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Accomodation for the new coordinate system: oposite sign of the track curvature ...
[u/mrichter/AliRoot.git] / ITS / AliITSsimulationSDD.cxx
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b0f5e3fc 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
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
94de3818 23#include <TSystem.h>
24#include <TROOT.h>
608f25d8 25#include <TStopwatch.h>
ece86d9a 26#include <TCanvas.h>
27#include <TF1.h>
28#include <TRandom.h>
1ca7869b 29#include <TH1.h>
30#include <TFile.h>
31#include <TVector.h>
32#include <TArrayI.h>
33#include <TArrayF.h>
ece86d9a 34
b0f5e3fc 35#include "AliRun.h"
e8189707 36#include "AliITS.h"
ece86d9a 37#include "AliITShit.h"
e869281d 38#include "AliITSdigitSDD.h"
39#include "AliITSdigitSPD.h"
ece86d9a 40#include "AliITSmodule.h"
c7a4dac0 41#include "AliITSpList.h"
e8189707 42#include "AliITSMapA1.h"
43#include "AliITSMapA2.h"
e8189707 44#include "AliITSetfSDD.h"
45#include "AliITSRawData.h"
b0f5e3fc 46#include "AliITSHuffman.h"
50d05d7b 47#include "AliITSgeom.h"
ece86d9a 48#include "AliITSsegmentation.h"
49#include "AliITSresponse.h"
c7a4dac0 50#include "AliITSsegmentationSDD.h"
51#include "AliITSresponseSDD.h"
1ca7869b 52#include "AliITSsimulationSDD.h"
b0f5e3fc 53
b0f5e3fc 54ClassImp(AliITSsimulationSDD)
55////////////////////////////////////////////////////////////////////////
56// Version: 0
57// Written by Piergiorgio Cerello
58// November 23 1999
59//
60// AliITSsimulationSDD is the simulation of SDDs.
61 //
62//Begin_Html
63/*
64<img src="picts/ITS/AliITShit_Class_Diagram.gif">
65</pre>
66<br clear=left>
67<font size=+2 color=red>
68<p>This show the relasionships between the ITS hit class and the rest of Aliroot.
69</font>
70<pre>
71*/
72//End_Html
8a33ae9e 73//______________________________________________________________________
b0f5e3fc 74Int_t power(Int_t b, Int_t e) {
8a33ae9e 75 // compute b to the e power, where both b and e are Int_ts.
76 Int_t power = 1,i;
b0f5e3fc 77
8a33ae9e 78 for(i=0; i<e; i++) power *= b;
79 return power;
80}
81//______________________________________________________________________
b0f5e3fc 82void FastFourierTransform(AliITSetfSDD *alisddetf,Double_t *real,
83 Double_t *imag,Int_t direction) {
8a33ae9e 84 // Do a Fast Fourier Transform
8a33ae9e 85
86 Int_t samples = alisddetf->GetSamples();
87 Int_t l = (Int_t) ((log((Float_t) samples)/log(2.))+0.5);
88 Int_t m1 = samples;
89 Int_t m = samples/2;
90 Int_t m2 = samples/m1;
91 Int_t i,j,k;
92 for(i=1; i<=l; i++) {
50d05d7b 93 for(j=0; j<samples; j += m1) {
94 Int_t p = 0;
95 for(k=j; k<= j+m-1; k++) {
96 Double_t wsr = alisddetf->GetWeightReal(p);
97 Double_t wsi = alisddetf->GetWeightImag(p);
98 if(direction == -1) wsi = -wsi;
99 Double_t xr = *(real+k+m);
100 Double_t xi = *(imag+k+m);
101 *(real+k+m) = wsr*(*(real+k)-xr) - wsi*(*(imag+k)-xi);
102 *(imag+k+m) = wsr*(*(imag+k)-xi) + wsi*(*(real+k)-xr);
103 *(real+k) += xr;
104 *(imag+k) += xi;
105 p += m2;
106 } // end for k
107 } // end for j
108 m1 = m;
109 m /= 2;
110 m2 += m2;
8a33ae9e 111 } // end for i
b0f5e3fc 112
8a33ae9e 113 for(j=0; j<samples; j++) {
50d05d7b 114 Int_t j1 = j;
115 Int_t p = 0;
116 Int_t i1;
117 for(i1=1; i1<=l; i1++) {
118 Int_t j2 = j1;
119 j1 /= 2;
120 p = p + p + j2 - j1 - j1;
121 } // end for i1
122 if(p >= j) {
123 Double_t xr = *(real+j);
124 Double_t xi = *(imag+j);
125 *(real+j) = *(real+p);
126 *(imag+j) = *(imag+p);
127 *(real+p) = xr;
128 *(imag+p) = xi;
129 } // end if p>=j
8a33ae9e 130 } // end for j
131 if(direction == -1) {
50d05d7b 132 for(i=0; i<samples; i++) {
133 *(real+i) /= samples;
134 *(imag+i) /= samples;
135 } // end for i
8a33ae9e 136 } // end if direction == -1
50d05d7b 137 return;
b0f5e3fc 138}
8a33ae9e 139//______________________________________________________________________
c135f70d 140AliITSsimulationSDD::AliITSsimulationSDD() {
8a33ae9e 141 // Default constructor
142
143 fResponse = 0;
144 fSegmentation = 0;
145 fHis = 0;
50d05d7b 146// fpList = 0;
8a33ae9e 147 fHitMap2 = 0;
48058160 148 fHitSigMap2 = 0;
149 fHitNoiMap2 = 0;
8a33ae9e 150 fElectronics = 0;
151 fStream = 0;
152 fInZR = 0;
153 fInZI = 0;
154 fOutZR = 0;
155 fOutZI = 0;
156 fNofMaps = 0;
157 fMaxNofSamples = 0;
158 fITS = 0;
8604b270 159 fTreeB = 0;
43217ad9 160 fAnodeFire = 0;
8a33ae9e 161 SetScaleFourier();
162 SetPerpendTracksFlag();
50d05d7b 163 SetCrosstalkFlag();
8a33ae9e 164 SetDoFFT();
165 SetCheckNoise();
b0f5e3fc 166}
8a33ae9e 167//______________________________________________________________________
ac74f489 168AliITSsimulationSDD::AliITSsimulationSDD(AliITSsimulationSDD &source) :
169 AliITSsimulation(source){
8a33ae9e 170 // Copy constructor to satify Coding roules only.
171
172 if(this==&source) return;
c7a4dac0 173 Error("AliITSsimulationSSD","Not allowed to make a copy of "
50d05d7b 174 "AliITSsimulationSDD Using default creater instead");
8a33ae9e 175 AliITSsimulationSDD();
b0f5e3fc 176}
8a33ae9e 177//______________________________________________________________________
c7a4dac0 178AliITSsimulationSDD& AliITSsimulationSDD::operator=(AliITSsimulationSDD &src){
8a33ae9e 179 // Assignment operator to satify Coding roules only.
