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[u/mrichter/AliRoot.git] / TPC / AliTPCclustererMI.cxx
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1c53abe2 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
88cb7938 16/* $Id$ */
1c53abe2 17
18//-------------------------------------------------------
19// Implementation of the TPC clusterer
20//
21// Origin: Marian Ivanov
22//-------------------------------------------------------
23
d7a11555 24#include "AliTPCReconstructor.h"
1c53abe2 25#include "AliTPCclustererMI.h"
26#include "AliTPCclusterMI.h"
27#include <TObjArray.h>
28#include <TFile.h>
65c045f0 29#include "TGraph.h"
30#include "TF1.h"
31#include "TRandom.h"
32#include "AliMathBase.h"
33
1c53abe2 34#include "AliTPCClustersArray.h"
35#include "AliTPCClustersRow.h"
36#include "AliDigits.h"
37#include "AliSimDigits.h"
38#include "AliTPCParam.h"
194b0609 39#include "AliTPCRecoParam.h"
f8aae377 40#include "AliRawReader.h"
41#include "AliTPCRawStream.h"
ef4ad662 42#include "AliRawEventHeaderBase.h"
f8aae377 43#include "AliRunLoader.h"
44#include "AliLoader.h"
cc5e9db0 45#include "Riostream.h"
1c53abe2 46#include <TTree.h>
13116aec 47#include "AliTPCcalibDB.h"
48#include "AliTPCCalPad.h"
49#include "AliTPCCalROC.h"
65c045f0 50#include "TTreeStream.h"
51#include "AliLog.h"
13116aec 52
53
1c53abe2 54ClassImp(AliTPCclustererMI)
55
56
57
2f32844a 58AliTPCclustererMI::AliTPCclustererMI(const AliTPCParam* par, const AliTPCRecoParam * recoParam):
59 fBins(0),
60 fResBins(0),
61 fLoop(0),
62 fMaxBin(0),
63 fMaxTime(0),
64 fMaxPad(0),
65 fSector(-1),
66 fRow(-1),
67 fSign(0),
68 fRx(0),
69 fPadWidth(0),
70 fPadLength(0),
71 fZWidth(0),
72 fPedSubtraction(kFALSE),
73 fIsOldRCUFormat(kFALSE),
ef4ad662 74 fEventHeader(0),
75 fTimeStamp(0),
76 fEventType(0),
2f32844a 77 fInput(0),
78 fOutput(0),
79 fRowCl(0),
80 fRowDig(0),
81 fParam(0),
82 fNcluster(0),
83 fAmplitudeHisto(0),
84 fDebugStreamer(0),
85 fRecoParam(0)
1c53abe2 86{
97f127bb 87 //
88 // COSNTRUCTOR
89 // param - tpc parameters for given file
90 // recoparam - reconstruction parameters
91 //
22c352f8 92 fIsOldRCUFormat = kFALSE;
1c53abe2 93 fInput =0;
94 fOutput=0;
f8aae377 95 fParam = par;
194b0609 96 if (recoParam) {
97 fRecoParam = recoParam;
98 }else{
99 //set default parameters if not specified
100 fRecoParam = AliTPCReconstructor::GetRecoParam();
101 if (!fRecoParam) fRecoParam = AliTPCRecoParam::GetLowFluxParam();
102 }
65c045f0 103 fDebugStreamer = new TTreeSRedirector("TPCsignal.root");
104 fAmplitudeHisto = 0;
105}
106
107AliTPCclustererMI::~AliTPCclustererMI(){
108 DumpHistos();
109 if (fAmplitudeHisto) delete fAmplitudeHisto;
110 if (fDebugStreamer) delete fDebugStreamer;
1c53abe2 111}
22c352f8 112
1c53abe2 113void AliTPCclustererMI::SetInput(TTree * tree)
114{
115 //
116 // set input tree with digits
117 //
118 fInput = tree;
119 if (!fInput->GetBranch("Segment")){
120 cerr<<"AliTPC::Digits2Clusters(): no porper input tree !\n";
121 fInput=0;
122 return;
123 }
124}
125
126void AliTPCclustererMI::SetOutput(TTree * tree)
127{
128 //
129 //
130 fOutput= tree;
131 AliTPCClustersRow clrow;
132 AliTPCClustersRow *pclrow=&clrow;
133 clrow.SetClass("AliTPCclusterMI");
134 clrow.SetArray(1); // to make Clones array
135 fOutput->Branch("Segment","AliTPCClustersRow",&pclrow,32000,200);
136}
137
138
139Float_t AliTPCclustererMI::GetSigmaY2(Int_t iz){
140 // sigma y2 = in digits - we don't know the angle
753797ce 141 Float_t z = iz*fParam->GetZWidth()+fParam->GetNTBinsL1()*fParam->GetZWidth();
1c53abe2 142 Float_t sd2 = (z*fParam->GetDiffL()*fParam->GetDiffL())/
143 (fPadWidth*fPadWidth);
144 Float_t sres = 0.25;
145 Float_t res = sd2+sres;
146 return res;
147}
148
149
150Float_t AliTPCclustererMI::GetSigmaZ2(Int_t iz){
151 //sigma z2 = in digits - angle estimated supposing vertex constraint
753797ce 152 Float_t z = iz*fZWidth+fParam->GetNTBinsL1()*fParam->GetZWidth();
1c53abe2 153 Float_t sd2 = (z*fParam->GetDiffL()*fParam->GetDiffL())/(fZWidth*fZWidth);
154 Float_t angular = fPadLength*(fParam->GetZLength()-z)/(fRx*fZWidth);
155 angular*=angular;
156 angular/=12.;
157 Float_t sres = fParam->GetZSigma()/fZWidth;
158 sres *=sres;
159 Float_t res = angular +sd2+sres;
160 return res;
161}
162
13116aec 163void AliTPCclustererMI::MakeCluster(Int_t k,Int_t max,Float_t *bins, UInt_t /*m*/,
1c53abe2 164AliTPCclusterMI &c)
165{
97f127bb 166 //
167 // k - Make cluster at position k
168 // bins - 2 D array of signals mapped to 1 dimensional array -
169 // max - the number of time bins er one dimension
170 // c - refernce to cluster to be filled
171 //
1c53abe2 172 Int_t i0=k/max; //central pad
173 Int_t j0=k%max; //central time bin
174
175 // set pointers to data
176 //Int_t dummy[5] ={0,0,0,0,0};
13116aec 177 Float_t * matrix[5]; //5x5 matrix with digits - indexing i = 0 ..4 j = -2..2
178 Float_t * resmatrix[5];
1c53abe2 179 for (Int_t di=-2;di<=2;di++){
180 matrix[di+2] = &bins[k+di*max];
181 resmatrix[di+2] = &fResBins[k+di*max];
182 }
183 //build matrix with virtual charge
184 Float_t sigmay2= GetSigmaY2(j0);
185 Float_t sigmaz2= GetSigmaZ2(j0);
186
187 Float_t vmatrix[5][5];
188 vmatrix[2][2] = matrix[2][0];
