Correct response function in the clusterization (M.Ivanov)
[u/mrichter/AliRoot.git] / TRD / AliTRDclusterizerV1.cxx
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f7336fa3 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/* $Id$ */
f7336fa3 17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// TRD cluster finder for the slow simulator.
21// //
22///////////////////////////////////////////////////////////////////////////////
23
24#include <TF1.h>
94de3818 25#include <TTree.h>
793ff80c 26#include <TH1.h>
a819a5f7 27#include <TFile.h>
f7336fa3 28
793ff80c 29#include "AliRun.h"
88cb7938 30#include "AliRunLoader.h"
31#include "AliLoader.h"
928e9fae 32#include "AliRawReader.h"
793ff80c 33
f7336fa3 34#include "AliTRDclusterizerV1.h"
35#include "AliTRDmatrix.h"
36#include "AliTRDgeometry.h"
6f1e466d 37#include "AliTRDdataArrayF.h"
793ff80c 38#include "AliTRDdataArrayI.h"
39#include "AliTRDdigitsManager.h"
17b26de4 40#include "AliTRDparameter.h"
a5cadd36 41#include "AliTRDpadPlane.h"
928e9fae 42#include "AliTRDrawData.h"
3551db50 43#include "AliTRDcalibDB.h"
44#include "AliTRDRecParam.h"
45#include "AliTRDCommonParam.h"
c85a4951 46#include "AliTRDcluster.h"
f7336fa3 47
48ClassImp(AliTRDclusterizerV1)
49
50//_____________________________________________________________________________
51AliTRDclusterizerV1::AliTRDclusterizerV1():AliTRDclusterizer()
52{
53 //
54 // AliTRDclusterizerV1 default constructor
55 //
56
17b26de4 57 fDigitsManager = 0;
db30bf0f 58
f7336fa3 59}
60
61//_____________________________________________________________________________
62AliTRDclusterizerV1::AliTRDclusterizerV1(const Text_t* name, const Text_t* title)
63 :AliTRDclusterizer(name,title)
64{
65 //
66 // AliTRDclusterizerV1 default constructor
67 //
68
6f1e466d 69 fDigitsManager = new AliTRDdigitsManager();
17b26de4 70 fDigitsManager->CreateArrays();
f7336fa3 71
72}
73
8230f242 74//_____________________________________________________________________________
dd9a6ee3 75AliTRDclusterizerV1::AliTRDclusterizerV1(const AliTRDclusterizerV1 &c)
73ae7b59 76:AliTRDclusterizer(c)
8230f242 77{
78 //
79 // AliTRDclusterizerV1 copy constructor
80 //
81
dd9a6ee3 82 ((AliTRDclusterizerV1 &) c).Copy(*this);
8230f242 83
84}
85
f7336fa3 86//_____________________________________________________________________________
87AliTRDclusterizerV1::~AliTRDclusterizerV1()
88{
8230f242 89 //
90 // AliTRDclusterizerV1 destructor
91 //
f7336fa3 92
6f1e466d 93 if (fDigitsManager) {
94 delete fDigitsManager;
abaf1f1d 95 fDigitsManager = NULL;
f7336fa3 96 }
97
98}
99
dd9a6ee3 100//_____________________________________________________________________________
101AliTRDclusterizerV1 &AliTRDclusterizerV1::operator=(const AliTRDclusterizerV1 &c)
102{
103 //
104 // Assignment operator
105 //
106
107 if (this != &c) ((AliTRDclusterizerV1 &) c).Copy(*this);
108 return *this;
109
110}
111
8230f242 112//_____________________________________________________________________________
e0d47c25 113void AliTRDclusterizerV1::Copy(TObject &c) const
8230f242 114{
115 //
116 // Copy function
117 //
118
17b26de4 119 ((AliTRDclusterizerV1 &) c).fDigitsManager = 0;
8230f242 120
121 AliTRDclusterizer::Copy(c);
122
123}
124
f7336fa3 125//_____________________________________________________________________________
126Bool_t AliTRDclusterizerV1::ReadDigits()
127{
128 //
129 // Reads the digits arrays from the input aliroot file
130 //
131
88cb7938 132 if (!fRunLoader) {
17b26de4 133 printf("<AliTRDclusterizerV1::ReadDigits> ");
f7336fa3 134 printf("No input file open\n");
135 return kFALSE;
136 }
88cb7938 137 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
138 if (!loader->TreeD()) loader->LoadDigits();
abaf1f1d 139
f7336fa3 140 // Read in the digit arrays
88cb7938 141 return (fDigitsManager->ReadDigits(loader->TreeD()));
f7336fa3 142
143}
144
928e9fae 145//_____________________________________________________________________________
146Bool_t AliTRDclusterizerV1::ReadDigits(AliRawReader* rawReader)
147{
148 //
149 // Reads the digits arrays from the ddl file
150 //
151
152 AliTRDrawData *raw = new AliTRDrawData();
153 raw->SetDebug(1);
154
155 fDigitsManager = raw->Raw2Digits(rawReader);
156
157 return kTRUE;
158
159}
160
f7336fa3 161//_____________________________________________________________________________
793ff80c 162Bool_t AliTRDclusterizerV1::MakeClusters()
f7336fa3 163{
164 //
165 // Generates the cluster.
