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 /// \class AliMUONTriggerLut
19 /// Local Trigger Look Up Table - reading interface
20 /// LUT data is stored into TH3S histograms and readout
21 /// from the Local Trigger algorithm.
23 #include "AliMUONTriggerLut.h"
31 ClassImp(AliMUONTriggerLut)
34 //----------------------------------------------------------------------
35 AliMUONTriggerLut::AliMUONTriggerLut()
50 //----------------------------------------------------------------------
51 AliMUONTriggerLut::~AliMUONTriggerLut()
67 AliMUONTriggerLut::ReadFromFile(const char* filename)
69 /// Return output of LuT for corresponding TH3S
75 AliFatal(Form("Could not open file %s",filename));
78 fLptPlus = (TH3*)(f.Get("LptPlus")->Clone());
79 fLptMinu = (TH3*)(f.Get("LptMinu")->Clone());
80 fLptUnde = (TH3*)(f.Get("LptUnde")->Clone());
81 fHptPlus = (TH3*)(f.Get("HptPlus")->Clone());
82 fHptMinu = (TH3*)(f.Get("HptMinu")->Clone());
83 fHptUnde = (TH3*)(f.Get("HptUnde")->Clone());
84 fAptPlus = (TH3*)(f.Get("AptPlus")->Clone());
85 fAptMinu = (TH3*)(f.Get("AptMinu")->Clone());
86 fAptUnde = (TH3*)(f.Get("AptUnde")->Clone());
88 // insure we "detach" those histograms from file f
89 fLptPlus->SetDirectory(0);
90 fLptMinu->SetDirectory(0);
91 fLptUnde->SetDirectory(0);
92 fHptPlus->SetDirectory(0);
93 fHptMinu->SetDirectory(0);
94 fHptUnde->SetDirectory(0);
95 fAptPlus->SetDirectory(0);
96 fAptMinu->SetDirectory(0);
97 fAptUnde->SetDirectory(0);
100 //----------------------------------------------------------------------
101 void AliMUONTriggerLut::GetLutOutput(Int_t circuit, Int_t xstrip, Int_t idev,
102 Int_t ystrip, Int_t lutLpt[2],
103 Int_t lutHpt[2], Int_t lutApt[2])
105 /// Return output of LuT for corresponding TH3S
109 ReadFromFile("$(ALICE_ROOT)/MUON/data/MUONTriggerLut.root");
114 Int_t mask = GetMask(ystrip); // get ystrip mask
116 // Low pt..............................................
117 bin = fLptPlus->GetBin(circuit,xstrip,idev);
118 binc = (Short_t)fLptPlus->GetBinContent(bin);
119 if ((binc & mask)!=0) lutLpt[1]=1;
121 bin = fLptMinu->GetBin(circuit,xstrip,idev);
122 binc = (Short_t)fLptMinu->GetBinContent(bin);
123 if ((binc & mask)!=0) lutLpt[0]=1;
125 bin = fLptUnde->GetBin(circuit,xstrip,idev);
126 binc = (Short_t)fLptUnde->GetBinContent(bin);
127 if ((binc & mask)!=0) lutLpt[0]=lutLpt[1]=1;
129 // High pt.............................................
130 bin = fHptPlus->GetBin(circuit,xstrip,idev);
131 binc = (Short_t)fHptPlus->GetBinContent(bin);
132 if ((binc & mask)!=0) lutHpt[1]=1;
134 bin = fHptMinu->GetBin(circuit,xstrip,idev);
135 binc = (Short_t)fHptMinu->GetBinContent(bin);
136 if ((binc & mask)!=0) lutHpt[0]=1;
138 bin = fHptUnde->GetBin(circuit,xstrip,idev);
139 binc = (Short_t)fHptUnde->GetBinContent(bin);
140 if ((binc & mask)!=0) lutHpt[0]=lutHpt[1]=1;
142 // All pts.............................................
143 bin = fAptPlus->GetBin(circuit,xstrip,idev);
144 binc = (Short_t)fAptPlus->GetBinContent(bin);
145 if ((binc & mask)!=0) lutApt[1]=1;
147 bin = fAptMinu->GetBin(circuit,xstrip,idev);
148 binc = (Short_t)fAptMinu->GetBinContent(bin);
149 if ((binc & mask)!=0) lutApt[0]=1;
151 bin = fAptUnde->GetBin(circuit,xstrip,idev);
152 binc = (Short_t)fAptUnde->GetBinContent(bin);
153 if ((binc & mask)!=0) lutApt[0]=lutApt[1]=1;
157 //----------------------------------------------------------------------
158 Int_t AliMUONTriggerLut::GetMask(Int_t ystrip)
160 /// Return the mask corresponding to ystrip
162 Int_t tabMask[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
165 for (Int_t i=0; i<16; i++)
167 mask += tabMask[i]<<i;