1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 ///////////////////////////////////////////////////////////////////////////////
18 // TRD MCM (Multi Chip Module) simulator //
20 ///////////////////////////////////////////////////////////////////////////////
26 New release on 2007/08/17
28 AliTRDmcmSim is now stably working and zero suppression function seems ok.
29 From now, the default version of raw data is set to 3 in AliTRDfeeParam.
31 The following internal parameters were abolished because it is useless and
37 GetCol member was modified accordingly.
39 New member function DumpData was prepared for diagnostics.
41 ZSMapping member function was debugged. It was causing crash due to
42 wrong indexing in 1 dimensional numbering. Also code was shaped up better.
46 /*Semi-final version of TRD raw data simulation code with zero suppression (ZS)
47 similar to TRD FEE. ZS is realized by the class group:
53 AliTRDfeeParam has been modified to have more parameters like raw data
54 production version and so on. AliTRDmcmSim is new class and this is the core
55 of MCM (PASA+TRAP) simulator. It has still very simple function and it will be
56 another project to improve this to make it closer to the reall FEE.
57 AliTRDrawData has been modified to use new class AliTRDmcmSim.
59 These modifications were tested on Aug. 02 HEAD version that code itself
60 compiles. I'm sure there must be still bugs and we need testing by as many as
61 possible persons now. Especially it seems HLT part is impacted by problems
62 because some parameters were moved from AliTRDrawData to AliTRDfeeParam (like
63 fRawVersion disappeared from AliTRDrawData).
65 In TRD definition, we have now 4 raw data versions.
67 0 very old offline version (by Bogdan)
68 1 test version (no zero suppression)
69 2 final version (no zero suppression)
70 3 test version (with zero suppression)
72 The default is still set to 2 in AliTRDfeeParam::fgkRAWversion and it uses
73 previously existing codes. If you set this to 3, AliTRDrawData changes behavior
74 to use AliTRDmcmSim with ZS.
76 Plan is after we make sure it works stably, we delete AliTRDmcm which is obsolete.
77 However it still take time because tracklet part is not yet touched.
78 The default raw version is 2.
83 // if no histo is drawn, these are obsolete
87 // only needed if I/O of tracklets is activated
99 #include "AliTRDmcmSim.h"
100 #include "AliTRDfeeParam.h"
101 #include "AliTRDSimParam.h"
102 #include "AliTRDgeometry.h"
103 #include "AliTRDcalibDB.h"
104 #include "AliTRDdigitsManager.h"
105 #include "AliTRDarrayADC.h"
106 // additional for new tail filter and/or tracklet
107 #include "AliTRDtrapAlu.h"
108 #include "AliTRDpadPlane.h"
109 #include "AliTRDtrackletMCM.h"
112 #include "AliLoader.h"
114 ClassImp(AliTRDmcmSim)
116 //_____________________________________________________________________________
117 AliTRDmcmSim::AliTRDmcmSim() :TObject()
118 ,fInitialized(kFALSE)
143 // AliTRDmcmSim default constructor
146 // By default, nothing is initialized.
147 // It is necessary to issue Init before use.
150 //_____________________________________________________________________________
151 AliTRDmcmSim::AliTRDmcmSim(const AliTRDmcmSim &m)
153 ,fInitialized(kFALSE)
179 // AliTRDmcmSim copy constructor
182 // By default, nothing is initialized.
183 // It is necessary to issue Init before use.
186 //_____________________________________________________________________________
187 AliTRDmcmSim::~AliTRDmcmSim()
190 // AliTRDmcmSim destructor
193 if( fADCR != NULL ) {
194 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
195 delete [] fADCR[iadc];
196 delete [] fADCF[iadc];
197 delete [] fADCT[iadc];
198 delete [] fZSM [iadc];
216 //_____________________________________________________________________________
217 AliTRDmcmSim &AliTRDmcmSim::operator=(const AliTRDmcmSim &m)
220 // Assignment operator
224 ((AliTRDmcmSim &) m).Copy(*this);
230 //_____________________________________________________________________________
231 void AliTRDmcmSim::Copy(TObject &m) const
236 ((AliTRDmcmSim &) m).fNextEvent = 0; //new
237 ((AliTRDmcmSim &) m).fMaxTracklets = 0; //new
238 ((AliTRDmcmSim &) m).fInitialized = 0;
239 ((AliTRDmcmSim &) m).fChaId = 0;
240 ((AliTRDmcmSim &) m).fSector = 0;
241 ((AliTRDmcmSim &) m).fStack = 0;
242 ((AliTRDmcmSim &) m).fLayer = 0;
243 ((AliTRDmcmSim &) m).fRobPos = 0;
244 ((AliTRDmcmSim &) m).fMcmPos = 0;
245 ((AliTRDmcmSim &) m).fNADC = 0;
246 ((AliTRDmcmSim &) m).fNTimeBin = 0;
247 ((AliTRDmcmSim &) m).fRow = 0;
248 ((AliTRDmcmSim &) m).fADCR = 0;
249 ((AliTRDmcmSim &) m).fADCF = 0;
250 ((AliTRDmcmSim &) m).fADCT = 0; //new
251 ((AliTRDmcmSim &) m).fPosLUT = 0; //new
252 ((AliTRDmcmSim &) m).fMCMT = 0; //new
253 ((AliTRDmcmSim &) m).fZSM = 0;
254 ((AliTRDmcmSim &) m).fZSM1Dim = 0;
255 ((AliTRDmcmSim &) m).fFeeParam = 0;
256 ((AliTRDmcmSim &) m).fSimParam = 0;
257 ((AliTRDmcmSim &) m).fCal = 0;
258 ((AliTRDmcmSim &) m).fGeo = 0;
262 //_____________________________________________________________________________
264 //void AliTRDmcmSim::Init( Int_t chaId, Int_t robPos, Int_t mcmPos )
265 void AliTRDmcmSim::Init( Int_t chaId, Int_t robPos, Int_t mcmPos, Bool_t newEvent = kFALSE ) // only for readout tree (new event)
268 // Initialize the class with new geometry information
269 // fADC array will be reused with filled by zero
273 fFeeParam = AliTRDfeeParam::Instance();
274 fSimParam = AliTRDSimParam::Instance();
275 fCal = AliTRDcalibDB::Instance();
276 fGeo = new AliTRDgeometry();
278 fSector = fGeo->GetSector( fChaId );
279 fStack = fGeo->GetStack( fChaId );
280 fLayer = fGeo->GetLayer( fChaId );
283 fNADC = fFeeParam->GetNadcMcm();
284 fNTimeBin = fCal->GetNumberOfTimeBins();
285 fRow = fFeeParam->GetPadRowFromMCM( fRobPos, fMcmPos );
287 fMaxTracklets = fFeeParam->GetMaxNrOfTracklets();
292 if (newEvent == kTRUE) {
298 // Allocate ADC data memory if not yet done
299 if( fADCR == NULL ) {
300 fADCR = new Int_t *[fNADC];
301 fADCF = new Int_t *[fNADC];
302 fADCT = new Int_t *[fNADC]; //new
303 fZSM = new Int_t *[fNADC];
304 fZSM1Dim = new Int_t [fNADC];
305 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
306 fADCR[iadc] = new Int_t[fNTimeBin];
307 fADCF[iadc] = new Int_t[fNTimeBin];
308 fADCT[iadc] = new Int_t[fNTimeBin]; //new
309 fZSM [iadc] = new Int_t[fNTimeBin];
313 // Initialize ADC data
314 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
315 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
318 fADCT[iadc][it] = -1; //new
319 fZSM [iadc][it] = 1; // Default unread = 1
321 fZSM1Dim[iadc] = 1; // Default unread = 1
325 fPosLUT = new Int_t[128];
326 for(Int_t i = 0; i<128; i++){
330 fMCMT = new UInt_t[fMaxTracklets];
331 for(Int_t i = 0; i < fMaxTracklets; i++) {
336 fInitialized = kTRUE;
339 //_____________________________________________________________________________
340 Bool_t AliTRDmcmSim::CheckInitialized()
343 // Check whether object is initialized
346 if( ! fInitialized ) {
347 AliDebug(2, Form ("AliTRDmcmSim is not initialized but function other than Init() is called."));
352 //_____________________________________________________________________________
355 void AliTRDmcmSim::SetPosLUT() {
356 Double_t iHi = (Double_t)fCal->GetPRFhi();
357 Double_t iLo = (Double_t)fCal->GetPRFlo();
358 Int_t nBin = fCal->GetPRFbin();
359 Int_t iOff = fLayer * nBin;
360 Int_t kNlayer = fGeo->Nlayer();
362 Float_t *sPRFsmp = new Float_t[nBin*kNlayer];
363 Double_t *sPRFlayer = new Double_t[nBin];
366 for(Int_t i = 0; i<nBin*kNlayer; i++){
368 //printf("%f\n",fCal->GetSampledPRF()[i]);
369 sPRFsmp[i] = fCal->GetSampledPRF()[i];
373 Double_t sWidth = (iHi-iLo)/((Double_t) nBin);
374 Int_t sPad = (Int_t) (1.0/sWidth);
376 // get the PRF for actual layer (interpolated to ibin data-points; 61 measured)
377 for(Int_t iBin = 0; iBin < nBin; iBin++){
378 sPRFlayer[iBin] = (Double_t)sPRFsmp[iOff+iBin];
381 Int_t bin0 = (Int_t)(-iLo / sWidth - 0.5); // bin-nr. for pad-position 0
383 Int_t bin1 = (Int_t)((Double_t)(0.5 - iLo) / sWidth - 0.5); // bin-nr. for pad-position 0.5
385 bin0 = bin0 + 1; //avoid negative values in aYest (start right of symmetry center)
386 while (bin0-sPad<0) {
389 while (bin1+sPad>=nBin) {
393 Double_t* aYest = new Double_t[bin1-bin0+1];
395 /*TH1F* hist1 = new TH1F("h1","yest(y)",128,0,0.5);
396 TH1F* hist2 = new TH1F("h2","y(yest)",128,0,0.5);
397 TH1F* hist3 = new TH1F("h3","y(yest)-yest",128,0,0.5);
398 TH1F* hist4 = new TH1F("h4","y(yest)-yest,discrete",128,0,0.5);
400 TCanvas *c1 = new TCanvas("c1","c1",800,1000);
402 TCanvas *c2 = new TCanvas("c2","c2",800,1000);
404 TCanvas *c3 = new TCanvas("c3","c3",800,1000);
406 TCanvas *c4 = new TCanvas("c4","c4",800,1000);