166 //
167
168 Int_t row, col, time;
169
bdbb05bb 170 /*
3e1a3ad8 171 if (fTRD->IsVersion() != 1) {
17b26de4 172 printf("<AliTRDclusterizerV1::MakeCluster> ");
f7336fa3 173 printf("TRD must be version 1 (slow simulator).\n");
174 return kFALSE;
175 }
bdbb05bb 176 */
f7336fa3 177
178 // Get the geometry
bdbb05bb 179 AliTRDgeometry *geo = AliTRDgeometry::GetGeometry(fRunLoader);
f7336fa3 180
17b26de4 181 // Create a default parameter class if none is defined
182 if (!fPar) {
183 fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
5443e65e 184 printf("<AliTRDclusterizerV1::MakeCluster> ");
185 printf("Create the default parameter object.\n");
17b26de4 186 }
598156ef 187 fPar->Init();
3551db50 188
189 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
190 if (!calibration)
191 {
192 printf("<AliTRDclusterizerMI::MakeCluster> ");
193 printf("ERROR getting instance of AliTRDcalibDB");
194 return kFALSE;
195 }
196
197 AliTRDRecParam* recParam = AliTRDRecParam::Instance();
198 if (!recParam)
199 {
200 printf("<AliTRDclusterizerMI::MakeCluster> ");
201 printf("ERROR getting instance of AliTRDRecParam");
202 return kFALSE;
203 }
204
205 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
206 if (!commonParam)
207 {
208 printf("<AliTRDdigitizer::MakeDigits> ");
209 printf("Could not get common params\n");
210 return kFALSE;
211 }
212
7ad19338 213 //Float_t timeBinSize = fPar->GetDriftVelocity()
214 // / fPar->GetSamplingFrequency();
a819a5f7 215 // Half of ampl.region
7ad19338 216 // const Float_t kAmWidth = AliTRDgeometry::AmThick()/2.;
a819a5f7 217
3551db50 218 //Float_t omegaTau = fPar->GetOmegaTau();
47517f42 219 if (fVerbose > 0) {
3551db50 220 //printf("<AliTRDclusterizerV1::MakeCluster> ");
221 //printf("OmegaTau = %f \n",omegaTau);
17b26de4 222 printf("<AliTRDclusterizerV1::MakeCluster> ");
47517f42 223 printf("Start creating clusters.\n");
224 }
f7336fa3 225
8230f242 226 AliTRDdataArrayI *digits;
793ff80c 227 AliTRDdataArrayI *track0;
228 AliTRDdataArrayI *track1;
229 AliTRDdataArrayI *track2;
f7336fa3 230
3e1a3ad8 231 // Threshold value for the maximum
3551db50 232 Int_t maxThresh = recParam->GetClusMaxThresh();
3e1a3ad8 233 // Threshold value for the digit signal
3551db50 234 Int_t sigThresh = recParam->GetClusSigThresh();
f7336fa3 235 // Iteration limit for unfolding procedure
8230f242 236 const Float_t kEpsilon = 0.01;
f7336fa3 237
8230f242 238 const Int_t kNclus = 3;
239 const Int_t kNsig = 5;
3e1a3ad8 240 const Int_t kNtrack = 3 * kNclus;
241
a5cadd36 242 Int_t iType = 0;
7ad19338 243 Int_t iUnfold = 0;
a5cadd36 244 Double_t ratioLeft = 1.0;
245 Double_t ratioRight = 1.0;
db30bf0f 246
7ad19338 247 //
a5cadd36 248 Double_t padSignal[kNsig];
249 Double_t clusterSignal[kNclus];
250 Double_t clusterPads[kNclus];
251 Int_t clusterDigit[kNclus];
252 Int_t clusterTracks[kNtrack];
f7336fa3 253
a5cadd36 254 Int_t chamBeg = 0;
255 Int_t chamEnd = AliTRDgeometry::Ncham();
256 Int_t planBeg = 0;
257 Int_t planEnd = AliTRDgeometry::Nplan();
