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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 **************************************************************************/
5c5273c2 15
88cb7938 16/* $Id$ */
b0f5e3fc 17
4ae5bbc4 18#include <Riostream.h>
b0f5e3fc 19#include <stdlib.h>
20#include <stdio.h>
1ca7869b 21#include <string.h>
22
ece86d9a 23#include <TCanvas.h>
24#include <TF1.h>
1ca7869b 25#include <TH1.h>
26#include <TFile.h>
ece86d9a 27
e8189707 28#include "AliITS.h"
e8189707 29#include "AliITSMapA2.h"
e8189707 30#include "AliITSRawData.h"
f77f13c8 31#include "AliITSdigitSPD.h"
32#include "AliITSetfSDD.h"
50d05d7b 33#include "AliITSgeom.h"
f77f13c8 34#include "AliITSmodule.h"
35#include "AliITSpList.h"
c7a4dac0 36#include "AliITSresponseSDD.h"
f77f13c8 37#include "AliITSsegmentationSDD.h"
1ca7869b 38#include "AliITSsimulationSDD.h"
f77f13c8 39#include "AliLog.h"
40#include "AliRun.h"
b0f5e3fc 41
b0f5e3fc 42ClassImp(AliITSsimulationSDD)
43////////////////////////////////////////////////////////////////////////
8ba39da9 44// Version: 0 //
45// Written by Piergiorgio Cerello //
46// November 23 1999 //
47// //
48// AliITSsimulationSDD is the simulation of SDDs. //
49////////////////////////////////////////////////////////////////////////
50
51//______________________________________________________________________
aacedc3e 52Int_t power(Int_t b, Int_t e) {
53 // compute b to the e power, where both b and e are Int_ts.
54 Int_t power = 1,i;
3d2c9d72 55
aacedc3e 56 for(i=0; i<e; i++) power *= b;
57 return power;
8a33ae9e 58}
59//______________________________________________________________________
b0f5e3fc 60void FastFourierTransform(AliITSetfSDD *alisddetf,Double_t *real,
61 Double_t *imag,Int_t direction) {
aacedc3e 62 // Do a Fast Fourier Transform
63
64 Int_t samples = alisddetf->GetSamples();
65 Int_t l = (Int_t) ((log((Float_t) samples)/log(2.))+0.5);
66 Int_t m1 = samples;
67 Int_t m = samples/2;
68 Int_t m2 = samples/m1;
69 Int_t i,j,k;
70 for(i=1; i<=l; i++) {
71 for(j=0; j<samples; j += m1) {
72 Int_t p = 0;
73 for(k=j; k<= j+m-1; k++) {
74 Double_t wsr = alisddetf->GetWeightReal(p);
75 Double_t wsi = alisddetf->GetWeightImag(p);
76 if(direction == -1) wsi = -wsi;
77 Double_t xr = *(real+k+m);
78 Double_t xi = *(imag+k+m);
79 *(real+k+m) = wsr*(*(real+k)-xr) - wsi*(*(imag+k)-xi);
80 *(imag+k+m) = wsr*(*(imag+k)-xi) + wsi*(*(real+k)-xr);
81 *(real+k) += xr;
82 *(imag+k) += xi;
83 p += m2;
84 } // end for k
85 } // end for j
86 m1 = m;
87 m /= 2;
88 m2 += m2;
3d2c9d72 89 } // end for i
aacedc3e 90
91 for(j=0; j<samples; j++) {
92 Int_t j1 = j;
93 Int_t p = 0;
94 Int_t i1;
95 for(i1=1; i1<=l; i1++) {
96 Int_t j2 = j1;
97 j1 /= 2;
98 p = p + p + j2 - j1 - j1;
99 } // end for i1
100 if(p >= j) {
101 Double_t xr = *(real+j);
102 Double_t xi = *(imag+j);
103 *(real+j) = *(real+p);
104 *(imag+j) = *(imag+p);
105 *(real+p) = xr;
106 *(imag+p) = xi;
107 } // end if p>=j
108 } // end for j
109 if(direction == -1) {
110 for(i=0; i<samples; i++) {
111 *(real+i) /= samples;
112 *(imag+i) /= samples;
113 } // end for i
114 } // end if direction == -1
115 return;
b0f5e3fc 116}
8a33ae9e 117//______________________________________________________________________
aacedc3e 118AliITSsimulationSDD::AliITSsimulationSDD():
119AliITSsimulation(),
120fITS(0),
121fHitMap2(0),
122fHitSigMap2(0),
123fHitNoiMap2(0),
124fStream(0),
125fElectronics(0),
126fInZR(0),
127fInZI(0),
128fOutZR(0),
129fOutZI(0),
130fAnodeFire(0),
131fHis(0),
132fD(),
133fT1(),
134fTol(),
135fBaseline(),
136fNoise(),
137fTreeB(0),
138fFileName(),
139fFlag(kFALSE),
140fCheckNoise(kFALSE),
141fCrosstalkFlag(kFALSE),
142fDoFFT(1),
143fNofMaps(0),
144fMaxNofSamples(0),
145fScaleSize(0){
146 // Default constructor
147 SetScaleFourier();
148 SetPerpendTracksFlag();
149 SetCrosstalkFlag();
150 SetDoFFT();
151 SetCheckNoise();
b0f5e3fc 152}
8a33ae9e 153//______________________________________________________________________
ac74f489 154AliITSsimulationSDD::AliITSsimulationSDD(AliITSsimulationSDD &source) :
aacedc3e 155 AliITSsimulation(source){
156 // Copy constructor to satify Coding roules only.
8a33ae9e 157
aacedc3e 158 if(this==&source) return;
d2f55a22 159 Error("AliITSsimulationSDD","Not allowed to make a copy of "
aacedc3e 160 "AliITSsimulationSDD Using default creater instead");
161 AliITSsimulationSDD();
b0f5e3fc 162}
8a33ae9e 163//______________________________________________________________________
d2f55a22 164AliITSsimulationSDD& AliITSsimulationSDD::operator=(const AliITSsimulationSDD &src){
165 // Assignment operator to satify Coding roules only.
166
167 if(this==&src) return *this;
168 Error("AliITSsimulationSDD","Not allowed to make a = with "
169 "AliITSsimulationSDD Using default creater instead");
170 return *this ;
171}
172//______________________________________________________________________
5402d9ca 173AliITSsimulation& AliITSsimulationSDD::operator=(const AliITSsimulation &src){
aacedc3e 174 // Assignment operator to satify Coding roules only.
8a33ae9e 175
aacedc3e 176 if(this==&src) return *this;
177 Error("AliITSsimulationSSD","Not allowed to make a = with "
178 "AliITSsimulationSDD Using default creater instead");
179 return *this ;
b0f5e3fc 180}
d2f55a22 181
8a33ae9e 182//______________________________________________________________________
8ba39da9 183AliITSsimulationSDD::AliITSsimulationSDD(AliITSDetTypeSim* dettyp):
184AliITSsimulation(dettyp),
aacedc3e 185fITS(0),
186fHitMap2(0),
187fHitSigMap2(0),
188fHitNoiMap2(0),
189fStream(0),
190fElectronics(0),
191fInZR(0),
192fInZI(0),
193fOutZR(0),
194fOutZI(0),
195fAnodeFire(0),
196fHis(0),
197fD(),
198fT1(),
199fTol(),
200fBaseline(),
201fNoise(),
202fTreeB(0),
203fFileName(),
204fFlag(kFALSE),
205fCheckNoise(kFALSE),
206fCrosstalkFlag(kFALSE),
207fDoFFT(1),
208fNofMaps(0),
209fMaxNofSamples(0),
210fScaleSize(0){
211 // Standard Constructor
212
213 Init();
c7a4dac0 214}
215//______________________________________________________________________
aacedc3e 216void AliITSsimulationSDD::Init(){
217 // Standard Constructor
218
219 SetScaleFourier();
220 SetPerpendTracksFlag();
221 SetCrosstalkFlag();
222 SetDoFFT();
223 SetCheckNoise();
224
8ba39da9 225 AliITSsegmentationSDD* seg = (AliITSsegmentationSDD*)GetSegmentationModel(1);
226
227 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
228 fpList = new AliITSpList( seg->Npz(),
229 fScaleSize*seg->Npx() );
230 fHitSigMap2 = new AliITSMapA2(seg,fScaleSize,1);
231 fHitNoiMap2 = new AliITSMapA2(seg,fScaleSize,1);
aacedc3e 232 fHitMap2 = fHitSigMap2;
233
8ba39da9 234 fNofMaps = seg->Npz();
235 fMaxNofSamples = seg->Npx();
aacedc3e 236 fAnodeFire = new Bool_t [fNofMaps];
43217ad9 237
8ba39da9 238 Float_t sddLength = seg->Dx();
239 Float_t sddWidth = seg->Dz();
aacedc3e 240
241 Int_t dummy = 0;
8ba39da9 242 Float_t anodePitch = seg->Dpz(dummy);
243 Double_t timeStep = (Double_t)seg->Dpx(dummy);
244 Float_t driftSpeed = res->DriftSpeed();
aacedc3e 245
246 if(anodePitch*(fNofMaps/2) > sddWidth) {
247 Warning("AliITSsimulationSDD",
248 "Too many anodes %d or too big pitch %f \n",
249 fNofMaps/2,anodePitch);
250 } // end if
b0f5e3fc 251
aacedc3e 252 if(timeStep*fMaxNofSamples < sddLength/driftSpeed) {
253 Error("AliITSsimulationSDD",
254 "Time Interval > Allowed Time Interval: exit\n");
255 return;
256 } // end if
b0f5e3fc 257
aacedc3e 258 fElectronics = new AliITSetfSDD(timeStep/fScaleSize,
8ba39da9 259 res->Electronics());
b0f5e3fc 260
aacedc3e 261 char opt1[20], opt2[20];
8ba39da9 262 res->ParamOptions(opt1,opt2);
aacedc3e 263 fParam = opt2;
264 char *same = strstr(opt1,"same");
265 if (same) {
266 fNoise.Set(0);
267 fBaseline.Set(0);
268 } else {
269 fNoise.Set(fNofMaps);
270 fBaseline.Set(fNofMaps);
