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1963b290 | 1 | /************************************************************************** |
3d841a9f | 2 | * Copyright(c) 1998-2010, ALICE Experiment at CERN, All rights reserved. * |
1963b290 | 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 | ||
25ab8a31 | 18 | //_________________________________________________________________________ |
19 | // Main class for TRD1 geometry of Shish-Kebab case. | |
3d841a9f | 20 | // Author: Alexei Pavlinov(WSU). |
21 | // Sep 20004 - Nov 2006; Apr 2010 | |
25ab8a31 | 22 | // See web page with description of Shish-Kebab geometries: |
23 | // http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/shishkebabALICE.html | |
1ae500a2 | 24 | // Nov 9,2006 - added case of 3X3 |
25ab8a31 | 25 | //_________________________________________________________________________ |
1963b290 | 26 | |
b42d4197 | 27 | #include "AliLog.h" |
1963b290 | 28 | #include "AliEMCALShishKebabTrd1Module.h" |
0c5b726e | 29 | #include "AliEMCALEMCGeometry.h" |
1963b290 | 30 | |
d1f9a8ab | 31 | #include <cassert> |
60d70c4d | 32 | |
1963b290 | 33 | ClassImp(AliEMCALShishKebabTrd1Module) |
34 | ||
7cfcebd3 | 35 | //AliEMCALEMCGeometry *AliEMCALShishKebabTrd1Module::fgGeometry=0; |
1963b290 | 36 | Double_t AliEMCALShishKebabTrd1Module::fga=0.; |
37 | Double_t AliEMCALShishKebabTrd1Module::fga2=0.; | |
38 | Double_t AliEMCALShishKebabTrd1Module::fgb=0.; | |
39 | Double_t AliEMCALShishKebabTrd1Module::fgr=0.; | |
e52475ed | 40 | Double_t AliEMCALShishKebabTrd1Module::fgangle=0.; // around one degree |
1963b290 | 41 | Double_t AliEMCALShishKebabTrd1Module::fgtanBetta=0; // |
42 | ||
0a4cb131 | 43 | //_____________________________________________________________________________ |
0c5b726e | 44 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(Double_t theta, AliEMCALEMCGeometry *g) |
18a21c7c | 45 | : TNamed(), |
7cfcebd3 | 46 | fGeometry(g), |
18a21c7c | 47 | fOK(), |
48 | fA(0.), | |
49 | fB(0.), | |
50 | fThetaA(0.), | |
51 | fTheta(theta), | |
52 | fOK1(), | |
53 | fOK2(), | |
54 | fOB(), | |
55 | fOB1(), | |
1d46d1f6 | 56 | fOB2(), |
1ae500a2 | 57 | fThetaOB1(0.), |
58 | fThetaOB2(0.), | |
d1ccaddd | 59 | fOK3X3(), |
60 | fORB(), | |
61 | fORT() | |
25ab8a31 | 62 | { |
3d841a9f | 63 | TString snam(g->GetName()); |
64 | Int_t key=0; | |
65 | if(snam.Contains("FIRSTYEARv1",TString::kIgnoreCase)) key=1; | |
171d2441 | 66 | if(snam.Contains("COMPLETEv1",TString::kIgnoreCase)) key=1; |
7cfcebd3 | 67 | if(GetParameters()) { |
3d841a9f | 68 | DefineFirstModule(key); |
7cfcebd3 | 69 | } |
1963b290 | 70 | DefineName(fTheta); |
663a2634 | 71 | AliDebug(10,Form("AliEMCALShishKebabTrd1Module - first module key=%i: theta %1.4f geometry %s\n",key,fTheta, g->GetName())); |
1963b290 | 72 | } |
73 | ||
0a4cb131 | 74 | //_____________________________________________________________________________ |
18a21c7c | 75 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(AliEMCALShishKebabTrd1Module &leftNeighbor) |
76 | : TNamed(), | |
7cfcebd3 | 77 | fGeometry(leftNeighbor.fGeometry), |
18a21c7c | 78 | fOK(), |
79 | fA(0.), | |
80 | fB(0.), | |
81 | fThetaA(0.), | |
82 | fTheta(0.), | |
83 | fOK1(), | |
84 | fOK2(), | |