180
c7a4dac0 181 if(this==&src) return *this;
182 Error("AliITSsimulationSSD","Not allowed to make a = with "
50d05d7b 183 "AliITSsimulationSDD Using default creater instead");
8a33ae9e 184 return *this ;
b0f5e3fc 185}
8a33ae9e 186//______________________________________________________________________
c7a4dac0 187AliITSsimulationSDD::AliITSsimulationSDD(AliITSsegmentation *seg,
50d05d7b 188 AliITSresponse *resp){
c7a4dac0 189 // Standard Constructor
190
c7a4dac0 191 fResponse = 0;
192 fSegmentation = 0;
193 fHis = 0;
50d05d7b 194// fpList = 0;
c7a4dac0 195 fHitMap2 = 0;
48058160 196 fHitSigMap2 = 0;
197 fHitNoiMap2 = 0;
c7a4dac0 198 fElectronics = 0;
199 fStream = 0;
200 fInZR = 0;
201 fInZI = 0;
202 fOutZR = 0;
203 fOutZI = 0;
204 fNofMaps = 0;
205 fMaxNofSamples = 0;
206 fITS = 0;
207 fTreeB = 0;
c135f70d 208 SetDebug(kFALSE);
c7a4dac0 209
210 Init((AliITSsegmentationSDD*)seg,(AliITSresponseSDD*)resp);
211}
212//______________________________________________________________________
213void AliITSsimulationSDD::Init(AliITSsegmentationSDD *seg,
50d05d7b 214 AliITSresponseSDD *resp){
38867c90 215 // Standard Constructor
ece86d9a 216
38867c90 217 fResponse = resp;
218 fSegmentation = seg;
219 SetScaleFourier();
220 SetPerpendTracksFlag();
50d05d7b 221 SetCrosstalkFlag();
38867c90 222 SetDoFFT();
223 SetCheckNoise();
b0f5e3fc 224
50d05d7b 225 fpList = new AliITSpList( fSegmentation->Npz(),
226 fScaleSize*fSegmentation->Npx() );
48058160 227 fHitSigMap2 = new AliITSMapA2(fSegmentation,fScaleSize,1);
228 fHitNoiMap2 = new AliITSMapA2(fSegmentation,fScaleSize,1);
229 fHitMap2 = fHitSigMap2;
b0f5e3fc 230
8a33ae9e 231 fNofMaps = fSegmentation->Npz();
232 fMaxNofSamples = fSegmentation->Npx();
43217ad9 233 fAnodeFire = new Bool_t [fNofMaps];
234
38867c90 235 Float_t sddLength = fSegmentation->Dx();
8a33ae9e 236 Float_t sddWidth = fSegmentation->Dz();
b0f5e3fc 237
8a33ae9e 238 Int_t dummy = 0;
38867c90 239 Float_t anodePitch = fSegmentation->Dpz(dummy);
8a33ae9e 240 Double_t timeStep = (Double_t)fSegmentation->Dpx(dummy);
241 Float_t driftSpeed = fResponse->DriftSpeed();
b0f5e3fc 242
38867c90 243 if(anodePitch*(fNofMaps/2) > sddWidth) {
50d05d7b 244 Warning("AliITSsimulationSDD",
245 "Too many anodes %d or too big pitch %f \n",
246 fNofMaps/2,anodePitch);
38867c90 247 } // end if
b0f5e3fc 248
38867c90 249 if(timeStep*fMaxNofSamples < sddLength/driftSpeed) {
50d05d7b 250 Error("AliITSsimulationSDD",
251 "Time Interval > Allowed Time Interval: exit\n");
252 return;
38867c90 253 } // end if
b0f5e3fc 254
38867c90 255 fElectronics = new AliITSetfSDD(timeStep/fScaleSize,
50d05d7b 256 fResponse->Electronics());
b0f5e3fc 257
38867c90 258 char opt1[20], opt2[20];
259 fResponse->ParamOptions(opt1,opt2);
8a33ae9e 260 fParam = opt2;
38867c90 261 char *same = strstr(opt1,"same");
262 if (same) {
50d05d7b 263 fNoise.Set(0);
264 fBaseline.Set(0);
38867c90 265 } else {
50d05d7b 266 fNoise.Set(fNofMaps);
267 fBaseline.Set(fNofMaps);
38867c90 268 } // end if
b0f5e3fc 269
38867c90 270 const char *kopt=fResponse->ZeroSuppOption();
b9d0a01d 271 if (strstr(fParam.Data(),"file") ) {
50d05d7b 272 fD.Set(fNofMaps);
273 fT1.Set(fNofMaps);
274 if (strstr(kopt,"2D")) {
275 fT2.Set(fNofMaps);
b0f5e3fc 276 fTol.Set(0);
277 Init2D(); // desactivate if param change module by module
50d05d7b 278 } else if(strstr(kopt,"1D")) {
b0f5e3fc 279 fT2.Set(2);
280 fTol.Set(2);
281 Init1D(); // desactivate if param change module by module
50d05d7b 282 } // end if strstr
38867c90 283 } else {
50d05d7b 284 fD.Set(2);
285 fTol.Set(2);
286 fT1.Set(2);
287 fT2.Set(2);
288 SetCompressParam();
38867c90 289 } // end if else strstr
b0f5e3fc 290
8a33ae9e 291 Bool_t write = fResponse->OutputOption();
38867c90 292 if(write && strstr(kopt,"2D")) MakeTreeB();
b0f5e3fc 293
38867c90 294 // call here if baseline does not change by module
295 // ReadBaseline();
b0f5e3fc 296
8a33ae9e 297 fITS = (AliITS*)gAlice->GetModule("ITS");
298 Int_t size = fNofMaps*fMaxNofSamples;
299 fStream = new AliITSInStream(size);
b0f5e3fc 300
38867c90 301 fInZR = new Double_t [fScaleSize*fMaxNofSamples];
302 fInZI = new Double_t [fScaleSize*fMaxNofSamples];
303 fOutZR = new Double_t [fScaleSize*fMaxNofSamples];
304 fOutZI = new Double_t [fScaleSize*fMaxNofSamples];
5d18fa90 305
b0f5e3fc 306}
8a33ae9e 307//______________________________________________________________________
b0f5e3fc 308AliITSsimulationSDD::~AliITSsimulationSDD() {
8a33ae9e 309 // destructor
310
50d05d7b 311// delete fpList;
48058160 312 delete fHitSigMap2;
313 delete fHitNoiMap2;
8a33ae9e 314 delete fStream;
315 delete fElectronics;
316
8a33ae9e 317 fITS = 0;
318
319 if (fHis) {
50d05d7b 320 fHis->Delete();
321 delete fHis;
8a33ae9e 322 } // end if fHis
323 if(fTreeB) delete fTreeB;
324 if(fInZR) delete [] fInZR;
50d05d7b 325 if(fInZI) delete [] fInZI;
8a33ae9e 326 if(fOutZR) delete [] fOutZR;
327 if(fOutZI) delete [] fOutZI;
43217ad9 328 if(fAnodeFire) delete [] fAnodeFire;
b0f5e3fc 329}
8a33ae9e 330//______________________________________________________________________
50d05d7b 331void AliITSsimulationSDD::InitSimulationModule( Int_t module, Int_t event ) {
c7a4dac0 332 // create maps to build the lists of tracks for each summable digit
50d05d7b 333 fModule = module;
334 fEvent = event;
335 ClearMaps();
43217ad9 336 memset(fAnodeFire,0,sizeof(Bool_t)*fNofMaps);
50d05d7b 337}
338//______________________________________________________________________
339void AliITSsimulationSDD::ClearMaps() {
340 // clear maps
341 fpList->ClearMap();
48058160 342 fHitSigMap2->ClearMap();
343 fHitNoiMap2->ClearMap();
50d05d7b 344}
345//______________________________________________________________________
346void AliITSsimulationSDD::SDigitiseModule( AliITSmodule *mod, Int_t md, Int_t ev){
347 // digitize module using the "slow" detector simulator creating
348 // summable digits.
c7a4dac0 349
350 TObjArray *fHits = mod->GetHits();
351 Int_t nhits = fHits->GetEntriesFast();
50d05d7b 352 if( !nhits ) return;
c7a4dac0 353
50d05d7b 354 InitSimulationModule( md, ev );
355 HitsToAnalogDigits( mod );
48058160 356 ChargeToSignal( kFALSE ); // - Process signal without add noise
357 fHitMap2 = fHitNoiMap2; // - Swap to noise map
358 ChargeToSignal( kTRUE ); // - Process only noise
359 fHitMap2 = fHitSigMap2; // - Return to signal map
50d05d7b 360 WriteSDigits();
361 ClearMaps();
362}
363//______________________________________________________________________
48058160 364Bool_t AliITSsimulationSDD::AddSDigitsToModule( TClonesArray *pItemArray, Int_t mask ) {
50d05d7b 365 // Add Summable digits to module maps.
48058160 366 Int_t nItems = pItemArray->GetEntries();
367 Double_t maxadc = fResponse->MaxAdc();
43217ad9 368 //Bool_t sig = kFALSE;
48058160 369
50d05d7b 370 // cout << "Adding "<< nItems <<" SDigits to module " << fModule << endl;
371 for( Int_t i=0; i<nItems; i++ ) {
372 AliITSpListItem * pItem = (AliITSpListItem *)(pItemArray->At( i ));
373 if( pItem->GetModule() != fModule ) {
374 Error( "AliITSsimulationSDD",
375 "Error reading, SDigits module %d != current module %d: exit\n",
376 pItem->GetModule(), fModule );
43217ad9 377 return kFALSE;
50d05d7b 378 } // end if
48058160 379
43217ad9 380 // if(pItem->GetSignal()>0.0 ) sig = kTRUE;
381
48058160 382 fpList->AddItemTo( mask, pItem ); // Add SignalAfterElect + noise
383 AliITSpListItem * pItem2 = fpList->GetpListItem( pItem->GetIndex() );
384 Double_t sigAE = pItem2->GetSignalAfterElect();
385 if( sigAE >= maxadc ) sigAE = maxadc-1; // avoid overflow signal
386 Int_t ia;
387 Int_t it;
388 fpList->GetMapIndex( pItem->GetIndex(), ia, it );
389 fHitMap2->SetHit( ia, it, sigAE );
43217ad9 390 fAnodeFire[ia] = kTRUE;
50d05d7b 391 }
43217ad9 392 return kTRUE;
48058160 393}
50d05d7b 394//______________________________________________________________________
395void AliITSsimulationSDD::FinishSDigitiseModule() {
396 // digitize module using the "slow" detector simulator from
397 // the sum of summable digits.
398 FinishDigits() ;
399 ClearMaps();
c7a4dac0 400}
401//______________________________________________________________________
b0f5e3fc 402void AliITSsimulationSDD::DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
8a33ae9e 403 // create maps to build the lists of tracks for each digit
b0f5e3fc 404
405 TObjArray *fHits = mod->GetHits();
8a33ae9e 406 Int_t nhits = fHits->GetEntriesFast();
8a33ae9e 407
50d05d7b 408 InitSimulationModule( md, ev );
409
410 if( !nhits && fCheckNoise ) {
48058160 411 ChargeToSignal( kTRUE ); // process noise
ece86d9a 412 GetNoise();
50d05d7b 413 ClearMaps();
ece86d9a 414 return;
50d05d7b 415 } else
416 if( !nhits ) return;
48058160 417
50d05d7b 418 HitsToAnalogDigits( mod );
48058160 419 ChargeToSignal( kTRUE ); // process signal + noise
420
421 for( Int_t i=0; i<fNofMaps; i++ ) {
422 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
423 Int_t jdx = j*fScaleSize;
424 Int_t index = fpList->GetHitIndex( i, j );
425 AliITSpListItem pItemTmp2( fModule, index, 0. );
426 // put the fScaleSize analog digits in only one
427 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
428 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
429 if( pItemTmp == 0 ) continue;
430 pItemTmp2.Add( pItemTmp );
431 }
432 fpList->DeleteHit( i, j );
433 fpList->AddItemTo( 0, &pItemTmp2 );
434 }
435 }
436
50d05d7b 437 FinishDigits();
438 ClearMaps();
c7a4dac0 439}
440//______________________________________________________________________
50d05d7b 441void AliITSsimulationSDD::FinishDigits() {
c7a4dac0 442 // introduce the electronics effects and do zero-suppression if required
8a33ae9e 443
50d05d7b 444 ApplyDeadChannels();
445 if( fCrosstalkFlag ) ApplyCrosstalk();
446
447 const char *kopt = fResponse->ZeroSuppOption();
448 ZeroSuppression( kopt );
c7a4dac0 449}
450//______________________________________________________________________
50d05d7b 451void AliITSsimulationSDD::HitsToAnalogDigits( AliITSmodule *mod ) {
c7a4dac0 452 // create maps to build the lists of tracks for each digit
453
454 TObjArray *fHits = mod->GetHits();
455 Int_t nhits = fHits->GetEntriesFast();
50d05d7b 456// Int_t arg[6] = {0,0,0,0,0,0};
8a33ae9e 457 Int_t dummy = 0;
