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6951a056 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // | |
17 | // TRD dEdx recon utils | |
18 | // xx | |
19 | // xx | |
20 | // xx | |
21 | // xx | |
22 | // | |
23 | // Xianguo Lu | |
24 | // lu@physi.uni-heidelberg.de | |
25 | // Xianguo.Lu@cern.ch | |
26 | // | |
27 | // | |
28 | ||
29 | #include "TF1.h" | |
30 | #include "TFile.h" | |
31 | #include "TH1D.h" | |
32 | #include "TH2D.h" | |
33 | #include "THnSparse.h" | |
34 | #include "TMath.h" | |
35 | #include "TMatrixD.h" | |
36 | #include "TMinuit.h" | |
37 | #include "TObjArray.h" | |
38 | #include "TRandom3.h" | |
39 | #include "TStopwatch.h" | |
40 | #include "TVectorD.h" | |
41 | ||
42 | #include "TTreeStream.h" | |
43 | ||
44 | #include "AliCDBId.h" | |
45 | #include "AliCDBMetaData.h" | |
46 | #include "AliCDBStorage.h" | |
47 | #include "AliESDEvent.h" | |
48 | #include "AliESDfriendTrack.h" | |
49 | #include "AliESDtrack.h" | |
50 | #include "AliTRDcalibDB.h" | |
51 | #include "AliTRDCalROC.h" | |
52 | #include "AliTRDtrackV1.h" | |
53 | ||
54 | #include "AliTRDdEdxBaseUtils.h" | |
55 | #include "AliTRDdEdxReconUtils.h" | |
56 | ||
57 | #define EPSILON 1e-12 | |
58 | ||
59 | Int_t AliTRDdEdxReconUtils::ApplyCalib(const Int_t nc0, TVectorD *arrayQ, TVectorD *arrayX, const TObjArray *cobj) | |
60 | { | |
61 | // | |
62 | //apply calibration on arrayQ | |
63 | // | |
64 | if(!cobj){ printf("AliTRDdEdxReconUtils::ApplyCalib error gain array null!!\n"); exit(1);} | |
65 | ||
66 | TVectorD tmpq(arrayQ->GetNrows()); | |
67 | TVectorD tmpx(arrayX->GetNrows()); | |
68 | Int_t ncls = 0; | |
69 | ||
70 | const TVectorD * gain = (TVectorD*) cobj->At(0); | |
71 | for(Int_t ii=0; ii<nc0; ii++){ | |
72 | const Double_t dq = (*arrayQ)[ii]; | |
73 | const Int_t xx = (Int_t)(*arrayX)[ii]; | |
74 | const Double_t gg = (*gain)[xx]; | |
75 | ||
76 | if(gg<EPSILON){ | |
77 | continue; | |
78 | } | |
79 | ||
80 | tmpq[ncls] = dq*gg; | |
81 | tmpx[ncls] = xx; | |
82 | ncls++; | |
83 | } | |
84 | ||
85 | (*arrayQ)=tmpq; | |
86 | (*arrayX)=tmpx; | |
87 | ||
88 | return ncls; | |
89 | } | |
90 | ||
91 | Double_t AliTRDdEdxReconUtils::ToyCook(const Bool_t kinvq, Int_t &ncluster, TVectorD *arrayQ, TVectorD *arrayX, const TObjArray *cobj) | |
92 | { | |
93 | // | |
94 | //template for cookdedx | |
95 | // | |
96 | if(cobj){ | |
97 | if(arrayQ && arrayX){ | |
98 | ncluster = ApplyCalib(ncluster, arrayQ, arrayX, cobj); | |
99 | } | |
100 | else{ | |
101 | printf("AliTRDdEdxReconUtils::ToyCook arrayQ arrayX null, applycalib can not be applied!\n"); exit(1); | |
102 | } | |
103 | } | |
104 | ||
105 | Double_t lowFrac =-999, highFrac = -999; | |
106 | if(kinvq){ | |
107 | lowFrac = AliTRDdEdxBaseUtils::Q1Frac(); highFrac = 0.99; | |
108 | } | |
109 | else{ | |
110 | lowFrac = 0.01; highFrac = AliTRDdEdxBaseUtils::Q0Frac(); | |