85 | fOB(), | |
86 | fOB1(), | |
1d46d1f6 | 87 | fOB2(), |
1ae500a2 | 88 | fThetaOB1(0.), |
89 | fThetaOB2(0.), | |
d1ccaddd | 90 | fOK3X3(), |
91 | fORB(), | |
92 | fORT() | |
25ab8a31 | 93 | { |
1963b290 | 94 | // printf("** Left Neighbor : %s **\n", leftNeighbor.GetName()); |
1963b290 | 95 | fTheta = leftNeighbor.GetTheta() - fgangle; |
1d46d1f6 | 96 | |
97 | TObject::SetUniqueID(leftNeighbor.GetUniqueID()+1); | |
98 | ||
1963b290 | 99 | Init(leftNeighbor.GetA(),leftNeighbor.GetB()); |
100 | } | |
101 | ||
0a4cb131 | 102 | //________________________________________________________________ |
18a21c7c | 103 | AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(const AliEMCALShishKebabTrd1Module& mod) |
104 | : TNamed(mod.GetName(),mod.GetTitle()), | |
7cfcebd3 | 105 | fGeometry(mod.fGeometry), |
18a21c7c | 106 | fOK(mod.fOK), |
107 | fA(mod.fA), | |
108 | fB(mod.fB), | |
109 | fThetaA(mod.fThetaA), | |
110 | fTheta(mod.fTheta), | |
111 | fOK1(mod.fOK1), | |
112 | fOK2(mod.fOK2), | |
113 | fOB(mod.fOB), | |
114 | fOB1(mod.fOB1), | |
60d70c4d | 115 | fOB2(mod.fOB2), |
116 | fThetaOB1(mod.fThetaOB1), | |
d1ccaddd | 117 | fThetaOB2(mod.fThetaOB2), |
118 | fORB(mod.fORB), | |
119 | fORT(mod.fORT) | |
0a4cb131 | 120 | { |
121 | //copy ctor | |
3f66111e | 122 | for (Int_t i=0; i<3; i++) fOK3X3[i] = mod.fOK3X3[i]; |
0a4cb131 | 123 | } |
124 | ||
125 | //________________________________________________________________ | |
25ab8a31 | 126 | void AliEMCALShishKebabTrd1Module::Init(Double_t A, Double_t B) |
127 | { | |
128 | // Define parameter module from parameters A,B from previos. | |
1963b290 | 129 | Double_t yl = (fgb/2)*TMath::Sin(fTheta) + (fga/2)*TMath::Cos(fTheta) + fgr, y = yl; |
130 | Double_t xl = (yl - B) / A; // y=A*x+B | |
131 | ||
132 | // Double_t xp1 = (fga/2. + fgb/2.*fgtanBetta)/(TMath::Sin(fTheta) + fgtanBetta*TMath::Cos(fTheta)); | |
133 | // printf(" xp1 %9.3f \n ", xp1); | |
134 | // xp1 == xp => both methods give the same results - 3-feb-05 | |
135 | Double_t alpha = TMath::Pi()/2. + fgangle/2; | |
136 | Double_t xt = (fga+fga2)*TMath::Tan(fTheta)*TMath::Tan(alpha)/(4.*(1.-TMath::Tan(fTheta)*TMath::Tan(alpha))); | |
137 | Double_t yt = xt / TMath::Tan(fTheta), xp = TMath::Sqrt(xt*xt + yt*yt); | |
138 | Double_t x = xl + xp; | |
139 | fOK.Set(x, y); | |
140 | // printf(" yl %9.3f | xl %9.3f | xp %9.3f \n", yl, xl, xp); | |
141 | ||
142 | // have to define A and B; | |
143 | Double_t yCprev = fgr + fga*TMath::Cos(fTheta); | |
144 | Double_t xCprev = (yCprev - B) / A; | |
145 | Double_t xA = xCprev + fga*TMath::Sin(fTheta), yA = fgr; | |
146 | ||
147 | fThetaA = fTheta - fgangle/2.; | |
148 | fA = TMath::Tan(fThetaA); // !! | |
149 | fB = yA - fA*xA; | |
150 | ||
1d46d1f6 | 151 | DefineAllStaff(); |
152 | } | |
153 | ||
154 | void AliEMCALShishKebabTrd1Module::DefineAllStaff() | |
14c2372a | 155 | { |
0c5b726e | 156 | //Define some parameters |
1963b290 | 157 | DefineName(fTheta); |
1ae500a2 | 158 | // Centers of cells - 2X2 case |
1963b290 | 159 | Double_t kk1 = (fga+fga2)/(2.*4.); // kk1=kk2 |
160 | ||
161 | Double_t xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
e52475ed | 162 | Double_t yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; |
