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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 **************************************************************************/
48058160 15/*
16 $Id$
17 $Log$
4ae5bbc4 18 Revision 1.37 2002/10/14 14:57:07 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
20
b9d0a01d 21 Revision 1.32.4.4 2002/10/14 13:14:08 hristov
22 Updating VirtualMC to v3-09-02
23
24 Revision 1.36 2002/09/11 10:32:41 hristov
25 Use new for arrays with variable size
26
5c5273c2 27 Revision 1.35 2002/09/09 17:23:28 nilsen
28 Minor changes in support of changes to AliITSdigitS?D class'.
29
ee86d557 30 Revision 1.34 2002/06/07 16:32:28 nilsen
31 Latest SDD changes to speed up the SDD simulation code.
32
43217ad9 33 Revision 1.33 2002/04/24 22:02:31 nilsen
34 New SDigits and Digits routines, and related changes, (including new
35 noise values).
36
48058160 37 */
b0f5e3fc 38
4ae5bbc4 39#include <Riostream.h>
b0f5e3fc 40#include <stdlib.h>
41#include <stdio.h>
1ca7869b 42#include <string.h>
43
94de3818 44#include <TSystem.h>
45#include <TROOT.h>
608f25d8 46#include <TStopwatch.h>
ece86d9a 47#include <TCanvas.h>
48#include <TF1.h>
49#include <TRandom.h>
1ca7869b 50#include <TH1.h>
51#include <TFile.h>
52#include <TVector.h>
53#include <TArrayI.h>
54#include <TArrayF.h>
ece86d9a 55
b0f5e3fc 56#include "AliRun.h"
e8189707 57#include "AliITS.h"
ece86d9a 58#include "AliITShit.h"
59#include "AliITSdigit.h"
60#include "AliITSmodule.h"
c7a4dac0 61#include "AliITSpList.h"
e8189707 62#include "AliITSMapA1.h"
63#include "AliITSMapA2.h"
e8189707 64#include "AliITSetfSDD.h"
65#include "AliITSRawData.h"
b0f5e3fc 66#include "AliITSHuffman.h"
50d05d7b 67#include "AliITSgeom.h"
ece86d9a 68#include "AliITSsegmentation.h"
69#include "AliITSresponse.h"
c7a4dac0 70#include "AliITSsegmentationSDD.h"
71#include "AliITSresponseSDD.h"
1ca7869b 72#include "AliITSsimulationSDD.h"
b0f5e3fc 73
b0f5e3fc 74ClassImp(AliITSsimulationSDD)
75////////////////////////////////////////////////////////////////////////
76// Version: 0
77// Written by Piergiorgio Cerello
78// November 23 1999
79//
80// AliITSsimulationSDD is the simulation of SDDs.
81 //
82//Begin_Html
83/*
84<img src="picts/ITS/AliITShit_Class_Diagram.gif">
85</pre>
86<br clear=left>
87<font size=+2 color=red>
88<p>This show the relasionships between the ITS hit class and the rest of Aliroot.
89</font>
90<pre>
91*/
92//End_Html
8a33ae9e 93//______________________________________________________________________
b0f5e3fc 94Int_t power(Int_t b, Int_t e) {
8a33ae9e 95 // compute b to the e power, where both b and e are Int_ts.
96 Int_t power = 1,i;
b0f5e3fc 97
8a33ae9e 98 for(i=0; i<e; i++) power *= b;
99 return power;
100}
101//______________________________________________________________________
b0f5e3fc 102void FastFourierTransform(AliITSetfSDD *alisddetf,Double_t *real,
103 Double_t *imag,Int_t direction) {
8a33ae9e 104 // Do a Fast Fourier Transform
8a33ae9e 105
106 Int_t samples = alisddetf->GetSamples();
107 Int_t l = (Int_t) ((log((Float_t) samples)/log(2.))+0.5);
108 Int_t m1 = samples;
109 Int_t m = samples/2;
110 Int_t m2 = samples/m1;
111 Int_t i,j,k;
112 for(i=1; i<=l; i++) {
50d05d7b 113 for(j=0; j<samples; j += m1) {
114 Int_t p = 0;
115 for(k=j; k<= j+m-1; k++) {
116 Double_t wsr = alisddetf->GetWeightReal(p);
117 Double_t wsi = alisddetf->GetWeightImag(p);
118 if(direction == -1) wsi = -wsi;
119 Double_t xr = *(real+k+m);
120 Double_t xi = *(imag+k+m);
121 *(real+k+m) = wsr*(*(real+k)-xr) - wsi*(*(imag+k)-xi);
122 *(imag+k+m) = wsr*(*(imag+k)-xi) + wsi*(*(real+k)-xr);
123 *(real+k) += xr;
124 *(imag+k) += xi;
125 p += m2;
126 } // end for k
127 } // end for j
128 m1 = m;
129 m /= 2;
130 m2 += m2;
8a33ae9e 131 } // end for i
b0f5e3fc 132
8a33ae9e 133 for(j=0; j<samples; j++) {
50d05d7b 134 Int_t j1 = j;
135 Int_t p = 0;
136 Int_t i1;
137 for(i1=1; i1<=l; i1++) {
138 Int_t j2 = j1;
139 j1 /= 2;
140 p = p + p + j2 - j1 - j1;
141 } // end for i1
142 if(p >= j) {
143 Double_t xr = *(real+j);
144 Double_t xi = *(imag+j);
145 *(real+j) = *(real+p);
146 *(imag+j) = *(imag+p);
147 *(real+p) = xr;
148 *(imag+p) = xi;
149 } // end if p>=j
8a33ae9e 150 } // end for j
151 if(direction == -1) {
50d05d7b 152 for(i=0; i<samples; i++) {
153 *(real+i) /= samples;
154 *(imag+i) /= samples;
155 } // end for i
8a33ae9e 156 } // end if direction == -1
50d05d7b 157 return;
b0f5e3fc 158}
8a33ae9e 159//______________________________________________________________________
b0f5e3fc 160AliITSsimulationSDD::AliITSsimulationSDD(){
8a33ae9e 161 // Default constructor
162
163 fResponse = 0;
164 fSegmentation = 0;
165 fHis = 0;
50d05d7b 166// fpList = 0;
8a33ae9e 167 fHitMap2 = 0;
48058160 168 fHitSigMap2 = 0;
169 fHitNoiMap2 = 0;
8a33ae9e 170 fElectronics = 0;
171 fStream = 0;
172 fInZR = 0;
173 fInZI = 0;
174 fOutZR = 0;
175 fOutZI = 0;
176 fNofMaps = 0;
177 fMaxNofSamples = 0;
178 fITS = 0;
8604b270 179 fTreeB = 0;
43217ad9 180 fAnodeFire = 0;
8a33ae9e 181 SetScaleFourier();
182 SetPerpendTracksFlag();
50d05d7b 183 SetCrosstalkFlag();
8a33ae9e 184 SetDoFFT();
185 SetCheckNoise();
b0f5e3fc 186}
8a33ae9e 187//______________________________________________________________________
188AliITSsimulationSDD::AliITSsimulationSDD(AliITSsimulationSDD &source){
189 // Copy constructor to satify Coding roules only.
190
191 if(this==&source) return;
c7a4dac0 192 Error("AliITSsimulationSSD","Not allowed to make a copy of "
50d05d7b 193 "AliITSsimulationSDD Using default creater instead");
8a33ae9e 194 AliITSsimulationSDD();
b0f5e3fc 195}
8a33ae9e 196//______________________________________________________________________
c7a4dac0 197AliITSsimulationSDD& AliITSsimulationSDD::operator=(AliITSsimulationSDD &src){
8a33ae9e 198 // Assignment operator to satify Coding roules only.
