Bug fix in function SetBinSize.
[u/mrichter/AliRoot.git] / ITS / AliITSsimulationSDD.cxx
CommitLineData
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 **************************************************************************/
15
16
17#include <iostream.h>
18#include <stdlib.h>
19#include <stdio.h>
1ca7869b 20#include <string.h>
21
94de3818 22#include <TSystem.h>
23#include <TROOT.h>
608f25d8 24#include <TStopwatch.h>
ece86d9a 25#include <TCanvas.h>
26#include <TF1.h>
27#include <TRandom.h>
1ca7869b 28#include <TH1.h>
29#include <TFile.h>
30#include <TVector.h>
31#include <TArrayI.h>
32#include <TArrayF.h>
ece86d9a 33
b0f5e3fc 34#include "AliRun.h"
e8189707 35#include "AliITS.h"
ece86d9a 36#include "AliITShit.h"
37#include "AliITSdigit.h"
38#include "AliITSmodule.h"
e8189707 39#include "AliITSMapA1.h"
40#include "AliITSMapA2.h"
e8189707 41#include "AliITSetfSDD.h"
42#include "AliITSRawData.h"
b0f5e3fc 43#include "AliITSHuffman.h"
ece86d9a 44#include "AliITSsegmentation.h"
45#include "AliITSresponse.h"
1ca7869b 46#include "AliITSsimulationSDD.h"
b0f5e3fc 47
b0f5e3fc 48ClassImp(AliITSsimulationSDD)
49////////////////////////////////////////////////////////////////////////
50// Version: 0
51// Written by Piergiorgio Cerello
52// November 23 1999
53//
54// AliITSsimulationSDD is the simulation of SDDs.
55 //
56//Begin_Html
57/*
58<img src="picts/ITS/AliITShit_Class_Diagram.gif">
59</pre>
60<br clear=left>
61<font size=+2 color=red>
62<p>This show the relasionships between the ITS hit class and the rest of Aliroot.
63</font>
64<pre>
65*/
66//End_Html
67//_____________________________________________________________________________
68
69Int_t power(Int_t b, Int_t e) {
e8189707 70 // compute b to the e power, where both b and e are Int_ts.
b0f5e3fc 71 Int_t power = 1,i;
72 for(i=0; i<e; i++) power *= b;
73 return power;
74}
75
76//_____________________________________________
77
78void FastFourierTransform(AliITSetfSDD *alisddetf,Double_t *real,
79 Double_t *imag,Int_t direction) {
80 // Do a Fast Fourier Transform
ece86d9a 81 //printf("FFT: direction %d\n",direction);
b0f5e3fc 82
83 Int_t samples = alisddetf->GetSamples();
84 Int_t l = (Int_t) ((log((Float_t) samples)/log(2.))+0.5);
85 Int_t m1 = samples;
86 Int_t m = samples/2;
87 Int_t m2 = samples/m1;
88 Int_t i,j,k;
89 for(i=1; i<=l; i++) {
90 for(j=0; j<samples; j += m1) {
91 Int_t p = 0;
92 for(k=j; k<= j+m-1; k++) {
93 Double_t wsr = alisddetf->GetWeightReal(p);
94 Double_t wsi = alisddetf->GetWeightImag(p);
95 if(direction == -1) wsi = -wsi;
96 Double_t xr = *(real+k+m);
97 Double_t xi = *(imag+k+m);
98 *(real+k+m) = wsr*(*(real+k)-xr) - wsi*(*(imag+k)-xi);
99 *(imag+k+m) = wsr*(*(imag+k)-xi) + wsi*(*(real+k)-xr);
100 *(real+k) += xr;
101 *(imag+k) += xi;
102 p += m2;
103 }
104 }
105 m1 = m;
106 m /= 2;
107 m2 += m2;
108 }
109
110 for(j=0; j<samples; j++) {
111 Int_t j1 = j;
112 Int_t p = 0;
113 Int_t i1;
114 for(i1=1; i1<=l; i1++) {
115 Int_t j2 = j1;
116 j1 /= 2;
117 p = p + p + j2 - j1 - j1;
118 }
119 if(p >= j) {
120 Double_t xr = *(real+j);
121 Double_t xi = *(imag+j);
122 *(real+j) = *(real+p);
123 *(imag+j) = *(imag+p);
124 *(real+p) = xr;
125 *(imag+p) = xi;
126 }
127 }
128 if(direction == -1) {
129 for(i=0; i<samples; i++) {
130 *(real+i) /= samples;
131 *(imag+i) /= samples;
132 }
133 }
134 return;
135}
136//_____________________________________________________________________________
137
138AliITSsimulationSDD::AliITSsimulationSDD(){
139 // Default constructor
140
141 fResponse = 0;
142 fSegmentation = 0;
143 fHis = 0;
ece86d9a 144 fHitMap1 = 0;
145 fHitMap2 = 0;
146 fElectronics = 0;
147 fStream = 0;
b0f5e3fc 148 fD.Set(0);
149 fT1.Set(0);
150 fT2.Set(0);
151 fTol.Set(0);
ece86d9a 152 fNoise.Set(0);
153 fBaseline.Set(0);
e8189707 154 SetScaleFourier();
155 SetPerpendTracksFlag();
ece86d9a 156 SetDoFFT();
157 SetCheckNoise();
5d18fa90 158 fInZR = 0;
159 fInZI = 0;
160 fOutZR = 0;
161 fOutZI = 0;
ece86d9a 162 fNofMaps = 0;
163 fMaxNofSamples = 0;
164 fITS = 0;
165 fTreeB=0;
b0f5e3fc 166}
167//_____________________________________________________________________________
e8189707 168AliITSsimulationSDD::AliITSsimulationSDD(AliITSsimulationSDD &source)
169{
b0f5e3fc 170 // Copy constructor to satify Coding roules only.
171 if(this==&source) return;
172 printf("Not allowed to make a copy of AliITSsimulationSDD "
173 "Using default creater instead\n");
174 AliITSsimulationSDD();
175}
176//_____________________________________________________________________________
e8189707 177AliITSsimulationSDD& AliITSsimulationSDD::operator=(AliITSsimulationSDD &source)
178{
179 // Assignment operator to satify Coding roules only.