258 Int_t sectBeg = 0;
259 Int_t sectEnd = AliTRDgeometry::Nsect();
f7336fa3 260
3e1a3ad8 261 // Start clustering in every chamber
f7336fa3 262 for (Int_t icham = chamBeg; icham < chamEnd; icham++) {
263 for (Int_t iplan = planBeg; iplan < planEnd; iplan++) {
264 for (Int_t isect = sectBeg; isect < sectEnd; isect++) {
265
8230f242 266 Int_t idet = geo->GetDetector(iplan,icham,isect);
f7336fa3 267
db30bf0f 268 Int_t nClusters = 0;
269 Int_t nClusters2pad = 0;
270 Int_t nClusters3pad = 0;
271 Int_t nClusters4pad = 0;
272 Int_t nClusters5pad = 0;
273 Int_t nClustersLarge = 0;
3e1a3ad8 274
47517f42 275 if (fVerbose > 0) {
17b26de4 276 printf("<AliTRDclusterizerV1::MakeCluster> ");
47517f42 277 printf("Analyzing chamber %d, plane %d, sector %d.\n"
278 ,icham,iplan,isect);
279 }
f7336fa3 280
3551db50 281 Int_t nRowMax = commonParam->GetRowMax(iplan,icham,isect);
282 Int_t nColMax = commonParam->GetColMax(iplan);
283 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
5443e65e 284
3551db50 285 AliTRDpadPlane *padPlane = commonParam->GetPadPlane(iplan,icham);
f7336fa3 286
3e1a3ad8 287 // Get the digits
8230f242 288 digits = fDigitsManager->GetDigits(idet);
3e1a3ad8 289 digits->Expand();
793ff80c 290 track0 = fDigitsManager->GetDictionary(idet,0);
3e1a3ad8 291 track0->Expand();
793ff80c 292 track1 = fDigitsManager->GetDictionary(idet,1);
3e1a3ad8 293 track1->Expand();
793ff80c 294 track2 = fDigitsManager->GetDictionary(idet,2);
3e1a3ad8 295 track2->Expand();
296
297 // Loop through the chamber and find the maxima
298 for ( row = 0; row < nRowMax; row++) {
de4b10e5 299 for ( col = 2; col < nColMax; col++) {
3551db50 300 //for ( col = 4; col < nColMax-2; col++) {
3e1a3ad8 301 for (time = 0; time < nTimeTotal; time++) {
302
a819a5f7 303 Int_t signalL = TMath::Abs(digits->GetDataUnchecked(row,col ,time));
304 Int_t signalM = TMath::Abs(digits->GetDataUnchecked(row,col-1,time));
305 Int_t signalR = TMath::Abs(digits->GetDataUnchecked(row,col-2,time));
3e1a3ad8 306
7ad19338 307// // Look for the maximum
308// if (signalM >= maxThresh) {
309// if (((signalL >= sigThresh) &&
310// (signalL < signalM)) ||
311// ((signalR >= sigThresh) &&
312// (signalR < signalM))) {
313// // Maximum found, mark the position by a negative signal
314// digits->SetDataUnchecked(row,col-1,time,-signalM);
315// }
316// }
3e1a3ad8 317 // Look for the maximum
db30bf0f 318 if (signalM >= maxThresh) {
de4b10e5 319 if ( (TMath::Abs(signalL)<=signalM) && (TMath::Abs(signalR)<=signalM) &&
320 (TMath::Abs(signalL)+TMath::Abs(signalR))>sigThresh ) {
3e1a3ad8 321 // Maximum found, mark the position by a negative signal
322 digits->SetDataUnchecked(row,col-1,time,-signalM);
323 }
324 }
325
326 }
327 }
328 }
329
330 // Now check the maxima and calculate the cluster position
331 for ( row = 0; row < nRowMax ; row++) {
db30bf0f 332 for (time = 0; time < nTimeTotal; time++) {
333 for ( col = 1; col < nColMax-1; col++) {
3e1a3ad8 334
335 // Maximum found ?
