1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.20.1 2007/05/19 decaro
19 Added the following methods:
20 GetVolumeIndices(Int_t index, Int_t *det), to get
21 the volume indices (sector, plate, strip, padz, padx,
22 stored respectively in det[0], det[1], det[2], det[3], det[4])
23 from the calibration channel index;
24 NStrip(Int_t nPlate), to get the strips number
25 per each kind of TOF module.
27 Revision 1.20 2007/10/08 17:52:55 decaro
28 hole region in front of PHOS detector: update of sectors' numbers
30 Revision 1.19 2007/10/04 14:05:09 zampolli
31 AliTOFGeometryV5 becoming AliTOFGeometry
33 Revision 1.18 2007/02/19 18:55:26 decaro
34 Added getter methods for volume path (for Event Display)
36 Revision 1.17.1 2006/12/15
37 Added method DetToStripRF(...) to get
38 a pad corner coordinates in its strip reference frame
39 (A.De Caro, M.Di Stefano)
40 Revision 1.17 2006/08/22 13:30:02 arcelli
41 removal of effective c++ warnings (C.Zampolli)
43 Revision 1.16 2006/04/20 22:30:50 hristov
44 Coding conventions (Annalisa)
46 Revision 1.15 2006/04/16 22:29:05 hristov
47 Coding conventions (Annalisa)
49 Revision 1.14 2006/04/05 08:35:38 hristov
50 Coding conventions (S.Arcelli, C.Zampolli)
52 Revision 1.13 2006/03/12 14:37:54 arcelli
53 Changes for TOF Reconstruction using TGeo
55 Revision 1.12 2006/02/28 10:38:00 decaro
56 AliTOFGeometry::fAngles, AliTOFGeometry::fHeights, AliTOFGeometry::fDistances arrays: dimension definition in the right location
58 Revision 1.11 2005/12/15 14:17:29 decaro
59 Correction of some parameter values
61 Revision 1.10 2005/12/15 08:55:32 decaro
62 New TOF geometry description (V5) -G. Cara Romeo and A. De Caro
64 Revision 1.9.1 2005/07/19 A. De Caro
65 Created daughter-classes AliTOFGeometryV4 and AliTOFGeometryV5
66 => moved global methods IsInsideThePad, DistanceToPad,
67 GetPlate, GetSector, GetStrip, GetPadX, GetPadZ,
68 GetX, GetY, GetZ, GetPadDx, GetPadDy and GetPadDz
71 Revision 1.9 2005/10/20 12:41:35 hristov
72 Implementation of parallel tracking. It is not the default version, one can use it passing option MI from AliReconstruction to TOF (M.Ivanov)
74 Revision 1.8 2004/11/29 08:28:01 decaro
75 Introduction of a new TOF constant (i.e. TDC bin width)
77 Revision 1.7 2004/11/05 07:20:08 decaro
78 TOF library splitting and conversion of some printout messages in AliLog schema (T.Kuhr)
80 Revision 1.6 2004/06/15 15:27:59 decaro
81 TOF raw data: preliminary implementation and style changes
83 Revision 1.5 2004/04/20 14:37:22 hristov
84 Using TMath::Abs instead of fabs, arrays of variable size created/deleted correctly (HP,Sun)
86 Revision 1.4 2004/04/13 09:42:51 decaro
87 Track reconstruction code for TOF: updating
89 Revision 1.3 2003/12/29 18:40:39 hristov
90 Copy/paste error corrected
92 Revision 1.2 2003/12/29 17:26:01 hristov
93 Using enum to initaialize static ints in the header file, the initialization of static floats moved to the implementation file
95 Revision 1.1 2003/12/29 15:18:03 decaro
96 TOF geometry updating (addition of AliTOFGeometry)
98 Revision 0.05 2004/6/11 A.De Caro
99 Implement Global method NpadXStrip
100 Insert four float constants (originally in AliTOF class)
101 Revision 0.04 2004/4/05 S.Arcelli
102 Implement Global methods IsInsideThePad
104 Revision 0.03 2003/12/14 S.Arcelli
105 Set Phi range [-180,180]->[0,360]
106 Revision 0.02 2003/12/10 S.Arcelli:
107 Implement Global methods GetPos & GetDetID
108 Revision 0.01 2003/12/04 S.Arcelli
111 ///////////////////////////////////////////////////////////////////////////////
113 // TOF Geometry class //
115 ///////////////////////////////////////////////////////////////////////////////
117 #include "TGeoManager.h"
118 //#include "TGeoMatrix.h"
121 #include "AliConst.h"
122 #include "AliGeomManager.h"
125 #include "AliTOFGeometry.h"
127 extern TGeoManager *gGeoManager;
129 ClassImp(AliTOFGeometry)
131 const Float_t AliTOFGeometry::fgkZlenA = 370.6*2.; // length (cm) of the A module
132 const Float_t AliTOFGeometry::fgkZlenB = 146.5; // length (cm) of the B module
133 const Float_t AliTOFGeometry::fgkZlenC = 170.45; // length (cm) of the C module
134 const Float_t AliTOFGeometry::fgkMaxhZtof = 370.6; // Max half z-size of TOF (cm)
136 const Float_t AliTOFGeometry::fgkxTOF = 372.00;// Inner radius of the TOF for Reconstruction (cm)
137 const Float_t AliTOFGeometry::fgkRmin = 371.00;// Inner radius of the TOF (cm)
138 const Float_t AliTOFGeometry::fgkRmax = 400.05;// Outer radius of the TOF (cm)
140 const Float_t AliTOFGeometry::fgkXPad = 2.5; // Pad size in the x direction (cm)
141 const Float_t AliTOFGeometry::fgkZPad = 3.5; // Pad size in the z direction (cm)
143 const Float_t AliTOFGeometry::fgkStripLength = 122.;// Strip Length (rho X phi direction) (cm)
145 const Float_t AliTOFGeometry::fgkSigmaForTail1= 2.; //Sig1 for simulation of TDC tails
146 const Float_t AliTOFGeometry::fgkSigmaForTail2= 0.5;//Sig2 for simulation of TDC tails
148 const Float_t AliTOFGeometry::fgkPhiSec= 20;//sector Phi width (deg)
150 const Float_t AliTOFGeometry::fgkTdcBin = 24.4; // time-of-flight bin width [ps]
151 const Float_t AliTOFGeometry::fgkToTBin = 48.8; // time-over-threshold bin width [ps]
152 const Float_t AliTOFGeometry::fgkBunchCrossingBin = fgkTdcBin * 1024; // bunch-crossing bin width [ps]
154 const Float_t AliTOFGeometry::fgkSlewTOTMin = 10.; // min TOT for slewing correction [ns]
155 const Float_t AliTOFGeometry::fgkSlewTOTMax = 16.; // max TOT for slewing correction [ns]
157 const Float_t AliTOFGeometry::fgkDeadTime = 25E+03; // Single channel dead time (ps)
158 const Float_t AliTOFGeometry::fgkMatchingWindow = fgkTdcBin*TMath::Power(2,13); // Matching window (ps)
160 const Float_t AliTOFGeometry::fgkAngles[kNPlates][kMaxNstrip] = {