b0f5e3fc 180 if(this==&source) return *this;
181 printf("Not allowed to make a = with AliITSsimulationSDD "
182 "Using default creater instead\n");
183 return *this ;
184}
185//_____________________________________________________________________________
186
e8189707 187AliITSsimulationSDD::AliITSsimulationSDD(AliITSsegmentation *seg,AliITSresponse *resp)
188{
189 // Standard Constructor
ece86d9a 190
191 fHis=0;
192 fTreeB=0;
b0f5e3fc 193 fResponse = resp;
194 fSegmentation = seg;
e8189707 195 SetScaleFourier();
196 SetPerpendTracksFlag();
ece86d9a 197 SetDoFFT();
198 SetCheckNoise();
b0f5e3fc 199
e8189707 200 fHitMap2 = new AliITSMapA2(fSegmentation,fScaleSize,1);
b0f5e3fc 201 fHitMap1 = new AliITSMapA1(fSegmentation);
202
203 //
204 fNofMaps=fSegmentation->Npz();
205 fMaxNofSamples=fSegmentation->Npx();
206
207 Float_t sddLength = fSegmentation->Dx();
208 Float_t sddWidth = fSegmentation->Dz();
209
210 Int_t dummy=0;
211 Float_t anodePitch = fSegmentation->Dpz(dummy);
212 Double_t timeStep = (Double_t)fSegmentation->Dpx(dummy);
213 Float_t driftSpeed=fResponse->DriftSpeed();
214
215 if(anodePitch*(fNofMaps/2) > sddWidth) {
216 Warning("AliITSsimulationSDD",
ece86d9a 217 "Too many anodes %d or too big pitch %f \n",fNofMaps/2,anodePitch);
b0f5e3fc 218 }
219
220 if(timeStep*fMaxNofSamples < sddLength/driftSpeed) {
221 Error("AliITSsimulationSDD",
ece86d9a 222 "Time Interval > Allowed Time Interval: exit\n");
b0f5e3fc 223 return;
224 }
225
44a312c3 226 fElectronics = new AliITSetfSDD(timeStep/fScaleSize,fResponse->Electronics());
b0f5e3fc 227
e8189707 228 char opt1[20], opt2[20];
b0f5e3fc 229 fResponse->ParamOptions(opt1,opt2);
230 fParam=opt2;
231 char *same = strstr(opt1,"same");
232 if (same) {
233 fNoise.Set(0);
234 fBaseline.Set(0);
235 } else {
236 fNoise.Set(fNofMaps);
237 fBaseline.Set(fNofMaps);
238 }
239
240 //
e8189707 241 const char *kopt=fResponse->ZeroSuppOption();
b0f5e3fc 242 if (strstr(fParam,"file") ) {
243 fD.Set(fNofMaps);
244 fT1.Set(fNofMaps);
e8189707 245 if (strstr(kopt,"2D")) {
b0f5e3fc 246 fT2.Set(fNofMaps);
247 fTol.Set(0);
248 Init2D(); // desactivate if param change module by module
e8189707 249 } else if(strstr(kopt,"1D")) {
b0f5e3fc 250 fT2.Set(2);
251 fTol.Set(2);
252 Init1D(); // desactivate if param change module by module
253 }
254 } else {
255 fD.Set(2);
256 fTol.Set(2);
257 fT1.Set(2);
258 fT2.Set(2);
259 SetCompressParam();
260 }
261
262
263 Bool_t write=fResponse->OutputOption();
e8189707 264 if(write && strstr(kopt,"2D")) MakeTreeB();
b0f5e3fc 265
266 // call here if baseline does not change by module
267 // ReadBaseline();
268
269 fITS = (AliITS*)gAlice->GetModule("ITS");
270 Int_t size=fNofMaps*fMaxNofSamples;
271 fStream = new AliITSInStream(size);
272
e8189707 273 fInZR = new Double_t [fScaleSize*fMaxNofSamples];
274 fInZI = new Double_t [fScaleSize*fMaxNofSamples];
275 fOutZR = new Double_t [fScaleSize*fMaxNofSamples];
276 fOutZI = new Double_t [fScaleSize*fMaxNofSamples];
5d18fa90 277
b0f5e3fc 278}
279
280
281//_____________________________________________________________________________
282
283AliITSsimulationSDD::~AliITSsimulationSDD() {
284 // destructor
285
286 delete fHitMap1;
287 delete fHitMap2;
288 delete fStream;
ece86d9a 289 delete fElectronics;
b0f5e3fc 290
291 fD.Set(0);
292 fT1.Set(0);
293 fT2.Set(0);
294 fTol.Set(0);
295 fNoise.Set(0);
296 fBaseline.Set(0);
ece86d9a 297 fITS = 0;
b0f5e3fc 298
299 if (fHis) {
300 fHis->Delete();
301 delete fHis;
ece86d9a 302 }
303 if(fTreeB) delete fTreeB;
e8189707 304 if(fInZR) delete [] fInZR;
305 if(fInZI) delete [] fInZI;
306 if(fOutZR) delete [] fOutZR;
307 if(fOutZI) delete [] fOutZI;
b0f5e3fc 308}
309//_____________________________________________________________________________
310
311void AliITSsimulationSDD::DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
312 // create maps to build the lists of tracks
313 // for each digit
bcb36ceb 314 //cout << "Module: " << md << endl;
b0f5e3fc 315 fModule=md;
316 fEvent=ev;
317
318 TObjArray *fHits = mod->GetHits();
319 Int_t nhits = fHits->GetEntriesFast();
ece86d9a 320 if (!nhits && fCheckNoise) {
321 ChargeToSignal();
322 GetNoise();
323 fHitMap2->ClearMap();
324 return;
325 } else if (!nhits) return;
326
327 //printf("simSDD: module nhits %d %d\n",md,nhits);
b0f5e3fc 328
329
330 TObjArray *list=new TObjArray;
331 static TClonesArray *padr=0;
332 if(!padr) padr=new TClonesArray("TVector",1000);
e8189707 333 Int_t arg[6] = {0,0,0,0,0,0};
b0f5e3fc 334 fHitMap1->SetArray(list);
335
44a312c3 336 // cout << "set Parameters" << endl;
b0f5e3fc 337
e8189707 338 Int_t nofAnodes=fNofMaps/2;
b0f5e3fc 339
340 Float_t sddLength = fSegmentation->Dx();
341 Float_t sddWidth = fSegmentation->Dz();
44a312c3 342
b0f5e3fc 343 Int_t dummy=0;
344 Float_t anodePitch = fSegmentation->Dpz(dummy);
345 Float_t timeStep = fSegmentation->Dpx(dummy);
346
347 Float_t driftSpeed=fResponse->DriftSpeed();
348
44a312c3 349 Float_t maxadc = fResponse->MaxAdc();
350 Float_t topValue = fResponse->DynamicRange();
351 Float_t CHloss = fResponse->ChargeLoss();
352 Float_t norm = maxadc/topValue;
353
b0f5e3fc 354 // Piergiorgio's part (apart for few variables which I made float
355 // when i thought that can be done
356
357 // Fill detector maps with GEANT hits
358 // loop over hits in the module
359
44a312c3 360 // TStopwatch timer;
361 // timer.Start();
362
e8189707 363 const Float_t kconv=1.0e+6; // GeV->KeV
b0f5e3fc 364 Int_t ii;
ece86d9a 365 Int_t idhit=-1;
0aba3986 366 Float_t xL[3];
367 Float_t xL1[3];
b0f5e3fc 368 for(ii=0; ii<nhits; ii++) {
44a312c3 369 // cout << "hit: " << ii+1 << " of " << nhits << endl;
a14dba92 370 AliITShit *hit = (AliITShit*) fHits->At(ii);
0aba3986 371 AliITShit *hit1 = 0;
44a312c3 372
373 // Take into account all hits when several GEANT steps are carried out
374 // inside the silicon
375 // Get and use the status of hit(track):
376 // 66 - for entering hit,
377 // 65 - for inside hit,
378 // 68 - for exiting hit,
379 // 33 - for stopping hit.
380
fc6624d8 381 //Int_t status = hit->GetTrackStatus();
0aba3986 382 Int_t status1 = 0;
383 Int_t hitDetector = hit->GetDetector();
384 Float_t depEnergy = 0.;
385 if(hit->StatusEntering()) { // to be coupled to following hit
386 idhit=ii;
387 hit->GetPositionL(xL[0],xL[1],xL[2]);
388 if(ii<nhits-1) ii++;
389 hit1 = (AliITShit*) fHits->At(ii);
390 hit1->GetPositionL(xL1[0],xL1[1],xL1[2]);
391 status1 = hit1->GetTrackStatus();
392 depEnergy = kconv*hit1->GetIonization();
393 } else {
394 depEnergy = kconv*hit->GetIonization(); // Deposited energy in keV
395 hit->GetPositionL(xL1[0],xL1[1],xL1[2]);
396 }
397 // cout << "status: " << status << ", status1: " << status1 << ", dE: " << depEnergy << endl;
398 if(fFlag && status1 == 33) continue;
a14dba92 399
44a312c3 400 Int_t nOfSplits = 1;
44a312c3 401
402 // hit->Print();
403
0aba3986 404// Int_t status1 = -1;
405// Int_t ctr = 0;
44a312c3 406 //Take now the entering and inside hits only
0aba3986 407// if(status == 66) {
408// do {
409// if(ii<nhits-1) ii++;
410// hit1 = (AliITShit*) fHits->At(ii);
411// hit1->GetPositionL(xL1[0],xL1[1],xL1[2]);
412// status1 = hit1->GetTrackStatus();
413// depEnergy += kconv*hit1->GetIonization();
414// if(fFlag && status1 == 65) ctr++;
415// } while(status1 != 68 && status1 != 33);
416// }
417
44a312c3 418
a14dba92 419 // scale path to simulate a perpendicular track
a14dba92 420 // continue if the particle did not lose energy
421 // passing through detector
422 if (!depEnergy) {
423 printf("This particle has passed without losing energy!\n");
424 continue;
425 }
44a312c3 426 Float_t pathInSDD = TMath::Sqrt((xL[0]-xL1[0])*(xL[0]-xL1[0])+(xL[1]-xL1[1])*(xL[1]-xL1[1])+(xL[2]-xL1[2])*(xL[2]-xL1[2]));
427
428 if (fFlag && pathInSDD) { depEnergy *= (0.03/pathInSDD); }
429 Float_t Drft = (xL1[0]+xL[0])*0.5;
430 Float_t drPath = 10000.*Drft;
431 if(drPath < 0) drPath = -drPath;
432 drPath = sddLength-drPath;
433 if(drPath < 0) {
434 cout << "Warning: negative drift path " << drPath << endl;
435 continue;
a14dba92 436 }
44a312c3 437
438 // Drift Time
439 Float_t drTime = drPath/driftSpeed;
440 // Signal 2d Shape
441 Float_t dfCoeff, s1;
442 fResponse->DiffCoeff(dfCoeff,s1);
443
444 // Squared Sigma along the anodes
445 Double_t sig2A = 2.*dfCoeff*drTime+s1*s1;
446 Double_t sigA = TMath::Sqrt(sig2A);
447 if(pathInSDD) {
448 nOfSplits = (Int_t) (1 + 10000.*pathInSDD/sigA);
449 //cout << "nOfSplits: " << nOfSplits << ", sigA: " << sigA << ", path: " << pathInSDD << endl;
450 }
451 if(fFlag) nOfSplits = 1;
452 depEnergy /= nOfSplits;
453
a14dba92 454 for(Int_t kk=0;kk<nOfSplits;kk++) {
455 Float_t avDrft =
456 xL[0]+(xL1[0]-xL[0])*((kk+0.5)/((Float_t) nOfSplits));
457 Float_t avAnode =
458 xL[2]+(xL1[2]-xL[2])*((kk+0.5)/((Float_t) nOfSplits));
459 Float_t driftPath = 10000.*avDrft;
ece86d9a 460
b0f5e3fc 461 Int_t iWing = 2;
462 if(driftPath < 0) {
a14dba92 463 iWing = 1;
464 driftPath = -driftPath;
b0f5e3fc 465 }
466 driftPath = sddLength-driftPath;
467 Int_t detector = 2*(hitDetector-1) + iWing;
468 if(driftPath < 0) {
a14dba92 469 cout << "Warning: negative drift path " << driftPath << endl;
470 continue;
b0f5e3fc 471 }
472
473 // Drift Time
474 Float_t driftTime = driftPath/driftSpeed;
e8189707 475 Int_t timeSample = (Int_t) (fScaleSize*driftTime/timeStep + 1);
476 if(timeSample > fScaleSize*fMaxNofSamples) {
a14dba92 477 cout << "Warning: Wrong Time Sample: " << timeSample << endl;
478 continue;
b0f5e3fc 479 }
480
481 // Anode
e8189707 482 Float_t xAnode = 10000.*(avAnode)/anodePitch + nofAnodes/2; // +1?