409 for(Int_t iBin = bin0; iBin <= bin1; iBin++){
410 aYest[iBin-bin0] = 0.5*(sPRFlayer[iBin-sPad] - sPRFlayer[iBin+sPad])/(sPRFlayer[iBin]); // estimated position from PRF; between 0 and 1
411 //Double_t position = ((Double_t)(iBin)+0.5)*sWidth+iLo;
412 // hist1->Fill(position,aYest[iBin-bin0]);
417 Double_t aY[128]; // reversed function
422 for(Int_t j = 0; j<128; j++) { // loop over all Yest; LUT has 128 entries;
423 Double_t yest = ((Double_t)j)/256;
426 while (yest>aYest[iBin] && iBin<(bin1-bin0)) {
429 if((iBin == bin1 - bin0)&&(yest>aYest[iBin])) {
430 aY[j] = 0.5; // yest too big
431 //hist2->Fill(yest,aY[j]);
435 Int_t bin_d = iBin + bin0 - 1;
436 Int_t bin_u = iBin + bin0;
437 Double_t y_d = ((Double_t)bin_d + 0.5)*sWidth + iLo; // lower y
438 Double_t y_u = ((Double_t)bin_u + 0.5)*sWidth + iLo; // upper y
439 Double_t yest_d = aYest[iBin-1]; // lower estimated y
440 Double_t yest_u = aYest[iBin]; // upper estimated y
442 aY[j] = ((yest-yest_d)/(yest_u-yest_d))*(y_u-y_d) + y_d;
443 //hist2->Fill(yest,aY[j]);
446 aY[j] = aY[j] - yest;
447 //hist3->Fill(yest,aY[j]);
449 a.AssignDouble(aY[j]);
451 fPosLUT[j] = a.GetValue(); // 1+8Bit value;128 entries;LUT is steered by abs(Q(i+1)-Q(i-1))/Q(i)=COG and gives the correction to COG/2
452 //hist4->Fill(yest,fPosLUT[j]);
465 //_____________________________________________________________________________
466 Int_t* AliTRDmcmSim::GetPosLUT(){
472 void AliTRDmcmSim::SetData( Int_t iadc, Int_t *adc )
475 // Store ADC data into array of raw data
478 if( !CheckInitialized() ) return;
480 if( iadc < 0 || iadc >= fNADC ) {
481 //Log (Form ("Error: iadc is out of range (should be 0 to %d).", fNADC-1));
485 for( int it = 0 ; it < fNTimeBin ; it++ ) {
486 fADCR[iadc][it] = (Int_t)(adc[it]);
490 //_____________________________________________________________________________
491 void AliTRDmcmSim::SetData( Int_t iadc, Int_t it, Int_t adc )
494 // Store ADC data into array of raw data
497 if( !CheckInitialized() ) return;
499 if( iadc < 0 || iadc >= fNADC ) {
500 //Log (Form ("Error: iadc is out of range (should be 0 to %d).", fNADC-1));
504 fADCR[iadc][it] = adc;
507 //_____________________________________________________________________________
508 void AliTRDmcmSim::SetDataPedestal( Int_t iadc )
511 // Store ADC data into array of raw data
514 if( !CheckInitialized() ) return;
516 if( iadc < 0 || iadc >= fNADC ) {
517 //Log (Form ("Error: iadc is out of range (should be 0 to %d).", fNADC-1));
521 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
522 fADCR[iadc][it] = fSimParam->GetADCbaseline();
526 //_____________________________________________________________________________
527 Int_t AliTRDmcmSim::GetCol( Int_t iadc )
530 // Return column id of the pad for the given ADC channel
533 if( !CheckInitialized() ) return -1;
535 return fFeeParam->GetPadColFromADC(fRobPos, fMcmPos, iadc);
538 //_____________________________________________________________________________
539 Int_t AliTRDmcmSim::ProduceRawStream( UInt_t *buf, Int_t maxSize )
542 // Produce raw data stream from this MCM and put in buf
543 // Returns number of words filled, or negative value
544 // with -1 * number of overflowed words
549 Int_t nw = 0; // Number of written words
550 Int_t of = 0; // Number of overflowed words
551 Int_t rawVer = fFeeParam->GetRAWversion();
554 if( !CheckInitialized() ) return 0;
556 if( fFeeParam->GetRAWstoreRaw() ) {
562 // Produce MCM header
563 x = ((fRobPos * fFeeParam->GetNmcmRob() + fMcmPos) << 24) | ((iEv % 0x100000) << 4) | 0xC;
574 for( Int_t iAdc = 0 ; iAdc < fNADC ; iAdc++ ) {
575 if( fZSM1Dim[iAdc] == 0 ) { // 0 means not suppressed
587 // Produce ADC data. 3 timebins are packed into one 32 bits word
588 // In this version, different ADC channel will NOT share the same word
590 UInt_t aa=0, a1=0, a2=0, a3=0;
592 for (Int_t iAdc = 0; iAdc < 21; iAdc++ ) {
593 if( rawVer>= 3 && fZSM1Dim[iAdc] != 0 ) continue; // suppressed
594 aa = !(iAdc & 1) + 2;
595 for (Int_t iT = 0; iT < fNTimeBin; iT+=3 ) {
596 a1 = ((iT ) < fNTimeBin ) ? adc[iAdc][iT ] : 0;
597 a2 = ((iT + 1) < fNTimeBin ) ? adc[iAdc][iT+1] : 0;
598 a3 = ((iT + 2) < fNTimeBin ) ? adc[iAdc][iT+2] : 0;
599 x = (a3 << 22) | (a2 << 12) | (a1 << 2) | aa;
609 if( of != 0 ) return -of; else return nw;
612 //_____________________________________________________________________________
613 Int_t AliTRDmcmSim::ProduceRawStreamV2( UInt_t *buf, Int_t maxSize, UInt_t iEv )
616 // Produce raw data stream from this MCM and put in buf
617 // Returns number of words filled, or negative value
618 // with -1 * number of overflowed words
623 Int_t nw = 0; // Number of written words
624 Int_t of = 0; // Number of overflowed words
625 Int_t rawVer = fFeeParam->GetRAWversion();
627 Int_t nActiveADC = 0; // number of activated ADC bits in a word
629 if( !CheckInitialized() ) return 0;
631 if( fFeeParam->GetRAWstoreRaw() ) {
637 // Produce MCM header : xrrr mmmm eeee eeee eeee eeee eeee 1100
638 // x : 0 before , 1 since 10.2007
639 // r : Readout board position (Alice numbering)
641 // e : Event counter from 1
642 //x = (1<<31) | ((fRobPos * fFeeParam->GetNmcmRob() + fMcmPos) << 24) | ((iEv % 0x100000) << 4) | 0xC;
643 x = (1<<31) | (fRobPos << 28) | (fMcmPos << 24) | ((iEv % 0x100000) << 4) | 0xC;
646 //printf("\nMCM header: %X ",x);
652 // Produce ADC mask : nncc cccm mmmm mmmm mmmm mmmm mmmm 1100
653 // n : unused , c : ADC count, m : selected ADCs
656 for( Int_t iAdc = 0 ; iAdc < fNADC ; iAdc++ ) {
657 if( fZSM1Dim[iAdc] == 0 ) { // 0 means not suppressed
658 x = x | (1 << (iAdc+4) ); // last 4 digit reserved for 1100=0xc
659 nActiveADC++; // number of 1 in mmm....m
662 x = x | (1 << 30) | ( ( 0x3FFFFFFC ) & (~(nActiveADC) << 25) ) | 0xC; // nn = 01, ccccc are inverted, 0xc=1100
663 //printf("nActiveADC=%d=%08X, inverted=%X ",nActiveADC,nActiveADC,x );
667 //printf("ADC mask: %X nMask=%d ADC data: ",x,nActiveADC);
674 // Produce ADC data. 3 timebins are packed into one 32 bits word
675 // In this version, different ADC channel will NOT share the same word
677 UInt_t aa=0, a1=0, a2=0, a3=0;
679 for (Int_t iAdc = 0; iAdc < 21; iAdc++ ) {
680 if( rawVer>= 3 && fZSM1Dim[iAdc] != 0 ) continue; // Zero Suppression, 0 means not suppressed
681 aa = !(iAdc & 1) + 2; // 3 for the even ADC channel , 2 for the odd ADC channel
682 for (Int_t iT = 0; iT < fNTimeBin; iT+=3 ) {
683 a1 = ((iT ) < fNTimeBin ) ? adc[iAdc][iT ] : 0;
684 a2 = ((iT + 1) < fNTimeBin ) ? adc[iAdc][iT+1] : 0;
685 a3 = ((iT + 2) < fNTimeBin ) ? adc[iAdc][iT+2] : 0;
686 x = (a3 << 22) | (a2 << 12) | (a1 << 2) | aa;
697 if( of != 0 ) return -of; else return nw;
700 //_____________________________________________________________________________
701 Int_t AliTRDmcmSim::ProduceTrackletStream( UInt_t *buf, Int_t maxSize )
704 // Produce tracklet data stream from this MCM and put in buf
705 // Returns number of words filled, or negative value
706 // with -1 * number of overflowed words
710 Int_t nw = 0; // Number of written words
711 Int_t of = 0; // Number of overflowed words
713 if( !CheckInitialized() ) return 0;
715 // Produce tracklet data. A maximum of four 32 Bit words will be written per MCM
716 // fMCMT is filled continuously until no more tracklet words available
719 while ( (wd < fMaxTracklets) && (fMCMT[wd] > 0) ){
730 if( of != 0 ) return -of; else return nw;
734 //_____________________________________________________________________________
735 void AliTRDmcmSim::Filter()
738 // Apply digital filter
741 if( !CheckInitialized() ) return;
743 // Initialize filtered data array with raw data
744 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
745 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
746 fADCF[iadc][it] = fADCR[iadc][it];
750 // Then apply fileters one by one to filtered data array
751 if( fFeeParam->IsPFon() ) FilterPedestal();
752 if( fFeeParam->IsGFon() ) FilterGain();
753 if( fFeeParam->IsTFon() ) FilterTail();
756 //_____________________________________________________________________________
757 void AliTRDmcmSim::FilterPedestal()
762 // Apply pedestal filter
765 Int_t ap = fSimParam->GetADCbaseline(); // ADC instrinsic pedestal
766 Int_t ep = fFeeParam->GetPFeffectPedestal(); // effective pedestal
767 //Int_t tc = fFeeParam->GetPFtimeConstant(); // this makes no sense yet
769 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
770 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
771 fADCF[iadc][it] = fADCF[iadc][it] - ap + ep;
776 //_____________________________________________________________________________
777 void AliTRDmcmSim::FilterGain()
780 // Apply gain filter (not implemented)
781 // Later it will be implemented because gain digital filiter will
782 // increase noise level.