199
c7a4dac0 200 if(this==&src) return *this;
201 Error("AliITSsimulationSSD","Not allowed to make a = with "
50d05d7b 202 "AliITSsimulationSDD Using default creater instead");
8a33ae9e 203 return *this ;
b0f5e3fc 204}
8a33ae9e 205//______________________________________________________________________
c7a4dac0 206AliITSsimulationSDD::AliITSsimulationSDD(AliITSsegmentation *seg,
50d05d7b 207 AliITSresponse *resp){
c7a4dac0 208 // Standard Constructor
209
c7a4dac0 210 fResponse = 0;
211 fSegmentation = 0;
212 fHis = 0;
50d05d7b 213// fpList = 0;
c7a4dac0 214 fHitMap2 = 0;
48058160 215 fHitSigMap2 = 0;
216 fHitNoiMap2 = 0;
c7a4dac0 217 fElectronics = 0;
218 fStream = 0;
219 fInZR = 0;
220 fInZI = 0;
221 fOutZR = 0;
222 fOutZI = 0;
223 fNofMaps = 0;
224 fMaxNofSamples = 0;
225 fITS = 0;
226 fTreeB = 0;
227
228 Init((AliITSsegmentationSDD*)seg,(AliITSresponseSDD*)resp);
229}
230//______________________________________________________________________
231void AliITSsimulationSDD::Init(AliITSsegmentationSDD *seg,
50d05d7b 232 AliITSresponseSDD *resp){
38867c90 233 // Standard Constructor
ece86d9a 234
38867c90 235 fResponse = resp;
236 fSegmentation = seg;
237 SetScaleFourier();
238 SetPerpendTracksFlag();
50d05d7b 239 SetCrosstalkFlag();
38867c90 240 SetDoFFT();
241 SetCheckNoise();
b0f5e3fc 242
50d05d7b 243 fpList = new AliITSpList( fSegmentation->Npz(),
244 fScaleSize*fSegmentation->Npx() );
48058160 245 fHitSigMap2 = new AliITSMapA2(fSegmentation,fScaleSize,1);
246 fHitNoiMap2 = new AliITSMapA2(fSegmentation,fScaleSize,1);
247 fHitMap2 = fHitSigMap2;
b0f5e3fc 248
8a33ae9e 249 fNofMaps = fSegmentation->Npz();
250 fMaxNofSamples = fSegmentation->Npx();
43217ad9 251 fAnodeFire = new Bool_t [fNofMaps];
252
38867c90 253 Float_t sddLength = fSegmentation->Dx();
8a33ae9e 254 Float_t sddWidth = fSegmentation->Dz();
b0f5e3fc 255
8a33ae9e 256 Int_t dummy = 0;
38867c90 257 Float_t anodePitch = fSegmentation->Dpz(dummy);
8a33ae9e 258 Double_t timeStep = (Double_t)fSegmentation->Dpx(dummy);
259 Float_t driftSpeed = fResponse->DriftSpeed();
b0f5e3fc 260
38867c90 261 if(anodePitch*(fNofMaps/2) > sddWidth) {
50d05d7b 262 Warning("AliITSsimulationSDD",
263 "Too many anodes %d or too big pitch %f \n",
264 fNofMaps/2,anodePitch);
38867c90 265 } // end if
b0f5e3fc 266
38867c90 267 if(timeStep*fMaxNofSamples < sddLength/driftSpeed) {
50d05d7b 268 Error("AliITSsimulationSDD",
269 "Time Interval > Allowed Time Interval: exit\n");
270 return;
38867c90 271 } // end if
b0f5e3fc 272
38867c90 273 fElectronics = new AliITSetfSDD(timeStep/fScaleSize,
50d05d7b 274 fResponse->Electronics());
b0f5e3fc 275
38867c90 276 char opt1[20], opt2[20];
277 fResponse->ParamOptions(opt1,opt2);
8a33ae9e 278 fParam = opt2;
38867c90 279 char *same = strstr(opt1,"same");
280 if (same) {
50d05d7b 281 fNoise.Set(0);
282 fBaseline.Set(0);
38867c90 283 } else {
50d05d7b 284 fNoise.Set(fNofMaps);
285 fBaseline.Set(fNofMaps);
38867c90 286 } // end if
b0f5e3fc 287
38867c90 288 const char *kopt=fResponse->ZeroSuppOption();
b9d0a01d 289 if (strstr(fParam.Data(),"file") ) {
50d05d7b 290 fD.Set(fNofMaps);
291 fT1.Set(fNofMaps);
292 if (strstr(kopt,"2D")) {
293 fT2.Set(fNofMaps);
b0f5e3fc 294 fTol.Set(0);
295 Init2D(); // desactivate if param change module by module
50d05d7b 296 } else if(strstr(kopt,"1D")) {
b0f5e3fc 297 fT2.Set(2);
298 fTol.Set(2);
299 Init1D(); // desactivate if param change module by module
50d05d7b 300 } // end if strstr
38867c90 301 } else {
50d05d7b 302 fD.Set(2);
303 fTol.Set(2);
304 fT1.Set(2);
305 fT2.Set(2);
306 SetCompressParam();
38867c90 307 } // end if else strstr
b0f5e3fc 308
8a33ae9e 309 Bool_t write = fResponse->OutputOption();
38867c90 310 if(write && strstr(kopt,"2D")) MakeTreeB();
b0f5e3fc 311
38867c90 312 // call here if baseline does not change by module
313 // ReadBaseline();
b0f5e3fc 314
8a33ae9e 315 fITS = (AliITS*)gAlice->GetModule("ITS");
316 Int_t size = fNofMaps*fMaxNofSamples;
317 fStream = new AliITSInStream(size);
b0f5e3fc 318
38867c90 319 fInZR = new Double_t [fScaleSize*fMaxNofSamples];
320 fInZI = new Double_t [fScaleSize*fMaxNofSamples];
321 fOutZR = new Double_t [fScaleSize*fMaxNofSamples];
322 fOutZI = new Double_t [fScaleSize*fMaxNofSamples];
5d18fa90 323
b0f5e3fc 324}
8a33ae9e 325//______________________________________________________________________
b0f5e3fc 326AliITSsimulationSDD::~AliITSsimulationSDD() {
8a33ae9e 327 // destructor
328
50d05d7b 329// delete fpList;
48058160 330 delete fHitSigMap2;
331 delete fHitNoiMap2;
8a33ae9e 332 delete fStream;
333 delete fElectronics;
334
8a33ae9e 335 fITS = 0;
336
337 if (fHis) {
50d05d7b 338 fHis->Delete();
339 delete fHis;
8a33ae9e 340 } // end if fHis
341 if(fTreeB) delete fTreeB;
342 if(fInZR) delete [] fInZR;
50d05d7b 343 if(fInZI) delete [] fInZI;
8a33ae9e 344 if(fOutZR) delete [] fOutZR;
345 if(fOutZI) delete [] fOutZI;
43217ad9 346 if(fAnodeFire) delete [] fAnodeFire;
b0f5e3fc 347}
8a33ae9e 348//______________________________________________________________________
50d05d7b 349void AliITSsimulationSDD::InitSimulationModule( Int_t module, Int_t event ) {
c7a4dac0 350 // create maps to build the lists of tracks for each summable digit
50d05d7b 351 fModule = module;
352 fEvent = event;
353 ClearMaps();
43217ad9 354 memset(fAnodeFire,0,sizeof(Bool_t)*fNofMaps);
50d05d7b 355}
356//______________________________________________________________________
357void AliITSsimulationSDD::ClearMaps() {
358 // clear maps
359 fpList->ClearMap();
48058160 360 fHitSigMap2->ClearMap();
361 fHitNoiMap2->ClearMap();
50d05d7b 362}
363//______________________________________________________________________
364void AliITSsimulationSDD::SDigitiseModule( AliITSmodule *mod, Int_t md, Int_t ev){
365 // digitize module using the "slow" detector simulator creating
366 // summable digits.
c7a4dac0 367
368 TObjArray *fHits = mod->GetHits();
369 Int_t nhits = fHits->GetEntriesFast();
50d05d7b 370 if( !nhits ) return;
c7a4dac0 371
50d05d7b 372 InitSimulationModule( md, ev );
373 HitsToAnalogDigits( mod );
48058160 374 ChargeToSignal( kFALSE ); // - Process signal without add noise
375 fHitMap2 = fHitNoiMap2; // - Swap to noise map
376 ChargeToSignal( kTRUE ); // - Process only noise
377 fHitMap2 = fHitSigMap2; // - Return to signal map
50d05d7b 378 WriteSDigits();
379 ClearMaps();
380}
381//______________________________________________________________________
48058160 382Bool_t AliITSsimulationSDD::AddSDigitsToModule( TClonesArray *pItemArray, Int_t mask ) {
50d05d7b 383 // Add Summable digits to module maps.
48058160 384 Int_t nItems = pItemArray->GetEntries();
385 Double_t maxadc = fResponse->MaxAdc();
43217ad9 386 //Bool_t sig = kFALSE;
48058160 387
50d05d7b 388 // cout << "Adding "<< nItems <<" SDigits to module " << fModule << endl;
389 for( Int_t i=0; i<nItems; i++ ) {
390 AliITSpListItem * pItem = (AliITSpListItem *)(pItemArray->At( i ));
391 if( pItem->GetModule() != fModule ) {
392 Error( "AliITSsimulationSDD",
393 "Error reading, SDigits module %d != current module %d: exit\n",
394 pItem->GetModule(), fModule );
43217ad9 395 return kFALSE;
50d05d7b 396 } // end if
48058160 397
43217ad9 398 // if(pItem->GetSignal()>0.0 ) sig = kTRUE;
399
48058160 400 fpList->AddItemTo( mask, pItem ); // Add SignalAfterElect + noise
401 AliITSpListItem * pItem2 = fpList->GetpListItem( pItem->GetIndex() );
402 Double_t sigAE = pItem2->GetSignalAfterElect();
403 if( sigAE >= maxadc ) sigAE = maxadc-1; // avoid overflow signal
404 Int_t ia;
405 Int_t it;
406 fpList->GetMapIndex( pItem->GetIndex(), ia, it );
407 fHitMap2->SetHit( ia, it, sigAE );
43217ad9 408 fAnodeFire[ia] = kTRUE;
50d05d7b 409 }
43217ad9 410 return kTRUE;
48058160 411}
50d05d7b 412//______________________________________________________________________
413void AliITSsimulationSDD::FinishSDigitiseModule() {
414 // digitize module using the "slow" detector simulator from
415 // the sum of summable digits.
416 FinishDigits() ;
417 ClearMaps();
c7a4dac0 418}
419//______________________________________________________________________
b0f5e3fc 420void AliITSsimulationSDD::DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
8a33ae9e 421 // create maps to build the lists of tracks for each digit
b0f5e3fc 422
423 TObjArray *fHits = mod->GetHits();
8a33ae9e 424 Int_t nhits = fHits->GetEntriesFast();
8a33ae9e 425
50d05d7b 426 InitSimulationModule( md, ev );
427
428 if( !nhits && fCheckNoise ) {
48058160 429 ChargeToSignal( kTRUE ); // process noise
ece86d9a 430 GetNoise();
50d05d7b 431 ClearMaps();
ece86d9a 432 return;
50d05d7b 433 } else
434 if( !nhits ) return;
48058160 435
50d05d7b 436 HitsToAnalogDigits( mod );
48058160 437 ChargeToSignal( kTRUE ); // process signal + noise
438
439 for( Int_t i=0; i<fNofMaps; i++ ) {
440 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
441 Int_t jdx = j*fScaleSize;
442 Int_t index = fpList->GetHitIndex( i, j );
443 AliITSpListItem pItemTmp2( fModule, index, 0. );
444 // put the fScaleSize analog digits in only one
445 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
446 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
447 if( pItemTmp == 0 ) continue;
448 pItemTmp2.Add( pItemTmp );
449 }
450 fpList->DeleteHit( i, j );
451 fpList->AddItemTo( 0, &pItemTmp2 );
452 }
453 }
454
50d05d7b 455 FinishDigits();
456 ClearMaps();
c7a4dac0 457}
458//______________________________________________________________________
50d05d7b 459void AliITSsimulationSDD::FinishDigits() {
c7a4dac0 460 // introduce the electronics effects and do zero-suppression if required
8a33ae9e 461
50d05d7b 462 ApplyDeadChannels();
463 if( fCrosstalkFlag ) ApplyCrosstalk();
464
465 const char *kopt = fResponse->ZeroSuppOption();
466 ZeroSuppression( kopt );
c7a4dac0 467}
468//______________________________________________________________________
50d05d7b 469void AliITSsimulationSDD::HitsToAnalogDigits( AliITSmodule *mod ) {
c7a4dac0 470 // create maps to build the lists of tracks for each digit
471
472 TObjArray *fHits = mod->GetHits();
473 Int_t nhits = fHits->GetEntriesFast();
50d05d7b 474// Int_t arg[6] = {0,0,0,0,0,0};
8a33ae9e 475 Int_t dummy = 0;
