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3e147bc8 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2004, 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 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Main class for TRD1 geometry of Shish-Kebab case. | |
20 | // Author: Aleksei Pavlinov(WSU). | |
21 | // Sep 20004 - Nov 2006 | |
22 | // See web page with description of Shish-Kebab geometries: | |
23 | // http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/shishkebabALICE.html | |
24 | // Nov 9,2006 - added cas of 3X3 | |
25 | //_________________________________________________________________________ | |
26 | ||
27 | // | |
28 | // Class modified and implemented in JETAN | |
29 | // | |
30 | // M. Estienne | |
31 | // | |
32 | ||
33 | #include "AliLog.h" | |
34 | #include "AliJetDummyShishKebabTrd1Module.h" | |
35 | #include "AliJetDummyGeo.h" | |
36 | ||
37 | #include <Riostream.h> | |
38 | ||
39 | ClassImp(AliJetDummyShishKebabTrd1Module) | |
40 | ||
41 | AliJetDummyGeo *AliJetDummyShishKebabTrd1Module::fgGeometry=0; | |
42 | Double_t AliJetDummyShishKebabTrd1Module::fga=0.; | |
43 | Double_t AliJetDummyShishKebabTrd1Module::fga2=0.; | |
44 | Double_t AliJetDummyShishKebabTrd1Module::fgb=0.; | |
45 | Double_t AliJetDummyShishKebabTrd1Module::fgr=0.; | |
46 | Double_t AliJetDummyShishKebabTrd1Module::fgangle=0.; // around one degree | |
47 | Double_t AliJetDummyShishKebabTrd1Module::fgtanBetta=0; // | |
48 | ||
49 | //_____________________________________________________________________________ | |
50 | AliJetDummyShishKebabTrd1Module::AliJetDummyShishKebabTrd1Module(Double_t theta, AliJetDummyGeo *g) | |
51 | : TNamed(), | |
52 | fOK(), | |
53 | fA(0.), | |
54 | fB(0.), | |
55 | fThetaA(0.), | |
56 | fTheta(theta), | |
57 | fOK1(), | |
58 | fOK2(), | |
59 | fOB(), | |
60 | fOB1(), | |
61 | fOB2(), | |
62 | fOK3X3(), | |
63 | fDebug(0) | |
64 | { | |
65 | // theta in radians ; first object shold be with theta=pi/2. | |
66 | if(fgGeometry==0) { | |
67 | fTheta = TMath::PiOver2(); | |
68 | fgGeometry = g; | |
69 | if(GetParameters()) { | |
70 | DefineFirstModule(); | |
71 | } | |
72 | } else Warning("AliJetDummyShishKebabTrd1Module(theta)","You should call this constractor just once !!"); | |
73 | DefineName(fTheta); | |
74 | AliInfo(Form("AliJetDummyShishKebabTrd1Module - first module: theta %1.4f geometry %s",fTheta,g->GetName())); | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | AliJetDummyShishKebabTrd1Module::AliJetDummyShishKebabTrd1Module(AliJetDummyShishKebabTrd1Module &leftNeighbor) | |
79 | : TNamed(), | |
80 | fOK(), | |
81 | fA(0.), | |
82 | fB(0.), | |
83 | fThetaA(0.), | |
84 | fTheta(0.), | |
85 | fOK1(), | |
86 | fOK2(), | |
87 | fOB(), | |
88 | fOB1(), | |
89 | fOB2(), | |
90 | fOK3X3(), | |
91 | fDebug(0) | |
92 | { | |
93 | // printf("** Left Neighbor : %s **\n", leftNeighbor.GetName()); | |
94 | fTheta = leftNeighbor.GetTheta() - fgangle; | |
95 | ||
96 | TObject::SetUniqueID(leftNeighbor.GetUniqueID()+1); | |