111 | } | |
112 | ||
113 | Double_t meanQ = AliTRDdEdxBaseUtils::TruncatedMean(ncluster, arrayQ->GetMatrixArray(), lowFrac, highFrac); | |
114 | if(kinvq){ | |
115 | if(meanQ>EPSILON){ | |
116 | meanQ = 1/meanQ; | |
117 | } | |
118 | } | |
119 | ||
120 | return meanQ; | |
121 | } | |
122 | ||
123 | Double_t AliTRDdEdxReconUtils::CombineddEdx(const Bool_t kinvq, Int_t &concls, TVectorD *coarrayQ, TVectorD *coarrayX, const Int_t tpcncls, const TVectorD *tpcarrayQ, const TVectorD *tpcarrayX, const Int_t trdncls, const TVectorD *trdarrayQ, const TVectorD *trdarrayX) | |
124 | { | |
125 | // | |
126 | //combine tpc and trd dedx | |
127 | // | |
128 | ||
129 | for(Int_t iq=0; iq<tpcncls; iq++){ | |
130 | (*coarrayQ)[iq]=(*tpcarrayQ)[iq]; | |
131 | if(tpcarrayX && trdarrayX && coarrayX){ | |
132 | (*coarrayX)[iq]=(*tpcarrayX)[iq]; | |
133 | } | |
134 | } | |
135 | for(Int_t iq=0; iq<trdncls; iq++){ | |
136 | (*coarrayQ)[tpcncls+iq]=(*trdarrayQ)[iq]; | |
137 | if(tpcarrayX && trdarrayX && coarrayX){ | |
138 | (*coarrayX)[tpcncls+iq]=159+(*trdarrayX)[iq]; | |
139 | } | |
140 | } | |
141 | ||
142 | concls=trdncls+tpcncls; | |
143 | ||
144 | const Double_t coQ = ToyCook(kinvq, concls, coarrayQ, coarrayX); | |
145 | ||
146 | return coQ; | |
147 | } | |
148 | ||
149 | Double_t AliTRDdEdxReconUtils::GetAngularCorrection(const AliTRDseedV1 *seed) | |
150 | { | |
151 | // | |
152 | //return angular normalization factor | |
153 | // | |
154 | ||
155 | return TMath::Sqrt(1+seed->GetYref(1)*seed->GetYref(1)+seed->GetZref(1)*seed->GetZref(1)); | |
156 | } | |
157 | ||
158 | Double_t AliTRDdEdxReconUtils::GetPadGain(const Int_t det, const Int_t icol, const Int_t irow) | |
159 | { | |
160 | // | |
161 | //get pad calibration | |
162 | // | |
163 | AliTRDcalibDB* calibration = AliTRDcalibDB::Instance(); | |
164 | if (!calibration) { | |
165 | printf("AliTRDdEdxReconUtils::GetPadCalib No AliTRDcalibDB instance available\n"); exit(1); | |
166 | } | |
167 | AliTRDCalROC * calGainFactorROC = calibration->GetGainFactorROC(det); | |
168 | if(!calGainFactorROC){ | |
169 | printf("AliTRDdEdxReconUtils::GetPadCalib no calGainFactorROC!\n"); exit(1); | |
170 | } | |
171 | ||
172 | Double_t padgain = -999; | |
173 | if( icol >= 0 && | |
174 | icol < calGainFactorROC->GetNcols() && | |
175 | irow >=0 && | |
176 | irow < calGainFactorROC->GetNrows()){ | |
177 | padgain = calGainFactorROC->GetValue(icol, irow); | |
178 | if(padgain<EPSILON){ | |
179 | printf("AliTRDdEdxReconUtils::GetPadGain padgain 0! %f %f -- %d %d %d -- %d %d\n", padgain, EPSILON, det, icol, irow, calGainFactorROC->GetNcols(), calGainFactorROC->GetNrows()); exit(1); | |
180 | } | |
181 | } | |
182 | else{ | |
183 | //printf("\nAliTRDdEdxReconUtils::GetPadGain warning!! indices out of range %d %d %d -- %d %d\n\n", det, icol, irow, calGainFactorROC->GetNcols(), calGainFactorROC->GetNrows() ); | |