787 //_____________________________________________________________________________
788 void AliTRDmcmSim::FilterTail()
791 // Apply exponential tail filter (Bogdan's version)
794 Double_t *dtarg = new Double_t[fNTimeBin];
795 Int_t *itarg = new Int_t[fNTimeBin];
796 Int_t nexp = fFeeParam->GetTFnExp();
797 Int_t tftype = fFeeParam->GetTFtype();
801 case 0: // Exponential Filter Analog Bogdan
802 for (Int_t iCol = 0; iCol < fNADC; iCol++) {
803 FilterSimDeConvExpA( fADCF[iCol], dtarg, fNTimeBin, nexp);
804 for (Int_t iTime = 0; iTime < fNTimeBin; iTime++) {
805 fADCF[iCol][iTime] = (Int_t) TMath::Max(0.0,dtarg[iTime]);
810 case 1: // Exponential filter digital Bogdan
811 for (Int_t iCol = 0; iCol < fNADC; iCol++) {
812 FilterSimDeConvExpD( fADCF[iCol], itarg, fNTimeBin, nexp);
813 for (Int_t iTime = 0; iTime < fNTimeBin; iTime++) {
814 fADCF[iCol][iTime] = itarg[iTime];
819 case 2: // Exponential filter Marian special
820 for (Int_t iCol = 0; iCol < fNADC; iCol++) {
821 FilterSimDeConvExpMI( fADCF[iCol], dtarg, fNTimeBin);
822 for (Int_t iTime = 0; iTime < fNTimeBin; iTime++) {
823 fADCF[iCol][iTime] = (Int_t) TMath::Max(0.0,dtarg[iTime]);
829 case 3: // Exponential filter using AliTRDtrapAlu class
830 for (Int_t iCol = 0; iCol < fNADC; iCol++) {
831 FilterSimDeConvExpEl( fADCF[iCol], itarg, fNTimeBin, nexp);
832 for (Int_t iTime = 0; iTime < fNTimeBin; iTime++) {
833 fADCF[iCol][iTime] = itarg[iTime]>>2; // to be used for raw-data
834 fADCT[iCol][iTime] = itarg[iTime]; // 12bits; to be used for tracklet; tracklet will have own container;
841 AliError(Form("Invalid filter type %d ! \n", tftype ));
850 //_____________________________________________________________________________
851 void AliTRDmcmSim::ZSMapping()
854 // Zero Suppression Mapping implemented in TRAP chip
856 // See detail TRAP manual "Data Indication" section:
857 // http://www.kip.uni-heidelberg.de/ti/TRD/doc/trap/TRAP-UserManual.pdf
860 Int_t eBIS = fFeeParam->GetEBsglIndThr(); // TRAP default = 0x4 (Tis=4)
861 Int_t eBIT = fFeeParam->GetEBsumIndThr(); // TRAP default = 0x28 (Tit=40)
862 Int_t eBIL = fFeeParam->GetEBindLUT(); // TRAP default = 0xf0
863 // (lookup table accept (I2,I1,I0)=(111)
864 // or (110) or (101) or (100))
865 Int_t eBIN = fFeeParam->GetEBignoreNeighbour(); // TRAP default = 1 (no neighbor sensitivity)
866 Int_t ep = AliTRDfeeParam::GetPFeffectPedestal();
868 if( !CheckInitialized() ) return;
870 for( Int_t iadc = 1 ; iadc < fNADC-1; iadc++ ) {
871 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
873 // Get ADC data currently in filter buffer
874 Int_t ap = fADCF[iadc-1][it] - ep; // previous
875 Int_t ac = fADCF[iadc ][it] - ep; // current
876 Int_t an = fADCF[iadc+1][it] - ep; // next
878 // evaluate three conditions
879 Int_t i0 = ( ac >= ap && ac >= an ) ? 0 : 1; // peak center detection
880 Int_t i1 = ( ap + ac + an > eBIT ) ? 0 : 1; // cluster
881 Int_t i2 = ( ac > eBIS ) ? 0 : 1; // absolute large peak
883 Int_t i = i2 * 4 + i1 * 2 + i0; // Bit position in lookup table
884 Int_t d = (eBIL >> i) & 1; // Looking up (here d=0 means true
885 // and d=1 means false according to TRAP manual)
888 if( eBIN == 0 ) { // turn on neighboring ADCs
889 fZSM[iadc-1][it] &= d;
890 fZSM[iadc+1][it] &= d;
896 // do 1 dim projection
897 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
898 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
899 fZSM1Dim[iadc] &= fZSM[iadc][it];
905 //_____________________________________________________________________________
906 void AliTRDmcmSim::DumpData( char *f, char *target )
909 // Dump data stored (for debugging).
910 // target should contain one or multiple of the following characters
912 // F for filtered data
913 // Z for zero suppression map
915 // other characters are simply ignored
918 UInt_t tempbuf[1024];
920 if( !CheckInitialized() ) return;
922 std::ofstream of( f, std::ios::out | std::ios::app );
923 of << Form("AliTRDmcmSim::DumpData det=%03d sm=%02d stack=%d layer=%d rob=%d mcm=%02d\n",
924 fChaId, fSector, fStack, fLayer, fRobPos, fMcmPos );
926 for( int t=0 ; target[t] != 0 ; t++ ) {
927 switch( target[t] ) {
930 of << Form("fADCR (raw ADC data)\n");
931 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
932 of << Form(" ADC %02d: ", iadc);
933 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
934 of << Form("% 4d", fADCR[iadc][it]);
941 of << Form("fADCF (filtered ADC data)\n");
942 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
943 of << Form(" ADC %02d: ", iadc);
944 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
945 of << Form("% 4d", fADCF[iadc][it]);
952 of << Form("fZSM and fZSM1Dim (Zero Suppression Map)\n");
953 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
954 of << Form(" ADC %02d: ", iadc);
955 if( fZSM1Dim[iadc] == 0 ) { of << " R " ; } else { of << " . "; } // R:read .:suppressed
956 for( Int_t it = 0 ; it < fNTimeBin ; it++ ) {
957 if( fZSM[iadc][it] == 0 ) { of << " R"; } else { of << " ."; } // R:read .:suppressed
964 Int_t s = ProduceRawStream( tempbuf, 1024 );
965 of << Form("Stream for Raw Simulation size=%d rawver=%d\n", s, fFeeParam->GetRAWversion());
966 of << Form(" address data\n");
967 for( int i = 0 ; i < s ; i++ ) {
968 of << Form(" %04x %08x\n", i, tempbuf[i]);
974 //_____________________________________________________________________________
975 void AliTRDmcmSim::FilterSimDeConvExpA(Int_t *source, Double_t *target
976 , Int_t n, Int_t nexp)
979 // Exponential filter "analog"
980 // source will not be changed
985 Double_t reminder[2];
989 Double_t coefficients[2];
991 // Initialize (coefficient = alpha, rates = lambda)
992 // FilterOpt.C (aliroot@pel:/homel/aliroot/root/work/beamt/CERN02)
994 Double_t r1 = (Double_t)fFeeParam->GetTFr1();
995 Double_t r2 = (Double_t)fFeeParam->GetTFr2();
996 Double_t c1 = (Double_t)fFeeParam->GetTFc1();
997 Double_t c2 = (Double_t)fFeeParam->GetTFc2();
999 coefficients[0] = c1;
1000 coefficients[1] = c2;
1003 rates[0] = TMath::Exp(-dt/(r1));
1004 rates[1] = TMath::Exp(-dt/(r2));
1006 // Attention: computation order is important
1008 for (k = 0; k < nexp; k++) {
1012 for (i = 0; i < n; i++) {
1014 result = ((Double_t)source[i] - correction); // no rescaling
1017 for (k = 0; k < nexp; k++) {
1018 reminder[k] = rates[k] * (reminder[k] + coefficients[k] * result);
1022 for (k = 0; k < nexp; k++) {
1023 correction += reminder[k];
1028 //_____________________________________________________________________________
1029 void AliTRDmcmSim::FilterSimDeConvExpD(Int_t *source, Int_t *target, Int_t n
1033 // Exponential filter "digital"
1034 // source will not be changed
1044 // FilterOpt.C (aliroot@pel:/homel/aliroot/root/work/beamt/CERN02)
1045 // initialize (coefficient = alpha, rates = lambda)
1048 Double_t r1 = (Double_t)fFeeParam->GetTFr1();
1049 Double_t r2 = (Double_t)fFeeParam->GetTFr2();
1050 Double_t c1 = (Double_t)fFeeParam->GetTFc1();
1051 Double_t c2 = (Double_t)fFeeParam->GetTFc2();
1053 Int_t fLambdaL = (Int_t)((TMath::Exp(-dt/r1) - 0.75) * 2048.0);
1054 Int_t fLambdaS = (Int_t)((TMath::Exp(-dt/r2) - 0.25) * 2048.0);
1055 Int_t iLambdaL = fLambdaL & 0x01FF; iLambdaL |= 0x0600; // 9 bit paramter + fixed bits
1056 Int_t iLambdaS = fLambdaS & 0x01FF; iLambdaS |= 0x0200; // 9 bit paramter + fixed bits
1059 fAlphaL = (Int_t) (c1 * 2048.0);
1060 iAlphaL = fAlphaL & 0x03FF; // 10 bit paramter
1063 fAlphaL = (Int_t) (c1 * 2048.0);
1064 fAlphaS = (Int_t) ((c2 - 0.5) * 2048.0);
1065 iAlphaL = fAlphaL & 0x03FF; // 10 bit paramter
1066 iAlphaS = fAlphaS & 0x03FF; iAlphaS |= 0x0400; // 10 bit paramter + fixed bits
1069 Double_t iAl = iAlphaL / 2048.0; // alpha L: correspondence to floating point numbers
1070 Double_t iAs = iAlphaS / 2048.0; // alpha S: correspondence to floating point numbers
1071 Double_t iLl = iLambdaL / 2048.0; // lambda L: correspondence to floating point numbers
1072 Double_t iLs = iLambdaS / 2048.0; // lambda S: correspondence to floating point numbers
1080 Int_t iFactor = ((Int_t) fFeeParam->GetPFeffectPedestal() ) << 2;
1082 Double_t xi = 1 - (iLl*iAs + iLs*iAl); // Calculation of equilibrium values of the
1083 rem1 = (Int_t) ((iFactor/xi) * ((1-iLs)*iLl*iAl)); // Internal registers to prevent switch on effects.
