlySameParticle >> fUseOnlyDifferentParticle | |
927 | >> fUseOnlyStableParticle; | |
928 | for(Int_t i=0;i<1200;i++) *is >> fPredictionPrimary[i] ; | |
929 | for(Int_t i=0;i<1200;i++) *is >> fPredictionSecondary[i] ; | |
930 | for(Int_t i=0;i<1200;i++) *is >> fClusterPrimary[i] ; | |
931 | for(Int_t i=0;i<1200;i++) *is >> fClusterSecondary[i] ; | |
932 | return; | |
933 | } | |
934 | //______________________________________________________________________ | |
935 | ostream &operator<<(ostream &os,const AliITSTrackleterSPDEff &s){ | |
936 | // Standard output streaming function | |
937 | // Inputs: | |
938 | // ostream &os output steam | |
939 | // AliITSTrackleterSPDEff &s class to be streamed. | |
940 | // Output: | |
941 | // none. | |
942 | // Return: | |
943 | // ostream &os The stream pointer | |
944 | ||
945 | s.PrintAscii(&os); | |
946 | return os; | |
947 | } | |
948 | //______________________________________________________________________ | |
949 | istream &operator>>(istream &is,AliITSTrackleterSPDEff &s){ | |
950 | // Standard inputput streaming function | |
951 | // Inputs: | |
952 | // istream &is input steam | |
953 | // AliITSTrackleterSPDEff &s class to be streamed. | |
954 | // Output: | |
955 | // none. | |
956 | // Return: | |
957 | // ostream &os The stream pointer | |
958 | ||
959 | //printf("prova %d \n", (Int_t)s.GetMC()); | |
960 | s.ReadAscii(&is); | |
961 | return is; | |
962 | } | |
963 | //______________________________________________________________________ | |
964 | void AliITSTrackleterSPDEff::SavePredictionMC(TString filename) const { | |
965 | if(!fMC) {CallWarningMC(); return;} | |
966 | ofstream out(filename.Data(),ios::out | ios::binary); | |
967 | out << *this; | |
968 | out.close(); | |
969 | return; | |
970 | } | |
971 | //____________________________________________________________________ | |
972 | void AliITSTrackleterSPDEff::ReadPredictionMC(TString filename) { | |
973 | if(!fMC) {CallWarningMC(); return;} | |
974 | if( gSystem->AccessPathName( filename.Data() ) ) { | |
975 | AliError( Form( "file (%s) not found", filename.Data() ) ); | |
976 | return; | |
977 | } | |
978 | ||
979 | ifstream in(filename.Data(),ios::in | ios::binary); | |
980 | in >> *this; | |
981 | in.close(); | |
982 | return; | |
983 | } | |
984 | //____________________________________________________________________ | |
985 | Bool_t AliITSTrackleterSPDEff::SaveHists() { | |
986 | // This method save the histograms on the output file | |
987 | // (only if fHistOn is TRUE). | |
988 | ||
989 | if (!GetHistOn()) return kFALSE; | |
990 | ||
991 | AliITSMultReconstructor::SaveHists(); // this save the histograms of the base class | |
992 | ||
993 | fhClustersDPhiInterpAll->Write(); | |
994 | fhClustersDThetaInterpAll->Write(); | |
995 | fhClustersDZetaInterpAll->Write(); | |
996 | fhDPhiVsDThetaInterpAll->Write(); | |
997 | fhDPhiVsDZetaInterpAll->Write(); | |
998 | ||
999 | fhClustersDPhiInterpAcc->Write(); | |
1000 | fhClustersDThetaInterpAcc->Write(); | |
1001 | fhClustersDZetaInterpAcc->Write(); | |
1002 | fhDPhiVsDThetaInterpAcc->Write(); | |
1003 | fhDPhiVsDZetaInterpAcc->Write(); | |
1004 | ||
1005 | fhetaClustersLay2->Write(); | |
1006 | fhphiClustersLay2->Write(); | |
1007 | return kTRUE; | |
1008 | } | |
1009 | //__________________________________________________________ | |
1010 | Bool_t AliITSTrackleterSPDEff::WriteHistosToFile(TString filename, Option_t* option) { | |
1011 | // | |
1012 | // Saves the histograms into a tree and saves the trees into a file | |
1013 | // | |
1014 | if (!GetHistOn()) return kFALSE; | |
1015 | if (filename.Data()=="") { | |
1016 | AliWarning("WriteHistosToFile: null output filename!"); | |
1017 | return kFALSE; | |
1018 | } | |
1019 | TFile *hFile=new TFile(filename.Data(),option, | |