161 { 43.99, 43.20, 42.40, 41.59, 40.77, 39.94, 39.11, 38.25, 37.40, 36.53,
162 35.65, 34.76, 33.87, 32.96, 32.05, 31.13, 30.19, 29.24, 12.33, 0.00},
164 { 27.26, 26.28, 25.30, 24.31, 23.31, 22.31, 21.30, 20.29, 19.26, 18.24,
165 17.20, 16.16, 15.11, 14.05, 13.00, 11.93, 10.87, 9.80, 8.74, 0.00},
167 { 0.00, 6.30, 5.31, 4.25, 3.19, 2.12, 1.06, 0.00, -1.06, -2.12,
168 -3.19, -4.25, -5.31, -6.30, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00},
170 { -8.74, -9.80, -10.87, -11.93, -13.00, -14.05, -15.11, -16.16, -17.20, -18.24,
171 -19.26, -20.29, -21.30, -22.31, -23.31, -24.31, -25.30, -26.28, -27.26, 0.00},
173 {-12.33, -29.24, -30.19, -31.13, -32.05, -32.96, -33.87, -34.76, -35.65, -36.53,
174 -37.40, -38.25, -39.11, -39.94, -40.77, -41.59, -42.40, -43.20, -43.99, 0.00}
178 const Float_t AliTOFGeometry::fgkHeights[kNPlates][kMaxNstrip] = {
179 {-8.2, -7.5, -8.2, -7.7, -8.1, -7.6, -7.7, -7.7, -7.7, -7.7,
180 -7.5, -7.2, -7.3, -7.5, -7.6, -7.8, -8.3, -9.3, -3.1, 0.0},
182 {-7.9, -8.1, -8.5, -9.0, -10.1, -3.9, -5.9, -7.7, -10.1, -3.6,
183 -5.8, -8.0, -10.4, -4.4, -7.2, -10.2, -4.6, -7.4, -10.4, 0.0},
185 {-2.5, -10.4, -5.0, -9.9, -4.8, -9.9, -4.7, -10.2, -4.7, -9.9,
186 -4.8, -9.9, -5.0, -10.4, -2.5, 0.0, 0.0, 0.0, 0.0, 0.0},
188 {-10.4, -7.4, -4.6, -10.2, -7.2, -4.4, -10.4, -8.0, -5.8, -3.6,
189 -10.1, -7.7, -5.9, -3.9, -10.1, -9.0, -8.5, -8.1, -7.9, 0.0},
191 { -3.1, -9.3, -8.3, -7.8, -7.6, -7.5, -7.3, -7.2, -7.5, -7.7,
192 -7.7, -7.7, -7.7, -7.6, -8.1, -7.7, -8.2, -7.5, -8.2, 0.0}
196 const Float_t AliTOFGeometry::fgkHeights[kNPlates][kMaxNstrip] = {
197 { -8.405, -10.885, -8.405, -7.765, -8.285, -7.745, -7.865, -7.905, -7.895, -7.885,
198 -7.705, -7.395, -7.525, -7.645, -11.285, -10.355, -8.365, -9.385, -3.255, 0.000 },
199 { -7.905, -8.235, -8.605, -9.045, -10.205, -3.975, -5.915, -7.765, -10.205, -3.635,
200 -5.885, -8.005, -10.505, -4.395, -7.325, -10.235, -4.655, -7.495, -10.515, 0.000 },
201 { -2.705, -10.645, -5.165, -10.095, -4.995, -10.815, -4.835, -10.385, -4.835, -10.815,
202 -4.995, -10.095, -5.165, -10.645, -2.705, 0.000, 0.000, 0.000, 0.000, 0.000 },
203 { -10.515, -7.495, -4.655, -10.235, -7.325, -4.395, -10.505, -8.005, -5.885, -3.635,
204 -10.205, -7.765, -5.915, -3.975, -10.205, -9.045, -8.605, -8.235, -7.905, 0.000 },
205 { -3.255, -9.385, -8.365, -10.355, -11.285, -7.645, -7.525, -7.395, -7.705, -7.885,
206 -7.895, -7.905, -7.865, -7.745, -8.285, -7.765, -8.405, -10.885, -8.405, 0.000 }
211 const Float_t AliTOFGeometry::fgkHeights[kNPlates][kMaxNstrip] = {
212 { -8.405, -7.725, -8.405, -7.765, -8.285, -7.745, -7.865, -7.905, -7.895, -7.885,
213 -7.705, -7.395, -7.525, -7.645, -7.835, -7.965, -8.365, -9.385, -3.255, 0.000 },
214 { -7.905, -8.235, -8.605, -9.045, -10.205, -3.975, -5.915, -7.765, -10.205, -3.635,
215 -5.885, -8.005, -10.505, -4.395, -7.325, -10.235, -4.655, -7.495, -10.515, 0.000 },
216 { -2.705, -10.645, -5.165, -10.095, -4.995, -10.085, -4.835, -10.385, -4.835, -10.085,
217 -4.995, -10.095, -5.165, -10.645, -2.705, 0.000, 0.000, 0.000, 0.000, 0.000 },
218 {-10.515, -7.495, -4.655, -10.235, -7.325, -4.395, -10.505, -8.005, -5.885, -3.635,
219 -10.205, -7.765, -5.915, -3.975, -10.205, -9.045, -8.605, -8.235, -7.905, 0.000 },
220 { -3.255, -9.385, -8.365, -7.965, -7.835, -7.645, -7.525, -7.395, -7.705, -7.885,
221 -7.895, -7.905, -7.865, -7.745, -8.285, -7.765, -8.405, -7.725, -8.405, 0.000 }
226 const Float_t AliTOFGeometry::fgkDistances[kNPlates][kMaxNstrip] = {
227 { 364.14, 354.88, 344.49, 335.31, 325.44, 316.51, 307.11, 297.91, 288.84, 279.89,
228 271.20, 262.62, 253.84, 245.20, 236.56, 228.06, 219.46, 210.63, 206.09, 0.00 },
229 { 194.57, 186.38, 178.25, 170.13, 161.78, 156.62, 148.10, 139.72, 131.23, 125.87,
230 117.61, 109.44, 101.29, 95.46, 87.36, 79.37, 73.17, 65.33, 57.71, 0.00 },
231 { 49.28, 41.35, 35.37, 27.91, 21.20, 13.94, 7.06, 0.00, -7.06, -13.94,
232 -21.20, -27.91, -35.37, -41.35, -49.28, 0.00, 0.00, 0.00, 0.00, 0.00 },
233 { -57.71, -65.33, -73.17, -79.37, -87.36, -95.46, -101.29, -109.44, -117.61, -125.87,
234 -131.23, -139.72, -148.10, -156.62, -161.78, -170.13, -178.25, -186.38, -194.57, 0.00 },
235 {-206.09, -210.63, -219.46, -228.06, -236.56, -245.20, -253.84, -262.62, -271.20, -279.89,
236 -288.84, -297.91, -307.11, -316.51, -325.44, -335.31, -344.49, -354.88, -364.14, 0.00 }
240 const Float_t AliTOFGeometry::fgkDistances[kNPlates][kMaxNstrip] = {
241 { 364.1, 354.9, 344.5, 335.4, 325.5, 316.6, 307.2, 298.0, 288.9, 280.0,
242 271.3, 262.7, 254.0, 244.8, 236.1, 227.7, 219.1, 210.3, 205.7, 0.0},
244 { 194.2, 186.1, 177.9, 169.8, 161.5, 156.3, 147.8, 139.4, 130.9, 125.6,
245 117.3, 109.2, 101.1, 95.3, 87.1, 79.2, 73.0, 65.1, 57.6, 0.0},
247 { 49.5, 41.3, 35.3, 27.8, 21.2, 13.9, 7.0, 0.0, -7.0, -13.9,
248 -21.2, -27.8, -35.3, -41.3, -49.5, 0.0, 0.0, 0.0, 0.0, 0.0},
250 { -57.6, -65.1, -73.0, -79.2, -87.1, -95.3, -101.1, -109.2, -117.3, -125.6,
251 -130.9, -139.4, -147.8, -156.3, -161.5, -169.8, -177.9, -186.1, -194.2, 0.0},
253 {-205.7, -210.3, -219.1, -227.7, -236.1, -244.8, -254.0, -262.7, -271.3, -280.0,
254 -288.9, -298.0, -307.2, -316.6, -325.5, -335.4, -344.5, -354.9, -364.1, 0.0}
257 //_____________________________________________________________________________
258 AliTOFGeometry::AliTOFGeometry():
262 // AliTOFGeometry default constructor
267 //_____________________________________________________________________________
268 AliTOFGeometry::~AliTOFGeometry()
271 // AliTOFGeometry destructor
274 //_____________________________________________________________________________
275 void AliTOFGeometry::ImportGeometry(){
276 TGeoManager::Import("geometry.root");
278 //_____________________________________________________________________________