1084 rem2 = (Int_t) ((iFactor/xi) * ((1-iLl)*iLs*iAs));
1086 // further initialization
1087 if ((rem1 + rem2) > 0x0FFF) {
1088 correction = 0x0FFF;
1091 correction = (rem1 + rem2) & 0x0FFF;
1094 fTailPed = iFactor - correction;
1096 for (i = 0; i < n; i++) {
1098 result = (source[i] - correction);
1099 if (result < 0) { // Too much undershoot
1105 h1 = (rem1 + ((iAlphaL * result) >> 11));
1113 h2 = (rem2 + ((iAlphaS * result) >> 11));
1121 rem1 = (iLambdaL * h1 ) >> 11;
1122 rem2 = (iLambdaS * h2 ) >> 11;
1124 if ((rem1 + rem2) > 0x0FFF) {
1125 correction = 0x0FFF;
1128 correction = (rem1 + rem2) & 0x0FFF;
1135 //_____________________________________________________________________________
1136 void AliTRDmcmSim::FilterSimDeConvExpMI(Int_t *source, Double_t *target
1140 // Exponential filter (M. Ivanov)
1141 // source will not be changed
1149 for (i = 0; i < n; i++) {
1150 sig1[i] = (Double_t)source[i];
1154 Float_t lambda0 = (1.0 / fFeeParam->GetTFr2()) * dt;
1155 Float_t lambda1 = (1.0 / fFeeParam->GetTFr1()) * dt;
1157 FilterSimTailMakerSpline( sig1, sig2, lambda0, n);
1158 FilterSimTailCancelationMI( sig2, sig3, 0.7, lambda1, n);
1160 for (i = 0; i < n; i++) {
1161 target[i] = sig3[i];
1166 //______________________________________________________________________________
1167 void AliTRDmcmSim::FilterSimTailMakerSpline(Double_t *ampin, Double_t *ampout
1168 , Double_t lambda, Int_t n)
1171 // Special filter (M. Ivanov)
1175 Double_t l = TMath::Exp(-lambda*0.5);
1179 // Initialize in[] and out[] goes 0 ... 2*n+19
1180 for (i = 0; i < n*2+20; i++) {
1186 in[1] = (ampin[0] + ampin[1]) * 0.5;
1188 // Add charge to the end
1189 for (i = 0; i < 22; i++) {
1190 in[2*(n-1)+i] = ampin[n-1]; // in[] goes 2*n-2, 2*n-1, ... , 2*n+19
1193 // Use arithmetic mean
1194 for (i = 1; i < n-1; i++) {
1195 in[2*i] = ampin[i]; // in[] goes 2, 3, ... , 2*n-4, 2*n-3
1196 in[2*i+1] = ((ampin[i]+ampin[i+1]))/2.;
1202 for (i = 2*n; i >= 0; i--) {
1203 out[i] = in[i] + temp;
1204 temp = l*(temp+in[i]);
1207 for (i = 0; i < n; i++){
1208 //ampout[i] = out[2*i+1]; // org
1209 ampout[i] = out[2*i];
1214 //______________________________________________________________________________
1215 void AliTRDmcmSim::FilterSimTailCancelationMI(Double_t *ampin, Double_t *ampout
1216 , Double_t norm, Double_t lambda
1220 // Special filter (M. Ivanov)
1225 Double_t l = TMath::Exp(-lambda*0.5);
1226 Double_t k = l*(1.0 - norm*lambda*0.5);
1230 // Initialize in[] and out[] goes 0 ... 2*n+19
1231 for (i = 0; i < n*2+20; i++) {
1237 in[1] = (ampin[0]+ampin[1])*0.5;
1239 // Add charge to the end
1240 for (i =-2; i < 22; i++) {
1241 // in[] goes 2*n-4, 2*n-3, ... , 2*n+19
1242 in[2*(n-1)+i] = ampin[n-1];
1245 for (i = 1; i < n-2; i++) {
1246 // in[] goes 2, 3, ... , 2*n-6, 2*n-5
1248 in[2*i+1] = (9.0 * (ampin[i]+ampin[i+1]) - (ampin[i-1]+ampin[i+2])) / 16.0;
1249 //in[2*i+1] = ((ampin[i]+ampin[i+1]))/2.0;
1255 for (i = 1; i <= 2*n; i++) {
1256 out[i] = in[i] + (k-l)*temp;
1257 temp = in[i] + k *temp;
1260 for (i = 0; i < n; i++) {
1261 //ampout[i] = out[2*i+1]; // org
1262 //ampout[i] = TMath::Max(out[2*i+1],0.0); // org
1263 ampout[i] = TMath::Max(out[2*i],0.0);
1268 //_____________________________________________________________________________________
1269 //the following filter uses AliTRDtrapAlu-class
1271 void AliTRDmcmSim::FilterSimDeConvExpEl(Int_t *source, Int_t *target, Int_t n, Int_t nexp) {
1272 //static Int_t count = 0;
1275 Double_t r1 = (Double_t)fFeeParam->GetTFr1();
1276 Double_t r2 = (Double_t)fFeeParam->GetTFr2();
1277 Double_t c1 = (Double_t)fFeeParam->GetTFc1();
1278 Double_t c2 = (Double_t)fFeeParam->GetTFc2();
1282 //it is assumed that r1,r2,c1,c2 are given such, that the configuration values are in the ranges according to TRAP-manual
1283 //parameters need to be adjusted
1284 AliTRDtrapAlu lambdaL;
1285 AliTRDtrapAlu lambdaS;
1286 AliTRDtrapAlu alphaL;
1287 AliTRDtrapAlu alphaS;
1289 AliTRDtrapAlu correction;
1290 AliTRDtrapAlu result;
1294 AliTRDtrapAlu bSource;
1303 lambdaL.AssignDouble(TMath::Exp(-dt/r1));
1304 lambdaS.AssignDouble(TMath::Exp(-dt/r2));
1305 alphaL.AssignDouble(c1); // in AliTRDfeeParam the number of exponentials is set and also the according time constants
1306 alphaS.AssignDouble(c2); // later it should be: alphaS=1-alphaL
1308 //data is enlarged to 12 bits, including 2 bits after the comma; class AliTRDtrapAlu is used to handle arithmetics correctly
1309 correction.Init(10,2);
1315 for(Int_t i = 0; i < n; i++) {
1316 bSource.AssignInt(source[i]);
1317 result = bSource - correction; // subtraction can produce an underflow
1318 if(result.GetSign() == kTRUE) {
1319 result.AssignInt(0);
1322 //target[i] = result.GetValuePre(); // later, target and source should become AliTRDtrapAlu,too in order to simulate the 10+2Bits through the filter properly
1324 target[i] = result.GetValue(); // 12 bit-value; to get the corresponding integer value, target must be shifted: target>>2
1326 //printf("target-Wert zur Zeit %d : %d",i,target[i]);
1329 bufL = bufL + (result * alphaL);
1330 bufL = bufL * lambdaL;
1332 bufS = bufS + (result * alphaS);
1333 bufS = bufS * lambdaS; // eventually this should look like:
1334 // bufS = (bufS + (result - result * alphaL)) * lambdaS // alphaS=1-alphaL; then alphaS-variable is not needed any more
1336 correction = bufL + bufS; //check for overflow intrinsic; if overflowed, correction is set to 0x03FF
1348 //__________________________________________________________________________________
1351 // in order to use the Tracklets, please first
1352 // -- set AliTRDfeeParam::fgkTracklet to kTRUE, in order to switch on Tracklet-calculation
1353 // -- set AliTRDfeeParam::fgkTFtype to 3, in order to use the new tail cancellation filter
1354 // currently tracklets from filtered digits are only given when setting fgkTFtype (AliTRDfeeParam) to 3
1355 // -- set AliTRDfeeParam::fgkMCTrackletOutput to kTRUE, if you want to use the Tracklet output container with information about the Tracklet position (MCM, channel number)
1357 // The code is designed such that the less possible calculations with AliTRDtrapAlu class-objects are performed; whenever possible calculations are done with doubles or integers and the results are transformed into the right format
1359 void AliTRDmcmSim::Tracklet(){
1360 // tracklet calculation
1361 // if you use this code after a simulation, please make sure the same filter-settings as in the simulation are set in AliTRDfeeParam
1363 if(!CheckInitialized()){ return; }
1365 Bool_t filtered = kTRUE;
1371 if(fADCT[0][0]==-1){ // check if filter was applied
1373 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
1374 for( Int_t iT = 0 ; iT < fNTimeBin ; iT++ ) {
1375 data.AssignInt(fADCR[iadc][iT]);
1376 fADCT[iadc][iT] = data.GetValue(); // all incoming values are positive 10+2 bit values; if el.filter was called, this is done correctly
1382 // the online ordering of mcm's is reverse to the TRAP-manual-ordering! reverse fADCT (to be consistent to TRAP), then do all calculations
1384 Int_t** rev0 = new Int_t *[fNADC];
1385 Int_t** rev1 = new Int_t *[fNADC];
1387 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
1388 rev0[iadc] = new Int_t[fNTimeBin];
1389 rev1[iadc] = new Int_t[fNTimeBin];
1390 for( Int_t iT = 0; iT < fNTimeBin; iT++) {
1391 if( iadc <= fNADC-iadc-1 ) {
1392 rev0[iadc][iT] = fADCT[fNADC-iadc-1][iT];
1393 rev1[iadc][iT] = fADCT[iadc][iT];
1394 fADCT[iadc][iT] = rev0[iadc][iT];
1397 rev0[iadc][iT] = rev1[fNADC-iadc-1][iT];
1398 fADCT[iadc][iT] = rev0[iadc][iT];
1402 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ ) {
1403 delete[] rev0[iadc];
1404 delete[] rev1[iadc];
1413 // get the filtered pedestal; supports only electronic tail-cancellation filter
1414 AliTRDtrapAlu filPed;
1416 Int_t *ieffped = new Int_t[fNTimeBin];
1417 for(Int_t iT = 0; iT < fNTimeBin; iT++){
1421 if( filtered == kTRUE ) {
1422 if( fFeeParam->IsPFon() ){
1423 ep = fFeeParam->GetPFeffectPedestal();
1425 Int_t nexp = fFeeParam->GetTFnExp();
1426 Int_t *isource = new Int_t[fNTimeBin];
1428 filPed.AssignInt(ep);
1429 Int_t epf = filPed.GetValue();
1430 for(Int_t iT = 0; iT < fNTimeBin; iT++){
1435 if( fFeeParam->IsTFon() ) {
1436 FilterSimDeConvExpEl( isource, ieffped, fNTimeBin, nexp);
1442 //the following values should go to AliTRDfeeParam once they are defined; then they have to be read in properly
1443 //naming follows conventions in TRAP-manual
1446 Bool_t bVBY = kTRUE; // cluster-verification bypass
1448 Double_t cQTParam = 0; // cluster quality threshold; granularity 2^-10; range: 0<=cQT/2^-10<=2^-4 - 2^-10
1449 AliTRDtrapAlu cQTAlu;
1450 cQTAlu.Init(1,10,0,63);
1451 cQTAlu.AssignDouble(cQTParam);
1452 Int_t cQT = cQTAlu.GetValue();
1455 Int_t tFS = fFeeParam->GetLinearFitStart(); // linear fit start
1456 Int_t tFE = fFeeParam->GetLinearFitEnd(); // linear fit stop
1458 // charge accumulators
1459 Int_t tQS0 = fFeeParam->GetQacc0Start(); // start-time for charge-accumulator 0
1460 Int_t tQE0 = fFeeParam->GetQacc0End(); // stop-time for charge-accumulator 0
1461 Int_t tQS1 = fFeeParam->GetQacc1Start(); // start-time for charge-accumulator 1
1462 Int_t tQE1 = fFeeParam->GetQacc1End(); // stop-time for charge-accumulator 1
1463 // values set such that tQS0=tFS; tQE0=tQS1-1; tFE=tQE1; want to do (QS0+QS1)/N
1465 Double_t cTHParam = (Double_t)fFeeParam->GetMinClusterCharge(); // cluster charge threshold
1466 AliTRDtrapAlu cTHAlu;
1468 cTHAlu.AssignDouble(cTHParam);
1469 Int_t cTH = cTHAlu.GetValue(); // cTH used for comparison
1477 List_t selection[7]; // list with 7 elements
1478 List_t *list = NULL;
1479 List_t *listLeft = NULL;
1481 Int_t* qsum = new Int_t[fNADC];
1484 AliTRDtrapAlu qsumAlu;
1485 qsumAlu.Init(12,2); // charge sum will be 12+2 bits
1486 AliTRDtrapAlu dCOGAlu;
1487 dCOGAlu.Init(1,7,0,127); // COG will be 1+7 Bits; maximum 1 - 2^-7 for LUT
1488 AliTRDtrapAlu yrawAlu;
1489 yrawAlu.Init(1,8,-1,255);
1491 yAlu.Init(1,16,-1,0xFF00); // only first 8 past-comma bits filled;additional 8 bits for accuracy;maximum 1 - 2^-8; sign is given by + or -
1493 xAlu.Init(5,8); // 8 past-comma bits because value will be added/multiplied to another value with this accuracy
1494 AliTRDtrapAlu xxAlu;
1496 AliTRDtrapAlu yyAlu;
1497 yyAlu.Init(1,16,0,0xFFFF); // maximum is 2^16-1; 16Bit for past-commas
1498 AliTRDtrapAlu xyAlu;
1502 AliTRDtrapAlu XXAlu;
1505 YAlu.Init(5,8); // 14 bit, 1 is sign-bit; therefore only 13 bit
1506 AliTRDtrapAlu YYAlu;
1508 AliTRDtrapAlu XYAlu;
1509 XYAlu.Init(8,8); // 17 bit, 1 is sign-bit; therefore only 16 bit
1510 AliTRDtrapAlu qtruncAlu;
1511 qtruncAlu.Init(12,0);
1512 AliTRDtrapAlu QT0Alu;
1514 AliTRDtrapAlu QT1Alu;
1517 AliTRDtrapAlu oneAlu;
1521 AliTRDtrapAlu inverseNAlu;
1522 inverseNAlu.Init(1,8); // simulates the LUT for 1/N
1523 AliTRDtrapAlu MeanChargeAlu; // mean charge in ADC counts
1524 MeanChargeAlu.Init(8,0);
1525 AliTRDtrapAlu TotalChargeAlu;
1526 TotalChargeAlu.Init(17,8);
1527 //nr of post comma bits should be the same for inverseN and TotalCharge
1530 SetPosLUT(); // initialize the position correction LUT for this MCM;
1533 // fit-sums; remapping!; 0,1,2->0; 1,2,3->1; ... 18,19,20->18
1534 Int_t *X = new Int_t[fNADC-2];
1535 Int_t *XX = new Int_t[fNADC-2];
1536 Int_t *Y = new Int_t[fNADC-2];
1537 Int_t *YY = new Int_t[fNADC-2];
1538 Int_t *XY = new Int_t[fNADC-2];
1539 Int_t *N = new Int_t[fNADC-2];
1540 Int_t *QT0 = new Int_t[fNADC-2]; // accumulated charge
1541 Int_t *QT1 = new Int_t[fNADC-2]; // accumulated charge
1543 for (Int_t iCol = 0; iCol < fNADC-2; iCol++) {
1545 // initialize fit-sums
1557 filPed.Init(7,2); // convert filtered pedestal into 7+2Bits
1559 for(Int_t iT = 0; iT < fNTimeBin; iT++){
1561 if(iT<tFS || iT>=tFE) continue; // linear fit yes/no?