336 if (digits->GetDataUnchecked(row,col,time) < 0) {
f7336fa3 337
9d0b222b 338 Int_t iPad;
8230f242 339 for (iPad = 0; iPad < kNclus; iPad++) {
3e1a3ad8 340 Int_t iPadCol = col - 1 + iPad;
341 clusterSignal[iPad] = TMath::Abs(digits->GetDataUnchecked(row
342 ,iPadCol
343 ,time));
344 clusterDigit[iPad] = digits->GetIndexUnchecked(row,iPadCol,time);
345 clusterTracks[3*iPad ] = track0->GetDataUnchecked(row,iPadCol,time) - 1;
346 clusterTracks[3*iPad+1] = track1->GetDataUnchecked(row,iPadCol,time) - 1;
347 clusterTracks[3*iPad+2] = track2->GetDataUnchecked(row,iPadCol,time) - 1;
f7336fa3 348 }
349
db30bf0f 350 // Count the number of pads in the cluster
351 Int_t nPadCount = 0;
352 Int_t ii = 0;
353 while (TMath::Abs(digits->GetDataUnchecked(row,col-ii ,time))
354 >= sigThresh) {
355 nPadCount++;
356 ii++;
357 if (col-ii < 0) break;
358 }
359 ii = 0;
360 while (TMath::Abs(digits->GetDataUnchecked(row,col+ii+1,time))
361 >= sigThresh) {
362 nPadCount++;
363 ii++;
364 if (col+ii+1 >= nColMax) break;
365 }
366
367 nClusters++;
368 switch (nPadCount) {
369 case 2:
370 iType = 0;
371 nClusters2pad++;
372 break;
373 case 3:
374 iType = 1;
375 nClusters3pad++;
376 break;
377 case 4:
378 iType = 2;
379 nClusters4pad++;
380 break;
381 case 5:
382 iType = 3;
383 nClusters5pad++;
384 break;
385 default:
386 iType = 4;
387 nClustersLarge++;
388 break;
389 };
390
7ad19338 391 // Look for 5 pad cluster with minimum in the middle
db30bf0f 392 Bool_t fivePadCluster = kFALSE;
3e1a3ad8 393 if (col < nColMax-3) {
394 if (digits->GetDataUnchecked(row,col+2,time) < 0) {
db30bf0f 395 fivePadCluster = kTRUE;
396 }
397 if ((fivePadCluster) && (col < nColMax-5)) {
398 if (digits->GetDataUnchecked(row,col+4,time) >= sigThresh) {
399 fivePadCluster = kFALSE;
400 }
401 }
402 if ((fivePadCluster) && (col > 1)) {
403 if (digits->GetDataUnchecked(row,col-2,time) >= sigThresh) {
404 fivePadCluster = kFALSE;
405 }
406 }
407 }
408
409 // 5 pad cluster
410 // Modify the signal of the overlapping pad for the left part
411 // of the cluster which remains from a previous unfolding
412 if (iUnfold) {
413 clusterSignal[0] *= ratioLeft;
7ad19338 414 iType = 5;
db30bf0f 415 iUnfold = 0;
416 }
417
418 // Unfold the 5 pad cluster
419 if (fivePadCluster) {
420 for (iPad = 0; iPad < kNsig; iPad++) {
421 padSignal[iPad] = TMath::Abs(digits->GetDataUnchecked(row
422 ,col-1+iPad
423 ,time));
f7336fa3 424 }
db30bf0f 425 // Unfold the two maxima and set the signal on
426 // the overlapping pad to the ratio
17b26de4 427 ratioRight = Unfold(kEpsilon,iplan,padSignal);
db30bf0f 428 ratioLeft = 1.0 - ratioRight;
429 clusterSignal[2] *= ratioRight;
7ad19338 430 iType = 5;
db30bf0f 431 iUnfold = 1;
f7336fa3 432 }
f7336fa3 433
7ad19338 434
a5cadd36 435 Double_t clusterCharge = clusterSignal[0]
436 + clusterSignal[1]
437 + clusterSignal[2];
3e1a3ad8 438
db30bf0f 439 // The position of the cluster
3e1a3ad8 440 clusterPads[0] = row + 0.5;
3e1a3ad8 441 // Take the shift of the additional time bins into account
dde59437 442 clusterPads[2] = time + 0.5;
3e1a3ad8 443