184 | } | |
185 | ||
186 | return padgain; | |
187 | } | |
188 | ||
189 | Double_t AliTRDdEdxReconUtils::GetRNDClusterQ(AliTRDcluster *cl) | |
190 | { | |
191 | // | |
192 | //get cluter q from GetRawQ, apply baseline and Kr pad-calibration | |
193 | // | |
194 | ||
195 | const Int_t det = cl->GetDetector(); | |
196 | const Int_t pad3col = cl->GetPadCol(); | |
197 | const Int_t padrow = cl->GetPadRow(); | |
198 | ||
199 | const Double_t baseline = 10; | |
200 | ||
201 | Double_t rndqsum = 0; | |
202 | for(Int_t ii=0; ii<7; ii++){ | |
203 | if(cl->GetSignals()[ii] < EPSILON){//bad pad marked by electronics | |
204 | continue; | |
205 | } | |
206 | ||
207 | const Int_t icol = pad3col+(ii-3); | |
208 | const Double_t padgain = GetPadGain(det, icol, padrow); | |
209 | if(padgain<0){//indices out of range, pad3col near boundary case | |
210 | continue; | |
211 | } | |
212 | ||
213 | const Double_t rndsignal = (cl->GetSignals()[ii] - baseline)/(AliTRDdEdxBaseUtils::IsPadGainOn()? padgain : 1); | |
214 | ||
215 | //sum it anyway even if signal below baseline, as long as the total is positive | |
216 | rndqsum += rndsignal; | |
217 | } | |
218 | ||
219 | return rndqsum; | |
220 | } | |
221 | ||
222 | Double_t AliTRDdEdxReconUtils::GetClusterQ(const Bool_t kinvq, const AliTRDseedV1 * seed, const Int_t itb) | |
223 | { | |
224 | // | |
225 | //get cluster charge | |
226 | // | |
227 | Double_t dq = 0; | |
228 | AliTRDcluster *cl = 0x0; | |
229 | ||
230 | //GetRNDClusterQ(cl)>0 ensures that the total sum of q is above baseline*NsignalPhysical. | |
231 | cl = seed->GetClusters(itb); if(cl && GetRNDClusterQ(cl)>0 ) dq+= GetRNDClusterQ(cl);//cl->GetRawQ(); | |
232 | cl = seed->GetClusters(itb+AliTRDseedV1::kNtb); if(cl && GetRNDClusterQ(cl)>0 ) dq+= GetRNDClusterQ(cl);//cl->GetRawQ(); | |
233 | ||
234 | dq /= GetAngularCorrection(seed); | |
235 | ||
236 | dq /= AliTRDdEdxBaseUtils::QScale(); | |
237 | ||
238 | if(kinvq){ | |
239 | if(dq>EPSILON){ | |
240 | dq = 1/dq; | |
241 | } | |
242 | } | |
243 | ||
244 | return dq; | |
245 | } | |
246 | ||
247 | Int_t AliTRDdEdxReconUtils::GetArrayClusterQ(const Bool_t kinvq, TVectorD *arrayQ, TVectorD *arrayX, const AliTRDtrackV1 *trdtrack, Int_t timeBin0, Int_t timeBin1, Int_t tstep) | |
248 | { | |
249 | // | |
250 | //return nclustter | |
251 | //(if kinvq, return 1/q array), size of array must be larger than 31*6 | |
252 | // | |
253 | if(!arrayQ || arrayQ->GetNrows()< (AliTRDseedV1::kNtb*AliTRDtrackV1::kNplane)){ | |
254 | printf("AliTRDdEdxReconUtils::GetArrayClusterQ error arrayQ null or size too small! %d\n", arrayQ? arrayQ->GetNrows() : -999); exit(1); | |
255 | } | |
256 | if(!arrayX || arrayX->GetNrows()< (AliTRDseedV1::kNtb*AliTRDtrackV1::kNplane)){ | |