271 } // end if
5d18fa90 272
8ba39da9 273 const char *kopt=res->ZeroSuppOption();
aacedc3e 274 if (strstr(fParam.Data(),"file") ) {
275 fD.Set(fNofMaps);
276 fT1.Set(fNofMaps);
277 if (strstr(kopt,"2D")) {
278 fT2.Set(fNofMaps);
279 fTol.Set(0);
280 Init2D(); // desactivate if param change module by module
281 } else if(strstr(kopt,"1D")) {
282 fT2.Set(2);
283 fTol.Set(2);
284 Init1D(); // desactivate if param change module by module
285 } // end if strstr
286 } else {
287 fD.Set(2);
288 fTol.Set(2);
289 fT1.Set(2);
290 fT2.Set(2);
291 SetCompressParam();
292 } // end if else strstr
293
8ba39da9 294 Bool_t write = res->OutputOption();
aacedc3e 295 if(write && strstr(kopt,"2D")) MakeTreeB();
296
297 // call here if baseline does not change by module
298 // ReadBaseline();
299
300 fITS = (AliITS*)gAlice->GetModule("ITS");
301 Int_t size = fNofMaps*fMaxNofSamples;
302 fStream = new AliITSInStream(size);
303
304 fInZR = new Double_t [fScaleSize*fMaxNofSamples];
305 fInZI = new Double_t [fScaleSize*fMaxNofSamples];
306 fOutZR = new Double_t [fScaleSize*fMaxNofSamples];
307 fOutZI = new Double_t [fScaleSize*fMaxNofSamples];
b0f5e3fc 308}
8a33ae9e 309//______________________________________________________________________
b0f5e3fc 310AliITSsimulationSDD::~AliITSsimulationSDD() {
aacedc3e 311 // destructor
312
313 // delete fpList;
314 delete fHitSigMap2;
315 delete fHitNoiMap2;
316 delete fStream;
317 delete fElectronics;
318
319 fITS = 0;
320
321 if (fHis) {
322 fHis->Delete();
323 delete fHis;
324 } // end if fHis
325 if(fTreeB) delete fTreeB;
326 if(fInZR) delete [] fInZR;
327 if(fInZI) delete [] fInZI;
328 if(fOutZR) delete [] fOutZR;
329 if(fOutZI) delete [] fOutZI;
330 if(fAnodeFire) delete [] fAnodeFire;
b0f5e3fc 331}
8a33ae9e 332//______________________________________________________________________
50d05d7b 333void AliITSsimulationSDD::InitSimulationModule( Int_t module, Int_t event ) {
aacedc3e 334 // create maps to build the lists of tracks for each summable digit
335 fModule = module;
336 fEvent = event;
337 ClearMaps();
338 memset(fAnodeFire,0,sizeof(Bool_t)*fNofMaps);
50d05d7b 339}
340//______________________________________________________________________
341void AliITSsimulationSDD::ClearMaps() {
aacedc3e 342 // clear maps
343 fpList->ClearMap();
344 fHitSigMap2->ClearMap();
345 fHitNoiMap2->ClearMap();
50d05d7b 346}
347//______________________________________________________________________
aacedc3e 348void AliITSsimulationSDD::SDigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
349 // digitize module using the "slow" detector simulator creating
350 // summable digits.
351
352 TObjArray *fHits = mod->GetHits();
353 Int_t nhits = fHits->GetEntriesFast();
354 if( !nhits ) return;
355
356 InitSimulationModule( md, ev );
357 HitsToAnalogDigits( mod );
8ba39da9 358 ChargeToSignal( fModule,kFALSE ); // - Process signal without add noise
aacedc3e 359 fHitMap2 = fHitNoiMap2; // - Swap to noise map
8ba39da9 360 ChargeToSignal( fModule,kTRUE ); // - Process only noise
aacedc3e 361 fHitMap2 = fHitSigMap2; // - Return to signal map
362 WriteSDigits();
363 ClearMaps();
50d05d7b 364}
365//______________________________________________________________________
aacedc3e 366Bool_t AliITSsimulationSDD::AddSDigitsToModule(TClonesArray *pItemArray,
367 Int_t mask ) {
368 // Add Summable digits to module maps.
8ba39da9 369 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
aacedc3e 370 Int_t nItems = pItemArray->GetEntries();
8ba39da9 371 Double_t maxadc = res->MaxAdc();
aacedc3e 372 Bool_t sig = kFALSE;
48058160 373
aacedc3e 374 // cout << "Adding "<< nItems <<" SDigits to module " << fModule << endl;
375 for( Int_t i=0; i<nItems; i++ ) {
376 AliITSpListItem * pItem = (AliITSpListItem *)(pItemArray->At( i ));
377 if( pItem->GetModule() != fModule ) {
378 Error( "AliITSsimulationSDD","Error reading, SDigits module "
379 "%d != current module %d: exit",
380 pItem->GetModule(), fModule );
381 return sig;
382 } // end if
383
384 if(pItem->GetSignal()>0.0 ) sig = kTRUE;
43217ad9 385
aacedc3e 386 fpList->AddItemTo( mask, pItem ); // Add SignalAfterElect + noise
387 AliITSpListItem * pItem2 = fpList->GetpListItem( pItem->GetIndex() );
388 Double_t sigAE = pItem2->GetSignalAfterElect();
389 if( sigAE >= maxadc ) sigAE = maxadc-1; // avoid overflow signal
390 Int_t ia;
391 Int_t it;
392 fpList->GetMapIndex( pItem->GetIndex(), ia, it );
393 fHitMap2->SetHit( ia, it, sigAE );
394 fAnodeFire[ia] = kTRUE;
395 }
396 return sig;
48058160 397}
50d05d7b 398//______________________________________________________________________
399void AliITSsimulationSDD::FinishSDigitiseModule() {
aacedc3e 400 // digitize module using the "slow" detector simulator from
401 // the sum of summable digits.
402 FinishDigits() ;
403 ClearMaps();
c7a4dac0 404}
405//______________________________________________________________________
b0f5e3fc 406void AliITSsimulationSDD::DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
aacedc3e 407 // create maps to build the lists of tracks for each digit
b0f5e3fc 408
aacedc3e 409 TObjArray *fHits = mod->GetHits();
410 Int_t nhits = fHits->GetEntriesFast();
8a33ae9e 411
aacedc3e 412 InitSimulationModule( md, ev );
50d05d7b 413
aacedc3e 414 if( !nhits && fCheckNoise ) {
8ba39da9 415 ChargeToSignal( fModule,kTRUE ); // process noise
aacedc3e 416 GetNoise();
417 ClearMaps();
418 return;
419 } else
420 if( !nhits ) return;
48058160 421
aacedc3e 422 HitsToAnalogDigits( mod );
8ba39da9 423 ChargeToSignal( fModule,kTRUE ); // process signal + noise
aacedc3e 424
425 for( Int_t i=0; i<fNofMaps; i++ ) {
426 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
427 Int_t jdx = j*fScaleSize;
428 Int_t index = fpList->GetHitIndex( i, j );
429 AliITSpListItem pItemTmp2( fModule, index, 0. );
430 // put the fScaleSize analog digits in only one
431 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
432 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
433 if( pItemTmp == 0 ) continue;
434 pItemTmp2.Add( pItemTmp );
435 }
436 fpList->DeleteHit( i, j );
437 fpList->AddItemTo( 0, &pItemTmp2 );
438 }
48058160 439 }
aacedc3e 440 FinishDigits();
441 ClearMaps();
c7a4dac0 442}
443//______________________________________________________________________
50d05d7b 444void AliITSsimulationSDD::FinishDigits() {
aacedc3e 445 // introduce the electronics effects and do zero-suppression if required
8a33ae9e 446
8ba39da9 447 ApplyDeadChannels(fModule);
448 if( fCrosstalkFlag ) ApplyCrosstalk(fModule);
50d05d7b 449
8ba39da9 450 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
451 const char *kopt = res->ZeroSuppOption();
aacedc3e 452 ZeroSuppression( kopt );
c7a4dac0 453}
454//______________________________________________________________________
50d05d7b 455void AliITSsimulationSDD::HitsToAnalogDigits( AliITSmodule *mod ) {
aacedc3e 456 // create maps to build the lists of tracks for each digit
457
8ba39da9 458 AliITSsegmentationSDD* seg = (AliITSsegmentationSDD*)GetSegmentationModel(1);
459 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
460 TObjArray *hits = mod->GetHits();
aacedc3e 461 Int_t nhits = hits->GetEntriesFast();
8ba39da9 462
aacedc3e 463 // Int_t arg[6] = {0,0,0,0,0,0};
464 Int_t dummy = 0;
465 Int_t nofAnodes = fNofMaps/2;
8ba39da9 466 Float_t sddLength = seg->Dx();
467 Float_t sddWidth = seg->Dz();
468 Float_t anodePitch = seg->Dpz(dummy);
469 Float_t timeStep = seg->Dpx(dummy);
470 Float_t driftSpeed = res->DriftSpeed();
471 Float_t maxadc = res->MaxAdc();
472 Float_t topValue = res->DynamicRange();
473 Float_t cHloss = res->ChargeLoss();
aacedc3e 474 Float_t norm = maxadc/topValue;
8ba39da9 475 Double_t dfCoeff, s1; res->DiffCoeff(dfCoeff,s1); // Signal 2d Shape