189 c.SetType(0);
6c024a0e 190 c.SetMax((UShort_t)(vmatrix[2][2])); // write maximal amplitude
1c53abe2 191 for (Int_t di =-1;di <=1;di++)
192 for (Int_t dj =-1;dj <=1;dj++){
193 Float_t amp = matrix[di+2][dj];
194 if ( (amp<2) && (fLoop<2)){
195 // if under threshold - calculate virtual charge
196 Float_t ratio = TMath::Exp(-1.2*TMath::Abs(di)/sigmay2)*TMath::Exp(-1.2*TMath::Abs(dj)/sigmaz2);
197 amp = ((matrix[2][0]-2)*(matrix[2][0]-2)/(matrix[-di+2][-dj]+2))*ratio;
198 if (amp>2) amp = 2;
199 vmatrix[2+di][2+dj]=amp;
200 vmatrix[2+2*di][2+2*dj]=0;
201 if ( (di*dj)!=0){
202 //DIAGONAL ELEMENTS
203 vmatrix[2+2*di][2+dj] =0;
204 vmatrix[2+di][2+2*dj] =0;
205 }
206 continue;
207 }
208 if (amp<4){
209 //if small amplitude - below 2 x threshold - don't consider other one
210 vmatrix[2+di][2+dj]=amp;
211 vmatrix[2+2*di][2+2*dj]=0; // don't take to the account next bin
212 if ( (di*dj)!=0){
213 //DIAGONAL ELEMENTS
214 vmatrix[2+2*di][2+dj] =0;
215 vmatrix[2+di][2+2*dj] =0;
216 }
217 continue;
218 }
219 //if bigger then take everything
220 vmatrix[2+di][2+dj]=amp;
221 vmatrix[2+2*di][2+2*dj]= matrix[2*di+2][2*dj] ;
222 if ( (di*dj)!=0){
223 //DIAGONAL ELEMENTS
224 vmatrix[2+2*di][2+dj] = matrix[2*di+2][dj];
225 vmatrix[2+di][2+2*dj] = matrix[2+di][dj*2];
226 }
227 }
228
229
230
231 Float_t sumw=0;
232 Float_t sumiw=0;
233 Float_t sumi2w=0;
234 Float_t sumjw=0;
235 Float_t sumj2w=0;
236 //
237 for (Int_t i=-2;i<=2;i++)
238 for (Int_t j=-2;j<=2;j++){
239 Float_t amp = vmatrix[i+2][j+2];
240
241 sumw += amp;
242 sumiw += i*amp;
243 sumi2w += i*i*amp;
244 sumjw += j*amp;
245 sumj2w += j*j*amp;
246 }
247 //
248 Float_t meani = sumiw/sumw;
249 Float_t mi2 = sumi2w/sumw-meani*meani;
250 Float_t meanj = sumjw/sumw;
251 Float_t mj2 = sumj2w/sumw-meanj*meanj;
252 //
253 Float_t ry = mi2/sigmay2;
254 Float_t rz = mj2/sigmaz2;
255
256 //
257 if ( ( (ry<0.6) || (rz<0.6) ) && fLoop==2) return;
194b0609 258 if ( (ry <1.2) && (rz<1.2) || (!fRecoParam->GetDoUnfold())) {
259 //
260 //if cluster looks like expected or Unfolding not switched on
261 //standard COG is used
1c53abe2 262 //+1.2 deviation from expected sigma accepted
263 // c.fMax = FitMax(vmatrix,meani,meanj,TMath::Sqrt(sigmay2),TMath::Sqrt(sigmaz2));
264
265 meani +=i0;
266 meanj +=j0;
267 //set cluster parameters
268 c.SetQ(sumw);
269 c.SetY(meani*fPadWidth);
270 c.SetZ(meanj*fZWidth);
271 c.SetSigmaY2(mi2);
272 c.SetSigmaZ2(mj2);
273 AddCluster(c);
274 //remove cluster data from data
275 for (Int_t di=-2;di<=2;di++)
276 for (Int_t dj=-2;dj<=2;dj++){
13116aec 277 resmatrix[di+2][dj] -= vmatrix[di+2][dj+2];
1c53abe2 278 if (resmatrix[di+2][dj]<0) resmatrix[di+2][dj]=0;
279 }
280 resmatrix[2][0] =0;
281 return;
282 }
283 //
284 //unfolding when neccessary
285 //
286
13116aec 287 Float_t * matrix2[7]; //7x7 matrix with digits - indexing i = 0 ..6 j = -3..3
288 Float_t dummy[7]={0,0,0,0,0,0};
1c53abe2 289 for (Int_t di=-3;di<=3;di++){
290 matrix2[di+3] = &bins[k+di*max];
291 if ((k+di*max)<3) matrix2[di+3] = &dummy[3];
292 if ((k+di*max)>fMaxBin-3) matrix2[di+3] = &dummy[3];
293 }
294 Float_t vmatrix2[5][5];
295 Float_t sumu;
296 Float_t overlap;
297 UnfoldCluster(matrix2,vmatrix2,meani,meanj,sumu,overlap);
298 //
299 // c.fMax = FitMax(vmatrix2,meani,meanj,TMath::Sqrt(sigmay2),TMath::Sqrt(sigmaz2));
300 meani +=i0;
301 meanj +=j0;
302 //set cluster parameters
303 c.SetQ(sumu);
304 c.SetY(meani*fPadWidth);
305 c.SetZ(meanj*fZWidth);
306 c.SetSigmaY2(mi2);
307 c.SetSigmaZ2(mj2);
308 c.SetType(Char_t(overlap)+1);
309 AddCluster(c);
310
311 //unfolding 2
312 meani-=i0;
313 meanj-=j0;
314 if (gDebug>4)
315 printf("%f\t%f\n", vmatrix2[2][2], vmatrix[2][2]);
316}
317
318
319
13116aec 320void AliTPCclustererMI::UnfoldCluster(Float_t * matrix2[7], Float_t recmatrix[5][5], Float_t & meani, Float_t & meanj,
1c53abe2 321 Float_t & sumu, Float_t & overlap )
322{
323 //
324 //unfold cluster from input matrix
325 //data corresponding to cluster writen in recmatrix
326 //output meani and meanj
327
328 //take separatelly y and z
329
330 Float_t sum3i[7] = {0,0,0,0,0,0,0};
331 Float_t sum3j[7] = {0,0,0,0,0,0,0};
332
333 for (Int_t k =0;k<7;k++)
334 for (Int_t l = -1; l<=1;l++){
335 sum3i[k]+=matrix2[k][l];
336 sum3j[k]+=matrix2[l+3][k-3];
337 }
338 Float_t mratio[3][3]={{1,1,1},{1,1,1},{1,1,1}};
339 //
340 //unfold y
341 Float_t sum3wi = 0; //charge minus overlap
342 Float_t sum3wio = 0; //full charge
343 Float_t sum3iw = 0; //sum for mean value
344 for (Int_t dk=-1;dk<=1;dk++){
345 sum3wio+=sum3i[dk+3];
346 if (dk==0){
347 sum3wi+=sum3i[dk+3];
348 }
349 else{
350 Float_t ratio =1;
351 if ( ( ((sum3i[dk+3]+3)/(sum3i[3]-3))+1 < (sum3i[2*dk+3]-3)/(sum3i[dk+3]+3))||
352 sum3i[dk+3]<=sum3i[2*dk+3] && sum3i[dk+3]>2 ){
353 Float_t xm2 = sum3i[-dk+3];
354 Float_t xm1 = sum3i[+3];
355 Float_t x1 = sum3i[2*dk+3];
356 Float_t x2 = sum3i[3*dk+3];
cc5e9db0 357 Float_t w11 = TMath::Max((Float_t)(4.*xm1-xm2),(Float_t)0.000001);
358 Float_t w12 = TMath::Max((Float_t)(4 *x1 -x2),(Float_t)0.);
1c53abe2 359 ratio = w11/(w11+w12);
360 for (Int_t dl=-1;dl<=1;dl++)
361 mratio[dk+1][dl+1] *= ratio;
362 }
363 Float_t amp = sum3i[dk+3]*ratio;