3551db50 444 // correct for t0
445 clusterPads[2] -= calibration->GetT0(idet, col, row);
446
447 if (recParam->LUTOn()) {
db30bf0f 448 // Calculate the position of the cluster by using the
449 // lookup table method
7ad19338 450 clusterPads[1] =
3551db50 451 recParam->LUTposition(iplan,clusterSignal[0]
17b26de4 452 ,clusterSignal[1]
453 ,clusterSignal[2]);
db30bf0f 454 }
455 else {
db30bf0f 456 // Calculate the position of the cluster by using the
457 // center of gravity method
7ad19338 458 for (Int_t i=0;i<5;i++) padSignal[i]=0;
459 padSignal[2] = TMath::Abs(digits->GetDataUnchecked(row,col,time)); // central pad
460 padSignal[1] = TMath::Abs(digits->GetDataUnchecked(row,col-1,time)); // left pad
461 padSignal[3] = TMath::Abs(digits->GetDataUnchecked(row,col+1,time)); // right pad
462 if (col>2 &&TMath::Abs(digits->GetDataUnchecked(row,col-2,time)<padSignal[1])){
463 padSignal[0] = TMath::Abs(digits->GetDataUnchecked(row,col-2,time));
464 }
465 if (col<nColMax-3 &&TMath::Abs(digits->GetDataUnchecked(row,col+2,time)<padSignal[3])){
466 padSignal[4] = TMath::Abs(digits->GetDataUnchecked(row,col+2,time));
467 }
468 clusterPads[1] = GetCOG(padSignal);
ed25c022 469 //Double_t check = fPar->LUTposition(iplan,clusterSignal[0]
470 // ,clusterSignal[1]
471 // ,clusterSignal[2]);
de4b10e5 472 // Float_t diff = clusterPads[1] - check;
db30bf0f 473
474 }
475
a5cadd36 476 Double_t q0 = clusterSignal[0];
477 Double_t q1 = clusterSignal[1];
478 Double_t q2 = clusterSignal[2];
479 Double_t clusterSigmaY2 = (q1*(q0+q2)+4*q0*q2) /
480 (clusterCharge*clusterCharge);
a819a5f7 481
3551db50 482 Float_t vdrift = calibration->GetVdrift(idet, col, row);
483
484 // Calculate the position and the error
7ad19338 485 Double_t colSize = padPlane->GetColSize(col);
486 Double_t rowSize = padPlane->GetRowSize(row);
a5cadd36 487 Double_t clusterPos[3];
b867ddda 488 clusterPos[0] = padPlane->GetColPos(col) - (clusterPads[1]+0.5)*colSize; // MI change
7ad19338 489 clusterPos[1] = padPlane->GetRowPos(row) -0.5*rowSize; //MI change
3551db50 490 clusterPos[2] = CalcXposFromTimebin(clusterPads[2], vdrift);
a5cadd36 491 Double_t clusterSig[2];
5443e65e 492 clusterSig[0] = (clusterSigmaY2 + 1./12.) * colSize*colSize;
7ad19338 493 clusterSig[1] = rowSize * rowSize / 12.;
3551db50 494
495
f7336fa3 496 // Add the cluster to the output array
c85a4951 497 AliTRDcluster * cluster = AddCluster(clusterPos
3551db50 498 ,(Int_t) clusterPads[2]
499 ,idet
a5cadd36 500 ,clusterCharge
501 ,clusterTracks
502 ,clusterSig
de4b10e5 503 ,iType,clusterPads[1]);
c85a4951 504 //
505 //
506 Short_t signals[7]={0,0,0,0,0,0,0};
507 for (Int_t jPad = col-3;jPad<=col+3;jPad++){
508 if (jPad<0 ||jPad>=nColMax-1) continue;
509 signals[jPad-col+3] = TMath::Abs(digits->GetDataUnchecked(row,jPad,time));
510 }
511 cluster->SetSignals(signals);
f7336fa3 512 }
3e1a3ad8 513 }
514 }
515 }
f7336fa3 516
3e1a3ad8 517 // Compress the arrays
518 digits->Compress(1,0);
519 track0->Compress(1,0);
7ad19338 520 track1->Compress(1,0);
3e1a3ad8 521 track2->Compress(1,0);
f7336fa3 522