1963b290 | 163 | fOK1.Set(xk1,yk1); |
164 | ||
165 | Double_t xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
e52475ed | 166 | Double_t yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; |
1963b290 | 167 | fOK2.Set(xk2,yk2); |
b44d5aa4 | 168 | |
1ae500a2 | 169 | // Centers of cells - 3X3 case; Nov 9,2006 |
1d46d1f6 | 170 | fOK3X3[1].Set(fOK.X(), fOK.Y()-fgr); // coincide with module center |
171 | ||
172 | kk1 = ((fga+fga2)/4. + fga/6.)/2.; | |
173 | ||
174 | xk1 = fOK.X() - kk1*TMath::Sin(fTheta); | |
175 | yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr; | |
176 | fOK3X3[0].Set(xk1,yk1); | |
177 | ||
178 | xk2 = fOK.X() + kk1*TMath::Sin(fTheta); | |
179 | yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr; | |
180 | fOK3X3[2].Set(xk2,yk2); | |
181 | ||
1ae500a2 | 182 | // May 15, 2006; position of module(cells) center face |
b44d5aa4 | 183 | fOB.Set(fOK.X()-fgb/2.*TMath::Cos(fTheta), fOK.Y()-fgb/2.*TMath::Sin(fTheta)-fgr); |
184 | fOB1.Set(fOB.X()-fga/4.*TMath::Sin(fTheta), fOB.Y()+fga/4.*TMath::Cos(fTheta)); | |
185 | fOB2.Set(fOB.X()+fga/4.*TMath::Sin(fTheta), fOB.Y()-fga/4.*TMath::Cos(fTheta)); | |
1ae500a2 | 186 | // Jul 30, 2007 - for taking into account a position of shower maximum |
187 | fThetaOB1 = fTheta - fgangle/4.; // ?? | |
188 | fThetaOB2 = fTheta + fgangle/4.; | |
d1ccaddd | 189 | |
190 | // Position of right/top point of module | |
191 | // Gives the posibility to estimate SM size in z direction | |
192 | Double_t xBottom = (fgr - fB) / fA; | |
193 | Double_t yBottom = fgr; | |
194 | fORB.Set(xBottom, yBottom); | |
195 | ||
196 | Double_t l = fgb / TMath::Cos(fgangle/2.); // length of lateral module side | |
197 | Double_t xTop = xBottom + l*TMath::Cos(TMath::ATan(fA)); | |
198 | Double_t yTop = fA*xTop + fB; | |
199 | fORT.Set(xTop, yTop); | |
1963b290 | 200 | } |
201 | ||
0a4cb131 | 202 | //_____________________________________________________________________________ |
3d841a9f | 203 | void AliEMCALShishKebabTrd1Module::DefineFirstModule(const Int_t key) |
1963b290 | 204 | { |
3d841a9f | 205 | // Oct 23-25, 2010 |
206 | // key=0 - zero tilt of first module; | |
207 | // key=1 - angle=fgangle/2 = 0.75 degree. | |
208 | // This is what we have in produced SM. | |
1963b290 | 209 | |
3d841a9f | 210 | // Define first module |
211 | if(key==0) { | |
212 | // theta in radians ; first object theta=pi/2. | |
213 | fTheta = TMath::PiOver2(); | |
214 | fOK.Set(fga2/2., fgr + fgb/2.); // position the center of module vs o | |
215 | ||
216 | // parameters of right line : y = A*z + B in system where zero point is IP. | |
217 | fThetaA = fTheta - fgangle/2.; | |
218 | fA = TMath::Tan(fThetaA); | |
219 | Double_t xA = fga/2. + fga2/2.; | |
220 | Double_t yA = fgr; | |
221 | fB = yA - fA*xA; | |
222 | ||
223 | } else if(key==1) { | |
224 | // theta in radians ; first object theta = 90-0.75 = 89.25 degree | |
225 | fTheta = 89.25*TMath::DegToRad(); | |
226 | Double_t al1 = fgangle/2.; | |
227 | Double_t x = 0.5*(fga*TMath::Cos(al1) + fgb*TMath::Sin(al1)); | |
228 | Double_t y = 0.5*(fgb + fga*TMath::Sin(al1))*TMath::Cos(al1); | |
229 | fOK.Set(x, fgr + y); | |
230 | // parameters of right line : y = A*z + B in system where zero point is IP. | |
