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Cleaned up code and added some general Silicon diffusion functions and
[u/mrichter/AliRoot.git] / ITS / AliITSsimulationSPDdubna.cxx
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409f8c84 1#include <iostream.h>
2#include <TRandom.h>
3#include <TH1.h>
4#include <TMath.h>
5#include <TString.h>
6#include <TParticle.h>
7
8
9#include "AliRun.h"
10#include "AliITS.h"
11#include "AliITShit.h"
12#include "AliITSdigit.h"
13#include "AliITSmodule.h"
14#include "AliITSMapA2.h"
2cc6b29a 15#include "AliITSpList.h"
409f8c84 16#include "AliITSsimulationSPDdubna.h"
17#include "AliITSsegmentation.h"
18#include "AliITSresponse.h"
19
20
21
22
23ClassImp(AliITSsimulationSPDdubna)
24////////////////////////////////////////////////////////////////////////
25// Version: 0
26// Written by Boris Batyunya
27// December 20 1999
28//
29// AliITSsimulationSPDdubna is the simulation of SPDs
2cc6b29a 30//______________________________________________________________________
31
32
33AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(){
34 // constructor
35
36 fResponse = 0;
37 fSegmentation = 0;
38 fMapA2 = 0;
39 fpList = 0;
40 fModule = 0;
41 fEvent = 0;
42 fHis = 0;
43 fNoise = 0.;
44 fBaseline = 0.;
45 fNPixelsZ = 0;
46 fNPixelsX = 0;
409f8c84 47}
2cc6b29a 48//______________________________________________________________________
49AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(AliITSsegmentation *seg,
50 AliITSresponse *resp){
51 // standard constructor
409f8c84 52
2cc6b29a 53 fHis = 0;
54 fResponse = resp;
55 fSegmentation = seg;
56 fModule = 0;
57 fEvent = 0;
409f8c84 58
2cc6b29a 59 fNPixelsZ=fSegmentation->Npz();
60 fNPixelsX=fSegmentation->Npx();
409f8c84 61
2cc6b29a 62 fResponse->GetNoiseParam(fNoise,fBaseline);
409f8c84 63
2cc6b29a 64 fMapA2 = new AliITSMapA2(fSegmentation);
409f8c84 65
2cc6b29a 66 fpList = new AliITSpList(fNPixelsZ+1,fNPixelsX+1);
409f8c84 67
2cc6b29a 68}
69//______________________________________________________________________
70AliITSsimulationSPDdubna::~AliITSsimulationSPDdubna(){
71 // destructor
409f8c84 72
2cc6b29a 73 delete fMapA2;
409f8c84 74
2cc6b29a 75 if (fHis) {
76 fHis->Delete();
77 delete fHis;
78 } // end if fHis
409f8c84 79}
2cc6b29a 80//______________________________________________________________________
81AliITSsimulationSPDdubna::AliITSsimulationSPDdubna(const
82 AliITSsimulationSPDdubna
83 &source){
84 // Copy Constructor
85 if(&source == this) return;
86 this->fMapA2 = source.fMapA2;
87 this->fNoise = source.fNoise;
88 this->fBaseline = source.fBaseline;
89 this->fNPixelsX = source.fNPixelsX;
90 this->fNPixelsZ = source.fNPixelsZ;
91 this->fHis = source.fHis;
92 return;
93}
94//______________________________________________________________________
95AliITSsimulationSPDdubna& AliITSsimulationSPDdubna::operator=(const
96 AliITSsimulationSPDdubna &source){
97 // Assignment operator
98 if(&source == this) return *this;
99 this->fMapA2 = source.fMapA2;
100 this->fNoise = source.fNoise;
101 this->fBaseline = source.fBaseline;
102 this->fNPixelsX = source.fNPixelsX;
103 this->fNPixelsZ = source.fNPixelsZ;
104 this->fHis = source.fHis;
105 return *this;
106}
107//______________________________________________________________________
108void AliITSsimulationSPDdubna::InitSimulationModule(Int_t module, Int_t event){
109 // This function creates maps to build the list of tracks for each
110 // summable digit.