364 sum3wi+=amp;
365 sum3iw+= dk*amp;
366 }
367 }
368 meani = sum3iw/sum3wi;
369 Float_t overlapi = (sum3wio-sum3wi)/sum3wio;
370
371
372
373 //unfold z
374 Float_t sum3wj = 0; //charge minus overlap
375 Float_t sum3wjo = 0; //full charge
376 Float_t sum3jw = 0; //sum for mean value
377 for (Int_t dk=-1;dk<=1;dk++){
378 sum3wjo+=sum3j[dk+3];
379 if (dk==0){
380 sum3wj+=sum3j[dk+3];
381 }
382 else{
383 Float_t ratio =1;
384 if ( ( ((sum3j[dk+3]+3)/(sum3j[3]-3))+1 < (sum3j[2*dk+3]-3)/(sum3j[dk+3]+3)) ||
385 (sum3j[dk+3]<=sum3j[2*dk+3] && sum3j[dk+3]>2)){
386 Float_t xm2 = sum3j[-dk+3];
387 Float_t xm1 = sum3j[+3];
388 Float_t x1 = sum3j[2*dk+3];
389 Float_t x2 = sum3j[3*dk+3];
cc5e9db0 390 Float_t w11 = TMath::Max((Float_t)(4.*xm1-xm2),(Float_t)0.000001);
391 Float_t w12 = TMath::Max((Float_t)(4 *x1 -x2),(Float_t)0.);
1c53abe2 392 ratio = w11/(w11+w12);
393 for (Int_t dl=-1;dl<=1;dl++)
394 mratio[dl+1][dk+1] *= ratio;
395 }
396 Float_t amp = sum3j[dk+3]*ratio;
397 sum3wj+=amp;
398 sum3jw+= dk*amp;
399 }
400 }
401 meanj = sum3jw/sum3wj;
402 Float_t overlapj = (sum3wjo-sum3wj)/sum3wjo;
403 overlap = Int_t(100*TMath::Max(overlapi,overlapj)+3);
404 sumu = (sum3wj+sum3wi)/2.;
405
406 if (overlap ==3) {
407 //if not overlap detected remove everything
408 for (Int_t di =-2; di<=2;di++)
409 for (Int_t dj =-2; dj<=2;dj++){
410 recmatrix[di+2][dj+2] = matrix2[3+di][dj];
411 }
412 }
413 else{
414 for (Int_t di =-1; di<=1;di++)
415 for (Int_t dj =-1; dj<=1;dj++){
416 Float_t ratio =1;
417 if (mratio[di+1][dj+1]==1){
418 recmatrix[di+2][dj+2] = matrix2[3+di][dj];
419 if (TMath::Abs(di)+TMath::Abs(dj)>1){
420 recmatrix[2*di+2][dj+2] = matrix2[3+2*di][dj];
421 recmatrix[di+2][2*dj+2] = matrix2[3+di][2*dj];
422 }
423 recmatrix[2*di+2][2*dj+2] = matrix2[3+2*di][2*dj];
424 }
425 else
426 {
427 //if we have overlap in direction
428 recmatrix[di+2][dj+2] = mratio[di+1][dj+1]* matrix2[3+di][dj];
429 if (TMath::Abs(di)+TMath::Abs(dj)>1){
cc5e9db0 430 ratio = TMath::Min((Float_t)(recmatrix[di+2][dj+2]/(matrix2[3+0*di][1*dj]+1)),(Float_t)1.);
1c53abe2 431 recmatrix[2*di+2][dj+2] = ratio*recmatrix[di+2][dj+2];
432 //
cc5e9db0 433 ratio = TMath::Min((Float_t)(recmatrix[di+2][dj+2]/(matrix2[3+1*di][0*dj]+1)),(Float_t)1.);
1c53abe2 434 recmatrix[di+2][2*dj+2] = ratio*recmatrix[di+2][dj+2];
435 }
436 else{
437 ratio = recmatrix[di+2][dj+2]/matrix2[3][0];
438 recmatrix[2*di+2][2*dj+2] = ratio*recmatrix[di+2][dj+2];
439 }
440 }
441 }
442 }
443 if (gDebug>4)
444 printf("%f\n", recmatrix[2][2]);
445
446}
447
448Float_t AliTPCclustererMI::FitMax(Float_t vmatrix[5][5], Float_t y, Float_t z, Float_t sigmay, Float_t sigmaz)
449{
450 //
451 // estimate max
452 Float_t sumteor= 0;
453 Float_t sumamp = 0;
454
455 for (Int_t di = -1;di<=1;di++)
456 for (Int_t dj = -1;dj<=1;dj++){
457 if (vmatrix[2+di][2+dj]>2){
458 Float_t teor = TMath::Gaus(di,y,sigmay*1.2)*TMath::Gaus(dj,z,sigmaz*1.2);
459 sumteor += teor*vmatrix[2+di][2+dj];
460 sumamp += vmatrix[2+di][2+dj]*vmatrix[2+di][2+dj];
461 }
462 }
463 Float_t max = sumamp/sumteor;
464 return max;
465}
466
467void AliTPCclustererMI::AddCluster(AliTPCclusterMI &c){
468 //
469 // transform cluster to the global coordinata
470 // add the cluster to the array
471 //
472 Float_t meani = c.GetY()/fPadWidth;
473 Float_t meanj = c.GetZ()/fZWidth;
474
475 Int_t ki = TMath::Nint(meani-3);
476 if (ki<0) ki=0;
477 if (ki>=fMaxPad) ki = fMaxPad-1;
478 Int_t kj = TMath::Nint(meanj-3);
479 if (kj<0) kj=0;
480 if (kj>=fMaxTime-3) kj=fMaxTime-4;
481 // ki and kj shifted to "real" coordinata
f8aae377 482 if (fRowDig) {
483 c.SetLabel(fRowDig->GetTrackIDFast(kj,ki,0)-2,0);
484 c.SetLabel(fRowDig->GetTrackIDFast(kj,ki,1)-2,1);
485 c.SetLabel(fRowDig->GetTrackIDFast(kj,ki,2)-2,2);
486 }
1c53abe2 487
488
489 Float_t s2 = c.GetSigmaY2();
490 Float_t w=fParam->GetPadPitchWidth(fSector);
491
492 c.SetSigmaY2(s2*w*w);
493 s2 = c.GetSigmaZ2();
494 w=fZWidth;
495 c.SetSigmaZ2(s2*w*w);
496 c.SetY((meani - 2.5 - 0.5*fMaxPad)*fParam->GetPadPitchWidth(fSector));
adefcaa6 497 if (!fRecoParam->GetBYMirror()){
498 if (fSector%36>17){
499 c.SetY(-(meani - 2.5 - 0.5*fMaxPad)*fParam->GetPadPitchWidth(fSector));
500 }
501 }
1c53abe2 502 c.SetZ(fZWidth*(meanj-3));
753797ce 503 c.SetZ(c.GetZ() - 3.*fParam->GetZSigma() + fParam->GetNTBinsL1()*fParam->GetZWidth()); // PASA delay + L1 delay
1c53abe2 504 c.SetZ(fSign*(fParam->GetZLength() - c.GetZ()));
508541c7 505 c.SetX(fRx);
506 c.SetDetector(fSector);
507 c.SetRow(fRow);
508
1c53abe2 509 if (ki<=1 || ki>=fMaxPad-1 || kj==1 || kj==fMaxTime-2) {
510 //c.SetSigmaY2(c.GetSigmaY2()*25.);
511 //c.SetSigmaZ2(c.GetSigmaZ2()*4.);
512 c.SetType(-(c.GetType()+3)); //edge clusters
513 }
514 if (fLoop==2) c.SetType(100);
515
516 TClonesArray * arr = fRowCl->GetArray();
45bcf167 517 // AliTPCclusterMI * cl =
518 new ((*arr)[fNcluster]) AliTPCclusterMI(c);
1c53abe2 519
520 fNcluster++;
521}
522
523
524//_____________________________________________________________________________
f8aae377 525void AliTPCclustererMI::Digits2Clusters()
1c53abe2 526{
527 //-----------------------------------------------------------------
528 // This is a simple cluster finder.
