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merging RecPoints and ClustersV2. All ClusterFinders produce AliITSRecPoints objects...
[u/mrichter/AliRoot.git] / ITS / AliITSClusterFinderSDD.cxx
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b0f5e3fc 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 **************************************************************************/
d86f531c 15/*
16 $Id$
d86f531c 17 */
04366a57 18///////////////////////////////////////////////////////////////////////////
19// Cluster finder //
20// for Silicon //
21// Drift Detector //
22//////////////////////////////////////////////////////////////////////////
bf3f2830 23
b0f5e3fc 24
25#include "AliITSClusterFinderSDD.h"
e8189707 26#include "AliITSMapA1.h"
41b19549 27#include "AliITSRawClusterSDD.h"
78a228db 28#include "AliITSRecPoint.h"
f77f13c8 29#include "AliITSdigitSDD.h"
7d62fb64 30#include "AliITSDetTypeRec.h"
fcf95fc7 31#include "AliITSCalibrationSDD.h"
f77f13c8 32#include "AliITSsegmentationSDD.h"
33#include "AliLog.h"
b0f5e3fc 34
b0f5e3fc 35ClassImp(AliITSClusterFinderSDD)
36
aacedc3e 37//______________________________________________________________________
38AliITSClusterFinderSDD::AliITSClusterFinderSDD():
39AliITSClusterFinder(),
40fNclusters(0),
41fDAnode(0.0),
42fDTime(0.0),
43fTimeCorr(0.0),
44fCutAmplitude(0),
45fMinPeak(0),
46fMinCharge(0),
47fMinNCells(0),
48fMaxNCells(0){
49 // default constructor
50}
42da2935 51//______________________________________________________________________
8ba39da9 52AliITSClusterFinderSDD::AliITSClusterFinderSDD(AliITSDetTypeRec* dettyp,
50d05d7b 53 TClonesArray *digits,
aacedc3e 54 TClonesArray *recp):
8ba39da9 55AliITSClusterFinder(dettyp),
aacedc3e 56fNclusters(0),
57fDAnode(0.0),
58fDTime(0.0),
59fTimeCorr(0.0),
60fCutAmplitude(0),
61fMinPeak(0),
62fMinCharge(0),
63fMinNCells(0),
64fMaxNCells(0){
42da2935 65 // standard constructor
78a228db 66
aacedc3e 67 SetDigits(digits);
68 SetClusters(recp);
8ba39da9 69 SetCutAmplitude(fDetTypeRec->GetITSgeom()->GetStartSDD());
b0f5e3fc 70 SetDAnode();
71 SetDTime();
fcf95fc7 72 SetMinPeak((Int_t)(((AliITSCalibrationSDD*)GetResp(fDetTypeRec->GetITSgeom()->GetStartSDD()))->
aacedc3e 73 GetNoiseAfterElectronics()*5));
355ccb70 74 // SetMinPeak();
78a228db 75 SetMinNCells();
76 SetMaxNCells();
77 SetTimeCorr();
a1f090e0 78 SetMinCharge();
aacedc3e 79 SetMap(new AliITSMapA1(GetSeg(),Digits(),fCutAmplitude));
e8189707 80}
42da2935 81//______________________________________________________________________
8ba39da9 82void AliITSClusterFinderSDD::SetCutAmplitude(Int_t mod,Double_t nsigma){
42da2935 83 // set the signal threshold for cluster finder
aacedc3e 84 Double_t baseline,noise,noiseAfterEl;
42da2935 85
8ba39da9 86 GetResp(mod)->GetNoiseParam(noise,baseline);
fcf95fc7 87 noiseAfterEl = ((AliITSCalibrationSDD*)GetResp(mod))->GetNoiseAfterElectronics();
bf3f2830 88 fCutAmplitude = (Int_t)((baseline + nsigma*noiseAfterEl));
5dd4cc39 89}
42da2935 90//______________________________________________________________________
91void AliITSClusterFinderSDD::Find1DClusters(){
92 // find 1D clusters
a1f090e0 93
42da2935 94 // retrieve the parameters
aacedc3e 95 Int_t fNofMaps = GetSeg()->Npz();
96 Int_t fMaxNofSamples = GetSeg()->Npx();
b48af428 97 Int_t fNofAnodes = fNofMaps/2;
98 Int_t dummy = 0;
aacedc3e 99 Double_t fTimeStep = GetSeg()->Dpx(dummy);
100 Double_t fSddLength = GetSeg()->Dx();
fcf95fc7 101 Double_t fDriftSpeed = GetResp(fModule)->GetDriftSpeed();
aacedc3e 102 Double_t anodePitch = GetSeg()->Dpz(dummy);
42da2935 103
104 // map the signal
aacedc3e 105 Map()->ClearMap();
106 Map()->SetThreshold(fCutAmplitude);
107 Map()->FillMap();
a1f090e0 108
aacedc3e 109 Double_t noise;
110 Double_t baseline;
8ba39da9 111 GetResp(fModule)->GetNoiseParam(noise,baseline);
a1f090e0 112
42da2935 113 Int_t nofFoundClusters = 0;
114 Int_t i;
aacedc3e 115 Double_t **dfadc = new Double_t*[fNofAnodes];
116 for(i=0;i<fNofAnodes;i++) dfadc[i] = new Double_t[fMaxNofSamples];
117 Double_t fadc = 0.;
118 Double_t fadc1 = 0.;
119 Double_t fadc2 = 0.;
42da2935 120 Int_t j,k,idx,l,m;
121 for(j=0;j<2;j++) {
50d05d7b 122 for(k=0;k<fNofAnodes;k++) {
123 idx = j*fNofAnodes+k;
124 // signal (fadc) & derivative (dfadc)
125 dfadc[k][255]=0.;
126 for(l=0; l<fMaxNofSamples; l++) {
aacedc3e 127 fadc2=(Double_t)Map()->GetSignal(idx,l);
128 if(l>0) fadc1=(Double_t)Map()->GetSignal(idx,l-1);
50d05d7b 129 if(l>0) dfadc[k][l-1] = fadc2-fadc1;
130 } // samples
131 } // anodes
42da2935 132
50d05d7b 133 for(k=0;k<fNofAnodes;k++) {
f77f13c8 134 AliDebug(5,Form("Anode: %d, Wing: %d",k+1,j+1));
50d05d7b 135 idx = j*fNofAnodes+k;
136 Int_t imax = 0;
137 Int_t imaxd = 0;
138 Int_t it = 0;
139 while(it <= fMaxNofSamples-3) {
140 imax = it;
141 imaxd = it;
142 // maximum of signal
aacedc3e 143 Double_t fadcmax = 0.;
144 Double_t dfadcmax = 0.;
50d05d7b 145 Int_t lthrmina = 1;
146 Int_t lthrmint = 3;
147 Int_t lthra = 1;