476 Double_t eVpairs = res->GetGeVToCharge()*1.0E9; // 3.6 eV by def.
477 Float_t nsigma = res->NSigmaIntegration(); //
478 Int_t nlookups = res->GausNLookUp(); //
479 Float_t jitter = res->JitterError(); //
aacedc3e 480
481 // Piergiorgio's part (apart for few variables which I made float
482 // when i thought that can be done
483 // Fill detector maps with GEANT hits
484 // loop over hits in the module
485
486 const Float_t kconv = 1.0e+6; // GeV->KeV
487 Int_t itrack = 0;
488 Int_t hitDetector; // detector number (lay,lad,hitDetector)
489 Int_t iWing; // which detector wing/side.
490 Int_t detector; // 2*(detector-1)+iWing
491 Int_t ii,kk,ka,kt; // loop indexs
492 Int_t ia,it,index; // sub-pixel integration indexies
493 Int_t iAnode; // anode number.
494 Int_t timeSample; // time buckett.
495 Int_t anodeWindow; // anode direction charge integration width
496 Int_t timeWindow; // time direction charge integration width
497 Int_t jamin,jamax; // anode charge integration window
498 Int_t jtmin,jtmax; // time charge integration window
499 Int_t ndiv; // Anode window division factor.
500 Int_t nsplit; // the number of splits in anode and time windows==1.
501 Int_t nOfSplits; // number of times track length is split into
502 Float_t nOfSplitsF; // Floating point version of nOfSplits.
503 Float_t kkF; // Floating point version of loop index kk.
504 Float_t pathInSDD; // Track length in SDD.
505 Float_t drPath; // average position of track in detector. in microns
506 Float_t drTime; // Drift time
507 Float_t nmul; // drift time window multiplication factor.
508 Float_t avDrft; // x position of path length segment in cm.
509 Float_t avAnode; // Anode for path length segment in Anode number (float)
510 Float_t xAnode; // Floating point anode number.
511 Float_t driftPath; // avDrft in microns.
512 Float_t width; // width of signal at anodes.
513 Double_t depEnergy; // Energy deposited in this GEANT step.
514 Double_t xL[3],dxL[3]; // local hit coordinates and diff.
515 Double_t sigA; // sigma of signal at anode.
516 Double_t sigT; // sigma in time/drift direction for track segment
517 Double_t aStep,aConst; // sub-pixel size and offset anode
518 Double_t tStep,tConst; // sub-pixel size and offset time
519 Double_t amplitude; // signal amplitude for track segment in nanoAmpere
520 Double_t chargeloss; // charge loss for track segment.
521 Double_t anodeAmplitude; // signal amplitude in anode direction
522 Double_t aExpo; // exponent of Gaussian anode direction
523 Double_t timeAmplitude; // signal amplitude in time direction
524 Double_t tExpo; // exponent of Gaussian time direction
525 // Double_t tof; // Time of flight in ns of this step.
526
527 for(ii=0; ii<nhits; ii++) {
528 if(!mod->LineSegmentL(ii,xL[0],dxL[0],xL[1],dxL[1],xL[2],dxL[2],
529 depEnergy,itrack)) continue;
530 xL[0] += 0.0001*gRandom->Gaus( 0, jitter ); //
531 depEnergy *= kconv;
532 hitDetector = mod->GetDet();
533 //tof = 1.E+09*(mod->GetHit(ii)->GetTOF()); // tof in ns.
534 //if(tof>sddLength/driftSpeed) continue; // hit happed too late.
535
536 // scale path to simulate a perpendicular track
537 // continue if the particle did not lose energy
538 // passing through detector
539 if (!depEnergy) {
f77f13c8 540 AliDebug(1,
541 Form("fTrack = %d hit=%d module=%d This particle has passed without losing energy!",
542 itrack,ii,mod->GetIndex()));
aacedc3e 543 continue;
544 } // end if !depEnergy
545
546 pathInSDD = TMath::Sqrt(dxL[0]*dxL[0]+dxL[1]*dxL[1]+dxL[2]*dxL[2]);
547
548 if (fFlag && pathInSDD) { depEnergy *= (0.03/pathInSDD); }
549 drPath = 10000.*(dxL[0]+2.*xL[0])*0.5;
550 if(drPath < 0) drPath = -drPath;
551 drPath = sddLength-drPath;
552 if(drPath < 0) {
f77f13c8 553 AliDebug(1, // this should be fixed at geometry level
554 Form("negative drift path drPath=%e sddLength=%e dxL[0]=%e xL[0]=%e",
555 drPath,sddLength,dxL[0],xL[0]));
aacedc3e 556 continue;
557 } // end if drPath < 0
558
559 // Compute number of segments to brake step path into
560 drTime = drPath/driftSpeed; // Drift Time
561 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);// Sigma along the anodes
562 // calcuate the number of time the path length should be split into.
563 nOfSplits = (Int_t) (1. + 10000.*pathInSDD/sigA);
564 if(fFlag) nOfSplits = 1;
565
566 // loop over path segments, init. some variables.
567 depEnergy /= nOfSplits;
568 nOfSplitsF = (Float_t) nOfSplits;
569 for(kk=0;kk<nOfSplits;kk++) { // loop over path segments
570 kkF = (Float_t) kk + 0.5;
571 avDrft = xL[0]+dxL[0]*kkF/nOfSplitsF;
572 avAnode = xL[2]+dxL[2]*kkF/nOfSplitsF;
573 driftPath = 10000.*avDrft;
574
575 iWing = 2; // Assume wing is 2
576 if(driftPath < 0) { // if wing is not 2 it is 1.
577 iWing = 1;
578 driftPath = -driftPath;
579 } // end if driftPath < 0
580 driftPath = sddLength-driftPath;
581 detector = 2*(hitDetector-1) + iWing;
582 if(driftPath < 0) {
f77f13c8 583 AliDebug(1, // this should be fixed at geometry level
584 Form("negative drift path driftPath=%e sddLength=%e avDrft=%e dxL[0]=%e xL[0]=%e",
585 driftPath,sddLength,avDrft,dxL[0],xL[0]));
aacedc3e 586 continue;
587 } // end if driftPath < 0
588
589 // Drift Time
590 drTime = driftPath/driftSpeed; // drift time for segment.
591 timeSample = (Int_t) (fScaleSize*drTime/timeStep + 1);
592 // compute time Sample including tof information. The tof only
593 // effects the time of the signal is recoreded and not the
594 // the defusion.
595 // timeSample = (Int_t) (fScaleSize*(drTime+tof)/timeStep + 1);
596 if(timeSample > fScaleSize*fMaxNofSamples) {
597 Warning("HitsToAnalogDigits","Wrong Time Sample: %e",
598 timeSample);
599 continue;
600 } // end if timeSample > fScaleSize*fMaxNoofSamples
601
602 // Anode
603 xAnode = 10000.*(avAnode)/anodePitch + nofAnodes/2; // +1?
604 if(xAnode*anodePitch > sddWidth || xAnode*anodePitch < 0.)
605 Warning("HitsToAnalogDigits",
606 "Exceedubg sddWidth=%e Z = %e",
607 sddWidth,xAnode*anodePitch);
608 iAnode = (Int_t) (1.+xAnode); // xAnode?
609 if(iAnode < 1 || iAnode > nofAnodes) {
610 Warning("HitToAnalogDigits","Wrong iAnode: 1<%d>%d",
611 iAnode,nofAnodes);
612 continue;
613 } // end if iAnode < 1 || iAnode > nofAnodes
614
615 // store straight away the particle position in the array
616 // of particles and take idhit=ii only when part is entering (this
617 // requires FillModules() in the macro for analysis) :
b0f5e3fc 618
aacedc3e 619 // Sigma along the anodes for track segment.
620 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);
621 sigT = sigA/driftSpeed;
622 // Peak amplitude in nanoAmpere
623 amplitude = fScaleSize*160.*depEnergy/
624 (timeStep*eVpairs*2.*acos(-1.)*sigT*sigA);
625 amplitude *= timeStep/25.; // WARNING!!!!! Amplitude scaling to
626 // account for clock variations
627 // (reference value: 40 MHz)
628 chargeloss = 1.-cHloss*driftPath/1000;
629 amplitude *= chargeloss;
630 width = 2.*nsigma/(nlookups-1);
631 // Spread the charge
632 // Pixel index
633 ndiv = 2;
634 nmul = 3.;
635 if(drTime > 1200.) {
636 ndiv = 4;
637 nmul = 1.5;
638 } // end if drTime > 1200.