44a312c3 483 if(xAnode*anodePitch > sddWidth || xAnode*anodePitch < 0.)
a14dba92 484 { cout << "Warning: Z = " << xAnode*anodePitch << endl; }
b0f5e3fc 485 Int_t iAnode = (Int_t) (1.+xAnode); // xAnode?
44a312c3 486 if(iAnode < 1 || iAnode > nofAnodes) {
b0f5e3fc 487 cout << "Warning: Wrong iAnode: " << iAnode << endl;
488 continue;
489 }
490
e8189707 491 // work with the idtrack=entry number in the TreeH for the moment
ece86d9a 492 //Int_t idhit,idtrack;
493 //mod->GetHitTrackAndHitIndex(ii,idtrack,idhit);
e8189707 494 //Int_t idtrack=mod->GetHitTrackIndex(ii);
b0f5e3fc 495 // or store straight away the particle position in the array
ece86d9a 496 // of particles and take idhit=ii only when part is entering (this
497 // requires FillModules() in the macro for analysis) :
a14dba92 498 Int_t itrack = hit->GetTrack();
b0f5e3fc 499
500 // Signal 2d Shape
e8189707 501 Float_t diffCoeff, s0;
502 fResponse->DiffCoeff(diffCoeff,s0);
b0f5e3fc 503
b0f5e3fc 504 // Squared Sigma along the anodes
e8189707 505 Double_t sigma2A = 2.*diffCoeff*driftTime+s0*s0;
506 Double_t sigmaA = TMath::Sqrt(sigma2A);
507 Double_t sigmaT = sigmaA/driftSpeed;
b0f5e3fc 508 // Peak amplitude in nanoAmpere
509 Double_t eVpairs = 3.6;
e8189707 510 Double_t amplitude = fScaleSize*160.*depEnergy/(timeStep*eVpairs*2.*acos(-1.)*sigmaT*sigmaA);
44a312c3 511 amplitude *= timeStep/25.; // WARNING!!!!! Amplitude scaling to account for clock variations (reference value: 40 MHz)
512 Double_t chargeloss = 1.-CHloss*driftPath/1000;
513 amplitude *= chargeloss;
e8189707 514 Float_t nsigma=fResponse->NSigmaIntegration();
44a312c3 515 Int_t nlookups = fResponse->GausNLookUp();
516 Float_t width = 2.*nsigma/(nlookups-1);
b0f5e3fc 517 // Spread the charge
518 // Pixel index
519 Int_t ja = iAnode;
520 Int_t jt = timeSample;
44a312c3 521 Int_t ndiv = 2;
522 Float_t nmul = 3.;
523 if(driftTime > 1200.) {
524 ndiv = 4;
525 nmul = 1.5;
526 }
b0f5e3fc 527 // Sub-pixel index
e8189707 528 Int_t nsplit = 4; // hard-wired
b0f5e3fc 529 nsplit = (nsplit+1)/2*2;
530 // Sub-pixel size
e8189707 531 Double_t aStep = anodePitch/(nsplit*fScaleSize);
532 Double_t tStep = timeStep/(nsplit*fScaleSize);
b0f5e3fc 533 // Define SDD window corresponding to the hit
e8189707 534 Int_t anodeWindow = (Int_t) (fScaleSize*nsigma*sigmaA/anodePitch + 1);
535 Int_t timeWindow = (Int_t) (fScaleSize*nsigma*sigmaT/timeStep + 1);
44a312c3 536 Int_t jamin = (ja - anodeWindow/ndiv - 1)*fScaleSize*nsplit + 1;
537 Int_t jamax = (ja + anodeWindow/ndiv)*fScaleSize*nsplit;
b0f5e3fc 538 if(jamin <= 0) jamin = 1;
e8189707 539 if(jamax > fScaleSize*nofAnodes*nsplit) jamax = fScaleSize*nofAnodes*nsplit;
44a312c3 540 Int_t jtmin = (Int_t) (jt - timeWindow*nmul - 1)*nsplit + 1; //hard-wired
541 Int_t jtmax = (Int_t) (jt + timeWindow*nmul)*nsplit; //hard-wired
b0f5e3fc 542 if(jtmin <= 0) jtmin = 1;
e8189707 543 if(jtmax > fScaleSize*fMaxNofSamples*nsplit) jtmax = fScaleSize*fMaxNofSamples*nsplit;
544
b0f5e3fc 545 // Spread the charge in the anode-time window
546 Int_t ka;
44a312c3 547 //cout << "jamin: " << jamin << ", jamax: " << jamax << endl;
548 //cout << "jtmin: " << jtmin << ", jtmax: " << jtmax << endl;
b0f5e3fc 549 for(ka=jamin; ka <=jamax; ka++) {
e8189707 550 Int_t ia = (ka-1)/(fScaleSize*nsplit) + 1;
b0f5e3fc 551 if(ia <= 0) { cout << "Warning: ia < 1: " << endl; continue; }
e8189707 552 if(ia > nofAnodes) ia = nofAnodes;
553 Double_t aExpo = (aStep*(ka-0.5)-xAnode*anodePitch)/sigmaA;
44a312c3 554 Double_t anodeAmplitude = 0;
555 if(TMath::Abs(aExpo) > nsigma) {
556 anodeAmplitude = 0.;
557 //cout << "aExpo: " << aExpo << endl;
558 } else {
559 Int_t i = (Int_t) ((aExpo+nsigma)/width);
560 //cout << "eval ampl: " << i << ", " << amplitude << endl;
561 anodeAmplitude = amplitude*fResponse->GausLookUp(i);
562 //cout << "ampl: " << anodeAmplitude << endl;
563 }
ece86d9a 564 Int_t index = ((detector+1)%2)*nofAnodes+ia-1; // index starts from 0
b0f5e3fc 565 if(anodeAmplitude) {
44a312c3 566 //Double_t rlTime = log(tStep*anodeAmplitude);
b0f5e3fc 567 Int_t kt;
568 for(kt=jtmin; kt<=jtmax; kt++) {
e8189707 569 Int_t it = (kt-1)/nsplit+1; // it starts from 1
b0f5e3fc 570 if(it<=0) { cout << "Warning: it < 1: " << endl; continue; }
e8189707 571 if(it>fScaleSize*fMaxNofSamples) it = fScaleSize*fMaxNofSamples;
572 Double_t tExpo = (tStep*(kt-0.5)-driftTime)/sigmaT;
44a312c3 573 Double_t timeAmplitude = 0.;
574 if(TMath::Abs(tExpo) > nsigma) {
575 timeAmplitude = 0.;
576 //cout << "tExpo: " << tExpo << endl;
577 } else {
578 Int_t i = (Int_t) ((tExpo+nsigma)/width);
579 //cout << "eval ampl: " << i << ", " << anodeAmplitude << endl;
580 timeAmplitude = anodeAmplitude*fResponse->GausLookUp(i);
581 }
b0f5e3fc 582
b0f5e3fc 583 // build the list of digits for this module
584 arg[0]=index;
