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ba030c0e | 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 | /* | |
17 | $Log$ | |
18 | */ | |
19 | ||
20 | // Authors: David Guez, Ivana Hrivnacova, Marion MacCormick; IPN Orsay | |
21 | // | |
22 | // Class AliMUONSt1ResponseParameter | |
23 | // --------------------------------- | |
24 | // Describes a set of filters to be applied to a digital value | |
25 | // in order to simulate electronics characteristics | |
26 | // (pedestal, noise, sticky bits, etc....) | |
27 | // Threshold levels for the MANU zero supression algorithm are included. | |
28 | ||
29 | #include <fstream> | |
30 | #include <TRandom.h> | |
31 | #include "AliMUONSt1ResponseParameter.h" | |
32 | ||
33 | ClassImp(AliMUONSt1ResponseParameter); | |
34 | ||
35 | //_________________________________________________________________________ | |
36 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter() | |
37 | :TNamed() | |
38 | { | |
39 | // default constructor | |
40 | fPedestalMode = kNone; | |
41 | fNoiseMode = kNone; | |
42 | fState=1; | |
43 | fNofSigma=3; | |
44 | fStickyOn=fStickyOff=0; | |
45 | } | |
46 | ||
47 | //_________________________________________________________________________ | |
48 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter(const TString& name,const TString& title) | |
49 | :TNamed(name,title) | |
50 | { | |
51 | // normal constructor | |
52 | fPedestalMode = kNone; | |
53 | fNoiseMode = kNone; | |
54 | fState=1; | |
55 | fNofSigma=3; | |
56 | fStickyOn=fStickyOff=0; | |
57 | } | |
58 | ||
59 | //_________________________________________________________________________ | |
60 | AliMUONSt1ResponseParameter::~AliMUONSt1ResponseParameter() | |
61 | { | |
62 | // destructor | |
63 | } | |
64 | ||
65 | //_________________________________________________________________________ | |
66 | void AliMUONSt1ResponseParameter::SetState(Bool_t state) | |
67 | { | |
68 | // If set to off, no information will be available from the electronics | |
69 | // --- | |
70 | ||
71 | fState=state; | |
72 | } | |
73 | ||
74 | //_________________________________________________________________________ | |
75 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t val) | |
76 | { | |
77 | // Set pedestal values to a constant | |
78 | // --- | |
79 | ||
80 | fPedestalMode = kValue; | |
81 | fPedestalParam.value = val; | |
82 | } | |
83 | ||
84 | //_________________________________________________________________________ | |
85 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t mean,Double_t sigma) | |
86 | { | |
87 | // Set pedestal values to a parameterized gaussian | |
88 | // --- | |
89 | ||
90 | fPedestalMode = kGauss; | |
91 | fPedestalParam.gauss.mean = mean; | |
92 | fPedestalParam.gauss.sigma = sigma; | |
93 | } | |
94 | //_________________________________________________________________________ | |
95 | void AliMUONSt1ResponseParameter::SetPedestal(const TString& fileName) | |
96 | { | |
97 | // Set pedestal values to those given in a file | |
98 | // --- | |
99 | ||
100 | ifstream file(fileName.Data()); | |
101 | if (file.good()){ | |
102 | fPedestalMode = kFile; | |
103 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
104 | Float_t value; | |
105 | file>>value; | |
106 | fPedestalParam.values[ch] = value; | |
107 | //cout<<"Pedestal["<<i<<"]["<<ch<<"]="<<value<<endl; | |
108 | } | |
109 | file.close(); | |
110 | } else { | |
111 | Warning("SetPedestal",Form("Can't read file %s",fileName.Data())); | |
112 | SetPedestal(150.,10.); | |
113 | } | |
114 | } | |
115 | ||
116 | //_________________________________________________________________________ | |
117 | void AliMUONSt1ResponseParameter::UnSetPedestal() | |
118 | { | |
119 | // Set pedestal values to 0. | |
120 | // --- | |
121 | ||
122 | fPedestalMode=kNone; | |
123 | } | |
124 | ||
125 | //_________________________________________________________________________ | |
126 | void AliMUONSt1ResponseParameter::SetNoise(Double_t val) | |
127 | { | |
128 | // Set Noise values to a constant value | |
129 | // --- | |