231 | fThetaA = fTheta - fgangle/2.; | |
232 | fA = TMath::Tan(fThetaA); | |
233 | Double_t xA = fga*TMath::Cos(al1); | |
234 | Double_t yA = fgr; | |
235 | fB = yA - fA*xA; | |
1963b290 | 236 | |
3d841a9f | 237 | } else { |
238 | printf("<E> key=%i : wrong case \n",key); | |
239 | assert(0); | |
240 | } | |
1963b290 | 241 | TObject::SetUniqueID(1); // |
1d46d1f6 | 242 | |
243 | DefineAllStaff(); | |
1963b290 | 244 | } |
245 | ||
0a4cb131 | 246 | //_____________________________________________________________________________ |
25ab8a31 | 247 | void AliEMCALShishKebabTrd1Module::DefineName(Double_t theta) |
1963b290 | 248 | { |
25ab8a31 | 249 | // Define name of object |
250 | SetName(Form("%2i(%5.2f)", TObject::GetUniqueID(), theta*TMath::RadToDeg())); | |
1963b290 | 251 | } |
252 | ||
0a4cb131 | 253 | //_____________________________________________________________________________ |
1963b290 | 254 | Bool_t AliEMCALShishKebabTrd1Module::GetParameters() |
255 | { | |
0c5b726e | 256 | |
257 | // Get needing module parameters from EMCAL geometry | |
a5f0a2ba | 258 | |
7cfcebd3 | 259 | if(!fGeometry) { |
1963b290 | 260 | Warning("GetParameters()"," No geometry "); |
261 | return kFALSE; | |
a5f0a2ba | 262 | } |
263 | ||
264 | TString sn(fGeometry->GetName()); // 2-Feb-05 | |
265 | sn.ToUpper(); | |
0c5b726e | 266 | |
7cfcebd3 | 267 | fga = (Double_t)fGeometry->GetEtaModuleSize(); |
268 | fgb = (Double_t)fGeometry->GetLongModuleSize(); | |
269 | fgangle = Double_t(fGeometry->GetTrd1Angle())*TMath::DegToRad(); | |
1963b290 | 270 | fgtanBetta = TMath::Tan(fgangle/2.); |
7cfcebd3 | 271 | fgr = (Double_t)fGeometry->GetIPDistance(); |
1d46d1f6 | 272 | |
7cfcebd3 | 273 | fgr += fGeometry->GetSteelFrontThickness(); |
1d46d1f6 | 274 | |
7cfcebd3 | 275 | fga2 = Double_t(fGeometry->Get2Trd1Dx2()); |
c4a57092 | 276 | //PH PrintShish(0); |
1963b290 | 277 | return kTRUE; |
278 | } | |
279 | ||
280 | // service methods | |
0a4cb131 | 281 | //_____________________________________________________________________________ |
c63c3c5d | 282 | void AliEMCALShishKebabTrd1Module::PrintShish(int pri) const |
1963b290 | 283 | { |
25ab8a31 | 284 | // service method |
3d841a9f | 285 | if(pri>=0) { |
286 | if(pri >= 1) { | |
287 | printf("PrintShish() \n a %7.3f:%7.3f | b %7.2f | r %7.2f \n TRD1 angle %7.6f(%5.2f) | tanBetta %7.6f", | |
288 | fga, fga2, fgb, fgr, fgangle, fgangle*TMath::RadToDeg(), fgtanBetta); | |
289 | printf(" fTheta %f : %5.2f : cos(theta) %f\n", | |
290 | fTheta, GetThetaInDegree(),TMath::Cos(fTheta)); | |
291 | printf(" OK : %i |%s| theta %f : phi = %f(%5.2f) \n", | |
1963b290 | 292 | GetUniqueID(), GetName(), fTheta, fOK.Phi(),fOK.Phi()*TMath::RadToDeg()); |
3d841a9f | 293 | } |
294 | printf(" y %9.3f x %9.3f xrb %9.3f (right bottom on r=%9.3f ) \n", | |
295 | fOK.X(), fOK.Y(), fORB.X(),fORB.Y()); | |
296 | if(pri>=2) { | |
1963b290 | 297 | printf(" A %f B %f | fThetaA %7.6f(%5.2f)\n", fA,fB, fThetaA,fThetaA*TMath::RadToDeg()); |
1d46d1f6 | 298 | printf(" fOK : X %9.4f: Y %9.4f : eta %5.3f\n", fOK.X(), fOK.Y(), GetEtaOfCenterOfModule()); |
299 | printf(" fOK1 : X %9.4f: Y %9.4f : (local, ieta=2)\n", fOK1.X(), fOK1.Y()); | |
300 | printf(" fOK2 : X %9.4f: Y %9.4f : (local, ieta=1)\n\n", fOK2.X(), fOK2.Y()); | |