458 Int_t nofAnodes = fNofMaps/2;
459 Float_t sddLength = fSegmentation->Dx();
460 Float_t sddWidth = fSegmentation->Dz();
461 Float_t anodePitch = fSegmentation->Dpz(dummy);
462 Float_t timeStep = fSegmentation->Dpx(dummy);
463 Float_t driftSpeed = fResponse->DriftSpeed();
464 Float_t maxadc = fResponse->MaxAdc();
465 Float_t topValue = fResponse->DynamicRange();
466 Float_t cHloss = fResponse->ChargeLoss();
467 Float_t norm = maxadc/topValue;
468 Float_t dfCoeff, s1; fResponse->DiffCoeff(dfCoeff,s1); // Signal 2d Shape
469 Double_t eVpairs = 3.6; // electron pair energy eV.
470 Float_t nsigma = fResponse->NSigmaIntegration(); //
471 Int_t nlookups = fResponse->GausNLookUp(); //
48058160 472 Float_t jitter = ((AliITSresponseSDD*)fResponse)->JitterError(); //
44a312c3 473
b0f5e3fc 474 // Piergiorgio's part (apart for few variables which I made float
475 // when i thought that can be done
b0f5e3fc 476 // Fill detector maps with GEANT hits
477 // loop over hits in the module
478
8a33ae9e 479 const Float_t kconv = 1.0e+6; // GeV->KeV
480 Int_t itrack = 0;
481 Int_t hitDetector; // detector number (lay,lad,hitDetector)
482 Int_t iWing; // which detector wing/side.
483 Int_t detector; // 2*(detector-1)+iWing
484 Int_t ii,kk,ka,kt; // loop indexs
485 Int_t ia,it,index; // sub-pixel integration indexies
486 Int_t iAnode; // anode number.
487 Int_t timeSample; // time buckett.
488 Int_t anodeWindow; // anode direction charge integration width
489 Int_t timeWindow; // time direction charge integration width
490 Int_t jamin,jamax; // anode charge integration window
491 Int_t jtmin,jtmax; // time charge integration window
492 Int_t ndiv; // Anode window division factor.
493 Int_t nsplit; // the number of splits in anode and time windows==1.
494 Int_t nOfSplits; // number of times track length is split into
495 Float_t nOfSplitsF; // Floating point version of nOfSplits.
496 Float_t kkF; // Floating point version of loop index kk.
497 Float_t pathInSDD; // Track length in SDD.
498 Float_t drPath; // average position of track in detector. in microns
499 Float_t drTime; // Drift time
500 Float_t nmul; // drift time window multiplication factor.
501 Float_t avDrft; // x position of path length segment in cm.
502 Float_t avAnode; // Anode for path length segment in Anode number (float)
503 Float_t xAnode; // Floating point anode number.
504 Float_t driftPath; // avDrft in microns.
505 Float_t width; // width of signal at anodes.
506 Double_t depEnergy; // Energy deposited in this GEANT step.
507 Double_t xL[3],dxL[3]; // local hit coordinates and diff.
508 Double_t sigA; // sigma of signal at anode.
509 Double_t sigT; // sigma in time/drift direction for track segment
510 Double_t aStep,aConst; // sub-pixel size and offset anode
511 Double_t tStep,tConst; // sub-pixel size and offset time
512 Double_t amplitude; // signal amplitude for track segment in nanoAmpere
513 Double_t chargeloss; // charge loss for track segment.
514 Double_t anodeAmplitude; // signal amplitude in anode direction
515 Double_t aExpo; // exponent of Gaussian anode direction
516 Double_t timeAmplitude; // signal amplitude in time direction
517 Double_t tExpo; // exponent of Gaussian time direction
518// Double_t tof; // Time of flight in ns of this step.
44a312c3 519
b0f5e3fc 520 for(ii=0; ii<nhits; ii++) {
50d05d7b 521 if(!mod->LineSegmentL(ii,xL[0],dxL[0],xL[1],dxL[1],xL[2],dxL[2],
522 depEnergy,itrack)) continue;
48058160 523 xL[0] += 0.0001*gRandom->Gaus( 0, jitter ); //
50d05d7b 524 depEnergy *= kconv;
525 hitDetector = mod->GetDet();
526 //tof = 1.E+09*(mod->GetHit(ii)->GetTOF()); // tof in ns.
527 //if(tof>sddLength/driftSpeed) continue; // hit happed too late.
528
529 // scale path to simulate a perpendicular track
530 // continue if the particle did not lose energy
531 // passing through detector
532 if (!depEnergy) {
c135f70d 533 if(GetDebug()){
50d05d7b 534 Warning("HitsToAnalogDigits",
535 "fTrack = %d hit=%d module=%d This particle has"
536 " passed without losing energy!",
537 itrack,ii,mod->GetIndex());
c135f70d 538 }
50d05d7b 539 continue;
540 } // end if !depEnergy
541
542 pathInSDD = TMath::Sqrt(dxL[0]*dxL[0]+dxL[1]*dxL[1]+dxL[2]*dxL[2]);
543
544 if (fFlag && pathInSDD) { depEnergy *= (0.03/pathInSDD); }
545 drPath = 10000.*(dxL[0]+2.*xL[0])*0.5;
546 if(drPath < 0) drPath = -drPath;
547 drPath = sddLength-drPath;
548 if(drPath < 0) {
c135f70d 549 if(GetDebug()){ // this should be fixed at geometry level
50d05d7b 550 Warning("HitsToAnalogDigits",
551 "negative drift path drPath=%e sddLength=%e dxL[0]=%e "
552 "xL[0]=%e",
553 drPath,sddLength,dxL[0],xL[0]);
c135f70d 554 }
555 continue;
50d05d7b 556 } // end if drPath < 0
557
558 // Compute number of segments to brake step path into
559 drTime = drPath/driftSpeed; // Drift Time
560 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);// Sigma along the anodes
561 // calcuate the number of time the path length should be split into.
562 nOfSplits = (Int_t) (1. + 10000.*pathInSDD/sigA);
563 if(fFlag) nOfSplits = 1;
564
565 // loop over path segments, init. some variables.
566 depEnergy /= nOfSplits;
567 nOfSplitsF = (Float_t) nOfSplits;
568 for(kk=0;kk<nOfSplits;kk++) { // loop over path segments
569 kkF = (Float_t) kk + 0.5;
570 avDrft = xL[0]+dxL[0]*kkF/nOfSplitsF;
571 avAnode = xL[2]+dxL[2]*kkF/nOfSplitsF;
572 driftPath = 10000.*avDrft;
573
574 iWing = 2; // Assume wing is 2
575 if(driftPath < 0) { // if wing is not 2 it is 1.
576 iWing = 1;
577 driftPath = -driftPath;
578 } // end if driftPath < 0
579 driftPath = sddLength-driftPath;
580 detector = 2*(hitDetector-1) + iWing;
581 if(driftPath < 0) {
c135f70d 582 if(GetDebug()){ // this should be fixed at geometry level
50d05d7b 583 Warning("HitsToAnalogDigits","negative drift path "
584 "driftPath=%e sddLength=%e avDrft=%e dxL[0]=%e "
585 "xL[0]=%e",driftPath,sddLength,avDrft,dxL[0],xL[0]);
c135f70d 586 }
50d05d7b 587 continue;
588 } // end if driftPath < 0
589
590 // Drift Time
591 drTime = driftPath/driftSpeed; // drift time for segment.
592 timeSample = (Int_t) (fScaleSize*drTime/timeStep + 1);
593 // compute time Sample including tof information. The tof only
594 // effects the time of the signal is recoreded and not the
595 // the defusion.
596 // timeSample = (Int_t) (fScaleSize*(drTime+tof)/timeStep + 1);
597 if(timeSample > fScaleSize*fMaxNofSamples) {
598 Warning("HitsToAnalogDigits","Wrong Time Sample: %e",
599 timeSample);
600 continue;
601 } // end if timeSample > fScaleSize*fMaxNoofSamples
602
603 // Anode
604 xAnode = 10000.*(avAnode)/anodePitch + nofAnodes/2; // +1?
605 if(xAnode*anodePitch > sddWidth || xAnode*anodePitch < 0.)
606 Warning("HitsToAnalogDigits",
607 "Exceedubg sddWidth=%e Z = %e",
608 sddWidth,xAnode*anodePitch);
609 iAnode = (Int_t) (1.+xAnode); // xAnode?
610 if(iAnode < 1 || iAnode > nofAnodes) {
611 Warning("HitToAnalogDigits","Wrong iAnode: 1<%d>%d",
612 iAnode,nofAnodes);
613 continue;
614 } // end if iAnode < 1 || iAnode > nofAnodes
615
616 // store straight away the particle position in the array
617 // of particles and take idhit=ii only when part is entering (this
618 // requires FillModules() in the macro for analysis) :
b0f5e3fc 619
50d05d7b 620 // Sigma along the anodes for track segment.