111 //
112 // Inputs:
113 // Int_t module // Module number to be simulated
114 // Int_t event // Event number to be simulated
115 //
116 // Outputs:
117 // none
118 //
119 // Returns:
120 // none
409f8c84 121
2cc6b29a 122 fModule = module;
123 fEvent = event;
124 fMapA2->ClearMap();
125 fpList->ClearMap();
126}
127//_____________________________________________________________________
128void AliITSsimulationSPDdubna::SDigitiseModule(AliITSmodule *mod, Int_t mask,
129 Int_t event){
130 // This function begins the work of creating S-Digits
131 //
132 // Inputs:
133 // AliITSmodule *mod // module
134 // Int_t mask // mask to be applied to the module
135 //
136 // Outputs:
137 // none
138 //
139 // Return:
140 // test // test returns kTRUE if the module contained hits
141 // // test returns kFALSE if it did not contain hits
409f8c84 142
2cc6b29a 143 Int_t module = 0;
409f8c84 144
2cc6b29a 145 if(!(mod->GetNhits())) return;// if module has no hits don't create Sdigits
146 fModule = mod->GetIndex();
147 HitToSDigit(mod, module, mask, fpList);
148 WriteSDigits(fpList);
149 fMapA2->ClearMap();
150 fpList->ClearMap();
409f8c84 151}
2cc6b29a 152//______________________________________________________________________
153void AliITSsimulationSPDdubna::WriteSDigits(AliITSpList *pList){
154 // This function adds each S-Digit to pList
155 //
156 // Inputs:
157 // AliITSpList *pList
158 //
159 // Outputs:
160 // none
161 //
162 // Return:
163 // none
7d50ea21 164 Int_t ix, nix, iz, niz;
2cc6b29a 165 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
166
7d50ea21 167 pList->GetMaxMapIndex(niz, nix);
168 for(iz=0; iz<niz; iz++)for(ix=0; ix<nix; ix++){
169 if(pList->GetSignalOnly(iz,ix)>0.0){
170 aliITS->AddSumDigit(*(pList->GetpListItem(iz,ix)));
2cc6b29a 171 } // end if pList
7d50ea21 172 } // end for iz,ix
2cc6b29a 173 return;
174}
175//______________________________________________________________________
176void AliITSsimulationSPDdubna::FinishSDigitiseModule(){
177 // This function calls SDigitsToDigits which creates Digits from SDigits
178 //
179 // Inputs:
180 // none
181 //
182 // Outputs:
183 // none
184 // Return
185 // none
409f8c84 186
2cc6b29a 187 SDigitsToDigits(fModule, fpList);
188 return;
189}
190//______________________________________________________________________
191void AliITSsimulationSPDdubna::SDigitsToDigits(Int_t module,
192 AliITSpList *pList){
193 // This function adds electronic noise to the S-Digits and then adds them
194 // to a new pList
195 //
196 // Inputs:
197 // Int_t module // module number
198 // AliITSpList *pList // pList
199 //
200 // Outputs:
201 // pList is passed along to the functions ChargeToSignal and GetList
202 //
203 // Return:
204 // none
409f8c84 205
2cc6b29a 206 fModule = module;
207 ChargeToSignal(pList); // Charge To Signal both adds noise and
208 fMapA2->ClearMap();
209 pList->ClearMap();
409f8c84 210}
2cc6b29a 211//______________________________________________________________________
212void AliITSsimulationSPDdubna::DigitiseModule(AliITSmodule *mod, Int_t module,
213 Int_t dummy){
214 // This function creates Digits straight from the hits and then adds
215 // electronic noise to the digits before adding them to pList
216 //
217 // Inputs:
218 // AliITSmodule *mod // module
219 // Int_t module // module number Dummy.