639 // Sub-pixel index
640 nsplit = 4; // hard-wired //nsplit=4;nsplit = (nsplit+1)/2*2;
641 // Sub-pixel size see computation of aExpo and tExpo.
642 aStep = anodePitch/(nsplit*fScaleSize*sigA);
643 aConst = xAnode*anodePitch/sigA;
644 tStep = timeStep/(nsplit*fScaleSize*sigT);
645 tConst = drTime/sigT;
646 // Define SDD window corresponding to the hit
647 anodeWindow = (Int_t)(fScaleSize*nsigma*sigA/anodePitch+1);
648 timeWindow = (Int_t) (fScaleSize*nsigma*sigT/timeStep+1.);
649 jamin = (iAnode - anodeWindow/ndiv - 1)*fScaleSize*nsplit +1;
650 jamax = (iAnode + anodeWindow/ndiv)*fScaleSize*nsplit;
651 if(jamin <= 0) jamin = 1;
652 if(jamax > fScaleSize*nofAnodes*nsplit)
653 jamax = fScaleSize*nofAnodes*nsplit;
654 // jtmin and jtmax are Hard-wired
655 jtmin = (Int_t)(timeSample-timeWindow*nmul-1)*nsplit+1;
656 jtmax = (Int_t)(timeSample+timeWindow*nmul)*nsplit;
657 if(jtmin <= 0) jtmin = 1;
658 if(jtmax > fScaleSize*fMaxNofSamples*nsplit)
659 jtmax = fScaleSize*fMaxNofSamples*nsplit;
660 // Spread the charge in the anode-time window
661 for(ka=jamin; ka <=jamax; ka++) {
662 ia = (ka-1)/(fScaleSize*nsplit) + 1;
663 if(ia <= 0) {
664 Warning("HitsToAnalogDigits","ia < 1: ");
665 continue;
666 } // end if
667 if(ia > nofAnodes) ia = nofAnodes;
668 aExpo = (aStep*(ka-0.5)-aConst);
669 if(TMath::Abs(aExpo) > nsigma) anodeAmplitude = 0.;
670 else {
671 dummy = (Int_t) ((aExpo+nsigma)/width);
8ba39da9 672 anodeAmplitude = amplitude*res->GausLookUp(dummy);
aacedc3e 673 } // end if TMath::Abs(aEspo) > nsigma
674 // index starts from 0
675 index = ((detector+1)%2)*nofAnodes+ia-1;
676 if(anodeAmplitude) for(kt=jtmin; kt<=jtmax; kt++) {
677 it = (kt-1)/nsplit+1; // it starts from 1
678 if(it<=0){
679 Warning("HitsToAnalogDigits","it < 1:");
680 continue;
681 } // end if
682 if(it>fScaleSize*fMaxNofSamples)
683 it = fScaleSize*fMaxNofSamples;
684 tExpo = (tStep*(kt-0.5)-tConst);
685 if(TMath::Abs(tExpo) > nsigma) timeAmplitude = 0.;
686 else {
687 dummy = (Int_t) ((tExpo+nsigma)/width);
688 timeAmplitude = anodeAmplitude*
8ba39da9 689 res->GausLookUp(dummy);
aacedc3e 690 } // end if TMath::Abs(tExpo) > nsigma
691 // build the list of Sdigits for this module
692 // arg[0] = index;
693 // arg[1] = it;
694 // arg[2] = itrack; // track number
695 // arg[3] = ii-1; // hit number.
696 timeAmplitude *= norm;
697 timeAmplitude *= 10;
698 // ListOfFiredCells(arg,timeAmplitude,alst,padr);
699 Double_t charge = timeAmplitude;
700 charge += fHitMap2->GetSignal(index,it-1);
701 fHitMap2->SetHit(index, it-1, charge);
702 fpList->AddSignal(index,it-1,itrack,ii-1,
703 mod->GetIndex(),timeAmplitude);
704 fAnodeFire[index] = kTRUE;
705 } // end if anodeAmplitude and loop over time in window
706 } // loop over anodes in window
707 } // end loop over "sub-hits"
708 } // end loop over hits
b0f5e3fc 709}
50d05d7b 710/*
8a33ae9e 711//______________________________________________________________________
b0f5e3fc 712void AliITSsimulationSDD::ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,
3d2c9d72 713 TObjArray *alist,TClonesArray *padr){
aacedc3e 714 // Returns the list of "fired" cells.
715
716 Int_t index = arg[0];
717 Int_t ik = arg[1];
718 Int_t idtrack = arg[2];
719 Int_t idhit = arg[3];
720 Int_t counter = arg[4];
721 Int_t countadr = arg[5];
722 Double_t charge = timeAmplitude;
723 charge += fHitMap2->GetSignal(index,ik-1);
724 fHitMap2->SetHit(index, ik-1, charge);
725
726 Int_t digits[3];
727 Int_t it = (Int_t)((ik-1)/fScaleSize);
728 digits[0] = index;
729 digits[1] = it;
730 digits[2] = (Int_t)timeAmplitude;
731 Float_t phys;
732 if (idtrack >= 0) phys = (Float_t)timeAmplitude;
733 else phys = 0;
734
735 Double_t cellcharge = 0.;
736 AliITSTransientDigit* pdigit;
737 // build the list of fired cells and update the info
738 if (!fHitMap1->TestHit(index, it)) {
739 new((*padr)[countadr++]) TVector(3);
740 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
741 trinfo(0) = (Float_t)idtrack;
742 trinfo(1) = (Float_t)idhit;
743 trinfo(2) = (Float_t)timeAmplitude;
744
745 alist->AddAtAndExpand(new AliITSTransientDigit(phys,digits),counter);
746 fHitMap1->SetHit(index, it, counter);
747 counter++;
748 pdigit=(AliITSTransientDigit*)alist->At(alist->GetLast());
749 // list of tracks
750 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
751 trlist->Add(&trinfo);
752 } else {
753 pdigit = (AliITSTransientDigit*) fHitMap1->GetHit(index, it);
754 for(Int_t kk=0;kk<fScaleSize;kk++) {
755 cellcharge += fHitMap2->GetSignal(index,fScaleSize*it+kk);
756 } // end for kk
757 // update charge
758 (*pdigit).fSignal = (Int_t)cellcharge;
759 (*pdigit).fPhysics += phys;
760 // update list of tracks
761 TObjArray* trlist = (TObjArray*)pdigit->TrackList();
762 Int_t lastentry = trlist->GetLast();
763 TVector *ptrkp = (TVector*)trlist->At(lastentry);
764 TVector &trinfo = *ptrkp;
765 Int_t lasttrack = Int_t(trinfo(0));
766 Float_t lastcharge=(trinfo(2));
767 if (lasttrack==idtrack ) {
768 lastcharge += (Float_t)timeAmplitude;
769 trlist->RemoveAt(lastentry);
770 trinfo(0) = lasttrack;
771 trinfo(1) = idhit;
772 trinfo(2) = lastcharge;
773 trlist->AddAt(&trinfo,lastentry);
774 } else {
775 new((*padr)[countadr++]) TVector(3);
776 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
777 trinfo(0) = (Float_t)idtrack;
778 trinfo(1) = (Float_t)idhit;
779 trinfo(2) = (Float_t)timeAmplitude;
780 trlist->Add(&trinfo);
781 } // end if lasttrack==idtrack
782
f77f13c8 783 if(AliDebugLevel()){
aacedc3e 784 // check the track list - debugging
785 Int_t trk[20], htrk[20];
786 Float_t chtrk[20];
787 Int_t nptracks = trlist->GetEntriesFast();
788 if (nptracks > 2) {
789 Int_t tr;
790 for (tr=0;tr<nptracks;tr++) {
791 TVector *pptrkp = (TVector*)trlist->At(tr);
792 TVector &pptrk = *pptrkp;
793 trk[tr] = Int_t(pptrk(0));
794 htrk[tr] = Int_t(pptrk(1));
795 chtrk[tr] = (pptrk(2));
796 cout << "nptracks "<<nptracks << endl;
797 } // end for tr
798 } // end if nptracks
f77f13c8 799 } // end if AliDebugLevel()
aacedc3e 800 } // end if pdigit
801
802 // update counter and countadr for next call.
803 arg[4] = counter;
804 arg[5] = countadr;
b0f5e3fc 805}
50d05d7b 806*/
b0f5e3fc 807//____________________________________________
50d05d7b 808void AliITSsimulationSDD::AddDigit( Int_t i, Int_t j, Int_t signal ) {
aacedc3e 809 // Adds a Digit.
