1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 #include <Riostream.h>
23 #include <TParticle.h>
27 #include "AliITShit.h"
28 #include "AliITSdigitSPD.h"
29 #include "AliITSmodule.h"
30 #include "AliITSMapA2.h"
31 #include "AliITSpList.h"
32 #include "AliITSsimulationSPD.h"
33 #include "AliITSsegmentation.h"
34 #include "AliITSresponse.h"
35 #include "AliITSsegmentationSPD.h"
36 #include "AliITSresponseSPD.h"
40 ClassImp(AliITSsimulationSPD)
41 ////////////////////////////////////////////////////////////////////////
43 // Written by Rocco Caliandro
44 // from a model developed with T. Virgili and R.A. Fini
47 // AliITSsimulationSPD is the simulation of SPDs
49 //______________________________________________________________________
50 AliITSsimulationSPD::AliITSsimulationSPD() : AliITSsimulation(),
53 // Default constructor
59 // A default constructed AliITSsimulationSPD class.
61 //______________________________________________________________________
62 AliITSsimulationSPD::AliITSsimulationSPD(AliITSsegmentation *seg,
64 AliITSsimulation(seg,res),
67 // Standard constructor
69 // AliITSsegmentation *seg Segmentation class to be used
70 // AliITSresonse *res Response class to be used
74 // A standard constructed AliITSsimulationSPD class.
78 //______________________________________________________________________
79 void AliITSsimulationSPD::Init() {
80 // Initilizes the variables of AliITSsimulation SPD.
89 if(fMapA2) delete fMapA2;
90 fMapA2 = new AliITSMapA2(fSegmentation);
91 if(fpList) delete fpList;
92 fpList = new AliITSpList(GetNPixelsZ()+1,GetNPixelsX()+1);
94 //______________________________________________________________________
95 void AliITSsimulationSPD::Init(AliITSsegmentationSPD *seg,
96 AliITSresponseSPD *resp) {
97 // Initilizes the variables of AliITSsimulation SPD.
99 // AliITSsegmentationSPD replacement segmentation class to be used
100 // aliITSresponseSPD replacement response class to be used
111 if(fResponse) delete fResponse;
113 if(fSegmentation) delete fSegmentation;
115 if(fMapA2) delete fMapA2;
116 fMapA2 = new AliITSMapA2(fSegmentation);
117 if(fpList) delete fpList;
118 fpList = new AliITSpList(GetNPixelsZ()+1,GetNPixelsX()+1);
120 //______________________________________________________________________
121 AliITSsimulationSPD::~AliITSsimulationSPD() {
130 if(fMapA2) delete fMapA2;
137 //______________________________________________________________________
138 AliITSsimulationSPD::AliITSsimulationSPD(const AliITSsimulationSPD &source) :
139 AliITSsimulation(source){
146 // A new AliITSsimulationSPD class with the same parameters as source.
148 if(&source == this) return;
150 this->fMapA2 = source.fMapA2;
151 this->fHis = source.fHis;
154 //______________________________________________________________________
155 AliITSsimulationSPD& AliITSsimulationSPD::operator=(const AliITSsimulationSPD
157 // Assignment operator
163 // A new AliITSsimulationSPD class with the same parameters as source.
165 if(&source == this) return *this;
167 this->fMapA2 = source.fMapA2;
168 this->fHis = source.fHis;
171 //______________________________________________________________________
172 void AliITSsimulationSPD::InitSimulationModule(Int_t module,Int_t event){
173 // Creates maps to build the list of tracks for each sumable digit
175 // Int_t module // Module number to be simulated
176 // Int_t event // Event number to be simulated
187 //______________________________________________________________________
188 void AliITSsimulationSPD::FinishSDigitiseModule(){
189 // Does the Sdigits to Digits work
197 SDigitsToDigits(fModule,fpList);
199 //______________________________________________________________________
200 void AliITSsimulationSPD::SDigitiseModule(AliITSmodule *mod, Int_t dummy0,
202 // Sum digitize module
204 // AliITSmodule *mod The module to be SDgitized
205 // Int_t dummy0 Not used kept for general compatibility
206 // Int_t dummy1 Not used kept for general compatibility
211 if (!(mod->GetNhits())) return; // if module has no hits then no Sdigits.