476 Int_t nofAnodes = fNofMaps/2;
477 Float_t sddLength = fSegmentation->Dx();
478 Float_t sddWidth = fSegmentation->Dz();
479 Float_t anodePitch = fSegmentation->Dpz(dummy);
480 Float_t timeStep = fSegmentation->Dpx(dummy);
481 Float_t driftSpeed = fResponse->DriftSpeed();
482 Float_t maxadc = fResponse->MaxAdc();
483 Float_t topValue = fResponse->DynamicRange();
484 Float_t cHloss = fResponse->ChargeLoss();
485 Float_t norm = maxadc/topValue;
486 Float_t dfCoeff, s1; fResponse->DiffCoeff(dfCoeff,s1); // Signal 2d Shape
487 Double_t eVpairs = 3.6; // electron pair energy eV.
488 Float_t nsigma = fResponse->NSigmaIntegration(); //
489 Int_t nlookups = fResponse->GausNLookUp(); //
48058160 490 Float_t jitter = ((AliITSresponseSDD*)fResponse)->JitterError(); //
44a312c3 491
b0f5e3fc 492 // Piergiorgio's part (apart for few variables which I made float
493 // when i thought that can be done
b0f5e3fc 494 // Fill detector maps with GEANT hits
495 // loop over hits in the module
496
8a33ae9e 497 const Float_t kconv = 1.0e+6; // GeV->KeV
498 Int_t itrack = 0;
499 Int_t hitDetector; // detector number (lay,lad,hitDetector)
500 Int_t iWing; // which detector wing/side.
501 Int_t detector; // 2*(detector-1)+iWing
502 Int_t ii,kk,ka,kt; // loop indexs
503 Int_t ia,it,index; // sub-pixel integration indexies
504 Int_t iAnode; // anode number.
505 Int_t timeSample; // time buckett.
506 Int_t anodeWindow; // anode direction charge integration width
507 Int_t timeWindow; // time direction charge integration width
508 Int_t jamin,jamax; // anode charge integration window
509 Int_t jtmin,jtmax; // time charge integration window
510 Int_t ndiv; // Anode window division factor.
511 Int_t nsplit; // the number of splits in anode and time windows==1.
512 Int_t nOfSplits; // number of times track length is split into
513 Float_t nOfSplitsF; // Floating point version of nOfSplits.
514 Float_t kkF; // Floating point version of loop index kk.
515 Float_t pathInSDD; // Track length in SDD.
516 Float_t drPath; // average position of track in detector. in microns
517 Float_t drTime; // Drift time
518 Float_t nmul; // drift time window multiplication factor.
519 Float_t avDrft; // x position of path length segment in cm.
520 Float_t avAnode; // Anode for path length segment in Anode number (float)
521 Float_t xAnode; // Floating point anode number.
522 Float_t driftPath; // avDrft in microns.
523 Float_t width; // width of signal at anodes.
524 Double_t depEnergy; // Energy deposited in this GEANT step.
525 Double_t xL[3],dxL[3]; // local hit coordinates and diff.
526 Double_t sigA; // sigma of signal at anode.
527 Double_t sigT; // sigma in time/drift direction for track segment
528 Double_t aStep,aConst; // sub-pixel size and offset anode
529 Double_t tStep,tConst; // sub-pixel size and offset time
530 Double_t amplitude; // signal amplitude for track segment in nanoAmpere
531 Double_t chargeloss; // charge loss for track segment.
532 Double_t anodeAmplitude; // signal amplitude in anode direction
533 Double_t aExpo; // exponent of Gaussian anode direction
534 Double_t timeAmplitude; // signal amplitude in time direction
535 Double_t tExpo; // exponent of Gaussian time direction
536// Double_t tof; // Time of flight in ns of this step.
44a312c3 537
b0f5e3fc 538 for(ii=0; ii<nhits; ii++) {
50d05d7b 539 if(!mod->LineSegmentL(ii,xL[0],dxL[0],xL[1],dxL[1],xL[2],dxL[2],
540 depEnergy,itrack)) continue;
48058160 541 xL[0] += 0.0001*gRandom->Gaus( 0, jitter ); //
50d05d7b 542 depEnergy *= kconv;
543 hitDetector = mod->GetDet();
544 //tof = 1.E+09*(mod->GetHit(ii)->GetTOF()); // tof in ns.
545 //if(tof>sddLength/driftSpeed) continue; // hit happed too late.
546
547 // scale path to simulate a perpendicular track
548 // continue if the particle did not lose energy
549 // passing through detector
550 if (!depEnergy) {
551 Warning("HitsToAnalogDigits",
552 "fTrack = %d hit=%d module=%d This particle has"
553 " passed without losing energy!",
554 itrack,ii,mod->GetIndex());
555 continue;
556 } // end if !depEnergy
557
558 pathInSDD = TMath::Sqrt(dxL[0]*dxL[0]+dxL[1]*dxL[1]+dxL[2]*dxL[2]);
559
560 if (fFlag && pathInSDD) { depEnergy *= (0.03/pathInSDD); }
561 drPath = 10000.*(dxL[0]+2.*xL[0])*0.5;
562 if(drPath < 0) drPath = -drPath;
563 drPath = sddLength-drPath;
564 if(drPath < 0) {
565 Warning("HitsToAnalogDigits",
566 "negative drift path drPath=%e sddLength=%e dxL[0]=%e "
567 "xL[0]=%e",
568 drPath,sddLength,dxL[0],xL[0]);
569 continue;
570 } // end if drPath < 0
571
572 // Compute number of segments to brake step path into
573 drTime = drPath/driftSpeed; // Drift Time
574 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);// Sigma along the anodes
575 // calcuate the number of time the path length should be split into.
576 nOfSplits = (Int_t) (1. + 10000.*pathInSDD/sigA);
577 if(fFlag) nOfSplits = 1;
578
579 // loop over path segments, init. some variables.
580 depEnergy /= nOfSplits;
581 nOfSplitsF = (Float_t) nOfSplits;
582 for(kk=0;kk<nOfSplits;kk++) { // loop over path segments
583 kkF = (Float_t) kk + 0.5;
584 avDrft = xL[0]+dxL[0]*kkF/nOfSplitsF;
585 avAnode = xL[2]+dxL[2]*kkF/nOfSplitsF;
586 driftPath = 10000.*avDrft;
587
588 iWing = 2; // Assume wing is 2
589 if(driftPath < 0) { // if wing is not 2 it is 1.
590 iWing = 1;
591 driftPath = -driftPath;
592 } // end if driftPath < 0
593 driftPath = sddLength-driftPath;
594 detector = 2*(hitDetector-1) + iWing;
595 if(driftPath < 0) {
596 Warning("HitsToAnalogDigits","negative drift path "
597 "driftPath=%e sddLength=%e avDrft=%e dxL[0]=%e "
598 "xL[0]=%e",driftPath,sddLength,avDrft,dxL[0],xL[0]);
599 continue;
600 } // end if driftPath < 0
601
602 // Drift Time
603 drTime = driftPath/driftSpeed; // drift time for segment.
604 timeSample = (Int_t) (fScaleSize*drTime/timeStep + 1);
605 // compute time Sample including tof information. The tof only
606 // effects the time of the signal is recoreded and not the
607 // the defusion.
608 // timeSample = (Int_t) (fScaleSize*(drTime+tof)/timeStep + 1);
609 if(timeSample > fScaleSize*fMaxNofSamples) {
610 Warning("HitsToAnalogDigits","Wrong Time Sample: %e",
611 timeSample);
612 continue;
613 } // end if timeSample > fScaleSize*fMaxNoofSamples
614
615 // Anode
616 xAnode = 10000.*(avAnode)/anodePitch + nofAnodes/2; // +1?
617 if(xAnode*anodePitch > sddWidth || xAnode*anodePitch < 0.)
618 Warning("HitsToAnalogDigits",
619 "Exceedubg sddWidth=%e Z = %e",
620 sddWidth,xAnode*anodePitch);
621 iAnode = (Int_t) (1.+xAnode); // xAnode?
622 if(iAnode < 1 || iAnode > nofAnodes) {
623 Warning("HitToAnalogDigits","Wrong iAnode: 1<%d>%d",
624 iAnode,nofAnodes);
625 continue;
626 } // end if iAnode < 1 || iAnode > nofAnodes
627
628 // store straight away the particle position in the array
629 // of particles and take idhit=ii only when part is entering (this
630 // requires FillModules() in the macro for analysis) :
b0f5e3fc 631
50d05d7b 632 // Sigma along the anodes for track segment.
633 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);
634 sigT = sigA/driftSpeed;
635 // Peak amplitude in nanoAmpere
636 amplitude = fScaleSize*160.*depEnergy/
637 (timeStep*eVpairs*2.*acos(-1.)*sigT*sigA);
638 amplitude *= timeStep/25.; // WARNING!!!!! Amplitude scaling to
639 // account for clock variations
8a33ae9e 640 // (reference value: 40 MHz)
50d05d7b 641 chargeloss = 1.-cHloss*driftPath/1000;
642 amplitude *= chargeloss;
643 width = 2.*nsigma/(nlookups-1);
644 // Spread the charge
645 // Pixel index
646 ndiv = 2;
647 nmul = 3.;
648 if(drTime > 1200.) {
649 ndiv = 4;
650 nmul = 1.5;
651 } // end if drTime > 1200.
652 // Sub-pixel index
653 nsplit = 4; // hard-wired //nsplit=4;nsplit = (nsplit+1)/2*2;
654 // Sub-pixel size see computation of aExpo and tExpo.