97 | ||
98 | Init(leftNeighbor.GetA(),leftNeighbor.GetB()); | |
99 | } | |
100 | ||
101 | //________________________________________________________________ | |
102 | AliJetDummyShishKebabTrd1Module::AliJetDummyShishKebabTrd1Module(const AliJetDummyShishKebabTrd1Module& mod) | |
103 | : TNamed(mod.GetName(),mod.GetTitle()), | |
104 | fOK(mod.fOK), | |
105 | fA(mod.fA), | |
106 | fB(mod.fB), | |
107 | fThetaA(mod.fThetaA), | |
108 | fTheta(mod.fTheta), | |
109 | fOK1(mod.fOK1), | |
110 | fOK2(mod.fOK2), | |
111 | fOB(mod.fOB), | |
112 | fOB1(mod.fOB1), | |
113 | fOB2(mod.fOB2) | |
114 | { | |
115 | //copy ctor | |
116 | for (Int_t i=0; i<3; i++) fOK3X3[i] = mod.fOK3X3[i]; | |
117 | } | |
118 | ||
119 | //________________________________________________________________ | |
120 | void AliJetDummyShishKebabTrd1Module::Init(Double_t A, Double_t B) | |
121 | { | |
122 | // Define parameter module from parameters A,B from previos. | |
123 | Double_t yl = (fgb/2)*TMath::Sin(fTheta) + (fga/2)*TMath::Cos(fTheta) + fgr, y = yl; | |
124 | Double_t xl = (yl - B) / A; // y=A*x+B | |
125 | ||
126 | if(fDebug>1){ | |
127 | Double_t xp1 = (fga/2. + fgb/2.*fgtanBetta)/(TMath::Sin(fTheta) + fgtanBetta*TMath::Cos(fTheta)); | |
128 | printf(" xp1 %9.3f \n ", xp1); | |
129 | } | |
130 | // xp1 == xp => both methods give the same results - 3-feb-05 | |
131 | Double_t alpha = TMath::Pi()/2. + fgangle/2; | |
132 | Double_t xt = (fga+fga2)*TMath::Tan(fTheta)*TMath::Tan(alpha)/(4.*(1.-TMath::Tan(fTheta)*TMath::Tan(alpha))); | |
133 | Double_t yt = xt / TMath::Tan(fTheta), xp = TMath::Sqrt(xt*xt + yt*yt); | |
134 | Double_t x = xl + xp; | |
135 | fOK.Set(x, y); | |
136 | if(fDebug>1) printf(" yl %9.3f | xl %9.3f | xp %9.3f \n", yl, xl, xp); | |
137 | ||
138 | // have to define A and B; | |
139 | Double_t yCprev = fgr + fga*TMath::Cos(fTheta); | |
140 | Double_t xCprev = (yCprev - B) / A; | |
141 | Double_t xA = xCprev + fga*TMath::Sin(fTheta), yA = fgr; | |
142 | ||
143 | fThetaA = fTheta - fgangle/2.; | |
144 | fA = TMath::Tan(fThetaA); // !! | |
145 | fB = yA - fA*xA; | |
146 | ||
147 | DefineAllStaff(); | |
148 | } | |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | void AliJetDummyShishKebabTrd1Module::DefineAllStaff() | |
152 | { | |
153 | DefineName(fTheta); | |
154 | // Centers of module - 2X2 case | |
155 | Double_t kk1 = (fga+fga2)/(2.*4.); // kk1=kk2 | |
156 | ||
157 | Double_t xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
158 | Double_t yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; | |
159 | fOK1.Set(xk1,yk1); | |
160 | ||
161 | Double_t xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
162 | Double_t yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; | |
163 | fOK2.Set(xk2,yk2); | |
164 | ||
165 | // Centers of module - 3X3 case; Nov 9,2006 | |
166 | fOK3X3[1].Set(fOK.X(), fOK.Y()-fgr); // coincide with module center | |
167 | ||
168 | kk1 = ((fga+fga2)/4. + fga/6.)/2.; | |
169 | ||