148 Int_t lthrt = 0;
149 for(m=0;m<20;m++) {
150 Int_t id = it+m;
151 if(id>=fMaxNofSamples) break;
aacedc3e 152 fadc=(float)Map()->GetSignal(idx,id);
50d05d7b 153 if(fadc > fadcmax) { fadcmax = fadc; imax = id;}
aacedc3e 154 if(fadc > (float)fCutAmplitude)lthrt++;
50d05d7b 155 if(dfadc[k][id] > dfadcmax) {
156 dfadcmax = dfadc[k][id];
157 imaxd = id;
158 } // end if
159 } // end for m
160 it = imaxd;
aacedc3e 161 if(Map()->TestHit(idx,imax) == kEmpty) {it++; continue;}
50d05d7b 162 // cluster charge
163 Int_t tstart = it-2;
164 if(tstart < 0) tstart = 0;
165 Bool_t ilcl = 0;
166 if(lthrt >= lthrmint && lthra >= lthrmina) ilcl = 1;
167 if(ilcl) {
168 nofFoundClusters++;
169 Int_t tstop = tstart;
aacedc3e 170 Double_t dfadcmin = 10000.;
50d05d7b 171 Int_t ij;
172 for(ij=0; ij<20; ij++) {
173 if(tstart+ij > 255) { tstop = 255; break; }
aacedc3e 174 fadc=(float)Map()->GetSignal(idx,tstart+ij);
50d05d7b 175 if((dfadc[k][tstart+ij] < dfadcmin) &&
176 (fadc > fCutAmplitude)) {
177 tstop = tstart+ij+5;
178 if(tstop > 255) tstop = 255;
179 dfadcmin = dfadc[k][it+ij];
180 } // end if
181 } // end for ij
42da2935 182
aacedc3e 183 Double_t clusterCharge = 0.;
184 Double_t clusterAnode = k+0.5;
185 Double_t clusterTime = 0.;
50d05d7b 186 Int_t clusterMult = 0;
aacedc3e 187 Double_t clusterPeakAmplitude = 0.;
50d05d7b 188 Int_t its,peakpos = -1;
aacedc3e 189 Double_t n, baseline;
8ba39da9 190 GetResp(fModule)->GetNoiseParam(n,baseline);
50d05d7b 191 for(its=tstart; its<=tstop; its++) {
aacedc3e 192 fadc=(float)Map()->GetSignal(idx,its);
50d05d7b 193 if(fadc>baseline) fadc -= baseline;
194 else fadc = 0.;
195 clusterCharge += fadc;
196 // as a matter of fact we should take the peak
197 // pos before FFT
198 // to get the list of tracks !!!
199 if(fadc > clusterPeakAmplitude) {
200 clusterPeakAmplitude = fadc;
aacedc3e 201 //peakpos=Map()->GetHitIndex(idx,its);
50d05d7b 202 Int_t shift = (int)(fTimeCorr/fTimeStep);
203 if(its>shift && its<(fMaxNofSamples-shift))
aacedc3e 204 peakpos = Map()->GetHitIndex(idx,its+shift);
205 else peakpos = Map()->GetHitIndex(idx,its);
206 if(peakpos<0) peakpos =Map()->GetHitIndex(idx,its);
50d05d7b 207 } // end if
208 clusterTime += fadc*its;
209 if(fadc > 0) clusterMult++;
210 if(its == tstop) {
211 clusterTime /= (clusterCharge/fTimeStep); // ns
212 if(clusterTime>fTimeCorr) clusterTime -=fTimeCorr;
213 //ns
214 } // end if
215 } // end for its
42da2935 216
aacedc3e 217 Double_t clusteranodePath = (clusterAnode - fNofAnodes/2)*
218 anodePitch;
219 Double_t clusterDriftPath = clusterTime*fDriftSpeed;
50d05d7b 220 clusterDriftPath = fSddLength-clusterDriftPath;
221 if(clusterCharge <= 0.) break;
222 AliITSRawClusterSDD clust(j+1,//i
223 clusterAnode,clusterTime,//ff
224 clusterCharge, //f
225 clusterPeakAmplitude, //f
226 peakpos, //i
227 0.,0.,clusterDriftPath,//fff
228 clusteranodePath, //f
229 clusterMult, //i
230 0,0,0,0,0,0,0);//7*i
7d62fb64 231 fDetTypeRec->AddCluster(1,&clust);
50d05d7b 232 it = tstop;
233 } // ilcl
234 it++;
235 } // while (samples)
236 } // anodes
42da2935 237 } // detectors (2)
42da2935 238
239 for(i=0;i<fNofAnodes;i++) delete[] dfadc[i];
240 delete [] dfadc;
a1f090e0 241
42da2935 242 return;
a1f090e0 243}
42da2935 244//______________________________________________________________________
245void AliITSClusterFinderSDD::Find1DClustersE(){
24a1c341 246 // find 1D clusters
42da2935 247 // retrieve the parameters
aacedc3e 248 Int_t fNofMaps = GetSeg()->Npz();
249 Int_t fMaxNofSamples = GetSeg()->Npx();
42da2935 250 Int_t fNofAnodes = fNofMaps/2;
251 Int_t dummy=0;
aacedc3e 252 Double_t fTimeStep = GetSeg()->Dpx( dummy );
253 Double_t fSddLength = GetSeg()->Dx();
fcf95fc7 254 Double_t fDriftSpeed = GetResp(fModule)->GetDriftSpeed();
aacedc3e 255 Double_t anodePitch = GetSeg()->Dpz( dummy );
256 Double_t n, baseline;
8ba39da9 257 GetResp(fModule)->GetNoiseParam( n, baseline );
42da2935 258 // map the signal
aacedc3e 259 Map()->ClearMap();
260 Map()->SetThreshold( fCutAmplitude );
261 Map()->FillMap();
fcf95fc7 262
42da2935 263 Int_t nClu = 0;
50d05d7b 264 // cout << "Search cluster... "<< endl;
42da2935 265 for( Int_t j=0; j<2; j++ ){
50d05d7b 266 for( Int_t k=0; k<fNofAnodes; k++ ){
267 Int_t idx = j*fNofAnodes+k;
268 Bool_t on = kFALSE;
269 Int_t start = 0;
270 Int_t nTsteps = 0;
aacedc3e 271 Double_t fmax = 0.;
50d05d7b 272 Int_t lmax = 0;
aacedc3e 273 Double_t charge = 0.;
274 Double_t time = 0.;
275 Double_t anode = k+0.5;
50d05d7b 276 Int_t peakpos = -1;
277 for( Int_t l=0; l<fMaxNofSamples; l++ ){
aacedc3e 278 Double_t fadc = (Double_t)Map()->GetSignal( idx, l );
50d05d7b 279 if( fadc > 0.0 ){
280 if( on == kFALSE && l<fMaxNofSamples-4){
281 // star RawCluster (reset var.)
aacedc3e 282 Double_t fadc1 = (Double_t)Map()->GetSignal( idx, l+1 );
50d05d7b 283 if( fadc1 < fadc ) continue;
284 start = l;
285 fmax = 0.;
286 lmax = 0;
287 time = 0.;
288 charge = 0.;
289 on = kTRUE;
290 nTsteps = 0;
291 } // end if on...
