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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-2010, 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: Alexei Pavlinov(WSU). | |
21 | // Sep 20004 - Nov 2006; Apr 2010 | |
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 case of 3X3 | |
25 | //_________________________________________________________________________ | |
26 | ||
27 | #include "AliLog.h" | |
28 | #include "AliEMCALShishKebabTrd1Module.h" | |
29 | #include "AliEMCALEMCGeometry.h" | |
30 | ||
31 | #include <cassert> | |
32 | ||
33 | ClassImp(AliEMCALShishKebabTrd1Module) | |
34 | ||
35 | //AliEMCALEMCGeometry *AliEMCALShishKebabTrd1Module::fgGeometry=0; | |
36 | Double_t AliEMCALShishKebabTrd1Module::fga=0.; | |
37 | Double_t AliEMCALShishKebabTrd1Module::fga2=0.; | |
38 | Double_t AliEMCALShishKebabTrd1Module::fgb=0.; | |
39 | Double_t AliEMCALShishKebabTrd1Module::fgr=0.; | |
40 | Double_t AliEMCALShishKebabTrd1Module::fgangle=0.; // around one degree | |
41 | Double_t AliEMCALShishKebabTrd1Module::fgtanBetta=0; // | |
42 | ||
43 | //_____________________________________________________________________________ | |
44 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(Double_t theta, AliEMCALEMCGeometry *g) | |
45 | : TNamed(), | |
46 | fGeometry(g), | |
47 | fOK(), | |
48 | fA(0.), | |
49 | fB(0.), | |
50 | fThetaA(0.), | |
51 | fTheta(theta), | |
52 | fOK1(), | |
53 | fOK2(), | |
54 | fOB(), | |
55 | fOB1(), | |
56 | fOB2(), | |
57 | fThetaOB1(0.), | |
58 | fThetaOB2(0.), | |
59 | fOK3X3(), | |
60 | fORB(), | |
61 | fORT() | |
62 | { | |
63 | // ctor | |
64 | ||
65 | TString snam(g->GetName()); | |
66 | Int_t key=0; | |
67 | if (snam.Contains("v1",TString::kIgnoreCase)) key=1; //EMCAL_COMPLETEV1 vs EMCAL_COMPLETEv1 (or other) | |
68 | ||
69 | if(GetParameters()) { | |
70 | DefineFirstModule(key); | |
71 | } | |
72 | DefineName(fTheta); | |
73 | AliDebug(10,Form("AliEMCALShishKebabTrd1Module - first module key=%i: theta %1.4f geometry %s\n",key,fTheta, g->GetName())); | |
74 | } | |
75 | ||
76 | //_____________________________________________________________________________ | |
77 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(AliEMCALShishKebabTrd1Module &leftNeighbor) | |
78 | : TNamed(), | |
79 | fGeometry(leftNeighbor.fGeometry), | |
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 | fThetaOB1(0.), | |
91 | fThetaOB2(0.), | |
92 | fOK3X3(), | |
93 | fORB(), | |
94 | fORT() | |
95 | { | |
96 | ||
97 | // ctor | |
98 | ||
99 | // printf("** Left Neighbor : %s **\n", leftNeighbor.GetName()); | |
100 | fTheta = leftNeighbor.GetTheta() - fgangle; | |
101 | ||
102 | TObject::SetUniqueID(leftNeighbor.GetUniqueID()+1); | |
103 | ||
104 | Init(leftNeighbor.GetA(),leftNeighbor.GetB()); | |
105 | } | |
106 | ||
107 | //________________________________________________________________ | |
108 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(const AliEMCALShishKebabTrd1Module& mod) | |
109 | : TNamed(mod.GetName(),mod.GetTitle()), | |
110 | fGeometry(mod.fGeometry), | |
111 | fOK(mod.fOK), | |
112 | fA(mod.fA), | |
113 | fB(mod.fB), | |
114 | fThetaA(mod.fThetaA), | |
115 | fTheta(mod.fTheta), | |
116 | fOK1(mod.fOK1), | |
117 | fOK2(mod.fOK2), | |
118 | fOB(mod.fOB), | |
119 | fOB1(mod.fOB1), | |
120 | fOB2(mod.fOB2), | |
121 | fThetaOB1(mod.fThetaOB1), | |
122 | fThetaOB2(mod.fThetaOB2), | |
123 | fORB(mod.fORB), | |
124 | fORT(mod.fORT) | |
125 | { | |
126 | // copy ctor | |
127 | ||
128 | for (Int_t i=0; i<3; i++) fOK3X3[i] = mod.fOK3X3[i]; | |
129 | } | |
130 | ||