279 void AliTOFGeometry::GetPosPar(Int_t *det, Float_t *pos) const
282 // Returns space point coor (x,y,z) (cm) for Detector
283 // Indices (iSect,iPlate,iStrip,iPadX,iPadZ)
291 //_____________________________________________________________________________
292 void AliTOFGeometry::GetDetID( Float_t *pos, Int_t *det) const
295 // Returns Detector Indices (iSect,iPlate,iStrip,iPadX,iPadZ)
296 // space point coor (x,y,z) (cm)
299 det[0]=GetSector(pos);
300 det[1]=GetPlate(pos);
301 det[2]=GetStrip(pos);
306 //_____________________________________________________________________________
308 void AliTOFGeometry::DetToStripRF(Int_t nPadX, Int_t nPadZ, Float_t &x, Float_t &z) const
311 // Returns the local coordinates (x, z) in strip reference frame
312 // for the bottom corner of the pad number (nPadX, nPadZ)
315 const Float_t xCenterStrip = kNpadX * fgkXPad / 2.;
316 const Float_t zCenterStrip = kNpadZ * fgkZPad / 2.;
318 const Float_t xCenterPad = nPadX*fgkXPad + fgkXPad / 2.;
319 const Float_t zCenterPad = nPadZ*fgkZPad + fgkZPad / 2.;
321 x = xCenterPad - xCenterStrip;
322 z = zCenterPad - zCenterStrip;
326 x = (nPadX - kNpadX*0.5) * fgkXPad;
327 z = (nPadZ - kNpadZ*0.5) * fgkZPad;
331 //_____________________________________________________________________________
332 Float_t AliTOFGeometry::DistanceToPadPar(Int_t *det, const Float_t * const pos, Float_t *dist3d) const
335 // Returns distance of space point with coor pos (x,y,z) (cm) wrt
336 // pad with Detector Indices idet (iSect,iPlate,iStrip,iPadX,iPadZ)
339 //Transform pos into Sector Frame
345 Float_t radius = TMath::Sqrt(x*x+y*y);
346 //Float_t phi=TMath::ATan(y/x);
347 //if(phi<0) phi = k2PI+phi; //2.*TMath::Pi()+phi;
348 Float_t phi = TMath::Pi()+TMath::ATan2(-y,-x);
349 // Get the local angle in the sector philoc
350 Float_t angle = phi*kRaddeg-( Int_t (kRaddeg*phi/fgkPhiSec) + 0.5)*fgkPhiSec;
351 Float_t xs = radius*TMath::Cos(angle/kRaddeg);
352 Float_t ys = radius*TMath::Sin(angle/kRaddeg);
355 // Do the same for the selected pad
360 Float_t padRadius = TMath::Sqrt(g[0]*g[0]+g[1]*g[1]);
361 //Float_t padPhi = TMath::ATan(g[1]/g[0]);
362 //if(padPhi<0) padPhi = k2Pi + padPhi;
363 Float_t padPhi = TMath::Pi()+TMath::ATan2(-g[1],-g[0]);
365 // Get the local angle in the sector philoc
366 Float_t padAngle = padPhi*kRaddeg-( Int_t (padPhi*kRaddeg/fgkPhiSec)+ 0.5) * fgkPhiSec;
367 Float_t padxs = padRadius*TMath::Cos(padAngle/kRaddeg);
368 Float_t padys = padRadius*TMath::Sin(padAngle/kRaddeg);
369 Float_t padzs = g[2];
371 //Now move to local pad coordinate frame. Translate:
373 Float_t xt = xs-padxs;
374 Float_t yt = ys-padys;
375 Float_t zt = zs-padzs;
378 Float_t alpha = GetAngles(det[1],det[2]);
379 Float_t xr = xt*TMath::Cos(alpha/kRaddeg)+zt*TMath::Sin(alpha/kRaddeg);
381 Float_t zr = -xt*TMath::Sin(alpha/kRaddeg)+zt*TMath::Cos(alpha/kRaddeg);
383 Float_t dist = TMath::Sqrt(xr*xr+yr*yr+zr*zr);
394 //_____________________________________________________________________________
395 Bool_t AliTOFGeometry::IsInsideThePadPar(Int_t *det, const Float_t * const pos) const
398 // Returns true if space point with coor pos (x,y,z) (cm) falls
399 // inside pad with Detector Indices idet (iSect,iPlate,iStrip,iPadX,iPadZ)
402 Bool_t isInside=false;
405 const Float_t khhony = 1.0 ; // heigth of HONY Layer
406 const Float_t khpcby = 0.08 ; // heigth of PCB Layer
407 const Float_t khrgly = 0.055 ; // heigth of RED GLASS Layer
408 const Float_t khglfy = 0.285 ; // heigth of GLASS+FISHLINE Layer
409 const Float_t khcpcby = 0.16 ; // heigth of PCB Central Layer
410 //const Float_t kwcpcbz = 12.4 ; // z dimension of PCB Central Layer
411 const Float_t khstripy = 2.*khhony+2.*khpcby+4.*khrgly+2.*khglfy+khcpcby;//3.11
412 //const Float_t kwstripz = kwcpcbz;
413 //const Float_t klstripx = fgkStripLength;
416 const Float_t kPadDepth = 0.5;//0.05;//0.11;//0.16;// // heigth of Sensitive Layer
418 //Transform pos into Sector Frame
424 Float_t radius = TMath::Sqrt(x*x+y*y);
425 Float_t phi = TMath::Pi()+TMath::ATan2(-y,-x);
427 // Get the local angle in the sector philoc
428 Float_t angle = phi*kRaddeg-( Int_t (kRaddeg*phi/fgkPhiSec) + 0.5) *fgkPhiSec;
429 Float_t xs = radius*TMath::Cos(angle/kRaddeg);
430 Float_t ys = radius*TMath::Sin(angle/kRaddeg);
433 // Do the same for the selected pad
438 Float_t padRadius = TMath::Sqrt(g[0]*g[0]+g[1]*g[1]);
439 Float_t padPhi = TMath::Pi()+TMath::ATan2(-g[1],-g[0]);
441 // Get the local angle in the sector philoc
442 Float_t padAngle = padPhi*kRaddeg-( Int_t (padPhi*kRaddeg/fgkPhiSec)+ 0.5) * fgkPhiSec;
443 Float_t padxs = padRadius*TMath::Cos(padAngle/kRaddeg);
444 Float_t padys = padRadius*TMath::Sin(padAngle/kRaddeg);
445 Float_t padzs = g[2];
447 //Now move to local pad coordinate frame. Translate:
449 Float_t xt = xs-padxs;
450 Float_t yt = ys-padys;
451 Float_t zt = zs-padzs;
455 Float_t alpha = GetAngles(det[1],det[2]);
456 Float_t xr = xt*TMath::Cos(alpha/kRaddeg)+zt*TMath::Sin(alpha/kRaddeg);
458 Float_t zr = -xt*TMath::Sin(alpha/kRaddeg)+zt*TMath::Cos(alpha/kRaddeg);
460 if(TMath::Abs(xr)<=kPadDepth*0.5 && TMath::Abs(yr)<= (fgkXPad*0.5) && TMath::Abs(zr)<= (fgkZPad*0.5))
465 //_____________________________________________________________________________
466 Bool_t AliTOFGeometry::IsInsideThePad(TGeoHMatrix *mat, const Float_t * const pos, Float_t *dist3d) const
469 // Returns true if space point with coor pos (x,y,z) [cm] falls inside
470 // pad identified by the matrix mat. In case dist3d!=0, dist3d vector
471 // has been filled with the 3D distance between the impact point on
472 // the pad and the pad centre (in the reference frame of the TOF pad
473 // identified by the matrix mat).