212 Int_t number = 10000;
213 Int_t *frowpixel = new Int_t[number];
214 Int_t *fcolpixel = new Int_t[number];
215 Double_t *fenepixel = new Double_t[number];
217 dummy0 = dummy1; // remove unsued variable warning.
218 fModule = mod->GetIndex();
220 // Array of pointers to store the track index of the digits
221 // leave +1, otherwise pList crashes when col=256, row=192
223 HitsToAnalogDigits(mod,frowpixel,fcolpixel,fenepixel,fpList);
225 WriteSDigits(fpList);
234 //______________________________________________________________________
235 void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod, Int_t,Int_t) {
236 // digitize module. Also need to digitize modules with only noise.
238 // AliITSmodule *mod The module to be SDgitized
244 Int_t number = 10000;
245 Int_t *frowpixel = new Int_t[number];
246 Int_t *fcolpixel = new Int_t[number];
247 Double_t *fenepixel = new Double_t[number];
249 // Array of pointers to store the track index of the digits
250 // leave +1, otherwise pList crashes when col=256, row=192
251 fModule = mod->GetIndex();
253 SetFluctuations(fpList,fModule);
255 HitsToAnalogDigits(mod,frowpixel,fcolpixel,fenepixel,fpList);
257 // apply mask to SPD module
260 CreateDigit(fModule,fpList);
269 //______________________________________________________________________
270 void AliITSsimulationSPD::SDigitsToDigits(Int_t module,AliITSpList *pList) {
271 // sum digits to Digits.
273 // AliITSmodule *mod The module to be SDgitized
274 // AliITSpList *pList the array of SDigits
276 // AliITSpList *pList the array of SDigits
281 cout << "Entering AliITSsimulatinSPD::SDigitsToDigits for module=";
282 cout << module << endl;
287 SetFluctuations(pList,module);
289 fMapA2->ClearMap(); // since noise is in pList aready. Zero Map so that
290 // noise is not doubled when calling FillMapFrompList.
292 FillMapFrompList(pList);
294 // apply mask to SPD module
297 CreateDigit(module,pList);
302 //______________________________________________________________________
303 void AliITSsimulationSPD::UpdateMapSignal(Int_t row,Int_t col,Int_t trk,
304 Int_t hit,Int_t mod,Double_t ene,
305 AliITSpList *pList) {
306 // updates the Map of signal, adding the energy (ene) released by
309 // Int_t row pixel row number
310 // Int_t col pixel column number
311 // Int_t trk track number which contributed
312 // Int_t hit hit number which contributed
313 // Int_t mod module number
314 // Double_t ene the energy associated with this contribution
315 // AliITSpList *pList the array of SDigits
317 // AliITSpList *pList the array of SDigits
321 fMapA2->AddSignal(row,col,ene);
322 pList->AddSignal(row,col,trk,hit,mod,ene);
324 //______________________________________________________________________
325 void AliITSsimulationSPD::UpdateMapNoise(Int_t row,Int_t col,Int_t mod,
326 Double_t ene,AliITSpList *pList) {
327 // updates the Map of noise, adding the energy (ene) give my noise
329 // Int_t row pixel row number
330 // Int_t col pixel column number
331 // Int_t mod module number
332 // Double_t ene the energy associated with this contribution
333 // AliITSpList *pList the array of SDigits
335 // AliITSpList *pList the array of SDigits
339 fMapA2->AddSignal(row,col,ene);
340 pList->AddNoise(row,col,mod,ene);
342 //______________________________________________________________________
343 void AliITSsimulationSPD::HitsToAnalogDigits(AliITSmodule *mod,
344 Int_t *frowpixel,Int_t *fcolpixel,
346 AliITSpList *pList) {
347 // Loops over all hits to produce Analog/floting point digits. This
348 // is also the first task in producing standard digits.
