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a9e2aefa | 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 | /* $Id$ */ |
a9e2aefa | 17 | |
18 | #include "AliMUONSegmentationTrigger.h" | |
0c19630f | 19 | #include "AliMUONTriggerConstants.h" |
d81db581 | 20 | #include "AliRun.h" |
21 | #include "AliMUON.h" | |
a9e2aefa | 22 | #include <TMath.h> |
23 | #include <TRandom.h> | |
24 | #include <TArc.h> | |
25 | #include "AliMUONChamber.h" | |
70479d0e | 26 | #include <Riostream.h> |
5fd73042 | 27 | |
a9e2aefa | 28 | ClassImp(AliMUONSegmentationTrigger) |
29 | ||
0c19630f | 30 | //------------------------------------------------------------------ |
d81db581 | 31 | void AliMUONSegmentationTrigger::Init(Int_t chamber) |
a9e2aefa | 32 | { |
33 | // initialize Module geometry | |
d81db581 | 34 | AliMUON *pMUON = (AliMUON *) gAlice->GetModule("MUON"); |
35 | AliMUONChamber* iChamber=&(pMUON->Chamber(chamber)); | |
36 | ||
ef077202 | 37 | if(pMUON->GetDebug()>1) printf("%s: Initialize Trigger Chamber Module Geometry\n",ClassName()); |
9e1a0ddb | 38 | |
d81db581 | 39 | Float_t zPos=iChamber->Z(); |
deea6fd8 | 40 | Float_t z1Pos=-1603.5; |
a9e2aefa | 41 | fZscale = zPos/z1Pos; |
42 | ||
a9e2aefa | 43 | Float_t y1Cmin[126]; |
44 | Float_t y1Cmax[126]; | |
45 | ||
46 | Float_t dz=7.2; | |
deea6fd8 | 47 | // Float_t z1PosPlus=z1Pos+dz/2.; |
48 | // Float_t z1PosMinus=z1Pos-dz/2.; | |
49 | Float_t z1PosPlus=z1Pos-dz/2.; | |
50 | Float_t z1PosMinus=z1Pos+dz/2.; | |
a9e2aefa | 51 | |
52 | Float_t z1pm=z1PosPlus/z1PosMinus; | |
53 | Float_t z1mp=z1PosMinus/z1PosPlus; | |
54 | ||
ef077202 | 55 | if(pMUON->GetDebug()>1) printf("%s: fZscale = %f \n",ClassName(),fZscale); |
0c19630f | 56 | |
57 | // calculate yCmin and fYcmax | |
58 | Int_t i; | |
59 | for (i=62; i>=0; i--) { | |
60 | Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left | |
61 | if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==5) { // start with middle chamber | |
62 | if (AliMUONTriggerConstants::ModuleId(i)==51) { // special case (empty module) | |
63 | fYcmin[i]=fYcmax[i]=fYcmin[j]=fYcmax[j]=0.; | |
a9e2aefa | 64 | } else { |
65 | y1Cmin[i]=y1Cmin[j]=-34; | |
66 | y1Cmax[i]=y1Cmax[j]=34; | |
0c19630f | 67 | fYcmin[i]=fYcmin[j]=-34.; |
68 | ||
69 | fYcmax[i]=fYcmax[j]=34.; | |
a9e2aefa | 70 | } |
0c19630f | 71 | } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==4) { // up |
72 | if (AliMUONTriggerConstants::ModuleId(i)!=41) { | |
a9e2aefa | 73 | y1Cmin[i]=y1Cmax[i+7]*z1pm; |
74 | y1Cmax[i]=y1Cmin[i]+68.; | |
0c19630f | 75 | fYcmin[i]=y1Cmin[i]; |
76 | fYcmax[i]=fYcmin[i]+68.; | |
a9e2aefa | 77 | |
78 | y1Cmin[j]=y1Cmax[j+7]*z1mp; | |
79 | y1Cmax[j]=y1Cmin[j]+68.; | |
0c19630f | 80 | fYcmin[j]=y1Cmin[j]; |
81 | fYcmax[j]=fYcmin[j]+68.; | |