476 const Float_t kPadDepth = 0.5; // heigth of Sensitive Layer
483 // from ALICE global reference system
484 // towards TOF pad reference system
485 Double_t posl[3] = {0., 0., 0.};
486 mat->MasterToLocal(posg,posl);
488 Float_t xr = posl[0];
489 Float_t yr = posl[1];
490 Float_t zr = posl[2];
492 Bool_t isInside = false;
493 if (TMath::Abs(yr)<= kPadDepth*0.5 &&
494 TMath::Abs(xr)<= fgkXPad*0.5 &&
495 TMath::Abs(zr)<= fgkZPad*0.5)
499 //Double_t padl[3] = {0., 0., 0.};
500 dist3d[0] = posl[0]/* - padl[0]*/;
501 dist3d[1] = posl[1]/* - padl[1]*/;
502 dist3d[2] = posl[2]/* - padl[2]*/;
505 Double_t padg[3] = {0., 0., 0.};
506 // from TOF pad local reference system
507 // towards ALICE global reference system
508 TGeoHMatrix inverse = mat->Inverse();
509 inverse.MasterToLocal(padl,padg);
511 // returns the 3d distance
512 // between the impact point on the pad
513 // and the pad centre (in the ALICE global reference frame)
514 dist3d[0] = posg[0] - padg[0];
515 dist3d[1] = posg[1] - padg[1];
516 dist3d[2] = posg[2] - padg[2];
523 //_____________________________________________________________________________
524 void AliTOFGeometry::GetVolumePath(const Int_t * const ind, Char_t *path ) {
525 //--------------------------------------------------------------------
526 // This function returns the colume path of a given pad
527 //--------------------------------------------------------------------
528 Int_t sector = ind[0];
530 const Int_t kSize = 100;
532 Char_t string1[kSize];
533 Char_t string2[kSize];
534 Char_t string3[kSize];
539 snprintf(string1,kSize,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",icopy,icopy);
543 if( iplate==0) icopy=istrip;
544 if( iplate==1) icopy=istrip+NStripC();
545 if( iplate==2) icopy=istrip+NStripC()+NStripB();
546 if( iplate==3) icopy=istrip+NStripC()+NStripB()+NStripA();
547 if( iplate==4) icopy=istrip+NStripC()+2*NStripB()+NStripA();
549 snprintf(string2,kSize,"FTOA_0/FLTA_0/FSTR_%i",icopy);
550 if(fHoles && (sector==13 || sector==14 || sector==15)){
551 if(iplate<2) snprintf(string2,kSize,"FTOB_0/FLTB_0/FSTR_%i",icopy);
552 if(iplate>2) snprintf(string2,kSize,"FTOC_0/FLTC_0/FSTR_%i",icopy);
555 Int_t padz = ind[3]+1;
556 Int_t padx = ind[4]+1;
557 snprintf(string3,kSize,"FPCB_1/FSEN_1/FSEZ_%i/FPAD_%i",padz,padx);
558 snprintf(path,2*kSize,"%s/%s/%s",string1,string2,string3);
561 //_____________________________________________________________________________
562 void AliTOFGeometry::GetVolumePath(Int_t sector, Char_t *path ){
563 //--------------------------------------------------------------------
564 // This function returns the colume path of a given sector
565 //--------------------------------------------------------------------
567 const Int_t kSize = 100;
569 Char_t string[kSize];
571 Int_t icopy = sector;
573 snprintf(string,kSize,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",icopy,icopy);
574 snprintf(path,2*kSize,"%s",string);
577 //_____________________________________________________________________________
578 void AliTOFGeometry::GetVolumePath(Int_t sector, Int_t plate, Int_t strip, Char_t *path ) {
579 //--------------------------------------------------------------------
580 // This function returns the colume path of a given strip
581 //--------------------------------------------------------------------
583 const Int_t kSize = 100;
585 Char_t string1[kSize];
586 Char_t string2[kSize];
587 Char_t string3[kSize];
589 Int_t icopy = sector;
591 snprintf(string1,kSize,"/ALIC_1/B077_1/BSEGMO%i_1/BTOF%i_1",icopy,icopy);
593 if(plate==0) icopy=strip;
594 if(plate==1) icopy=strip+NStripC();
595 if(plate==2) icopy=strip+NStripC()+NStripB();
596 if(plate==3) icopy=strip+NStripC()+NStripB()+NStripA();
597 if(plate==4) icopy=strip+NStripC()+2*NStripB()+NStripA();
599 snprintf(string2,kSize,"FTOA_0/FLTA_0/FSTR_%i",icopy);
600 if(fHoles && (sector==13 || sector==14 || sector==15)){
601 if(plate<2) snprintf(string2,kSize,"FTOB_0/FLTB_0/FSTR_%i",icopy);
602 if(plate>2) snprintf(string2,kSize,"FTOC_0/FLTC_0/FSTR_%i",icopy);
605 snprintf(string3,kSize,"FPCB_1/FSEN_1");
606 snprintf(path,2*kSize,"%s/%s/%s",string1,string2,string3);
609 //_____________________________________________________________________________
610 void AliTOFGeometry::GetPos(Int_t *det, Float_t *pos)
613 // Returns space point coor (x,y,z) (cm) for Detector
614 // Indices (iSect,iPlate,iStrip,iPadX,iPadZ)
617 GetVolumePath(det,path);
619 printf("ERROR: no TGeo\n");
621 gGeoManager->cd(path);
623 global = *gGeoManager->GetCurrentMatrix();
624 const Double_t *tr = global.GetTranslation();
630 //_____________________________________________________________________________
631 Int_t AliTOFGeometry::GetPlate(const Float_t * const pos) const
634 // Returns the Plate index
636 const Float_t kInterCentrModBorder1 = 49.5;
637 const Float_t kInterCentrModBorder2 = 57.5;
638 const Float_t kExterInterModBorder1 = 196.0;
639 const Float_t kExterInterModBorder2 = 203.5;
641 const Float_t kLengthExInModBorder = 4.7;
642 const Float_t kLengthInCeModBorder = 7.0;
644 //const Float_t khAlWall = 0.1;
645 const Float_t kModuleWallThickness = 0.3;
646 //const Float_t kHoneycombLayerThickness = 1.5;
651 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
653 Int_t isector = GetSector(posLocal);
655 //AliError("Detector Index could not be determined");
659 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
661 {90., 90.+(isector+0.5)*fgkPhiSec,
663 90., (isector+0.5)*fgkPhiSec
665 Rotation(posLocal,angles);
667 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
668 Translation(posLocal,step);
670 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA = FLTA reference frame
678 Rotation(posLocal,angles);
680 Float_t yLocal = posLocal[1];
681 Float_t zLocal = posLocal[2];
683 Float_t deltaRhoLoc = (fgkRmax-fgkRmin)*0.5 - kModuleWallThickness + yLocal;
684 Float_t deltaZetaLoc = TMath::Abs(zLocal);
686 Float_t deltaRHOmax = 0.;
688 if (TMath::Abs(zLocal)>=kExterInterModBorder1 && TMath::Abs(zLocal)<=kExterInterModBorder2)
690 deltaRhoLoc -= kLengthExInModBorder;
691 deltaZetaLoc = kExterInterModBorder2-deltaZetaLoc;
692 deltaRHOmax = (fgkRmax - fgkRmin)*0.5 - kModuleWallThickness - 2.*kLengthExInModBorder; // old 5.35, new 4.8
694 if (deltaRhoLoc > deltaZetaLoc*deltaRHOmax/(kInterCentrModBorder2-kInterCentrModBorder1)) {
695 if (zLocal<0) iPlate = 0;
699 if (zLocal<0) iPlate = 1;
703 else if (TMath::Abs(zLocal)>=kInterCentrModBorder1 && TMath::Abs(zLocal)<=kInterCentrModBorder2)
705 deltaRhoLoc -= kLengthInCeModBorder;
706 deltaZetaLoc = deltaZetaLoc-kInterCentrModBorder1;
707 deltaRHOmax = (fgkRmax - fgkRmin)*0.5 - kModuleWallThickness - 2.*kLengthInCeModBorder; // old 0.39, new 0.2
709 if (deltaRhoLoc>deltaZetaLoc*deltaRHOmax/(kInterCentrModBorder2-kInterCentrModBorder1)) iPlate = 2;
711 if (zLocal<0) iPlate = 1;
716 if (zLocal>-fgkZlenA*0.5 && zLocal<-kExterInterModBorder2) iPlate = 0;
717 else if (zLocal>-kExterInterModBorder1 && zLocal<-kInterCentrModBorder2) iPlate = 1;
718 else if (zLocal>-kInterCentrModBorder1 && zLocal< kInterCentrModBorder1) iPlate = 2;
719 else if (zLocal> kInterCentrModBorder2 && zLocal< kExterInterModBorder1) iPlate = 3;
720 else if (zLocal> kExterInterModBorder2 && zLocal< fgkZlenA*0.5) iPlate = 4;
726 //_____________________________________________________________________________
727 Int_t AliTOFGeometry::GetSector(const Float_t * const pos) const
730 // Returns the Sector index
739 Float_t rho = TMath::Sqrt(x*x + y*y);
741 if (!((z>=-fgkZlenA*0.5 && z<=fgkZlenA*0.5) &&
742 (rho>=(fgkRmin) && rho<=(fgkRmax)))) {