655 aStep = anodePitch/(nsplit*fScaleSize*sigA);
656 aConst = xAnode*anodePitch/sigA;
657 tStep = timeStep/(nsplit*fScaleSize*sigT);
658 tConst = drTime/sigT;
659 // Define SDD window corresponding to the hit
660 anodeWindow = (Int_t)(fScaleSize*nsigma*sigA/anodePitch+1);
661 timeWindow = (Int_t) (fScaleSize*nsigma*sigT/timeStep+1.);
662 jamin = (iAnode - anodeWindow/ndiv - 1)*fScaleSize*nsplit +1;
663 jamax = (iAnode + anodeWindow/ndiv)*fScaleSize*nsplit;
664 if(jamin <= 0) jamin = 1;
665 if(jamax > fScaleSize*nofAnodes*nsplit)
666 jamax = fScaleSize*nofAnodes*nsplit;
667 // jtmin and jtmax are Hard-wired
668 jtmin = (Int_t)(timeSample-timeWindow*nmul-1)*nsplit+1;
669 jtmax = (Int_t)(timeSample+timeWindow*nmul)*nsplit;
670 if(jtmin <= 0) jtmin = 1;
671 if(jtmax > fScaleSize*fMaxNofSamples*nsplit)
672 jtmax = fScaleSize*fMaxNofSamples*nsplit;
673 // Spread the charge in the anode-time window
674 for(ka=jamin; ka <=jamax; ka++) {
675 ia = (ka-1)/(fScaleSize*nsplit) + 1;
676 if(ia <= 0) {
677 Warning("HitsToAnalogDigits","ia < 1: ");
678 continue;
679 } // end if
680 if(ia > nofAnodes) ia = nofAnodes;
681 aExpo = (aStep*(ka-0.5)-aConst);
682 if(TMath::Abs(aExpo) > nsigma) anodeAmplitude = 0.;
683 else {
684 dummy = (Int_t) ((aExpo+nsigma)/width);
685 anodeAmplitude = amplitude*fResponse->GausLookUp(dummy);
686 } // end if TMath::Abs(aEspo) > nsigma
687 // index starts from 0
688 index = ((detector+1)%2)*nofAnodes+ia-1;
689 if(anodeAmplitude) for(kt=jtmin; kt<=jtmax; kt++) {
690 it = (kt-1)/nsplit+1; // it starts from 1
691 if(it<=0){
692 Warning("HitsToAnalogDigits","it < 1:");
693 continue;
694 } // end if
695 if(it>fScaleSize*fMaxNofSamples)
696 it = fScaleSize*fMaxNofSamples;
697 tExpo = (tStep*(kt-0.5)-tConst);
698 if(TMath::Abs(tExpo) > nsigma) timeAmplitude = 0.;
699 else {
700 dummy = (Int_t) ((tExpo+nsigma)/width);
701 timeAmplitude = anodeAmplitude*
702 fResponse->GausLookUp(dummy);
703 } // end if TMath::Abs(tExpo) > nsigma
704 // build the list of Sdigits for this module
705// arg[0] = index;
706// arg[1] = it;
707// arg[2] = itrack; // track number
708// arg[3] = ii-1; // hit number.
709 timeAmplitude *= norm;
710 timeAmplitude *= 10;
711// ListOfFiredCells(arg,timeAmplitude,alst,padr);
48058160 712 Double_t charge = timeAmplitude;
713 charge += fHitMap2->GetSignal(index,it-1);
714 fHitMap2->SetHit(index, it-1, charge);
50d05d7b 715 fpList->AddSignal(index,it-1,itrack,ii-1,
716 mod->GetIndex(),timeAmplitude);
43217ad9 717 fAnodeFire[index] = kTRUE;
50d05d7b 718 } // end if anodeAmplitude and loop over time in window
719 } // loop over anodes in window
720 } // end loop over "sub-hits"
44a312c3 721 } // end loop over hits
b0f5e3fc 722}
50d05d7b 723
724/*
8a33ae9e 725//______________________________________________________________________
b0f5e3fc 726void AliITSsimulationSDD::ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,
8a33ae9e 727 TObjArray *alist,TClonesArray *padr){
728 // Returns the list of "fired" cells.
729
730 Int_t index = arg[0];
731 Int_t ik = arg[1];
732 Int_t idtrack = arg[2];
733 Int_t idhit = arg[3];
734 Int_t counter = arg[4];
735 Int_t countadr = arg[5];
736 Double_t charge = timeAmplitude;
737 charge += fHitMap2->GetSignal(index,ik-1);
738 fHitMap2->SetHit(index, ik-1, charge);
739
740 Int_t digits[3];
741 Int_t it = (Int_t)((ik-1)/fScaleSize);
742 digits[0] = index;
743 digits[1] = it;
744 digits[2] = (Int_t)timeAmplitude;
745 Float_t phys;
746 if (idtrack >= 0) phys = (Float_t)timeAmplitude;
747 else phys = 0;
748
749 Double_t cellcharge = 0.;
750 AliITSTransientDigit* pdigit;
751 // build the list of fired cells and update the info
752 if (!fHitMap1->TestHit(index, it)) {
50d05d7b 753 new((*padr)[countadr++]) TVector(3);
754 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
755 trinfo(0) = (Float_t)idtrack;
756 trinfo(1) = (Float_t)idhit;
757 trinfo(2) = (Float_t)timeAmplitude;
758
759 alist->AddAtAndExpand(new AliITSTransientDigit(phys,digits),counter);
760 fHitMap1->SetHit(index, it, counter);
761 counter++;
762 pdigit=(AliITSTransientDigit*)alist->At(alist->GetLast());
763 // list of tracks
764 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
765 trlist->Add(&trinfo);
8a33ae9e 766 } else {
50d05d7b 767 pdigit = (AliITSTransientDigit*) fHitMap1->GetHit(index, it);
768 for(Int_t kk=0;kk<fScaleSize;kk++) {
769 cellcharge += fHitMap2->GetSignal(index,fScaleSize*it+kk);
770 } // end for kk
771 // update charge
772 (*pdigit).fSignal = (Int_t)cellcharge;
773 (*pdigit).fPhysics += phys;
774 // update list of tracks
775 TObjArray* trlist = (TObjArray*)pdigit->TrackList();
776 Int_t lastentry = trlist->GetLast();
777 TVector *ptrkp = (TVector*)trlist->At(lastentry);
778 TVector &trinfo = *ptrkp;
779 Int_t lasttrack = Int_t(trinfo(0));
780 Float_t lastcharge=(trinfo(2));
781 if (lasttrack==idtrack ) {
782 lastcharge += (Float_t)timeAmplitude;
783 trlist->RemoveAt(lastentry);
784 trinfo(0) = lasttrack;
785 trinfo(1) = idhit;
786 trinfo(2) = lastcharge;
787 trlist->AddAt(&trinfo,lastentry);
788 } else {
789 new((*padr)[countadr++]) TVector(3);
790 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
791 trinfo(0) = (Float_t)idtrack;
792 trinfo(1) = (Float_t)idhit;
793 trinfo(2) = (Float_t)timeAmplitude;
794 trlist->Add(&trinfo);
795 } // end if lasttrack==idtrack
b0f5e3fc 796
797#ifdef print
50d05d7b 798 // check the track list - debugging
799 Int_t trk[20], htrk[20];
800 Float_t chtrk[20];
801 Int_t nptracks = trlist->GetEntriesFast();
802 if (nptracks > 2) {
803 Int_t tr;
804 for (tr=0;tr<nptracks;tr++) {
805 TVector *pptrkp = (TVector*)trlist->At(tr);
806 TVector &pptrk = *pptrkp;
807 trk[tr] = Int_t(pptrk(0));
808 htrk[tr] = Int_t(pptrk(1));
809 chtrk[tr] = (pptrk(2));
810 cout << "nptracks "<<nptracks << endl;
811 } // end for tr
812 } // end if nptracks
b0f5e3fc 813#endif
8a33ae9e 814 } // end if pdigit
b0f5e3fc 815
8a33ae9e 816 // update counter and countadr for next call.
817 arg[4] = counter;
818 arg[5] = countadr;
b0f5e3fc 819}
50d05d7b 820*/
821
b0f5e3fc 822//____________________________________________
50d05d7b 823void AliITSsimulationSDD::AddDigit( Int_t i, Int_t j, Int_t signal ) {
824 // Adds a Digit.
ee86d557 825 Int_t size = AliITSdigitSPD::GetNTracks();
5c5273c2 826 Int_t digits[3];
827 Int_t * tracks = new Int_t[size];
828 Int_t * hits = new Int_t[size];
829 Float_t phys;
830 Float_t * charges = new Float_t[size];
50d05d7b 831
832 if( fResponse->Do10to8() ) signal = Convert8to10( signal );
833 digits[0] = i;
834 digits[1] = j;
835 digits[2] = signal;
836
48058160 837 AliITSpListItem *pItem = fpList->GetpListItem( i, j );
838 if( pItem == 0 ) {
839 phys = 0.0;
ee86d557 840 for( Int_t l=0; l<size; l++ ) {
48058160 841 tracks[l] = 0;
842 hits[l] = 0;
843 charges[l] = 0.0;
844 }
845 } else {
846 Int_t idtrack = pItem->GetTrack( 0 );
847 if( idtrack >= 0 ) phys = pItem->GetSignal();
848 else phys = 0.0;
849
ee86d557 850 for( Int_t l=0; l<size; l++ ) if(l<pItem->GetMaxKept()) {
48058160 851 tracks[l] = pItem->GetTrack( l );
852 hits[l] = pItem->GetHit( l );
853 charges[l] = pItem->GetSignal( l );
ee86d557 854 }else{
855 tracks[l] = -3;
856 hits[l] = -1;
857 charges[l] = 0.0;
858 }// end for if
50d05d7b 859 }
b0f5e3fc 860
50d05d7b 861 fITS->AddSimDigit( 1, phys, digits, tracks, hits, charges );
5c5273c2 862 delete [] tracks;
863 delete [] hits;
864 delete [] charges;
50d05d7b 865}
866
867/*
868//____________________________________________
b0f5e3fc 869void AliITSsimulationSDD::AddDigit(Int_t i, Int_t j, Int_t signal){
8a33ae9e 870 // Adds a Digit.