529 //-----------------------------------------------------------------
1c53abe2 530
f8aae377 531 if (!fInput) {
532 Error("Digits2Clusters", "input tree not initialised");
1c53abe2 533 return;
534 }
535
f8aae377 536 if (!fOutput) {
537 Error("Digits2Clusters", "output tree not initialised");
538 return;
1c53abe2 539 }
540
13116aec 541 AliTPCCalPad * gainTPC = AliTPCcalibDB::Instance()->GetPadGainFactor();
542
1c53abe2 543 AliSimDigits digarr, *dummy=&digarr;
544 fRowDig = dummy;
545 fInput->GetBranch("Segment")->SetAddress(&dummy);
546 Stat_t nentries = fInput->GetEntries();
547
f8aae377 548 fMaxTime=fParam->GetMaxTBin()+6; // add 3 virtual time bins before and 3 after
1c53abe2 549
1c53abe2 550 Int_t nclusters = 0;
13116aec 551
1c53abe2 552 for (Int_t n=0; n<nentries; n++) {
553 fInput->GetEvent(n);
508541c7 554 if (!fParam->AdjustSectorRow(digarr.GetID(),fSector,fRow)) {
1c53abe2 555 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
556 continue;
557 }
508541c7 558 Int_t row = fRow;
13116aec 559 AliTPCCalROC * gainROC = gainTPC->GetCalROC(fSector); // pad gains per given sector
560
561 //
1c53abe2 562 AliTPCClustersRow *clrow= new AliTPCClustersRow();
563 fRowCl = clrow;
564 clrow->SetClass("AliTPCclusterMI");
565 clrow->SetArray(1);
566
567 clrow->SetID(digarr.GetID());
568 fOutput->GetBranch("Segment")->SetAddress(&clrow);
f8aae377 569 fRx=fParam->GetPadRowRadii(fSector,row);
1c53abe2 570
571
f8aae377 572 const Int_t kNIS=fParam->GetNInnerSector(), kNOS=fParam->GetNOuterSector();
1c53abe2 573 fZWidth = fParam->GetZWidth();
574 if (fSector < kNIS) {
f8aae377 575 fMaxPad = fParam->GetNPadsLow(row);
1c53abe2 576 fSign = (fSector < kNIS/2) ? 1 : -1;
f8aae377 577 fPadLength = fParam->GetPadPitchLength(fSector,row);
578 fPadWidth = fParam->GetPadPitchWidth();
1c53abe2 579 } else {
f8aae377 580 fMaxPad = fParam->GetNPadsUp(row);
1c53abe2 581 fSign = ((fSector-kNIS) < kNOS/2) ? 1 : -1;
f8aae377 582 fPadLength = fParam->GetPadPitchLength(fSector,row);
583 fPadWidth = fParam->GetPadPitchWidth();
1c53abe2 584 }
585
586
587 fMaxBin=fMaxTime*(fMaxPad+6); // add 3 virtual pads before and 3 after
13116aec 588 fBins =new Float_t[fMaxBin];
589 fResBins =new Float_t[fMaxBin]; //fBins with residuals after 1 finder loop
590 memset(fBins,0,sizeof(Float_t)*fMaxBin);
591 memset(fResBins,0,sizeof(Float_t)*fMaxBin);
1c53abe2 592
593 if (digarr.First()) //MI change
594 do {
13116aec 595 Float_t dig=digarr.CurrentDigit();
f8aae377 596 if (dig<=fParam->GetZeroSup()) continue;
1c53abe2 597 Int_t j=digarr.CurrentRow()+3, i=digarr.CurrentColumn()+3;
9d4f75a9 598 Float_t gain = gainROC->GetValue(row,digarr.CurrentColumn());
13116aec 599 fBins[i*fMaxTime+j]=dig/gain;
1c53abe2 600 } while (digarr.Next());
601 digarr.ExpandTrackBuffer();
602
f8aae377 603 FindClusters();
8569a2b0 604
605 fOutput->Fill();
88cb7938 606 delete clrow;
607 nclusters+=fNcluster;
8569a2b0 608 delete[] fBins;
609 delete[] fResBins;
88cb7938 610 }
f8aae377 611
19dd5b2f 612 Info("Digits2Clusters", "Number of found clusters : %d", nclusters);
f8aae377 613}
614
615void AliTPCclustererMI::Digits2Clusters(AliRawReader* rawReader)
616{
617//-----------------------------------------------------------------
22c352f8 618// This is a cluster finder for the TPC raw data.
619// The method assumes NO ordering of the altro channels.