810 Int_t size = AliITSdigitSPD::GetNTracks();
811 Int_t digits[3];
812 Int_t * tracks = new Int_t[size];
813 Int_t * hits = new Int_t[size];
814 Float_t phys;
815 Float_t * charges = new Float_t[size];
816
817 digits[0] = i;
818 digits[1] = j;
819 digits[2] = signal;
820
821 AliITSpListItem *pItem = fpList->GetpListItem( i, j );
822 if( pItem == 0 ) {
823 phys = 0.0;
824 for( Int_t l=0; l<size; l++ ) {
825 tracks[l] = 0;
826 hits[l] = 0;
827 charges[l] = 0.0;
828 }
829 } else {
830 Int_t idtrack = pItem->GetTrack( 0 );
831 if( idtrack >= 0 ) phys = pItem->GetSignal();
832 else phys = 0.0;
833
834 for( Int_t l=0; l<size; l++ ) if(l<pItem->GetMaxKept()) {
835 tracks[l] = pItem->GetTrack( l );
836 hits[l] = pItem->GetHit( l );
837 charges[l] = pItem->GetSignal( l );
838 }else{
839 tracks[l] = -3;
840 hits[l] = -1;
841 charges[l] = 0.0;
842 }// end for if
50d05d7b 843 }
50d05d7b 844
aacedc3e 845 fITS->AddSimDigit( 1, phys, digits, tracks, hits, charges );
846 delete [] tracks;
847 delete [] hits;
848 delete [] charges;
849}
8a33ae9e 850//______________________________________________________________________
8ba39da9 851void AliITSsimulationSDD::ChargeToSignal(Int_t mod,Bool_t bAddNoise) {
aacedc3e 852 // add baseline, noise, electronics and ADC saturation effects
853
854 char opt1[20], opt2[20];
8ba39da9 855 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(mod);
856
857 res->ParamOptions(opt1,opt2);
aacedc3e 858 char *read = strstr(opt1,"file");
859 Double_t baseline, noise;
860
861 if (read) {
862 static Bool_t readfile=kTRUE;
863 //read baseline and noise from file
864 if (readfile) ReadBaseline();
865 readfile=kFALSE;
8ba39da9 866 } else res->GetNoiseParam(noise,baseline);
aacedc3e 867
868 Float_t contrib=0;
869 Int_t i,k,kk;
8ba39da9 870 Float_t maxadc = res->MaxAdc();
aacedc3e 871 if(!fDoFFT) {
872 for (i=0;i<fNofMaps;i++) {
873 if( !fAnodeFire[i] ) continue;
874 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
875 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
876 fInZR[k] = fHitMap2->GetSignal(i,k);
877 if( bAddNoise ) {
878 contrib = (baseline + noise*gRandom->Gaus());
879 fInZR[k] += contrib;
880 }
881 } // end for k
882 for(k=0; k<fMaxNofSamples; k++) {
883 Double_t newcont = 0.;
884 Double_t maxcont = 0.;
885 for(kk=0;kk<fScaleSize;kk++) {
886 newcont = fInZR[fScaleSize*k+kk];
887 if(newcont > maxcont) maxcont = newcont;
888 } // end for kk
889 newcont = maxcont;
890 if (newcont >= maxadc) newcont = maxadc -1;
891 if(newcont >= baseline){
892 Warning("","newcont=%d>=baseline=%d",newcont,baseline);
893 } // end if
894 // back to analog: ?
895 fHitMap2->SetHit(i,k,newcont);
896 } // end for k
897 } // end for i loop over anodes
898 return;
899 } // end if DoFFT
900
ece86d9a 901 for (i=0;i<fNofMaps;i++) {
aacedc3e 902 if( !fAnodeFire[i] ) continue;
903 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
904 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
905 fInZR[k] = fHitMap2->GetSignal(i,k);
906 if( bAddNoise ) {
907 contrib = (baseline + noise*gRandom->Gaus());
908 fInZR[k] += contrib;
909 }
910 fInZI[k] = 0.;
911 } // end for k
912 FastFourierTransform(fElectronics,&fInZR[0],&fInZI[0],1);
913 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
914 Double_t rw = fElectronics->GetTraFunReal(k);
915 Double_t iw = fElectronics->GetTraFunImag(k);
916 fOutZR[k] = fInZR[k]*rw - fInZI[k]*iw;
917 fOutZI[k] = fInZR[k]*iw + fInZI[k]*rw;
918 } // end for k
919 FastFourierTransform(fElectronics,&fOutZR[0],&fOutZI[0],-1);
920 for(k=0; k<fMaxNofSamples; k++) {
921 Double_t newcont1 = 0.;
922 Double_t maxcont1 = 0.;
923 for(kk=0;kk<fScaleSize;kk++) {
924 newcont1 = fOutZR[fScaleSize*k+kk];
925 if(newcont1 > maxcont1) maxcont1 = newcont1;
926 } // end for kk
927 newcont1 = maxcont1;
928 if (newcont1 >= maxadc) newcont1 = maxadc -1;
929 fHitMap2->SetHit(i,k,newcont1);
930 } // end for k
8a33ae9e 931 } // end for i loop over anodes
3d2c9d72 932 return;
b0f5e3fc 933}
50d05d7b 934//____________________________________________________________________
8ba39da9 935void AliITSsimulationSDD::ApplyDeadChannels(Int_t mod) {
aacedc3e 936 // Set dead channel signal to zero
8ba39da9 937 AliITSresponseSDD * response = (AliITSresponseSDD *)GetResponseModel(mod);
938 AliITSsegmentationSDD* seg = (AliITSsegmentationSDD*)GetSegmentationModel(1);
aacedc3e 939 // nothing to do
8ba39da9 940 if( response->IsDead() ||
941 ( response->GetDeadChips() == 0 &&
942 response->GetDeadChannels() == 0 ) ) return;
50d05d7b 943
8ba39da9 944 // static AliITS *iTS = (AliITS*)gAlice->GetModule( "ITS" );
aacedc3e 945
8ba39da9 946 Int_t fMaxNofSamples = seg->Npx();
947 // AliITSgeom *geom = iTS->GetITSgeom();
948 // Int_t firstSDDMod = geom->GetStartDet( 1 );
aacedc3e 949 // loop over wings
950 for( Int_t j=0; j<2; j++ ) {
8ba39da9 951 // Int_t mod = (fModule-firstSDDMod)*2 + j;
952 for( Int_t u=0; u<response->Chips(); u++ )
953 for( Int_t v=0; v<response->Channels(); v++ ) {
954 Float_t gain = response->Gain(j, u, v );
955 for( Int_t k=0; k<fMaxNofSamples; k++ ) {
956 Int_t i = j*response->Chips()*response->Channels() +
957 u*response->Channels() +
958 v;
959 Double_t signal = gain * fHitMap2->GetSignal( i, k );
960 fHitMap2->SetHit( i, k, signal ); ///
961 }
962 }
963 }
50d05d7b 964}
965//______________________________________________________________________
8ba39da9 966void AliITSsimulationSDD::ApplyCrosstalk(Int_t mod) {
aacedc3e 967 // function add the crosstalk effect to signal
968 // temporal function, should be checked...!!!
8ba39da9 969 AliITSsegmentationSDD* seg = (AliITSsegmentationSDD*)GetSegmentationModel(1);
970
971 Int_t fNofMaps = seg->Npz();
972 Int_t fMaxNofSamples = seg->Npx();
aacedc3e 973
974 // create and inizialice crosstalk map
975 Float_t* ctk = new Float_t[fNofMaps*fMaxNofSamples+1];
976 if( ctk == NULL ) {
977 Error( "ApplyCrosstalk", "no memory for temporal map: exit \n" );
978 return;
979 }
980 memset( ctk, 0, sizeof(Float_t)*(fNofMaps*fMaxNofSamples+1) );
8ba39da9 981 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(mod);
aacedc3e 982
983 Double_t noise, baseline;
8ba39da9 984 res->GetNoiseParam( noise, baseline );
aacedc3e 985 for( Int_t z=0; z<fNofMaps; z++ ) {
986 Bool_t on = kFALSE;
987 Int_t tstart = 0;
988 Int_t tstop = 0;
989 Int_t nTsteps = 0;
50d05d7b 990
aacedc3e 991 for( Int_t l=0; l<fMaxNofSamples; l++ ) {
992 Float_t fadc = (Float_t)fHitMap2->GetSignal( z, l );
993 if( fadc > baseline ) {
994 if( on == kFALSE && l<fMaxNofSamples-4 ) {
995 Float_t fadc1 = (Float_t)fHitMap2->GetSignal( z, l+1 );
996 if( fadc1 < fadc ) continue;
997 on = kTRUE;
998 nTsteps = 0;
999 tstart = l;
1000 }
1001 nTsteps++;
1002 }
1003 else { // end fadc > baseline
1004 if( on == kTRUE ) {
1005 if( nTsteps > 2 ) {
1006 tstop = l;
1007 // make smooth derivative
1008 Float_t* dev = new Float_t[fMaxNofSamples+1];
1009 memset( dev, 0, sizeof(Float_t)*(fMaxNofSamples+1) );
1010 if( ctk == NULL ) {
1011 Error( "ApplyCrosstalk",
1012 "no memory for temporal array: exit \n" );
1013 return;
1014 }
1015 for( Int_t i=tstart; i<tstop; i++ ) {
1016 if( i > 2 && i < fMaxNofSamples-2 )
1017 dev[i] = -0.2*fHitMap2->GetSignal( z,i-2 )
1018 -0.1*fHitMap2->GetSignal( z,i-1 )
1019 +0.1*fHitMap2->GetSignal( z,i+1 )
1020 +0.2*fHitMap2->GetSignal( z,i+2 );
1021 }
50d05d7b 1022
aacedc3e 1023 // add crosstalk contribution to neibourg anodes
1024 for( Int_t i=tstart; i<tstop; i++ ) {
1025 Int_t anode = z - 1;
1026 Int_t i1 = (Int_t)((i-tstart)*.61+tstart+0.5); //
1027 Float_t ctktmp = -dev[i1] * 0.25;
1028 if( anode > 0 ) {
1029 ctk[anode*fMaxNofSamples+i] += ctktmp;
1030 }
1031 anode = z + 1;
1032 if( anode < fNofMaps ) {
1033 ctk[anode*fMaxNofSamples+i] += ctktmp;
1034 }
1035 }
1036 delete [] dev;
50d05d7b 1037
aacedc3e 1038 } // if( nTsteps > 2 )
1039 on = kFALSE;
1040 } // if( on == kTRUE )
1041 } // else
1042 }
3d2c9d72 1043 }
50d05d7b 1044
aacedc3e 1045 for( Int_t a=0; a<fNofMaps; a++ )
1046 for( Int_t t=0; t<fMaxNofSamples; t++ ) {
1047 Float_t signal = fHitMap2->GetSignal(a,t)+ctk[a*fMaxNofSamples+t];
1048 fHitMap2->SetHit( a, t, signal );
1049 }
1050
1051 delete [] ctk;
50d05d7b 1052}
8a33ae9e 1053//______________________________________________________________________
aacedc3e 1054void AliITSsimulationSDD::GetAnodeBaseline(Int_t i,Double_t &baseline,
8ba39da9 1055 Double_t &noise) const{
aacedc3e 1056 // Returns the Baseline for a particular anode.