1020 | "The File containing the histos for SPD efficiency studies with tracklets"); | |
1021 | if(!SaveHists()) return kFALSE; | |
1022 | hFile->Write(); | |
1023 | hFile->Close(); | |
1024 | return kTRUE; | |
1025 | } | |
1026 | //____________________________________________________________ | |
1027 | void AliITSTrackleterSPDEff::BookHistos() { | |
1028 | if (! GetHistOn()) { AliInfo("Call SetHistOn(kTRUE) first"); return;} | |
1029 | fhClustersDPhiInterpAcc = new TH1F("dphiaccInterp", "dphi Interpolation phase", 100,0.,0.1); | |
1030 | fhClustersDPhiInterpAcc->SetDirectory(0); | |
1031 | fhClustersDThetaInterpAcc = new TH1F("dthetaaccInterp","dtheta Interpolation phase",100,-0.1,0.1); | |
1032 | fhClustersDThetaInterpAcc->SetDirectory(0); | |
1033 | fhClustersDZetaInterpAcc = new TH1F("dzetaaccInterp","dzeta Interpolation phase",100,-1.,1.); | |
1034 | fhClustersDZetaInterpAcc->SetDirectory(0); | |
1035 | ||
1036 | fhDPhiVsDZetaInterpAcc = new TH2F("dphiVsDzetaaccInterp","dphiVsDzeta Interpolation phase",100,-1.,1.,100,0.,0.1); | |
1037 | fhDPhiVsDZetaInterpAcc->SetDirectory(0); | |
1038 | fhDPhiVsDThetaInterpAcc = new TH2F("dphiVsDthetaAccInterp","dphiVsDtheta Interpolation phase",100,-0.1,0.1,100,0.,0.1); | |
1039 | fhDPhiVsDThetaInterpAcc->SetDirectory(0); | |
1040 | ||
1041 | fhClustersDPhiInterpAll = new TH1F("dphiallInterp", "dphi Interpolation phase", 100,0.0,0.5); | |
1042 | fhClustersDPhiInterpAll->SetDirectory(0); | |
1043 | fhClustersDThetaInterpAll = new TH1F("dthetaallInterp","dtheta Interpolation phase",100,-0.5,0.5); | |
1044 | fhClustersDThetaInterpAll->SetDirectory(0); | |
1045 | fhClustersDZetaInterpAll = new TH1F("dzetaallInterp","dzeta Interpolation phase",100,-5.,5.); | |
1046 | fhClustersDZetaInterpAll->SetDirectory(0); | |
1047 | ||
1048 | fhDPhiVsDZetaInterpAll = new TH2F("dphiVsDzetaallInterp","dphiVsDzeta Interpolation phase",100,-5.,5.,100,0.,0.5); | |
1049 | fhDPhiVsDZetaInterpAll->SetDirectory(0); | |
1050 | fhDPhiVsDThetaInterpAll = new TH2F("dphiVsDthetaAllInterp","dphiVsDtheta Interpolation phase",100,-0.5,0.5,100,0.,0.5); | |
1051 | fhDPhiVsDThetaInterpAll->SetDirectory(0); | |
1052 | ||
1053 | fhetaClustersLay2 = new TH1F("etaClustersLay2", "etaCl2", 100,-2.,2.); | |
1054 | fhetaClustersLay2->SetDirectory(0); | |
1055 | fhphiClustersLay2 = new TH1F("phiClustersLay2", "phiCl2", 100, 0., 2*TMath::Pi()); | |
1056 | fhphiClustersLay2->SetDirectory(0); | |
1057 | return; | |
1058 | } | |
1059 | //____________________________________________________________ | |
1060 | void AliITSTrackleterSPDEff::DeleteHistos() { | |
1061 | if(fhClustersDPhiInterpAcc) {delete fhClustersDPhiInterpAcc; fhClustersDPhiInterpAcc=0;} | |
1062 | if(fhClustersDThetaInterpAcc) {delete fhClustersDThetaInterpAcc; fhClustersDThetaInterpAcc=0;} | |
1063 | if(fhClustersDZetaInterpAcc) {delete fhClustersDZetaInterpAcc; fhClustersDZetaInterpAcc=0;} | |
1064 | if(fhClustersDPhiInterpAll) {delete fhClustersDPhiInterpAll; fhClustersDPhiInterpAll=0;} | |
1065 | if(fhClustersDThetaInterpAll) {delete fhClustersDThetaInterpAll; fhClustersDThetaInterpAll=0;} | |
1066 | if(fhClustersDZetaInterpAll) {delete fhClustersDZetaInterpAll; fhClustersDZetaInterpAll=0;} | |
1067 | if(fhDPhiVsDThetaInterpAll) {delete fhDPhiVsDThetaInterpAll; fhDPhiVsDThetaInterpAll=0;} | |
1068 | if(fhDPhiVsDThetaInterpAcc) {delete fhDPhiVsDThetaInterpAcc; fhDPhiVsDThetaInterpAcc=0;} | |
1069 | if(fhDPhiVsDZetaInterpAll) {delete fhDPhiVsDZetaInterpAll; fhDPhiVsDZetaInterpAll=0;} | |
1070 | if(fhDPhiVsDZetaInterpAcc) {delete fhDPhiVsDZetaInterpAcc; fhDPhiVsDZetaInterpAcc=0;} | |
1071 | if(fhetaClustersLay2) {delete fhetaClustersLay2; fhetaClustersLay2=0;} | |
1072 | if(fhphiClustersLay2) {delete fhphiClustersLay2; fhphiClustersLay2=0;} | |
1073 | } | |
1074 | //_______________________________________________________________ |