292 nTsteps++ ;
293 if( fadc > baseline ) fadc -= baseline;
294 else fadc=0.;
295 charge += fadc;
296 time += fadc*l;
297 if( fadc > fmax ){
298 fmax = fadc;
299 lmax = l;
300 Int_t shift = (Int_t)(fTimeCorr/fTimeStep + 0.5);
301 if( l > shift && l < (fMaxNofSamples-shift) )
aacedc3e 302 peakpos = Map()->GetHitIndex( idx, l+shift );
50d05d7b 303 else
aacedc3e 304 peakpos = Map()->GetHitIndex( idx, l );
305 if( peakpos < 0) peakpos = Map()->GetHitIndex(idx,l);
50d05d7b 306 } // end if fadc
307 }else{ // end fadc>0
308 if( on == kTRUE ){
309 if( nTsteps > 2 ){
310 // min # of timesteps for a RawCluster
311 // Found a RawCluster...
312 Int_t stop = l-1;
313 time /= (charge/fTimeStep); // ns
314 // time = lmax*fTimeStep; // ns
315 if( time > fTimeCorr ) time -= fTimeCorr; // ns
aacedc3e 316 Double_t anodePath =(anode-fNofAnodes/2)*anodePitch;
317 Double_t driftPath = time*fDriftSpeed;
50d05d7b 318 driftPath = fSddLength-driftPath;
319 AliITSRawClusterSDD clust(j+1,anode,time,charge,
320 fmax, peakpos,0.,0.,
321 driftPath,anodePath,
322 nTsteps,start,stop,
323 start, stop, 1, k, k );
7d62fb64 324 fDetTypeRec->AddCluster( 1, &clust );
f77f13c8 325 if(AliDebugLevel()>=5) clust.PrintInfo();
50d05d7b 326 nClu++;
327 } // end if nTsteps
328 on = kFALSE;
329 } // end if on==kTRUE
330 } // end if fadc>0
331 } // samples
332 } // anodes
42da2935 333 } // wings
f77f13c8 334 AliDebug(3,Form("# Rawclusters %d",nClu));
42da2935 335 return;
a1f090e0 336}
42da2935 337//_______________________________________________________________________
aacedc3e 338Int_t AliITSClusterFinderSDD::SearchPeak(Double_t *spect,Int_t xdim,Int_t zdim,
50d05d7b 339 Int_t *peakX, Int_t *peakZ,
aacedc3e 340 Double_t *peakAmp, Double_t minpeak ){
42da2935 341 // search peaks on a 2D cluster
342 Int_t npeak = 0; // # peaks
56fff130 343 Int_t i,j;
42da2935 344 // search peaks
345 for( Int_t z=1; z<zdim-1; z++ ){
48058160 346 for( Int_t x=1; x<xdim-2; x++ ){
aacedc3e 347 Double_t sxz = spect[x*zdim+z];
348 Double_t sxz1 = spect[(x+1)*zdim+z];
349 Double_t sxz2 = spect[(x-1)*zdim+z];
50d05d7b 350 // search a local max. in s[x,z]
351 if( sxz < minpeak || sxz1 <= 0 || sxz2 <= 0 ) continue;
352 if( sxz >= spect[(x+1)*zdim+z ] && sxz >= spect[(x-1)*zdim+z ] &&
353 sxz >= spect[x*zdim +z+1] && sxz >= spect[x*zdim +z-1] &&
354 sxz >= spect[(x+1)*zdim+z+1] && sxz >= spect[(x+1)*zdim+z-1] &&
355 sxz >= spect[(x-1)*zdim+z+1] && sxz >= spect[(x-1)*zdim+z-1] ){
356 // peak found
357 peakX[npeak] = x;
358 peakZ[npeak] = z;
359 peakAmp[npeak] = sxz;
360 npeak++;
361 } // end if ....
362 } // end for x
42da2935 363 } // end for z
364 // search groups of peaks with same amplitude.
365 Int_t *flag = new Int_t[npeak];
366 for( i=0; i<npeak; i++ ) flag[i] = 0;
367 for( i=0; i<npeak; i++ ){
50d05d7b 368 for( j=0; j<npeak; j++ ){
369 if( i==j) continue;
370 if( flag[j] > 0 ) continue;
371 if( peakAmp[i] == peakAmp[j] &&
372 TMath::Abs(peakX[i]-peakX[j])<=1 &&
373 TMath::Abs(peakZ[i]-peakZ[j])<=1 ){
374 if( flag[i] == 0) flag[i] = i+1;
375 flag[j] = flag[i];
376 } // end if ...
377 } // end for j
42da2935 378 } // end for i
50d05d7b 379 // make average of peak groups
42da2935 380 for( i=0; i<npeak; i++ ){
50d05d7b 381 Int_t nFlag = 1;
382 if( flag[i] <= 0 ) continue;
383 for( j=0; j<npeak; j++ ){
384 if( i==j ) continue;
385 if( flag[j] != flag[i] ) continue;
386 peakX[i] += peakX[j];
387 peakZ[i] += peakZ[j];
388 nFlag++;
389 npeak--;
390 for( Int_t k=j; k<npeak; k++ ){
391 peakX[k] = peakX[k+1];
392 peakZ[k] = peakZ[k+1];
393 peakAmp[k] = peakAmp[k+1];
394 flag[k] = flag[k+1];
395 } // end for k
396 j--;
397 } // end for j
398 if( nFlag > 1 ){
399 peakX[i] /= nFlag;
400 peakZ[i] /= nFlag;
401 } // end fi nFlag
42da2935 402 } // end for i
403 delete [] flag;
404 return( npeak );
a1f090e0 405}
42da2935 406//______________________________________________________________________
aacedc3e 407void AliITSClusterFinderSDD::PeakFunc( Int_t xdim, Int_t zdim, Double_t *par,
408 Double_t *spe, Double_t *integral){
24a1c341 409 // function used to fit the clusters
50d05d7b 410 // par -> parameters..