220 // Int_t dummy
221 //
222 // Outputs:
223 // Each of the input variables is passed along to HitToSDigit
224 //
225 // Return:
226 // none
409f8c84 227
2cc6b29a 228 fModule = mod->GetIndex(); //This calls the module for HitToSDigit
229 HitToSDigit(mod,fModule, dummy, fpList);
230 ChargeToSignal(fpList);
231 fMapA2->ClearMap();
232 fpList->ClearMap();
233}
234//______________________________________________________________________
7d50ea21 235void AliITSsimulationSPDdubna::UpdateMapSignal(Int_t iz, Int_t ix, Int_t trk,
2cc6b29a 236 Int_t ht, Int_t module,
237 Double_t signal,
238 AliITSpList *pList){
239 // This function adds a signal to the pList from the pList class
240 //
241 // Inputs:
7d50ea21 242 // Int_t iz // row number
243 // Int_t ix // column number
2cc6b29a 244 // Int_t trk // track number
245 // Int_t ht // hit number
246 // Double_t signal // signal strength
247 // AliITSpList *pList // pList
248 //
249 // Outputs:
250 // All of the inputs are passed to AliITSpList::AddSignal
251 // Int_t ix // row number
252 // Int_t iz // column number
253 // Double_t sig // signal strength
254 // // These three variables are defined to preserve the
255 // // assignments used in the function AliITSMapA2::AddSignal
256 //
257 // Return:
258 // none
2cc6b29a 259
7d50ea21 260 fMapA2->AddSignal(iz, ix, signal);
261 pList->AddSignal(iz,ix, trk, ht, fModule, signal);
2cc6b29a 262}
263//______________________________________________________________________
7d50ea21 264void AliITSsimulationSPDdubna::UpdateMapNoise(Int_t iz,
265 Int_t ix, Int_t fModule,
2cc6b29a 266 Double_t sig, Float_t noise,
267 AliITSpList *pList){
268 // This function adds noise to data in the MapA2 as well as the pList
269 //
270 // Inputs:
7d50ea21 271 // Int_t iz // row number
272 // Int_t ix // column number
2cc6b29a 273 // Int_t mod // module number
274 // Double_t sig // signal strength
275 // Double_t noise // electronic noise generated by ChargeToSignal
276 // AliITSpList *pList // pList
277 //
278 // Outputs:
279 // All of the inputs are passed to AliITSMapA2::AddSignal or
280 // AliITSpList::AddNoise
281 //
282 // Return:
283 // none
409f8c84 284
2cc6b29a 285 fMapA2->AddSignal(iz, ix, sig);
7d50ea21 286 pList->AddNoise(iz,ix, fModule, noise);
2cc6b29a 287}
288//______________________________________________________________________
289void AliITSsimulationSPDdubna::HitToDigit(AliITSmodule *mod, Int_t module,
290 Int_t dummy){
291 DigitiseModule(mod, module, dummy);
292}
293//______________________________________________________________________
294void AliITSsimulationSPDdubna::HitToSDigit(AliITSmodule *mod, Int_t module,
295 Int_t dummy, AliITSpList *pList){
296 // digitize module
409f8c84 297 const Float_t kEnToEl = 2.778e+8; // GeV->charge in electrons
298 // for 3.6 eV/pair
299 const Float_t kconv = 10000.; // cm -> microns
300
301 Float_t spdLength = fSegmentation->Dz();
302 Float_t spdWidth = fSegmentation->Dx();
338e4f06 303 Float_t spdThickness = fSegmentation->Dy();
409f8c84 304 Float_t difCoef, dum;
305 fResponse->DiffCoeff(difCoef,dum);
338e4f06 306 if(spdThickness > 290) difCoef = 0.00613;
409f8c84 307
308 Float_t zPix0 = 1e+6;
309 Float_t xPix0 = 1e+6;
310 Float_t yPrev = 1e+6;
311
312 Float_t zPitch = fSegmentation->Dpz(0);
313 Float_t xPitch = fSegmentation->Dpx(0);
314
315 TObjArray *fHits = mod->GetHits();
2cc6b29a 316 module = mod->GetIndex();
409f8c84 317 Int_t nhits = fHits->GetEntriesFast();
318 if (!nhits) return;
319
2cc6b29a 320 cout<<"len,wid,thickness,nx,nz,pitchx,pitchz,difcoef ="<<spdLength<<","
321 <<spdWidth<<","<<spdThickness<<","<<fNPixelsX<<","<<fNPixelsZ<<","
322 <<xPitch<<","<<zPitch<<","<<difCoef<<endl;
323 // Array of pointers to the label-signal list
409f8c84 324 Int_t indexRange[4] = {0,0,0,0};
325
326 // Fill detector maps with GEANT hits
327 // loop over hits in the module
328 static Bool_t first;
329 Int_t lasttrack=-2;
330 Int_t hit, iZi, jz, jx;
338e4f06 331 Int_t idhit=-1; //!