1057 baseline = fBaseline[i];
1058 noise = fNoise[i];
b0f5e3fc 1059}
8a33ae9e 1060//______________________________________________________________________
b0f5e3fc 1061void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl,
1062 Int_t &th){
aacedc3e 1063 // Returns the compression alogirthm parameters
1064 Int_t size = fD.GetSize();
1065 if (size > 2 ) {
1066 db=fD[i]; tl=fT1[i]; th=fT2[i];
8a33ae9e 1067 } else {
aacedc3e 1068 if (size <= 2 && i>=fNofMaps/2) {
1069 db=fD[1]; tl=fT1[1]; th=fT2[1];
1070 } else {
1071 db=fD[0]; tl=fT1[0]; th=fT2[0];
1072 } // end if size <=2 && i>=fNofMaps/2
1073 } // end if size >2
b0f5e3fc 1074}
8a33ae9e 1075//______________________________________________________________________
b0f5e3fc 1076void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl){
aacedc3e 1077 // returns the compression alogirthm parameters
1078 Int_t size = fD.GetSize();
1079
1080 if (size > 2 ) {
1081 db=fD[i]; tl=fT1[i];
8a33ae9e 1082 } else {
aacedc3e 1083 if (size <= 2 && i>=fNofMaps/2) {
1084 db=fD[1]; tl=fT1[1];
1085 } else {
1086 db=fD[0]; tl=fT1[0];
1087 } // end if size <=2 && i>=fNofMaps/2
1088 // Warning("CompressionParam",
1089 // "Size= %d . Values i=%d ; db= %d ; tl= %d",
1090 // size,i,db,tl);
1091 } // end if size > 2
b0f5e3fc 1092}
8a33ae9e 1093//______________________________________________________________________
b0f5e3fc 1094void AliITSsimulationSDD::SetCompressParam(){
aacedc3e 1095 // Sets the compression alogirthm parameters
1096 Int_t cp[8],i;
8ba39da9 1097 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
aacedc3e 1098
8ba39da9 1099 res->GiveCompressParam(cp);
aacedc3e 1100 for (i=0; i<2; i++) {
1101 fD[i] = cp[i];
1102 fT1[i] = cp[i+2];
1103 fT2[i] = cp[i+4];
1104 fTol[i] = cp[i+6];
1105 } // end for i
b0f5e3fc 1106}
8a33ae9e 1107//______________________________________________________________________
b0f5e3fc 1108void AliITSsimulationSDD::ReadBaseline(){
aacedc3e 1109 // read baseline and noise from file - either a .root file and in this
1110 // case data should be organised in a tree with one entry for each
1111 // module => reading should be done accordingly
1112 // or a classic file and do smth. like this:
1113 // Read baselines and noise for SDD
1114
1115 Int_t na,pos;
1116 Float_t bl,n;
1117 char input[100], base[100], param[100];
1118 char *filtmp;
8ba39da9 1119 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1120 res->Filenames(input,base,param);
aacedc3e 1121 fFileName=base;
1122 //
1123 filtmp = gSystem->ExpandPathName(fFileName.Data());
1124 FILE *bline = fopen(filtmp,"r");
1125 na = 0;
1126
1127 if(bline) {
1128 while(fscanf(bline,"%d %f %f",&pos, &bl, &n) != EOF) {
1129 if (pos != na+1) {
1130 Error("ReadBaseline","Anode number not in increasing order!",
1131 filtmp);
1132 exit(1);
1133 } // end if pos != na+1
1134 fBaseline[na]=bl;
1135 fNoise[na]=n;
1136 na++;
1137 } // end while
1138 } else {
1139 Error("ReadBaseline"," THE BASELINE FILE %s DOES NOT EXIST !",filtmp);
1140 exit(1);
1141 } // end if(bline)
1142
1143 fclose(bline);
1144 delete [] filtmp;
b0f5e3fc 1145}
8a33ae9e 1146//______________________________________________________________________
1147Int_t AliITSsimulationSDD::Convert10to8(Int_t signal) const {
aacedc3e 1148 // To the 10 to 8 bit lossive compression.
1149 // code from Davide C. and Albert W.
1150
1151 if (signal < 128) return signal;
1152 if (signal < 256) return (128+((signal-128)>>1));
1153 if (signal < 512) return (192+((signal-256)>>3));
1154 if (signal < 1024) return (224+((signal-512)>>4));
1155 return 0;
b0f5e3fc 1156}
50d05d7b 1157/*
8a33ae9e 1158//______________________________________________________________________
b0f5e3fc 1159AliITSMap* AliITSsimulationSDD::HitMap(Int_t i){
aacedc3e 1160 //Return the correct map.
8a33ae9e 1161
aacedc3e 1162 return ((i==0)? fHitMap1 : fHitMap2);
3d2c9d72 1163}
1164*/
8a33ae9e 1165//______________________________________________________________________
e8189707 1166void AliITSsimulationSDD::ZeroSuppression(const char *option) {
aacedc3e 1167 // perform the zero suppresion
1168
1169 if (strstr(option,"2D")) {
1170 //Init2D(); // activate if param change module by module
1171 Compress2D();
1172 } else if (strstr(option,"1D")) {
1173 //Init1D(); // activate if param change module by module
1174 Compress1D();
1175 } else StoreAllDigits();
b0f5e3fc 1176}
8a33ae9e 1177//______________________________________________________________________
b0f5e3fc 1178void AliITSsimulationSDD::Init2D(){
aacedc3e 1179 // read in and prepare arrays: fD, fT1, fT2
1180 // savemu[nanodes], savesigma[nanodes]
1181 // read baseline and noise from file - either a .root file and in this
1182 // case data should be organised in a tree with one entry for each
1183 // module => reading should be done accordingly
1184 // or a classic file and do smth. like this ( code from Davide C. and
1185 // Albert W.) :
1186 // Read 2D zero-suppression parameters for SDD
1187
1188 if (!strstr(fParam.Data(),"file")) return;
1189
1190 Int_t na,pos,tempTh;
1191 Float_t mu,sigma;
1192 Float_t *savemu = new Float_t [fNofMaps];
1193 Float_t *savesigma = new Float_t [fNofMaps];
1194 char input[100],basel[100],par[100];
1195 char *filtmp;
1196 Double_t tmp1,tmp2;
8ba39da9 1197 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1198
1199 res->Thresholds(tmp1,tmp2);
aacedc3e 1200 Int_t minval = static_cast<Int_t>(tmp1);
1201
8ba39da9 1202 res->Filenames(input,basel,par);
aacedc3e 1203 fFileName = par;
1204 //
1205 filtmp = gSystem->ExpandPathName(fFileName.Data());
1206 FILE *param = fopen(filtmp,"r");
1207 na = 0;
1208
1209 if(param) {
1210 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1211 if (pos != na+1) {
1212 Error("Init2D","Anode number not in increasing order!",filtmp);
1213 exit(1);
1214 } // end if pos != na+1
1215 savemu[na] = mu;
1216 savesigma[na] = sigma;
1217 if ((2.*sigma) < mu) {
1218 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1219 mu = 2.0 * sigma;
1220 } else fD[na] = 0;
1221 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1222 if (tempTh < 0) tempTh=0;
1223 fT1[na] = tempTh;
1224 tempTh = (Int_t)floor(mu+3.0*sigma+0.5) - minval;
1225 if (tempTh < 0) tempTh=0;
1226 fT2[na] = tempTh;
1227 na++;
1228 } // end while
1229 } else {
1230 Error("Init2D","THE FILE %s DOES NOT EXIST !",filtmp);
1231 exit(1);
1232 } // end if(param)
1233
1234 fclose(param);
1235 delete [] filtmp;
1236 delete [] savemu;
