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