621 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);
622 sigT = sigA/driftSpeed;
623 // Peak amplitude in nanoAmpere
624 amplitude = fScaleSize*160.*depEnergy/
625 (timeStep*eVpairs*2.*acos(-1.)*sigT*sigA);
626 amplitude *= timeStep/25.; // WARNING!!!!! Amplitude scaling to
627 // account for clock variations
8a33ae9e 628 // (reference value: 40 MHz)
50d05d7b 629 chargeloss = 1.-cHloss*driftPath/1000;
630 amplitude *= chargeloss;
631 width = 2.*nsigma/(nlookups-1);
632 // Spread the charge
633 // Pixel index
634 ndiv = 2;
635 nmul = 3.;
636 if(drTime > 1200.) {
637 ndiv = 4;
638 nmul = 1.5;
639 } // end if drTime > 1200.
640 // Sub-pixel index
641 nsplit = 4; // hard-wired //nsplit=4;nsplit = (nsplit+1)/2*2;
642 // Sub-pixel size see computation of aExpo and tExpo.
643 aStep = anodePitch/(nsplit*fScaleSize*sigA);
644 aConst = xAnode*anodePitch/sigA;
645 tStep = timeStep/(nsplit*fScaleSize*sigT);
646 tConst = drTime/sigT;
647 // Define SDD window corresponding to the hit
648 anodeWindow = (Int_t)(fScaleSize*nsigma*sigA/anodePitch+1);
649 timeWindow = (Int_t) (fScaleSize*nsigma*sigT/timeStep+1.);
650 jamin = (iAnode - anodeWindow/ndiv - 1)*fScaleSize*nsplit +1;
651 jamax = (iAnode + anodeWindow/ndiv)*fScaleSize*nsplit;
652 if(jamin <= 0) jamin = 1;
653 if(jamax > fScaleSize*nofAnodes*nsplit)
654 jamax = fScaleSize*nofAnodes*nsplit;
655 // jtmin and jtmax are Hard-wired
656 jtmin = (Int_t)(timeSample-timeWindow*nmul-1)*nsplit+1;
657 jtmax = (Int_t)(timeSample+timeWindow*nmul)*nsplit;
658 if(jtmin <= 0) jtmin = 1;
659 if(jtmax > fScaleSize*fMaxNofSamples*nsplit)
660 jtmax = fScaleSize*fMaxNofSamples*nsplit;
661 // Spread the charge in the anode-time window
662 for(ka=jamin; ka <=jamax; ka++) {
663 ia = (ka-1)/(fScaleSize*nsplit) + 1;
664 if(ia <= 0) {
665 Warning("HitsToAnalogDigits","ia < 1: ");
666 continue;
667 } // end if
668 if(ia > nofAnodes) ia = nofAnodes;
669 aExpo = (aStep*(ka-0.5)-aConst);
670 if(TMath::Abs(aExpo) > nsigma) anodeAmplitude = 0.;
671 else {
672 dummy = (Int_t) ((aExpo+nsigma)/width);
673 anodeAmplitude = amplitude*fResponse->GausLookUp(dummy);
674 } // end if TMath::Abs(aEspo) > nsigma
675 // index starts from 0
676 index = ((detector+1)%2)*nofAnodes+ia-1;
677 if(anodeAmplitude) for(kt=jtmin; kt<=jtmax; kt++) {
678 it = (kt-1)/nsplit+1; // it starts from 1
679 if(it<=0){
680 Warning("HitsToAnalogDigits","it < 1:");
681 continue;
682 } // end if
683 if(it>fScaleSize*fMaxNofSamples)
684 it = fScaleSize*fMaxNofSamples;
685 tExpo = (tStep*(kt-0.5)-tConst);
686 if(TMath::Abs(tExpo) > nsigma) timeAmplitude = 0.;
687 else {
688 dummy = (Int_t) ((tExpo+nsigma)/width);
689 timeAmplitude = anodeAmplitude*
690 fResponse->GausLookUp(dummy);
691 } // end if TMath::Abs(tExpo) > nsigma
692 // build the list of Sdigits for this module
693// arg[0] = index;
694// arg[1] = it;
695// arg[2] = itrack; // track number
696// arg[3] = ii-1; // hit number.
697 timeAmplitude *= norm;
698 timeAmplitude *= 10;
699// ListOfFiredCells(arg,timeAmplitude,alst,padr);
48058160 700 Double_t charge = timeAmplitude;
701 charge += fHitMap2->GetSignal(index,it-1);
702 fHitMap2->SetHit(index, it-1, charge);
50d05d7b 703 fpList->AddSignal(index,it-1,itrack,ii-1,
704 mod->GetIndex(),timeAmplitude);
43217ad9 705 fAnodeFire[index] = kTRUE;
50d05d7b 706 } // end if anodeAmplitude and loop over time in window
707 } // loop over anodes in window
708 } // end loop over "sub-hits"
44a312c3 709 } // end loop over hits
b0f5e3fc 710}
50d05d7b 711
712/*
8a33ae9e 713//______________________________________________________________________
b0f5e3fc 714void AliITSsimulationSDD::ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,
8a33ae9e 715 TObjArray *alist,TClonesArray *padr){
716 // Returns the list of "fired" cells.
717
718 Int_t index = arg[0];
719 Int_t ik = arg[1];
720 Int_t idtrack = arg[2];
721 Int_t idhit = arg[3];
722 Int_t counter = arg[4];
723 Int_t countadr = arg[5];
724 Double_t charge = timeAmplitude;
725 charge += fHitMap2->GetSignal(index,ik-1);
726 fHitMap2->SetHit(index, ik-1, charge);
727
728 Int_t digits[3];
729 Int_t it = (Int_t)((ik-1)/fScaleSize);
730 digits[0] = index;
731 digits[1] = it;
732 digits[2] = (Int_t)timeAmplitude;
733 Float_t phys;
734 if (idtrack >= 0) phys = (Float_t)timeAmplitude;
735 else phys = 0;
736
737 Double_t cellcharge = 0.;
738 AliITSTransientDigit* pdigit;
739 // build the list of fired cells and update the info
740 if (!fHitMap1->TestHit(index, it)) {
50d05d7b 741 new((*padr)[countadr++]) TVector(3);
742 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
743 trinfo(0) = (Float_t)idtrack;
744 trinfo(1) = (Float_t)idhit;
745 trinfo(2) = (Float_t)timeAmplitude;
746
747 alist->AddAtAndExpand(new AliITSTransientDigit(phys,digits),counter);
748 fHitMap1->SetHit(index, it, counter);
749 counter++;
750 pdigit=(AliITSTransientDigit*)alist->At(alist->GetLast());
751 // list of tracks
752 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
753 trlist->Add(&trinfo);
8a33ae9e 754 } else {
50d05d7b 755 pdigit = (AliITSTransientDigit*) fHitMap1->GetHit(index, it);
756 for(Int_t kk=0;kk<fScaleSize;kk++) {
757 cellcharge += fHitMap2->GetSignal(index,fScaleSize*it+kk);
758 } // end for kk
759 // update charge
760 (*pdigit).fSignal = (Int_t)cellcharge;
761 (*pdigit).fPhysics += phys;
762 // update list of tracks
763 TObjArray* trlist = (TObjArray*)pdigit->TrackList();
764 Int_t lastentry = trlist->GetLast();
765 TVector *ptrkp = (TVector*)trlist->At(lastentry);
766 TVector &trinfo = *ptrkp;
767 Int_t lasttrack = Int_t(trinfo(0));
768 Float_t lastcharge=(trinfo(2));
769 if (lasttrack==idtrack ) {
770 lastcharge += (Float_t)timeAmplitude;
771 trlist->RemoveAt(lastentry);
772 trinfo(0) = lasttrack;
773 trinfo(1) = idhit;
774 trinfo(2) = lastcharge;
775 trlist->AddAt(&trinfo,lastentry);
776 } else {
777 new((*padr)[countadr++]) TVector(3);
778 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
779 trinfo(0) = (Float_t)idtrack;
780 trinfo(1) = (Float_t)idhit;
781 trinfo(2) = (Float_t)timeAmplitude;
782 trlist->Add(&trinfo);
783 } // end if lasttrack==idtrack
b0f5e3fc 784
785#ifdef print
50d05d7b 786 // check the track list - debugging
787 Int_t trk[20], htrk[20];
788 Float_t chtrk[20];
789 Int_t nptracks = trlist->GetEntriesFast();
790 if (nptracks > 2) {
791 Int_t tr;
792 for (tr=0;tr<nptracks;tr++) {
793 TVector *pptrkp = (TVector*)trlist->At(tr);
794 TVector &pptrk = *pptrkp;
795 trk[tr] = Int_t(pptrk(0));
796 htrk[tr] = Int_t(pptrk(1));
797 chtrk[tr] = (pptrk(2));
798 cout << "nptracks "<<nptracks << endl;
799 } // end for tr
800 } // end if nptracks
b0f5e3fc 801#endif
8a33ae9e 802 } // end if pdigit
b0f5e3fc 803
8a33ae9e 804 // update counter and countadr for next call.