1564 Int_t portChannel[4] = {-1,-1,-1,-1};
1565 Int_t clusterCharge[4] = {0,0,0,0};
1566 Int_t leftCharge[4] = {0,0,0,0};
1567 Int_t centerCharge[4] = {0,0,0,0};
1568 Int_t rightCharge[4] = {0,0,0,0};
1572 filPed.AssignFormatted(ieffped[iT]); // no size-checking when using AssignFormatted; ieffped>=0
1573 filPed = filPed; // this checks the size
1575 ieffped[iT] = filPed.GetValue();
1577 for(Int_t i = 0; i<7; i++){
1578 selection[i].next = NULL;
1579 selection[i].iadc = -1; // value of -1: invalid adc
1580 selection[i].value = 0;
1583 // selection[0] is starting list-element; just for pointing
1585 // loop over inner adc's
1586 for (Int_t iCol = 1; iCol < fNADC-1; iCol++) {
1588 Int_t left = fADCT[iCol-1][iT];
1589 Int_t center = fADCT[iCol][iT];
1590 Int_t right = fADCT[iCol+1][iT];
1592 Int_t sum = left + center + right; // cluster charge sum
1593 qsumAlu.AssignFormatted(sum);
1594 qsumAlu = qsumAlu; // size-checking; redundant
1596 qsum[iCol] = qsumAlu.GetValue();
1598 //hit detection and masking
1601 if(qsum[iCol]>=(cTH + 3*ieffped[iT])){ // effective pedestal of all three channels must be added to cTH(+20); this is not parallel to TRAP manual; maybe cTH has to be adjusted in fFeeParam; therefore channels are not yet reduced by their pedestal
1602 mark |= 1; // marker
1611 // get selection of 6 adc's and sort,starting with greatest values
1613 //read three from right side and sort (primitive sorting algorithm)
1614 Int_t i = 0; // adc number
1615 Int_t j = 1; // selection number
1616 while(i<fNADC-2 && j<=3){
1618 if( ((mark>>(i-1)) & 1) == 1) {
1619 selection[j].iadc = fNADC-1-i;
1620 selection[j].value = qsum[fNADC-1-i]>>6; // for hit-selection only the first 8 out of the 14 Bits are used for comparison
1622 // insert into sorted list
1623 listLeft = &selection[0];
1624 list = listLeft->next;
1627 while((list->next != NULL) && (selection[j].value <= list->value)){
1632 if(selection[j].value<=list->value){
1633 selection[j].next = list->next;
1634 list->next = &selection[j];
1637 listLeft->next = &selection[j];
1638 selection[j].next = list;
1642 listLeft->next = &selection[j];
1643 selection[j].next = list;
1651 // read three from left side
1653 while(k>i && j<=6) {
1654 if( ((mark>>(k-1)) & 1) == 1) {
1655 selection[j].iadc = fNADC-1-k;
1656 selection[j].value = qsum[fNADC-1-k]>>6;
1658 listLeft = &selection[0];
1659 list = listLeft->next;
1662 while((list->next != NULL) && (selection[j].value <= list->value)){
1667 if(selection[j].value<=list->value){
1668 selection[j].next = list->next;
1669 list->next = &selection[j];
1672 listLeft->next = &selection[j];
1673 selection[j].next = list;
1677 listLeft->next = &selection[j];
1678 selection[j].next = list;
1686 // get the four with greatest charge-sum
1687 list = &selection[0];
1688 for(i = 0; i<4; i++){
1689 if(list->next == NULL) continue;
1691 if(list->iadc == -1) continue;
1692 Int_t adc = list->iadc; // channel number with selected hit
1694 // the following arrays contain the four chosen channels in 1 time-bin
1695 portChannel[i] = adc;
1696 clusterCharge[i] = qsum[adc];
1697 leftCharge[i] = fADCT[adc-1][iT] - ieffped[iT]; // reduce by filtered pedestal (pedestal is part of the signal)
1698 centerCharge[i] = fADCT[adc][iT] - ieffped[iT];
1699 rightCharge[i] = fADCT[adc+1][iT] - ieffped[iT];
1704 // cluster verification
1706 for(i = 0; i<4; i++){
1707 Int_t lr = leftCharge[i]*rightCharge[i]*1024;
1708 Int_t cc = centerCharge[i]*centerCharge[i]*cQT;
1710 portChannel[i] = -1; // set to invalid address
1711 clusterCharge[i] = 0;
1716 // fit-sums of valid channels
1717 // local hit position
1718 for(i = 0; i<4; i++){
1719 if (centerCharge[i] == 0) {
1720 portChannel[i] = -1;
1721 }// prevent division by 0
1723 if (portChannel[i] == -1) continue;
1725 Double_t dCOG = (Double_t)(rightCharge[i]-leftCharge[i])/centerCharge[i];
1727 Bool_t sign = (dCOG>=0.0) ? kFALSE : kTRUE;
1728 dCOG = (sign == kFALSE) ? dCOG : -dCOG; // AssignDouble doesn't allow for signed doubles
1729 dCOGAlu.AssignDouble(dCOG);
1730 Int_t iLUTpos = dCOGAlu.GetValue(); // steers position in LUT
1733 yrawAlu.AssignDouble(dCOG);
1734 Int_t iCOG = yrawAlu.GetValue();
1735 Int_t y = iCOG + fPosLUT[iLUTpos % 128]; // local position in pad-units
1736 yrawAlu.AssignFormatted(y); // 0<y<1
1737 yAlu = yrawAlu; // convert to 16 past-comma bits
1739 if(sign == kTRUE) yAlu.SetSign(-1); // buffer width of 9 bits; sign on real (not estimated) position
1740 xAlu.AssignInt(iT); // buffer width of 5 bits
1743 xxAlu = xAlu * xAlu; // buffer width of 10 bits -> fulfilled by x*x
1745 yyAlu = yAlu * yAlu; // buffer width of 16 bits
1747 xyAlu = xAlu * yAlu; // buffer width of 14 bits
1749 Int_t adc = portChannel[i]-1; // remapping! port-channel contains channel-nr. of inner adc's (1..19; mapped to 0..18)
1751 // calculate fit-sums recursively
1752 // interpretation of their bit-length is given as comment
1754 // be aware that the accuracy of the result of a calculation is always determined by the accuracy of the less accurate value
1756 XAlu.AssignFormatted(X[adc]);
1757 XAlu = XAlu + xAlu; // buffer width of 9 bits
1758 X[adc] = XAlu.GetValue();
1760 XXAlu.AssignFormatted(XX[adc]);
1761 XXAlu = XXAlu + xxAlu; // buffer width of 14 bits
1762 XX[adc] = XXAlu.GetValue();
1765 YAlu.AssignFormatted(-Y[adc]); // make sure that only positive values are assigned; sign-setting must be done by hand
1769 YAlu.AssignFormatted(Y[adc]);
1773 YAlu = YAlu + yAlu; // buffer width of 14 bits (8 past-comma);
1774 Y[adc] = YAlu.GetSignedValue();
1776 YYAlu.AssignFormatted(YY[adc]);
1777 YYAlu = YYAlu + yyAlu; // buffer width of 21 bits (16 past-comma)
1778 YY[adc] = YYAlu.GetValue();
1781 XYAlu.AssignFormatted(-XY[adc]);
1785 XYAlu.AssignFormatted(XY[adc]);
1789 XYAlu = XYAlu + xyAlu; // buffer allows 17 bits (8 past-comma)
1790 XY[adc] = XYAlu.GetSignedValue();
1792 N[adc] = N[adc] + 1;
1795 // accumulated charge
1796 qsumAlu.AssignFormatted(qsum[adc+1]); // qsum was not remapped!
1797 qtruncAlu = qsumAlu;
1799 if(iT>=tQS0 && iT<=tQE0){
1800 QT0Alu.AssignFormatted(QT0[adc]);
1801 QT0Alu = QT0Alu + qtruncAlu;
1802 QT0[adc] = QT0Alu.GetValue();
1803 //interpretation of QT0 as 12bit-value (all pre-comma); is this as it should be done?; buffer allows 15 Bit
1806 if(iT>=tQS1 && iT<=tQE1){
1807 QT1Alu.AssignFormatted(QT1[adc]);
1808 QT1Alu = QT1Alu + qtruncAlu;
1809 QT1[adc] = QT1Alu.GetValue();
1810 //interpretation of QT1 as 12bit-value; buffer allows 16 Bit
1814 // remapping is done!!
1820 // tracklet-assembly
1822 // put into AliTRDfeeParam and take care that values are in proper range
1823 const Int_t cTCL = 1; // left adc: number of hits; 8<=TCL<=31 (?? 1<=cTCL<+8 ??)