350 // AliITSmodule *mod module class
351 // Int_t *frowpixel array of pixel rows
352 // Int_t *fcolpixel array of pixel columns
353 // Double_t *fenepiexel array of pixel energies
354 // AliITSpList *pList the array of SDigits
356 // AliITSpList *pList the array of SDigits
360 // loop over hits in the module
361 Int_t hitpos,nhits = mod->GetNhits();
362 for (hitpos=0;hitpos<nhits;hitpos++) {
363 HitToDigit(mod,hitpos,frowpixel,fcolpixel,fenepixel,pList);
364 }// end loop over digits
366 //______________________________________________________________________
367 void AliITSsimulationSPD::HitToDigit(AliITSmodule *mod,Int_t hitpos,
368 Int_t *frowpixel,Int_t *fcolpixel,
369 Double_t *fenepixel,AliITSpList *pList) {
370 // Steering function to determine the digits associated to a given
372 // The digits are created by charge sharing (ChargeSharing) and by
373 // capacitive coupling (SetCoupling). At all the created digits is
374 // associated the track number of the hit (ntrack)
376 // AliITSmodule *mod module class
377 // Int_t hitpos hit index value
378 // Int_t *frowpixel array of pixel rows
379 // Int_t *fcolpixel array of pixel columns
380 // Double_t *fenepiexel array of pixel energies
381 // AliITSpList *pList the array of SDigits
383 // AliITSpList *pList the array of SDigits
386 Double_t x1l=0.0,y1l=0.0,z1l=0.0,x2l=0.0,y2l=0.0,z2l=0.0;
387 Int_t r1,r2,c1,c2,row,col,npixel = 0;
389 Double_t ene=0.0,etot=0.0;
390 const Float_t kconv = 10000.; // cm -> microns
391 const Float_t kconv1= 0.277e9; // GeV -> electrons equivalent
393 if(!(mod->LineSegmentL(hitpos,x1l,x2l,y1l,y2l,z1l,z2l,etot,ntrack)))return;
395 x2l += x1l; y2l += y1l; z2l += z1l; // Convert to ending coordinate.
396 // positions shifted and converted in microns
397 x1l = x1l*kconv + fSegmentation->Dx()/2.;
398 z1l = z1l*kconv + fSegmentation->Dz()/2.;
399 // positions shifted and converted in microns
400 x2l = x2l*kconv + fSegmentation->Dx()/2.;
401 z2l = z2l*kconv + fSegmentation->Dz()/2.;
402 etot *= kconv1; // convert from GeV to electrons equivalent.
403 Int_t module = mod->GetIndex();
405 // to account for the effective sensitive area
406 // introduced in geometry
407 if (z1l<0 || z1l>fSegmentation->Dz()) return;
408 if (z2l<0 || z2l>fSegmentation->Dz()) return;
409 if (x1l<0 || x1l>fSegmentation->Dx()) return;
410 if (x2l<0 || x2l>fSegmentation->Dx()) return;
412 //Get the col and row number starting from 1
413 // the x direction is not inverted for the second layer!!!
414 fSegmentation->GetPadIxz(x1l, z1l, c1, r1);
415 fSegmentation->GetPadIxz(x2l, z2l, c2, r2);
417 // to account for unexpected equal entrance and
419 if (x1l==x2l) x2l=x2l+x2l*0.1;
420 if (z1l==z2l) z2l=z2l+z2l*0.1;
422 if ((r1==r2) && (c1==c2)){
425 frowpixel[npixel-1] = r1;
426 fcolpixel[npixel-1] = c1;
427 fenepixel[npixel-1] = etot;
430 ChargeSharing(x1l,z1l,x2l,z2l,c1,r1,c2,r2,etot,
431 npixel,frowpixel,fcolpixel,fenepixel);
432 } // end if r1==r2 && c1==c2.
434 for (Int_t npix=0;npix<npixel;npix++){
435 row = frowpixel[npix];
436 col = fcolpixel[npix];
437 ene = fenepixel[npix];
438 UpdateMapSignal(row,col,ntrack,hitpos,module,ene,pList);
439 // Starting capacitive coupling effect
440 SetCoupling(row,col,ntrack,hitpos,module,pList);
443 //______________________________________________________________________
444 void AliITSsimulationSPD::ChargeSharing(Float_t x1l,Float_t z1l,Float_t x2l,
445 Float_t z2l,Int_t c1,Int_t r1,Int_t c2,
446 Int_t r2,Float_t etot,
447 Int_t &npixel,Int_t *frowpixel,
448 Int_t *fcolpixel,Double_t *fenepixel){
449 // Take into account the geometrical charge sharing when the track
450 // crosses more than one pixel.