585 arg[1]=it;
e8189707 586 arg[2]=itrack;
587 arg[3]=idhit;
44a312c3 588 timeAmplitude *= norm;
589 timeAmplitude *= 10;
b0f5e3fc 590 ListOfFiredCells(arg,timeAmplitude,list,padr);
44a312c3 591 //cout << "ampl: " << timeAmplitude << endl;
592 } // loop over time in window
593 } // end if anodeAmplitude
594 } // loop over anodes in window
595 } // end loop over "sub-hits"
0aba3986 596 for(Int_t ki=0; ki<3; ki++) xL[ki] = xL1[ki];
44a312c3 597 } // end loop over hits
598
599 // timer.Stop(); timer.Print();
600
b0f5e3fc 601 // introduce the electronics effects and do zero-suppression if required
e8189707 602 Int_t nentries=list->GetEntriesFast();
b0f5e3fc 603 if (nentries) {
ece86d9a 604
44a312c3 605 // TStopwatch timer1;
b0f5e3fc 606 ChargeToSignal();
44a312c3 607 // timer1.Stop(); cout << "ele: "; timer1.Print();
b0f5e3fc 608
e8189707 609 const char *kopt=fResponse->ZeroSuppOption();
610 ZeroSuppression(kopt);
b0f5e3fc 611 }
612
613 // clean memory
614 list->Delete();
615 delete list;
616
617 padr->Delete();
618
619 fHitMap1->ClearMap();
620 fHitMap2->ClearMap();
621
622 //gObjectTable->Print();
623}
624
625
626//____________________________________________
627
628void AliITSsimulationSDD::ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,
629 TObjArray *list,TClonesArray *padr){
630 // Returns the list of "fired" cells.
631
632 Int_t index=arg[0];
e8189707 633 Int_t ik=arg[1];
b0f5e3fc 634 Int_t idtrack=arg[2];
e8189707 635 Int_t idhit=arg[3];
636 Int_t counter=arg[4];
637 Int_t countadr=arg[5];
b0f5e3fc 638
e8189707 639 Double_t charge=timeAmplitude;
640 charge += fHitMap2->GetSignal(index,ik-1);
641 fHitMap2->SetHit(index, ik-1, charge);
b0f5e3fc 642
e8189707 643 Int_t digits[3];
644 Int_t it=(Int_t)((ik-1)/fScaleSize);
645
b0f5e3fc 646 digits[0]=index;
e8189707 647 digits[1]=it;
b0f5e3fc 648 digits[2]=(Int_t)timeAmplitude;
649 Float_t phys;
650 if (idtrack >= 0) phys=(Float_t)timeAmplitude;
651 else phys=0;
652
e8189707 653 Double_t cellcharge=0.;
b0f5e3fc 654 AliITSTransientDigit* pdigit;
655 // build the list of fired cells and update the info
e8189707 656 if (!fHitMap1->TestHit(index, it)) {
b0f5e3fc 657
e8189707 658 new((*padr)[countadr++]) TVector(3);
b0f5e3fc 659 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
660 trinfo(0)=(Float_t)idtrack;
e8189707 661 trinfo(1)=(Float_t)idhit;
662 trinfo(2)=(Float_t)timeAmplitude;
b0f5e3fc 663
664 list->AddAtAndExpand(
665 new AliITSTransientDigit(phys,digits),counter);
666
e8189707 667 fHitMap1->SetHit(index, it, counter);
b0f5e3fc 668 counter++;
b0f5e3fc 669 pdigit=(AliITSTransientDigit*)list->
670 At(list->GetLast());
671 // list of tracks
672 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
673 trlist->Add(&trinfo);
674
675 } else {
676 pdigit=
e8189707 677 (AliITSTransientDigit*) fHitMap1->GetHit(index, it);
678 for(Int_t kk=0;kk<fScaleSize;kk++) {
679 cellcharge += fHitMap2->GetSignal(index,fScaleSize*it+kk);
680 }
b0f5e3fc 681 // update charge
e8189707 682 (*pdigit).fSignal=(Int_t)cellcharge;
b0f5e3fc 683 (*pdigit).fPhysics+=phys;
684 // update list of tracks
685 TObjArray* trlist=(TObjArray*)pdigit->TrackList();
686 Int_t lastentry=trlist->GetLast();
687 TVector *ptrkp=(TVector*)trlist->At(lastentry);
688 TVector &trinfo=*ptrkp;
689 Int_t lasttrack=Int_t(trinfo(0));
ece86d9a 690 //Int_t lasthit=Int_t(trinfo(1));
e8189707 691 Float_t lastcharge=(trinfo(2));
b0f5e3fc 692
693 if (lasttrack==idtrack ) {
694 lastcharge+=(Float_t)timeAmplitude;
695 trlist->RemoveAt(lastentry);
696 trinfo(0)=lasttrack;
ece86d9a 697 //trinfo(1)=lasthit; // or idhit
698 trinfo(1)=idhit;
e8189707 699 trinfo(2)=lastcharge;
b0f5e3fc 700 trlist->AddAt(&trinfo,lastentry);
701 } else {
702
e8189707 703 new((*padr)[countadr++]) TVector(3);
b0f5e3fc 704 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
705 trinfo(0)=(Float_t)idtrack;
e8189707 706 trinfo(1)=(Float_t)idhit;
707 trinfo(2)=(Float_t)timeAmplitude;
b0f5e3fc 708
709 trlist->Add(&trinfo);
710 }
711
712#ifdef print
713 // check the track list - debugging
e8189707 714 Int_t trk[20], htrk[20];
715 Float_t chtrk[20];
b0f5e3fc 716 Int_t nptracks=trlist->GetEntriesFast();
717 if (nptracks > 2) {
718 Int_t tr;
e8189707 719 for (tr=0;tr<nptracks;tr++) {
b0f5e3fc 720 TVector *pptrkp=(TVector*)trlist->At(tr);
721 TVector &pptrk=*pptrkp;
722 trk[tr]=Int_t(pptrk(0));
e8189707 723 htrk[tr]=Int_t(pptrk(1));
724 chtrk[tr]=(pptrk(2));
b0f5e3fc 725 printf("nptracks %d \n",nptracks);
726 // set printings
727 }
728 } // end if nptracks
729#endif
730 } // end if pdigit
731
e8189707 732 arg[4]=counter;
733 arg[5]=countadr;
b0f5e3fc 734
735
736}
737
738
739//____________________________________________
740
741void AliITSsimulationSDD::AddDigit(Int_t i, Int_t j, Int_t signal){
742 // Adds a Digit.