24a1c341 411 // par[0] number of peaks.
412 // for each peak i=1, ..., par[0]
50d05d7b 413 // par[i] = Ampl.
414 // par[i+1] = xpos
415 // par[i+2] = zpos
416 // par[i+3] = tau
417 // par[i+4] = sigma.
fcf95fc7 418 Int_t electronics = GetResp(fModule)->GetElectronics(); // 1 = PASCAL, 2 = OLA
24a1c341 419 const Int_t knParam = 5;
420 Int_t npeak = (Int_t)par[0];
42da2935 421
aacedc3e 422 memset( spe, 0, sizeof( Double_t )*zdim*xdim );
42da2935 423
24a1c341 424 Int_t k = 1;
42da2935 425 for( Int_t i=0; i<npeak; i++ ){
24a1c341 426 if( integral != 0 ) integral[i] = 0.;
aacedc3e 427 Double_t sigmaA2 = par[k+4]*par[k+4]*2.;
428 Double_t t2 = par[k+3]; // PASCAL
bf3f2830 429 if( electronics == 2 ) { t2 *= t2; t2 *= 2; } // OLA
42da2935 430 for( Int_t z=0; z<zdim; z++ ){
431 for( Int_t x=0; x<xdim; x++ ){
aacedc3e 432 Double_t z2 = (z-par[k+2])*(z-par[k+2])/sigmaA2;
433 Double_t x2 = 0.;
434 Double_t signal = 0.;
42da2935 435 if( electronics == 1 ){ // PASCAL
bf3f2830 436 x2 = (x-par[k+1]+t2)/t2;
42da2935 437 signal = (x2>0.) ? par[k]*x2*exp(-x2+1.-z2) :0.0; // RCCR2
438 // signal =(x2>0.) ? par[k]*x2*x2*exp(-2*x2+2.-z2 ):0.0;//RCCR
439 }else if( electronics == 2 ) { // OLA
bf3f2830 440 x2 = (x-par[k+1])*(x-par[k+1])/t2;
50d05d7b 441 signal = par[k] * exp( -x2 - z2 );
442 } else {
aacedc3e 443 Warning("PeakFunc","Wrong SDD Electronics = %d",
444 electronics);
50d05d7b 445 // exit( 1 );
446 } // end if electronicx
24a1c341 447 spe[x*zdim+z] += signal;
448 if( integral != 0 ) integral[i] += signal;
42da2935 449 } // end for x
450 } // end for z
24a1c341 451 k += knParam;
42da2935 452 } // end for i
24a1c341 453 return;
a1f090e0 454}
42da2935 455//__________________________________________________________________________
aacedc3e 456Double_t AliITSClusterFinderSDD::ChiSqr( Int_t xdim, Int_t zdim, Double_t *spe,
457 Double_t *speFit ) const{
42da2935 458 // EVALUATES UNNORMALIZED CHI-SQUARED
aacedc3e 459 Double_t chi2 = 0.;
42da2935 460 for( Int_t z=0; z<zdim; z++ ){
50d05d7b 461 for( Int_t x=1; x<xdim-1; x++ ){
462 Int_t index = x*zdim+z;
aacedc3e 463 Double_t tmp = spe[index] - speFit[index];
50d05d7b 464 chi2 += tmp*tmp;
465 } // end for x
42da2935 466 } // end for z
467 return( chi2 );
a1f090e0 468}
42da2935 469//_______________________________________________________________________
aacedc3e 470void AliITSClusterFinderSDD::Minim( Int_t xdim, Int_t zdim, Double_t *param,
471 Double_t *prm0,Double_t *steprm,
472 Double_t *chisqr,Double_t *spe,
473 Double_t *speFit ){
42da2935 474 //
475 Int_t k, nnn, mmm, i;
aacedc3e 476 Double_t p1, delta, d1, chisq1, p2, chisq2, t, p3, chisq3, a, b, p0, chisqt;
42da2935 477 const Int_t knParam = 5;
478 Int_t npeak = (Int_t)param[0];
479 for( k=1; k<(npeak*knParam+1); k++ ) prm0[k] = param[k];
480 for( k=1; k<(npeak*knParam+1); k++ ){
50d05d7b 481 p1 = param[k];
482 delta = steprm[k];
483 d1 = delta;
484 // ENSURE THAT STEP SIZE IS SENSIBLY LARGER THAN MACHINE ROUND OFF
f4b7cee4 485 if( TMath::Abs( p1 ) > 1.0E-6 )
486 if ( TMath::Abs( delta/p1 ) < 1.0E-4 ) delta = p1/1000;
aacedc3e 487 else delta = (Double_t)1.0E-4;
50d05d7b 488 // EVALUATE CHI-SQUARED AT FIRST TWO SEARCH POINTS
489 PeakFunc( xdim, zdim, param, speFit );
490 chisq1 = ChiSqr( xdim, zdim, spe, speFit );
491 p2 = p1+delta;
492 param[k] = p2;
493 PeakFunc( xdim, zdim, param, speFit );
494 chisq2 = ChiSqr( xdim, zdim, spe, speFit );
495 if( chisq1 < chisq2 ){
496 // REVERSE DIRECTION OF SEARCH IF CHI-SQUARED IS INCREASING
497 delta = -delta;
498 t = p1;
499 p1 = p2;
500 p2 = t;
501 t = chisq1;
502 chisq1 = chisq2;
503 chisq2 = t;
504 } // end if
505 i = 1; nnn = 0;
506 do { // INCREMENT param(K) UNTIL CHI-SQUARED STARTS TO INCREASE
507 nnn++;
508 p3 = p2 + delta;
509 mmm = nnn - (nnn/5)*5; // multiplo de 5
510 if( mmm == 0 ){
511 d1 = delta;
512 // INCREASE STEP SIZE IF STEPPING TOWARDS MINIMUM IS TOO SLOW
513 delta *= 5;
514 } // end if
515 param[k] = p3;
516 // Constrain paramiters
517 Int_t kpos = (k-1) % knParam;
518 switch( kpos ){
519 case 0 :
520 if( param[k] <= 20 ) param[k] = fMinPeak;
521 break;
522 case 1 :
f4b7cee4 523 if( TMath::Abs( param[k] - prm0[k] ) > 1.5 ) param[k] = prm0[k];
50d05d7b 524 break;
525 case 2 :
f4b7cee4 526 if( TMath::Abs( param[k] - prm0[k] ) > 1. ) param[k] = prm0[k];
50d05d7b 527 break;
528 case 3 :
529 if( param[k] < .5 ) param[k] = .5;
530 break;
531 case 4 :
aacedc3e 532 if( param[k] < .288 ) param[k] = .288;// 1/sqrt(12) = 0.288