332 cout<<"SPDdubna: module,nhits ="<<module<<","<<nhits<<endl;
409f8c84 333 for (hit=0;hit<nhits;hit++) {
334 AliITShit *iHit = (AliITShit*) fHits->At(hit);
338e4f06 335 //Int_t layer = iHit->GetLayer();
336 Float_t yPix0 = -spdThickness/2;
337
338 // work with the idtrack=entry number in the TreeH
339 //Int_t idhit,idtrack; //!
340 //mod->GetHitTrackAndHitIndex(hit,idtrack,idhit); //!
341 //Int_t idtrack=mod->GetHitTrackIndex(hit);
342 // or store straight away the particle position in the array
343 // of particles :
409f8c84 344 if(iHit->StatusEntering()) idhit=hit;
345 Int_t itrack = iHit->GetTrack();
346 Int_t dray = 0;
347
348 if (lasttrack != itrack || hit==(nhits-1)) first = kTRUE;
349
338e4f06 350 //Int_t parent = iHit->GetParticle()->GetFirstMother();
409f8c84 351 Int_t partcode = iHit->GetParticle()->GetPdgCode();
352
2cc6b29a 353 // partcode (pdgCode): 11 - e-, 13 - mu-, 22 - gamma, 111 - pi0,
354 // 211 - pi+, 310 - K0s, 321 - K+, 2112 - n, 2212 - p, 3122 - lambda
409f8c84 355
356 Float_t pmod = iHit->GetParticle()->P(); // total momentum at the
357 // vertex
358 pmod *= 1000;
359
409f8c84 360 if(partcode == 11 && pmod < 6) dray = 1; // delta ray is e-
361 // at p < 6 MeV/c
362
409f8c84 363 // Get hit z and x(r*phi) cordinates for each module (detector)
364 // in local system.
365
366 Float_t zPix = kconv*iHit->GetZL();
367 Float_t xPix = kconv*iHit->GetXL();
368 Float_t yPix = kconv*iHit->GetYL();
369
370 // Get track status
371 Int_t status = iHit->GetTrackStatus();
409f8c84 372
373 // Check boundaries
374 if(zPix > spdLength/2) {
2cc6b29a 375 //cout<<"!!! SPD: z outside ="<<zPix<<endl;
376 zPix = spdLength/2 - 10;
409f8c84 377 }
378 if(zPix < 0 && zPix < -spdLength/2) {
2cc6b29a 379 //cout<<"!!! SPD: z outside ="<<zPix<<endl;
380 zPix = -spdLength/2 + 10;
409f8c84 381 }
382 if(xPix > spdWidth/2) {
2cc6b29a 383 //cout<<"!!! SPD: x outside ="<<xPix<<endl;
384 xPix = spdWidth/2 - 10;
409f8c84 385 }
386 if(xPix < 0 && xPix < -spdWidth/2) {
2cc6b29a 387 //cout<<"!!! SPD: x outside ="<<xPix<<endl;
388 xPix = -spdWidth/2 + 10;
409f8c84 389 }
390 Int_t trdown = 0;
391
392 // enter Si or after event in Si
393 if (status == 66 ) {
2cc6b29a 394 zPix0 = zPix;
395 xPix0 = xPix;
396 yPrev = yPix;
397 } // end if status == 66
409f8c84 398
399 Float_t depEnergy = iHit->GetIonization();
400 // skip if the input point to Si
401
402 if(depEnergy <= 0.) continue;
403
404 // if track returns to the opposite direction:
405 if (yPix < yPrev) {
406 trdown = 1;
2cc6b29a 407 } // end if yPix < yPrev
409f8c84 408
409 // take into account the holes diffusion inside the Silicon
410 // the straight line between the entrance and exit points in Si is
411 // divided into the several steps; the diffusion is considered
412 // for each end point of step and charge
413 // is distributed between the pixels through the diffusion.