1237 delete [] savesigma;
8a33ae9e 1238}
1239//______________________________________________________________________
b0f5e3fc 1240void AliITSsimulationSDD::Compress2D(){
aacedc3e 1241 // simple ITS cluster finder -- online zero-suppression conditions
1242
1243 Int_t db,tl,th;
1244 Double_t tmp1,tmp2;
8ba39da9 1245 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1246
1247 res->Thresholds(tmp1,tmp2);
aacedc3e 1248 Int_t minval = static_cast<Int_t>(tmp1);
8ba39da9 1249 Bool_t write = res->OutputOption();
1250 Bool_t do10to8 = res->Do10to8();
aacedc3e 1251 Int_t nz, nl, nh, low, i, j;
1252
1253 for (i=0; i<fNofMaps; i++) {
1254 CompressionParam(i,db,tl,th);
1255 nz = 0;
1256 nl = 0;
1257 nh = 0;
1258 low = 0;
1259 for (j=0; j<fMaxNofSamples; j++) {
1260 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1261 signal -= db; // if baseline eq. is done here
1262 if (signal <= 0) {nz++; continue;}
1263 if ((signal - tl) < minval) low++;
1264 if ((signal - th) >= minval) {
1265 nh++;
1266 Bool_t cond=kTRUE;
1267 FindCluster(i,j,signal,minval,cond);
1268 if(cond && j &&
1269 ((TMath::Abs(fHitMap2->GetSignal(i,j-1))-th)>=minval)){
1270 if(do10to8) signal = Convert10to8(signal);
1271 AddDigit(i,j,signal);
1272 } // end if cond&&j&&()
1273 } else if ((signal - tl) >= minval) nl++;
1274 } // end for j loop time samples
1275 if (write) TreeB()->Fill(nz,nl,nh,low,i+1);
1276 } //end for i loop anodes
1277
1278 char hname[30];
1279 if (write) {
1280 sprintf(hname,"TNtuple%d_%d",fModule,fEvent);
1281 TreeB()->Write(hname);
1282 // reset tree
1283 TreeB()->Reset();
1284 } // end if write
8a33ae9e 1285}
1286//______________________________________________________________________
b0f5e3fc 1287void AliITSsimulationSDD::FindCluster(Int_t i,Int_t j,Int_t signal,
ece86d9a 1288 Int_t minval,Bool_t &cond){
aacedc3e 1289 // Find clusters according to the online 2D zero-suppression algorithm
8ba39da9 1290 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1291 AliITSsegmentationSDD* seg = (AliITSsegmentationSDD*)GetSegmentationModel(1);
1292
1293 Bool_t do10to8 = res->Do10to8();
aacedc3e 1294 Bool_t high = kFALSE;
1295
1296 fHitMap2->FlagHit(i,j);
1297 //
1298 // check the online zero-suppression conditions
1299 //
1300 const Int_t kMaxNeighbours = 4;
1301 Int_t nn;
1302 Int_t dbx,tlx,thx;
1303 Int_t xList[kMaxNeighbours], yList[kMaxNeighbours];
8ba39da9 1304 seg->Neighbours(i,j,&nn,xList,yList);
aacedc3e 1305 Int_t in,ix,iy,qns;
1306 for (in=0; in<nn; in++) {
1307 ix=xList[in];
1308 iy=yList[in];
1309 if (fHitMap2->TestHit(ix,iy)==kUnused) {
1310 CompressionParam(ix,dbx,tlx,thx);
1311 Int_t qn = (Int_t)(fHitMap2->GetSignal(ix,iy));
1312 qn -= dbx; // if baseline eq. is done here
1313 if ((qn-tlx) < minval) {
1314 fHitMap2->FlagHit(ix,iy);
1315 continue;
1316 } else {
1317 if ((qn - thx) >= minval) high=kTRUE;
1318 if (cond) {
1319 if(do10to8) signal = Convert10to8(signal);
1320 AddDigit(i,j,signal);
1321 } // end if cond
1322 if(do10to8) qns = Convert10to8(qn);
1323 else qns=qn;
1324 if (!high) AddDigit(ix,iy,qns);
1325 cond=kFALSE;
1326 if(!high) fHitMap2->FlagHit(ix,iy);
1327 } // end if qn-tlx < minval
1328 } // end if TestHit
1329 } // end for in loop over neighbours
b0f5e3fc 1330}
8a33ae9e 1331//______________________________________________________________________
b0f5e3fc 1332void AliITSsimulationSDD::Init1D(){
aacedc3e 1333 // this is just a copy-paste of input taken from 2D algo
1334 // Torino people should give input
1335 // Read 1D zero-suppression parameters for SDD
1336
1337 if (!strstr(fParam.Data(),"file")) return;
1338
1339 Int_t na,pos,tempTh;
1340 Float_t mu,sigma;
1341 Float_t *savemu = new Float_t [fNofMaps];
1342 Float_t *savesigma = new Float_t [fNofMaps];
1343 char input[100],basel[100],par[100];
1344 char *filtmp;
1345 Double_t tmp1,tmp2;
8ba39da9 1346 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1347
1348 res->Thresholds(tmp1,tmp2);
aacedc3e 1349 Int_t minval = static_cast<Int_t>(tmp1);
1350
8ba39da9 1351 res->Filenames(input,basel,par);
aacedc3e 1352 fFileName=par;
1353
1354 // set first the disable and tol param
1355 SetCompressParam();
1356 //
1357 filtmp = gSystem->ExpandPathName(fFileName.Data());
1358 FILE *param = fopen(filtmp,"r");
1359 na = 0;
1360
1361 if (param) {
1362 fscanf(param,"%d %d %d %d ", &fT2[0], &fT2[1], &fTol[0], &fTol[1]);
1363 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1364 if (pos != na+1) {
1365 Error("Init1D","Anode number not in increasing order!",filtmp);
1366 exit(1);
1367 } // end if pos != na+1
1368 savemu[na]=mu;
1369 savesigma[na]=sigma;
1370 if ((2.*sigma) < mu) {
1371 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1372 mu = 2.0 * sigma;
1373 } else fD[na] = 0;
1374 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1375 if (tempTh < 0) tempTh=0;
1376 fT1[na] = tempTh;
1377 na++;
1378 } // end while
1379 } else {
1380 Error("Init1D","THE FILE %s DOES NOT EXIST !",filtmp);
1381 exit(1);
1382 } // end if(param)
1383
1384 fclose(param);
1385 delete [] filtmp;
1386 delete [] savemu;
1387 delete [] savesigma;
8a33ae9e 1388}
1389//______________________________________________________________________
b0f5e3fc 1390void AliITSsimulationSDD::Compress1D(){
aacedc3e 1391 // 1D zero-suppression algorithm (from Gianluca A.)
1392 Int_t dis,tol,thres,decr,diff;
1393 UChar_t *str=fStream->Stream();
1394 Int_t counter=0;
8ba39da9 1395 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1396
1397 Bool_t do10to8=res->Do10to8();
aacedc3e 1398 Int_t last=0;
1399 Int_t k,i,j;
1400
1401 for (k=0; k<2; k++) {
1402 tol = Tolerance(k);
1403 dis = Disable(k);
1404 for (i=0; i<fNofMaps/2; i++) {
1405 Bool_t firstSignal=kTRUE;
1406 Int_t idx=i+k*fNofMaps/2;
1407 if( !fAnodeFire[idx] ) continue;
1408 CompressionParam(idx,decr,thres);
1409
1410 for (j=0; j<fMaxNofSamples; j++) {
1411 Int_t signal=(Int_t)(fHitMap2->GetSignal(idx,j));
1412 signal -= decr; // if baseline eq.
1413 if(do10to8) signal = Convert10to8(signal);
1414 if (signal <= thres) {
1415 signal=0;
1416 diff=128;
1417 last=0;
1418 // write diff in the buffer for HuffT
1419 str[counter]=(UChar_t)diff;
1420 counter++;
1421 continue;
1422 } // end if signal <= thres
1423 diff=signal-last;
1424 if (diff > 127) diff=127;
1425 if (diff < -128) diff=-128;
1426 if (signal < dis) {
1427 // tol has changed to 8 possible cases ? - one can write
1428 // this if(TMath::Abs(diff)<tol) ... else ...