805 arg[4] = counter;
806 arg[5] = countadr;
b0f5e3fc 807}
50d05d7b 808*/
809
b0f5e3fc 810//____________________________________________
50d05d7b 811void AliITSsimulationSDD::AddDigit( Int_t i, Int_t j, Int_t signal ) {
812 // Adds a Digit.
ee86d557 813 Int_t size = AliITSdigitSPD::GetNTracks();
5c5273c2 814 Int_t digits[3];
815 Int_t * tracks = new Int_t[size];
816 Int_t * hits = new Int_t[size];
817 Float_t phys;
818 Float_t * charges = new Float_t[size];
50d05d7b 819
50d05d7b 820 digits[0] = i;
821 digits[1] = j;
822 digits[2] = signal;
823
48058160 824 AliITSpListItem *pItem = fpList->GetpListItem( i, j );
825 if( pItem == 0 ) {
826 phys = 0.0;
ee86d557 827 for( Int_t l=0; l<size; l++ ) {
48058160 828 tracks[l] = 0;
829 hits[l] = 0;
830 charges[l] = 0.0;
831 }
832 } else {
833 Int_t idtrack = pItem->GetTrack( 0 );
834 if( idtrack >= 0 ) phys = pItem->GetSignal();
835 else phys = 0.0;
836
ee86d557 837 for( Int_t l=0; l<size; l++ ) if(l<pItem->GetMaxKept()) {
48058160 838 tracks[l] = pItem->GetTrack( l );
839 hits[l] = pItem->GetHit( l );
840 charges[l] = pItem->GetSignal( l );
ee86d557 841 }else{
842 tracks[l] = -3;
843 hits[l] = -1;
844 charges[l] = 0.0;
845 }// end for if
50d05d7b 846 }
b0f5e3fc 847
50d05d7b 848 fITS->AddSimDigit( 1, phys, digits, tracks, hits, charges );
5c5273c2 849 delete [] tracks;
850 delete [] hits;
851 delete [] charges;
50d05d7b 852}
853
8a33ae9e 854//______________________________________________________________________
48058160 855void AliITSsimulationSDD::ChargeToSignal(Bool_t bAddNoise) {
8a33ae9e 856 // add baseline, noise, electronics and ADC saturation effects
b0f5e3fc 857
8a33ae9e 858 char opt1[20], opt2[20];
859 fResponse->ParamOptions(opt1,opt2);
860 char *read = strstr(opt1,"file");
861 Float_t baseline, noise;
862
863 if (read) {
50d05d7b 864 static Bool_t readfile=kTRUE;
865 //read baseline and noise from file
866 if (readfile) ReadBaseline();
867 readfile=kFALSE;
8a33ae9e 868 } else fResponse->GetNoiseParam(noise,baseline);
869
870 Float_t contrib=0;
871 Int_t i,k,kk;
872 Float_t maxadc = fResponse->MaxAdc();
873 if(!fDoFFT) {
50d05d7b 874 for (i=0;i<fNofMaps;i++) {
43217ad9 875 if( !fAnodeFire[i] ) continue;
50d05d7b 876 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
877 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
878 fInZR[k] = fHitMap2->GetSignal(i,k);
48058160 879 if( bAddNoise ) {
880 contrib = (baseline + noise*gRandom->Gaus());
881 fInZR[k] += contrib;
882 }
50d05d7b 883 } // end for k
884 for(k=0; k<fMaxNofSamples; k++) {
885 Double_t newcont = 0.;
886 Double_t maxcont = 0.;
887 for(kk=0;kk<fScaleSize;kk++) {
888 newcont = fInZR[fScaleSize*k+kk];
889 if(newcont > maxcont) maxcont = newcont;
890 } // end for kk
891 newcont = maxcont;
892 if (newcont >= maxadc) newcont = maxadc -1;
893 if(newcont >= baseline){
894 Warning("","newcont=%d>=baseline=%d",newcont,baseline);
895 } // end if
896 // back to analog: ?
897 fHitMap2->SetHit(i,k,newcont);
898 } // end for k
899 } // end for i loop over anodes
900 return;
8a33ae9e 901 } // end if DoFFT
ece86d9a 902
ece86d9a 903 for (i=0;i<fNofMaps;i++) {
43217ad9 904 if( !fAnodeFire[i] ) continue;
50d05d7b 905 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
906 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
907 fInZR[k] = fHitMap2->GetSignal(i,k);
48058160 908 if( bAddNoise ) {
909 contrib = (baseline + noise*gRandom->Gaus());
910 fInZR[k] += contrib;
911 }
50d05d7b 912 fInZI[k] = 0.;
913 } // end for k
914 FastFourierTransform(fElectronics,&fInZR[0],&fInZI[0],1);
915 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
916 Double_t rw = fElectronics->GetTraFunReal(k);
917 Double_t iw = fElectronics->GetTraFunImag(k);
918 fOutZR[k] = fInZR[k]*rw - fInZI[k]*iw;
919 fOutZI[k] = fInZR[k]*iw + fInZI[k]*rw;
920 } // end for k
921 FastFourierTransform(fElectronics,&fOutZR[0],&fOutZI[0],-1);
922 for(k=0; k<fMaxNofSamples; k++) {
923 Double_t newcont1 = 0.;
924 Double_t maxcont1 = 0.;
925 for(kk=0;kk<fScaleSize;kk++) {
926 newcont1 = fOutZR[fScaleSize*k+kk];
927 if(newcont1 > maxcont1) maxcont1 = newcont1;
928 } // end for kk
929 newcont1 = maxcont1;
930 if (newcont1 >= maxadc) newcont1 = maxadc -1;
931 fHitMap2->SetHit(i,k,newcont1);
932 } // end for k
8a33ae9e 933 } // end for i loop over anodes
ece86d9a 934 return;
b0f5e3fc 935}
50d05d7b 936//____________________________________________________________________
937void AliITSsimulationSDD::ApplyDeadChannels() {
938 // Set dead channel signal to zero
939 AliITSresponseSDD * response = (AliITSresponseSDD *)fResponse;
940
941 // nothing to do
942 if( response->GetDeadModules() == 0 &&
943 response->GetDeadChips() == 0 &&
944 response->GetDeadChannels() == 0 )
945 return;
946
947 static AliITS *iTS = (AliITS*)gAlice->GetModule( "ITS" );
948
949 Int_t fMaxNofSamples = fSegmentation->Npx();
950 AliITSgeom *geom = iTS->GetITSgeom();
951 Int_t firstSDDMod = geom->GetStartDet( 1 );
952 // loop over wings
953 for( Int_t j=0; j<2; j++ ) {
954 Int_t mod = (fModule-firstSDDMod)*2 + j;
955 for( Int_t u=0; u<response->Chips(); u++ )
956 for( Int_t v=0; v<response->Channels(); v++ ) {
957 Float_t Gain = response->Gain( mod, u, v );
958 for( Int_t k=0; k<fMaxNofSamples; k++ ) {
959 Int_t i = j*response->Chips()*response->Channels() +
960 u*response->Channels() +
961 v;
962 Double_t signal = Gain * fHitMap2->GetSignal( i, k );
963 fHitMap2->SetHit( i, k, signal ); ///
964 }
965 }
966 }
967}
968//______________________________________________________________________
969void AliITSsimulationSDD::ApplyCrosstalk() {
970 // function add the crosstalk effect to signal
971 // temporal function, should be checked...!!!
972
973 Int_t fNofMaps = fSegmentation->Npz();
974 Int_t fMaxNofSamples = fSegmentation->Npx();
975
976 // create and inizialice crosstalk map
977 Float_t* ctk = new Float_t[fNofMaps*fMaxNofSamples+1];
978 if( ctk == NULL ) {
979 Error( "ApplyCrosstalk", "no memory for temporal map: exit \n" );
980 return;
981 }
982 memset( ctk, 0, sizeof(Float_t)*(fNofMaps*fMaxNofSamples+1) );
983
984 Float_t noise, baseline;
985 fResponse->GetNoiseParam( noise, baseline );
986
987 for( Int_t z=0; z<fNofMaps; z++ ) {
988 Bool_t on = kFALSE;
989 Int_t tstart = 0;
990 Int_t tstop = 0;
991 Int_t nTsteps = 0;
992
993 for( Int_t l=0; l<fMaxNofSamples; l++ ) {
994 Float_t fadc = (Float_t)fHitMap2->GetSignal( z, l );
995 if( fadc > baseline ) {
996 if( on == kFALSE && l<fMaxNofSamples-4 ) {
997 Float_t fadc1 = (Float_t)fHitMap2->GetSignal( z, l+1 );
998 if( fadc1 < fadc ) continue;
999 on = kTRUE;
1000 nTsteps = 0;
1001 tstart = l;
1002 }
1003 nTsteps++;
1004 }
1005 else { // end fadc > baseline
1006 if( on == kTRUE ) {
1007 if( nTsteps > 2 ) {
1008 tstop = l;
1009 // make smooth derivative
1010 Float_t* dev = new Float_t[fMaxNofSamples+1];
1011 memset( dev, 0, sizeof(Float_t)*(fMaxNofSamples+1) );
1012 if( ctk == NULL ) {
1013 Error( "ApplyCrosstalk",
1014 "no memory for temporal array: exit \n" );
1015 return;
1016 }
1017 for( Int_t i=tstart; i<tstop; i++ ) {
1018 if( i > 2 && i < fMaxNofSamples-2 )
1019 dev[i] = -0.2*fHitMap2->GetSignal( z,i-2 )
1020 -0.1*fHitMap2->GetSignal( z,i-1 )
1021 +0.1*fHitMap2->GetSignal( z,i+1 )
1022 +0.2*fHitMap2->GetSignal( z,i+2 );
1023 }
1024
1025 // add crosstalk contribution to neibourg anodes
1026 for( Int_t i=tstart; i<tstop; i++ ) {
1027 Int_t anode = z - 1;
1028 Int_t i1 = (Int_t)((i-tstart)*.61+tstart+0.5); //
1029 Float_t ctktmp = -dev[i1] * 0.25;
1030 if( anode > 0 ) {
1031 ctk[anode*fMaxNofSamples+i] += ctktmp;
1032 }
1033 anode = z + 1;
1034 if( anode < fNofMaps ) {
1035 ctk[anode*fMaxNofSamples+i] += ctktmp;
1036 }
1037 }
1038 delete [] dev;
1039
1040 } // if( nTsteps > 2 )
1041 on = kFALSE;
1042 } // if( on == kTRUE )
1043 } // else
1044 }
1045 }
1046
1047 for( Int_t a=0; a<fNofMaps; a++ )
1048 for( Int_t t=0; t<fMaxNofSamples; t++ ) {
1049 Float_t signal = fHitMap2->GetSignal( a, t ) + ctk[a*fMaxNofSamples+t];
1050 fHitMap2->SetHit( a, t, signal );
1051 }
1052
1053 delete [] ctk;
1054}
8a33ae9e 1055//______________________________________________________________________
b0f5e3fc 1056void AliITSsimulationSDD::GetAnodeBaseline(Int_t i,Float_t &baseline,
1057 Float_t &noise){
8a33ae9e 1058 // Returns the Baseline for a particular anode.
