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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. | |
5f1df83a | 26 | // Included in AliRoot 2003/01/28 |
ba030c0e | 27 | |
28 | #include <fstream> | |
3c25381f | 29 | |
ba030c0e | 30 | #include <TRandom.h> |
3c25381f | 31 | #include <TString.h> |
32 | ||
ba030c0e | 33 | #include "AliMUONSt1ResponseParameter.h" |
34 | ||
35 | ClassImp(AliMUONSt1ResponseParameter); | |
36 | ||
37 | //_________________________________________________________________________ | |
38 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter() | |
39 | :TNamed() | |
40 | { | |
41 | // default constructor | |
42 | fPedestalMode = kNone; | |
43 | fNoiseMode = kNone; | |
44 | fState=1; | |
45 | fNofSigma=3; | |
46 | fStickyOn=fStickyOff=0; | |
47 | } | |
48 | ||
49 | //_________________________________________________________________________ | |
50 | AliMUONSt1ResponseParameter::AliMUONSt1ResponseParameter(const TString& name,const TString& title) | |
51 | :TNamed(name,title) | |
52 | { | |
53 | // normal constructor | |
54 | fPedestalMode = kNone; | |
55 | fNoiseMode = kNone; | |
56 | fState=1; | |
57 | fNofSigma=3; | |
58 | fStickyOn=fStickyOff=0; | |
59 | } | |
60 | ||
61 | //_________________________________________________________________________ | |
62 | AliMUONSt1ResponseParameter::~AliMUONSt1ResponseParameter() | |
63 | { | |
64 | // destructor | |
65 | } | |
66 | ||
67 | //_________________________________________________________________________ | |
68 | void AliMUONSt1ResponseParameter::SetState(Bool_t state) | |
69 | { | |
70 | // If set to off, no information will be available from the electronics | |
71 | // --- | |
72 | ||
73 | fState=state; | |
74 | } | |
75 | ||
76 | //_________________________________________________________________________ | |
77 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t val) | |
78 | { | |
79 | // Set pedestal values to a constant | |
80 | // --- | |
81 | ||
82 | fPedestalMode = kValue; | |
83 | fPedestalParam.value = val; | |
84 | } | |
85 | ||
86 | //_________________________________________________________________________ | |
87 | void AliMUONSt1ResponseParameter::SetPedestal(Double_t mean,Double_t sigma) | |
88 | { | |
89 | // Set pedestal values to a parameterized gaussian | |
90 | // --- | |
91 | ||
92 | fPedestalMode = kGauss; | |
93 | fPedestalParam.gauss.mean = mean; | |
94 | fPedestalParam.gauss.sigma = sigma; | |
95 | } | |
96 | //_________________________________________________________________________ | |
97 | void AliMUONSt1ResponseParameter::SetPedestal(const TString& fileName) | |
98 | { | |
99 | // Set pedestal values to those given in a file | |
100 | // --- | |
101 | ||
102 | ifstream file(fileName.Data()); | |
103 | if (file.good()){ | |
104 | fPedestalMode = kFile; | |
105 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
106 | Float_t value; | |
107 | file>>value; | |
108 | fPedestalParam.values[ch] = value; | |
109 | //cout<<"Pedestal["<<i<<"]["<<ch<<"]="<<value<<endl; | |
110 | } | |
111 | file.close(); | |
112 | } else { | |
113 | Warning("SetPedestal",Form("Can't read file %s",fileName.Data())); | |
114 | SetPedestal(150.,10.); | |
115 | } | |
116 | } | |
117 | ||
118 | //_________________________________________________________________________ | |
119 | void AliMUONSt1ResponseParameter::UnSetPedestal() | |
120 | { | |
121 | // Set pedestal values to 0. | |
122 | // --- | |
123 | ||
124 | fPedestalMode=kNone; | |
125 | } | |
126 | ||
127 | //_________________________________________________________________________ | |
128 | void AliMUONSt1ResponseParameter::SetNoise(Double_t val) | |
129 | { | |
130 | // Set Noise values to a constant value | |
131 | // --- | |
132 | ||
133 | fNoiseMode = kValue; | |
134 | fNoiseParam.value = val; | |
135 | } | |
136 | ||
137 | //_________________________________________________________________________ | |
