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f74edaba | 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 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Short description | |
20 | // | |
21 | //*-- Author : D.Peressounko (RRC KI & SUBATECH) | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | // --- ROOT system --- | |
25 | #include "TFile.h" | |
26 | // --- Standard library --- | |
27 | #include <iostream.h> | |
28 | #include <fstream> | |
29 | ||
30 | // --- AliRoot header files --- | |
31 | #include "AliPHOSConTableDB.h" | |
32 | #include "AliPHOSCalibrationDB.h" | |
33 | #include "AliPHOSGeometry.h" | |
34 | ClassImp(AliPHOSCalibrationDB) | |
35 | ||
36 | ||
37 | //____________________________________________________________________________ | |
38 | AliPHOSCalibrationDB::AliPHOSCalibrationDB():TNamed() | |
39 | { | |
40 | fPedestals = 0 ; | |
41 | fSlopes = 0; | |
42 | fNChannels = 0 ; | |
43 | fctdb = 0 ; | |
44 | } | |
45 | //____________________________________________________________________________ | |
46 | AliPHOSCalibrationDB::AliPHOSCalibrationDB(const char* filename ,const char * database): | |
47 | TNamed("AliPHOSCalibrationDB",database){ | |
48 | //Creates the containers: we prepare places for all channels in PHOS | |
49 | ||
50 | AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance("GPS2","") ; | |
51 | fNChannels = geom->GetNModules()*geom->GetNPhi()*geom->GetNZ()+ | |
52 | geom->GetNumberOfCPVPadsZ()*geom->GetNumberOfCPVPadsPhi()*geom->GetNModules() ; | |
53 | //Note, that to avoid shifting AbsId each time we access data, we do not use | |
54 | //first slot and index runs from 1 to fNChannels inclusively | |
55 | fPedestals = new TArrayF(fNChannels+1) ; | |
56 | fSlopes = new TArrayF(fNChannels+1) ; | |
57 | fctdb = 0 ; | |
58 | } | |
59 | //____________________________________________________________________________ | |
60 | AliPHOSCalibrationDB::~AliPHOSCalibrationDB() | |
61 | { | |
62 | if(fPedestals) | |
63 | delete fPedestals ; | |
64 | if(fSlopes) | |
65 | delete fSlopes ; | |
66 | } | |
67 | //____________________________________________________________________________ | |
68 | Float_t AliPHOSCalibrationDB::Calibrate(Int_t amp, Int_t absId)const | |
69 | { | |
70 | //if absID is known, return calibrated energy, else - zero | |
71 | if(absId <=0 || absId > fNChannels) | |
72 | return 0.0000001 ; | |
73 | ||
74 | Float_t ret = (amp - fPedestals->At(absId))*fSlopes->At(absId); | |
75 | if(ret > 0) | |
76 | return ret ; | |
77 | else | |
78 | return 0.0000001 ; //Should not be zero - to avoid FPE | |
79 | } | |
80 | //____________________________________________________________________________ | |
81 | void AliPHOSCalibrationDB::SetAll(Float_t pedestal, Float_t slope){ | |
82 | //Set all calibration parameters to the same value | |
83 | if(fPedestals) | |
84 | for(Int_t i=0;i<fNChannels;i++){ | |
85 | fPedestals->AddAt(pedestal,i) ; | |
86 | fSlopes->AddAt(slope,i); | |
87 | } | |
88 | else | |
89 | cout << "Please, create me with non-default constructor!" << endl; | |
90 | } | |
91 | //____________________________________________________________________________ | |
92 | void AliPHOSCalibrationDB::ReadCalibrationParameters(const char * filename, Option_t* opt){ | |
93 | //reads calibration parameters from ascii file | |
94 | ||
95 | if(strcmp(opt,"gains")==0){ //read gains | |
96 | if(!fctdb){ | |
97 | cout << "Specify Connections Table Database first" << endl ; | |
98 | return ; | |
99 | } | |
100 | ifstream gainfile(filename) ; | |
101 | for(Int_t i = 1; i<=64; i++){ | |
102 | Float_t slope ; | |
103 | gainfile >> slope ; | |
104 | fSlopes->AddAt(slope,fctdb->Raw2AbsId(i)); | |
105 | } | |
106 | gainfile.close(); | |
107 | } | |
108 | else | |
109 | if(strstr(opt,"pedest")){ //read pedestals | |
110 | if(!fctdb){ | |
111 | cout << "Specify Connections Table Database first" << endl ; | |
112 | return ; | |
113 | } | |
114 | ifstream pfile(filename) ; | |
115 | for(Int_t i = 1; i<=64; i++){ | |
116 | Float_t pedestal ; | |
117 | pfile >> pedestal ; | |
118 | fPedestals->AddAt(pedestal,fctdb->Raw2AbsId(i)); | |
119 | } | |
120 | pfile.close(); | |
121 | } | |
122 | else{ | |
123 | cout << "Available options are " << endl ; | |
124 | cout << " `gains' : to read gains " << endl ; | |
125 | cout << " `pedestals : to read pedestals " << endl ; | |
126 | } | |
127 | } | |
128 | //____________________________________________________________________________ | |
129 | AliPHOSCalibrationDB& AliPHOSCalibrationDB::operator=(AliPHOSCalibrationDB const & cdb) | |
130 | { | |
131 | // | |
132 | fNChannels = cdb.fNChannels; | |
133 | fFileName = cdb.fFileName; | |
134 | fPedestals=cdb.fPedestals ; | |
135 | fSlopes = cdb.fSlopes; | |
136 | return *this ; | |
137 | } |