131 | //________________________________________________________________ | |
132 | void AliEMCALShishKebabTrd1Module::Init(Double_t A, Double_t B) | |
133 | { | |
134 | // Define parameter module from parameters A,B from previos. | |
135 | Double_t yl = (fgb/2)*TMath::Sin(fTheta) + (fga/2)*TMath::Cos(fTheta) + fgr, y = yl; | |
136 | Double_t xl = (yl - B) / A; // y=A*x+B | |
137 | ||
138 | // Double_t xp1 = (fga/2. + fgb/2.*fgtanBetta)/(TMath::Sin(fTheta) + fgtanBetta*TMath::Cos(fTheta)); | |
139 | // printf(" xp1 %9.3f \n ", xp1); | |
140 | // xp1 == xp => both methods give the same results - 3-feb-05 | |
141 | Double_t alpha = TMath::Pi()/2. + fgangle/2; | |
142 | Double_t xt = (fga+fga2)*TMath::Tan(fTheta)*TMath::Tan(alpha)/(4.*(1.-TMath::Tan(fTheta)*TMath::Tan(alpha))); | |
143 | Double_t yt = xt / TMath::Tan(fTheta), xp = TMath::Sqrt(xt*xt + yt*yt); | |
144 | Double_t x = xl + xp; | |
145 | fOK.Set(x, y); | |
146 | // printf(" yl %9.3f | xl %9.3f | xp %9.3f \n", yl, xl, xp); | |
147 | ||
148 | // have to define A and B; | |
149 | Double_t yCprev = fgr + fga*TMath::Cos(fTheta); | |
150 | Double_t xCprev = (yCprev - B) / A; | |
151 | Double_t xA = xCprev + fga*TMath::Sin(fTheta), yA = fgr; | |
152 | ||
153 | fThetaA = fTheta - fgangle/2.; | |
154 | fA = TMath::Tan(fThetaA); // !! | |
155 | fB = yA - fA*xA; | |
156 | ||
157 | DefineAllStaff(); | |
158 | } | |
159 | ||
160 | void AliEMCALShishKebabTrd1Module::DefineAllStaff() | |
161 | { | |
162 | //Define some parameters | |
163 | DefineName(fTheta); | |
164 | // Centers of cells - 2X2 case | |
165 | Double_t kk1 = (fga+fga2)/(2.*4.); // kk1=kk2 | |
166 | ||
167 | Double_t xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
168 | Double_t yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; | |
169 | fOK1.Set(xk1,yk1); | |
170 | ||
171 | Double_t xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
172 | Double_t yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; | |
173 | fOK2.Set(xk2,yk2); | |
174 | ||
175 | // Centers of cells - 3X3 case; Nov 9,2006 | |
176 | fOK3X3[1].Set(fOK.X(), fOK.Y()-fgr); // coincide with module center | |
177 | ||
178 | kk1 = ((fga+fga2)/4. + fga/6.)/2.; | |
179 | ||
180 | xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
181 | yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; | |
182 | fOK3X3[0].Set(xk1,yk1); | |
183 | ||
184 | xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
185 | yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; | |
186 | fOK3X3[2].Set(xk2,yk2); | |
187 | ||
188 | // May 15, 2006; position of module(cells) center face | |
189 | fOB.Set(fOK.X()-fgb/2.*TMath::Cos(fTheta), fOK.Y()-fgb/2.*TMath::Sin(fTheta)-fgr); | |
190 | fOB1.Set(fOB.X()-fga/4.*TMath::Sin(fTheta), fOB.Y()+fga/4.*TMath::Cos(fTheta)); | |
191 | fOB2.Set(fOB.X()+fga/4.*TMath::Sin(fTheta), fOB.Y()-fga/4.*TMath::Cos(fTheta)); | |
192 | // Jul 30, 2007 - for taking into account a position of shower maximum | |
193 | fThetaOB1 = fTheta - fgangle/4.; // ?? | |
194 | fThetaOB2 = fTheta + fgangle/4.; | |
195 | ||
196 | // Position of right/top point of module | |
197 | // Gives the posibility to estimate SM size in z direction | |
198 | Double_t xBottom = (fgr - fB) / fA; | |
199 | Double_t yBottom = fgr; | |
200 | fORB.Set(xBottom, yBottom); | |
201 | ||
202 | Double_t l = fgb / TMath::Cos(fgangle/2.); // length of lateral module side | |
203 | Double_t xTop = xBottom + l*TMath::Cos(TMath::ATan(fA)); | |
204 | Double_t yTop = fA*xTop + fB; | |
205 | fORT.Set(xTop, yTop); | |
206 | } | |
207 | ||