409f8c84 414
415 // ---------- the diffusion in Z (beam) direction -------
409f8c84 416 Float_t charge = depEnergy*kEnToEl; // charge in e-
417 Float_t drPath = 0.;
418 Float_t tang = 0.;
419 Float_t sigmaDif = 0.;
420 Float_t zdif = zPix - zPix0;
421 Float_t xdif = xPix - xPix0;
422 Float_t ydif = TMath::Abs(yPix - yPrev);
423 Float_t ydif0 = TMath::Abs(yPrev - yPix0);
424
425 if(ydif < 1) continue; // ydif is not zero
426
427 Float_t projDif = sqrt(xdif*xdif + zdif*zdif);
428
429 Int_t ndZ = (Int_t)TMath::Abs(zdif/zPitch) + 1;
430 Int_t ndX = (Int_t)TMath::Abs(xdif/xPitch) + 1;
431
432 // number of the steps along the track:
433 Int_t nsteps = ndZ;
434 if(ndX > ndZ) nsteps = ndX;
338e4f06 435 if(nsteps < 20) nsteps = 20; // minimum number of the steps
409f8c84 436
437 if (projDif < 5 ) {
2cc6b29a 438 drPath = (yPix-yPix0)*1.e-4;
439 drPath = TMath::Abs(drPath); // drift path in cm
440 sigmaDif = difCoef*sqrt(drPath); // sigma diffusion in cm
441 sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
442 nsteps = 1;
443 } // end if projDif < 5
409f8c84 444
445 if(projDif > 5) tang = ydif/projDif;
446 Float_t dCharge = charge/nsteps; // charge in e- for one step
447 Float_t dZ = zdif/nsteps;
448 Float_t dX = xdif/nsteps;
449
2cc6b29a 450 for (iZi = 1; iZi <= nsteps;iZi++) {
451 Float_t dZn = iZi*dZ;
409f8c84 452 Float_t dXn = iZi*dX;
453 Float_t zPixn = zPix0 + dZn;
454 Float_t xPixn = xPix0 + dXn;
455
456 if(projDif >= 5) {
2cc6b29a 457 Float_t dProjn = sqrt(dZn*dZn+dXn*dXn);
458 drPath = dProjn*tang*1.e-4; // drift path for iZi+1 step in cm
459 if(trdown == 0) {
460 drPath = TMath::Abs(drPath) + ydif0*1.e-4;
461 }// end if trdow ==0
462 if(trdown == 1) {
463 drPath = ydif0*1.e-4 - TMath::Abs(drPath);
464 drPath = TMath::Abs(drPath);
465 } // end if trdown == 1
466 sigmaDif = difCoef*sqrt(drPath);
467 sigmaDif = sigmaDif*kconv; // sigma diffusion in microns
468 } // end if projdif >= 5
409f8c84 469
470 zPixn = (zPixn + spdLength/2.);
471 xPixn = (xPixn + spdWidth/2.);
472 Int_t nZpix, nXpix;
473 fSegmentation->GetPadIxz(xPixn,zPixn,nXpix,nZpix);
474 zPitch = fSegmentation->Dpz(nZpix);
475 fSegmentation->GetPadTxz(xPixn,zPixn);
476 // set the window for the integration
477 Int_t jzmin = 1;
478 Int_t jzmax = 3;
479 if(nZpix == 1) jzmin =2;
480 if(nZpix == fNPixelsZ) jzmax = 2;
481
482 Int_t jxmin = 1;
483 Int_t jxmax = 3;
484 if(nXpix == 1) jxmin =2;
485 if(nXpix == fNPixelsX) jxmax = 2;
486
487 Float_t zpix = nZpix;
488 Float_t dZright = zPitch*(zpix - zPixn);
489 Float_t dZleft = zPitch - dZright;
490
491 Float_t xpix = nXpix;
492 Float_t dXright = xPitch*(xpix - xPixn);
493 Float_t dXleft = xPitch - dXright;
494
495 Float_t dZprev = 0.;
496 Float_t dZnext = 0.;
497 Float_t dXprev = 0.;
498 Float_t dXnext = 0.;
499
500 for(jz=jzmin; jz <=jzmax; jz++) {
501 if(jz == 1) {