50d05d7b 533 if( param[k] > zdim*.5 ) param[k] = zdim*.5;
534 break;
535 }; // end switch
536 PeakFunc( xdim, zdim, param, speFit );
537 chisq3 = ChiSqr( xdim, zdim, spe, speFit );
538 if( chisq3 < chisq2 && nnn < 50 ){
539 p1 = p2;
540 p2 = p3;
541 chisq1 = chisq2;
542 chisq2 = chisq3;
543 }else i=0;
544 } while( i );
545 // FIND MINIMUM OF PARABOLA DEFINED BY LAST THREE POINTS
546 a = chisq1*(p2-p3)+chisq2*(p3-p1)+chisq3*(p1-p2);
547 b = chisq1*(p2*p2-p3*p3)+chisq2*(p3*p3-p1*p1)+chisq3*(p1*p1-p2*p2);
aacedc3e 548 if( a!=0 ) p0 = (Double_t)(0.5*b/a);
50d05d7b 549 else p0 = 10000;
550 //--IN CASE OF NEARLY EQUAL CHI-SQUARED AND TOO SMALL STEP SIZE PREVENT
551 // ERRONEOUS EVALUATION OF PARABOLA MINIMUM
552 //---NEXT TWO LINES CAN BE OMITTED FOR HIGHER PRECISION MACHINES
f4b7cee4 553 //dp = (Double_t) max (TMath::Abs(p3-p2), TMath::Abs(p2-p1));
554 //if( TMath::Abs( p2-p0 ) > dp ) p0 = p2;
50d05d7b 555 param[k] = p0;
556 // Constrain paramiters
557 Int_t kpos = (k-1) % knParam;
558 switch( kpos ){
559 case 0 :
560 if( param[k] <= 20 ) param[k] = fMinPeak;
561 break;
562 case 1 :
f4b7cee4 563 if( TMath::Abs( param[k] - prm0[k] ) > 1.5 ) param[k] = prm0[k];
50d05d7b 564 break;
565 case 2 :
f4b7cee4 566 if( TMath::Abs( param[k] - prm0[k] ) > 1. ) param[k] = prm0[k];
50d05d7b 567 break;
568 case 3 :
569 if( param[k] < .5 ) param[k] = .5;
570 break;
571 case 4 :
572 if( param[k] < .288 ) param[k] = .288; // 1/sqrt(12) = 0.288
573 if( param[k] > zdim*.5 ) param[k] = zdim*.5;
574 break;
575 }; // end switch
576 PeakFunc( xdim, zdim, param, speFit );
577 chisqt = ChiSqr( xdim, zdim, spe, speFit );
578 // DO NOT ALLOW ERRONEOUS INTERPOLATION
579 if( chisqt <= *chisqr ) *chisqr = chisqt;
580 else param[k] = prm0[k];
581 // OPTIMIZE SEARCH STEP FOR EVENTUAL NEXT CALL OF MINIM
582 steprm[k] = (param[k]-prm0[k])/5;
583 if( steprm[k] >= d1 ) steprm[k] = d1/5;
42da2935 584 } // end for k
585 // EVALUATE FIT AND CHI-SQUARED FOR OPTIMIZED PARAMETERS
586 PeakFunc( xdim, zdim, param, speFit );
587 *chisqr = ChiSqr( xdim, zdim, spe, speFit );
588 return;
a1f090e0 589}
42da2935 590//_________________________________________________________________________
591Int_t AliITSClusterFinderSDD::NoLinearFit( Int_t xdim, Int_t zdim,
aacedc3e 592 Double_t *param, Double_t *spe,
593 Int_t *niter, Double_t *chir ){
42da2935 594 // fit method from Comput. Phys. Commun 46(1987) 149
aacedc3e 595 const Double_t kchilmt = 0.01; // relative accuracy
50d05d7b 596 const Int_t knel = 3; // for parabolic minimization
597 const Int_t knstop = 50; // Max. iteration number
42da2935 598 const Int_t knParam = 5;
599 Int_t npeak = (Int_t)param[0];
600 // RETURN IF NUMBER OF DEGREES OF FREEDOM IS NOT POSITIVE
601 if( (xdim*zdim - npeak*knParam) <= 0 ) return( -1 );
aacedc3e 602 Double_t degFree = (xdim*zdim - npeak*knParam)-1;
42da2935 603 Int_t n, k, iterNum = 0;
aacedc3e 604 Double_t *prm0 = new Double_t[npeak*knParam+1];
605 Double_t *step = new Double_t[npeak*knParam+1];
606 Double_t *schi = new Double_t[npeak*knParam+1];
607 Double_t *sprm[3];
608 sprm[0] = new Double_t[npeak*knParam+1];
609 sprm[1] = new Double_t[npeak*knParam+1];
610 sprm[2] = new Double_t[npeak*knParam+1];
611 Double_t chi0, chi1, reldif, a, b, prmin, dp;
612 Double_t *speFit = new Double_t[ xdim*zdim ];
42da2935 613 PeakFunc( xdim, zdim, param, speFit );
614 chi0 = ChiSqr( xdim, zdim, spe, speFit );
615 chi1 = chi0;
616 for( k=1; k<(npeak*knParam+1); k++) prm0[k] = param[k];
50d05d7b 617 for( k=1 ; k<(npeak*knParam+1); k+=knParam ){
618 step[k] = param[k] / 20.0 ;
619 step[k+1] = param[k+1] / 50.0;
620 step[k+2] = param[k+2] / 50.0;
621 step[k+3] = param[k+3] / 20.0;
622 step[k+4] = param[k+4] / 20.0;
623 } // end for k
42da2935 624 Int_t out = 0;
625 do{
50d05d7b 626 iterNum++;
627 chi0 = chi1;
628 Minim( xdim, zdim, param, prm0, step, &chi1, spe, speFit );
f4b7cee4 629 reldif = ( chi1 > 0 ) ? ((Double_t) TMath::Abs( chi1-chi0)/chi1 ) : 0;
50d05d7b 630 // EXIT conditions
631 if( reldif < (float) kchilmt ){
632 *chir = (chi1>0) ? (float) TMath::Sqrt (chi1/degFree) :0;
633 *niter = iterNum;
634 out = 0;
635 break;
636 } // end if
637 if( (reldif < (float)(5*kchilmt)) && (iterNum > knstop) ){
638 *chir = (chi1>0) ?(float) TMath::Sqrt (chi1/degFree):0;
639 *niter = iterNum;
640 out = 0;
641 break;
642 } // end if
643 if( iterNum > 5*knstop ){
644 *chir = (chi1>0) ?(float) TMath::Sqrt (chi1/degFree):0;
