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