Correct initialization of ann array
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALShishKebabTrd1Module.cxx
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1963b290 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
25ab8a31 18//_________________________________________________________________________
19// Main class for TRD1 geometry of Shish-Kebab case.
20// Author: Aleksei Pavlinov(WSU).
1d46d1f6 21// Sep 20004 - Nov 2006
25ab8a31 22// See web page with description of Shish-Kebab geometries:
23// http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/shishkebabALICE.html
1d46d1f6 24// Nov 9,2006 - added cas of 3X3
25ab8a31 25//_________________________________________________________________________
1963b290 26
b42d4197 27#include "AliLog.h"
1963b290 28#include "AliEMCALShishKebabTrd1Module.h"
25ab8a31 29//#include <assert.h>
1963b290 30#include "AliEMCALGeometry.h"
31
25ab8a31 32#include <Riostream.h>
e52475ed 33#include <TMath.h>
34
1963b290 35ClassImp(AliEMCALShishKebabTrd1Module)
36
37 AliEMCALGeometry *AliEMCALShishKebabTrd1Module::fgGeometry=0;
38 Double_t AliEMCALShishKebabTrd1Module::fga=0.;
39 Double_t AliEMCALShishKebabTrd1Module::fga2=0.;
40 Double_t AliEMCALShishKebabTrd1Module::fgb=0.;
41 Double_t AliEMCALShishKebabTrd1Module::fgr=0.;
e52475ed 42 Double_t AliEMCALShishKebabTrd1Module::fgangle=0.; // around one degree
1963b290 43 Double_t AliEMCALShishKebabTrd1Module::fgtanBetta=0; //
44
0a4cb131 45//_____________________________________________________________________________
18a21c7c 46AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(Double_t theta, AliEMCALGeometry *g)
47 : TNamed(),
48 fOK(),
49 fA(0.),
50 fB(0.),
51 fThetaA(0.),
52 fTheta(theta),
53 fOK1(),
54 fOK2(),
55 fOB(),
56 fOB1(),
1d46d1f6 57 fOB2(),
58 fOK3X3()
25ab8a31 59{
60 // theta in radians ; first object shold be with theta=pi/2.
1963b290 61 if(fgGeometry==0) {
25ab8a31 62 fTheta = TMath::PiOver2();
e52475ed 63 fgGeometry = g;
1963b290 64 if(GetParameters()) {
65 DefineFirstModule();
66 }
67 } else Warning("AliEMCALShishKebabTrd1Module(theta)","You should call this constractor just once !!");
68 DefineName(fTheta);
b42d4197 69 AliInfo(Form("AliEMCALShishKebabTrd1Module - first module: theta %1.4f geometry %s",fTheta,g->GetName()));
1963b290 70}
71
0a4cb131 72//_____________________________________________________________________________
18a21c7c 73AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(AliEMCALShishKebabTrd1Module &leftNeighbor)
74 : TNamed(),
75 fOK(),
76 fA(0.),
77 fB(0.),
78 fThetaA(0.),
79 fTheta(0.),
80 fOK1(),
81 fOK2(),
82 fOB(),
83 fOB1(),
1d46d1f6 84 fOB2(),
85 fOK3X3()
25ab8a31 86{
1963b290 87 // printf("** Left Neighbor : %s **\n", leftNeighbor.GetName());
1963b290 88 fTheta = leftNeighbor.GetTheta() - fgangle;
1d46d1f6 89
90 TObject::SetUniqueID(leftNeighbor.GetUniqueID()+1);
91
1963b290 92 Init(leftNeighbor.GetA(),leftNeighbor.GetB());
93}
94
0a4cb131 95//________________________________________________________________
18a21c7c 96AliEMCALShishKebabTrd1Module::AliEMCALShishKebabTrd1Module(const AliEMCALShishKebabTrd1Module& mod)
97 : TNamed(mod.GetName(),mod.GetTitle()),
98 fOK(mod.fOK),
99 fA(mod.fA),
100 fB(mod.fB),
101 fThetaA(mod.fThetaA),
102 fTheta(mod.fTheta),
103 fOK1(mod.fOK1),
104 fOK2(mod.fOK2),
105 fOB(mod.fOB),
106 fOB1(mod.fOB1),
3f66111e 107 fOB2(mod.fOB2)
0a4cb131 108{
109 //copy ctor
3f66111e 110 for (Int_t i=0; i<3; i++) fOK3X3[i] = mod.fOK3X3[i];
0a4cb131 111}
112
113//________________________________________________________________
25ab8a31 114void AliEMCALShishKebabTrd1Module::Init(Double_t A, Double_t B)
115{
116 // Define parameter module from parameters A,B from previos.