743 // tag with -1 signals coming from background tracks
744 // tag with -2 signals coming from pure electronic noise
745
e8189707 746 Int_t digits[3], tracks[3], hits[3];
b0f5e3fc 747 Float_t phys, charges[3];
748
e8189707 749 Int_t trk[20], htrk[20];
b0f5e3fc 750 Float_t chtrk[20];
751
ece86d9a 752 Bool_t do10to8=fResponse->Do10to8();
753
754 if(do10to8) signal=Convert8to10(signal);
b0f5e3fc 755 AliITSTransientDigit *obj = (AliITSTransientDigit*)fHitMap1->GetHit(i,j);
756 digits[0]=i;
757 digits[1]=j;
758 digits[2]=signal;
b0f5e3fc 759 if (!obj) {
760 phys=0;
761 Int_t k;
e8189707 762 for (k=0;k<3;k++) {
b0f5e3fc 763 tracks[k]=-2;
764 charges[k]=0;
ece86d9a 765 hits[k]=-1;
b0f5e3fc 766 }
e8189707 767 fITS->AddSimDigit(1,phys,digits,tracks,hits,charges);
b0f5e3fc 768 } else {
769 phys=obj->fPhysics;
b0f5e3fc 770 TObjArray* trlist=(TObjArray*)obj->TrackList();
771 Int_t nptracks=trlist->GetEntriesFast();
772
773 if (nptracks > 20) {
774 cout<<"Attention - nptracks > 20 "<<nptracks<<endl;
775 nptracks=20;
776 }
777 Int_t tr;
e8189707 778 for (tr=0;tr<nptracks;tr++) {
b0f5e3fc 779 TVector &pp =*((TVector*)trlist->At(tr));
780 trk[tr]=Int_t(pp(0));
e8189707 781 htrk[tr]=Int_t(pp(1));
782 chtrk[tr]=(pp(2));
b0f5e3fc 783 }
784 if (nptracks > 1) {
ece86d9a 785 //printf("nptracks > 2 -- %d\n",nptracks);
e8189707 786 SortTracks(trk,chtrk,htrk,nptracks);
b0f5e3fc 787 }
788 Int_t i;
789 if (nptracks < 3 ) {
e8189707 790 for (i=0; i<nptracks; i++) {
b0f5e3fc 791 tracks[i]=trk[i];
792 charges[i]=chtrk[i];
e8189707 793 hits[i]=htrk[i];
b0f5e3fc 794 }
e8189707 795 for (i=nptracks; i<3; i++) {
ece86d9a 796 tracks[i]=-3;
797 hits[i]=-1;
b0f5e3fc 798 charges[i]=0;
799 }
800 } else {
e8189707 801 for (i=0; i<3; i++) {
b0f5e3fc 802 tracks[i]=trk[i];
803 charges[i]=chtrk[i];
e8189707 804 hits[i]=htrk[i];
b0f5e3fc 805 }
806 }
807
e8189707 808 fITS->AddSimDigit(1,phys,digits,tracks,hits,charges);
b0f5e3fc 809
810 }
811
812}
813
814//____________________________________________
815
e8189707 816void AliITSsimulationSDD::SortTracks(Int_t *tracks,Float_t *charges,Int_t *hits,Int_t ntr){
b0f5e3fc 817 //
818 // Sort the list of tracks contributing to a given digit
819 // Only the 3 most significant tracks are acctually sorted
820 //
821
822 //
823 // Loop over signals, only 3 times
824 //
825
826
827 Float_t qmax;
828 Int_t jmax;
829 Int_t idx[3] = {-3,-3,-3};
830 Float_t jch[3] = {-3,-3,-3};
831 Int_t jtr[3] = {-3,-3,-3};
e8189707 832 Int_t jhit[3] = {-3,-3,-3};
b0f5e3fc 833 Int_t i,j,imax;
834
835 if (ntr<3) imax=ntr;
836 else imax=3;
837 for(i=0;i<imax;i++){
838 qmax=0;
839 jmax=0;
840
841 for(j=0;j<ntr;j++){
842
843 if((i == 1 && j == idx[i-1] )
844 ||(i == 2 && (j == idx[i-1] || j == idx[i-2]))) continue;
845
846 if(charges[j] > qmax) {
847 qmax = charges[j];
848 jmax=j;
849 }
850 }
851
852 if(qmax > 0) {
853 idx[i]=jmax;
854 jch[i]=charges[jmax];
855 jtr[i]=tracks[jmax];
e8189707 856 jhit[i]=hits[jmax];
b0f5e3fc 857 }
858
859 }
860
861 for(i=0;i<3;i++){
862 if (jtr[i] == -3) {
863 charges[i]=0;
e8189707 864 tracks[i]=-3;
865 hits[i]=-1;
b0f5e3fc 866 } else {
867 charges[i]=jch[i];
868 tracks[i]=jtr[i];
ece86d9a 869 hits[i]=jhit[i];
b0f5e3fc 870 }
871 }
872
873}
874//____________________________________________
875void AliITSsimulationSDD::ChargeToSignal() {
876 // add baseline, noise, electronics and ADC saturation effects
877
e8189707 878 char opt1[20], opt2[20];
b0f5e3fc 879 fResponse->ParamOptions(opt1,opt2);
880 char *read = strstr(opt1,"file");
881
882 Float_t baseline, noise;
883
884 if (read) {
885 static Bool_t readfile=kTRUE;
886 //read baseline and noise from file
887 if (readfile) ReadBaseline();
888 readfile=kFALSE;
889 } else fResponse->GetNoiseParam(noise,baseline);
890
891 Float_t contrib=0;
b0f5e3fc 892
ece86d9a 893 TRandom random;
e8189707 894 Int_t i,k,kk;
ece86d9a 895
44a312c3 896 Float_t maxadc = fResponse->MaxAdc();
ece86d9a 897 if(!fDoFFT) {
898 for (i=0;i<fNofMaps;i++) {
899 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
900 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
901 fInZR[k] = fHitMap2->GetSignal(i,k);
44a312c3 902 contrib = (baseline + noise*random.Gaus());
ece86d9a 903 fInZR[k] += contrib;
e8189707 904 }
ece86d9a 905 for(k=0; k<fMaxNofSamples; k++) {
44a312c3 906 Double_t newcont = 0.;
907 Double_t maxcont = 0.;
ece86d9a 908 for(kk=0;kk<fScaleSize;kk++) {
44a312c3 909
ece86d9a 910 newcont = fInZR[fScaleSize*k+kk];
911 if(newcont > maxcont) maxcont = newcont;
44a312c3 912
913 //newcont += (fInZR[fScaleSize*k+kk]/fScaleSize);
ece86d9a 914 }
915 newcont = maxcont;
44a312c3 916 if (newcont >= maxadc) newcont = maxadc -1;
917 if(newcont >= baseline) cout << "newcont: " << newcont << endl;
ece86d9a 918 // back to analog: ?
44a312c3 919 fHitMap2->SetHit(i,k,newcont);
ece86d9a 920 }
921 } // loop over anodes
922 return;
923 } // end if DoFFT
924
925 for (i=0;i<fNofMaps;i++) {
926 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
927 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
928 fInZR[k] = fHitMap2->GetSignal(i,k);
44a312c3 929 contrib = (baseline + noise*random.Gaus());
ece86d9a 930 fInZR[k] += contrib;
931 fInZI[k] = 0.;
932 }
e8189707 933 FastFourierTransform(fElectronics,&fInZR[0],&fInZI[0],1);
ece86d9a 934 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
935 Double_t rw = fElectronics->GetTraFunReal(k);
e8189707 936 Double_t iw = fElectronics->GetTraFunImag(k);
ece86d9a 937 fOutZR[k] = fInZR[k]*rw - fInZI[k]*iw;
938 fOutZI[k] = fInZR[k]*iw + fInZI[k]*rw;
e8189707 939 }
ece86d9a 940 FastFourierTransform(fElectronics,&fOutZR[0],&fOutZI[0],-1);
941 for(k=0; k<fMaxNofSamples; k++) {
44a312c3 942 Double_t newcont1 = 0.;
943 Double_t maxcont1 = 0.;
ece86d9a 944 for(kk=0;kk<fScaleSize;kk++) {
44a312c3 945
946 newcont1 = fOutZR[fScaleSize*k+kk];
947 if(newcont1 > maxcont1) maxcont1 = newcont1;
948
949 //newcont1 += (fInZR[fScaleSize*k+kk]/fScaleSize);
ece86d9a 950 }
44a312c3 951 newcont1 = maxcont1;
952 //cout << "newcont1: " << newcont1 << endl;
953 if (newcont1 >= maxadc) newcont1 = maxadc -1;
954 fHitMap2->SetHit(i,k,newcont1);
ece86d9a 955 }
b0f5e3fc 956 } // loop over anodes
ece86d9a 957 return;
958
b0f5e3fc 959}
960
961//____________________________________________
962void AliITSsimulationSDD::GetAnodeBaseline(Int_t i,Float_t &baseline,
963 Float_t &noise){
964 // Returns the Baseline for a particular anode.