743 //AliError("Detector Index could not be determined");
747 Float_t phi = TMath::Pi() + TMath::ATan2(-y,-x);
749 iSect = (Int_t) (phi*kRaddeg/fgkPhiSec);
754 //_____________________________________________________________________________
755 Int_t AliTOFGeometry::GetStrip(const Float_t * const pos) const
758 // Returns the Strip index
760 const Float_t khhony = 1.0 ; // heigth of HONY Layer
761 const Float_t khpcby = 0.08 ; // heigth of PCB Layer
762 const Float_t khrgly = 0.055 ; // heigth of RED GLASS Layer
763 const Float_t khglfy = 0.285 ; // heigth of GLASS+FISHLINE Layer
764 const Float_t khcpcby = 0.16 ; // heigth of PCB Central Layer
765 const Float_t kwcpcbz = 12.4 ; // z dimension of PCB Central Layer
766 const Float_t khstripy = 2.*khhony+2.*khpcby+4.*khrgly+2.*khglfy+khcpcby;//3.11
767 const Float_t kwstripz = kwcpcbz;
768 const Float_t klstripx = fgkStripLength;
773 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
774 AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
775 posLocal[0],posLocal[1],posLocal[2]));
777 Int_t isector = GetSector(posLocal);
779 //AliError("Detector Index could not be determined");
781 Int_t iplate = GetPlate(posLocal);
783 //AliError("Detector Index could not be determined");
801 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
803 {90., 90.+(isector+0.5)*fgkPhiSec,
805 90., (isector+0.5)*fgkPhiSec
807 Rotation(posLocal,angles);
808 AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
809 posLocal[0],posLocal[1],posLocal[2]));
811 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
812 Translation(posLocal,step);
813 AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
814 posLocal[0],posLocal[1],posLocal[2]));
816 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA = FLTA reference frame
824 Rotation(posLocal,angles);
825 AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
826 posLocal[0],posLocal[1],posLocal[2]));
828 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
830 for (Int_t istrip=0; istrip<nstrips; istrip++){
832 Float_t posLoc2[3]={posLocal[0],posLocal[1],posLocal[2]};
835 step[1] = GetHeights(iplate,istrip);
836 step[2] = -GetDistances(iplate,istrip);
837 Translation(posLoc2,step);
839 if (GetAngles(iplate,istrip) >0.) {
842 angles[2] = 90.+GetAngles(iplate,istrip);
844 angles[4] = GetAngles(iplate,istrip);
847 else if (GetAngles(iplate,istrip)==0.) {
855 else if (GetAngles(iplate,istrip) <0.) {
858 angles[2] = 90.+GetAngles(iplate,istrip);
860 angles[4] =-GetAngles(iplate,istrip);
863 Rotation(posLoc2,angles);
864 AliDebug(1,Form(" strip %2d: posLoc2[0] = %f, posLoc2[1] = %f, posLoc2[2] = %f ",
865 istrip, posLoc2[0],posLoc2[1],posLoc2[2]));
867 if ((TMath::Abs(posLoc2[0])<=klstripx*0.5) &&
868 (TMath::Abs(posLoc2[1])<=khstripy*0.5) &&
869 (TMath::Abs(posLoc2[2])<=kwstripz*0.5)) {
872 for (Int_t jj=0; jj<3; jj++) posLocal[jj]=posLoc2[jj];
873 AliDebug(2,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
874 posLocal[0],posLocal[1],posLocal[2]));
876 AliDebug(2,Form(" GetAngles(%1i,%2i) = %f, pos[0] = %f, pos[1] = %f, pos[2] = %f",
877 iplate, istrip, GetAngles(iplate,istrip), pos[0], pos[1], pos[2]));
881 if (totStrip>1) AliInfo(Form("total strip number found %2i",totStrip));
888 //_____________________________________________________________________________
889 Int_t AliTOFGeometry::GetPadZ(const Float_t * const pos) const
892 // Returns the Pad index along Z
894 //const Float_t klsensmx = kNpadX*fgkXPad; // length of Sensitive Layer
895 //const Float_t khsensmy = 0.05;//0.11;//0.16;// heigth of Sensitive Layer
896 //const Float_t kwsensmz = kNpadZ*fgkZPad; // width of Sensitive Layer
901 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
903 Int_t isector = GetSector(posLocal);
905 //AliError("Detector Index could not be determined");
907 Int_t iplate = GetPlate(posLocal);
909 //AliError("Detector Index could not be determined");
911 Int_t istrip = GetStrip(posLocal);
913 //AliError("Detector Index could not be determined");
916 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
918 {90., 90.+(isector+0.5)*fgkPhiSec,
920 90., (isector+0.5)*fgkPhiSec
922 Rotation(posLocal,angles);
924 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
925 Translation(posLocal,step);
927 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA = FLTA reference frame
935 Rotation(posLocal,angles);
937 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
939 step[1] = GetHeights(iplate,istrip);
940 step[2] = -GetDistances(iplate,istrip);
941 Translation(posLocal,step);
943 if (GetAngles(iplate,istrip) >0.) {
946 angles[2] = 90.+GetAngles(iplate,istrip);
948 angles[4] = GetAngles(iplate,istrip);
951 else if (GetAngles(iplate,istrip)==0.) {
959 else if (GetAngles(iplate,istrip) <0.) {
962 angles[2] = 90.+GetAngles(iplate,istrip);
964 angles[4] =-GetAngles(iplate,istrip);
967 Rotation(posLocal,angles);
969 step[0] =-0.5*kNpadX*fgkXPad;
971 step[2] =-0.5*kNpadZ*fgkZPad;
972 Translation(posLocal,step);
974 iPadZ = (Int_t)(posLocal[2]/fgkZPad);
975 if (iPadZ==kNpadZ) iPadZ--;
976 else if (iPadZ>kNpadZ) iPadZ=-1;
981 //_____________________________________________________________________________
982 Int_t AliTOFGeometry::GetPadX(const Float_t * const pos) const
985 // Returns the Pad index along X
987 //const Float_t klsensmx = kNpadX*fgkXPad; // length of Sensitive Layer
988 //const Float_t khsensmy = 0.05;//0.11;//0.16;// heigth of Sensitive Layer
989 //const Float_t kwsensmz = kNpadZ*fgkZPad; // width of Sensitive Layer
994 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
996 Int_t isector = GetSector(posLocal);
998 //AliError("Detector Index could not be determined");
1000 Int_t iplate = GetPlate(posLocal);
1002 //AliError("Detector Index could not be determined");
1004 Int_t istrip = GetStrip(posLocal);
1006 //AliError("Detector Index could not be determined");
1009 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1010 Double_t angles[6] =
1011 {90., 90.+(isector+0.5)*fgkPhiSec,
1013 90., (isector+0.5)*fgkPhiSec
1015 Rotation(posLocal,angles);
1017 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
1018 Translation(posLocal,step);
1020 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA/B/C = FLTA/B/C reference frame
1028 Rotation(posLocal,angles);
1030 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
1032 step[1] = GetHeights(iplate,istrip);
1033 step[2] = -GetDistances(iplate,istrip);
1034 Translation(posLocal,step);
1036 if (GetAngles(iplate,istrip) >0.) {
1039 angles[2] = 90.+GetAngles(iplate,istrip);
1041 angles[4] = GetAngles(iplate,istrip);
1044 else if (GetAngles(iplate,istrip)==0.) {
1052 else if (GetAngles(iplate,istrip) <0.) {
1055 angles[2] = 90.+GetAngles(iplate,istrip);
1057 angles[4] =-GetAngles(iplate,istrip);
1060 Rotation(posLocal,angles);
1062 step[0] =-0.5*kNpadX*fgkXPad;
1064 step[2] =-0.5*kNpadZ*fgkZPad;
1065 Translation(posLocal,step);
1067 iPadX = (Int_t)(posLocal[0]/fgkXPad);
1068 if (iPadX==kNpadX) iPadX--;
1069 else if (iPadX>kNpadX) iPadX=-1;
1074 //_____________________________________________________________________________
1075 Float_t AliTOFGeometry::GetX(const Int_t * const det) const
1078 // Returns X coordinate (cm)
1081 Int_t isector = det[0];
1082 Int_t iplate = det[1];
1083 Int_t istrip = det[2];
1084 Int_t ipadz = det[3];
1085 Int_t ipadx = det[4];
1088 // Find out distance d on the plane wrt median phi:
1089 Float_t d = (ipadx+0.5-kNpadX*0.5)*fgkXPad;
1091 // The radius r in xy plane:
1092 //Float_t r = (fgkRmin+fgkRmax)*0.5-0.01+GetHeights(iplate,istrip)+
1093 // (ipadz-0.5)*fgkZPad*TMath::Sin(GetAngles(iplate,istrip)/kRaddeg)-0.25; ???