620// The pedestal subtraction can be switched on and off
621// using an option of the TPC reconstructor
f8aae377 622//-----------------------------------------------------------------
623
624 if (!fOutput) {
625 Error("Digits2Clusters", "output tree not initialised");
626 return;
627 }
628
f8aae377 629 fRowDig = NULL;
adefcaa6 630 AliTPCROC * roc = AliTPCROC::Instance();
22c352f8 631 AliTPCCalPad * gainTPC = AliTPCcalibDB::Instance()->GetPadGainFactor();
adefcaa6 632 AliTPCRawStream input(rawReader);
ef4ad662 633 fEventHeader = (AliRawEventHeaderBase*)rawReader->GetEventHeader();
634 if (fEventHeader){
635 fTimeStamp = fEventHeader->Get("Timestamp");
636 fEventType = fEventHeader->Get("Type");
637 }
638
22c352f8 639
f8aae377 640 Int_t nclusters = 0;
88cb7938 641
f8aae377 642 fMaxTime = fParam->GetMaxTBin() + 6; // add 3 virtual time bins before and 3 after
643 const Int_t kNIS = fParam->GetNInnerSector();
644 const Int_t kNOS = fParam->GetNOuterSector();
645 const Int_t kNS = kNIS + kNOS;
646 fZWidth = fParam->GetZWidth();
647 Int_t zeroSup = fParam->GetZeroSup();
adefcaa6 648 //
649 //alocate memory for sector - maximal case
650 //
22c352f8 651 Float_t** allBins = NULL;
652 Float_t** allBinsRes = NULL;
adefcaa6 653 Int_t nRowsMax = roc->GetNRows(roc->GetNSector()-1);
654 Int_t nPadsMax = roc->GetNPads(roc->GetNSector()-1,nRowsMax-1);
655 allBins = new Float_t*[nRowsMax];
656 allBinsRes = new Float_t*[nRowsMax];
657 for (Int_t iRow = 0; iRow < nRowsMax; iRow++) {
658 //
659 Int_t maxBin = fMaxTime*(nPadsMax+6); // add 3 virtual pads before and 3 after
660 allBins[iRow] = new Float_t[maxBin];
661 allBinsRes[iRow] = new Float_t[maxBin];
662 memset(allBins[iRow],0,sizeof(Float_t)*maxBin);
663 memset(allBinsRes[iRow],0,sizeof(Float_t)*maxBin);
664 }
665 //
22c352f8 666 // Loop over sectors
adefcaa6 667 //
22c352f8 668 for(fSector = 0; fSector < kNS; fSector++) {
f8aae377 669
22c352f8 670 AliTPCCalROC * gainROC = gainTPC->GetCalROC(fSector); // pad gains per given sector
671
672 Int_t nRows = 0;
673 Int_t nDDLs = 0, indexDDL = 0;
674 if (fSector < kNIS) {
675 nRows = fParam->GetNRowLow();
676 fSign = (fSector < kNIS/2) ? 1 : -1;
677 nDDLs = 2;
678 indexDDL = fSector * 2;
679 }
680 else {
681 nRows = fParam->GetNRowUp();
682 fSign = ((fSector-kNIS) < kNOS/2) ? 1 : -1;
683 nDDLs = 4;
684 indexDDL = (fSector-kNIS) * 4 + kNIS * 2;
685 }
686
22c352f8 687 for (Int_t iRow = 0; iRow < nRows; iRow++) {
688 Int_t maxPad;
689 if (fSector < kNIS)
690 maxPad = fParam->GetNPadsLow(iRow);
691 else
692 maxPad = fParam->GetNPadsUp(iRow);
693
694 Int_t maxBin = fMaxTime*(maxPad+6); // add 3 virtual pads before and 3 after
22c352f8 695 memset(allBins[iRow],0,sizeof(Float_t)*maxBin);
696 memset(allBinsRes[iRow],0,sizeof(Float_t)*maxBin);
697 }
698
699 // Loas the raw data for corresponding DDLs
700 rawReader->Reset();
22c352f8 701 input.SetOldRCUFormat(fIsOldRCUFormat);
362c9d61 702 rawReader->Select("TPC",indexDDL,indexDDL+nDDLs-1);
adefcaa6 703 Int_t digCounter=0;
22c352f8 704 // Begin loop over altro data
adefcaa6 705 Bool_t calcPedestal = fRecoParam->GetCalcPedestal();
706 Float_t gain =1;
707 Int_t lastPad=-1;
22c352f8 708 while (input.Next()) {
adefcaa6 709 digCounter++;
22c352f8 710 if (input.GetSector() != fSector)
711 AliFatal(Form("Sector index mismatch ! Expected (%d), but got (%d) !",fSector,input.GetSector()));
712
22c352f8 713
714 Int_t iRow = input.GetRow();
715 if (iRow < 0 || iRow >= nRows)
716 AliFatal(Form("Pad-row index (%d) outside the range (%d -> %d) !",
717 iRow, 0, nRows -1));
adefcaa6 718 //pad
719 Int_t iPad = input.GetPad();
720 if (iPad < 0 || iPad >= nPadsMax)
22c352f8 721 AliFatal(Form("Pad index (%d) outside the range (%d -> %d) !",
adefcaa6 722 iPad, 0, nPadsMax-1));
723 if (iPad!=lastPad){
724 gain = gainROC->GetValue(iRow,iPad);
725 lastPad = iPad;
726 }
727 iPad+=3;
728 //time
729 Int_t iTimeBin = input.GetTime();
730 if ( iTimeBin < 0 || iTimeBin >= fParam->GetMaxTBin())
22c352f8 731 AliFatal(Form("Timebin index (%d) outside the range (%d -> %d) !",
adefcaa6 732 iTimeBin, 0, iTimeBin -1));
733 iTimeBin+=3;
734 //signal
22c352f8 735 Float_t signal = input.GetSignal();
adefcaa6 736 if (!calcPedestal && signal <= zeroSup) continue;
22c352f8 737 allBins[iRow][iPad*fMaxTime+iTimeBin] = signal/gain;
65c045f0 738 allBins[iRow][iPad*fMaxTime+0] = 1; // pad with signal
22c352f8 739 } // End of the loop over altro data
adefcaa6 740 //
741 //
22c352f8 742 // Now loop over rows and perform pedestal subtraction
adefcaa6 743 if (digCounter==0) continue;
194b0609 744 // if (fPedSubtraction) {
adefcaa6 745 if (calcPedestal) {
22c352f8 746 for (Int_t iRow = 0; iRow < nRows; iRow++) {
747 Int_t maxPad;
748 if (fSector < kNIS)
749 maxPad = fParam->GetNPadsLow(iRow);
750 else
751 maxPad = fParam->GetNPadsUp(iRow);
752
753 for (Int_t iPad = 0; iPad < maxPad + 6; iPad++) {
65c045f0 754 if (allBins[iRow][iPad*fMaxTime+0] !=1) continue; // no data
22c352f8 755 Float_t *p = &allBins[iRow][iPad*fMaxTime+3];
65c045f0 756 //Float_t pedestal = TMath::Median(fMaxTime, p);