1963b290 117 Double_t yl = (fgb/2)*TMath::Sin(fTheta) + (fga/2)*TMath::Cos(fTheta) + fgr, y = yl;
118 Double_t xl = (yl - B) / A; // y=A*x+B
119
120 // Double_t xp1 = (fga/2. + fgb/2.*fgtanBetta)/(TMath::Sin(fTheta) + fgtanBetta*TMath::Cos(fTheta));
121 // printf(" xp1 %9.3f \n ", xp1);
122 // xp1 == xp => both methods give the same results - 3-feb-05
123 Double_t alpha = TMath::Pi()/2. + fgangle/2;
124 Double_t xt = (fga+fga2)*TMath::Tan(fTheta)*TMath::Tan(alpha)/(4.*(1.-TMath::Tan(fTheta)*TMath::Tan(alpha)));
125 Double_t yt = xt / TMath::Tan(fTheta), xp = TMath::Sqrt(xt*xt + yt*yt);
126 Double_t x = xl + xp;
127 fOK.Set(x, y);
128 // printf(" yl %9.3f | xl %9.3f | xp %9.3f \n", yl, xl, xp);
129
130 // have to define A and B;
131 Double_t yCprev = fgr + fga*TMath::Cos(fTheta);
132 Double_t xCprev = (yCprev - B) / A;
133 Double_t xA = xCprev + fga*TMath::Sin(fTheta), yA = fgr;
134
135 fThetaA = fTheta - fgangle/2.;
136 fA = TMath::Tan(fThetaA); // !!
137 fB = yA - fA*xA;
138
1d46d1f6 139 DefineAllStaff();
140}
141
142void AliEMCALShishKebabTrd1Module::DefineAllStaff()
143{
1963b290 144 DefineName(fTheta);
1d46d1f6 145 // Centers of module - 2X2 case
1963b290 146 Double_t kk1 = (fga+fga2)/(2.*4.); // kk1=kk2
147
148 Double_t xk1 = fOK.X() - kk1*TMath::Sin(fTheta);
e52475ed 149 Double_t yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr;
1963b290 150 fOK1.Set(xk1,yk1);
151
152 Double_t xk2 = fOK.X() + kk1*TMath::Sin(fTheta);
e52475ed 153 Double_t yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr;
1963b290 154 fOK2.Set(xk2,yk2);
b44d5aa4 155
1d46d1f6 156 // Centers of module - 3X3 case; Nov 9,2006
157 fOK3X3[1].Set(fOK.X(), fOK.Y()-fgr); // coincide with module center
158
159 kk1 = ((fga+fga2)/4. + fga/6.)/2.;
160
161 xk1 = fOK.X() - kk1*TMath::Sin(fTheta);
162 yk1 = fOK.Y() + kk1*TMath::Cos(fTheta) - fgr;
163 fOK3X3[0].Set(xk1,yk1);
164
165 xk2 = fOK.X() + kk1*TMath::Sin(fTheta);
166 yk2 = fOK.Y() - kk1*TMath::Cos(fTheta) - fgr;
167 fOK3X3[2].Set(xk2,yk2);
168
b44d5aa4 169 // May 15, 2006; position of cell face of cells
170 fOB.Set(fOK.X()-fgb/2.*TMath::Cos(fTheta), fOK.Y()-fgb/2.*TMath::Sin(fTheta)-fgr);
171 fOB1.Set(fOB.X()-fga/4.*TMath::Sin(fTheta), fOB.Y()+fga/4.*TMath::Cos(fTheta));
172 fOB2.Set(fOB.X()+fga/4.*TMath::Sin(fTheta), fOB.Y()-fga/4.*TMath::Cos(fTheta));
1d46d1f6 173
1963b290 174}
175
0a4cb131 176//_____________________________________________________________________________
1963b290 177void AliEMCALShishKebabTrd1Module::DefineFirstModule()
178{
25ab8a31 179 // Define first module
1963b290 180 fOK.Set(fga2/2., fgr + fgb/2.); // position the center of module vs o
181
182 // parameters of right line : y = A*z + B in system where zero point is IP.