645 *niter = iterNum;
646 out = 1;
647 break;
648 } // end if
649 if( iterNum <= knel ) continue;
650 n = iterNum - (iterNum/knel)*knel; // EXTRAPOLATION LIMIT COUNTER N
651 if( n > 3 || n == 0 ) continue;
652 schi[n-1] = chi1;
653 for( k=1; k<(npeak*knParam+1); k++ ) sprm[n-1][k] = param[k];
654 if( n != 3 ) continue;
655 // -EVALUATE EXTRAPOLATED VALUE OF EACH PARAMETER BY FINDING MINIMUM OF
656 // PARABOLA DEFINED BY LAST THREE CALLS OF MINIM
657 for( k=1; k<(npeak*knParam+1); k++ ){
aacedc3e 658 Double_t tmp0 = sprm[0][k];
659 Double_t tmp1 = sprm[1][k];
660 Double_t tmp2 = sprm[2][k];
50d05d7b 661 a = schi[0]*(tmp1-tmp2) + schi[1]*(tmp2-tmp0);
662 a += (schi[2]*(tmp0-tmp1));
663 b = schi[0]*(tmp1*tmp1-tmp2*tmp2);
664 b += (schi[1]*(tmp2*tmp2-tmp0*tmp0)+(schi[2]*
665 (tmp0*tmp0-tmp1*tmp1)));
666 if ((double)a < 1.0E-6) prmin = 0;
667 else prmin = (float) (0.5*b/a);
668 dp = 5*(tmp2-tmp0);
f4b7cee4 669 if( TMath::Abs(prmin-tmp2) > TMath::Abs(dp) ) prmin = tmp2+dp;
50d05d7b 670 param[k] = prmin;
671 step[k] = dp/10; // OPTIMIZE SEARCH STEP
672 } // end for k
42da2935 673 } while( kTRUE );
674 delete [] prm0;
675 delete [] step;
676 delete [] schi;
677 delete [] sprm[0];
678 delete [] sprm[1];
679 delete [] sprm[2];
680 delete [] speFit;
681 return( out );
a1f090e0 682}
50d05d7b 683
42da2935 684//______________________________________________________________________
04366a57 685void AliITSClusterFinderSDD::ResolveClusters(){
42da2935 686 // The function to resolve clusters if the clusters overlapping exists
24a1c341 687 Int_t i;
42da2935 688 // get number of clusters for this module
aacedc3e 689 Int_t nofClusters = NClusters();
42da2935 690 nofClusters -= fNclusters;
aacedc3e 691 Int_t fNofMaps = GetSeg()->Npz();
42da2935 692 Int_t fNofAnodes = fNofMaps/2;
aacedc3e 693 //Int_t fMaxNofSamples = GetSeg()->Npx();
42da2935 694 Int_t dummy=0;
aacedc3e 695 Double_t fTimeStep = GetSeg()->Dpx( dummy );
696 Double_t fSddLength = GetSeg()->Dx();
fcf95fc7 697 Double_t fDriftSpeed = GetResp(fModule)->GetDriftSpeed();
aacedc3e 698 Double_t anodePitch = GetSeg()->Dpz( dummy );
699 Double_t n, baseline;
8ba39da9 700 GetResp(fModule)->GetNoiseParam( n, baseline );
fcf95fc7 701 Int_t electronics =GetResp(fModule)->GetElectronics(); // 1 = PASCAL, 2 = OLA
50d05d7b 702
42da2935 703 for( Int_t j=0; j<nofClusters; j++ ){
50d05d7b 704 // get cluster information
aacedc3e 705 AliITSRawClusterSDD *clusterJ=(AliITSRawClusterSDD*) Cluster(j);
50d05d7b 706 Int_t astart = clusterJ->Astart();
707 Int_t astop = clusterJ->Astop();
708 Int_t tstart = clusterJ->Tstartf();
709 Int_t tstop = clusterJ->Tstopf();
710 Int_t wing = (Int_t)clusterJ->W();
711 if( wing == 2 ){
712 astart += fNofAnodes;
713 astop += fNofAnodes;
714 } // end if
715 Int_t xdim = tstop-tstart+3;
716 Int_t zdim = astop-astart+3;
d86f531c 717 if( xdim > 50 || zdim > 30 ) {
04366a57 718 Warning("ResolveClusters","xdim: %d , zdim: %d ",xdim,zdim);
d86f531c 719 continue;
720 }
aacedc3e 721 Double_t *sp = new Double_t[ xdim*zdim+1 ];
722 memset( sp, 0, sizeof(Double_t)*(xdim*zdim+1) );
50d05d7b 723
724 // make a local map from cluster region
725 for( Int_t ianode=astart; ianode<=astop; ianode++ ){
726 for( Int_t itime=tstart; itime<=tstop; itime++ ){
aacedc3e 727 Double_t fadc = Map()->GetSignal( ianode, itime );
50d05d7b 728 if( fadc > baseline ) fadc -= (Double_t)baseline;
729 else fadc = 0.;
730 Int_t index = (itime-tstart+1)*zdim+(ianode-astart+1);
731 sp[index] = fadc;
732 } // time loop
733 } // anode loop
734
735 // search peaks on cluster
736 const Int_t kNp = 150;
737 Int_t peakX1[kNp];
738 Int_t peakZ1[kNp];
aacedc3e 739 Double_t peakAmp1[kNp];
50d05d7b 740 Int_t npeak = SearchPeak(sp,xdim,zdim,peakX1,peakZ1,peakAmp1,fMinPeak);
741
742 // if multiple peaks, split cluster
aacedc3e 743 if( npeak >= 1 ){
50d05d7b 744 // cout << "npeak " << npeak << endl;
745 // clusterJ->PrintInfo();
aacedc3e 746 Double_t *par = new Double_t[npeak*5+1];
747 par[0] = (Double_t)npeak;
48058160 748 // Initial parameters in cell dimentions
50d05d7b 749 Int_t k1 = 1;
750 for( i=0; i<npeak; i++ ){
751 par[k1] = peakAmp1[i];
752 par[k1+1] = peakX1[i]; // local time pos. [timebin]
753 par[k1+2] = peakZ1[i]; // local anode pos. [anodepitch]
aacedc3e 754 if( electronics == 1 ) par[k1+3] = 2.; // PASCAL
755 else if(electronics==2) par[k1+3] = 0.7;//tau [timebin] OLA
50d05d7b 756 par[k1+4] = .4; // sigma [anodepich]