257 | printf("AliTRDdEdxReconUtils::GetArrayClusterQ error arrayX null or size too small! %d\n", arrayX? arrayX->GetNrows() : -999); exit(1); | |
258 | } | |
259 | ||
260 | const Int_t mintb = 0; | |
261 | const Int_t maxtb = AliTRDseedV1::kNtb-1; | |
262 | if(timeBin0<mintb) timeBin0=mintb; | |
263 | if(timeBin1>maxtb) timeBin1=maxtb; | |
264 | if(tstep<=0) tstep=1; | |
265 | ||
266 | //============ | |
267 | Int_t tbN=0; | |
268 | Double_t tbQ[200]; | |
269 | Int_t tbBin[200]; | |
270 | ||
271 | for(Int_t ichamber=0; ichamber < AliTRDtrackV1::kNplane; ichamber++){ | |
272 | const AliTRDseedV1 * seed = trdtrack->GetTracklet(ichamber); | |
273 | if(!seed) | |
274 | continue; | |
275 | ||
276 | const Int_t det = seed->GetDetector(); | |
277 | ||
278 | for(Int_t itb=timeBin0; itb<=timeBin1; itb+=tstep){ | |
279 | const Double_t dq = GetClusterQ(kinvq, seed, itb); | |
280 | if(dq<EPSILON) | |
281 | continue; | |
282 | ||
283 | const Int_t gtb = det * AliTRDseedV1::kNtb + itb; | |
284 | ||
285 | tbQ[tbN]=dq; | |
286 | tbBin[tbN]=gtb; | |
287 | tbN++; | |
288 | } | |
289 | } | |
290 | ||
291 | Int_t ncls = 0; | |
292 | for(Int_t iq=0; iq<tbN; iq++){ | |
293 | if(tbQ[iq]<EPSILON) | |
294 | continue; | |
295 | ||
296 | (*arrayQ)[ncls] = tbQ[iq]; | |
297 | (*arrayX)[ncls] = tbBin[iq]; | |
298 | ||
299 | ncls++; | |
300 | } | |
301 | ||
302 | static Int_t kprint = 100; | |
303 | if(kprint<0){ | |
304 | printf("\nAliTRDdEdxReconUtils::GetArrayClusterQ raw cluster-Q\n"); | |
305 | for(Int_t iq=0; iq<ncls; iq++){ | |
306 | const Int_t ichamber = AliTRDdEdxBaseUtils::ToLayer((*arrayX)[iq]); | |
307 | const AliTRDseedV1 * seed = trdtrack->GetTracklet(ichamber); | |
308 | if(!seed){ | |
309 | printf("error seed null!!\n"); exit(1); | |
310 | } | |
311 | const Double_t rawq = (*arrayQ)[iq] * 45. * GetAngularCorrection(seed); | |
312 | printf("esdid=%d; chamber=%d; timebin=%d; rawq= %.3f; myq[%d]= %e;\n", trdtrack->GetESDid(), ichamber, AliTRDdEdxBaseUtils::ToTimeBin((*arrayX)[iq]), rawq, iq, (*arrayQ)[iq]); | |
313 | } | |
314 | printf("\n"); | |
315 | } | |
316 | kprint++; | |
317 | ||
318 | return ncls; | |
319 | } | |
320 | ||
321 | Int_t AliTRDdEdxReconUtils::UpdateArrayX(const Int_t ncls, TVectorD* arrayX) | |
322 | { | |
323 | // | |
324 | //arrayX det*Ntb+itb -> itb | |
325 | // | |
326 | ||
327 | TVectorD countChamber(6); | |
328 | for(Int_t ii = 0; ii<ncls; ii++){ | |
329 | const Int_t xx = (Int_t)(*arrayX)[ii]; | |
330 | const Int_t idet = AliTRDdEdxBaseUtils::ToDetector(xx); | |
331 | ||
332 | const Double_t ich = AliTRDgeometry::GetLayer(idet); | |
333 | const Double_t itb = AliTRDdEdxBaseUtils::ToTimeBin(xx); | |
334 | (*arrayX)[ii] = ich*AliTRDseedV1::kNtb+itb; | |
335 | ||
336 | countChamber[ich] = 1; | |
337 | } | |
338 | ||
339 | const Double_t nch = countChamber.Sum(); | |
340 | return (Int_t) nch; | |
341 | } | |
342 | ||
343 |