462 // Int_t *frowpixel array of pixel rows
463 // Int_t *fcolpixel array of pixel columns
464 // Double_t *fenepiexel array of pixel energies
472 <img src="picts/ITS/barimodel_2.gif">
475 <font size=+2 color=red>
476 <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
482 Float_t xa,za,xb,zb,dx,dz,dtot,refr,refm,refc;
484 Float_t arefm, arefr, arefn, arefc, azb, az2l, axb, ax2l;
485 Int_t dirx,dirz,rb,cb;
486 Int_t flag,flagrow,flagcol;
496 dtot = TMath::Sqrt((dx*dx)+(dz*dz));
497 if (dtot==0.0) dtot = 0.01;
498 dirx = (Int_t) TMath::Sign((Float_t)1,dx);
499 dirz = (Int_t) TMath::Sign((Float_t)1,dz);
501 // calculate the x coordinate of the pixel in the next column
502 // and the z coordinate of the pixel in the next row
505 fSegmentation->GetPadCxz(c1, r1-1, xpos, zpos);
507 Float_t xsize = fSegmentation->Dpx(0);
508 Float_t zsize = fSegmentation->Dpz(r1-1);
510 if (dirx == 1) refr = xpos+xsize/2.;
511 else refr = xpos-xsize/2.;
513 if (dirz == 1) refn = zpos+zsize/2.;
514 else refn = zpos-zsize/2.;
520 // calculate the x coordinate of the intersection with the pixel
521 // in the next cell in row direction
523 refm = dx*((refn - z1l)/dz) + x1l;
525 refm = refr+dirx*xsize;
527 // calculate the z coordinate of the intersection with the pixel
528 // in the next cell in column direction
530 refc = dz*((refr - x1l)/dx) + z1l;
532 refc = refn+dirz*zsize;
539 if ((arefm < arefr) && (arefn < arefc)){
540 // the track goes in the pixel in the next cell in row direction
547 if (rb == r2) flagrow=1;
552 // shift to the pixel in the next cell in row direction
553 Float_t zsizeNext = fSegmentation->Dpz(rb-1);
554 //to account for cell at the borders of the detector
555 if(zsizeNext==0) zsizeNext = zsize;
556 refn += zsizeNext*dirz;
558 // the track goes in the pixel in the next cell in column direction
565 if (cb == c2) flagcol=1;
569 } // end ifaxb > ax2l
571 // shift to the pixel in the next cell in column direction
572 Float_t xsizeNext = fSegmentation->Dpx(cb-1);
573 //to account for cell at the borders of the detector
574 if(xsizeNext==0) xsizeNext = xsize;
575 refr += xsizeNext*dirx;
576 } // end if (arefm < arefr) && (arefn < arefc)
578 //calculate the energy lost in the crossed pixel
579 epar = TMath::Sqrt((xb-xa)*(xb-xa)+(zb-za)*(zb-za));
580 epar = etot*(epar/dtot);
582 //store row, column and energy lost in the crossed pixel
583 frowpixel[npixel] = r1;
584 fcolpixel[npixel] = c1;
585 fenepixel[npixel] = epar;
588 // the exit point of the track is reached
589 if (epar == 0) flag = 1;
590 if ((r1 == r2) && (c1 == c2)) flag = 1;
599 //______________________________________________________________________
600 void AliITSsimulationSPD::SetCoupling(Int_t row, Int_t col, Int_t ntrack,
601 Int_t idhit,Int_t module,
602 AliITSpList *pList) {
603 // Take into account the coupling between adiacent pixels.
604 // The parameters probcol and probrow are the probability of the
605 // signal in one pixel shared in the two adjacent pixels along
606 // the column and row direction, respectively.
608 // Int_t row pixel row number
609 // Int_t col pixel column number
610 // Int_t ntrack track number of track contributing to this signal
611 // Int_t idhit hit number of hit contributing to this signal
612 // Int_t module module number
613 // AliITSpList *pList the array of SDigits
615 // AliITSpList *pList the array of SDigits
621 <img src="picts/ITS/barimodel_3.gif">
624 <font size=+2 color=red>
625 <a href="mailto:tiziano.virgili@cern.ch"></a>.
631 Double_t pulse1,pulse2;
632 Double_t couplR=0.0,couplC=0.0;
635 GetCouplings(couplR,couplC);
638 pulse1 = fMapA2->GetSignal(row,col);
640 for (Int_t isign=-1;isign<=1;isign+=2){// loop in row direction
644 xr = gRandom->Rndm();
645 //if ((j1<0) || (j1>GetNPixelsZ()-1) || (pulse1<GetThreshold())){
646 if ((j1<0) || (j1>GetNPixelsZ()-1) || (xr>couplR)){
650 UpdateMapSignal(j1,col,ntrack,idhit,module,pulse1,pList);
652 flag = 1; // only first next!!
