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1 | // -*- mode: c++ -*- | |
2 | /************************************************************************** | |
3 | * This file is property of and copyright by the Experimental Nuclear * | |
4 | * Physics Group, Dep. of Physics * | |
5 | * University of Oslo, Norway, 2007 * | |
6 | * * | |
7 | * Author: Per Thomas Hille <perthi@fys.uio.no> for the ALICE HLT Project.* | |
8 | * Contributors are mentioned in the code where appropriate. * | |
9 | * Please report bugs to perthi@fys.uio.no * | |
10 | * * | |
11 | * Permission to use, copy, modify and distribute this software and its * | |
12 | * documentation strictly for non-commercial purposes is hereby granted * | |
13 | * without fee, provided that the above copyright notice appears in all * | |
14 | * copies and that both the copyright notice and this permission notice * | |
15 | * appear in the supporting documentation. The authors make no claims * | |
16 | * about the suitability of this software for any purpose. It is * | |
17 | * provided "as is" without express or implied warranty. * | |
18 | **************************************************************************/ | |
19 | ||
20 | ||
21 | // Extraction of Amplitude and peak | |
22 | // position using specila algorithm | |
23 | // from Alexei Pavlinov | |
24 | // ---------------- | |
25 | // ---------------- | |
26 | ||
27 | #include "AliCaloRawAnalyzerFastFit.h" | |
28 | #include "AliCaloFastAltroFitv0.h" | |
29 | #include "AliCaloFitResults.h" | |
30 | #include "AliCaloBunchInfo.h" | |
31 | #include "TMath.h" | |
32 | #include <iostream> | |
33 | ||
34 | ||
35 | using namespace std; | |
36 | ||
37 | #include "AliCaloConstants.h" | |
38 | //using namespace CaloConstants::FitAlgorithm; | |
39 | //using namespace CaloConstants::ReturnCodes; | |
40 | ||
41 | ClassImp( AliCaloRawAnalyzerFastFit ) | |
42 | ||
43 | AliCaloRawAnalyzerFastFit::AliCaloRawAnalyzerFastFit() : AliCaloRawAnalyzer("Fast Fit (Alexei)", "FF") | |
44 | { | |
45 | // Comment | |
46 | fAlgo= Algo::kFastFit; | |
47 | ||
48 | for(int i=0; i < 1008; i++) | |
49 | { | |
50 | fXAxis[i] = i; | |
51 | } | |
52 | ||
53 | } | |
54 | ||
55 | AliCaloRawAnalyzerFastFit::~AliCaloRawAnalyzerFastFit() | |
56 | { | |
57 | ||
58 | } | |
59 | ||
60 | ||
61 | AliCaloFitResults | |
62 | AliCaloRawAnalyzerFastFit::Evaluate( const vector<AliCaloBunchInfo> &bunchvector, | |
63 | const UInt_t altrocfg1, const UInt_t altrocfg2 ) | |
64 | { | |
65 | // Comment | |
66 | ||
67 | short maxampindex; //index of maximum amplitude | |
68 | short maxamp; //Maximum amplitude | |
69 | int index = SelectBunch( bunchvector, &maxampindex, &maxamp ); | |
70 | ||
71 | if( index >= 0) | |
72 | { | |
73 | Float_t ped = ReverseAndSubtractPed( &(bunchvector.at(index)) , altrocfg1, altrocfg2, fReversed ); | |
74 | Float_t maxf = TMath::MaxElement( bunchvector.at(index).GetLength(), fReversed ); | |
75 | short timebinOffset = maxampindex - (bunchvector.at(index).GetLength()-1); | |
76 | ||
77 | if( maxf < fAmpCut || ( maxamp - ped) > fOverflowCut ) // (maxamp - ped) > fOverflowCut = Close to saturation (use low gain then) | |
78 | { | |
79 | return AliCaloFitResults( maxamp, ped, Algo::kCrude, maxf, timebinOffset); | |
80 | } | |
81 | else if ( maxf >= fAmpCut ) // no if statement needed really; keep for readability | |
82 | { | |
83 | int first = 0; | |
84 | int last = 0; | |
85 | int maxrev = maxampindex - bunchvector.at(index).GetStartBin(); | |
86 | ||
87 | SelectSubarray( fReversed, bunchvector.at(index).GetLength(), maxrev , &first, &last); | |
88 | int nsamples = last - first + 1; | |
89 | ||
90 | if( ( nsamples ) >= fNsampleCut ) | |
91 | { | |
92 | Double_t ordered[1008]; | |
93 | ||
94 | for(int i=0; i < nsamples ; i++ ) | |
95 | { | |
96 | ordered[i] = fReversed[first + i]; | |
97 | } | |
98 | ||
99 | Double_t eSignal = 1; // nominal 1 ADC error | |
100 | Double_t dAmp = maxf; | |
101 | Double_t eAmp = 0; | |
102 | Double_t dTime0 = 0; | |
103 | Double_t eTime = 0; | |
104 | Double_t chi2 = 0; | |
105 | Double_t dTau = 2.35; // time-bin units | |
106 | ||
107 | AliCaloFastAltroFitv0::FastFit(fXAxis, ordered , nsamples, | |
108 | eSignal, dTau, dAmp, eAmp, dTime0, eTime, chi2); | |
109 | ||
110 | Double_t dTimeMax = dTime0 + timebinOffset - (maxrev - first) // abs. t0 | |
111 | + dTau; // +tau, makes sum tmax | |
112 | return AliCaloFitResults(maxamp, ped, Ret::kFitPar, dAmp, dTimeMax, timebinOffset, chi2, Ret::kDummy, | |
113 | Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
114 | } // samplecut | |
115 | else | |
116 | { | |
117 | Float_t chi2 = CalculateChi2(maxf, maxrev, first, last); | |
118 | Int_t ndf = last - first - 1; // nsamples - 2 | |
119 | return AliCaloFitResults( maxamp, ped, Ret::kCrude, maxf, timebinOffset, | |
120 | timebinOffset, chi2, ndf, Ret::kDummy, AliCaloFitSubarray(index, maxrev, first, last) ); | |
121 | } | |
122 | } // ampcut | |
123 | } // bunch index | |
124 | ||
125 | return AliCaloFitResults( Ret::kInvalid , Ret::kInvalid ); | |
126 | ||
127 | // return AliCaloFitResults( kInvalid , kInvalid, | |
128 | // kInvalid, kInvalid, kInvalid ); | |
129 | ||
130 | } |