1094 Float_t r = (fgkRmin+fgkRmax)*0.5-0.01+GetHeights(iplate,istrip)+
1095 (ipadz-0.5)*fgkZPad*TMath::Sin(GetAngles(iplate,istrip)/kRaddeg);
1097 // local azimuthal angle in the sector philoc
1098 Float_t philoc = TMath::ATan(d/r);
1099 //if(philoc<0.) philoc = k2PI + philoc;
1101 // azimuthal angle in the global frame phi
1102 Float_t phi = philoc*kRaddeg+(isector+0.5)*fgkPhiSec;
1104 Float_t xCoor = r/TMath::Cos(philoc)*TMath::Cos(phi/kRaddeg);
1107 // Pad reference frame -> FSTR reference frame
1108 Float_t posLocal[3] = {0., 0., 0.};
1109 Float_t step[3] = {-(ipadx+0.5)*fgkXPad, 0., -(ipadz+0.5)*fgkZPad};
1110 Translation(posLocal,step);
1112 step[0] = kNpadX*0.5*fgkXPad;
1114 step[2] = kNpadZ*0.5*fgkZPad;
1116 Float_t posLocal[3] = {(ipadx+0.5)*fgkXPad, 0., (ipadz+0.5)*fgkZPad};
1117 Float_t step[3]= {kNpadX*0.5*fgkXPad, 0., kNpadZ*0.5*fgkZPad};
1119 Translation(posLocal,step);
1121 // FSTR reference frame -> FTOA/B/C = FLTA/B/C reference frame
1122 Double_t angles[6] = {0.,0.,0.,0.,0.,0.};
1123 if (GetAngles(iplate,istrip) >0.) {
1126 angles[2] = 90.+GetAngles(iplate,istrip);
1128 angles[4] = GetAngles(iplate,istrip);
1131 else if (GetAngles(iplate,istrip)==0.) {
1139 else if (GetAngles(iplate,istrip) <0.) {
1142 angles[2] = 90.+GetAngles(iplate,istrip);
1144 angles[4] =-GetAngles(iplate,istrip);
1148 InverseRotation(posLocal,angles);
1151 step[1] = -GetHeights(iplate,istrip);
1152 step[2] = GetDistances(iplate,istrip);
1153 Translation(posLocal,step);
1155 // FTOA = FLTA reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1163 InverseRotation(posLocal,angles);
1165 // B071/B074/B075 = BTO1/2/3 reference frame -> ALICE reference frame
1168 step[2] = -((fgkRmax+fgkRmin)*0.5);
1169 Translation(posLocal,step);
1172 angles[1] = 90.+(isector+0.5)*fgkPhiSec;
1176 angles[5] = (isector+0.5)*fgkPhiSec;
1178 InverseRotation(posLocal,angles);
1180 Float_t xCoor = posLocal[0];
1185 //_____________________________________________________________________________
1186 Float_t AliTOFGeometry::GetY(const Int_t * const det) const
1189 // Returns Y coordinate (cm)
1192 Int_t isector = det[0];
1193 Int_t iplate = det[1];
1194 Int_t istrip = det[2];
1195 Int_t ipadz = det[3];
1196 Int_t ipadx = det[4];
1199 // Find out distance d on the plane wrt median phi:
1200 Float_t d = (ipadx+0.5-kNpadX*0.5)*fgkXPad;
1202 // The radius r in xy plane:
1203 //Float_t r = (fgkRmin+fgkRmax)*0.5-0.01+GetHeights(iplate,istrip)+
1204 // (ipadz-0.5)*fgkZPad*TMath::Sin(GetAngles(iplate,istrip)/kRaddeg)-0.25; ???
1205 Float_t r = (fgkRmin+fgkRmax)*0.5-0.01+GetHeights(iplate,istrip)+
1206 (ipadz-0.5)*fgkZPad*TMath::Sin(GetAngles(iplate,istrip)/kRaddeg);
1208 // local azimuthal angle in the sector philoc
1209 Float_t philoc = TMath::ATan(d/r);
1210 //if(philoc<0.) philoc = k2PI + philoc;
1212 // azimuthal angle in the global frame phi
1213 Float_t phi = philoc*kRaddeg+(isector+0.5)*fgkPhiSec;
1215 Float_t yCoor = r/TMath::Cos(philoc)*TMath::Sin(phi/kRaddeg);
1218 // Pad reference frame -> FSTR reference frame
1219 Float_t posLocal[3] = {0., 0., 0.};
1220 Float_t step[3] = {-(ipadx+0.5)*fgkXPad, 0., -(ipadz+0.5)*fgkZPad};
1221 Translation(posLocal,step);
1223 step[0] = kNpadX*0.5*fgkXPad;
1225 step[2] = kNpadZ*0.5*fgkZPad;
1227 Float_t posLocal[3] = {(ipadx+0.5)*fgkXPad, 0., (ipadz+0.5)*fgkZPad};
1228 Float_t step[3]= {kNpadX*0.5*fgkXPad, 0., kNpadZ*0.5*fgkZPad};
1230 Translation(posLocal,step);
1232 // FSTR reference frame -> FTOA/B/C = FLTA/B/C reference frame
1234 Double_t angles[6] = {0.,0.,0.,0.,0.,0.};
1235 if (GetAngles(iplate,istrip) >0.) {
1238 angles[2] = 90.+GetAngles(iplate,istrip);
1240 angles[4] = GetAngles(iplate,istrip);
1243 else if (GetAngles(iplate,istrip)==0.) {
1251 else if (GetAngles(iplate,istrip) <0.) {
1254 angles[2] = 90.+GetAngles(iplate,istrip);
1256 angles[4] =-GetAngles(iplate,istrip);
1260 InverseRotation(posLocal,angles);
1263 step[1] = -GetHeights(iplate,istrip);
1264 step[2] = GetDistances(iplate,istrip);
1265 Translation(posLocal,step);
1267 // FTOA = FLTA reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1275 InverseRotation(posLocal,angles);
1277 // B071/B074/B075 = BTO1/2/3 reference frame -> ALICE reference frame
1280 step[2] = -((fgkRmax+fgkRmin)*0.5);
1281 Translation(posLocal,step);
1284 angles[1] = 90.+(isector+0.5)*fgkPhiSec;
1288 angles[5] = (isector+0.5)*fgkPhiSec;
1290 InverseRotation(posLocal,angles);
1292 Float_t yCoor = posLocal[1];
1298 //_____________________________________________________________________________
1299 Float_t AliTOFGeometry::GetZ(const Int_t * const det) const
1302 // Returns Z coordinate (cm)
1305 Int_t isector = det[0];
1306 Int_t iplate = det[1];
1307 Int_t istrip = det[2];
1308 Int_t ipadz = det[3];
1309 Int_t ipadx = det[4];
1312 Float_t zCoor = GetDistances(iplate,istrip) +
1313 (0.5-ipadz) * fgkZPad * TMath::Cos(GetAngles(iplate,istrip)*kDegrad);
1316 // Pad reference frame -> FSTR reference frame
1317 Float_t posLocal[3] = {0., 0., 0.};
1318 Float_t step[3] = {-(ipadx+0.5)*fgkXPad, 0., -(ipadz+0.5)*fgkZPad};
1319 Translation(posLocal,step);
1321 step[0] = kNpadX*0.5*fgkXPad;
1323 step[2] = kNpadZ*0.5*fgkZPad;
1325 Float_t posLocal[3] = {(ipadx+0.5)*fgkXPad, 0., (ipadz+0.5)*fgkZPad};
1326 Float_t step[3]= {kNpadX*0.5*fgkXPad, 0., kNpadZ*0.5*fgkZPad};
1328 Translation(posLocal,step);
1330 // FSTR reference frame -> FTOA/B/C = FLTA/B/C reference frame
1331 Double_t angles[6] = {0.,0.,0.,0.,0.,0.};
1332 if (GetAngles(iplate,istrip) >0.) {
1335 angles[2] = 90.+GetAngles(iplate,istrip);
1337 angles[4] = GetAngles(iplate,istrip);
1340 else if (GetAngles(iplate,istrip)==0.) {
1348 else if (GetAngles(iplate,istrip) <0.) {
1351 angles[2] = 90.+GetAngles(iplate,istrip);
1353 angles[4] =-GetAngles(iplate,istrip);
1357 InverseRotation(posLocal,angles);
1360 step[1] = -GetHeights(iplate,istrip);
1361 step[2] = GetDistances(iplate,istrip);
1362 Translation(posLocal,step);
1364 // FTOA = FLTA reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1372 InverseRotation(posLocal,angles);
1374 // B071/B074/B075 = BTO1/2/3 reference frame -> ALICE reference frame
1377 step[2] = -((fgkRmax+fgkRmin)*0.5);
1378 Translation(posLocal,step);
1381 angles[1] = 90.+(isector+0.5)*fgkPhiSec;
1385 angles[5] = (isector+0.5)*fgkPhiSec;
1387 InverseRotation(posLocal,angles);
1389 Float_t zCoor = posLocal[2];
1394 //_____________________________________________________________________________