655 // loop in column direction
659 xr = gRandom->Rndm();
660 //if ((j2<0) || (j2>(GetNPixelsX()-1)) || (pulse2<GetThreshold())){
661 if ((j2<0) || (j2>GetNPixelsX()-1) || (xr>couplC)){
665 UpdateMapSignal(row,j2,ntrack,idhit,module,pulse2,pList);
667 flag = 1; // only first next!!
672 //______________________________________________________________________
673 void AliITSsimulationSPD::SetCouplingOld(Int_t row, Int_t col, Int_t ntrack,
674 Int_t idhit,Int_t module,
675 AliITSpList *pList) {
676 // Take into account the coupling between adiacent pixels.
677 // The parameters probcol and probrow are the fractions of the
678 // signal in one pixel shared in the two adjacent pixels along
679 // the column and row direction, respectively.
681 // Int_t row pixel row number
682 // Int_t col pixel column number
683 // Int_t ntrack track number of track contributing to this pixel
684 // Int_t idhit hit index number of hit contributing to this pixel
685 // Int_t module module number
686 // AliITSpList *pList the array of SDigits
688 // AliITSpList *pList the array of SDigits
694 <img src="picts/ITS/barimodel_3.gif">
697 <font size=+2 color=red>
698 <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
704 Double_t pulse1,pulse2;
705 Double_t couplR=0.0,couplC=0.0;
707 GetCouplings(couplR,couplC);
710 pulse1 = fMapA2->GetSignal(row,col);
712 for (Int_t isign=-1;isign<=1;isign+=2){// loop in row direction
716 if ((j1<0) || (j1>GetNPixelsZ()-1) || (pulse1<GetThreshold())){
717 pulse1 = fMapA2->GetSignal(row,col);
721 UpdateMapSignal(j1,col,ntrack,idhit,module,pulse1,pList);
725 // loop in column direction
729 if ((j2<0) || (j2>(GetNPixelsX()-1)) || (pulse2<GetThreshold())){
730 pulse2 = fMapA2->GetSignal(row,col);
734 UpdateMapSignal(row,j2,ntrack,idhit,module,pulse2,pList);
740 //______________________________________________________________________
741 void AliITSsimulationSPD::CreateDigit(Int_t module,AliITSpList *pList) {
742 // The pixels are fired if the energy deposited inside them is above
743 // the threshold parameter ethr. Fired pixed are interpreted as digits
744 // and stored in the file digitfilename. One also needs to write out
745 // cases when there is only noise (nhits==0).
748 // AliITSpList *pList the array of SDigits
750 // AliITSpList *pList the array of SDigits
754 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
756 Int_t size = AliITSdigitSPD::GetNTracks();
757 Int_t * digits = new Int_t[size];
758 Int_t * tracks = new Int_t[size];
759 Int_t * hits = new Int_t[size];
760 Float_t * charges = new Float_t[size];
763 module=0; // remove unused variable warning.
764 for(j1=0;j1<size;j1++){tracks[j1]=-3;hits[j1]=-1;charges[j1]=0.0;}
765 for (Int_t r=1;r<=GetNPixelsZ();r++) {
766 for (Int_t c=1;c<=GetNPixelsX();c++) {
767 // check if the deposited energy in a pixel is above the
769 Float_t signal = (Float_t) fMapA2->GetSignal(r,c);
770 if ( signal > GetThreshold()) {
771 digits[0] = r-1; // digits starts from 0
772 digits[1] = c-1; // digits starts from 0
774 digits[2] = (Int_t) signal; // the signal is stored in
776 for(j1=0;j1<size;j1++){
777 if(j1<pList->GetNEnteries()){
778 tracks[j1] = pList->GetTrack(r,c,j1);
779 hits[j1] = pList->GetHit(r,c,j1);
787 aliITS->AddSimDigit(0,phys,digits,tracks,hits,charges);
789 cout << " CreateSPDDigit mod=" << fModule << " r,c=" << r;
790 cout <<","<<c<< " sig=" << fpList->GetSignalOnly(r,c);
791 cout << " noise=" << fpList->GetNoise(r,c);
792 cout << " Msig="<< signal << " Thres=" << GetThreshold();
795 } // end if of threshold condition
803 //______________________________________________________________________
804 void AliITSsimulationSPD::SetFluctuations(AliITSpList *pList,Int_t module) {
805 // Set the electronic noise and threshold non-uniformities to all the
806 // pixels in a detector.