aacedc3e 757 k1 += 5;
50d05d7b 758 } // end for i
759 Int_t niter;
aacedc3e 760 Double_t chir;
50d05d7b 761 NoLinearFit( xdim, zdim, par, sp, &niter, &chir );
aacedc3e 762 Double_t peakX[kNp];
763 Double_t peakZ[kNp];
764 Double_t sigma[kNp];
765 Double_t tau[kNp];
766 Double_t peakAmp[kNp];
767 Double_t integral[kNp];
50d05d7b 768 //get integrals => charge for each peak
769 PeakFunc( xdim, zdim, par, sp, integral );
770 k1 = 1;
771 for( i=0; i<npeak; i++ ){
772 peakAmp[i] = par[k1];
d86f531c 773 peakX[i] = par[k1+1];
774 peakZ[i] = par[k1+2];
775 tau[i] = par[k1+3];
776 sigma[i] = par[k1+4];
50d05d7b 777 k1+=5;
778 } // end for i
779 // calculate parameter for new clusters
780 for( i=0; i<npeak; i++ ){
781 AliITSRawClusterSDD clusterI( *clusterJ );
d86f531c 782
50d05d7b 783 Int_t newAnode = peakZ1[i]-1 + astart;
d86f531c 784
785 // Int_t newiTime = peakX1[i]-1 + tstart;
786 // Int_t shift = (Int_t)(fTimeCorr/fTimeStep + 0.5);
787 // if( newiTime > shift && newiTime < (fMaxNofSamples-shift) )
788 // shift = 0;
aacedc3e 789 // Int_t peakpos = Map()->GetHitIndex(newAnode,newiTime+shift );
d86f531c 790 // clusterI.SetPeakPos( peakpos );
791
50d05d7b 792 clusterI.SetPeakAmpl( peakAmp1[i] );
aacedc3e 793 Double_t newAnodef = peakZ[i] - 0.5 + astart;
794 Double_t newiTimef = peakX[i] - 1 + tstart;
50d05d7b 795 if( wing == 2 ) newAnodef -= fNofAnodes;
aacedc3e 796 Double_t anodePath = (newAnodef - fNofAnodes/2)*anodePitch;
50d05d7b 797 newiTimef *= fTimeStep;
798 if( newiTimef > fTimeCorr ) newiTimef -= fTimeCorr;
799 if( electronics == 1 ){
48058160 800 // newiTimef *= 0.999438; // PASCAL
801 // newiTimef += (6./fDriftSpeed - newiTimef/3000.);
50d05d7b 802 }else if( electronics == 2 )
803 newiTimef *= 0.99714; // OLA
d86f531c 804
805 Int_t timeBin = (Int_t)(newiTimef/fTimeStep+0.5);
aacedc3e 806 Int_t peakpos = Map()->GetHitIndex( newAnode, timeBin );
d86f531c 807 if( peakpos < 0 ) {
808 for( Int_t ii=0; ii<3; ii++ ) {
aacedc3e 809 peakpos = Map()->GetHitIndex( newAnode, timeBin+ii );
d86f531c 810 if( peakpos > 0 ) break;
aacedc3e 811 peakpos = Map()->GetHitIndex( newAnode, timeBin-ii );
d86f531c 812 if( peakpos > 0 ) break;
813 }
814 }
815
816 if( peakpos < 0 ) {
04366a57 817 //Warning("ResolveClusters",
aacedc3e 818 // "Digit not found for cluster");
f77f13c8 819 //if(AliDebugLevel()>=3) clusterI.PrintInfo();
d86f531c 820 continue;
821 }
822 clusterI.SetPeakPos( peakpos );
aacedc3e 823 Double_t driftPath = fSddLength - newiTimef * fDriftSpeed;
824 Double_t sign = ( wing == 1 ) ? -1. : 1.;
50d05d7b 825 clusterI.SetX( driftPath*sign * 0.0001 );
826 clusterI.SetZ( anodePath * 0.0001 );
827 clusterI.SetAnode( newAnodef );
828 clusterI.SetTime( newiTimef );
829 clusterI.SetAsigma( sigma[i]*anodePitch );
830 clusterI.SetTsigma( tau[i]*fTimeStep );
831 clusterI.SetQ( integral[i] );
d86f531c 832
7d62fb64 833 fDetTypeRec->AddCluster( 1, &clusterI );
50d05d7b 834 } // end for i
aacedc3e 835 Clusters()->RemoveAt( j );
50d05d7b 836 delete [] par;
48058160 837 } else { // something odd
04366a57 838 Warning( "ResolveClusters",
aacedc3e 839 "--- Peak not found!!!! minpeak=%d ,cluster peak= %f"
840 " , module= %d",
841 fMinPeak, clusterJ->PeakAmpl(),GetModule());
d86f531c 842 clusterJ->PrintInfo();
04366a57 843 Warning( "ResolveClusters"," xdim= %d zdim= %d", xdim-2, zdim-2 );
50d05d7b 844 }
845 delete [] sp;
42da2935 846 } // cluster loop
aacedc3e 847 Clusters()->Compress();
848// Map()->ClearMap();
a1f090e0 849}
42da2935 850//________________________________________________________________________
851void AliITSClusterFinderSDD::GroupClusters(){
852 // group clusters
853 Int_t dummy=0;
aacedc3e 854 Double_t fTimeStep = GetSeg()->Dpx(dummy);
42da2935 855 // get number of clusters for this module
aacedc3e 856 Int_t nofClusters = NClusters();
42da2935 857 nofClusters -= fNclusters;
858 AliITSRawClusterSDD *clusterI;
859 AliITSRawClusterSDD *clusterJ;
860 Int_t *label = new Int_t [nofClusters];
861 Int_t i,j;
862 for(i=0; i<nofClusters; i++) label[i] = 0;
863 for(i=0; i<nofClusters; i++) {
50d05d7b 864 if(label[i] != 0) continue;
865 for(j=i+1; j<nofClusters; j++) {
866 if(label[j] != 0) continue;
aacedc3e 867 clusterI = (AliITSRawClusterSDD*) Cluster(i);
868 clusterJ = (AliITSRawClusterSDD*) Cluster(j);
50d05d7b 869 // 1.3 good
870 if(clusterI->T() < fTimeStep*60) fDAnode = 4.2; // TB 3.2
871 if(clusterI->T() < fTimeStep*10) fDAnode = 1.5; // TB 1.