170 | xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
171 | yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; | |
172 | fOK3X3[0].Set(xk1,yk1); | |
173 | ||
174 | xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
175 | yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; | |
176 | fOK3X3[2].Set(xk2,yk2); | |
177 | ||
178 | // May 15, 2006; position of cell face of cells | |
179 | fOB.Set(fOK.X()-fgb/2.*TMath::Cos(fTheta), fOK.Y()-fgb/2.*TMath::Sin(fTheta)-fgr); | |
180 | fOB1.Set(fOB.X()-fga/4.*TMath::Sin(fTheta), fOB.Y()+fga/4.*TMath::Cos(fTheta)); | |
181 | fOB2.Set(fOB.X()+fga/4.*TMath::Sin(fTheta), fOB.Y()-fga/4.*TMath::Cos(fTheta)); | |
182 | ||
183 | } | |
184 | ||
185 | //_____________________________________________________________________________ | |
186 | void AliJetDummyShishKebabTrd1Module::DefineFirstModule() | |
187 | { | |
188 | // Define first module | |
189 | fOK.Set(fga2/2., fgr + fgb/2.); // position the center of module vs o | |
190 | ||
191 | // parameters of right line : y = A*z + B in system where zero point is IP. | |
192 | fThetaA = fTheta - fgangle/2.; | |
193 | fA = TMath::Tan(fThetaA); | |
194 | Double_t xA = fga/2. + fga2/2., yA = fgr; | |
195 | fB = yA - fA*xA; | |
196 | ||
197 | TObject::SetUniqueID(1); // | |
198 | ||
199 | DefineAllStaff(); | |
200 | } | |
201 | ||
202 | //_____________________________________________________________________________ | |
203 | void AliJetDummyShishKebabTrd1Module::DefineName(Double_t theta) | |
204 | { | |
205 | // Define name of object | |
206 | SetName(Form("%2i(%5.2f)", TObject::GetUniqueID(), theta*TMath::RadToDeg())); | |
207 | } | |
208 | ||
209 | //_____________________________________________________________________________ | |
210 | Bool_t AliJetDummyShishKebabTrd1Module::GetParameters() | |
211 | { | |
212 | // Get needing module parameters from EMCAL geometry | |
213 | if(!fgGeometry) fgGeometry = AliJetDummyGeo::GetInstance(); | |
214 | TString sn(fgGeometry->GetName()); // 2-Feb-05 | |
215 | sn.ToUpper(); | |
216 | if(!fgGeometry) { | |
217 | Warning("GetParameters()"," No geometry "); | |
218 | return kFALSE; | |
219 | } | |
220 | ||
221 | fga = (Double_t)fgGeometry->GetEtaModuleSize(); | |
222 | fgb = (Double_t)fgGeometry->GetLongModuleSize(); | |
223 | fgangle = Double_t(fgGeometry->GetTrd1Angle())*TMath::DegToRad(); | |
224 | fgtanBetta = TMath::Tan(fgangle/2.); | |
225 | fgr = (Double_t)fgGeometry->GetIPDistance(); | |
226 | ||
227 | if(!sn.Contains("TRD2")) fgr += fgGeometry->GetSteelFrontThickness(); | |
228 | ||
229 | fga2 = Double_t(fgGeometry->Get2Trd1Dx2()); | |
230 | //PH PrintShish(0); | |
231 | return kTRUE; | |
232 | } | |
233 | ||
234 | // service methods | |
235 | //_____________________________________________________________________________ | |
236 | void AliJetDummyShishKebabTrd1Module::PrintShish(Int_t pri) const | |
237 | { | |
238 | // service method | |
239 | if(pri>=0) { | |