1059 baseline = fBaseline[i];
1060 noise = fNoise[i];
b0f5e3fc 1061}
8a33ae9e 1062//______________________________________________________________________
b0f5e3fc 1063void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl,
1064 Int_t &th){
8a33ae9e 1065 // Returns the compression alogirthm parameters
1066 Int_t size = fD.GetSize();
1067 if (size > 2 ) {
50d05d7b 1068 db=fD[i]; tl=fT1[i]; th=fT2[i];
8a33ae9e 1069 } else {
50d05d7b 1070 if (size <= 2 && i>=fNofMaps/2) {
1071 db=fD[1]; tl=fT1[1]; th=fT2[1];
1072 } else {
1073 db=fD[0]; tl=fT1[0]; th=fT2[0];
1074 } // end if size <=2 && i>=fNofMaps/2
8a33ae9e 1075 } // end if size >2
b0f5e3fc 1076}
8a33ae9e 1077//______________________________________________________________________
b0f5e3fc 1078void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl){
8a33ae9e 1079 // returns the compression alogirthm parameters
1080 Int_t size = fD.GetSize();
b0f5e3fc 1081
8a33ae9e 1082 if (size > 2 ) {
50d05d7b 1083 db=fD[i]; tl=fT1[i];
8a33ae9e 1084 } else {
50d05d7b 1085 if (size <= 2 && i>=fNofMaps/2) {
1086 db=fD[1]; tl=fT1[1];
1087 } else {
1088 db=fD[0]; tl=fT1[0];
1089 } // end if size <=2 && i>=fNofMaps/2
7f1a504b 1090 // Warning("CompressionParam","\n Size= %d . Values i=%d ; db= %d ; tl= %d",size,i,db,tl);
8a33ae9e 1091 } // end if size > 2
b0f5e3fc 1092}
8a33ae9e 1093//______________________________________________________________________
b0f5e3fc 1094void AliITSsimulationSDD::SetCompressParam(){
8a33ae9e 1095 // Sets the compression alogirthm parameters
1096 Int_t cp[8],i;
1097
1098 fResponse->GiveCompressParam(cp);
1099 for (i=0; i<2; i++) {
50d05d7b 1100 fD[i] = cp[i];
1101 fT1[i] = cp[i+2];
1102 fT2[i] = cp[i+4];
1103 fTol[i] = cp[i+6];
8a33ae9e 1104 } // end for i
b0f5e3fc 1105}
8a33ae9e 1106//______________________________________________________________________
b0f5e3fc 1107void AliITSsimulationSDD::ReadBaseline(){
8a33ae9e 1108 // read baseline and noise from file - either a .root file and in this
1109 // case data should be organised in a tree with one entry for each
1110 // module => reading should be done accordingly
1111 // or a classic file and do smth. like this:
1112 // Read baselines and noise for SDD
b0f5e3fc 1113
1114 Int_t na,pos;
1115 Float_t bl,n;
e8189707 1116 char input[100], base[100], param[100];
b0f5e3fc 1117 char *filtmp;
1118
e8189707 1119 fResponse->Filenames(input,base,param);
b0f5e3fc 1120 fFileName=base;
1121//
1122 filtmp = gSystem->ExpandPathName(fFileName.Data());
1123 FILE *bline = fopen(filtmp,"r");
b0f5e3fc 1124 na = 0;
1125
1126 if(bline) {
50d05d7b 1127 while(fscanf(bline,"%d %f %f",&pos, &bl, &n) != EOF) {
1128 if (pos != na+1) {
1129 Error("ReadBaseline","Anode number not in increasing order!",
1130 filtmp);
1131 exit(1);
1132 } // end if pos != na+1
1133 fBaseline[na]=bl;
1134 fNoise[na]=n;
1135 na++;
1136 } // end while
b0f5e3fc 1137 } else {
50d05d7b 1138 Error("ReadBaseline"," THE BASELINE FILE %s DOES NOT EXIST !",filtmp);
1139 exit(1);
b0f5e3fc 1140 } // end if(bline)
8a33ae9e 1141
b0f5e3fc 1142 fclose(bline);
1143 delete [] filtmp;
b0f5e3fc 1144}
8a33ae9e 1145//______________________________________________________________________
1146Int_t AliITSsimulationSDD::Convert10to8(Int_t signal) const {
1147 // To the 10 to 8 bit lossive compression.
1148 // code from Davide C. and Albert W.
1149
1150 if (signal < 128) return signal;
1151 if (signal < 256) return (128+((signal-128)>>1));
1152 if (signal < 512) return (192+((signal-256)>>3));
1153 if (signal < 1024) return (224+((signal-512)>>4));
1154 return 0;
b0f5e3fc 1155}
50d05d7b 1156
1157/*
8a33ae9e 1158//______________________________________________________________________
b0f5e3fc 1159AliITSMap* AliITSsimulationSDD::HitMap(Int_t i){
8a33ae9e 1160 //Return the correct map.
1161
b0f5e3fc 1162 return ((i==0)? fHitMap1 : fHitMap2);
50d05d7b 1163}*/
1164
8a33ae9e 1165//______________________________________________________________________
e8189707 1166void AliITSsimulationSDD::ZeroSuppression(const char *option) {
8a33ae9e 1167 // perform the zero suppresion
1168
1169 if (strstr(option,"2D")) {
50d05d7b 1170 //Init2D(); // activate if param change module by module
1171 Compress2D();
8a33ae9e 1172 } else if (strstr(option,"1D")) {
50d05d7b 1173 //Init1D(); // activate if param change module by module
1174 Compress1D();
8a33ae9e 1175 } else StoreAllDigits();
b0f5e3fc 1176}
8a33ae9e 1177//______________________________________________________________________
b0f5e3fc 1178void AliITSsimulationSDD::Init2D(){
8a33ae9e 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
b0f5e3fc 1187
b9d0a01d 1188 if (!strstr(fParam.Data(),"file")) return;
b0f5e3fc 1189
1190 Int_t na,pos,tempTh;
1191 Float_t mu,sigma;
8a33ae9e 1192 Float_t *savemu = new Float_t [fNofMaps];
e8189707 1193 Float_t *savesigma = new Float_t [fNofMaps];
1194 char input[100],basel[100],par[100];
b0f5e3fc 1195 char *filtmp;
703a4e51 1196 Float_t tmp1,tmp2;
1197 fResponse->Thresholds(tmp1,tmp2);
1198 Int_t minval = static_cast<Int_t>(tmp1);
b0f5e3fc 1199
e8189707 1200 fResponse->Filenames(input,basel,par);
8a33ae9e 1201 fFileName = par;
b0f5e3fc 1202//
1203 filtmp = gSystem->ExpandPathName(fFileName.Data());
1204 FILE *param = fopen(filtmp,"r");
1205 na = 0;
1206
1207 if(param) {
50d05d7b 1208 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1209 if (pos != na+1) {
1210 Error("Init2D","Anode number not in increasing order!",filtmp);
1211 exit(1);
1212 } // end if pos != na+1
1213 savemu[na] = mu;
8a33ae9e 1214 savesigma[na] = sigma;
b0f5e3fc 1215 if ((2.*sigma) < mu) {
1216 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1217 mu = 2.0 * sigma;
50d05d7b 1218 } else fD[na] = 0;
b0f5e3fc 1219 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1220 if (tempTh < 0) tempTh=0;
1221 fT1[na] = tempTh;
1222 tempTh = (Int_t)floor(mu+3.0*sigma+0.5) - minval;
1223 if (tempTh < 0) tempTh=0;
1224 fT2[na] = tempTh;
1225 na++;
50d05d7b 1226 } // end while
b0f5e3fc 1227 } else {
50d05d7b 1228 Error("Init2D","THE FILE %s DOES NOT EXIST !",filtmp);
1229 exit(1);
b0f5e3fc 1230 } // end if(param)
8a33ae9e 1231
b0f5e3fc 1232 fclose(param);
1233 delete [] filtmp;
5d18fa90 1234 delete [] savemu;
e8189707 1235 delete [] savesigma;
8a33ae9e 1236}
1237//______________________________________________________________________
b0f5e3fc 1238void AliITSsimulationSDD::Compress2D(){