2cc6b29a 502 dZprev = -zPitch - dZleft;
503 dZnext = -dZleft;
504 } else if(jz == 2) {
505 dZprev = -dZleft;
506 dZnext = dZright;
507 } else if(jz == 3) {
508 dZprev = dZright;
509 dZnext = dZright + zPitch;
510 } // end if jz
409f8c84 511 // kz changes from 1 to the fNofPixels(270)
512 Int_t kz = nZpix + jz -2;
513
514 Float_t zArg1 = dZprev/sigmaDif;
515 Float_t zArg2 = dZnext/sigmaDif;
516 Float_t zProb1 = TMath::Erfc(zArg1);
517 Float_t zProb2 = TMath::Erfc(zArg2);
518 Float_t dZCharge =0.5*(zProb1-zProb2)*dCharge;
519
520
521 // ----------- holes diffusion in X(r*phi) direction --------
522
523 if(dZCharge > 1.) {
2cc6b29a 524 for(jx=jxmin; jx <=jxmax; jx++) {
525 if(jx == 1) {
526 dXprev = -xPitch - dXleft;
527 dXnext = -dXleft;
528 } else if(jx == 2) {
529 dXprev = -dXleft;
530 dXnext = dXright;
531 } else if(jx == 3) {
532 dXprev = dXright;
533 dXnext = dXright + xPitch;
534 } // end if jx
535 Int_t kx = nXpix + jx -2;
536 Float_t xArg1 = dXprev/sigmaDif;
537 Float_t xArg2 = dXnext/sigmaDif;
538 Float_t xProb1 = TMath::Erfc(xArg1);
539 Float_t xProb2 = TMath::Erfc(xArg2);
540 Float_t dXCharge =0.5*(xProb1-xProb2)*dZCharge;
541
542 if(dXCharge > 1.) {
543 Int_t index = kz-1;
544 if (first) {
545 indexRange[0]=indexRange[1]=index;
546 indexRange[2]=indexRange[3]=kx-1;
547 first=kFALSE;
548 } // end if first
549 indexRange[0]=TMath::Min(indexRange[0],kz-1);
550 indexRange[1]=TMath::Max(indexRange[1],kz-1);
551 indexRange[2]=TMath::Min(indexRange[2],kx-1);
552 indexRange[3]=TMath::Max(indexRange[3],kx-1);
553
554 // build the list of digits for this module
555 Double_t signal=fMapA2->GetSignal(index,kx-1);
556 signal+=dXCharge;
557 fMapA2->SetHit(index,kx-1,(double)signal);
558
559 // The calling sequence for UpdateMapSignal was
560 // moved into the (dx > 1 e-) loop because it
561 // needs to call signal which is defined inside
562 // this loop
2cc6b29a 563 fModule = module;//Defined because functions
564 // called by UpdateMapSignal
565 // expect module to be an
566 // integer
7d50ea21 567 UpdateMapSignal(kz-1,kx-1,
568 mod->GetHitTrackIndex(hit),
569 hit,fModule,signal,pList);
2cc6b29a 570 } // dXCharge > 1 e-
571 } // jx loop
409f8c84 572 } // dZCharge > 1 e-
573 } // jz loop
574 } // iZi loop
409f8c84 575 if (status == 65) { // the step is inside of Si
2cc6b29a 576 zPix0 = zPix;
577 xPix0 = xPix;
578 } // end if status == 65
579 yPrev = yPix;
409f8c84 580 } // hit loop inside the module
409f8c84 581}
2cc6b29a 582//______________________________________________________________________
583void AliITSsimulationSPDdubna::ChargeToSignal(AliITSpList *pList){
584 // add noise and electronics, perform the zero suppression and add the
585 // digit to the list
586
587 AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
588
589 Float_t threshold = (float)fResponse->MinVal();