240 | printf("PrintShish() \n a %7.3f:%7.3f | b %7.2f | r %7.2f \n TRD1 angle %7.6f(%5.2f) | tanBetta %7.6f", | |
241 | fga, fga2, fgb, fgr, fgangle, fgangle*TMath::RadToDeg(), fgtanBetta); | |
242 | printf(" fTheta %f : %5.2f : cos(theta) %f\n", | |
243 | fTheta, GetThetaInDegree(),TMath::Cos(fTheta)); | |
244 | if(pri>=1) { | |
245 | printf(" %i |%s| theta %f : fOK.Phi = %f(%5.2f)\n", | |
246 | GetUniqueID(), GetName(), fTheta, fOK.Phi(),fOK.Phi()*TMath::RadToDeg()); | |
247 | printf(" A %f B %f | fThetaA %7.6f(%5.2f)\n", fA,fB, fThetaA,fThetaA*TMath::RadToDeg()); | |
248 | printf(" fOK : X %9.4f: Y %9.4f : eta %5.3f\n", fOK.X(), fOK.Y(), GetEtaOfCenterOfModule()); | |
249 | printf(" fOK1 : X %9.4f: Y %9.4f : (local, ieta=2)\n", fOK1.X(), fOK1.Y()); | |
250 | printf(" fOK2 : X %9.4f: Y %9.4f : (local, ieta=1)\n\n", fOK2.X(), fOK2.Y()); | |
251 | printf(" fOB : X %9.4f: Y %9.4f \n", fOB.X(), fOB.Y()); | |
252 | printf(" fOB1 : X %9.4f: Y %9.4f (local, ieta=2)\n", fOB1.X(), fOB1.Y()); | |
253 | printf(" fOB2 : X %9.4f: Y %9.4f (local, ieta=1)\n", fOB2.X(), fOB2.Y()); | |
254 | // 3X3 | |
255 | printf(" 3X3 \n"); | |
256 | for(Int_t ieta=0; ieta<3; ieta++) { | |
257 | printf(" fOK3X3[%i] : X %9.4f: Y %9.4f (local) \n", ieta, fOK3X3[ieta].X(), fOK3X3[ieta].Y()); | |
258 | } | |
259 | // fOK.Dump(); | |
260 | GetMaxEtaOfModule(pri); | |
261 | } | |
262 | } | |
263 | } | |
264 | ||
265 | //_____________________________________________________________________________ | |
266 | Double_t AliJetDummyShishKebabTrd1Module::GetThetaInDegree() const | |
267 | { | |
268 | return fTheta*TMath::RadToDeg(); | |
269 | } | |
270 | ||
271 | //_____________________________________________________________________________ | |
272 | Double_t AliJetDummyShishKebabTrd1Module::GetEtaOfCenterOfModule() const | |
273 | { | |
274 | return -TMath::Log(TMath::Tan(fOK.Phi()/2.)); | |
275 | } | |
276 | ||
277 | //_____________________________________________________________________________ | |
278 | Double_t AliJetDummyShishKebabTrd1Module::GetMaxEtaOfModule(Int_t pri) const | |
279 | { | |
280 | // Right bottom point of module | |
281 | Double_t xBottom = (fgr - fB) / fA; | |
282 | Double_t thetaBottom = TMath::ATan2(fgr, xBottom); | |
283 | Double_t etaBottom = ThetaToEta(thetaBottom); | |
284 | // Right top point of module | |
285 | Double_t l = fgb / TMath::Cos(fgangle/2.); // length of lateral module side | |
286 | Double_t xTop = xBottom + l*TMath::Cos(TMath::ATan(fA)); | |
287 | Double_t yTop = fA*xTop + fB; | |
288 | Double_t thetaTop = TMath::ATan2(yTop, xTop); | |
289 | Double_t etaTop = ThetaToEta(thetaTop); | |
290 | ||
291 | if(pri) { | |
292 | printf(" Right bottom point of module : eta %5.4f : theta %6.4f (%6.2f) \n", | |
293 | etaBottom, thetaBottom, thetaBottom * TMath::RadToDeg()); | |
294 | printf(" Right top point of module : eta %5.4f : theta %6.4f (%6.2f) \n", | |
295 | etaTop, thetaTop, thetaTop * TMath::RadToDeg()); | |
296 | } | |
297 | return etaBottom>etaTop ? etaBottom : etaTop; | |
298 | } |