965 baseline=fBaseline[i];
966 noise=fNoise[i];
967
968}
969
970//____________________________________________
971void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl,
972 Int_t &th){
973 // Returns the compression alogirthm parameters
974 Int_t size = fD.GetSize();
975 if (size > 2 ) {
976 db=fD[i]; tl=fT1[i]; th=fT2[i];
977 } else {
978 if (size <= 2 && i>=fNofMaps/2) {
979 db=fD[1]; tl=fT1[1]; th=fT2[1];
980 } else {
981 db=fD[0]; tl=fT1[0]; th=fT2[0];
982 }
983 }
984}
985//____________________________________________
986void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl){
987 // returns the compression alogirthm parameters
988 Int_t size = fD.GetSize();
989 if (size > 2 ) {
990 db=fD[i]; tl=fT1[i];
991 } else {
992 if (size <= 2 && i>=fNofMaps/2) {
993 db=fD[1]; tl=fT1[1];
994 } else {
995 db=fD[0]; tl=fT1[0];
996 }
997 }
998
999}
1000//____________________________________________
1001void AliITSsimulationSDD::SetCompressParam(){
1002 // Sets the compression alogirthm parameters
1003 Int_t cp[8],i;
1004
1005 fResponse->GiveCompressParam(cp);
e8189707 1006 for (i=0; i<2; i++) {
b0f5e3fc 1007 fD[i] =cp[i];
1008 fT1[i] =cp[i+2];
1009 fT2[i] =cp[i+4];
1010 fTol[i]=cp[i+6];
b0f5e3fc 1011 printf("\n i, fD, fT1, fT2, fTol %d %d %d %d %d\n",
1012 i,fD[i],fT1[i],fT2[i],fTol[i]);
b0f5e3fc 1013 }
1014}
1015
1016//____________________________________________
1017void AliITSsimulationSDD::ReadBaseline(){
1018 // read baseline and noise from file - either a .root file and in this
1019 // case data should be organised in a tree with one entry for each
1020 // module => reading should be done accordingly
1021 // or a classic file and do smth. like this:
1022 //
1023 // Read baselines and noise for SDD
1024 //
1025
1026
1027 Int_t na,pos;
1028 Float_t bl,n;
e8189707 1029 char input[100], base[100], param[100];
b0f5e3fc 1030 char *filtmp;
1031
e8189707 1032 fResponse->Filenames(input,base,param);
b0f5e3fc 1033 fFileName=base;
1034//
1035 filtmp = gSystem->ExpandPathName(fFileName.Data());
1036 FILE *bline = fopen(filtmp,"r");
1037 printf("filtmp %s\n",filtmp);
1038 na = 0;
1039
1040 if(bline) {
1041 while(fscanf(bline,"%d %f %f",&pos, &bl, &n) != EOF) {
b0f5e3fc 1042 if (pos != na+1) {
1043 Error("ReadBaseline","Anode number not in increasing order!",
1044 filtmp);
1045 exit(1);
1046 }
1047 fBaseline[na]=bl;
1048 fNoise[na]=n;
1049 na++;
1050 }
1051 } else {
1052 Error("ReadBaseline"," THE BASELINE FILE %s DOES NOT EXIST !",
1053 filtmp);
1054 exit(1);
1055 } // end if(bline)
1056
1057 fclose(bline);
1058 delete [] filtmp;
b0f5e3fc 1059}
1060
1061//____________________________________________
1062Int_t AliITSsimulationSDD::Convert10to8(Int_t signal) {
1063 // To the 10 to 8 bit lossive compression.
1064 // code from Davide C. and Albert W.
1065
1066 if (signal < 128) return signal;
1067 if (signal < 256) return (128+((signal-128)>>1));
1068 if (signal < 512) return (192+((signal-256)>>3));
1069 if (signal < 1024) return (224+((signal-512)>>4));
1070 return 0;
1071
1072}
1073
1074//____________________________________________
1075Int_t AliITSsimulationSDD::Convert8to10(Int_t signal) {
1076 // Undo the lossive 10 to 8 bit compression.
1077 // code from Davide C. and Albert W.
1078 if (signal < 0 || signal > 255) {
1079 printf("<Convert8to10> out of range %d \n",signal);
1080 return 0;
1081 }
1082
1083 if (signal < 128) return signal;
1084 if (signal < 192) {
1085 if (TMath::Odd(signal)) return (128+((signal-128)<<1));
1086 else return (128+((signal-128)<<1)+1);
1087 }
1088 if (signal < 224) {
1089 if (TMath::Odd(signal)) return (256+((signal-192)<<3)+3);
1090 else return (256+((signal-192)<<3)+4);
1091 }
1092 if (TMath::Odd(signal)) return (512+((signal-224)<<4)+7);
1093 else return (512+((signal-224)<<4)+7);
1094 return 0;
1095
1096}
1097
1098//____________________________________________
1099AliITSMap* AliITSsimulationSDD::HitMap(Int_t i){
1100 //Return the correct map.
1101 return ((i==0)? fHitMap1 : fHitMap2);
1102}
1103
1104
1105//____________________________________________
e8189707 1106void AliITSsimulationSDD::ZeroSuppression(const char *option) {
b0f5e3fc 1107 // perform the zero suppresion
1108 if (strstr(option,"2D")) {
1109 //Init2D(); // activate if param change module by module
1110 Compress2D();
1111 } else if (strstr(option,"1D")) {
1112 //Init1D(); // activate if param change module by module
1113 Compress1D();
1114 } else StoreAllDigits();
1115
1116}
1117
1118//____________________________________________
1119void AliITSsimulationSDD::Init2D(){
1120 // read in and prepare arrays: fD, fT1, fT2
1121 // savemu[nanodes], savesigma[nanodes]
1122 // read baseline and noise from file - either a .root file and in this
1123 // case data should be organised in a tree with one entry for each
1124 // module => reading should be done accordingly
1125 // or a classic file and do smth. like this ( code from Davide C. and
1126 // Albert W.) :
1127 //
1128 // Read 2D zero-suppression parameters for SDD
1129 //
1130
1131 if (!strstr(fParam,"file")) return;
1132
1133 Int_t na,pos,tempTh;
1134 Float_t mu,sigma;
5d18fa90 1135 Float_t *savemu = new Float_t [fNofMaps];
e8189707 1136 Float_t *savesigma = new Float_t [fNofMaps];
1137 char input[100],basel[100],par[100];
b0f5e3fc 1138 char *filtmp;
1139
1140
1141 Int_t minval = fResponse->MinVal();
1142
e8189707 1143 fResponse->Filenames(input,basel,par);
1144 fFileName=par;
b0f5e3fc 1145
1146//
1147 filtmp = gSystem->ExpandPathName(fFileName.Data());
1148 FILE *param = fopen(filtmp,"r");
1149 na = 0;
1150
1151 if(param) {
1152 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1153 if (pos != na+1) {
1154 Error("Init2D ","Anode number not in increasing order!",
1155 filtmp);
1156 exit(1);
1157 }
1158 savemu[na]=mu;
1159 savesigma[na]=sigma;
1160 if ((2.*sigma) < mu) {
1161 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1162 mu = 2.0 * sigma;
1163 } else fD[na] = 0;
1164 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1165 if (tempTh < 0) tempTh=0;
1166 fT1[na] = tempTh;
1167 tempTh = (Int_t)floor(mu+3.0*sigma+0.5) - minval;
1168 if (tempTh < 0) tempTh=0;
1169 fT2[na] = tempTh;
1170 na++;
1171 } // end while
1172
1173 } else {