b0f5e3fc 871 // tag with -1 signals coming from background tracks
872 // tag with -2 signals coming from pure electronic noise
873
e8189707 874 Int_t digits[3], tracks[3], hits[3];
b0f5e3fc 875 Float_t phys, charges[3];
876
e8189707 877 Int_t trk[20], htrk[20];
b0f5e3fc 878 Float_t chtrk[20];
879
ece86d9a 880 Bool_t do10to8=fResponse->Do10to8();
881
882 if(do10to8) signal=Convert8to10(signal);
b0f5e3fc 883 AliITSTransientDigit *obj = (AliITSTransientDigit*)fHitMap1->GetHit(i,j);
8a33ae9e 884 digits[0] = i;
885 digits[1] = j;
886 digits[2] = signal;
b0f5e3fc 887 if (!obj) {
888 phys=0;
889 Int_t k;
e8189707 890 for (k=0;k<3;k++) {
50d05d7b 891 tracks[k]=-2;
892 charges[k]=0;
893 hits[k]=-1;
894 } // end for k
e8189707 895 fITS->AddSimDigit(1,phys,digits,tracks,hits,charges);
b0f5e3fc 896 } else {
50d05d7b 897 phys=obj->fPhysics;
898 TObjArray* trlist=(TObjArray*)obj->TrackList();
899 Int_t nptracks=trlist->GetEntriesFast();
900 if (nptracks > 20) {
901 Warning("AddDigit","nptracks=%d > 20 nptracks set to 20",nptracks);
902 nptracks=20;
903 } // end if nptracks > 20
904 Int_t tr;
905 for (tr=0;tr<nptracks;tr++) {
906 TVector &pp =*((TVector*)trlist->At(tr));
907 trk[tr]=Int_t(pp(0));
908 htrk[tr]=Int_t(pp(1));
909 chtrk[tr]=(pp(2));
910 } // end for tr
911 if (nptracks > 1) {
912 SortTracks(trk,chtrk,htrk,nptracks);
913 } // end if nptracks > 1
914 Int_t i;
915 if (nptracks < 3 ) {
916 for (i=0; i<nptracks; i++) {
917 tracks[i]=trk[i];
918 charges[i]=chtrk[i];
919 hits[i]=htrk[i];
920 } // end for i
921 for (i=nptracks; i<3; i++) {
922 tracks[i]=-3;
923 hits[i]=-1;
924 charges[i]=0;
925 } // end for i
926 } else {
927 for (i=0; i<3; i++) {
928 tracks[i]=trk[i];
929 charges[i]=chtrk[i];
930 hits[i]=htrk[i];
931 } // end for i
932 } // end if/else nptracks < 3
933
934 fITS->AddSimDigit(1,phys,digits,tracks,hits,charges);
b0f5e3fc 935
8a33ae9e 936 } // end if/else !obj
b0f5e3fc 937}
50d05d7b 938
939
8a33ae9e 940//______________________________________________________________________
941void AliITSsimulationSDD::SortTracks(Int_t *tracks,Float_t *charges,
50d05d7b 942 Int_t *hits,Int_t ntr){
8a33ae9e 943 // Sort the list of tracks contributing to a given digit
944 // Only the 3 most significant tracks are acctually sorted
945 // Loop over signals, only 3 times
946
947 Float_t qmax;
948 Int_t jmax;
949 Int_t idx[3] = {-3,-3,-3};
950 Float_t jch[3] = {-3,-3,-3};
951 Int_t jtr[3] = {-3,-3,-3};
952 Int_t jhit[3] = {-3,-3,-3};
953 Int_t i,j,imax;
954
955 if (ntr<3) imax = ntr;
956 else imax = 3;
957 for(i=0;i<imax;i++){
50d05d7b 958 qmax = 0;
959 jmax = 0;
960 for(j=0;j<ntr;j++){
961 if((i == 1 && j == idx[i-1] )
962 ||(i == 2 && (j == idx[i-1] || j == idx[i-2]))) continue;
963 if(charges[j] > qmax) {
964 qmax = charges[j];
965 jmax=j;
966 } // end if charges[j]>qmax
967 } // end for j
968 if(qmax > 0) {
969 idx[i] = jmax;
970 jch[i] = charges[jmax];
971 jtr[i] = tracks[jmax];
972 jhit[i] = hits[jmax];
973 } // end if qmax > 0
8a33ae9e 974 } // end for i
975
976 for(i=0;i<3;i++){
50d05d7b 977 if (jtr[i] == -3) {
978 charges[i] = 0;
979 tracks[i] = -3;
980 hits[i] = -1;
981 } else {
982 charges[i] = jch[i];
983 tracks[i] = jtr[i];
984 hits[i] = jhit[i];
985 } // end if jtr[i] == -3
8a33ae9e 986 } // end for i
b0f5e3fc 987}
50d05d7b 988*/
8a33ae9e 989//______________________________________________________________________
48058160 990void AliITSsimulationSDD::ChargeToSignal(Bool_t bAddNoise) {
8a33ae9e 991 // add baseline, noise, electronics and ADC saturation effects
b0f5e3fc 992
8a33ae9e 993 char opt1[20], opt2[20];
994 fResponse->ParamOptions(opt1,opt2);
995 char *read = strstr(opt1,"file");
996 Float_t baseline, noise;
997
998 if (read) {
50d05d7b 999 static Bool_t readfile=kTRUE;
1000 //read baseline and noise from file
1001 if (readfile) ReadBaseline();
1002 readfile=kFALSE;
8a33ae9e 1003 } else fResponse->GetNoiseParam(noise,baseline);
1004
1005 Float_t contrib=0;
1006 Int_t i,k,kk;
1007 Float_t maxadc = fResponse->MaxAdc();
1008 if(!fDoFFT) {
50d05d7b 1009 for (i=0;i<fNofMaps;i++) {
43217ad9 1010 if( !fAnodeFire[i] ) continue;
50d05d7b 1011 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
1012 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
1013 fInZR[k] = fHitMap2->GetSignal(i,k);
48058160 1014 if( bAddNoise ) {
1015 contrib = (baseline + noise*gRandom->Gaus());
1016 fInZR[k] += contrib;
1017 }
50d05d7b 1018 } // end for k
1019 for(k=0; k<fMaxNofSamples; k++) {
1020 Double_t newcont = 0.;
1021 Double_t maxcont = 0.;
1022 for(kk=0;kk<fScaleSize;kk++) {
1023 newcont = fInZR[fScaleSize*k+kk];
1024 if(newcont > maxcont) maxcont = newcont;
1025 } // end for kk
1026 newcont = maxcont;
1027 if (newcont >= maxadc) newcont = maxadc -1;
1028 if(newcont >= baseline){
1029 Warning("","newcont=%d>=baseline=%d",newcont,baseline);
1030 } // end if
1031 // back to analog: ?
1032 fHitMap2->SetHit(i,k,newcont);
1033 } // end for k
1034 } // end for i loop over anodes
1035 return;
8a33ae9e 1036 } // end if DoFFT
ece86d9a 1037
ece86d9a 1038 for (i=0;i<fNofMaps;i++) {
43217ad9 1039 if( !fAnodeFire[i] ) continue;
50d05d7b 1040 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
1041 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
1042 fInZR[k] = fHitMap2->GetSignal(i,k);
48058160 1043 if( bAddNoise ) {
1044 contrib = (baseline + noise*gRandom->Gaus());
1045 fInZR[k] += contrib;
1046 }
50d05d7b 1047 fInZI[k] = 0.;
1048 } // end for k
1049 FastFourierTransform(fElectronics,&fInZR[0],&fInZI[0],1);
1050 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
1051 Double_t rw = fElectronics->GetTraFunReal(k);
1052 Double_t iw = fElectronics->GetTraFunImag(k);
1053 fOutZR[k] = fInZR[k]*rw - fInZI[k]*iw;
1054 fOutZI[k] = fInZR[k]*iw + fInZI[k]*rw;
1055 } // end for k
1056 FastFourierTransform(fElectronics,&fOutZR[0],&fOutZI[0],-1);
1057 for(k=0; k<fMaxNofSamples; k++) {
1058 Double_t newcont1 = 0.;
1059 Double_t maxcont1 = 0.;
1060 for(kk=0;kk<fScaleSize;kk++) {
1061 newcont1 = fOutZR[fScaleSize*k+kk];
1062 if(newcont1 > maxcont1) maxcont1 = newcont1;
1063 } // end for kk
1064 newcont1 = maxcont1;
1065 if (newcont1 >= maxadc) newcont1 = maxadc -1;
1066 fHitMap2->SetHit(i,k,newcont1);
1067 } // end for k
8a33ae9e 1068 } // end for i loop over anodes
ece86d9a 1069 return;
b0f5e3fc 1070}
50d05d7b 1071//____________________________________________________________________
1072void AliITSsimulationSDD::ApplyDeadChannels() {
1073 // Set dead channel signal to zero
1074 AliITSresponseSDD * response = (AliITSresponseSDD *)fResponse;
1075
1076 // nothing to do
1077 if( response->GetDeadModules() == 0 &&
1078 response->GetDeadChips() == 0 &&
1079 response->GetDeadChannels() == 0 )
1080 return;
1081
1082 static AliITS *iTS = (AliITS*)gAlice->GetModule( "ITS" );
1083
1084 Int_t fMaxNofSamples = fSegmentation->Npx();
1085 AliITSgeom *geom = iTS->GetITSgeom();
1086 Int_t firstSDDMod = geom->GetStartDet( 1 );
1087 // loop over wings
1088 for( Int_t j=0; j<2; j++ ) {
1089 Int_t mod = (fModule-firstSDDMod)*2 + j;
1090 for( Int_t u=0; u<response->Chips(); u++ )
1091 for( Int_t v=0; v<response->Channels(); v++ ) {
1092 Float_t Gain = response->Gain( mod, u, v );
1093 for( Int_t k=0; k<fMaxNofSamples; k++ ) {
1094 Int_t i = j*response->Chips()*response->Channels() +
1095 u*response->Channels() +
1096 v;
1097 Double_t signal = Gain * fHitMap2->GetSignal( i, k );
1098 fHitMap2->SetHit( i, k, signal ); ///
1099 }
1100 }
1101 }
1102}
1103//______________________________________________________________________
1104void AliITSsimulationSDD::ApplyCrosstalk() {
1105 // function add the crosstalk effect to signal
1106 // temporal function, should be checked...!!!