757 Int_t id[3] = {fSector, iRow, iPad-3};
ef4ad662 758 Double_t rms=0;
759 Float_t pedestal = ProcesSignal(p, fMaxTime, id, rms);
22c352f8 760 for (Int_t iTimeBin = 0; iTimeBin < fMaxTime; iTimeBin++) {
761 allBins[iRow][iPad*fMaxTime+iTimeBin] -= pedestal;
7fef31a6 762 if (iTimeBin < AliTPCReconstructor::GetRecoParam()->GetFirstBin())
763 allBins[iRow][iPad*fMaxTime+iTimeBin] = 0;
764 if (iTimeBin > AliTPCReconstructor::GetRecoParam()->GetLastBin())
765 allBins[iRow][iPad*fMaxTime+iTimeBin] = 0;
22c352f8 766 if (allBins[iRow][iPad*fMaxTime+iTimeBin] < zeroSup)
767 allBins[iRow][iPad*fMaxTime+iTimeBin] = 0;
ef4ad662 768 if (allBins[iRow][iPad*fMaxTime+iTimeBin] < 3.0*rms) // 3 sigma cut on RMS
769 allBins[iRow][iPad*fMaxTime+iTimeBin] = 0;
22c352f8 770 }
771 }
f8aae377 772 }
22c352f8 773 }
22c352f8 774 // Now loop over rows and find clusters
775 for (fRow = 0; fRow < nRows; fRow++) {
776 fRowCl = new AliTPCClustersRow;
777 fRowCl->SetClass("AliTPCclusterMI");
778 fRowCl->SetArray(1);
779 fRowCl->SetID(fParam->GetIndex(fSector, fRow));
780 fOutput->GetBranch("Segment")->SetAddress(&fRowCl);
781
782 fRx = fParam->GetPadRowRadii(fSector, fRow);
783 fPadLength = fParam->GetPadPitchLength(fSector, fRow);
f8aae377 784 fPadWidth = fParam->GetPadPitchWidth();
22c352f8 785 if (fSector < kNIS)
786 fMaxPad = fParam->GetNPadsLow(fRow);
787 else
788 fMaxPad = fParam->GetNPadsUp(fRow);
f8aae377 789 fMaxBin = fMaxTime*(fMaxPad+6); // add 3 virtual pads before and 3 after
22c352f8 790
791 fBins = allBins[fRow];
792 fResBins = allBinsRes[fRow];
793
794 FindClusters();
795
796 fOutput->Fill();
797 delete fRowCl;
798 nclusters += fNcluster;
799 } // End of loop to find clusters
22c352f8 800 } // End of loop over sectors
adefcaa6 801
802 for (Int_t iRow = 0; iRow < nRowsMax; iRow++) {
803 delete [] allBins[iRow];
804 delete [] allBinsRes[iRow];
805 }
806 delete [] allBins;
807 delete [] allBinsRes;
808
809 Info("Digits2Clusters", "Event\t%d\tNumber of found clusters : %d\n", rawReader->GetEventId(), nclusters);
22c352f8 810
f8aae377 811}
812
813void AliTPCclustererMI::FindClusters()
814{
815 //add virtual charge at the edge
816 for (Int_t i=0; i<fMaxTime; i++){
817 Float_t amp1 = fBins[i+3*fMaxTime];
818 Float_t amp0 =0;
819 if (amp1>0){
820 Float_t amp2 = fBins[i+4*fMaxTime];
821 if (amp2==0) amp2=0.5;
822 Float_t sigma2 = GetSigmaY2(i);
823 amp0 = (amp1*amp1/amp2)*TMath::Exp(-1./sigma2);
824 if (gDebug>4) printf("\n%f\n",amp0);
825 }
13116aec 826 fBins[i+2*fMaxTime] = amp0;
f8aae377 827 amp0 = 0;
828 amp1 = fBins[(fMaxPad+2)*fMaxTime+i];
829 if (amp1>0){
830 Float_t amp2 = fBins[i+(fMaxPad+1)*fMaxTime];
831 if (amp2==0) amp2=0.5;
832 Float_t sigma2 = GetSigmaY2(i);
833 amp0 = (amp1*amp1/amp2)*TMath::Exp(-1./sigma2);
834 if (gDebug>4) printf("\n%f\n",amp0);
835 }
13116aec 836 fBins[(fMaxPad+3)*fMaxTime+i] = amp0;
f8aae377 837 }
838
839// memcpy(fResBins,fBins, fMaxBin*2);
840 memcpy(fResBins,fBins, fMaxBin);
841 //
842 fNcluster=0;
843 //first loop - for "gold cluster"
844 fLoop=1;
13116aec 845 Float_t *b=&fBins[-1]+2*fMaxTime;
194b0609 846 Int_t crtime = Int_t((fParam->GetZLength()-fRecoParam->GetCtgRange()*fRx)/fZWidth-fParam->GetNTBinsL1()-5);
f8aae377 847
848 for (Int_t i=2*fMaxTime; i<fMaxBin-2*fMaxTime; i++) {
849 b++;
850 if (*b<8) continue; //threshold form maxima
851 if (i%fMaxTime<crtime) {
852 Int_t delta = -(i%fMaxTime)+crtime;
853 b+=delta;
854 i+=delta;
855 continue;
856 }
857
858 if (!IsMaximum(*b,fMaxTime,b)) continue;
859 AliTPCclusterMI c;
860 Int_t dummy=0;
861 MakeCluster(i, fMaxTime, fBins, dummy,c);
862 //}
863 }
864 //memcpy(fBins,fResBins, fMaxBin*2);
865 //second loop - for rest cluster
866 /*
867 fLoop=2;
868 b=&fResBins[-1]+2*fMaxTime;
869 for (Int_t i=2*fMaxTime; i<fMaxBin-2*fMaxTime; i++) {
870 b++;
871 if (*b<25) continue; // bigger threshold for maxima
872 if (!IsMaximum(*b,fMaxTime,b)) continue;
873 AliTPCclusterMI c;
874 Int_t dummy;
875 MakeCluster(i, fMaxTime, fResBins, dummy,c);
876 //}
877 }
878 */
8569a2b0 879}
65c045f0 880
881
ef4ad662 882Double_t AliTPCclustererMI::ProcesSignal(Float_t *signal, Int_t nchannels, Int_t id[3], Double_t &rmsOut){
65c045f0 883 //
884 // process signal on given pad - + streaming of additional information in special mode
885 //
886 // id[0] - sector
887 // id[1] - row
adefcaa6 888 // id[2] - pad
889
890 //
891 // ESTIMATE pedestal and the noise
892 //
65c045f0 893 Int_t offset =100;
adefcaa6 894 const Int_t kPedMax = 100;
895 Float_t max = 0;
896 Float_t maxPos = 0;
897 Int_t median = -1;
898 Int_t count0 = 0;
899 Int_t count1 = 0;
65c045f0 900 //
adefcaa6 901 UShort_t histo[kPedMax];
902 memset(histo,0,kPedMax*sizeof(UShort_t));
903 for (Int_t i=0; i<fMaxTime; i++){
904 if (signal[i]<=0) continue;
905 if (signal[i]>max) {
65c045f0 906 max = signal[i];
907 maxPos = i;
adefcaa6 908 }
909 if (signal[i]>kPedMax-1) continue;
910 histo[int(signal[i]+0.5)]++;
911 count0++;
65c045f0 912 }
7fef31a6 913 //
adefcaa6 914 for (Int_t i=1; i<kPedMax; i++){
915 if (count1<count0*0.5) median=i;
916 count1+=histo[i];
917 }