208 | //_____________________________________________________________________________ | |
209 | void AliEMCALShishKebabTrd1Module::DefineFirstModule(const Int_t key) | |
210 | { | |
211 | // Oct 23-25, 2010 | |
212 | // key=0 - zero tilt of first module; | |
213 | // key=1 - angle=fgangle/2 = 0.75 degree. | |
214 | // This is what we have in produced SM. | |
215 | ||
216 | // Define first module | |
217 | if(key==0) { | |
218 | // theta in radians ; first object theta=pi/2. | |
219 | fTheta = TMath::PiOver2(); | |
220 | fOK.Set(fga2/2., fgr + fgb/2.); // position the center of module vs o | |
221 | ||
222 | // parameters of right line : y = A*z + B in system where zero point is IP. | |
223 | fThetaA = fTheta - fgangle/2.; | |
224 | fA = TMath::Tan(fThetaA); | |
225 | Double_t xA = fga/2. + fga2/2.; | |
226 | Double_t yA = fgr; | |
227 | fB = yA - fA*xA; | |
228 | ||
229 | } else if(key==1) { | |
230 | // theta in radians ; first object theta = 90-0.75 = 89.25 degree | |
231 | fTheta = 89.25*TMath::DegToRad(); | |
232 | Double_t al1 = fgangle/2.; | |
233 | Double_t x = 0.5*(fga*TMath::Cos(al1) + fgb*TMath::Sin(al1)); | |
234 | Double_t y = 0.5*(fgb + fga*TMath::Sin(al1))*TMath::Cos(al1); | |
235 | fOK.Set(x, fgr + y); | |
236 | // parameters of right line : y = A*z + B in system where zero point is IP. | |
237 | fThetaA = fTheta - fgangle/2.; | |
238 | fA = TMath::Tan(fThetaA); | |
239 | Double_t xA = fga*TMath::Cos(al1); | |
240 | Double_t yA = fgr; | |
241 | fB = yA - fA*xA; | |
242 | ||
243 | } else { | |
244 | printf("<E> key=%i : wrong case \n",key); | |
245 | assert(0); | |
246 | } | |
247 | TObject::SetUniqueID(1); // | |
248 | ||
249 | DefineAllStaff(); | |
250 | } | |
251 | ||
252 | //_____________________________________________________________________________ | |
253 | void AliEMCALShishKebabTrd1Module::DefineName(Double_t theta) | |
254 | { | |
255 | // Define name of object | |
256 | SetName(Form("%2i(%5.2f)", TObject::GetUniqueID(), theta*TMath::RadToDeg())); | |
257 | } | |
258 | ||
259 | //_____________________________________________________________________________ | |
260 | Bool_t AliEMCALShishKebabTrd1Module::GetParameters() | |
261 | { | |
262 | ||
263 | // Get needing module parameters from EMCAL geometry | |
264 | ||
265 | if(!fGeometry) { | |
266 | Warning("GetParameters()"," No geometry "); | |
267 | return kFALSE; | |
268 | } | |
269 | ||
270 | TString sn(fGeometry->GetName()); // 2-Feb-05 | |
271 | sn.ToUpper(); | |
272 | ||
273 | fga = (Double_t)fGeometry->GetEtaModuleSize(); | |
274 | fgb = (Double_t)fGeometry->GetLongModuleSize(); | |
275 | fgangle = Double_t(fGeometry->GetTrd1Angle())*TMath::DegToRad(); | |
276 | fgtanBetta = TMath::Tan(fgangle/2.); | |
277 | fgr = (Double_t)fGeometry->GetIPDistance(); | |
278 | ||
279 | fgr += fGeometry->GetSteelFrontThickness(); | |
280 | ||
281 | fga2 = Double_t(fGeometry->Get2Trd1Dx2()); | |
282 | //PH PrintShish(0); | |
283 | return kTRUE; | |
284 | } | |
285 | ||
286 | // service methods | |
287 | //_____________________________________________________________________________ | |
288 | void AliEMCALShishKebabTrd1Module::PrintShish(int pri) const | |
289 | { | |
290 | // service method | |
291 | if(pri>=0) { | |
292 | if(pri >= 1) { | |
293 | printf("PrintShish() \n a %7.3f:%7.3f | b %7.2f | r %7.2f \n TRD1 angle %7.6f(%5.2f) | tanBetta %7.6f", | |
294 | fga, fga2, fgb, fgr, fgangle, fgangle*TMath::RadToDeg(), fgtanBetta); | |
295 | printf(" fTheta %f : %5.2f : cos(theta) %f\n", | |
296 | fTheta, GetThetaInDegree(),TMath::Cos(fTheta)); | |