1107
1108 Int_t fNofMaps = fSegmentation->Npz();
1109 Int_t fMaxNofSamples = fSegmentation->Npx();
1110
1111 // create and inizialice crosstalk map
1112 Float_t* ctk = new Float_t[fNofMaps*fMaxNofSamples+1];
1113 if( ctk == NULL ) {
1114 Error( "ApplyCrosstalk", "no memory for temporal map: exit \n" );
1115 return;
1116 }
1117 memset( ctk, 0, sizeof(Float_t)*(fNofMaps*fMaxNofSamples+1) );
1118
1119 Float_t noise, baseline;
1120 fResponse->GetNoiseParam( noise, baseline );
1121
1122 for( Int_t z=0; z<fNofMaps; z++ ) {
1123 Bool_t on = kFALSE;
1124 Int_t tstart = 0;
1125 Int_t tstop = 0;
1126 Int_t nTsteps = 0;
1127
1128 for( Int_t l=0; l<fMaxNofSamples; l++ ) {
1129 Float_t fadc = (Float_t)fHitMap2->GetSignal( z, l );
1130 if( fadc > baseline ) {
1131 if( on == kFALSE && l<fMaxNofSamples-4 ) {
1132 Float_t fadc1 = (Float_t)fHitMap2->GetSignal( z, l+1 );
1133 if( fadc1 < fadc ) continue;
1134 on = kTRUE;
1135 nTsteps = 0;
1136 tstart = l;
1137 }
1138 nTsteps++;
1139 }
1140 else { // end fadc > baseline
1141 if( on == kTRUE ) {
1142 if( nTsteps > 2 ) {
1143 tstop = l;
1144 // make smooth derivative
1145 Float_t* dev = new Float_t[fMaxNofSamples+1];
1146 memset( dev, 0, sizeof(Float_t)*(fMaxNofSamples+1) );
1147 if( ctk == NULL ) {
1148 Error( "ApplyCrosstalk",
1149 "no memory for temporal array: exit \n" );
1150 return;
1151 }
1152 for( Int_t i=tstart; i<tstop; i++ ) {
1153 if( i > 2 && i < fMaxNofSamples-2 )
1154 dev[i] = -0.2*fHitMap2->GetSignal( z,i-2 )
1155 -0.1*fHitMap2->GetSignal( z,i-1 )
1156 +0.1*fHitMap2->GetSignal( z,i+1 )
1157 +0.2*fHitMap2->GetSignal( z,i+2 );
1158 }
1159
1160 // add crosstalk contribution to neibourg anodes
1161 for( Int_t i=tstart; i<tstop; i++ ) {
1162 Int_t anode = z - 1;
1163 Int_t i1 = (Int_t)((i-tstart)*.61+tstart+0.5); //
1164 Float_t ctktmp = -dev[i1] * 0.25;
1165 if( anode > 0 ) {
1166 ctk[anode*fMaxNofSamples+i] += ctktmp;
1167 }
1168 anode = z + 1;
1169 if( anode < fNofMaps ) {
1170 ctk[anode*fMaxNofSamples+i] += ctktmp;
1171 }
1172 }
1173 delete [] dev;
1174
1175 } // if( nTsteps > 2 )
1176 on = kFALSE;
1177 } // if( on == kTRUE )
1178 } // else
1179 }
1180 }
1181
1182 for( Int_t a=0; a<fNofMaps; a++ )
1183 for( Int_t t=0; t<fMaxNofSamples; t++ ) {
1184 Float_t signal = fHitMap2->GetSignal( a, t ) + ctk[a*fMaxNofSamples+t];
1185 fHitMap2->SetHit( a, t, signal );
1186 }
1187
1188 delete [] ctk;
1189}
8a33ae9e 1190//______________________________________________________________________
b0f5e3fc 1191void AliITSsimulationSDD::GetAnodeBaseline(Int_t i,Float_t &baseline,
1192 Float_t &noise){
8a33ae9e 1193 // Returns the Baseline for a particular anode.
1194 baseline = fBaseline[i];
1195 noise = fNoise[i];
b0f5e3fc 1196}
8a33ae9e 1197//______________________________________________________________________
b0f5e3fc 1198void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl,
1199 Int_t &th){
8a33ae9e 1200 // Returns the compression alogirthm parameters
1201 Int_t size = fD.GetSize();
1202 if (size > 2 ) {
50d05d7b 1203 db=fD[i]; tl=fT1[i]; th=fT2[i];
8a33ae9e 1204 } else {
50d05d7b 1205 if (size <= 2 && i>=fNofMaps/2) {
1206 db=fD[1]; tl=fT1[1]; th=fT2[1];
1207 } else {
1208 db=fD[0]; tl=fT1[0]; th=fT2[0];
1209 } // end if size <=2 && i>=fNofMaps/2
8a33ae9e 1210 } // end if size >2
b0f5e3fc 1211}
8a33ae9e 1212//______________________________________________________________________
b0f5e3fc 1213void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl){
8a33ae9e 1214 // returns the compression alogirthm parameters
1215 Int_t size = fD.GetSize();
b0f5e3fc 1216
8a33ae9e 1217 if (size > 2 ) {
50d05d7b 1218 db=fD[i]; tl=fT1[i];
8a33ae9e 1219 } else {
50d05d7b 1220 if (size <= 2 && i>=fNofMaps/2) {
1221 db=fD[1]; tl=fT1[1];
1222 } else {
1223 db=fD[0]; tl=fT1[0];
1224 } // end if size <=2 && i>=fNofMaps/2
8a33ae9e 1225 } // end if size > 2
b0f5e3fc 1226}
8a33ae9e 1227//______________________________________________________________________
b0f5e3fc 1228void AliITSsimulationSDD::SetCompressParam(){
8a33ae9e 1229 // Sets the compression alogirthm parameters
1230 Int_t cp[8],i;
1231
1232 fResponse->GiveCompressParam(cp);
1233 for (i=0; i<2; i++) {
50d05d7b 1234 fD[i] = cp[i];
1235 fT1[i] = cp[i+2];
1236 fT2[i] = cp[i+4];
1237 fTol[i] = cp[i+6];
8a33ae9e 1238 } // end for i
b0f5e3fc 1239}
8a33ae9e 1240//______________________________________________________________________
b0f5e3fc 1241void AliITSsimulationSDD::ReadBaseline(){
8a33ae9e 1242 // read baseline and noise from file - either a .root file and in this
1243 // case data should be organised in a tree with one entry for each
1244 // module => reading should be done accordingly
1245 // or a classic file and do smth. like this:
1246 // Read baselines and noise for SDD
b0f5e3fc 1247
1248 Int_t na,pos;
1249 Float_t bl,n;
e8189707 1250 char input[100], base[100], param[100];
b0f5e3fc 1251 char *filtmp;
1252
e8189707 1253 fResponse->Filenames(input,base,param);
b0f5e3fc 1254 fFileName=base;
1255//
1256 filtmp = gSystem->ExpandPathName(fFileName.Data());
1257 FILE *bline = fopen(filtmp,"r");
b0f5e3fc 1258 na = 0;
1259
1260 if(bline) {
50d05d7b 1261 while(fscanf(bline,"%d %f %f",&pos, &bl, &n) != EOF) {
1262 if (pos != na+1) {
1263 Error("ReadBaseline","Anode number not in increasing order!",
1264 filtmp);
1265 exit(1);
1266 } // end if pos != na+1
1267 fBaseline[na]=bl;
1268 fNoise[na]=n;
1269 na++;
1270 } // end while
b0f5e3fc 1271 } else {
50d05d7b 1272 Error("ReadBaseline"," THE BASELINE FILE %s DOES NOT EXIST !",filtmp);
1273 exit(1);
b0f5e3fc 1274 } // end if(bline)
8a33ae9e 1275
b0f5e3fc 1276 fclose(bline);
1277 delete [] filtmp;
b0f5e3fc 1278}
8a33ae9e 1279//______________________________________________________________________
1280Int_t AliITSsimulationSDD::Convert10to8(Int_t signal) const {
1281 // To the 10 to 8 bit lossive compression.
1282 // code from Davide C. and Albert W.
1283
1284 if (signal < 128) return signal;
1285 if (signal < 256) return (128+((signal-128)>>1));
1286 if (signal < 512) return (192+((signal-256)>>3));
1287 if (signal < 1024) return (224+((signal-512)>>4));
1288 return 0;
b0f5e3fc 1289}
8a33ae9e 1290//______________________________________________________________________
1291Int_t AliITSsimulationSDD::Convert8to10(Int_t signal) const {
1292 // Undo the lossive 10 to 8 bit compression.
1293 // code from Davide C. and Albert W.
1294 if (signal < 0 || signal > 255) {
50d05d7b 1295 Warning("Convert8to10","out of range signal=%d",signal);
1296 return 0;
8a33ae9e 1297 } // end if signal <0 || signal >255
1298
1299 if (signal < 128) return signal;
1300 if (signal < 192) {
50d05d7b 1301 if (TMath::Odd(signal)) return (128+((signal-128)<<1));
1302 else return (128+((signal-128)<<1)+1);
8a33ae9e 1303 } // end if signal < 192
1304 if (signal < 224) {
50d05d7b 1305 if (TMath::Odd(signal)) return (256+((signal-192)<<3)+3);
1306 else return (256+((signal-192)<<3)+4);
8a33ae9e 1307 } // end if signal < 224
1308 if (TMath::Odd(signal)) return (512+((signal-224)<<4)+7);
48058160 1309 return (512+((signal-224)<<4)+8);
8a33ae9e 1310}
50d05d7b 1311
1312/*
8a33ae9e 1313//______________________________________________________________________
b0f5e3fc 1314AliITSMap* AliITSsimulationSDD::HitMap(Int_t i){
8a33ae9e 1315 //Return the correct map.