a9e2aefa | 82 | } else { |
83 | y1Cmin[i]=y1Cmin[ModuleNumber(42)]+17; | |
84 | y1Cmax[i]=y1Cmin[i]+51.; | |
0c19630f | 85 | fYcmin[i]=y1Cmin[i]; |
86 | fYcmax[i]=fYcmin[i]+51.; | |
a9e2aefa | 87 | |
88 | y1Cmin[j]=y1Cmin[ModuleNumber(-42)]+17; | |
89 | y1Cmax[j]=y1Cmin[j]+51.; | |
0c19630f | 90 | fYcmin[j]=y1Cmin[j]; |
91 | fYcmax[j]=fYcmin[j]+51.; | |
a9e2aefa | 92 | } |
0c19630f | 93 | } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==3) { |
a9e2aefa | 94 | y1Cmin[i]=y1Cmax[i+7]*z1mp; |
95 | y1Cmax[i]=y1Cmin[i]+68.; | |
0c19630f | 96 | fYcmin[i]=y1Cmin[i]; |
97 | fYcmax[i]=fYcmin[i]+68.; | |
a9e2aefa | 98 | |
99 | y1Cmin[j]=y1Cmax[j+7]*z1pm; | |
100 | y1Cmax[j]=y1Cmin[j]+68.; | |
0c19630f | 101 | fYcmin[j]=y1Cmin[j]; |
102 | fYcmax[j]=fYcmin[j]+68.; | |
103 | } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==2) { | |
a9e2aefa | 104 | y1Cmin[i]=y1Cmax[i+7]*z1pm; |
105 | y1Cmax[i]=y1Cmin[i]+68.; | |
0c19630f | 106 | fYcmin[i]=y1Cmin[i]; |
107 | fYcmax[i]=fYcmin[i]+68.; | |
a9e2aefa | 108 | |
109 | y1Cmin[j]=y1Cmax[j+7]*z1mp; | |
110 | y1Cmax[j]=y1Cmin[j]+68.; | |
0c19630f | 111 | fYcmin[j]=y1Cmin[j]; |
112 | fYcmax[j]=fYcmin[j]+68.; | |
113 | } else if (Int_t(AliMUONTriggerConstants::ModuleId(i)/10)==1) { | |
a9e2aefa | 114 | y1Cmin[i]=y1Cmax[i+7]*z1mp; |
115 | y1Cmax[i]=y1Cmin[i]+68.; | |
0c19630f | 116 | fYcmin[i]=y1Cmin[i]; |
117 | fYcmax[i]=fYcmin[i]+68.; | |
a9e2aefa | 118 | |
119 | y1Cmin[j]=y1Cmax[j+7]*z1pm; | |
120 | y1Cmax[j]=y1Cmin[j]+68.; | |
0c19630f | 121 | fYcmin[j]=y1Cmin[j]; |
122 | fYcmax[j]=fYcmin[j]+68.; | |
a9e2aefa | 123 | } |
124 | } | |
125 | ||
0c19630f | 126 | for (i=0; i<63; i++) { // second loop (fill lower part) |
127 | Int_t j=ModuleNumber(-AliMUONTriggerConstants::ModuleId(i)); // i == right, j == left | |
128 | if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==6) { | |
129 | fYcmin[i]=-fYcmax[i-14]; | |
130 | fYcmax[i]=-fYcmin[i-14]; | |
131 | fYcmin[j]=-fYcmax[j-14]; | |
132 | fYcmax[j]=-fYcmin[j-14]; | |
133 | } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==7) { | |
134 | fYcmin[i]=-fYcmax[i-28]; | |
135 | fYcmax[i]=-fYcmin[i-28]; | |
136 | fYcmin[j]=-fYcmax[j-28]; | |
137 | fYcmax[j]=-fYcmin[j-28]; | |
138 | } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==8) { | |
139 | fYcmin[i]=-fYcmax[i-42]; | |
140 | fYcmax[i]=-fYcmin[i-42]; | |
141 | fYcmin[j]=-fYcmax[j-42]; | |
142 | fYcmax[j]=-fYcmin[j-42]; | |
143 | } else if (TMath::Abs(Int_t(AliMUONTriggerConstants::ModuleId(i)/10))==9) { | |
144 | fYcmin[i]=-fYcmax[i-56]; | |
145 | fYcmax[i]=-fYcmin[i-56]; | |
146 | fYcmin[j]=-fYcmax[j-56]; | |
147 | fYcmax[j]=-fYcmin[j-56]; | |
a9e2aefa | 148 | } |
149 | } | |
150 | ||
a9e2aefa | 151 | fNpx=124; |
152 | fNpy=64; | |
153 | ||