297 | printf(" OK : %i |%s| theta %f : phi = %f(%5.2f) \n", | |
298 | GetUniqueID(), GetName(), fTheta, fOK.Phi(),fOK.Phi()*TMath::RadToDeg()); | |
299 | } | |
300 | printf(" y %9.3f x %9.3f xrb %9.3f (right bottom on r=%9.3f ) \n", | |
301 | fOK.X(), fOK.Y(), fORB.X(),fORB.Y()); | |
302 | if(pri>=2) { | |
303 | printf(" A %f B %f | fThetaA %7.6f(%5.2f)\n", fA,fB, fThetaA,fThetaA*TMath::RadToDeg()); | |
304 | printf(" fOK : X %9.4f: Y %9.4f : eta %5.3f\n", fOK.X(), fOK.Y(), GetEtaOfCenterOfModule()); | |
305 | printf(" fOK1 : X %9.4f: Y %9.4f : (local, ieta=2)\n", fOK1.X(), fOK1.Y()); | |
306 | printf(" fOK2 : X %9.4f: Y %9.4f : (local, ieta=1)\n\n", fOK2.X(), fOK2.Y()); | |
307 | printf(" fOB : X %9.4f: Y %9.4f \n", fOB.X(), fOB.Y()); | |
308 | printf(" fOB1 : X %9.4f: Y %9.4f (local, ieta=2)\n", fOB1.X(), fOB1.Y()); | |
309 | printf(" fOB2 : X %9.4f: Y %9.4f (local, ieta=1)\n", fOB2.X(), fOB2.Y()); | |
310 | // 3X3 | |
311 | printf(" 3X3 \n"); | |
312 | for(int ieta=0; ieta<3; ieta++) { | |
313 | printf(" fOK3X3[%i] : X %9.4f: Y %9.4f (local) \n", ieta, fOK3X3[ieta].X(), fOK3X3[ieta].Y()); | |
314 | } | |
315 | // fOK.Dump(); | |
316 | GetMaxEtaOfModule(pri); | |
317 | } | |
318 | } | |
319 | } | |
320 | ||
321 | //_____________________________________________________________________________ | |
322 | Double_t AliEMCALShishKebabTrd1Module::GetThetaInDegree() const | |
323 | { | |
324 | return fTheta*TMath::RadToDeg(); | |
325 | } | |
326 | ||
327 | //_____________________________________________________________________________ | |
328 | Double_t AliEMCALShishKebabTrd1Module::GetEtaOfCenterOfModule() const | |
329 | { | |
330 | return -TMath::Log(TMath::Tan(fOK.Phi()/2.)); | |
331 | } | |
332 | ||
333 | //_____________________________________________________________________________ | |
334 | void AliEMCALShishKebabTrd1Module::GetPositionAtCenterCellLine(Int_t ieta, Double_t dist, TVector2 &v) | |
335 | { | |
336 | // Jul 30, 2007 | |
337 | static Double_t theta=0., x=0., y=0.; | |
338 | if(ieta==0) { | |
339 | v = fOB2; | |
340 | theta = fTheta; | |
341 | } else if(ieta==1) { | |
342 | v = fOB1; | |
343 | theta = fTheta; | |
344 | } else { | |
345 | assert(0); | |
346 | } | |
347 | ||
348 | x = v.X() + TMath::Cos(theta) * dist; | |
349 | y = v.Y() + TMath::Sin(theta) * dist; | |
350 | // printf(" GetPositionAtCenterCellLine() %s : dist %f : ieta %i : x %f %f v.X() | y %f %f v.Y() : cos %f sin %f \n", | |
351 | //GetName(), dist, ieta, v.X(),x, y,v.Y(),TMath::Cos(theta),TMath::Sin(theta)); | |
352 | v.Set(x,y); | |
353 | } | |
354 | ||
355 | ||
356 | //_____________________________________________________________________________ | |
357 | Double_t AliEMCALShishKebabTrd1Module::GetMaxEtaOfModule(int pri) const | |
358 | { | |
359 | // Right bottom point of module | |
360 | Double_t thetaBottom = TMath::ATan2(fORB.Y(),fORB.X()); | |
361 | Double_t etaBottom = ThetaToEta(thetaBottom); | |
362 | // Right top point of module | |
363 | Double_t thetaTop = TMath::ATan2(fORT.Y(),fORT.X()); | |
364 | Double_t etaTop = ThetaToEta(thetaTop); | |
365 | ||
366 | if(pri) { | |
367 | printf(" Right bottom point of module : eta %5.4f : theta %6.4f (%6.2f) : x(zglob) %7.2f y(phi) %5.2f \n", | |
368 | etaBottom, thetaBottom, thetaBottom * TMath::RadToDeg(), fORB.X(), fORB.Y()); | |
369 | printf(" Right top point of module : eta %5.4f : theta %6.4f (%6.2f) : x(zglob) %7.2f y(phi) %5.2f \n", | |
370 | etaTop, thetaTop, thetaTop * TMath::RadToDeg(), fORT.X(), fORT.Y()); | |
371 | } | |
372 | return etaBottom>etaTop ? etaBottom : etaTop; | |
373 | } |