3e1a3ad8 523 // Write the cluster and reset the array
793ff80c 524 WriteClusters(idet);
bdbb05bb 525 ResetRecPoints();
3e1a3ad8 526 }
527 }
528 }
f7336fa3 529
47517f42 530 if (fVerbose > 0) {
17b26de4 531 printf("<AliTRDclusterizerV1::MakeCluster> ");
47517f42 532 printf("Done.\n");
533 }
f7336fa3 534
535 return kTRUE;
536
537}
538
7ad19338 539Double_t AliTRDclusterizerV1::GetCOG(Double_t signal[5])
540{
541 //
542 // get COG position
543 // used for clusters with more than 3 pads - where LUT not applicable
544 Double_t sum = signal[0]+signal[1]+signal[2]+signal[3]+signal[4];
545 Double_t res = (0.0*(-signal[0]+signal[4])+(-signal[1]+signal[3]))/sum;
546 return res;
547}
548
549
550
f7336fa3 551//_____________________________________________________________________________
a5cadd36 552Double_t AliTRDclusterizerV1::Unfold(Double_t eps, Int_t plane, Double_t* padSignal)
f7336fa3 553{
554 //
555 // Method to unfold neighbouring maxima.
556 // The charge ratio on the overlapping pad is calculated
557 // until there is no more change within the range given by eps.
558 // The resulting ratio is then returned to the calling method.
559 //
560
6a739e92 561 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
562 if (!calibration)
3551db50 563 {
6a739e92 564 printf("<AliTRDclusterizerMI::Unfold> ");
565 printf("ERROR getting instance of AliTRDcalibDB");
566 return kFALSE;
3551db50 567 }
6a739e92 568
a5cadd36 569 Int_t irc = 0;
570 Int_t itStep = 0; // Count iteration steps
f7336fa3 571
a5cadd36 572 Double_t ratio = 0.5; // Start value for ratio
573 Double_t prevRatio = 0; // Store previous ratio
f7336fa3 574
a5cadd36 575 Double_t newLeftSignal[3] = {0}; // Array to store left cluster signal
576 Double_t newRightSignal[3] = {0}; // Array to store right cluster signal
577 Double_t newSignal[3] = {0};
f7336fa3 578
3e1a3ad8 579 // Start the iteration
f7336fa3 580 while ((TMath::Abs(prevRatio - ratio) > eps) && (itStep < 10)) {
581
582 itStep++;
583 prevRatio = ratio;
584
3e1a3ad8 585 // Cluster position according to charge ratio
a5cadd36 586 Double_t maxLeft = (ratio*padSignal[2] - padSignal[0])
587 / (padSignal[0] + padSignal[1] + ratio*padSignal[2]);
588 Double_t maxRight = (padSignal[4] - (1-ratio)*padSignal[2])
589 / ((1-ratio)*padSignal[2] + padSignal[3] + padSignal[4]);
f7336fa3 590
3e1a3ad8 591 // Set cluster charge ratio
6a739e92 592 irc = calibration->PadResponse(1.0,maxLeft ,plane,newSignal);
a5cadd36 593 Double_t ampLeft = padSignal[1] / newSignal[1];
6a739e92 594 irc = calibration->PadResponse(1.0,maxRight,plane,newSignal);
a5cadd36 595 Double_t ampRight = padSignal[3] / newSignal[1];
f7336fa3 596
3e1a3ad8 597 // Apply pad response to parameters
6a739e92 598 irc = calibration->PadResponse(ampLeft ,maxLeft ,plane,newLeftSignal );
599 irc = calibration->PadResponse(ampRight,maxRight,plane,newRightSignal);
f7336fa3 600
3e1a3ad8 601 // Calculate new overlapping ratio
a5cadd36 602 ratio = TMath::Min((Double_t)1.0,newLeftSignal[2] /
db30bf0f 603 (newLeftSignal[2] + newRightSignal[0]));
f7336fa3 604
605 }
606
607 return ratio;
608
609}
610