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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 | ||
88cb7938 | 16 | /* $Id$ */ |
ba030c0e | 17 | |
18 | // Authors: David Guez, Ivana Hrivnacova, Marion MacCormick; IPN Orsay | |
19 | // | |
20 | // Class AliMUONSt1ResponseParameter | |
21 | // --------------------------------- | |
22 | // Describes a set of filters to be applied to a digital value | |
23 | // in order to simulate electronics characteristics | |
24 | // (pedestal, noise, sticky bits, etc....) | |
25 | // Threshold levels for the MANU zero supression algorithm are included. | |
26 | ||
27 | #include <fstream> | |
3c25381f | 28 | |
ba030c0e | 29 | #include <TRandom.h> |
3c25381f | 30 | #include <TString.h> |
31 | ||
ba030c0e | 32 | #include "AliMUONSt1ResponseParameter.h" |
33 | ||
34 | ClassImp(AliMUONSt1ResponseParameter); | |
35 | ||
36 | //_________________________________________________________________________ | |
37 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter() | |
38 | :TNamed() | |
39 | { | |
40 | // default constructor | |
41 | fPedestalMode = kNone; | |
42 | fNoiseMode = kNone; | |
43 | fState=1; | |
44 | fNofSigma=3; | |
45 | fStickyOn=fStickyOff=0; | |
46 | } | |
47 | ||
48 | //_________________________________________________________________________ | |
49 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter(const TString& name,const TString& title) | |
50 | :TNamed(name,title) | |
51 | { | |
52 | // normal constructor | |
53 | fPedestalMode = kNone; | |
54 | fNoiseMode = kNone; | |
55 | fState=1; | |
56 | fNofSigma=3; | |
57 | fStickyOn=fStickyOff=0; | |
58 | } | |
59 | ||
60 | //_________________________________________________________________________ | |
61 | AliMUONSt1ResponseParameter::~AliMUONSt1ResponseParameter() | |
62 | { | |
63 | // destructor | |
64 | } | |
65 | ||
66 | //_________________________________________________________________________ | |
67 | void AliMUONSt1ResponseParameter::SetState(Bool_t state) | |
68 | { | |
69 | // If set to off, no information will be available from the electronics | |
70 | // --- | |
71 | ||
72 | fState=state; | |
73 | } | |
74 | ||
75 | //_________________________________________________________________________ | |
76 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t val) | |
77 | { | |
78 | // Set pedestal values to a constant | |
79 | // --- | |
80 | ||
81 | fPedestalMode = kValue; | |
82 | fPedestalParam.value = val; | |
83 | } | |
84 | ||
85 | //_________________________________________________________________________ | |
86 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t mean,Double_t sigma) | |
87 | { | |
88 | // Set pedestal values to a parameterized gaussian | |
89 | // --- | |
90 | ||
91 | fPedestalMode = kGauss; | |
92 | fPedestalParam.gauss.mean = mean; | |
93 | fPedestalParam.gauss.sigma = sigma; | |
94 | } | |
95 | //_________________________________________________________________________ | |
96 | void AliMUONSt1ResponseParameter::SetPedestal(const TString& fileName) | |
97 | { | |
98 | // Set pedestal values to those given in a file | |
99 | // --- | |
100 | ||
101 | ifstream file(fileName.Data()); | |
102 | if (file.good()){ | |
103 | fPedestalMode = kFile; | |
104 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
105 | Float_t value; | |
106 | file>>value; | |
107 | fPedestalParam.values[ch] = value; | |
108 | //cout<<"Pedestal["<<i<<"]["<<ch<<"]="<<value<<endl; | |
109 | } | |
110 | file.close(); | |
111 | } else { | |
112 | Warning("SetPedestal",Form("Can't read file %s",fileName.Data())); | |
113 | SetPedestal(150.,10.); | |
114 | } | |
115 | } | |
116 | ||
117 | //_________________________________________________________________________ | |
118 | void AliMUONSt1ResponseParameter::UnSetPedestal() | |
119 | { | |
120 | // Set pedestal values to 0. | |
121 | // --- | |
122 | ||
123 | fPedestalMode=kNone; | |
124 | } | |
125 | ||
126 | //_________________________________________________________________________ | |
127 | void AliMUONSt1ResponseParameter::SetNoise(Double_t val) | |
128 | { | |
129 | // Set Noise values to a constant value | |