8a33ae9e 1239 // simple ITS cluster finder -- online zero-suppression conditions
b0f5e3fc 1240
703a4e51 1241 Int_t db,tl,th;
1242 Float_t tmp1,tmp2;
1243 fResponse->Thresholds(tmp1,tmp2);
1244 Int_t minval = static_cast<Int_t>(tmp1);
8a33ae9e 1245 Bool_t write = fResponse->OutputOption();
1246 Bool_t do10to8 = fResponse->Do10to8();
b0f5e3fc 1247 Int_t nz, nl, nh, low, i, j;
1248
e8189707 1249 for (i=0; i<fNofMaps; i++) {
b0f5e3fc 1250 CompressionParam(i,db,tl,th);
8a33ae9e 1251 nz = 0;
1252 nl = 0;
1253 nh = 0;
1254 low = 0;
50d05d7b 1255 for (j=0; j<fMaxNofSamples; j++) {
1256 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1257 signal -= db; // if baseline eq. is done here
b0f5e3fc 1258 if (signal <= 0) {nz++; continue;}
50d05d7b 1259 if ((signal - tl) < minval) low++;
b0f5e3fc 1260 if ((signal - th) >= minval) {
50d05d7b 1261 nh++;
1262 Bool_t cond=kTRUE;
1263 FindCluster(i,j,signal,minval,cond);
1264 if(cond && j &&
1265 ((TMath::Abs(fHitMap2->GetSignal(i,j-1))-th)>=minval)){
1266 if(do10to8) signal = Convert10to8(signal);
1267 AddDigit(i,j,signal);
1268 } // end if cond&&j&&()
1269 } else if ((signal - tl) >= minval) nl++;
1270 } // end for j loop time samples
1271 if (write) TreeB()->Fill(nz,nl,nh,low,i+1);
8a33ae9e 1272 } //end for i loop anodes
b0f5e3fc 1273
8a33ae9e 1274 char hname[30];
1275 if (write) {
50d05d7b 1276 sprintf(hname,"TNtuple%d_%d",fModule,fEvent);
1277 TreeB()->Write(hname);
1278 // reset tree
b0f5e3fc 1279 TreeB()->Reset();
8a33ae9e 1280 } // end if write
1281}
1282//______________________________________________________________________
b0f5e3fc 1283void AliITSsimulationSDD::FindCluster(Int_t i,Int_t j,Int_t signal,
ece86d9a 1284 Int_t minval,Bool_t &cond){
8a33ae9e 1285 // Find clusters according to the online 2D zero-suppression algorithm
1286 Bool_t do10to8 = fResponse->Do10to8();
1287 Bool_t high = kFALSE;
b0f5e3fc 1288
1289 fHitMap2->FlagHit(i,j);
1290//
1291// check the online zero-suppression conditions
1292//
8a33ae9e 1293 const Int_t kMaxNeighbours = 4;
b0f5e3fc 1294 Int_t nn;
1295 Int_t dbx,tlx,thx;
8a33ae9e 1296 Int_t xList[kMaxNeighbours], yList[kMaxNeighbours];
e8189707 1297 fSegmentation->Neighbours(i,j,&nn,xList,yList);
ece86d9a 1298 Int_t in,ix,iy,qns;
e8189707 1299 for (in=0; in<nn; in++) {
50d05d7b 1300 ix=xList[in];
e8189707 1301 iy=yList[in];
b0f5e3fc 1302 if (fHitMap2->TestHit(ix,iy)==kUnused) {
50d05d7b 1303 CompressionParam(ix,dbx,tlx,thx);
1304 Int_t qn = (Int_t)(fHitMap2->GetSignal(ix,iy));
1305 qn -= dbx; // if baseline eq. is done here
1306 if ((qn-tlx) < minval) {
1307 fHitMap2->FlagHit(ix,iy);
1308 continue;
1309 } else {
1310 if ((qn - thx) >= minval) high=kTRUE;
1311 if (cond) {
1312 if(do10to8) signal = Convert10to8(signal);
1313 AddDigit(i,j,signal);
1314 } // end if cond
1315 if(do10to8) qns = Convert10to8(qn);
1316 else qns=qn;
1317 if (!high) AddDigit(ix,iy,qns);
1318 cond=kFALSE;
1319 if(!high) fHitMap2->FlagHit(ix,iy);
1320 } // end if qn-tlx < minval
1321 } // end if TestHit
8a33ae9e 1322 } // end for in loop over neighbours
b0f5e3fc 1323}
8a33ae9e 1324//______________________________________________________________________
b0f5e3fc 1325void AliITSsimulationSDD::Init1D(){
8a33ae9e 1326 // this is just a copy-paste of input taken from 2D algo
1327 // Torino people should give input
1328 // Read 1D zero-suppression parameters for SDD
b0f5e3fc 1329
b9d0a01d 1330 if (!strstr(fParam.Data(),"file")) return;
b0f5e3fc 1331
1332 Int_t na,pos,tempTh;
1333 Float_t mu,sigma;
8a33ae9e 1334 Float_t *savemu = new Float_t [fNofMaps];
e8189707 1335 Float_t *savesigma = new Float_t [fNofMaps];
1336 char input[100],basel[100],par[100];
b0f5e3fc 1337 char *filtmp;
703a4e51 1338 Float_t tmp1,tmp2;
1339 fResponse->Thresholds(tmp1,tmp2);
1340 Int_t minval = static_cast<Int_t>(tmp1);
8a33ae9e 1341
e8189707 1342 fResponse->Filenames(input,basel,par);
1343 fFileName=par;
b0f5e3fc 1344
1345// set first the disable and tol param
1346 SetCompressParam();
1347//
1348 filtmp = gSystem->ExpandPathName(fFileName.Data());
1349 FILE *param = fopen(filtmp,"r");
1350 na = 0;
1351
1352 if (param) {
50d05d7b 1353 fscanf(param,"%d %d %d %d ", &fT2[0], &fT2[1], &fTol[0], &fTol[1]);
1354 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1355 if (pos != na+1) {
1356 Error("Init1D","Anode number not in increasing order!",filtmp);
1357 exit(1);
1358 } // end if pos != na+1
1359 savemu[na]=mu;
1360 savesigma[na]=sigma;
1361 if ((2.*sigma) < mu) {
1362 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1363 mu = 2.0 * sigma;
1364 } else fD[na] = 0;
1365 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1366 if (tempTh < 0) tempTh=0;
1367 fT1[na] = tempTh;
1368 na++;
1369 } // end while
b0f5e3fc 1370 } else {
50d05d7b 1371 Error("Init1D","THE FILE %s DOES NOT EXIST !",filtmp);
1372 exit(1);
b0f5e3fc 1373 } // end if(param)
8a33ae9e 1374
b0f5e3fc 1375 fclose(param);
1376 delete [] filtmp;
749bd21a 1377 delete [] savemu;
e8189707 1378 delete [] savesigma;
8a33ae9e 1379}
1380//______________________________________________________________________
b0f5e3fc 1381void AliITSsimulationSDD::Compress1D(){
1382 // 1D zero-suppression algorithm (from Gianluca A.)
8a33ae9e 1383 Int_t dis,tol,thres,decr,diff;
b0f5e3fc 1384 UChar_t *str=fStream->Stream();
8a33ae9e 1385 Int_t counter=0;
1386 Bool_t do10to8=fResponse->Do10to8();
1387 Int_t last=0;
1388 Int_t k,i,j;
ece86d9a 1389
ece86d9a 1390 for (k=0; k<2; k++) {
50d05d7b 1391 tol = Tolerance(k);
1392 dis = Disable(k);
1393 for (i=0; i<fNofMaps/2; i++) {
1394 Bool_t firstSignal=kTRUE;
1395 Int_t idx=i+k*fNofMaps/2;
43217ad9 1396 if( !fAnodeFire[idx] ) continue;
50d05d7b 1397 CompressionParam(idx,decr,thres);
c95169ba 1398
1399 decr=20; thres=3; //I.Belikov's temporary fix (needed for the PID)
1400
50d05d7b 1401 for (j=0; j<fMaxNofSamples; j++) {
1402 Int_t signal=(Int_t)(fHitMap2->GetSignal(idx,j));
1403 signal -= decr; // if baseline eq.
1404 if(do10to8) signal = Convert10to8(signal);
1405 if (signal <= thres) {
1406 signal=0;
1407 diff=128;
1408 last=0;
1409 // write diff in the buffer for HuffT
1410 str[counter]=(UChar_t)diff;
1411 counter++;
1412 continue;
1413 } // end if signal <= thres
1414 diff=signal-last;
1415 if (diff > 127) diff=127;
1416 if (diff < -128) diff=-128;
1417 if (signal < dis) {
1418 // tol has changed to 8 possible cases ? - one can write
1419 // this if(TMath::Abs(diff)<tol) ... else ...