918 // truncated mean
65c045f0 919 //
adefcaa6 920 Double_t count10=histo[median] ,mean=histo[median]*median, rms=histo[median]*median*median ;
921 Double_t count06=histo[median] ,mean06=histo[median]*median, rms06=histo[median]*median*median ;
922 Double_t count09=histo[median] ,mean09=histo[median]*median, rms09=histo[median]*median*median ;
923 //
924 for (Int_t idelta=1; idelta<10; idelta++){
925 if (median-idelta<=0) continue;
926 if (median+idelta>kPedMax) continue;
927 if (count06<0.6*count1){
928 count06+=histo[median-idelta];
929 mean06 +=histo[median-idelta]*(median-idelta);
930 rms06 +=histo[median-idelta]*(median-idelta)*(median-idelta);
931 count06+=histo[median+idelta];
932 mean06 +=histo[median+idelta]*(median+idelta);
933 rms06 +=histo[median+idelta]*(median+idelta)*(median+idelta);
934 }
935 if (count09<0.9*count1){
936 count09+=histo[median-idelta];
937 mean09 +=histo[median-idelta]*(median-idelta);
938 rms09 +=histo[median-idelta]*(median-idelta)*(median-idelta);
939 count09+=histo[median+idelta];
940 mean09 +=histo[median+idelta]*(median+idelta);
941 rms09 +=histo[median+idelta]*(median+idelta)*(median+idelta);
65c045f0 942 }
adefcaa6 943 if (count10<0.95*count1){
944 count10+=histo[median-idelta];
945 mean +=histo[median-idelta]*(median-idelta);
946 rms +=histo[median-idelta]*(median-idelta)*(median-idelta);
947 count10+=histo[median+idelta];
948 mean +=histo[median+idelta]*(median+idelta);
949 rms +=histo[median+idelta]*(median+idelta)*(median+idelta);
950 }
951 }
952 mean /=count10;
953 mean06/=count06;
954 mean09/=count09;
955 rms = TMath::Sqrt(TMath::Abs(rms/count10-mean*mean));
956 rms06 = TMath::Sqrt(TMath::Abs(rms06/count06-mean06*mean06));
957 rms09 = TMath::Sqrt(TMath::Abs(rms09/count09-mean09*mean09));
ef4ad662 958 rmsOut = rms09;
adefcaa6 959 //
960 if (AliLog::GetDebugLevel("","AliTPCclustererMI")==0) return median;
961 //
962 UInt_t uid[3] = {UInt_t(id[0]),UInt_t(id[1]),UInt_t(id[2])};
963 //
964 // Dump mean signal info
965 //
966 (*fDebugStreamer)<<"Signal"<<
ef4ad662 967 "TimeStamp="<<fTimeStamp<<
968 "EventType="<<fEventType<<
adefcaa6 969 "Sector="<<uid[0]<<
970 "Row="<<uid[1]<<
971 "Pad="<<uid[2]<<
972 "Max="<<max<<
973 "MaxPos="<<maxPos<<
974 //
975 "Median="<<median<<
976 "Mean="<<mean<<
977 "RMS="<<rms<<
978 "Mean06="<<mean06<<
979 "RMS06="<<rms06<<
980 "Mean09="<<mean09<<
981 "RMS09="<<rms09<<
982 "\n";
983 //
984 // fill pedestal histogram
985 //
986 AliTPCROC * roc = AliTPCROC::Instance();
987 if (!fAmplitudeHisto){
988 fAmplitudeHisto = new TObjArray(72);
989 }
990 //
991 if (uid[0]<roc->GetNSectors()
992 && uid[1]< roc->GetNRows(uid[0]) &&
993 uid[2] <roc->GetNPads(uid[0], uid[1])){
65c045f0 994 TObjArray * sectorArray = (TObjArray*)fAmplitudeHisto->UncheckedAt(uid[0]);
995 if (!sectorArray){
adefcaa6 996 Int_t npads =roc->GetNChannels(uid[0]);
65c045f0 997 sectorArray = new TObjArray(npads);
998 fAmplitudeHisto->AddAt(sectorArray, uid[0]);
999 }
adefcaa6 1000 Int_t position = uid[2]+roc->GetRowIndexes(uid[0])[uid[1]];
65c045f0 1001 TH1F * histo = (TH1F*)sectorArray->UncheckedAt(position);
1002 if (!histo){
1003 char hname[100];
1004 sprintf(hname,"Amp_%d_%d_%d",uid[0],uid[1],uid[2]);
1005 TFile * backup = gFile;
1006 fDebugStreamer->GetFile()->cd();
194b0609 1007 histo = new TH1F(hname, hname, 100, 5,100);
65c045f0 1008 //histo->SetDirectory(0); // histogram not connected to directory -(File)
1009 sectorArray->AddAt(histo, position);
1010 if (backup) backup->cd();
1011 }
1012 for (Int_t i=0; i<nchannels; i++){
adefcaa6 1013 histo->Fill(signal[i]);
65c045f0 1014 }
1015 }
1016 //
adefcaa6 1017 //
1018 //
1019 Float_t kMin =fRecoParam->GetDumpAmplitudeMin(); // minimal signal to be dumped
1020 Float_t *dsignal = new Float_t[nchannels];
1021 Float_t *dtime = new Float_t[nchannels];
1022 for (Int_t i=0; i<nchannels; i++){
1023 dtime[i] = i;
1024 dsignal[i] = signal[i];
1025 }
1026 //
1027 //
65c045f0 1028 TGraph * graph;
1029 Bool_t random = (gRandom->Rndm()<0.0001);
1030 if (max-median>kMin || rms06>2.*fParam->GetZeroSup() || random){
1031 graph =new TGraph(nchannels, dtime, dsignal);
1032 if (rms06>2.*fParam->GetZeroSup() || random)
1033 (*fDebugStreamer)<<"SignalN"<< //noise pads - or random sample of pads
ef4ad662 1034 "TimeStamp="<<fTimeStamp<<
1035 "EventType="<<fEventType<<
65c045f0 1036 "Sector="<<uid[0]<<
1037 "Row="<<uid[1]<<
1038 "Pad="<<uid[2]<<
864c1803 1039 "Graph="<<graph<<
65c045f0 1040 "Max="<<max<<
1041 "MaxPos="<<maxPos<<
1042 //
1043 "Median="<<median<<
1044 "Mean="<<mean<<
1045 "RMS="<<rms<<
1046 "Mean06="<<mean06<<
1047 "RMS06="<<rms06<<
65c045f0 1048 "Mean09="<<mean09<<
1049 "RMS09="<<rms09<<
1050 "\n";
fe5055e5 1051 if (max-median>kMin &&maxPos>AliTPCReconstructor::GetRecoParam()->GetFirstBin())
65c045f0 1052 (*fDebugStreamer)<<"SignalB"<< // pads with signal
ef4ad662 1053 "TimeStamp="<<fTimeStamp<<
1054 "EventType="<<fEventType<<
65c045f0 1055 "Sector="<<uid[0]<<
1056 "Row="<<uid[1]<<
1057 "Pad="<<uid[2]<<
864c1803 1058 "Graph="<<graph<<
65c045f0 1059 "Max="<<max<<
1060 "MaxPos="<<maxPos<<
1061 //