5fd73042 | 154 | // Set parent chamber number |
155 | fChamber=&(pMUON->Chamber(chamber)); | |
156 | fId=chamber; | |
157 | ||
a9e2aefa | 158 | } |
e889a146 | 159 | //------------------------------------------------------------------ |
160 | void AliMUONSegmentationTrigger::Draw(const char * /*opt*/) const {} | |
a9e2aefa | 161 | //------------------------------------------------------------------ |
162 | Int_t AliMUONSegmentationTrigger::ModuleNumber(Int_t imodule){ | |
163 | // returns module number (from 0 to 126) corresponding to module imodule | |
164 | Int_t imod=0; | |
0c19630f | 165 | for (Int_t i=0; i<AliMUONTriggerConstants::Nmodule(); i++) { |
166 | if (AliMUONTriggerConstants::ModuleId(i)==imodule) { | |
a9e2aefa | 167 | imod=i; |
168 | break; | |
169 | } | |
170 | } | |
171 | return imod; | |
172 | } | |
e889a146 | 173 | //------------------------------------------------------------------ |
174 | void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit, Float_t /*zhit*/) | |
175 | { | |
176 | SetHit(xhit, yhit); | |
177 | } | |
a9e2aefa | 178 | //------------------------------------------------------------------ |
179 | Float_t AliMUONSegmentationTrigger::StripSizeX(Int_t imodule){ | |
180 | // Returns x-strip size for given module imodule | |
181 | ||
182 | Int_t absimodule=TMath::Abs(imodule); | |
183 | Int_t moduleNum=ModuleNumber(imodule); | |
0c19630f | 184 | if (absimodule==51) { |
a9e2aefa | 185 | return 0; |
186 | } else { | |
0c19630f | 187 | return TMath::Abs((fYcmax[moduleNum]-fYcmin[moduleNum])/ |
188 | AliMUONTriggerConstants::NstripX(moduleNum)); | |
189 | } | |
a9e2aefa | 190 | } |
191 | ||
192 | //------------------------------------------------------------------ | |
193 | Float_t AliMUONSegmentationTrigger::StripSizeY(Int_t imodule){ | |
194 | // Returns y-strip size for given module imodule | |
195 | ||
196 | Int_t absimodule=TMath::Abs(imodule); | |
197 | Int_t moduleNum=ModuleNumber(imodule); | |
0c19630f | 198 | if (absimodule==51) { |
a9e2aefa | 199 | return 0; |
200 | } else { | |
0c19630f | 201 | return TMath::Abs((AliMUONTriggerConstants::XcMax(moduleNum) - |
202 | AliMUONTriggerConstants::XcMin(moduleNum)) / | |
203 | AliMUONTriggerConstants::NstripY(moduleNum)); | |
a9e2aefa | 204 | } |
205 | } | |
206 | ||
207 | //------------------------------------------------------------------ | |
208 | void AliMUONSegmentationTrigger::SetHit(Float_t xhit, Float_t yhit) | |
209 | { | |
210 | // Sets virtual hit position, needed for evaluating pad response | |
211 | // outside the tracking program | |
212 | ||
ecfa008b | 213 | fXhit=xhit; |
214 | fYhit=yhit; | |
a9e2aefa | 215 | } |
0c19630f | 216 | |
217 | ||
218 | ||
219 | ||
220 | ||
221 | ||
222 | ||
223 | ||
224 |