1420 if(TMath::Abs(diff)<tol) diff=0;
1421 // or keep it as it was before
ece86d9a 1422 AddDigit(idx,j,last+diff);
50d05d7b 1423 } else {
1424 AddDigit(idx,j,signal);
1425 } // end if singal < dis
1426 diff += 128;
1427 // write diff in the buffer used to compute Huffman tables
1428 if (firstSignal) str[counter]=(UChar_t)signal;
1429 else str[counter]=(UChar_t)diff;
1430 counter++;
1431 last=signal;
1432 firstSignal=kFALSE;
1433 } // end for j loop time samples
1434 } // end for i loop anodes one half of detector
8a33ae9e 1435 } // end for k
b0f5e3fc 1436
1437 // check
1438 fStream->CheckCount(counter);
1439
1440 // open file and write out the stream of diff's
b0f5e3fc 1441 static Bool_t open=kTRUE;
e8189707 1442 static TFile *outFile;
b0f5e3fc 1443 Bool_t write = fResponse->OutputOption();
9ad8b5dd 1444 TDirectory *savedir = gDirectory;
b0f5e3fc 1445
1446 if (write ) {
50d05d7b 1447 if(open) {
1448 SetFileName("stream.root");
1449 cout<<"filename "<<fFileName<<endl;
1450 outFile=new TFile(fFileName,"recreate");
1451 cout<<"I have opened "<<fFileName<<" file "<<endl;
1452 } // end if open
1453 open = kFALSE;
1454 outFile->cd();
b0f5e3fc 1455 fStream->Write();
50d05d7b 1456 } // endif write
b0f5e3fc 1457
8a33ae9e 1458 fStream->ClearStream();
b0f5e3fc 1459
8a33ae9e 1460 // back to galice.root file
9ad8b5dd 1461 if(savedir) savedir->cd();
8a33ae9e 1462}
1463//______________________________________________________________________
b0f5e3fc 1464void AliITSsimulationSDD::StoreAllDigits(){
8a33ae9e 1465 // if non-zero-suppressed data
1466 Bool_t do10to8 = fResponse->Do10to8();
ece86d9a 1467 Int_t i, j, digits[3];
8a33ae9e 1468
e8189707 1469 for (i=0; i<fNofMaps; i++) {
1470 for (j=0; j<fMaxNofSamples; j++) {
50d05d7b 1471 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1472 if(do10to8) signal = Convert10to8(signal);
50d05d7b 1473 digits[0] = i;
1474 digits[1] = j;
1475 digits[2] = signal;
1476 fITS->AddRealDigit(1,digits);
1477 } // end for j
8a33ae9e 1478 } // end for i
b0f5e3fc 1479}
8a33ae9e 1480//______________________________________________________________________
ece86d9a 1481void AliITSsimulationSDD::CreateHistograms(Int_t scale){
8a33ae9e 1482 // Creates histograms of maps for debugging
1483 Int_t i;
ece86d9a 1484
1485 fHis=new TObjArray(fNofMaps);
e8189707 1486 for (i=0;i<fNofMaps;i++) {
50d05d7b 1487 TString sddName("sdd_");
1488 Char_t candNum[4];
1489 sprintf(candNum,"%d",i+1);
1490 sddName.Append(candNum);
1491 fHis->AddAt(new TH1F(sddName.Data(),"SDD maps",scale*fMaxNofSamples,
1492 0.,(Float_t) scale*fMaxNofSamples), i);
8a33ae9e 1493 } // end for i
b0f5e3fc 1494}
8a33ae9e 1495//______________________________________________________________________
ece86d9a 1496void AliITSsimulationSDD::FillHistograms(){
8a33ae9e 1497 // fill 1D histograms from map
1498
1499 if (!fHis) return;
1500
1501 for( Int_t i=0; i<fNofMaps; i++) {
50d05d7b 1502 TH1F *hist =(TH1F *)fHis->UncheckedAt(i);
1503 Int_t nsamples = hist->GetNbinsX();
1504 for( Int_t j=0; j<nsamples; j++) {
1505 Double_t signal=fHitMap2->GetSignal(i,j);
1506 hist->Fill((Float_t)j,signal);
1507 } // end for j
8a33ae9e 1508 } // end for i
ece86d9a 1509}
8a33ae9e 1510//______________________________________________________________________
b0f5e3fc 1511void AliITSsimulationSDD::ResetHistograms(){
b0f5e3fc 1512 // Reset histograms for this detector
b0f5e3fc 1513 Int_t i;
8a33ae9e 1514
e8189707 1515 for (i=0;i<fNofMaps;i++ ) {
50d05d7b 1516 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
8a33ae9e 1517 } // end for i
b0f5e3fc 1518}
8a33ae9e 1519//______________________________________________________________________
b0f5e3fc 1520TH1F *AliITSsimulationSDD::GetAnode(Int_t wing, Int_t anode) {
8a33ae9e 1521 // Fills a histogram from a give anode.
1522
1523 if (!fHis) return 0;
1524
1525 if(wing <=0 || wing > 2) {
50d05d7b 1526 Warning("GetAnode","Wrong wing number: %d",wing);
1527 return NULL;
8a33ae9e 1528 } // end if wing <=0 || wing >2
1529 if(anode <=0 || anode > fNofMaps/2) {
50d05d7b 1530 Warning("GetAnode","Wrong anode number: %d",anode);
1531 return NULL;
8a33ae9e 1532 } // end if ampde <=0 || andoe > fNofMaps/2
1533
1534 Int_t index = (wing-1)*fNofMaps/2 + anode-1;
8a33ae9e 1535 return (TH1F*)(fHis->At(index));
b0f5e3fc 1536}
8a33ae9e 1537//______________________________________________________________________
b0f5e3fc 1538void AliITSsimulationSDD::WriteToFile(TFile *hfile) {
8a33ae9e 1539 // Writes the histograms to a file
b0f5e3fc 1540
8a33ae9e 1541 if (!fHis) return;
1542
1543 hfile->cd();
1544 Int_t i;
8a33ae9e 1545 for(i=0; i<fNofMaps; i++) fHis->At(i)->Write(); //fAdcs[i]->Write();
1546 return;
b0f5e3fc 1547}
8a33ae9e 1548//______________________________________________________________________
ece86d9a 1549Float_t AliITSsimulationSDD::GetNoise() {
8a33ae9e 1550 // Returns the noise value
1551 //Bool_t do10to8=fResponse->Do10to8();
1552 //noise will always be in the liniar part of the signal
1553 Int_t decr;
1554 Int_t threshold = fT1[0];
1555 char opt1[20], opt2[20];
1556
1557 fResponse->ParamOptions(opt1,opt2);
1558 fParam=opt2;
1559 char *same = strstr(opt1,"same");
1560 Float_t noise,baseline;
1561 if (same) {
50d05d7b 1562 fResponse->GetNoiseParam(noise,baseline);
8a33ae9e 1563 } else {
50d05d7b 1564 static Bool_t readfile=kTRUE;
1565 //read baseline and noise from file
1566 if (readfile) ReadBaseline();
1567 readfile=kFALSE;
8a33ae9e 1568 } // end if same
1569
1570 TCanvas *c2 = (TCanvas*)gROOT->GetListOfCanvases()->FindObject("c2");
1571 if(c2) delete c2->GetPrimitive("noisehist");
1572 if(c2) delete c2->GetPrimitive("anode");
1573 else c2=new TCanvas("c2");
1574 c2->cd();
1575 c2->SetFillColor(0);
1576
1577 TH1F *noisehist = new TH1F("noisehist","noise",100,0.,(float)2*threshold);
1578 TH1F *anode = new TH1F("anode","Anode Projection",fMaxNofSamples,0.,
50d05d7b 1579 (float)fMaxNofSamples);
8a33ae9e 1580 Int_t i,k;
1581 for (i=0;i<fNofMaps;i++) {
50d05d7b 1582 CompressionParam(i,decr,threshold);
1583 if (!same) GetAnodeBaseline(i,baseline,noise);
1584 anode->Reset();
1585 for (k=0;k<fMaxNofSamples;k++) {
1586 Float_t signal=(Float_t)fHitMap2->GetSignal(i,k);
1587 //if (signal <= (float)threshold) noisehist->Fill(signal-baseline);
1588 if (signal <= (float)threshold) noisehist->Fill(signal);
1589 anode->Fill((float)k,signal);
1590 } // end for k
1591 anode->Draw();
1592 c2->Update();
8a33ae9e 1593 } // end for i
1594 TF1 *gnoise = new TF1("gnoise","gaus",0.,threshold);
1595 noisehist->Fit("gnoise","RQ");
1596 noisehist->Draw();
ece86d9a 1597 c2->Update();
8a33ae9e 1598 Float_t mnoise = gnoise->GetParameter(1);
1599 cout << "mnoise : " << mnoise << endl;
1600 Float_t rnoise = gnoise->GetParameter(2);
1601 cout << "rnoise : " << rnoise << endl;
1602 delete noisehist;
1603 return rnoise;
50d05d7b 1604}
1605//______________________________________________________________________
1606void AliITSsimulationSDD::WriteSDigits(){
c7a4dac0 1607 // Fills the Summable digits Tree
c7a4dac0 1608 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
1609
48058160 1610 for( Int_t i=0; i<fNofMaps; i++ ) {
43217ad9 1611 if( !fAnodeFire[i] ) continue;
48058160 1612 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
1613 Double_t sig = fHitMap2->GetSignal( i, j );
1614 if( sig > 0.2 ) {
1615 Int_t jdx = j*fScaleSize;
1616 Int_t index = fpList->GetHitIndex( i, j );
1617 AliITSpListItem pItemTmp2( fModule, index, 0. );
1618 // put the fScaleSize analog digits in only one
1619 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
1620 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
1621 if( pItemTmp == 0 ) continue;
1622 pItemTmp2.Add( pItemTmp );
1623 }
1624 pItemTmp2.AddSignalAfterElect( fModule, index, sig );
1625 pItemTmp2.AddNoise( fModule, index, fHitNoiMap2->GetSignal( i, j ) );
1626 aliITS->AddSumDigit( pItemTmp2 );
1627 } // end if (sig > 0.2)
1628 }
1629 }
c7a4dac0 1630 return;
b0f5e3fc 1631}
8a33ae9e 1632//______________________________________________________________________
44a312c3 1633void AliITSsimulationSDD::Print() {
8a33ae9e 1634 // Print SDD simulation Parameters
1635
1636 cout << "**************************************************" << endl;
1637 cout << " Silicon Drift Detector Simulation Parameters " << endl;
1638 cout << "**************************************************" << endl;
1639 cout << "Flag for Perpendicular tracks: " << (Int_t) fFlag << endl;
1640 cout << "Flag for noise checking: " << (Int_t) fCheckNoise << endl;
1641 cout << "Flag to switch off electronics: " << (Int_t) fDoFFT << endl;
1642 cout << "Number pf Anodes used: " << fNofMaps << endl;
1643 cout << "Number of Time Samples: " << fMaxNofSamples << endl;
1644 cout << "Scale size factor: " << fScaleSize << endl;
1645 cout << "**************************************************" << endl;
44a312c3 1646}