807 // The parameter fSigma is the squared sum of the sigma due to noise
808 // and the sigma of the threshold distribution among pixels.
810 // Int_t module modulel number
811 // AliITSpList *pList the array of SDigits
813 // AliITSpList *pList the array of SDigits
819 <img src="picts/ITS/barimodel_1.gif">
822 <font size=+2 color=red>
823 <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
828 Double_t thr=0.0,sigm=0.0;
829 Double_t signal,sigma;
832 GetThresholds(thr,sigm);
833 sigma = (Double_t) sigm;
834 for(iz=1;iz<=GetNPixelsZ();iz++){
835 for(ix=1;ix<=GetNPixelsX();ix++){
836 signal = sigma*gRandom->Gaus();
837 fMapA2->SetHit(iz,ix,signal);
838 // insert in the label-signal-hit list the pixels fired
840 pList->AddNoise(iz,ix,module,signal);
841 } // end of loop on pixels
842 } // end of loop on pixels
844 //______________________________________________________________________
845 void AliITSsimulationSPD::SetMask() {
846 // Apply a mask to the SPD module. 1% of the pixel channels are
847 // masked. When the database will be ready, the masked pixels
848 // should be read from it.
858 Float_t perc = ((AliITSresponseSPD*)fResponse)->GetFractionDead();
859 // in this way we get the same set of random numbers for all runs.
860 // This is a cluge for now.
861 static TRandom *rnd = new TRandom();
863 totMask= perc*GetNPixelsZ()*GetNPixelsX();
864 for(im=1;im<totMask;im++){
866 ix=(Int_t)(rnd->Rndm()*(GetNPixelsX()-1.) + 1.);
867 } while(ix<=0 || ix>GetNPixelsX());
869 iz=(Int_t)(rnd->Rndm()*(GetNPixelsZ()-1.) + 1.);
870 } while(iz<=0 || iz>GetNPixelsZ());
872 fMapA2->SetHit(iz,ix,signal);
873 } // end loop on masked pixels
875 //______________________________________________________________________
876 void AliITSsimulationSPD::CreateHistograms() {
886 fHis=new TObjArray(GetNPixelsZ());
887 for(i=0;i<GetNPixelsZ();i++) {
888 TString spdname("spd_");
890 sprintf(candnum,"%d",i+1);
891 spdname.Append(candnum);
892 (*fHis)[i] = new TH1F(spdname.Data(),"SPD maps",
893 GetNPixelsX(),0.,(Float_t) GetNPixelsX());
896 //______________________________________________________________________
897 void AliITSsimulationSPD::ResetHistograms() {
898 // Reset histograms for this detector
907 for(i=0;i<GetNPixelsZ();i++ ) {
908 if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
911 //______________________________________________________________________
912 void AliITSsimulationSPD::WriteSDigits(AliITSpList *pList){
913 // Fills the Summable digits Tree
915 // AliITSpList *pList the array of SDigits
917 // AliITSpList *pList the array of SDigits
921 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
923 pList->GetMaxMapIndex(ni,nj);
924 for(i=0;i<ni;i++)for(j=0;j<nj;j++){
925 if(pList->GetSignalOnly(i,j)>0.0){
926 aliITS->AddSumDigit(*(pList->GetpListItem(i,j)));
928 cout << "pListSPD: " << *(pList->GetpListItem(i,j)) << endl;
929 cout << " CreateSPDSDigit mod=" << fModule << " r,c=";
930 cout << i <<","<< j << " sig=" << fpList->GetSignalOnly(i,j);
931 cout << " noise=" << fpList->GetNoise(i,j) <<endl;
937 //______________________________________________________________________
938 void AliITSsimulationSPD::FillMapFrompList(AliITSpList *pList){
939 // Fills fMap2A from the pList of Summable digits
941 // AliITSpList *pList the array of SDigits
943 // AliITSpList *pList the array of SDigits
948 for(iz=0;iz<GetNPixelsZ();iz++)for(ix=0;ix<GetNPixelsX();ix++)
949 fMapA2->AddSignal(iz,ix,pList->GetSignal(iz,ix));