183 fThetaA = fTheta - fgangle/2.;
184 fA = TMath::Tan(fThetaA);
185 Double_t xA = fga/2. + fga2/2., yA = fgr;
186 fB = yA - fA*xA;
187
1963b290 188 TObject::SetUniqueID(1); //
1d46d1f6 189
190 DefineAllStaff();
1963b290 191}
192
0a4cb131 193//_____________________________________________________________________________
25ab8a31 194void AliEMCALShishKebabTrd1Module::DefineName(Double_t theta)
1963b290 195{
25ab8a31 196 // Define name of object
197 SetName(Form("%2i(%5.2f)", TObject::GetUniqueID(), theta*TMath::RadToDeg()));
1963b290 198}
199
0a4cb131 200//_____________________________________________________________________________
1963b290 201Bool_t AliEMCALShishKebabTrd1Module::GetParameters()
202{
25ab8a31 203 // Get needing module parameters from EMCAL geometry
e52475ed 204 if(!fgGeometry) fgGeometry = AliEMCALGeometry::GetInstance();
1963b290 205 TString sn(fgGeometry->GetName()); // 2-Feb-05
206 sn.ToUpper();
207 if(!fgGeometry) {
208 Warning("GetParameters()"," No geometry ");
209 return kFALSE;
210 }
211
212 fga = (Double_t)fgGeometry->GetEtaModuleSize();
213 fgb = (Double_t)fgGeometry->GetLongModuleSize();
214 fgangle = Double_t(fgGeometry->GetTrd1Angle())*TMath::DegToRad();
215 fgtanBetta = TMath::Tan(fgangle/2.);
216 fgr = (Double_t)fgGeometry->GetIPDistance();
1d46d1f6 217
1963b290 218 if(!sn.Contains("TRD2")) fgr += fgGeometry->GetSteelFrontThickness();
1d46d1f6 219
1963b290 220 fga2 = Double_t(fgGeometry->Get2Trd1Dx2());
c4a57092 221 //PH PrintShish(0);
1963b290 222 return kTRUE;
223}
224
225// service methods
0a4cb131 226//_____________________________________________________________________________
c63c3c5d 227void AliEMCALShishKebabTrd1Module::PrintShish(int pri) const
1963b290 228{
25ab8a31 229 // service method
1963b290 230 if(pri>=0) {
b44d5aa4 231 printf("PrintShish() \n a %7.3f:%7.3f | b %7.2f | r %7.2f \n TRD1 angle %7.6f(%5.2f) | tanBetta %7.6f",
1963b290 232 fga, fga2, fgb, fgr, fgangle, fgangle*TMath::RadToDeg(), fgtanBetta);
233 printf(" fTheta %f : %5.2f : cos(theta) %f\n",
234 fTheta, GetThetaInDegree(),TMath::Cos(fTheta));
e52475ed 235 if(pri>=1) {
b44d5aa4 236 printf(" %i |%s| theta %f : fOK.Phi = %f(%5.2f)\n",
1963b290 237 GetUniqueID(), GetName(), fTheta, fOK.Phi(),fOK.Phi()*TMath::RadToDeg());
238 printf(" A %f B %f | fThetaA %7.6f(%5.2f)\n", fA,fB, fThetaA,fThetaA*TMath::RadToDeg());
1d46d1f6 239 printf(" fOK : X %9.4f: Y %9.4f : eta %5.3f\n", fOK.X(), fOK.Y(), GetEtaOfCenterOfModule());
240 printf(" fOK1 : X %9.4f: Y %9.4f : (local, ieta=2)\n", fOK1.X(), fOK1.Y());
241 printf(" fOK2 : X %9.4f: Y %9.4f : (local, ieta=1)\n\n", fOK2.X(), fOK2.Y());
b44d5aa4 242 printf(" fOB : X %9.4f: Y %9.4f \n", fOB.X(), fOB.Y());
243 printf(" fOB1 : X %9.4f: Y %9.4f (local, ieta=2)\n", fOB1.X(), fOB1.Y());
244 printf(" fOB2 : X %9.4f: Y %9.4f (local, ieta=1)\n", fOB2.X(), fOB2.Y());
1d46d1f6 245 // 3X3
246 printf(" 3X3 \n");
247 for(int ieta=0; ieta<3; ieta++) {
248 printf(" fOK3X3[%i] : X %9.4f: Y %9.4f (local) \n", ieta, fOK3X3[ieta].X(), fOK3X3[ieta].Y());
249 }
b44d5aa4 250 // fOK.Dump();
1d46d1f6 251 GetMaxEtaOfModule(pri);
1963b290 252 }
253 }
254}
25ab8a31 255
0a4cb131 256//_____________________________________________________________________________
25ab8a31 257Double_t AliEMCALShishKebabTrd1Module::GetThetaInDegree() const
258{
259 return fTheta*TMath::RadToDeg();
260}
261
0a4cb131 262//_____________________________________________________________________________
25ab8a31 263Double_t AliEMCALShishKebabTrd1Module::GetEtaOfCenterOfModule() const
264{
265 return -TMath::Log(TMath::Tan(fOK.Phi()/2.));
266}
1d46d1f6 267
268//_____________________________________________________________________________
269Double_t AliEMCALShishKebabTrd1Module::GetMaxEtaOfModule(int pri) const
270{
271 // Right bottom point of module
272 Double_t xBottom = (fgr - fB) / fA;
273 Double_t thetaBottom = TMath::ATan2(fgr, xBottom);
274 Double_t etaBottom = ThetaToEta(thetaBottom);
275 // Right top point of module
276 Double_t l = fgb / TMath::Cos(fgangle/2.); // length of lateral module side
277 Double_t xTop = xBottom + l*TMath::Cos(TMath::ATan(fA));
278 Double_t yTop = fA*xTop + fB;
279 Double_t thetaTop = TMath::ATan2(yTop, xTop);
280 Double_t etaTop = ThetaToEta(thetaTop);
281
282 if(pri) {
283 printf(" Right bottom point of module : eta %5.4f : theta %6.4f (%6.2f) \n",
284 etaBottom, thetaBottom, thetaBottom * TMath::RadToDeg());
285 printf(" Right top point of module : eta %5.4f : theta %6.4f (%6.2f) \n",
286 etaTop, thetaTop, thetaTop * TMath::RadToDeg());
287 }
288 return etaBottom>etaTop ? etaBottom : etaTop;
289}