1316
b0f5e3fc 1317 return ((i==0)? fHitMap1 : fHitMap2);
50d05d7b 1318}*/
1319
8a33ae9e 1320//______________________________________________________________________
e8189707 1321void AliITSsimulationSDD::ZeroSuppression(const char *option) {
8a33ae9e 1322 // perform the zero suppresion
1323
1324 if (strstr(option,"2D")) {
50d05d7b 1325 //Init2D(); // activate if param change module by module
1326 Compress2D();
8a33ae9e 1327 } else if (strstr(option,"1D")) {
50d05d7b 1328 //Init1D(); // activate if param change module by module
1329 Compress1D();
8a33ae9e 1330 } else StoreAllDigits();
b0f5e3fc 1331}
8a33ae9e 1332//______________________________________________________________________
b0f5e3fc 1333void AliITSsimulationSDD::Init2D(){
8a33ae9e 1334 // read in and prepare arrays: fD, fT1, fT2
1335 // savemu[nanodes], savesigma[nanodes]
1336 // read baseline and noise from file - either a .root file and in this
1337 // case data should be organised in a tree with one entry for each
1338 // module => reading should be done accordingly
1339 // or a classic file and do smth. like this ( code from Davide C. and
1340 // Albert W.) :
1341 // Read 2D zero-suppression parameters for SDD
b0f5e3fc 1342
b9d0a01d 1343 if (!strstr(fParam.Data(),"file")) return;
b0f5e3fc 1344
1345 Int_t na,pos,tempTh;
1346 Float_t mu,sigma;
8a33ae9e 1347 Float_t *savemu = new Float_t [fNofMaps];
e8189707 1348 Float_t *savesigma = new Float_t [fNofMaps];
1349 char input[100],basel[100],par[100];
b0f5e3fc 1350 char *filtmp;
b0f5e3fc 1351 Int_t minval = fResponse->MinVal();
1352
e8189707 1353 fResponse->Filenames(input,basel,par);
8a33ae9e 1354 fFileName = par;
b0f5e3fc 1355//
1356 filtmp = gSystem->ExpandPathName(fFileName.Data());
1357 FILE *param = fopen(filtmp,"r");
1358 na = 0;
1359
1360 if(param) {
50d05d7b 1361 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1362 if (pos != na+1) {
1363 Error("Init2D","Anode number not in increasing order!",filtmp);
1364 exit(1);
1365 } // end if pos != na+1
1366 savemu[na] = mu;
8a33ae9e 1367 savesigma[na] = sigma;
b0f5e3fc 1368 if ((2.*sigma) < mu) {
1369 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1370 mu = 2.0 * sigma;
50d05d7b 1371 } else fD[na] = 0;
b0f5e3fc 1372 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1373 if (tempTh < 0) tempTh=0;
1374 fT1[na] = tempTh;
1375 tempTh = (Int_t)floor(mu+3.0*sigma+0.5) - minval;
1376 if (tempTh < 0) tempTh=0;
1377 fT2[na] = tempTh;
1378 na++;
50d05d7b 1379 } // end while
b0f5e3fc 1380 } else {
50d05d7b 1381 Error("Init2D","THE FILE %s DOES NOT EXIST !",filtmp);
1382 exit(1);
b0f5e3fc 1383 } // end if(param)
8a33ae9e 1384
b0f5e3fc 1385 fclose(param);
1386 delete [] filtmp;
5d18fa90 1387 delete [] savemu;
e8189707 1388 delete [] savesigma;
8a33ae9e 1389}
1390//______________________________________________________________________
b0f5e3fc 1391void AliITSsimulationSDD::Compress2D(){
8a33ae9e 1392 // simple ITS cluster finder -- online zero-suppression conditions
b0f5e3fc 1393
b0f5e3fc 1394 Int_t db,tl,th;
8a33ae9e 1395 Int_t minval = fResponse->MinVal();
1396 Bool_t write = fResponse->OutputOption();
1397 Bool_t do10to8 = fResponse->Do10to8();
b0f5e3fc 1398 Int_t nz, nl, nh, low, i, j;
1399
e8189707 1400 for (i=0; i<fNofMaps; i++) {
b0f5e3fc 1401 CompressionParam(i,db,tl,th);
8a33ae9e 1402 nz = 0;
1403 nl = 0;
1404 nh = 0;
1405 low = 0;
50d05d7b 1406 for (j=0; j<fMaxNofSamples; j++) {
1407 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1408 signal -= db; // if baseline eq. is done here
b0f5e3fc 1409 if (signal <= 0) {nz++; continue;}
50d05d7b 1410 if ((signal - tl) < minval) low++;
b0f5e3fc 1411 if ((signal - th) >= minval) {
50d05d7b 1412 nh++;
1413 Bool_t cond=kTRUE;
1414 FindCluster(i,j,signal,minval,cond);
1415 if(cond && j &&
1416 ((TMath::Abs(fHitMap2->GetSignal(i,j-1))-th)>=minval)){
1417 if(do10to8) signal = Convert10to8(signal);
1418 AddDigit(i,j,signal);
1419 } // end if cond&&j&&()
1420 } else if ((signal - tl) >= minval) nl++;
1421 } // end for j loop time samples
1422 if (write) TreeB()->Fill(nz,nl,nh,low,i+1);
8a33ae9e 1423 } //end for i loop anodes
b0f5e3fc 1424
8a33ae9e 1425 char hname[30];
1426 if (write) {
50d05d7b 1427 sprintf(hname,"TNtuple%d_%d",fModule,fEvent);
1428 TreeB()->Write(hname);
1429 // reset tree
b0f5e3fc 1430 TreeB()->Reset();
8a33ae9e 1431 } // end if write
1432}
1433//______________________________________________________________________
b0f5e3fc 1434void AliITSsimulationSDD::FindCluster(Int_t i,Int_t j,Int_t signal,
ece86d9a 1435 Int_t minval,Bool_t &cond){
8a33ae9e 1436 // Find clusters according to the online 2D zero-suppression algorithm
1437 Bool_t do10to8 = fResponse->Do10to8();
1438 Bool_t high = kFALSE;
b0f5e3fc 1439
1440 fHitMap2->FlagHit(i,j);
1441//
1442// check the online zero-suppression conditions
1443//
8a33ae9e 1444 const Int_t kMaxNeighbours = 4;
b0f5e3fc 1445 Int_t nn;
1446 Int_t dbx,tlx,thx;
8a33ae9e 1447 Int_t xList[kMaxNeighbours], yList[kMaxNeighbours];
e8189707 1448 fSegmentation->Neighbours(i,j,&nn,xList,yList);
ece86d9a 1449 Int_t in,ix,iy,qns;
e8189707 1450 for (in=0; in<nn; in++) {
50d05d7b 1451 ix=xList[in];
e8189707 1452 iy=yList[in];
b0f5e3fc 1453 if (fHitMap2->TestHit(ix,iy)==kUnused) {
50d05d7b 1454 CompressionParam(ix,dbx,tlx,thx);
1455 Int_t qn = (Int_t)(fHitMap2->GetSignal(ix,iy));
1456 qn -= dbx; // if baseline eq. is done here
1457 if ((qn-tlx) < minval) {
1458 fHitMap2->FlagHit(ix,iy);
1459 continue;
1460 } else {
1461 if ((qn - thx) >= minval) high=kTRUE;
1462 if (cond) {
1463 if(do10to8) signal = Convert10to8(signal);
1464 AddDigit(i,j,signal);
1465 } // end if cond
1466 if(do10to8) qns = Convert10to8(qn);
1467 else qns=qn;
1468 if (!high) AddDigit(ix,iy,qns);
1469 cond=kFALSE;
1470 if(!high) fHitMap2->FlagHit(ix,iy);
1471 } // end if qn-tlx < minval
1472 } // end if TestHit
8a33ae9e 1473 } // end for in loop over neighbours
b0f5e3fc 1474}
8a33ae9e 1475//______________________________________________________________________
b0f5e3fc 1476void AliITSsimulationSDD::Init1D(){
8a33ae9e 1477 // this is just a copy-paste of input taken from 2D algo
1478 // Torino people should give input
1479 // Read 1D zero-suppression parameters for SDD
b0f5e3fc 1480
b9d0a01d 1481 if (!strstr(fParam.Data(),"file")) return;
b0f5e3fc 1482
1483 Int_t na,pos,tempTh;
1484 Float_t mu,sigma;
8a33ae9e 1485 Float_t *savemu = new Float_t [fNofMaps];
e8189707 1486 Float_t *savesigma = new Float_t [fNofMaps];
1487 char input[100],basel[100],par[100];
b0f5e3fc 1488 char *filtmp;
b0f5e3fc 1489 Int_t minval = fResponse->MinVal();
8a33ae9e 1490
e8189707 1491 fResponse->Filenames(input,basel,par);
1492 fFileName=par;
b0f5e3fc 1493
1494// set first the disable and tol param
1495 SetCompressParam();
1496//
1497 filtmp = gSystem->ExpandPathName(fFileName.Data());
1498 FILE *param = fopen(filtmp,"r");
1499 na = 0;
1500
1501 if (param) {
50d05d7b 1502 fscanf(param,"%d %d %d %d ", &fT2[0], &fT2[1], &fTol[0], &fTol[1]);
1503 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1504 if (pos != na+1) {
1505 Error("Init1D","Anode number not in increasing order!",filtmp);
1506 exit(1);
1507 } // end if pos != na+1
1508 savemu[na]=mu;
1509 savesigma[na]=sigma;
1510 if ((2.*sigma) < mu) {
1511 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1512 mu = 2.0 * sigma;
1513 } else fD[na] = 0;
1514 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1515 if (tempTh < 0) tempTh=0;
1516 fT1[na] = tempTh;
1517 na++;
1518 } // end while
b0f5e3fc 1519 } else {
50d05d7b 1520 Error("Init1D","THE FILE %s DOES NOT EXIST !",filtmp);
1521 exit(1);
b0f5e3fc 1522 } // end if(param)
8a33ae9e 1523
b0f5e3fc 1524 fclose(param);
1525 delete [] filtmp;
749bd21a 1526 delete [] savemu;
e8189707 1527 delete [] savesigma;
8a33ae9e 1528}
1529//______________________________________________________________________
b0f5e3fc 1530void AliITSsimulationSDD::Compress1D(){
1531 // 1D zero-suppression algorithm (from Gianluca A.)
8a33ae9e 1532 Int_t dis,tol,thres,decr,diff;
b0f5e3fc 1533 UChar_t *str=fStream->Stream();
8a33ae9e 1534 Int_t counter=0;
1535 Bool_t do10to8=fResponse->Do10to8();
1536 Int_t last=0;
1537 Int_t k,i,j;
ece86d9a 1538
ece86d9a 1539 for (k=0; k<2; k++) {
50d05d7b 1540 tol = Tolerance(k);
1541 dis = Disable(k);
1542 for (i=0; i<fNofMaps/2; i++) {
1543 Bool_t firstSignal=kTRUE;
1544 Int_t idx=i+k*fNofMaps/2;
43217ad9 1545 if( !fAnodeFire[idx] ) continue;
50d05d7b 1546 CompressionParam(idx,decr,thres);
1547 for (j=0; j<fMaxNofSamples; j++) {
1548 Int_t signal=(Int_t)(fHitMap2->GetSignal(idx,j));
1549 signal -= decr; // if baseline eq.
1550 if(do10to8) signal = Convert10to8(signal);
1551 if (signal <= thres) {
1552 signal=0;
1553 diff=128;
1554 last=0;
1555 // write diff in the buffer for HuffT
1556 str[counter]=(UChar_t)diff;
1557 counter++;
1558 continue;
1559 } // end if signal <= thres
1560 diff=signal-last;
1561 if (diff > 127) diff=127;
1562 if (diff < -128) diff=-128;
1563 if (signal < dis) {
1564 // tol has changed to 8 possible cases ? - one can write
1565 // this if(TMath::Abs(diff)<tol) ... else ...