1429 if(TMath::Abs(diff)<tol) diff=0;
1430 // or keep it as it was before
1431 AddDigit(idx,j,last+diff);
1432 } else {
1433 AddDigit(idx,j,signal);
1434 } // end if singal < dis
1435 diff += 128;
1436 // write diff in the buffer used to compute Huffman tables
1437 if (firstSignal) str[counter]=(UChar_t)signal;
1438 else str[counter]=(UChar_t)diff;
1439 counter++;
1440 last=signal;
1441 firstSignal=kFALSE;
1442 } // end for j loop time samples
1443 } // end for i loop anodes one half of detector
1444 } // end for k
b0f5e3fc 1445
1446 // check
aacedc3e 1447 fStream->CheckCount(counter);
b0f5e3fc 1448
aacedc3e 1449 // open file and write out the stream of diff's
1450 static Bool_t open=kTRUE;
1451 static TFile *outFile;
8ba39da9 1452 Bool_t write = res->OutputOption();
aacedc3e 1453 TDirectory *savedir = gDirectory;
b0f5e3fc 1454
aacedc3e 1455 if (write ) {
1456 if(open) {
1457 SetFileName("stream.root");
1458 cout<<"filename "<<fFileName<<endl;
1459 outFile=new TFile(fFileName,"recreate");
1460 cout<<"I have opened "<<fFileName<<" file "<<endl;
1461 } // end if open
1462 open = kFALSE;
1463 outFile->cd();
1464 fStream->Write();
1465 } // endif write
1466
1467 fStream->ClearStream();
1468
1469 // back to galice.root file
1470 if(savedir) savedir->cd();
8a33ae9e 1471}
1472//______________________________________________________________________
b0f5e3fc 1473void AliITSsimulationSDD::StoreAllDigits(){
aacedc3e 1474 // if non-zero-suppressed data
8ba39da9 1475 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
1476
1477 Bool_t do10to8 = res->Do10to8();
aacedc3e 1478 Int_t i, j, digits[3];
1479
1480 for (i=0; i<fNofMaps; i++) {
1481 for (j=0; j<fMaxNofSamples; j++) {
1482 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1483 if(do10to8) signal = Convert10to8(signal);
1484 digits[0] = i;
1485 digits[1] = j;
1486 digits[2] = signal;
1487 fITS->AddRealDigit(1,digits);
1488 } // end for j
1489 } // end for i
b0f5e3fc 1490}
8a33ae9e 1491//______________________________________________________________________
ece86d9a 1492void AliITSsimulationSDD::CreateHistograms(Int_t scale){
aacedc3e 1493 // Creates histograms of maps for debugging
1494 Int_t i;
1495
1496 fHis=new TObjArray(fNofMaps);
1497 for (i=0;i<fNofMaps;i++) {
1498 TString sddName("sdd_");
1499 Char_t candNum[4];
1500 sprintf(candNum,"%d",i+1);
1501 sddName.Append(candNum);
1502 fHis->AddAt(new TH1F(sddName.Data(),"SDD maps",scale*fMaxNofSamples,
1503 0.,(Float_t) scale*fMaxNofSamples), i);
1504 } // end for i
b0f5e3fc 1505}
8a33ae9e 1506//______________________________________________________________________
ece86d9a 1507void AliITSsimulationSDD::FillHistograms(){
aacedc3e 1508 // fill 1D histograms from map
8a33ae9e 1509
aacedc3e 1510 if (!fHis) return;
8a33ae9e 1511
aacedc3e 1512 for( Int_t i=0; i<fNofMaps; i++) {
1513 TH1F *hist =(TH1F *)fHis->UncheckedAt(i);
1514 Int_t nsamples = hist->GetNbinsX();
1515 for( Int_t j=0; j<nsamples; j++) {
1516 Double_t signal=fHitMap2->GetSignal(i,j);
1517 hist->Fill((Float_t)j,signal);
1518 } // end for j
1519 } // end for i
ece86d9a 1520}
8a33ae9e 1521//______________________________________________________________________
b0f5e3fc 1522void AliITSsimulationSDD::ResetHistograms(){
aacedc3e 1523 // Reset histograms for this detector
1524 Int_t i;
8a33ae9e 1525
aacedc3e 1526 for (i=0;i<fNofMaps;i++ ) {
1527 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
1528 } // end for i
b0f5e3fc 1529}
8a33ae9e 1530//______________________________________________________________________
b0f5e3fc 1531TH1F *AliITSsimulationSDD::GetAnode(Int_t wing, Int_t anode) {
aacedc3e 1532 // Fills a histogram from a give anode.
8a33ae9e 1533
aacedc3e 1534 if (!fHis) return 0;
8a33ae9e 1535
aacedc3e 1536 if(wing <=0 || wing > 2) {
1537 Warning("GetAnode","Wrong wing number: %d",wing);
1538 return NULL;
1539 } // end if wing <=0 || wing >2
1540 if(anode <=0 || anode > fNofMaps/2) {
1541 Warning("GetAnode","Wrong anode number: %d",anode);
1542 return NULL;
1543 } // end if ampde <=0 || andoe > fNofMaps/2
8a33ae9e 1544
aacedc3e 1545 Int_t index = (wing-1)*fNofMaps/2 + anode-1;
1546 return (TH1F*)(fHis->At(index));
b0f5e3fc 1547}
8a33ae9e 1548//______________________________________________________________________
b0f5e3fc 1549void AliITSsimulationSDD::WriteToFile(TFile *hfile) {
aacedc3e 1550 // Writes the histograms to a file
b0f5e3fc 1551
aacedc3e 1552 if (!fHis) return;
8a33ae9e 1553
aacedc3e 1554 hfile->cd();
1555 Int_t i;
1556 for(i=0; i<fNofMaps; i++) fHis->At(i)->Write(); //fAdcs[i]->Write();
1557 return;
b0f5e3fc 1558}
8a33ae9e 1559//______________________________________________________________________
ece86d9a 1560Float_t AliITSsimulationSDD::GetNoise() {
aacedc3e 1561 // Returns the noise value
1562 //Bool_t do10to8=GetResp()->Do10to8();
1563 //noise will always be in the liniar part of the signal
1564 Int_t decr;
1565 Int_t threshold = fT1[0];
1566 char opt1[20], opt2[20];
8ba39da9 1567 AliITSresponseSDD* res = (AliITSresponseSDD*)GetResponseModel(fDetType->GetITSgeom()->GetStartSDD());
aacedc3e 1568
8ba39da9 1569 res->ParamOptions(opt1,opt2);
aacedc3e 1570 fParam=opt2;
1571 char *same = strstr(opt1,"same");
1572 Double_t noise,baseline;
1573 if (same) {
8ba39da9 1574 res->GetNoiseParam(noise,baseline);
aacedc3e 1575 } else {
1576 static Bool_t readfile=kTRUE;
1577 //read baseline and noise from file
1578 if (readfile) ReadBaseline();
1579 readfile=kFALSE;
1580 } // end if same
1581
1582 TCanvas *c2 = (TCanvas*)gROOT->GetListOfCanvases()->FindObject("c2");
1583 if(c2) delete c2->GetPrimitive("noisehist");
1584 if(c2) delete c2->GetPrimitive("anode");
1585 else c2=new TCanvas("c2");
1586 c2->cd();
1587 c2->SetFillColor(0);
1588
1589 TH1F *noisehist = new TH1F("noisehist","noise",100,0.,(float)2*threshold);
1590 TH1F *anode = new TH1F("anode","Anode Projection",fMaxNofSamples,0.,
1591 (float)fMaxNofSamples);
1592 Int_t i,k;
1593 for (i=0;i<fNofMaps;i++) {
1594 CompressionParam(i,decr,threshold);
1595 if (!same) GetAnodeBaseline(i,baseline,noise);
1596 anode->Reset();
1597 for (k=0;k<fMaxNofSamples;k++) {
1598 Float_t signal=(Float_t)fHitMap2->GetSignal(i,k);
1599 //if (signal <= (float)threshold) noisehist->Fill(signal-baseline);
1600 if (signal <= (float)(threshold+decr)) noisehist->Fill(signal);
1601 anode->Fill((float)k,signal);
1602 } // end for k
1603 anode->Draw();
1604 c2->Update();
1605 } // end for i
1606 TF1 *gnoise = new TF1("gnoise","gaus",0.,threshold);
1607 noisehist->Fit("gnoise","RQ");
1608 noisehist->Draw();
ece86d9a 1609 c2->Update();
aacedc3e 1610 Float_t mnoise = gnoise->GetParameter(1);
1611 cout << "mnoise : " << mnoise << endl;
1612 Float_t rnoise = gnoise->GetParameter(2);
1613 cout << "rnoise : " << rnoise << endl;
1614 delete noisehist;
1615 return rnoise;
50d05d7b 1616}
1617//______________________________________________________________________
1618void AliITSsimulationSDD::WriteSDigits(){
aacedc3e 1619 // Fills the Summable digits Tree
1620 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
1621
1622 for( Int_t i=0; i<fNofMaps; i++ ) {
1623 if( !fAnodeFire[i] ) continue;
1624 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
1625 Double_t sig = fHitMap2->GetSignal( i, j );
1626 if( sig > 0.2 ) {
1627 Int_t jdx = j*fScaleSize;
1628 Int_t index = fpList->GetHitIndex( i, j );
1629 AliITSpListItem pItemTmp2( fModule, index, 0. );
1630 // put the fScaleSize analog digits in only one
1631 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
1632 AliITSpListItem *pItemTmp = fpList->GetpListItem(i,jdx+ik);
1633 if( pItemTmp == 0 ) continue;
1634 pItemTmp2.Add( pItemTmp );
1635 }
1636 pItemTmp2.AddSignalAfterElect( fModule, index, sig );
1637 pItemTmp2.AddNoise(fModule,index,fHitNoiMap2->GetSignal(i,j));
1638 aliITS->AddSumDigit( pItemTmp2 );
1639 } // end if (sig > 0.2)
1640 }
48058160 1641 }
aacedc3e 1642 return;
b0f5e3fc 1643}
8a33ae9e 1644//______________________________________________________________________
d2f55a22 1645void AliITSsimulationSDD::PrintStatus() const {
aacedc3e 1646 // Print SDD simulation Parameters
1647
1648 cout << "**************************************************" << endl;
1649 cout << " Silicon Drift Detector Simulation Parameters " << endl;
1650 cout << "**************************************************" << endl;
1651 cout << "Flag for Perpendicular tracks: " << (Int_t) fFlag << endl;
1652 cout << "Flag for noise checking: " << (Int_t) fCheckNoise << endl;
1653 cout << "Flag to switch off electronics: " << (Int_t) fDoFFT << endl;
1654 cout << "Number pf Anodes used: " << fNofMaps << endl;
1655 cout << "Number of Time Samples: " << fMaxNofSamples << endl;
1656 cout << "Scale size factor: " << fScaleSize << endl;
1657 cout << "**************************************************" << endl;
44a312c3 1658}