138 | void AliMUONSt1ResponseParameter::SetNoise(Double_t mean,Double_t sigma) | |
139 | { | |
140 | // Set Noise values to a parameterized gaussian | |
141 | // --- | |
142 | ||
143 | fNoiseMode = kGauss; | |
144 | fNoiseParam.gauss.mean = mean; | |
145 | fNoiseParam.gauss.sigma = sigma; | |
146 | } | |
147 | ||
148 | //_________________________________________________________________________ | |
149 | void AliMUONSt1ResponseParameter::SetNoise(const TString& fileName) | |
150 | { | |
151 | // Set Noise values to those given in a file | |
152 | // --- | |
153 | ||
154 | ifstream file(fileName.Data()); | |
155 | if (file.good()){ | |
156 | fNoiseMode = kFile; | |
157 | for (Int_t ch=0;ch<fgkNofChannels;ch++) { | |
158 | Float_t value; | |
159 | file>>value; | |
160 | fNoiseParam.values[ch] = value; | |
161 | //cout<<"Noise["<<i<<"]["<<ch<<"]="<<value<<endl; | |
162 | } | |
163 | file.close(); | |
164 | } else { | |
165 | Warning("SetNoise",Form("Can't read file %s",fileName.Data())); | |
166 | SetNoise(150.,10.); | |
167 | } | |
168 | } | |
169 | ||
170 | //_________________________________________________________________________ | |
171 | void AliMUONSt1ResponseParameter::SetNofSigma(Int_t nofSigma) | |
172 | { | |
173 | // set Number of sigmas to be applied as threshold (for zero suppression) | |
174 | // --- | |
175 | ||
176 | fNofSigma = nofSigma; | |
177 | } | |
178 | ||
179 | //_________________________________________________________________________ | |
180 | void AliMUONSt1ResponseParameter::SetStickyBitOn (Int_t bit,Int_t val) | |
181 | { | |
182 | // In the response, this bit will always be set to 1 (unless <State> is off) | |
183 | // --- | |
184 | ||
185 | if (val) | |
186 | fStickyOn |= (1<<bit); | |
187 | else | |
188 | fStickyOn &= ~(1<<bit); | |
189 | } | |
190 | ||
191 | //_________________________________________________________________________ | |
192 | void AliMUONSt1ResponseParameter::SetStickyBitOff(Int_t bit,Int_t val) | |
193 | { | |
194 | // In the response, this bit will always be set to 0 | |
195 | // --- | |
196 | ||
197 | if (val) | |
198 | fStickyOff |= (1<<bit); | |
199 | else | |
200 | fStickyOff &= ~(1<<bit); | |
201 | } | |
202 | ||
203 | //_________________________________________________________________________ | |
204 | Int_t AliMUONSt1ResponseParameter::ApplyPedestal(Int_t base,Int_t GC) const | |
205 | { | |
206 | // calculate the response to <base>, with respect to the current pedestal | |
207 | // parameters | |
208 | // -- | |
209 | Double_t ped = Choose(fPedestalMode,fPedestalParam,GC); | |
210 | Double_t nse = Choose(fNoiseMode,fNoiseParam,GC); | |
211 | Double_t noise = gRandom->Gaus(0, nse); | |
212 | base+=(Int_t)(noise + ped); | |
213 | if (base-ped-noise*fNofSigma<0) base=0; | |
214 | ||
215 | return base; | |
216 | } | |
217 | //_________________________________________________________________________ | |
218 | Int_t AliMUONSt1ResponseParameter::ApplyStickyBits(Int_t base) const | |
219 | { | |
220 | // set the response to <base>, with respect to the current stickyBits | |
221 | // parameters | |
222 | // -- | |
223 | base |= fStickyOn; | |
224 | base &= (~fStickyOff); | |
225 | return base; | |
226 | } | |
227 | //////////////////// Privates methods | |
228 | //_________________________________________________________________________ | |
229 | ||
230 | Double_t AliMUONSt1ResponseParameter::Choose(TMode mode,TParam param,Int_t GC) const | |
231 | { | |
232 | // Choose a (pedestal/noise) value to be applied following the parameterization rule | |
233 | // --- | |
234 | ||
235 | switch (mode){ | |
236 | case kNone : return 0; | |
237 | case kValue : return param.value; | |
238 | case kGauss : return gRandom->Gaus(param.gauss.mean,param.gauss.sigma); | |
239 | case kFile : return param.values[GC]; | |
240 | } | |
241 | Fatal("Choose","No mode is given"); | |
242 | return 0; | |
243 | } |