1396 void AliTOFGeometry::DetToSectorRF(Int_t vol[5], Double_t coord[4][3])
1399 // Returns the local coordinates (x, y, z) in sector reference frame
1400 // for the 4 corners of each sector pad (vol[1], vol[2], vol[3], vol[4])
1403 if (!gGeoManager) printf("ERROR: no TGeo\n");
1405 // ALICE -> TOF Sector
1407 GetVolumePath(vol[0],path1);
1408 gGeoManager->cd(path1);
1409 TGeoHMatrix aliceToSector;
1410 aliceToSector = *gGeoManager->GetCurrentMatrix();
1412 // TOF Sector -> ALICE
1413 //TGeoHMatrix sectorToALICE = aliceToSector.Inverse();
1417 GetVolumePath(vol,path2);
1418 gGeoManager->cd(path2);
1419 TGeoHMatrix aliceToPad;
1420 aliceToPad = *gGeoManager->GetCurrentMatrix();
1423 TGeoHMatrix padToALICE = aliceToPad.Inverse();
1425 // TOF Pad -> TOF Sector
1426 TGeoHMatrix padToSector = padToALICE*aliceToSector;
1428 // TOF Sector -> TOF Pad
1429 //TGeoHMatrix sectorToPad = sectorToALICE*aliceToPad;
1431 // coordinates of the pad bottom corner
1432 Double_t **cornerPad = new Double_t*[4];
1433 for (Int_t ii=0; ii<4; ii++) cornerPad[ii] = new Double_t[3];
1435 cornerPad[0][0] = -fgkXPad/2.;
1436 cornerPad[0][1] = 0.;
1437 cornerPad[0][2] = -fgkZPad/2.;
1439 cornerPad[1][0] = fgkXPad/2.;
1440 cornerPad[1][1] = 0.;
1441 cornerPad[1][2] = -fgkZPad/2.;
1443 cornerPad[2][0] = fgkXPad/2.;
1444 cornerPad[2][1] = 0.;
1445 cornerPad[2][2] = fgkZPad/2.;
1447 cornerPad[3][0] = -fgkXPad/2.;
1448 cornerPad[3][1] = 0.;
1449 cornerPad[3][2] = fgkZPad/2.;
1451 for(Int_t aa=0; aa<4; aa++) for(Int_t bb=0; bb<3; bb++) coord[aa][bb]=0.;
1453 for (Int_t jj=0; jj<4; jj++) padToSector.MasterToLocal(&cornerPad[jj][0], &coord[jj][0]);
1455 delete [] cornerPad;
1457 //sectorToPad.LocalToMaster(cornerPad, coord);
1460 //_____________________________________________________________________________
1461 Float_t AliTOFGeometry::GetPadDx(const Float_t * const pos)
1464 // Returns the x coordinate in the Pad reference frame
1469 Float_t posLocal[3];
1470 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
1472 Int_t isector = GetSector(posLocal);
1474 //AliError("Detector Index could not be determined");
1476 Int_t iplate = GetPlate(posLocal);
1478 //AliError("Detector Index could not be determined");
1480 Int_t istrip = GetStrip(posLocal);
1482 //AliError("Detector Index could not be determined");
1484 Int_t ipadz = GetPadZ(posLocal);
1486 //AliError("Detector Index could not be determined");
1488 Int_t ipadx = GetPadX(posLocal);
1490 //AliError("Detector Index could not be determined");
1493 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1494 Double_t angles[6] =
1495 {90., 90.+(isector+0.5)*fgkPhiSec,
1497 90., (isector+0.5)*fgkPhiSec
1499 Rotation(posLocal,angles);
1501 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
1502 Translation(posLocal,step);
1504 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA/B/C = FLTA/B/C reference frame
1512 Rotation(posLocal,angles);
1514 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
1516 step[1] = GetHeights(iplate,istrip);
1517 step[2] = -GetDistances(iplate,istrip);
1518 Translation(posLocal,step);
1520 if (GetAngles(iplate,istrip) >0.) {
1523 angles[2] = 90.+GetAngles(iplate,istrip);
1525 angles[4] = GetAngles(iplate,istrip);
1528 else if (GetAngles(iplate,istrip)==0.) {
1536 else if (GetAngles(iplate,istrip) <0.) {
1539 angles[2] = 90.+GetAngles(iplate,istrip);
1541 angles[4] =-GetAngles(iplate,istrip);
1544 Rotation(posLocal,angles);
1546 step[0] =-0.5*kNpadX*fgkXPad;
1548 step[2] =-0.5*kNpadZ*fgkZPad;
1549 Translation(posLocal,step);
1551 step[0] = (ipadx+0.5)*fgkXPad;
1553 step[2] = (ipadz+0.5)*fgkZPad;
1554 Translation(posLocal,step);
1561 //_____________________________________________________________________________
1562 Float_t AliTOFGeometry::GetPadDy(const Float_t * const pos)
1565 // Returns the y coordinate in the Pad reference frame
1570 Float_t posLocal[3];
1571 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
1573 Int_t isector = GetSector(posLocal);
1575 //AliError("Detector Index could not be determined");
1577 Int_t iplate = GetPlate(posLocal);
1579 //AliError("Detector Index could not be determined");
1581 Int_t istrip = GetStrip(posLocal);
1583 //AliError("Detector Index could not be determined");
1585 Int_t ipadz = GetPadZ(posLocal);
1587 //AliError("Detector Index could not be determined");
1589 Int_t ipadx = GetPadX(posLocal);
1591 //AliError("Detector Index could not be determined");
1594 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1595 Double_t angles[6] =
1596 {90., 90.+(isector+0.5)*fgkPhiSec,
1598 90., (isector+0.5)*fgkPhiSec
1600 Rotation(posLocal,angles);
1602 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
1603 Translation(posLocal,step);
1605 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA/B/C = FLTA/B/C reference frame
1613 Rotation(posLocal,angles);
1615 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
1617 step[1] = GetHeights(iplate,istrip);
1618 step[2] = -GetDistances(iplate,istrip);
1619 Translation(posLocal,step);
1621 if (GetAngles(iplate,istrip) >0.) {
1624 angles[2] = 90.+GetAngles(iplate,istrip);
1626 angles[4] = GetAngles(iplate,istrip);
1629 else if (GetAngles(iplate,istrip)==0.) {
1637 else if (GetAngles(iplate,istrip) <0.) {
1640 angles[2] = 90.+GetAngles(iplate,istrip);
1642 angles[4] =-GetAngles(iplate,istrip);
1645 Rotation(posLocal,angles);
1647 step[0] =-0.5*kNpadX*fgkXPad;
1649 step[2] =-0.5*kNpadZ*fgkZPad;
1650 Translation(posLocal,step);
1652 step[0] = (ipadx+0.5)*fgkXPad;
1654 step[2] = (ipadz+0.5)*fgkZPad;
1655 Translation(posLocal,step);
1662 //_____________________________________________________________________________
1663 Float_t AliTOFGeometry::GetPadDz(const Float_t * const pos)
1666 // Returns the z coordinate in the Pad reference frame
1671 Float_t posLocal[3];
1672 for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
1674 Int_t isector = GetSector(posLocal);
1676 //AliError("Detector Index could not be determined");
1678 Int_t iplate = GetPlate(posLocal);
1680 //AliError("Detector Index could not be determined");
1682 Int_t istrip = GetStrip(posLocal);
1684 //AliError("Detector Index could not be determined");
1686 Int_t ipadz = GetPadZ(posLocal);
1688 //AliError("Detector Index could not be determined");
1690 Int_t ipadx = GetPadX(posLocal);
1692 //AliError("Detector Index could not be determined");
1695 // ALICE reference frame -> B071/B074/B075 = BTO1/2/3 reference frame
1696 Double_t angles[6] =