b44d5aa4 | 301 | printf(" fOB : X %9.4f: Y %9.4f \n", fOB.X(), fOB.Y()); |
302 | printf(" fOB1 : X %9.4f: Y %9.4f (local, ieta=2)\n", fOB1.X(), fOB1.Y()); | |
303 | printf(" fOB2 : X %9.4f: Y %9.4f (local, ieta=1)\n", fOB2.X(), fOB2.Y()); | |
1d46d1f6 | 304 | // 3X3 |
305 | printf(" 3X3 \n"); | |
306 | for(int ieta=0; ieta<3; ieta++) { | |
307 | printf(" fOK3X3[%i] : X %9.4f: Y %9.4f (local) \n", ieta, fOK3X3[ieta].X(), fOK3X3[ieta].Y()); | |
308 | } | |
b44d5aa4 | 309 | // fOK.Dump(); |
1d46d1f6 | 310 | GetMaxEtaOfModule(pri); |
1963b290 | 311 | } |
312 | } | |
313 | } | |
25ab8a31 | 314 | |
0a4cb131 | 315 | //_____________________________________________________________________________ |
25ab8a31 | 316 | Double_t AliEMCALShishKebabTrd1Module::GetThetaInDegree() const |
317 | { | |
318 | return fTheta*TMath::RadToDeg(); | |
319 | } | |
320 | ||
0a4cb131 | 321 | //_____________________________________________________________________________ |
25ab8a31 | 322 | Double_t AliEMCALShishKebabTrd1Module::GetEtaOfCenterOfModule() const |
323 | { | |
324 | return -TMath::Log(TMath::Tan(fOK.Phi()/2.)); | |
325 | } | |
1d46d1f6 | 326 | |
d297ef6e | 327 | //_____________________________________________________________________________ |
1ae500a2 | 328 | void AliEMCALShishKebabTrd1Module::GetPositionAtCenterCellLine(Int_t ieta, Double_t dist, TVector2 &v) |
329 | { | |
330 | // Jul 30, 2007 | |
331 | static Double_t theta=0., x=0., y=0.; | |
0c8a2c44 | 332 | if(ieta==0) { |
1ae500a2 | 333 | v = fOB2; |
0c8a2c44 | 334 | theta = fTheta; |
1ae500a2 | 335 | } else if(ieta==1) { |
336 | v = fOB1; | |
0c8a2c44 | 337 | theta = fTheta; |
1ae500a2 | 338 | } else { |
339 | assert(0); | |
340 | } | |
0c8a2c44 | 341 | |
1ae500a2 | 342 | x = v.X() + TMath::Cos(theta) * dist; |
343 | y = v.Y() + TMath::Sin(theta) * dist; | |
3d841a9f | 344 | // printf(" GetPositionAtCenterCellLine() %s : dist %f : ieta %i : x %f %f v.X() | y %f %f v.Y() : cos %f sin %f \n", |
345 | //GetName(), dist, ieta, v.X(),x, y,v.Y(),TMath::Cos(theta),TMath::Sin(theta)); | |
1ae500a2 | 346 | v.Set(x,y); |
1ae500a2 | 347 | } |
348 | ||
349 | ||
1d46d1f6 | 350 | //_____________________________________________________________________________ |
351 | Double_t AliEMCALShishKebabTrd1Module::GetMaxEtaOfModule(int pri) const | |
352 | { | |
353 | // Right bottom point of module | |
d1ccaddd | 354 | Double_t thetaBottom = TMath::ATan2(fORB.Y(),fORB.X()); |
1d46d1f6 | 355 | Double_t etaBottom = ThetaToEta(thetaBottom); |
356 | // Right top point of module | |
d1ccaddd | 357 | Double_t thetaTop = TMath::ATan2(fORT.Y(),fORT.X()); |
1d46d1f6 | 358 | Double_t etaTop = ThetaToEta(thetaTop); |
359 | ||
360 | if(pri) { | |
d1ccaddd | 361 | printf(" Right bottom point of module : eta %5.4f : theta %6.4f (%6.2f) : x(zglob) %7.2f y(phi) %5.2f \n", |
362 | etaBottom, thetaBottom, thetaBottom * TMath::RadToDeg(), fORB.X(), fORB.Y()); | |
363 | printf(" Right top point of module : eta %5.4f : theta %6.4f (%6.2f) : x(zglob) %7.2f y(phi) %5.2f \n", | |
364 | etaTop, thetaTop, thetaTop * TMath::RadToDeg(), fORT.X(), fORT.Y()); | |
1d46d1f6 | 365 | } |
366 | return etaBottom>etaTop ? etaBottom : etaTop; | |
367 | } |