1824 const Int_t cTCT = 8; // joint number of hits; 8<=TCT<=31; note that according to TRAP manual this number cannot be lower than 8; however it should be adjustable to the number of hits in the fit time range (40%)
1826 Int_t mPair = 0; // marker for possible tracklet pairs
1827 Int_t* hitSum = new Int_t[fNADC-3];
1828 // hitSum[0] means: hit sum of remapped channels 0 and 1; hitSum[17]: 17 and 18;
1830 // check for all possible tracklet-pairs of adjacent channels (two are merged); mark the left channel of the chosen pairs
1831 for (Int_t iCol = 0; iCol < fNADC-3; iCol++) {
1832 hitSum[iCol] = N[iCol] + N[iCol+1];
1833 if ((N[iCol]>=cTCL) && (hitSum[iCol]>=cTCT)) {
1834 mPair |= 1; // mark as possible channel-pair
1841 List_t* selectPair = new List_t[fNADC-2]; // list with 18 elements (0..18) containing the left channel-nr and hit sums
1842 // selectPair[18] is starting list-element just for pointing
1843 for(Int_t k = 0; k<fNADC-2; k++){
1844 selectPair[k].next = NULL;
1845 selectPair[k].iadc = -1; // invalid adc
1846 selectPair[k].value = 0;
1853 // read marker and sort according to hit-sum
1855 Int_t adcL = 0; // left adc-channel-number (remapped)
1856 Int_t selNr = 0; // current number in list
1858 // insert marked channels into list and sort according to hit-sum
1859 while(adcL < fNADC-3 && selNr < fNADC-3){
1861 if( ((mPair>>((fNADC-4)-(adcL))) & 1) == 1) {
1862 selectPair[selNr].iadc = adcL;
1863 selectPair[selNr].value = hitSum[adcL];
1865 listLeft = &selectPair[fNADC-3];
1866 list = listLeft->next;
1869 while((list->next != NULL) && (selectPair[selNr].value <= list->value)){
1874 if(selectPair[selNr].value <= list->value){
1875 selectPair[selNr].next = list->next;
1876 list->next = &selectPair[selNr];
1879 listLeft->next = &selectPair[selNr];
1880 selectPair[selNr].next = list;
1885 listLeft->next = &selectPair[selNr];
1886 selectPair[selNr].next = list;
1894 //select up to 4 channels with maximum number of hits
1895 Int_t lpairChannel[4] = {-1,-1,-1,-1}; // save the left channel-numbers of pairs with most hit-sum
1896 Int_t rpairChannel[4] = {-1,-1,-1,-1}; // save the right channel, too; needed for detecting double tracklets
1897 list = &selectPair[fNADC-3];
1899 for (Int_t i = 0; i<4; i++) {
1900 if(list->next == NULL) continue;
1902 if(list->iadc == -1) continue;
1903 lpairChannel[i] = list->iadc; // channel number with selected hit
1904 rpairChannel[i] = lpairChannel[i]+1;
1907 // avoid submission of double tracklets
1908 for (Int_t i = 3; i>0; i--) {
1909 for (Int_t j = i-1; j>-1; j--) {
1910 if(lpairChannel[i] == rpairChannel[j]) {
1911 lpairChannel[i] = -1;
1912 rpairChannel[i] = -1;
1915 /* if(rpairChannel[i] == lpairChannel[j]) {
1916 lpairChannel[i] = -1;
1917 rpairChannel[i] = -1;
1923 // merging of the fit-sums of the remainig channels
1924 // assume same data-word-width as for fit-sums for 1 channel
1937 Int_t mMeanCharge[4];
1942 for (Int_t i = 0; i<4; i++){
1943 mADC[i] = -1; // set to invalid number
1957 oneAlu.AssignInt(1);
1958 one = oneAlu.GetValue(); // one with 8 past comma bits
1960 for (Int_t i = 0; i<4; i++){
1963 mADC[i] = lpairChannel[i]; // mapping of merged sums to left channel nr. (0,1->0; 1,2->1; ... 17,18->17)
1964 // the adc and pad-mapping should now be one to one: adc i is linked to pad i; TRAP-numbering
1965 Int_t madc = mADC[i];
1966 if (madc == -1) continue;
1968 YAlu.AssignInt(N[rpairChannel[i]]);
1969 Int_t wpad = YAlu.GetValue(); // enlarge hit counter of right channel by 8 past-comma bits; YAlu can have 5 pre-comma bits (values up to 63); hit counter<=nr of time bins (24)
1971 mN[i] = hitSum[madc];
1973 // don't merge fit sums in case of a stand-alone tracklet (consisting of only 1 channel); in that case only left channel makes up the fit sums
1974 if (N[madc+1] == 0) {
1975 mQT0[i] = QT0[madc];
1976 mQT1[i] = QT1[madc];
1981 // is it ok to do the size-checking for the merged fit-sums with the same format as for single-channel fit-sums?
1983 mQT0[i] = QT0[madc] + QT0[madc+1];
1984 QT0Alu.AssignFormatted(mQT0[i]);
1985 QT0Alu = QT0Alu; // size-check
1986 mQT0[i] = QT0Alu.GetValue(); // write back
1988 mQT1[i] = QT1[madc] + QT1[madc+1];
1989 QT1Alu.AssignFormatted(mQT1[i]);
1991 mQT1[i] = QT1Alu.GetValue();
1994 // calculate the mean charge in adc values; later to be replaced by electron likelihood
1995 mMeanCharge[i] = mQT0[i] + mQT1[i]; // total charge
1996 mMeanCharge[i] = mMeanCharge[i]>>2; // losing of accuracy; accounts for high mean charge
1997 // simulate LUT for 1/N; LUT is fed with the double-accurate pre-calculated value of 1/N; accuracy of entries has to be adjusted to real TRAP
1999 inverseNAlu.AssignDouble(invN);
2000 inverseN = inverseNAlu.GetValue();
2001 mMeanCharge[i] = mMeanCharge[i] * inverseN; // now to be interpreted with 8 past-comma bits
2002 TotalChargeAlu.AssignFormatted(mMeanCharge[i]);
2003 TotalChargeAlu = TotalChargeAlu;
2004 MeanChargeAlu = TotalChargeAlu;
2005 mMeanCharge[i] = MeanChargeAlu.GetValue();
2007 // this check is not necessary; it is just for efficiency reasons
2008 if (N[madc+1] == 0) {
2017 mX[i] = X[madc] + X[madc+1];
2018 XAlu.AssignFormatted(mX[i]);
2020 mX[i] = XAlu.GetValue();
2022 mXX[i] = XX[madc] + XX[madc+1];
2023 XXAlu.AssignFormatted(mXX[i]);
2025 mXX[i] = XXAlu.GetValue();
2028 mY[i] = Y[madc] + Y[madc+1] + wpad;
2030 YAlu.AssignFormatted(-mY[i]);
2034 YAlu.AssignFormatted(mY[i]);
2038 mY[i] = YAlu.GetSignedValue();
2040 mXY[i] = XY[madc] + XY[madc+1] + X[madc+1]*one; // multiplication by one to maintain the data format
2043 XYAlu.AssignFormatted(-mXY[i]);
2047 XYAlu.AssignFormatted(mXY[i]);
2051 mXY[i] = XYAlu.GetSignedValue();
2053 mYY[i] = YY[madc] + YY[madc+1] + 2*Y[madc+1]*one+ wpad*one;
2055 YYAlu.AssignFormatted(-mYY[i]);
2059 YYAlu.AssignFormatted(mYY[i]);
2064 mYY[i] = YYAlu.GetSignedValue();
2069 // calculation of offset and slope from the merged fit-sums;
2070 // YY is needed for some error measure only; still to be done
2071 // be aware that all values are relative values (scale: timebin-width; pad-width) and are integer values on special scale
2073 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2074 // !!important note: the offset is calculated from hits in the time bin range between tFS and tFE; it corresponds to the value at the height of the time bin tFS which does NOT need to correspond to the upper side of the drift !!
2075 // !!volume (cathode wire plane). The offset cannot be rescaled as long as it is unknown which is the first time bin that contains hits from the drift region and thus to which distance from the cathode plane tFS corresponds. !!
2076 // !!This has to be taken into account by the GTU. Furthermore a Lorentz correction might have to be applied to the offset (see below). !!
2077 // !!In this implementation it is assumed that no miscalibration containing changing drift velocities in the amplification region is used. !!
2078 // !!The corrections to the offset (e.g. no ExB correction applied as offset is supposed to be on top of drift region; however not at anode wire, so some inclination of drifting clusters due to Lorentz angle exists) are only !!
2079 // !!valid (in approximation) if tFS is close to the beginning of the drift region. !!
2080 // !!The slope however can be converted to a deflection length between electrode and cathode wire plane as it is clear that the drift region is sampled 20 times !!
2081 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2083 // which formats should be chosen?
2084 AliTRDtrapAlu denomAlu;
2085 denomAlu.Init(20,8);
2086 AliTRDtrapAlu numAlu;
2088 // is this enough pre-comma place? covers the range of the 13 bit-word of the transmitted offset
2089 // offset measured in coord. of left channel must be between -0.5 and 1.5; 14 pre-comma bits because numerator can be big
2091 for (Int_t i = 0; i<4; i++) {
2092 if (mADC[i] == -1) continue;
2094 Int_t num0 = (mN[i]*mXX[i]-mX[i]*mX[i]);
2096 denomAlu.AssignInt(-num0); // num0 does not have to be interpreted as having past-comma bits -> AssignInt
2097 denomAlu.SetSign(-1);
2100 denomAlu.AssignInt(num0);
2101 denomAlu.SetSign(1);
2104 Int_t num1 = mN[i]*mXY[i] - mX[i]*mY[i];
2106 numAlu.AssignFormatted(-num1); // value of num1 is already formatted to have 8 past-comma bits
2110 numAlu.AssignFormatted(num1);
2113 numAlu = numAlu/denomAlu;
2114 mSlope[i] = numAlu.GetSignedValue();
2116 Int_t num2 = mXX[i]*mY[i] - mX[i]*mXY[i];
2119 numAlu.AssignFormatted(-num2);
2123 numAlu.AssignFormatted(num2);
2127 numAlu = numAlu/denomAlu;
2130 mOffset[i] = numAlu.GetSignedValue();
2132 denomAlu.SetSign(1);
2135 //numAlu.AssignInt(mADC[i]+1); // according to TRAP-manual but trafo not to middle of chamber (0.5 channels away)
2136 numAlu.AssignDouble((Double_t)mADC[i] + 1.5); // numAlu has enough pre-comma place for that; correct trafo, best values
2137 mOffset[i] = mOffset[i] + numAlu.GetValue(); // transform offset to a coord.system relative to chip; +1 to avoid neg. values
2139 // up to here: adc-mapping according to TRAP manual and in line with pad-col mapping
2140 // reverse adc-counting to be again in line with the online mapping
2141 mADC[i] = fNADC - 4 - mADC[i]; // fNADC-4-mADC[i]: 0..17; remapping necessary;
2142 mADC[i] = mADC[i] + 2;
2143 // +2: mapping onto original ADC-online-counting: inner adc's corresponding to a chip's pasa: number 2..19
2146 // adc-counting is corresponding to online mapping; use AliTRDfeeParam::GetPadColFromADC to get the pad to which adc is connected;
2147 // pad-column mapping is reverse to adc-online mapping; TRAP adc-mapping is in line with pad-mapping (increase in same direction);
2149 // transform parameters to the local coordinate-system of a stack (used by GTU)
2150 AliTRDpadPlane* padPlane = fGeo->CreatePadPlane(fLayer,fStack);
2152 Double_t padWidthI = padPlane->GetWidthIPad()*10.0; // get values in cm; want them in mm
2153 //Double_t padWidthO = padPlane->GetWidthOPad()*10; // difference between outer pad-widths not included; in real TRAP??