1174 Error("Init2D "," THE FILE %s DOES NOT EXIST !",
1175 filtmp);
1176 exit(1);
1177 } // end if(param)
1178
1179 fclose(param);
1180 delete [] filtmp;
5d18fa90 1181 delete [] savemu;
e8189707 1182 delete [] savesigma;
b0f5e3fc 1183}
e8189707 1184
b0f5e3fc 1185//____________________________________________
1186void AliITSsimulationSDD::Compress2D(){
1187 //
1188 // simple ITS cluster finder -- online zero-suppression conditions
1189 //
1190 //
1191
b0f5e3fc 1192 Int_t db,tl,th;
1193 Int_t minval = fResponse->MinVal();
1194 Bool_t write=fResponse->OutputOption();
ece86d9a 1195 Bool_t do10to8=fResponse->Do10to8();
b0f5e3fc 1196
1197 Int_t nz, nl, nh, low, i, j;
1198
e8189707 1199 for (i=0; i<fNofMaps; i++) {
b0f5e3fc 1200 CompressionParam(i,db,tl,th);
1201 nz=0;
1202 nl=0;
1203 nh=0;
1204 low=0;
e8189707 1205 for (j=0; j<fMaxNofSamples; j++) {
b0f5e3fc 1206 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1207 signal -= db; // if baseline eq. is done here
1208 if (signal <= 0) {nz++; continue;}
1209 if ((signal - tl) < minval) low++;
1210 if ((signal - th) >= minval) {
1211 nh++;
1212 Bool_t cond=kTRUE;
b0f5e3fc 1213 FindCluster(i,j,signal,minval,cond);
44a312c3 1214 if (cond && j && ((TMath::Abs(fHitMap2->GetSignal(i,j-1))-th)>=minval)) {
ece86d9a 1215 if(do10to8) signal = Convert10to8(signal);
1216 AddDigit(i,j,signal);
1217 }
b0f5e3fc 1218 } else if ((signal - tl) >= minval) nl++;
1219 } // loop time samples
1220 if (write) TreeB()->Fill(nz,nl,nh,low,i+1);
b0f5e3fc 1221 } // loop anodes
1222
1223 char hname[30];
1224 if (write) {
1225 sprintf(hname,"TNtuple%d_%d",fModule,fEvent);
1226 TreeB()->Write(hname);
1227 // reset tree
1228 TreeB()->Reset();
1229 }
1230
1231}
1232
1233//_____________________________________________________________________________
1234void AliITSsimulationSDD::FindCluster(Int_t i,Int_t j,Int_t signal,
ece86d9a 1235 Int_t minval,Bool_t &cond){
b0f5e3fc 1236//
1237// Find clusters according to the online 2D zero-suppression algorithm
1238//
1239
ece86d9a 1240 Bool_t do10to8=fResponse->Do10to8();
1241
b0f5e3fc 1242 Bool_t high=kFALSE;
1243
1244 fHitMap2->FlagHit(i,j);
1245//
1246// check the online zero-suppression conditions
1247//
e8189707 1248 const Int_t maxNeighbours = 4;
1249
b0f5e3fc 1250 Int_t nn;
1251 Int_t dbx,tlx,thx;
e8189707 1252 Int_t xList[maxNeighbours], yList[maxNeighbours];
1253 fSegmentation->Neighbours(i,j,&nn,xList,yList);
ece86d9a 1254 Int_t in,ix,iy,qns;
e8189707 1255 for (in=0; in<nn; in++) {
1256 ix=xList[in];
1257 iy=yList[in];
b0f5e3fc 1258 if (fHitMap2->TestHit(ix,iy)==kUnused) {
1259 CompressionParam(ix,dbx,tlx,thx);
1260 Int_t qn = (Int_t)(fHitMap2->GetSignal(ix,iy));
1261 qn -= dbx; // if baseline eq. is done here
1262 if ((qn-tlx) < minval) {
1263 fHitMap2->FlagHit(ix,iy);
1264 continue;
1265 } else {
1266 if ((qn - thx) >= minval) high=kTRUE;
1267 if (cond) {
ece86d9a 1268 if(do10to8) signal = Convert10to8(signal);
b0f5e3fc 1269 AddDigit(i,j,signal);
1270 }
ece86d9a 1271 if(do10to8) qns = Convert10to8(qn);
1272 else qns=qn;
b0f5e3fc 1273 if (!high) AddDigit(ix,iy,qns);
1274 cond=kFALSE;
1275 if(!high) fHitMap2->FlagHit(ix,iy);
1276 }
1277 } // TestHit
1278 } // loop over neighbours
1279
1280}
1281
1282//____________________________________________
1283void AliITSsimulationSDD::Init1D(){
1284 // this is just a copy-paste of input taken from 2D algo
1285 // Torino people should give input
1286 //
1287 // Read 1D zero-suppression parameters for SDD
1288 //
1289
1290 if (!strstr(fParam,"file")) return;
1291
1292 Int_t na,pos,tempTh;
1293 Float_t mu,sigma;
e8189707 1294 Float_t *savemu = new Float_t [fNofMaps];
1295 Float_t *savesigma = new Float_t [fNofMaps];
1296 char input[100],basel[100],par[100];
b0f5e3fc 1297 char *filtmp;
1298
1299
1300 Int_t minval = fResponse->MinVal();
e8189707 1301 fResponse->Filenames(input,basel,par);
1302 fFileName=par;
b0f5e3fc 1303
1304// set first the disable and tol param
1305 SetCompressParam();
1306//
1307 filtmp = gSystem->ExpandPathName(fFileName.Data());
1308 FILE *param = fopen(filtmp,"r");
1309 na = 0;
1310
1311 if (param) {
1312 fscanf(param,"%d %d %d %d ", &fT2[0], &fT2[1], &fTol[0], &fTol[1]);
1313 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1314 if (pos != na+1) {
1315 Error("Init1D ","Anode number not in increasing order!",
1316 filtmp);
1317 exit(1);
1318 }
1319 savemu[na]=mu;
1320 savesigma[na]=sigma;
1321 if ((2.*sigma) < mu) {
1322 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1323 mu = 2.0 * sigma;
1324 } else fD[na] = 0;
1325 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1326 if (tempTh < 0) tempTh=0;
1327 fT1[na] = tempTh;
1328 na++;
1329 } // end while
1330 } else {
1331 Error("Init1D "," THE FILE %s DOES NOT EXIST !",
1332 filtmp);
1333 exit(1);
1334 } // end if(param)
1335
1336 fclose(param);
1337 delete [] filtmp;
749bd21a 1338 delete [] savemu;
e8189707 1339 delete [] savesigma;
1340
1341
b0f5e3fc 1342
1343}
1344
1345//____________________________________________
1346void AliITSsimulationSDD::Compress1D(){
1347 // 1D zero-suppression algorithm (from Gianluca A.)
1348
1349 Int_t dis,tol,thres,decr,diff;
b0f5e3fc 1350
1351 UChar_t *str=fStream->Stream();
1352 Int_t counter=0;
1353
ece86d9a 1354 Bool_t do10to8=fResponse->Do10to8();
1355
e8189707 1356 Int_t last=0;
1357 Int_t k,i,j;
ece86d9a 1358 for (k=0; k<2; k++) {
1359 tol = Tolerance(k);
1360 dis = Disable(k);
e8189707 1361 for (i=0; i<fNofMaps/2; i++) {
b0f5e3fc 1362 Bool_t firstSignal=kTRUE;
ece86d9a 1363 Int_t idx=i+k*fNofMaps/2;
1364 CompressionParam(idx,decr,thres);
e8189707 1365 for (j=0; j<fMaxNofSamples; j++) {
ece86d9a 1366 Int_t signal=(Int_t)(fHitMap2->GetSignal(idx,j));
b0f5e3fc 1367 signal -= decr; // if baseline eq.
ece86d9a 1368 if(do10to8) signal = Convert10to8(signal);
1369 if (signal <= thres) {
b0f5e3fc 1370 signal=0;
1371 diff=128;
1372 last=0;
1373 // write diff in the buffer for HuffT
1374 str[counter]=(UChar_t)diff;
1375 counter++;
1376 continue;
1377 }
1378 diff=signal-last;
1379 if (diff > 127) diff=127;
1380 if (diff < -128) diff=-128;
1381
1382 if (signal < dis) {
ece86d9a 1383 // tol has changed to 8 possible cases ? - one can write
1384 // this if(TMath::Abs(diff)<tol) ... else ...