130 | ||
131 | fNoiseMode = kValue; | |
132 | fNoiseParam.value = val; | |
133 | } | |
134 | ||
135 | //_________________________________________________________________________ | |
136 | void AliMUONSt1ResponseParameter::SetNoise(Double_t mean,Double_t sigma) | |
137 | { | |
138 | // Set Noise values to a parameterized gaussian | |
139 | // --- | |
140 | ||
141 | fNoiseMode = kGauss; | |
142 | fNoiseParam.gauss.mean = mean; | |
143 | fNoiseParam.gauss.sigma = sigma; | |
144 | } | |
145 | ||
146 | //_________________________________________________________________________ | |
147 | void AliMUONSt1ResponseParameter::SetNoise(const TString& fileName) | |
148 | { | |
149 | // Set Noise values to those given in a file | |
150 | // --- | |
151 | ||
152 | ifstream file(fileName.Data()); | |
153 | if (file.good()){ | |
154 | fNoiseMode = kFile; | |
155 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
156 | Float_t value; | |
157 | file>>value; | |
158 | fNoiseParam.values[ch] = value; | |
159 | //cout<<"Noise["<<i<<"]["<<ch<<"]="<<value<<endl; | |
160 | } | |
161 | file.close(); | |
162 | } else { | |
163 | Warning("SetNoise",Form("Can't read file %s",fileName.Data())); | |
164 | SetNoise(150.,10.); | |
165 | } | |
166 | } | |
167 | ||
168 | //_________________________________________________________________________ | |
169 | void AliMUONSt1ResponseParameter::SetNofSigma(Int_t nofSigma) | |
170 | { | |
171 | // set Number of sigmas to be applied as threshold (for zero suppression) | |
172 | // --- | |
173 | ||
174 | fNofSigma = nofSigma; | |
175 | } | |
176 | ||
177 | //_________________________________________________________________________ | |
178 | void AliMUONSt1ResponseParameter::SetStickyBitOn (Int_t bit,Int_t val) | |
179 | { | |
180 | // In the response, this bit will always be set to 1 (unless <State> is off) | |
181 | // --- | |
182 | ||
183 | if (val) | |
184 | fStickyOn |= (1<<bit); | |
185 | else | |
186 | fStickyOn &= ~(1<<bit); | |
187 | } | |
188 | ||
189 | //_________________________________________________________________________ | |
190 | void AliMUONSt1ResponseParameter::SetStickyBitOff(Int_t bit,Int_t val) | |
191 | { | |
192 | // In the response, this bit will always be set to 0 | |
193 | // --- | |
194 | ||
195 | if (val) | |
196 | fStickyOff |= (1<<bit); | |
197 | else | |
198 | fStickyOff &= ~(1<<bit); | |
199 | } | |
200 | ||
201 | //_________________________________________________________________________ | |
202 | Int_t AliMUONSt1ResponseParameter::ApplyPedestal(Int_t base,Int_t GC) const | |
203 | { | |
204 | // calculate the response to <base>, with respect to the current pedestal | |
205 | // parameters | |
206 | // -- | |
207 | Double_t ped = Choose(fPedestalMode,fPedestalParam,GC); | |
208 | Double_t nse = Choose(fNoiseMode,fNoiseParam,GC); | |
209 | Double_t noise = gRandom->Gaus(0, nse); | |
210 | base+=(Int_t)(noise + ped); | |
211 | if (base-ped-noise*fNofSigma<0) base=0; | |
212 | ||
213 | return base; | |
214 | } | |
215 | //_________________________________________________________________________ | |
216 | Int_t AliMUONSt1ResponseParameter::ApplyStickyBits(Int_t base) const | |
217 | { | |
218 | // set the response to <base>, with respect to the current stickyBits | |
219 | // parameters | |
220 | // -- | |
221 | base |= fStickyOn; | |
222 | base &= (~fStickyOff); | |
223 | return base; | |
224 | } | |
225 | //////////////////// Privates methods | |
226 | //_________________________________________________________________________ | |
227 | ||
228 | Double_t AliMUONSt1ResponseParameter::Choose(TMode mode,TParam param,Int_t GC) const | |
229 | { | |
230 | // Choose a (pedestal/noise) value to be applied following the parameterization rule | |
231 | // --- | |
232 | ||
233 | switch (mode){ | |
234 | case kNone : return 0; | |
235 | case kValue : return param.value; | |
236 | case kGauss : return gRandom->Gaus(param.gauss.mean,param.gauss.sigma); | |
237 | case kFile : return param.values[GC]; | |
238 | } | |
239 | Fatal("Choose","No mode is given"); | |
240 | return 0; | |
241 | } |