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 **************************************************************************/
18 // Do the Digitization (Digit) from summable Digits (SDigit)
19 // Allow the merging of signal file with background file(s).
21 /////////////////////////////////////////////////////////////////////////////////
23 // AliMUONDigitizerv2 digitizes digits from s-digits.
24 // Merging is allowed from multiple input streams. The first input stream is
25 // assumed to be the signal and all other input streams as assumed to be
27 // Chamber response is applied to the digits identically to AliMUONDigitizerv1.
29 /////////////////////////////////////////////////////////////////////////////////
31 #include "AliMUONData.h"
32 #include "AliMUONLoader.h"
33 #include "AliMUONConstants.h"
34 #include "AliMUONDigit.h"
35 #include "AliMUONDigitizerv2.h"
36 #include "AliMUONTransientDigit.h"
39 ClassImp(AliMUONDigitizerv2)
41 //___________________________________________
42 AliMUONDigitizerv2::AliMUONDigitizerv2() : AliMUONDigitizerv1()
44 // Default ctor - don't use it
47 //___________________________________________
48 AliMUONDigitizerv2::AliMUONDigitizerv2(AliRunDigitizer* manager) : AliMUONDigitizerv1(manager)
50 // ctor which should be used
53 //___________________________________________
54 AliMUONDigitizerv2::~AliMUONDigitizerv2()
59 //-----------------------------------------------------------------------
60 void AliMUONDigitizerv2::GenerateTransientDigits()
62 // Loop over all chambers and s-digits in the input stream and create
63 // AliMUONTransientDigit objects from them. These are then added to fTDList.
65 AliDebug(2,"Generating transient digits using treeH = 0x%X");
70 TClonesArray* muonSDigits;
71 for (Int_t ich = 0; ich < AliMUONConstants::NCh(); ich++) // loop over chamber
73 fMUONData->ResetSDigits();
74 fMUONData->GetCathodeS(0);
75 muonSDigits = fMUONData->SDigits(ich);
76 ndig = muonSDigits->GetEntriesFast();
77 for (k = 0; k < ndig; k++)
79 sDigit = (AliMUONDigit*) muonSDigits->UncheckedAt(k);
80 MakeTransientDigitFromSDigit(ich,sDigit);
82 fMUONData->ResetSDigits();
83 fMUONData->GetCathodeS(1);
84 muonSDigits = fMUONData->SDigits(ich);
85 ndig=muonSDigits->GetEntriesFast();
86 for (k = 0; k < ndig; k++)
88 sDigit = (AliMUONDigit*) muonSDigits->UncheckedAt(k);
89 MakeTransientDigitFromSDigit(ich,sDigit);
91 } // SDigits loop, end loop over chamber
94 //------------------------------------------------------------------------
95 void AliMUONDigitizerv2::MakeTransientDigitFromSDigit(Int_t iChamber, AliMUONDigit* sDigit)
97 // Makes a transient digit from the specified s-digit from the specified chamber.
98 // Once the digit is created it is added to the fTDList.
100 AliDebug(4,Form("Making transient digit from s-digit for chamber %d.", iChamber));
103 // Creating a new TransientDigits from SDigit
104 digits[0] = sDigit->PadX(); // Padx of the Digit
105 digits[1] = sDigit->PadY(); // Pady of the Digit
106 digits[2] = sDigit->Cathode()+1; // Cathode plane
107 digits[3] = sDigit->Signal(); // Induced charge in the Pad
109 digits[4] = sDigit->Signal();
113 digits[5] = sDigit->Hit(); // Hit number in the list
114 if (GetSegmentation() == 1)
117 digits[6] = sDigit->DetElemId();
119 AliDebug(5,Form("Made digit from sDigit 0x%X: PadX %d\tPadY %d\tPlane %d\tCharge %d\tHit %d\tidDE %d",
120 (void*)sDigit, digits[0], digits[1], digits[2], digits[3], digits[5], digits[6]));
123 AliMUONTransientDigit* mTD = new AliMUONTransientDigit(iChamber, digits);
124 // Copy list of tracks and trackcharge
125 for(Int_t itrack = 0; itrack < kMAXTRACKS; itrack++)
127 Int_t track = sDigit->Track(itrack);
128 if (track < 0) break; // Check if we reached the end of the track list.
129 mTD->AddToTrackList( track + fMask, sDigit->TrackCharge(itrack) );
132 OnCreateTransientDigit(mTD, sDigit);
133 AddOrUpdateTransientDigit(mTD);
136 //------------------------------------------------------------------------
137 void AliMUONDigitizerv2::AddDigit(Int_t chamber, Int_t tracks[kMAXTRACKS], Int_t charges[kMAXTRACKS], Int_t digits[7])
139 // Override to add new digits to the digits tree TreeD.
140 fMUONData->AddDigit(chamber, tracks, charges, digits);
143 //------------------------------------------------------------------------
144 Bool_t AliMUONDigitizerv2::InitInputData(AliMUONLoader* muonloader)
146 // Overridden to initialize fMUONData to read from the s-digits tree TreeS.
147 // If the s-digits are not loaded then the muon loader is used to load the
148 // s-digits into memory.
150 AliDebug(3,"Loading s-digits in READ mode and setting the tree address.");
151 fMUONData->SetLoader(muonloader);
153 if (muonloader->TreeS() == NULL)
155 muonloader->LoadSDigits("READ");
156 if (muonloader->TreeS() == NULL)
158 AliError("Can not load the s-digits tree.");
163 fMUONData->SetTreeAddress("S");
167 //------------------------------------------------------------------------
168 void AliMUONDigitizerv2::CleanupInputData(AliMUONLoader* muonloader)
170 // Overridden to release and unload s-digits from memory.
172 AliDebug(3,"Releasing loaded s-digits.");
173 fMUONData->ResetSDigits();
174 muonloader->UnloadSDigits();