1062 "Median="<<median<<
1063 "Mean="<<mean<<
1064 "RMS="<<rms<<
1065 "Mean06="<<mean06<<
1066 "RMS06="<<rms06<<
65c045f0 1067 "Mean09="<<mean09<<
1068 "RMS09="<<rms09<<
1069 "\n";
1070 delete graph;
1071 }
1072
7fef31a6 1073 //
1074 //
1075 // Central Electrode signal analysis
1076 //
1077 Double_t ceQmax =0, ceQsum=0, ceTime=0;
1078 Double_t cemean = mean06, cerms=rms06 ;
1079 Int_t cemaxpos= 0;
1080 Double_t ceThreshold=5.*cerms;
1081 Double_t ceSumThreshold=8.*cerms;
97f127bb 1082 const Int_t kCemin=5; // range for the analysis of the ce signal +- channels from the peak
1083 const Int_t kCemax=5;
adefcaa6 1084 for (Int_t i=nchannels-2; i>nchannels/2; i--){
7fef31a6 1085 if ( (dsignal[i]-mean06)>ceThreshold && dsignal[i]>=dsignal[i+1] && dsignal[i]>=dsignal[i-1] ){
1086 cemaxpos=i;
1087 break;
1088 }
1089 }
1090 if (cemaxpos!=0){
adefcaa6 1091 ceQmax = 0;
1092 Int_t cemaxpos2=0;
1093 for (Int_t i=cemaxpos-20; i<cemaxpos+5; i++){
1094 if (i<0 || i>nchannels-1) continue;
1095 Double_t val=dsignal[i]- cemean;
1096 if (val>ceQmax){
1097 cemaxpos2=i;
1098 ceQmax = val;
7fef31a6 1099 }
adefcaa6 1100 }
1101 cemaxpos = cemaxpos2;
1102
1103 for (Int_t i=cemaxpos-kCemin; i<cemaxpos+kCemax; i++){
1104 if (i>0 && i<nchannels&&dsignal[i]- cemean>0){
1105 Double_t val=dsignal[i]- cemean;
1106 ceTime+=val*dtime[i];
1107 ceQsum+=val;
1108 if (val>ceQmax) ceQmax=val;
7fef31a6 1109 }
adefcaa6 1110 }
1111 if (ceQmax&&ceQsum>ceSumThreshold) {
1112 ceTime/=ceQsum;
1113 (*fDebugStreamer)<<"Signalce"<<
ef4ad662 1114 "TimeStamp="<<fTimeStamp<<
1115 "EventType="<<fEventType<<
adefcaa6 1116 "Sector="<<uid[0]<<
1117 "Row="<<uid[1]<<
1118 "Pad="<<uid[2]<<
1119 "Max="<<ceQmax<<
1120 "Qsum="<<ceQsum<<
1121 "Time="<<ceTime<<
1122 "RMS06="<<rms06<<
1123 //
1124 "\n";
1125 }
7fef31a6 1126 }
1127 // end of ce signal analysis
1128 //
1129
1130 //
1131 // Gating grid signal analysis
1132 //
1133 Double_t ggQmax =0, ggQsum=0, ggTime=0;
1134 Double_t ggmean = mean06, ggrms=rms06 ;
1135 Int_t ggmaxpos= 0;
1136 Double_t ggThreshold=5.*ggrms;
1137 Double_t ggSumThreshold=8.*ggrms;
bd85a5e8 1138
adefcaa6 1139 for (Int_t i=1; i<nchannels/4; i++){
bd85a5e8 1140 if ( (dsignal[i]-mean06)>ggThreshold && dsignal[i]>=dsignal[i+1] && dsignal[i]>=dsignal[i-1] &&
1141 (dsignal[i]+dsignal[i+1]+dsignal[i-1]-3*mean06)>ggSumThreshold){
7fef31a6 1142 ggmaxpos=i;
bd85a5e8 1143 if (dsignal[i-1]>dsignal[i+1]) ggmaxpos=i-1;
7fef31a6 1144 break;
1145 }
1146 }
1147 if (ggmaxpos!=0){
bd85a5e8 1148 for (Int_t i=ggmaxpos-1; i<ggmaxpos+3; i++){
1149 if (i>0 && i<nchannels && dsignal[i]-ggmean>0){
7fef31a6 1150 Double_t val=dsignal[i]- ggmean;
1151 ggTime+=val*dtime[i];
1152 ggQsum+=val;
1153 if (val>ggQmax) ggQmax=val;
1154 }
1155 }
1156 if (ggQmax&&ggQsum>ggSumThreshold) {
1157 ggTime/=ggQsum;
1158 (*fDebugStreamer)<<"Signalgg"<<
ef4ad662 1159 "TimeStamp="<<fTimeStamp<<
1160 "EventType="<<fEventType<<
7fef31a6 1161 "Sector="<<uid[0]<<
1162 "Row="<<uid[1]<<
1163 "Pad="<<uid[2]<<
1164 "Max="<<ggQmax<<
1165 "Qsum="<<ggQsum<<
1166 "Time="<<ggTime<<
bd85a5e8 1167 "RMS06="<<rms06<<
7fef31a6 1168 //
1169 "\n";
1170 }
1171 }
1172 // end of gg signal analysis
1173
1174
65c045f0 1175 delete [] dsignal;
1176 delete [] dtime;
194b0609 1177 if (rms06>fRecoParam->GetMaxNoise()) return 1024+median; // sign noisy channel in debug mode
65c045f0 1178 return median;
1179}
1180
1181
1182
1183void AliTPCclustererMI::DumpHistos(){
adefcaa6 1184 //
1185 // Dump histogram information
1186 //
65c045f0 1187 if (!fAmplitudeHisto) return;
adefcaa6 1188 AliTPCROC * roc = AliTPCROC::Instance();
65c045f0 1189 for (UInt_t isector=0; isector<AliTPCROC::Instance()->GetNSectors(); isector++){
1190 TObjArray * array = (TObjArray*)fAmplitudeHisto->UncheckedAt(isector);
1191 if (!array) continue;
1192 for (UInt_t ipad = 0; ipad <(UInt_t)array->GetEntriesFast(); ipad++){
1193 TH1F * histo = (TH1F*) array->UncheckedAt(ipad);
1194 if (!histo) continue;
1195 if (histo->GetEntries()<100) continue;
1196 histo->Fit("gaus","q");
1197 Float_t mean = histo->GetMean();
1198 Float_t rms = histo->GetRMS();
1199 Float_t gmean = histo->GetFunction("gaus")->GetParameter(1);
1200 Float_t gsigma = histo->GetFunction("gaus")->GetParameter(2);
1201 Float_t max = histo->GetFunction("gaus")->GetParameter(0);
1202
1203 // get pad number
1204 UInt_t row=0, pad =0;
adefcaa6 1205 const UInt_t *indexes =roc->GetRowIndexes(isector);
1206 for (UInt_t irow=0; irow<roc->GetNRows(isector); irow++){
65c045f0 1207 if (indexes[irow]<ipad){
1208 row = irow;
1209 pad = ipad-indexes[irow];
1210 }
1211 }
1212 Int_t rpad = pad - (AliTPCROC::Instance()->GetNPads(isector,row))/2;
1213 //
1214 (*fDebugStreamer)<<"Fit"<<
ef4ad662 1215 "TimeStamp="<<fTimeStamp<<
1216 "EventType="<<fEventType<<
65c045f0 1217 "Sector="<<isector<<
1218 "Row="<<row<<
1219 "Pad="<<pad<<
1220 "RPad="<<rpad<<
1221 "Max="<<max<<
1222 "Mean="<<mean<<
1223 "RMS="<<rms<<
1224 "GMean="<<gmean<<
1225 "GSigma="<<gsigma<<
1226 "\n";
1227 if (array->UncheckedAt(ipad)) fDebugStreamer->StoreObject(array->UncheckedAt(ipad));
1228 }
1229 }
1230}