2155 // difference between width of inner and outer pads of a row is not accounted for;
2157 Double_t magField = 0.4; // z-component of magnetic field in Tesla; adjust to current simulation!!; magnetic field can hardly be evaluated for the position of each mcm
2158 Double_t eCharge = 0.3; // unit charge in (GeV/c)/m*T
2159 Double_t ptMin = 2.3; // minimum transverse momentum (GeV/c); to be adjusted(?)
2161 Double_t granularityOffset = 0.160; // granularity for offset in mm
2162 Double_t granularitySlope = 0.140; // granularity for slope in mm
2164 // get the coordinates in SM-system; parameters:
2166 Double_t zPos = (padPlane->GetRowPos(fRow))*10.0; // z-position of the MCM; fRow is counted on a chamber; SM consists of 5
2167 // zPos is position of pad-borders;
2168 Double_t zOffset = 0.0;
2169 if ( fRow == 0 || fRow == 15 ) {
2170 zOffset = padPlane->GetLengthOPad();
2173 zOffset = padPlane->GetLengthIPad();
2175 zOffset = (-1.0) * zOffset/2.0;
2176 // turn zPos to be z-coordinate at middle of pad-row
2177 zPos = zPos + zOffset;
2180 Double_t xPos = 0.0; // x-position of the upper border of the drift-chamber of actual layer
2181 Int_t icol = 0; // column-number of adc-channel
2182 Double_t yPos[4]; // y-position of the pad to which ADC is connected
2183 Double_t dx = 30.0; // height of drift-chamber in mm; maybe retrieve from AliTRDGeometry
2184 Double_t freqSample = fFeeParam->GetSamplingFrequency(); // retrieve the sampling frequency (10.019750 MHz)
2185 Double_t vdrift = fCal->GetVdriftAverage(fChaId); // averaged drift velocity for this detector (1.500000 cm/us)
2186 Int_t nrOfDriftTimeBins = Int_t(dx/10.0*freqSample/vdrift); // the number of time bins in the drift region (20)
2187 Int_t nrOfAmplTimeBins = 2; // the number of time bins between anode wire and cathode wires in ampl.region (3.5mm)(guess)(suppose v_drift+3.5cm/us there=>all clusters arrive at anode wire within one time bin (100ns))
2188 Int_t nrOfOffsetCorrTimeBins = tFS - nrOfAmplTimeBins - 1; // -1 is to be conservative; offset correction will not remove the shift but is supposed to improve it; if tFS = 5, 2 drift time bins before tFS are assumed
2189 if(nrOfOffsetCorrTimeBins < 0) nrOfOffsetCorrTimeBins = 0;// don't apply offset correction if no drift time bins before tFS can be assumed
2190 Double_t lorTan = fCal->GetOmegaTau(vdrift,magField); // tan of the Lorentz-angle for this detector; could be evaluated and set as a parameter for each mcm
2191 //Double_t lorAngle = 7.0; // Lorentz-angle in degrees
2192 Double_t tiltAngle = padPlane->GetTiltingAngle(); // sign-respecting tilting angle of pads in actual layer
2193 Double_t tiltTan = TMath::Tan(TMath::Pi()/180.0 * tiltAngle);
2194 //Double_t lorTan = TMath::Tan(TMath::Pi()/180.0 * lorAngle);
2196 Double_t alphaMax[4]; // maximum deflection from the direction to the primary vertex; granularity of hit pads
2197 Double_t slopeMin[4]; // local limits for the deflection
2198 Double_t slopeMax[4];
2199 Int_t mslopeMin[4]; // in granularity units; to be compared to mSlope[i]
2203 // x coord. of upper side of drift chambers in local SM-system (in mm)
2204 // obtained by evaluating the x-range of the hits; should be crosschecked; only drift, not amplification region taken into account (30mm);
2205 // the y-deflection is given as difference of y between lower and upper side of drift-chamber, not pad-plane;
2228 // calculation of offset-correction n:
2230 Int_t nCorrectOffset = (fRobPos % 2 == 0) ? ((fMcmPos % 4)) : ( 4 + (fMcmPos % 4));
2232 nCorrectOffset = (nCorrectOffset - 4)*18 - 1;
2233 if (nCorrectOffset < 0) {
2234 numAlu.AssignInt(-nCorrectOffset);
2238 numAlu.AssignInt(nCorrectOffset);
2241 nCorrectOffset = numAlu.GetSignedValue();
2243 // the Lorentz correction to the offset
2244 Double_t lorCorrectOffset = lorTan *(Double_t)nrOfOffsetCorrTimeBins*vdrift*10.0/freqSample; // Lorentz offset correction in mm
2247 lorCorrectOffset = lorCorrectOffset/padWidthI; // Lorentz correction in pad width units
2249 if(lorCorrectOffset < 0) {
2250 numAlu.AssignDouble(-lorCorrectOffset);
2254 numAlu.AssignDouble(lorCorrectOffset);
2258 Int_t mlorCorrectOffset = numAlu.GetSignedValue();
2261 Double_t mCorrectOffset = padWidthI/granularityOffset; // >= 0.0
2263 // calculation of slope-correction
2265 // this is only true for tracks coming (approx.) from primary vertex
2266 // everything is evaluated for a tracklet covering the whole drift chamber
2267 Double_t cCorrectSlope = (-lorTan*dx + zPos/xPos*dx*tiltTan)/granularitySlope;
2268 // Double_t cCorrectSlope = zPos/xPos*dx*tiltTan/granularitySlope;
2269 // zPos can be negative! for track from primary vertex: zOut-zIn > 0 <=> zPos > 0
2271 if (cCorrectSlope < 0) {
2272 numAlu.AssignDouble(-cCorrectSlope);
2276 numAlu.AssignDouble(cCorrectSlope);
2279 cCorrectSlope = numAlu.GetSignedValue();
2281 // convert slope to deflection between upper and lower drift-chamber position (slope is given in pad-unit/time-bins)
2282 // different pad-width of outer pads of a pad-plane not taken into account
2283 // note that the fit was only done in the range tFS to tFE, however this range does not need to cover the whole drift region (neither start nor end of it)
2284 // however the tracklets are supposed to be a fit in the drift region thus the linear function is stretched to fit the drift region of 30 mm
2287 Double_t mCorrectSlope = (Double_t)(nrOfDriftTimeBins)*padWidthI/granularitySlope; // >= 0.0
2289 AliTRDtrapAlu correctAlu;
2290 correctAlu.Init(20,8);
2292 AliTRDtrapAlu offsetAlu;
2293 offsetAlu.Init(13,0,-0x1000,0x0FFF); // 13 bit-word; 2-complement (1 sign-bit); asymmetric range
2295 AliTRDtrapAlu slopeAlu;
2296 slopeAlu.Init(7,0,-0x40,0x3F); // 7 bit-word; 2-complement (1 sign-bit);
2298 for (Int_t i = 0; i<4; i++) {
2300 if (mADC[i] == -1) continue;
2302 icol = fFeeParam->GetPadColFromADC(fRobPos,fMcmPos,mADC[i]); // be aware that mADC[i] contains the ADC-number according to online-mapping
2303 yPos[i] = (padPlane->GetColPos(icol))*10.0;
2308 correctAlu.AssignDouble(mCorrectOffset); // done because max. accuracy is 8 bit
2309 mCorrectOffset = correctAlu.GetValueWhole(); // cut offset correction to 8 past-comma bit accuracy
2310 mOffset[i] = (Int_t)((mCorrectOffset)*(Double_t)(mOffset[i] + nCorrectOffset - mlorCorrectOffset));
2311 //mOffset[i] = mOffset[i]*(-1); // adjust to direction of y-axes in online simulation
2313 if (mOffset[i] < 0) {
2314 numAlu.AssignFormatted(-mOffset[i]);
2318 numAlu.AssignFormatted(mOffset[i]);
2323 mOffset[i] = offsetAlu.GetSignedValue();
2328 correctAlu.AssignDouble(mCorrectSlope);
2329 mCorrectSlope = correctAlu.GetValueWhole();
2331 mSlope[i] = (Int_t)((mCorrectSlope*(Double_t)mSlope[i]) + cCorrectSlope);
2333 if (mSlope[i] < 0) {
2334 numAlu.AssignFormatted(-mSlope[i]);
2338 numAlu.AssignFormatted(mSlope[i]);
2342 slopeAlu = numAlu; // here all past-comma values are cut, not rounded; alternatively add +0.5 before cutting (means rounding)
2343 mSlope[i] = slopeAlu.GetSignedValue();
2345 // local (LTU) limits for the deflection
2346 // ATan returns angles in radian
2347 alphaMax[i] = TMath::ASin(eCharge*magField/(2.0*ptMin)*(TMath::Sqrt(xPos*xPos + yPos[i]*yPos[i]))/1000.0); // /1000: mm->m
2348 slopeMin[i] = dx*(TMath::Tan(TMath::ATan(yPos[i]/xPos) - alphaMax[i]))/granularitySlope;
2349 slopeMax[i] = dx*(TMath::Tan(TMath::ATan(yPos[i]/xPos) + alphaMax[i]))/granularitySlope;
2351 if (slopeMin[i] < 0) {
2352 slopeAlu.AssignDouble(-slopeMin[i]);
2353 slopeAlu.SetSign(-1);
2356 slopeAlu.AssignDouble(slopeMin[i]);
2357 slopeAlu.SetSign(1);
2359 mslopeMin[i] = slopeAlu.GetSignedValue(); // the borders should lie inside the range of mSlope -> usage of slopeAlu again
2361 if (slopeMax[i] < 0) {
2362 slopeAlu.AssignDouble(-slopeMax[i]);
2363 slopeAlu.SetSign(-1);
2366 slopeAlu.AssignDouble(slopeMax[i]);
2367 slopeAlu.SetSign(1);
2369 mslopeMax[i] = slopeAlu.GetSignedValue();
2372 // suppress submission of tracks with low stiffness
2373 // put parameters in 32bit-word and submit (write to file as root-file; sort after SM, stack, layer, chamber)
2375 // sort tracklet-words in ascending y-order according to the offset (according to mADC would also be possible)
2376 // up to now they are sorted according to maximum hit sum
2377 // is the sorting really done in the TRAP-chip?