1566 if(TMath::Abs(diff)<tol) diff=0;
1567 // or keep it as it was before
1568 /*
b0f5e3fc 1569 if (tol==1 && (diff >= -2 && diff <= 1)) diff=0;
1570 if (tol==2 && (diff >= -4 && diff <= 3)) diff=0;
1571 if (tol==3 && (diff >= -16 && diff <= 15)) diff=0;
50d05d7b 1572 */
ece86d9a 1573 AddDigit(idx,j,last+diff);
50d05d7b 1574 } else {
1575 AddDigit(idx,j,signal);
1576 } // end if singal < dis
1577 diff += 128;
1578 // write diff in the buffer used to compute Huffman tables
1579 if (firstSignal) str[counter]=(UChar_t)signal;
1580 else str[counter]=(UChar_t)diff;
1581 counter++;
1582 last=signal;
1583 firstSignal=kFALSE;
1584 } // end for j loop time samples
1585 } // end for i loop anodes one half of detector
8a33ae9e 1586 } // end for k
b0f5e3fc 1587
1588 // check
1589 fStream->CheckCount(counter);
1590
1591 // open file and write out the stream of diff's
b0f5e3fc 1592 static Bool_t open=kTRUE;
e8189707 1593 static TFile *outFile;
b0f5e3fc 1594 Bool_t write = fResponse->OutputOption();
9ad8b5dd 1595 TDirectory *savedir = gDirectory;
b0f5e3fc 1596
1597 if (write ) {
50d05d7b 1598 if(open) {
1599 SetFileName("stream.root");
1600 cout<<"filename "<<fFileName<<endl;
1601 outFile=new TFile(fFileName,"recreate");
1602 cout<<"I have opened "<<fFileName<<" file "<<endl;
1603 } // end if open
1604 open = kFALSE;
1605 outFile->cd();
b0f5e3fc 1606 fStream->Write();
50d05d7b 1607 } // endif write
b0f5e3fc 1608
8a33ae9e 1609 fStream->ClearStream();
b0f5e3fc 1610
8a33ae9e 1611 // back to galice.root file
9ad8b5dd 1612 if(savedir) savedir->cd();
8a33ae9e 1613}
1614//______________________________________________________________________
b0f5e3fc 1615void AliITSsimulationSDD::StoreAllDigits(){
8a33ae9e 1616 // if non-zero-suppressed data
1617 Bool_t do10to8 = fResponse->Do10to8();
ece86d9a 1618 Int_t i, j, digits[3];
8a33ae9e 1619
e8189707 1620 for (i=0; i<fNofMaps; i++) {
1621 for (j=0; j<fMaxNofSamples; j++) {
50d05d7b 1622 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1623 if(do10to8) signal = Convert10to8(signal);
1624 if(do10to8) signal = Convert8to10(signal);
1625 digits[0] = i;
1626 digits[1] = j;
1627 digits[2] = signal;
1628 fITS->AddRealDigit(1,digits);
1629 } // end for j
8a33ae9e 1630 } // end for i
b0f5e3fc 1631}
8a33ae9e 1632//______________________________________________________________________
ece86d9a 1633void AliITSsimulationSDD::CreateHistograms(Int_t scale){
8a33ae9e 1634 // Creates histograms of maps for debugging
1635 Int_t i;
ece86d9a 1636
1637 fHis=new TObjArray(fNofMaps);
e8189707 1638 for (i=0;i<fNofMaps;i++) {
50d05d7b 1639 TString sddName("sdd_");
1640 Char_t candNum[4];
1641 sprintf(candNum,"%d",i+1);
1642 sddName.Append(candNum);
1643 fHis->AddAt(new TH1F(sddName.Data(),"SDD maps",scale*fMaxNofSamples,
1644 0.,(Float_t) scale*fMaxNofSamples), i);
8a33ae9e 1645 } // end for i
b0f5e3fc 1646}
8a33ae9e 1647//______________________________________________________________________
ece86d9a 1648void AliITSsimulationSDD::FillHistograms(){
8a33ae9e 1649 // fill 1D histograms from map
1650
1651 if (!fHis) return;
1652
1653 for( Int_t i=0; i<fNofMaps; i++) {
50d05d7b 1654 TH1F *hist =(TH1F *)fHis->UncheckedAt(i);
1655 Int_t nsamples = hist->GetNbinsX();
1656 for( Int_t j=0; j<nsamples; j++) {
1657 Double_t signal=fHitMap2->GetSignal(i,j);
1658 hist->Fill((Float_t)j,signal);
1659 } // end for j
8a33ae9e 1660 } // end for i
ece86d9a 1661}
8a33ae9e 1662//______________________________________________________________________
b0f5e3fc 1663void AliITSsimulationSDD::ResetHistograms(){
b0f5e3fc 1664 // Reset histograms for this detector
b0f5e3fc 1665 Int_t i;
8a33ae9e 1666
e8189707 1667 for (i=0;i<fNofMaps;i++ ) {
50d05d7b 1668 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
8a33ae9e 1669 } // end for i
b0f5e3fc 1670}
8a33ae9e 1671//______________________________________________________________________
b0f5e3fc 1672TH1F *AliITSsimulationSDD::GetAnode(Int_t wing, Int_t anode) {
8a33ae9e 1673 // Fills a histogram from a give anode.
1674
1675 if (!fHis) return 0;
1676
1677 if(wing <=0 || wing > 2) {
50d05d7b 1678 Warning("GetAnode","Wrong wing number: %d",wing);
1679 return NULL;
8a33ae9e 1680 } // end if wing <=0 || wing >2
1681 if(anode <=0 || anode > fNofMaps/2) {
50d05d7b 1682 Warning("GetAnode","Wrong anode number: %d",anode);
1683 return NULL;
8a33ae9e 1684 } // end if ampde <=0 || andoe > fNofMaps/2
1685
1686 Int_t index = (wing-1)*fNofMaps/2 + anode-1;
8a33ae9e 1687 return (TH1F*)(fHis->At(index));
b0f5e3fc 1688}
8a33ae9e 1689//______________________________________________________________________
b0f5e3fc 1690void AliITSsimulationSDD::WriteToFile(TFile *hfile) {
8a33ae9e 1691 // Writes the histograms to a file
b0f5e3fc 1692
8a33ae9e 1693 if (!fHis) return;
1694
1695 hfile->cd();
1696 Int_t i;
8a33ae9e 1697 for(i=0; i<fNofMaps; i++) fHis->At(i)->Write(); //fAdcs[i]->Write();
1698 return;
b0f5e3fc 1699}
8a33ae9e 1700//______________________________________________________________________
ece86d9a 1701Float_t AliITSsimulationSDD::GetNoise() {
8a33ae9e 1702 // Returns the noise value
1703 //Bool_t do10to8=fResponse->Do10to8();
1704 //noise will always be in the liniar part of the signal
1705 Int_t decr;
1706 Int_t threshold = fT1[0];
1707 char opt1[20], opt2[20];
1708
1709 fResponse->ParamOptions(opt1,opt2);
1710 fParam=opt2;
1711 char *same = strstr(opt1,"same");
1712 Float_t noise,baseline;
1713 if (same) {
50d05d7b 1714 fResponse->GetNoiseParam(noise,baseline);
8a33ae9e 1715 } else {
50d05d7b 1716 static Bool_t readfile=kTRUE;
1717 //read baseline and noise from file
1718 if (readfile) ReadBaseline();
1719 readfile=kFALSE;
8a33ae9e 1720 } // end if same
1721
1722 TCanvas *c2 = (TCanvas*)gROOT->GetListOfCanvases()->FindObject("c2");
1723 if(c2) delete c2->GetPrimitive("noisehist");
1724 if(c2) delete c2->GetPrimitive("anode");
1725 else c2=new TCanvas("c2");
1726 c2->cd();
1727 c2->SetFillColor(0);
1728
1729 TH1F *noisehist = new TH1F("noisehist","noise",100,0.,(float)2*threshold);
1730 TH1F *anode = new TH1F("anode","Anode Projection",fMaxNofSamples,0.,
50d05d7b 1731 (float)fMaxNofSamples);
8a33ae9e 1732 Int_t i,k;
1733 for (i=0;i<fNofMaps;i++) {
50d05d7b 1734 CompressionParam(i,decr,threshold);
1735 if (!same) GetAnodeBaseline(i,baseline,noise);
1736 anode->Reset();
1737 for (k=0;k<fMaxNofSamples;k++) {
1738 Float_t signal=(Float_t)fHitMap2->GetSignal(i,k);
1739 //if (signal <= (float)threshold) noisehist->Fill(signal-baseline);
1740 if (signal <= (float)threshold) noisehist->Fill(signal);
1741 anode->Fill((float)k,signal);
1742 } // end for k
1743 anode->Draw();
1744 c2->Update();
8a33ae9e 1745 } // end for i
1746 TF1 *gnoise = new TF1("gnoise","gaus",0.,threshold);
1747 noisehist->Fit("gnoise","RQ");
1748 noisehist->Draw();
ece86d9a 1749 c2->Update();
8a33ae9e 1750 Float_t mnoise = gnoise->GetParameter(1);
1751 cout << "mnoise : " << mnoise << endl;
1752 Float_t rnoise = gnoise->GetParameter(2);
1753 cout << "rnoise : " << rnoise << endl;
1754 delete noisehist;
1755 return rnoise;
50d05d7b 1756}
1757//______________________________________________________________________
1758void AliITSsimulationSDD::WriteSDigits(){
c7a4dac0 1759 // Fills the Summable digits Tree
c7a4dac0 1760 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
1761
48058160 1762 for( Int_t i=0; i<fNofMaps; i++ ) {
43217ad9 1763 if( !fAnodeFire[i] ) continue;
48058160 1764 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
1765 Double_t sig = fHitMap2->GetSignal( i, j );
1766 if( sig > 0.2 ) {
1767 Int_t jdx = j*fScaleSize;
1768 Int_t index = fpList->GetHitIndex( i, j );
1769 AliITSpListItem pItemTmp2( fModule, index, 0. );
1770 // put the fScaleSize analog digits in only one
1771 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
1772 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
1773 if( pItemTmp == 0 ) continue;
1774 pItemTmp2.Add( pItemTmp );
1775 }
1776 pItemTmp2.AddSignalAfterElect( fModule, index, sig );
1777 pItemTmp2.AddNoise( fModule, index, fHitNoiMap2->GetSignal( i, j ) );
1778 aliITS->AddSumDigit( pItemTmp2 );
1779 } // end if (sig > 0.2)
1780 }
1781 }
c7a4dac0 1782 return;
b0f5e3fc 1783}
8a33ae9e 1784//______________________________________________________________________
44a312c3 1785void AliITSsimulationSDD::Print() {
8a33ae9e 1786 // Print SDD simulation Parameters
1787
1788 cout << "**************************************************" << endl;
1789 cout << " Silicon Drift Detector Simulation Parameters " << endl;
1790 cout << "**************************************************" << endl;
1791 cout << "Flag for Perpendicular tracks: " << (Int_t) fFlag << endl;
1792 cout << "Flag for noise checking: " << (Int_t) fCheckNoise << endl;
1793 cout << "Flag to switch off electronics: " << (Int_t) fDoFFT << endl;
1794 cout << "Number pf Anodes used: " << fNofMaps << endl;
1795 cout << "Number of Time Samples: " << fMaxNofSamples << endl;
1796 cout << "Scale size factor: " << fScaleSize << endl;
1797 cout << "**************************************************" << endl;
44a312c3 1798}