130 | // --- | |
131 | ||
132 | fNoiseMode = kValue; | |
133 | fNoiseParam.value = val; | |
134 | } | |
135 | ||
136 | //_________________________________________________________________________ | |
137 | void AliMUONSt1ResponseParameter::SetNoise(Double_t mean,Double_t sigma) | |
138 | { | |
139 | // Set Noise values to a parameterized gaussian | |
140 | // --- | |
141 | ||
142 | fNoiseMode = kGauss; | |
143 | fNoiseParam.gauss.mean = mean; | |
144 | fNoiseParam.gauss.sigma = sigma; | |
145 | } | |
146 | ||
147 | //_________________________________________________________________________ | |
148 | void AliMUONSt1ResponseParameter::SetNoise(const TString& fileName) | |
149 | { | |
150 | // Set Noise values to those given in a file | |
151 | // --- | |
152 | ||
153 | ifstream file(fileName.Data()); | |
154 | if (file.good()){ | |
155 | fNoiseMode = kFile; | |
156 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
157 | Float_t value; | |
158 | file>>value; | |
159 | fNoiseParam.values[ch] = value; | |
160 | //cout<<"Noise["<<i<<"]["<<ch<<"]="<<value<<endl; | |
161 | } | |
162 | file.close(); | |
163 | } else { | |
164 | Warning("SetNoise",Form("Can't read file %s",fileName.Data())); | |
165 | SetNoise(150.,10.); | |
166 | } | |
167 | } | |
168 | ||
169 | //_________________________________________________________________________ | |
170 | void AliMUONSt1ResponseParameter::SetNofSigma(Int_t nofSigma) | |
171 | { | |
172 | // set Number of sigmas to be applied as threshold (for zero suppression) | |
173 | // --- | |
174 | ||
175 | fNofSigma = nofSigma; | |
176 | } | |
177 | ||
178 | //_________________________________________________________________________ | |
179 | void AliMUONSt1ResponseParameter::SetStickyBitOn (Int_t bit,Int_t val) | |
180 | { | |
181 | // In the response, this bit will always be set to 1 (unless <State> is off) | |
182 | // --- | |
183 | ||
184 | if (val) | |
185 | fStickyOn |= (1<<bit); | |
186 | else | |
187 | fStickyOn &= ~(1<<bit); | |
188 | } | |
189 | ||
190 | //_________________________________________________________________________ | |
191 | void AliMUONSt1ResponseParameter::SetStickyBitOff(Int_t bit,Int_t val) | |
192 | { | |
193 | // In the response, this bit will always be set to 0 | |
194 | // --- | |
195 | ||
196 | if (val) | |
197 | fStickyOff |= (1<<bit); | |
198 | else | |
199 | fStickyOff &= ~(1<<bit); | |
200 | } | |
201 | ||
202 | //_________________________________________________________________________ | |
203 | Int_t AliMUONSt1ResponseParameter::ApplyPedestal(Int_t base,Int_t GC) const | |
204 | { | |
205 | // calculate the response to <base>, with respect to the current pedestal | |
206 | // parameters | |
207 | // -- | |
208 | Double_t ped = Choose(fPedestalMode,fPedestalParam,GC); | |
209 | Double_t nse = Choose(fNoiseMode,fNoiseParam,GC); | |
210 | Double_t noise = gRandom->Gaus(0, nse); | |
211 | base+=(Int_t)(noise + ped); | |
212 | if (base-ped-noise*fNofSigma<0) base=0; | |
213 | ||
214 | return base; | |
215 | } | |
216 | //_________________________________________________________________________ | |
217 | Int_t AliMUONSt1ResponseParameter::ApplyStickyBits(Int_t base) const | |
218 | { | |
219 | // set the response to <base>, with respect to the current stickyBits | |
220 | // parameters | |
221 | // -- | |
222 | base |= fStickyOn; | |
223 | base &= (~fStickyOff); | |
224 | return base; | |
225 | } | |
226 | //////////////////// Privates methods | |
227 | //_________________________________________________________________________ | |
228 | ||
229 | Double_t AliMUONSt1ResponseParameter::Choose(TMode mode,TParam param,Int_t GC) const | |
230 | { | |
231 | // Choose a (pedestal/noise) value to be applied following the parameterization rule | |
232 | // --- | |
233 | ||
234 | switch (mode){ | |
235 | case kNone : return 0; | |
236 | case kValue : return param.value; | |
237 | case kGauss : return gRandom->Gaus(param.gauss.mean,param.gauss.sigma); | |
238 | case kFile : return param.values[GC]; | |
239 | } | |
240 | Fatal("Choose","No mode is given"); | |
241 | return 0; | |
242 | } |