2379 Int_t order[4] = {-1,-1,-1,-1};
2380 Int_t wordnr = 0; // number of tracklet-words
2382 for(Int_t j = 0; j < fMaxTracklets; j++) {
2383 //if( mADC[j] == -1) continue;
2384 if( (mADC[j] == -1) || (mSlope[j] < mslopeMin[j]) || (mSlope[j] > mslopeMax[j])) continue; // this applies a pt-cut
2386 if( wordnr-1 == 0) {
2390 // wordnr-1>0, wordnr-1<4
2391 order[wordnr-1] = j;
2392 for( Int_t k = 0; k < wordnr-1; k++) {
2393 if( mOffset[j] < mOffset[order[k]] ) {
2394 for( Int_t l = wordnr-1; l > k; l-- ) {
2395 order[l] = order[l-1];
2404 // fill the bit-words in ascending order and without gaps
2405 UInt_t bitWord[4] = {0,0,0,0}; // attention: unsigned int to have real 32 bits (no 2-complement)
2406 for(Int_t j = 0; j < wordnr; j++) { // only "wordnr" tracklet-words
2407 //Bool_t rem1 = kTRUE;
2410 //bit-word is 2-complement and therefore without sign
2411 bitWord[j] = 1; // this is the starting 1 of the bit-word (at 33rd position); the 1 must be ignored
2419 /*printf("mean charge: %d\n",mMeanCharge[i]);
2420 printf("row: %d\n",fRow);
2421 printf("slope: %d\n",mSlope[i]);
2422 printf("pad position: %d\n",mOffset[i]);
2423 printf("channel: %d\n",mADC[i]);*/
2425 // electron probability (currently not implemented; the mean charge is just scaled)
2426 shift = (UInt_t)mMeanCharge[i];
2427 for(Int_t iBit = 0; iBit < 8; iBit++) {
2428 bitWord[j] = bitWord[j]<<1;
2429 bitWord[j] |= (shift>>(7-iBit))&1;
2434 shift = (UInt_t)fRow;
2435 for(Int_t iBit = 0; iBit < 4; iBit++) {
2436 bitWord[j] = bitWord[j]<<1;
2437 bitWord[j] |= (shift>>(3-iBit))&1;
2438 //printf("%d", (fRow>>(3-iBit))&1);
2441 // deflection length
2443 shift = (UInt_t)(-mSlope[i]);
2444 // shift2 is 2-complement of shift
2446 for(Int_t iBit = 1; iBit < 7; iBit++) {
2448 shift2 |= (1- (((shift)>>(6-iBit))&1) );
2449 //printf("%d",(1-((-mSlope[i])>>(6-iBit))&1));
2451 shift2 = shift2 + 1;
2453 for(Int_t iBit = 0; iBit < 7; iBit++) {
2454 bitWord[j] = bitWord[j]<<1;
2455 bitWord[j] |= (shift2>>(6-iBit))&1;
2456 //printf("%d",(1-((-mSlope[i])>>(6-iBit))&1));
2460 shift = (UInt_t)(mSlope[i]);
2461 bitWord[j] = bitWord[j]<<1;
2464 for(Int_t iBit = 1; iBit < 7; iBit++) {
2465 bitWord[j] = bitWord[j]<<1;
2466 bitWord[j] |= (shift>>(6-iBit))&1;
2467 //printf("%d",(mSlope[i]>>(6-iBit))&1);
2472 if(mOffset[i] < 0) {
2473 shift = (UInt_t)(-mOffset[i]);
2475 for(Int_t iBit = 1; iBit < 13; iBit++) {
2477 shift2 |= (1-(((shift)>>(12-iBit))&1));
2478 //printf("%d",(1-((-mOffset[i])>>(12-iBit))&1));
2480 shift2 = shift2 + 1;
2482 for(Int_t iBit = 0; iBit < 13; iBit++) {
2483 bitWord[j] = bitWord[j]<<1;
2484 bitWord[j] |= (shift2>>(12-iBit))&1;
2485 //printf("%d",(1-((-mSlope[i])>>(6-iBit))&1));
2489 shift = (UInt_t)mOffset[i];
2490 bitWord[j] = bitWord[j]<<1;
2493 for(Int_t iBit = 1; iBit < 13; iBit++) {
2494 bitWord[j] = bitWord[j]<<1;
2495 bitWord[j] |= (shift>>(12-iBit))&1;
2496 //printf("%d",(mOffset[i]>>(12-iBit))&1);
2502 //printf("bitWord: %u\n",bitWord[j]);
2503 //printf("adc: %d\n",mADC[i]);
2504 fMCMT[j] = bitWord[j];
2523 delete [] selectPair;
2527 //if you want to activate the MC tracklet output, set fgkMCTrackletOutput=kTRUE in AliTRDfeeParam
2529 if (!fFeeParam->GetMCTrackletOutput())
2532 AliLog::SetClassDebugLevel("AliTRDmcmSim", 10);
2533 AliLog::SetFileOutput("../log/tracklet.log");
2535 // testing for wordnr in order to speed up the simulation
2539 UInt_t *trackletWord = new UInt_t[fMaxTracklets];
2540 Int_t *adcChannel = new Int_t[fMaxTracklets];
2541 Int_t *trackRef = new Int_t[fMaxTracklets];
2545 AliTRDdigitsManager *digman = new AliTRDdigitsManager();
2546 digman->ReadDigits(AliRunLoader::Instance()->GetLoader("TRDLoader")->TreeD());
2547 digman->SetUseDictionaries(kTRUE);
2548 AliTRDfeeParam *feeParam = AliTRDfeeParam::Instance();
2550 for (Int_t j = 0; j < fMaxTracklets; j++) {
2552 trackletWord[j] = 0;
2554 if (bitWord[j]!=0) {
2555 trackletWord[u] = bitWord[j];
2556 adcChannel[u] = mADC[i]; // mapping onto the original adc-array to be in line with the digits-adc-ordering (21 channels in total on 1 mcm, 18 belonging to pads); mADC[i] should be >-1 in case bitWord[i]>0
2558 // Finding label of MC track
2559 TH1F *hTrkRef = new TH1F("trackref", "trackref", 100000, 0, 100000);
2561 Int_t padcol = feeParam->GetPadColFromADC(fRobPos, fMcmPos, adcChannel[u]);
2562 Int_t padcol_ngb = feeParam->GetPadColFromADC(fRobPos, fMcmPos, adcChannel[u] - 1);
2563 Int_t padrow = 4 * (fRobPos / 2) + fMcmPos / 4;
2564 Int_t det = 30 * fSector + 6 * fStack + fLayer;
2565 for(Int_t iTimebin = feeParam->GetLinearFitStart(); iTimebin < feeParam->GetLinearFitEnd(); iTimebin++) {
2566 track[0] = digman->GetTrack(0, padrow, padcol, iTimebin, det);
2567 track[1] = digman->GetTrack(1, padrow, padcol, iTimebin, det);
2568 track[2] = digman->GetTrack(2, padrow, padcol, iTimebin, det);
2569 hTrkRef->Fill(track[0]);
2570 if (track[1] != track[0] && track[1] != -1)
2571 hTrkRef->Fill(track[1]);
2572 if (track[2] != track[0] && track[2] != track[1] && track[2] != -1)
2573 hTrkRef->Fill(track[2]);
2574 if (padcol_ngb >= 0) {
2575 track[0] = digman->GetTrack(0, padrow, padcol, iTimebin, det);
2576 track[1] = digman->GetTrack(1, padrow, padcol, iTimebin, det);
2577 track[2] = digman->GetTrack(2, padrow, padcol, iTimebin, det);
2578 hTrkRef->Fill(track[0]);
2579 if (track[1] != track[0] && track[1] != -1)
2580 hTrkRef->Fill(track[1]);
2581 if (track[2] != track[0] && track[2] != track[1] && track[2] != -1)
2582 hTrkRef->Fill(track[2]);
2585 trackRef[u] = hTrkRef->GetMaximumBin() - 1;
2591 AliDataLoader *dl = AliRunLoader::Instance()->GetLoader("TRDLoader")->GetDataLoader("tracklets");
2593 AliError("Could not get the tracklets data loader!");
2596 TTree *trackletTree = dl->Tree();
2599 trackletTree = dl->Tree();
2601 AliTRDtrackletMCM *trkl = new AliTRDtrackletMCM();
2602 TBranch *trkbranch = trackletTree->GetBranch("mcmtrklbranch");
2604 trkbranch = trackletTree->Branch("mcmtrklbranch", "AliTRDtrackletMCM", &trkl, 32000);
2605 trkbranch->SetAddress(&trkl);
2607 for (Int_t iTracklet = 0; iTracklet < fMaxTracklets; iTracklet++) {
2608 if (trackletWord[iTracklet] == 0)
2610 trkl->SetTrackletWord(trackletWord[iTracklet]);
2611 trkl->SetDetector(30*fSector + 6*fStack + fLayer);
2612 trkl->SetROB(fRobPos);
2613 trkl->SetMCM(fMcmPos);
2614 trkl->SetLabel(trackRef[iTracklet]);
2615 trackletTree->Fill();
2618 dl->WriteData("OVERWRITE");
2621 delete [] trackletWord;
2622 delete [] adcChannel;
2627 // error measure for quality of fit (not necessarily needed for the trigger)
2628 // cluster quality threshold (not yet set)
2629 // electron probability
2631 //_____________________________________________________________________________________
2632 void AliTRDmcmSim::GeneratefZSM1Dim()
2635 // Generate the array fZSM1Dim necessary
2636 // for the method ProduceRawStream
2640 // Supressed zeros indicated by -1 in digits array
2641 for( Int_t iadc = 1 ; iadc < fNADC-1; iadc++ )
2643 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2646 if(fADCF[iadc][it]==-1) // If is a supressed value
2650 else // Not suppressed
2657 // Make the 1 dim projection
2658 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ )
2660 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2662 fZSM1Dim[iadc] &= fZSM[iadc][it];
2666 //_______________________________________________________________________________________
2667 void AliTRDmcmSim::CopyArrays()
2670 // Initialize filtered data array with raw data
2671 // Method added for internal consistency
2674 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ )
2676 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2678 fADCF[iadc][it] = fADCR[iadc][it];
2682 //_______________________________________________________________________________________
2683 void AliTRDmcmSim::StartfastZS(Int_t pads, Int_t timebins)
2686 // Initialize just the necessary elements to perform
2687 // the zero suppression in the digitizer
2690 fFeeParam = AliTRDfeeParam::Instance();
2691 fSimParam = AliTRDSimParam::Instance();
2693 fNTimeBin = timebins;
2697 fADCR = new Int_t *[fNADC];
2698 fADCF = new Int_t *[fNADC];
2699 fADCT = new Int_t *[fNADC];
2700 fZSM = new Int_t *[fNADC];
2701 fZSM1Dim = new Int_t [fNADC];
2702 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ )
2704 fADCR[iadc] = new Int_t[fNTimeBin];
2705 fADCF[iadc] = new Int_t[fNTimeBin];
2706 fADCT[iadc] = new Int_t[fNTimeBin];
2707 fZSM [iadc] = new Int_t[fNTimeBin];
2711 for( Int_t iadc = 0 ; iadc < fNADC; iadc++ )
2713 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2715 fADCR[iadc][it] = 0;
2716 fADCF[iadc][it] = 0;
2717 fADCT[iadc][it] = -1;
2718 fZSM [iadc][it] = 1;
2723 fInitialized = kTRUE;
2725 //_______________________________________________________________________________________
2726 void AliTRDmcmSim::FlagDigitsArray(AliTRDarrayADC *tempdigs, Int_t valrow)
2729 // Modify the digits array to flag suppressed values
2732 for( Int_t iadc = 1 ; iadc < fNADC-1; iadc++ )
2734 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2736 if(fZSM[iadc][it]==1)
2738 tempdigs->SetData(valrow,iadc,it,-1);
2743 //_______________________________________________________________________________________
2744 void AliTRDmcmSim::RestoreZeros()
2747 // Restore the zero-suppressed values (set as -1) to the value 0
2750 for( Int_t iadc = 1 ; iadc < fNADC-1; iadc++ )
2752 for( Int_t it = 0 ; it < fNTimeBin ; it++ )
2755 if(fADCF[iadc][it]==-1) //if is a supressed zero, reset to zero