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 /// -----------------------
19 /// Class AliMUONTriggerLut
20 /// -----------------------
21 /// Local Trigger Look Up Table
22 /// reading interface LUT data is stored into TH3S histograms and readout
23 /// from the Local Trigger algorithm
24 /// Author: Philippe Crochet
26 #include "AliMUONTriggerLut.h"
34 ClassImp(AliMUONTriggerLut)
37 //----------------------------------------------------------------------
38 AliMUONTriggerLut::AliMUONTriggerLut()
53 //----------------------------------------------------------------------
54 AliMUONTriggerLut::~AliMUONTriggerLut()
70 AliMUONTriggerLut::ReadFromFile(const char* filename)
72 /// Return output of LuT for corresponding TH3S
78 AliFatal(Form("Could not open file %s",filename));
81 fLptPlus = (TH3*)(f.Get("LptPlus")->Clone());
82 fLptMinu = (TH3*)(f.Get("LptMinu")->Clone());
83 fLptUnde = (TH3*)(f.Get("LptUnde")->Clone());
84 fHptPlus = (TH3*)(f.Get("HptPlus")->Clone());
85 fHptMinu = (TH3*)(f.Get("HptMinu")->Clone());
86 fHptUnde = (TH3*)(f.Get("HptUnde")->Clone());
87 fAptPlus = (TH3*)(f.Get("AptPlus")->Clone());
88 fAptMinu = (TH3*)(f.Get("AptMinu")->Clone());
89 fAptUnde = (TH3*)(f.Get("AptUnde")->Clone());
91 // insure we "detach" those histograms from file f
92 fLptPlus->SetDirectory(0);
93 fLptMinu->SetDirectory(0);
94 fLptUnde->SetDirectory(0);
95 fHptPlus->SetDirectory(0);
96 fHptMinu->SetDirectory(0);
97 fHptUnde->SetDirectory(0);
98 fAptPlus->SetDirectory(0);
99 fAptMinu->SetDirectory(0);
100 fAptUnde->SetDirectory(0);
103 //----------------------------------------------------------------------
104 void AliMUONTriggerLut::GetLutOutput(Int_t circuit, Int_t xstrip, Int_t idev,
105 Int_t ystrip, Int_t lutLpt[2],
108 /// Return output of LuT for corresponding TH3S
112 ReadFromFile("$(ALICE_ROOT)/MUON/data/MUONTriggerLut.root");
117 Int_t mask = GetMask(ystrip); // get ystrip mask
119 // Low pt..............................................
120 bin = fLptPlus->GetBin(circuit,xstrip,idev);
121 binc = (Short_t)fLptPlus->GetBinContent(bin);
122 if ((binc & mask)!=0) lutLpt[1]=1;
124 bin = fLptMinu->GetBin(circuit,xstrip,idev);
125 binc = (Short_t)fLptMinu->GetBinContent(bin);
126 if ((binc & mask)!=0) lutLpt[0]=1;
128 bin = fLptUnde->GetBin(circuit,xstrip,idev);
129 binc = (Short_t)fLptUnde->GetBinContent(bin);
130 if ((binc & mask)!=0) lutLpt[0]=lutLpt[1]=1;
132 // High pt.............................................
133 bin = fHptPlus->GetBin(circuit,xstrip,idev);
134 binc = (Short_t)fHptPlus->GetBinContent(bin);
135 if ((binc & mask)!=0) lutHpt[1]=1;
137 bin = fHptMinu->GetBin(circuit,xstrip,idev);
138 binc = (Short_t)fHptMinu->GetBinContent(bin);
139 if ((binc & mask)!=0) lutHpt[0]=1;
141 bin = fHptUnde->GetBin(circuit,xstrip,idev);
142 binc = (Short_t)fHptUnde->GetBinContent(bin);
143 if ((binc & mask)!=0) lutHpt[0]=lutHpt[1]=1;
145 // All pts.............................................
146 bin = fAptPlus->GetBin(circuit,xstrip,idev);
147 binc = (Short_t)fAptPlus->GetBinContent(bin);
148 if ((binc & mask)!=0) lutApt[1]=1;
150 bin = fAptMinu->GetBin(circuit,xstrip,idev);
151 binc = (Short_t)fAptMinu->GetBinContent(bin);
152 if ((binc & mask)!=0) lutApt[0]=1;
154 bin = fAptUnde->GetBin(circuit,xstrip,idev);
155 binc = (Short_t)fAptUnde->GetBinContent(bin);
156 if ((binc & mask)!=0) lutApt[0]=lutApt[1]=1;
160 //----------------------------------------------------------------------
161 Int_t AliMUONTriggerLut::GetMask(Int_t ystrip)
163 /// Return the mask corresponding to ystrip
165 Int_t tabMask[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
168 for (Int_t i=0; i<16; i++)
170 mask += tabMask[i]<<i;