872 Bool_t pair = clusterI->Brother(clusterJ,fDAnode,fDTime);
873 if(!pair) continue;
f77f13c8 874 if(AliDebugLevel()>=4){
aacedc3e 875 clusterI->PrintInfo();
876 clusterJ->PrintInfo();
f77f13c8 877 } // end if AliDebugLevel
50d05d7b 878 clusterI->Add(clusterJ);
879 label[j] = 1;
aacedc3e 880 Clusters()->RemoveAt(j);
50d05d7b 881 j=i; // <- Ernesto
882 } // J clusters
883 label[i] = 1;
42da2935 884 } // I clusters
aacedc3e 885 Clusters()->Compress();
42da2935 886
887 delete [] label;
888 return;
b0f5e3fc 889}
42da2935 890//________________________________________________________________________
891void AliITSClusterFinderSDD::SelectClusters(){
892 // get number of clusters for this module
aacedc3e 893 Int_t nofClusters = NClusters();
b0f5e3fc 894
42da2935 895 nofClusters -= fNclusters;
896 Int_t i;
897 for(i=0; i<nofClusters; i++) {
aacedc3e 898 AliITSRawClusterSDD *clusterI =(AliITSRawClusterSDD*) Cluster(i);
50d05d7b 899 Int_t rmflg = 0;
aacedc3e 900 Double_t wy = 0.;
50d05d7b 901 if(clusterI->Anodes() != 0.) {
aacedc3e 902 wy = ((Double_t) clusterI->Samples())/clusterI->Anodes();
50d05d7b 903 } // end if
904 Int_t amp = (Int_t) clusterI->PeakAmpl();
905 Int_t cha = (Int_t) clusterI->Q();
906 if(amp < fMinPeak) rmflg = 1;
907 if(cha < fMinCharge) rmflg = 1;
908 if(wy < fMinNCells) rmflg = 1;
909 //if(wy > fMaxNCells) rmflg = 1;
aacedc3e 910 if(rmflg) Clusters()->RemoveAt(i);
42da2935 911 } // I clusters
aacedc3e 912 Clusters()->Compress();
42da2935 913 return;
b0f5e3fc 914}
42da2935 915
42da2935 916//______________________________________________________________________
917void AliITSClusterFinderSDD::GetRecPoints(){
918 // get rec points
04366a57 919
42da2935 920 // get number of clusters for this module
aacedc3e 921 Int_t nofClusters = NClusters();
42da2935 922 nofClusters -= fNclusters;
aacedc3e 923 const Double_t kconvGeV = 1.e-6; // GeV -> KeV
924 const Double_t kconv = 1.0e-4;
925 const Double_t kRMSx = 38.0*kconv; // microns->cm ITS TDR Table 1.3
926 const Double_t kRMSz = 28.0*kconv; // microns->cm ITS TDR Table 1.3
d86f531c 927 Int_t i;
42da2935 928 Int_t ix, iz, idx=-1;
929 AliITSdigitSDD *dig=0;
aacedc3e 930 Int_t ndigits=NDigits();
00a7cc50 931
932 Int_t lay,lad,det;
933 fDetTypeRec->GetITSgeom()->GetModuleId(fModule,lay,lad,det);
934 Int_t ind=(lad-1)*fDetTypeRec->GetITSgeom()->GetNdetectors(lay)+(det-1);
935 Int_t lyr=(lay-1);
936
937
42da2935 938 for(i=0; i<nofClusters; i++) {
aacedc3e 939 AliITSRawClusterSDD *clusterI = (AliITSRawClusterSDD*)Cluster(i);
50d05d7b 940 if(!clusterI) Error("SDD: GetRecPoints","i clusterI ",i,clusterI);
941 if(clusterI) idx=clusterI->PeakPos();
942 if(idx>ndigits) Error("SDD: GetRecPoints","idx ndigits",idx,ndigits);
943 // try peak neighbours - to be done
aacedc3e 944 if(idx&&idx<= ndigits) dig =(AliITSdigitSDD*)GetDigit(idx);
d86f531c 945 if(!dig) {
50d05d7b 946 // try cog
aacedc3e 947 GetSeg()->GetPadIxz(clusterI->X(),clusterI->Z(),ix,iz);
948 dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix-1);
50d05d7b 949 // if null try neighbours
aacedc3e 950 if (!dig) dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix);
951 if (!dig) dig = (AliITSdigitSDD*)Map()->GetHit(iz-1,ix+1);
50d05d7b 952 if (!dig) printf("SDD: cannot assign the track number!\n");
953 } // end if !dig
00a7cc50 954 AliITSRecPoint rnew(fDetTypeRec->GetITSgeom());
955 rnew.SetXZ(fModule,clusterI->X(),clusterI->Z());
50d05d7b 956 rnew.SetQ(clusterI->Q()); // in KeV - should be ADC
957 rnew.SetdEdX(kconvGeV*clusterI->Q());
00a7cc50 958 rnew.SetSigmaDetLocX2(kRMSx*kRMSx);
50d05d7b 959 rnew.SetSigmaZ2(kRMSz*kRMSz);
d86f531c 960
00a7cc50 961 if(dig) rnew.SetLabel(dig->GetTrack(0),0);
962 if(dig) rnew.SetLabel(dig->GetTrack(1),1);
963 if(dig) rnew.SetLabel(dig->GetTrack(2),2);
964 rnew.SetDetectorIndex(ind);
965 rnew.SetLayer(lyr);
7d62fb64 966 fDetTypeRec->AddRecPoint(rnew);
42da2935 967 } // I clusters
aacedc3e 968// Map()->ClearMap();
b0f5e3fc 969}
42da2935 970//______________________________________________________________________
971void AliITSClusterFinderSDD::FindRawClusters(Int_t mod){
972 // find raw clusters
50d05d7b 973
aacedc3e 974 SetModule(mod);
a1f090e0 975 Find1DClustersE();
b0f5e3fc 976 GroupClusters();
977 SelectClusters();
04366a57 978 ResolveClusters();
b0f5e3fc 979 GetRecPoints();
980}
42da2935 981//_______________________________________________________________________
d2f55a22 982void AliITSClusterFinderSDD::PrintStatus() const{
42da2935 983 // Print SDD cluster finder Parameters
984
985 cout << "**************************************************" << endl;
986 cout << " Silicon Drift Detector Cluster Finder Parameters " << endl;
987 cout << "**************************************************" << endl;
988 cout << "Number of Clusters: " << fNclusters << endl;
989 cout << "Anode Tolerance: " << fDAnode << endl;
990 cout << "Time Tolerance: " << fDTime << endl;
991 cout << "Time correction (electronics): " << fTimeCorr << endl;
992 cout << "Cut Amplitude (threshold): " << fCutAmplitude << endl;
993 cout << "Minimum Amplitude: " << fMinPeak << endl;
994 cout << "Minimum Charge: " << fMinCharge << endl;
995 cout << "Minimum number of cells/clusters: " << fMinNCells << endl;
996 cout << "Maximum number of cells/clusters: " << fMaxNCells << endl;
997 cout << "**************************************************" << endl;
a1f090e0 998}