1385 if(TMath::Abs(diff)<tol) diff=0;
1386 // or keep it as it was before
1387 /*
b0f5e3fc 1388 if (tol==1 && (diff >= -2 && diff <= 1)) diff=0;
1389 if (tol==2 && (diff >= -4 && diff <= 3)) diff=0;
1390 if (tol==3 && (diff >= -16 && diff <= 15)) diff=0;
ece86d9a 1391 */
1392 AddDigit(idx,j,last+diff);
b0f5e3fc 1393 } else {
ece86d9a 1394 AddDigit(idx,j,signal);
b0f5e3fc 1395 }
1396
1397 diff += 128;
1398 // write diff in the buffer used to compute Huffman tables
1399 if (firstSignal) str[counter]=(UChar_t)signal;
1400 else str[counter]=(UChar_t)diff;
1401 counter++;
1402
1403 last=signal;
1404 firstSignal=kFALSE;
1405 } // loop time samples
1406 } // loop anodes one half of detector
1407 }
1408
1409 // check
1410 fStream->CheckCount(counter);
1411
1412 // open file and write out the stream of diff's
1413
1414 static Bool_t open=kTRUE;
e8189707 1415 static TFile *outFile;
b0f5e3fc 1416 Bool_t write = fResponse->OutputOption();
1417
1418 if (write ) {
1419 if(open) {
1420 SetFileName("stream.root");
1421 cout<<"filename "<<fFileName<<endl;
e8189707 1422 outFile=new TFile(fFileName,"recreate");
b0f5e3fc 1423 cout<<"I have opened "<<fFileName<<" file "<<endl;
1424 }
1425 open=kFALSE;
e8189707 1426 outFile->cd();
b0f5e3fc 1427 fStream->Write();
1428 } // endif write
1429
1430 fStream->ClearStream();
1431
1432 // back to galice.root file
1433
1434 TTree *fAli=gAlice->TreeK();
1435 TFile *file = 0;
1436
1437 if (fAli) file =fAli->GetCurrentFile();
1438 file->cd();
1439
1440
1441}
1442//____________________________________________
1443void AliITSsimulationSDD::StoreAllDigits(){
ece86d9a 1444 // if non-zero-suppressed data
b0f5e3fc 1445
ece86d9a 1446 Bool_t do10to8=fResponse->Do10to8();
b0f5e3fc 1447
ece86d9a 1448 Int_t i, j, digits[3];
e8189707 1449 for (i=0; i<fNofMaps; i++) {
1450 for (j=0; j<fMaxNofSamples; j++) {
b0f5e3fc 1451 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
ece86d9a 1452 if(do10to8) signal = Convert10to8(signal);
1453 if(do10to8) signal = Convert8to10(signal);
b0f5e3fc 1454 digits[0]=i;
1455 digits[1]=j;
1456 digits[2]=signal;
ece86d9a 1457 fITS->AddRealDigit(1,digits);
b0f5e3fc 1458 }
1459 }
1460}
1461//____________________________________________
1462
ece86d9a 1463void AliITSsimulationSDD::CreateHistograms(Int_t scale){
b0f5e3fc 1464 // Creates histograms of maps for debugging
1465
1466 Int_t i;
ece86d9a 1467
1468 fHis=new TObjArray(fNofMaps);
e8189707 1469 for (i=0;i<fNofMaps;i++) {
a14dba92 1470 TString sddName("sdd_");
b0f5e3fc 1471 Char_t candNum[4];
1472 sprintf(candNum,"%d",i+1);
ece86d9a 1473 sddName.Append(candNum);
1474 (*fHis)[i] = new TH1F(sddName.Data(),"SDD maps",
1475 scale*fMaxNofSamples,0.,(Float_t) scale*fMaxNofSamples);
b0f5e3fc 1476 }
1477
1478}
1479//____________________________________________
ece86d9a 1480void AliITSsimulationSDD::FillHistograms(){
1481 // fill 1D histograms from map
1482 if (!fHis) return;
1483
1484 for( Int_t i=0; i<fNofMaps; i++) {
1485 TH1F *hist =(TH1F *)fHis->UncheckedAt(i);
1486 Int_t nsamples = hist->GetNbinsX();
1487 for( Int_t j=0; j<nsamples; j++) {
1488 Double_t signal=fHitMap2->GetSignal(i,j);
1489 hist->Fill((Float_t)j,signal);
1490 }
1491 }
1492}
1493
1494//____________________________________________
b0f5e3fc 1495
1496void AliITSsimulationSDD::ResetHistograms(){
1497 //
1498 // Reset histograms for this detector
1499 //
1500 Int_t i;
e8189707 1501 for (i=0;i<fNofMaps;i++ ) {
b0f5e3fc 1502 if ((*fHis)[i]) ((TH1F*)(*fHis)[i])->Reset();
1503 }
1504
1505}
1506
1507
1508//____________________________________________
1509
1510TH1F *AliITSsimulationSDD::GetAnode(Int_t wing, Int_t anode) {
1511 // Fills a histogram from a give anode.
1512 if (!fHis) return 0;
1513
1514 if(wing <=0 || wing > 2) {
1515 cout << "Wrong wing number: " << wing << endl;
1516 return NULL;
1517 }
1518 if(anode <=0 || anode > fNofMaps/2) {
1519 cout << "Wrong anode number: " << anode << endl;
1520 return NULL;
1521 }
1522
1523 Int_t index = (wing-1)*fNofMaps/2 + anode-1;
1524 return (TH1F*)((*fHis)[index]);
1525}
1526
1527//____________________________________________
1528
1529void AliITSsimulationSDD::WriteToFile(TFile *hfile) {
1530 // Writes the histograms to a file
1531 if (!fHis) return;
1532
1533 hfile->cd();
1534 Int_t i;
1535 for(i=0; i<fNofMaps; i++) (*fHis)[i]->Write(); //fAdcs[i]->Write();
1536 return;
1537}
1538//____________________________________________
ece86d9a 1539Float_t AliITSsimulationSDD::GetNoise() {
b0f5e3fc 1540 // Returns the noise value
b0f5e3fc 1541
ece86d9a 1542 //Bool_t do10to8=fResponse->Do10to8();
1543 //noise will always be in the liniar part of the signal
1544
1545 Int_t decr;
1546 Int_t threshold=fT1[0];
1547
1548 char opt1[20], opt2[20];
1549 fResponse->ParamOptions(opt1,opt2);
1550 fParam=opt2;
1551 char *same = strstr(opt1,"same");
1552 Float_t noise,baseline;
1553 if (same) {
1554 fResponse->GetNoiseParam(noise,baseline);
1555 } else {
1556 static Bool_t readfile=kTRUE;
1557 //read baseline and noise from file
1558 if (readfile) ReadBaseline();
1559 readfile=kFALSE;
1560 }
1561
1562 TCanvas *c2 = (TCanvas*)gROOT->GetListOfCanvases()->FindObject("c2");
1563 if(c2) delete c2->GetPrimitive("noisehist");
1564 if(c2) delete c2->GetPrimitive("anode");
1565 else c2=new TCanvas("c2");
1566 c2->cd();
1567 c2->SetFillColor(0);
1568
1569 TH1F *noisehist = new TH1F("noisehist","noise",100,0.,(float)2*threshold);
1570 TH1F *anode = new TH1F("anode","Anode Projection",fMaxNofSamples,0.,(float)fMaxNofSamples);
b0f5e3fc 1571 Int_t i,k;
e8189707 1572 for (i=0;i<fNofMaps;i++) {
ece86d9a 1573 CompressionParam(i,decr,threshold);
1574 if (!same) GetAnodeBaseline(i,baseline,noise);
1575 anode->Reset();
1576 for (k=0;k<fMaxNofSamples;k++) {
1577 Float_t signal=(Float_t)fHitMap2->GetSignal(i,k);
1578 //if (signal <= (float)threshold) noisehist->Fill(signal-baseline);
1579 if (signal <= (float)threshold) noisehist->Fill(signal);
1580 anode->Fill((float)k,signal);
b0f5e3fc 1581 }
ece86d9a 1582 anode->Draw();
1583 c2->Update();
b0f5e3fc 1584 }
ece86d9a 1585 TF1 *gnoise = new TF1("gnoise","gaus",0.,threshold);
b0f5e3fc 1586 noisehist->Fit("gnoise","RQ");
1587 noisehist->Draw();
ece86d9a 1588 c2->Update();
b0f5e3fc 1589 Float_t mnoise = gnoise->GetParameter(1);
1590 cout << "mnoise : " << mnoise << endl;
1591 Float_t rnoise = gnoise->GetParameter(2);
1592 cout << "rnoise : " << rnoise << endl;
1593 delete noisehist;
1594 return rnoise;
1595}
44a312c3 1596
1597//____________________________________________
1598
1599void AliITSsimulationSDD::Print() {
1600
1601 // Print SDD simulation Parameters
1602
1603 cout << "**************************************************" << endl;
1604 cout << " Silicon Drift Detector Simulation Parameters " << endl;
1605 cout << "**************************************************" << endl;
1606 cout << "Flag for Perpendicular tracks: " << (Int_t) fFlag << endl;
1607 cout << "Flag for noise checking: " << (Int_t) fCheckNoise << endl;
1608 cout << "Flag to switch off electronics: " << (Int_t) fDoFFT << endl;
1609 cout << "Number pf Anodes used: " << fNofMaps << endl;
1610 cout << "Number of Time Samples: " << fMaxNofSamples << endl;
1611 cout << "Scale size factor: " << fScaleSize << endl;
1612 cout << "**************************************************" << endl;
1613}