590
591 Int_t digits[3], tracks[3], hits[3], gi, j1;
592 Float_t charges[3];
593 Float_t electronics;
594 Float_t signal;
595 Float_t phys;
596 Double_t sig;
7d50ea21 597// Int_t module = 0;
2cc6b29a 598 for(Int_t iz=0; iz<fNPixelsZ; iz++){
599 for(Int_t ix=0; ix<fNPixelsX; ix++){
600 electronics = fBaseline + fNoise*gRandom->Gaus();
7d50ea21 601 signal = (float)pList->GetSignalOnly(iz,ix);
2cc6b29a 602 sig = Double_t (signal); // sig will be passed along to
603 // UpdateMapNoise this is necessary so
604 // that a signal without electronic
605 // noise is passed along
606 signal += electronics;
607 gi =iz*fNPixelsX+ix; // global index
608 if (signal > threshold) {
609 digits[0]=iz;
610 digits[1]=ix;
611 digits[2]=1;
612 for(j1=0;j1<3;j1++){
7d50ea21 613 if (pList->GetTrack(iz,ix,gi)) {
2cc6b29a 614 //b.b. tracks[j1]=-3;
7d50ea21 615 tracks[j1] = (Int_t)(pList->GetTrack(iz,ix,j1)+j1);
616 hits[j1] = (Int_t)(pList->GetHit(iz,ix,j1)+j1+6);
2cc6b29a 617 }else {
618 tracks[j1]=-2; //noise
619 hits[j1] = -1;
620 } // end if pList
621 charges[j1] = 0;
622 } // end for j1
623
624 if(tracks[0] == tracks[1] && tracks[0] == tracks[2]) {
625 tracks[1] = -3;
626 hits[1] = -1;
627 tracks[2] = -3;
628 hits[2] = -1;
629 } else if(tracks[0] == tracks[1] && tracks[0] != tracks[2]) {
630 tracks[1] = -3;
631 hits[1] = -1;
632 } else if(tracks[0] == tracks[2] && tracks[0] != tracks[1]) {
633 tracks[2] = -3;
634 hits[2] = -1;
635 } else if(tracks[1] == tracks[2] && tracks[0] != tracks[1]) {
636 tracks[2] = -3;
637 hits[2] = -1;
638 } // end if
639
640 phys = 0;
641
7d50ea21 642 UpdateMapNoise(iz,ix,fModule,sig,electronics,pList);
2cc6b29a 643 aliITS->AddSimDigit(0, phys, digits, tracks, hits, charges);
644 } //
645 } //
646 } //
409f8c84 647}
2cc6b29a 648//______________________________________________________________________
649void AliITSsimulationSPDdubna::CreateHistograms(){
650 // create 1D histograms for tests
651
652 printf("SPD - create histograms\n");
653
654 fHis=new TObjArray(fNPixelsZ);
655 TString spdName("spd_");
656 for (Int_t i=0;i<fNPixelsZ;i++) {
657 Char_t pixelz[4];
658 sprintf(pixelz,"%d",i+1);
659 spdName.Append(pixelz);
660 //PH (*fHis)[i] = new TH1F(spdName.Data(),"SPD maps",
661 //PH fNPixelsX,0.,(Float_t) fNPixelsX);
662 fHis->AddAt(new TH1F(spdName.Data(),"SPD maps",
663 fNPixelsX,0.,(Float_t) fNPixelsX), i);
664 } // end for i
409f8c84 665}
2cc6b29a 666//______________________________________________________________________
667void AliITSsimulationSPDdubna::ResetHistograms(){
409f8c84 668 //
669 // Reset histograms for this detector
670 //
671
672 for ( int i=0;i<fNPixelsZ;i++ ) {
2cc6b29a 673 //PH if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
2682e810 674 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
2cc6b29a 675 } // end for i
409f8c84 676}