1697 {90., 90.+(isector+0.5)*fgkPhiSec,
1699 90., (isector+0.5)*fgkPhiSec
1701 Rotation(posLocal,angles);
1703 Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
1704 Translation(posLocal,step);
1706 // B071/B074/B075 = BTO1/2/3 reference frame -> FTOA/B/C = FLTA/B/C reference frame
1714 Rotation(posLocal,angles);
1716 // FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
1718 step[1] = GetHeights(iplate,istrip);
1719 step[2] = -GetDistances(iplate,istrip);
1720 Translation(posLocal,step);
1722 if (GetAngles(iplate,istrip) >0.) {
1725 angles[2] = 90.+GetAngles(iplate,istrip);
1727 angles[4] = GetAngles(iplate,istrip);
1730 else if (GetAngles(iplate,istrip)==0.) {
1738 else if (GetAngles(iplate,istrip) <0.) {
1741 angles[2] = 90.+GetAngles(iplate,istrip);
1743 angles[4] =-GetAngles(iplate,istrip);
1746 Rotation(posLocal,angles);
1748 step[0] =-0.5*kNpadX*fgkXPad;
1750 step[2] =-0.5*kNpadZ*fgkZPad;
1751 Translation(posLocal,step);
1753 step[0] = (ipadx+0.5)*fgkXPad;
1755 step[2] = (ipadz+0.5)*fgkZPad;
1756 Translation(posLocal,step);
1763 //_____________________________________________________________________________
1765 void AliTOFGeometry::Translation(Float_t *xyz, Float_t translationVector[3]) const
1768 // Return the vector xyz translated by translationVector vector
1773 for (ii=0; ii<3; ii++)
1774 xyz[ii] -= translationVector[ii];
1779 //_____________________________________________________________________________
1781 void AliTOFGeometry::Rotation(Float_t *xyz, Double_t rotationAngles[6]) const
1784 // Return the vector xyz rotated according to the rotationAngles angles
1789 TRotMatrix *matrix = new TRotMatrix("matrix","matrix", angles[0], angles[1],
1790 angles[2], angles[3],
1791 angles[4], angles[5]);
1794 for (ii=0; ii<6; ii++) rotationAngles[ii]*=kDegrad;
1796 Float_t xyzDummy[3] = {0., 0., 0.};
1798 for (ii=0; ii<3; ii++) {
1800 xyz[0]*TMath::Sin(rotationAngles[2*ii])*TMath::Cos(rotationAngles[2*ii+1]) +
1801 xyz[1]*TMath::Sin(rotationAngles[2*ii])*TMath::Sin(rotationAngles[2*ii+1]) +
1802 xyz[2]*TMath::Cos(rotationAngles[2*ii]);
1805 for (ii=0; ii<3; ii++) xyz[ii]=xyzDummy[ii];
1810 //_____________________________________________________________________________
1811 void AliTOFGeometry::InverseRotation(Float_t *xyz, Double_t rotationAngles[6]) const
1814 // Rotates the vector xyz acordint to the rotationAngles
1819 for (ii=0; ii<6; ii++) rotationAngles[ii]*=kDegrad;
1821 Float_t xyzDummy[3] = {0., 0., 0.};
1824 xyz[0]*TMath::Sin(rotationAngles[0])*TMath::Cos(rotationAngles[1]) +
1825 xyz[1]*TMath::Sin(rotationAngles[2])*TMath::Cos(rotationAngles[3]) +
1826 xyz[2]*TMath::Sin(rotationAngles[4])*TMath::Cos(rotationAngles[5]);
1829 xyz[0]*TMath::Sin(rotationAngles[0])*TMath::Sin(rotationAngles[1]) +
1830 xyz[1]*TMath::Sin(rotationAngles[2])*TMath::Sin(rotationAngles[3]) +
1831 xyz[2]*TMath::Sin(rotationAngles[4])*TMath::Sin(rotationAngles[5]);
1834 xyz[0]*TMath::Cos(rotationAngles[0]) +
1835 xyz[1]*TMath::Cos(rotationAngles[2]) +
1836 xyz[2]*TMath::Cos(rotationAngles[4]);
1838 for (ii=0; ii<3; ii++) xyz[ii]=xyzDummy[ii];
1843 //_____________________________________________________________________________
1845 Int_t AliTOFGeometry::GetIndex(const Int_t * const detId)
1847 //Retrieve calibration channel index
1848 Int_t isector = detId[0];
1849 if (isector >= kNSectors){
1850 printf("Wrong sector number in TOF (%d) !\n",isector);
1853 Int_t iplate = detId[1];
1854 if (iplate >= kNPlates){
1855 printf("Wrong plate number in TOF (%d) !\n",iplate);
1858 Int_t istrip = detId[2];
1859 Int_t stripOffset = GetStripNumberPerSM(iplate,istrip);
1860 if (stripOffset==-1) {
1861 printf("Wrong strip number per SM in TOF (%d) !\n",stripOffset);
1865 Int_t ipadz = detId[3];
1866 Int_t ipadx = detId[4];
1868 Int_t idet = ((2*(kNStripC+kNStripB)+kNStripA)*kNpadZ*kNpadX)*isector +
1869 (stripOffset*kNpadZ*kNpadX)+
1874 //_____________________________________________________________________________
1876 void AliTOFGeometry::GetVolumeIndices(Int_t index, Int_t *detId)
1879 // Retrieve volume indices from the calibration channel index
1882 detId[0] = index/NpadXStrip()/NStripXSector();
1884 Int_t dummyStripPerModule =
1885 ( index - ( NStripXSector()*NpadXStrip()*detId[0]) ) / NpadXStrip();
1886 if (dummyStripPerModule<kNStripC) {
1888 detId[2] = dummyStripPerModule;
1890 else if (dummyStripPerModule>=kNStripC && dummyStripPerModule<kNStripC+kNStripB) {
1892 detId[2] = dummyStripPerModule-kNStripC;
1894 else if (dummyStripPerModule>=kNStripC+kNStripB && dummyStripPerModule<kNStripC+kNStripB+kNStripA) {
1896 detId[2] = dummyStripPerModule-kNStripC-kNStripB;
1898 else if (dummyStripPerModule>=kNStripC+kNStripB+kNStripA && dummyStripPerModule<kNStripC+kNStripB+kNStripA+kNStripB) {
1900 detId[2] = dummyStripPerModule-kNStripC-kNStripB-kNStripA;
1902 else if (dummyStripPerModule>=kNStripC+kNStripB+kNStripA+kNStripB && dummyStripPerModule<NStripXSector()) {
1904 detId[2] = dummyStripPerModule-kNStripC-kNStripB-kNStripA-kNStripB;
1907 Int_t padPerStrip = ( index - ( NStripXSector()*NpadXStrip()*detId[0]) ) - dummyStripPerModule*NpadXStrip();
1909 detId[3] = padPerStrip / kNpadX; // padZ
1910 detId[4] = padPerStrip - detId[3]*kNpadX; // padX
1913 //_____________________________________________________________________________
1915 Int_t AliTOFGeometry::NStrip(Int_t nPlate)
1918 // Returns the strips number for the plate number 'nPlate'
1921 Int_t nStrips = kNStripC;
1941 //-------------------------------------------------------------------------
1943 UShort_t AliTOFGeometry::GetAliSensVolIndex(Int_t isector, Int_t iplate, Int_t istrip) const
1946 // Get the index of the TOF alignable volume in the AliGeomManager order.
1949 Int_t index = GetStripNumber(isector, iplate, istrip);
1951 UShort_t volIndex = AliGeomManager::LayerToVolUID(AliGeomManager::kTOF,index);
1956 //-------------------------------------------------------------------------
1958 Int_t AliTOFGeometry::GetStripNumber(Int_t isector, Int_t iplate, Int_t istrip)
1961 // Get the serial number of the TOF strip number istrip [0,14/18],
1962 // in the module number iplate [0,4],
1963 // in the TOF SM number isector [0,17].
1964 // This number will range in [0,1637].
1967 Bool_t check = (isector >= kNSectors);
1970 printf("E-AliTOFGeometry::GetStripNumber: Wrong sector number in TOF (%d)!\n",isector);
1973 Int_t stripInSM = GetStripNumberPerSM(iplate, istrip);
1974 if (!check && stripInSM!=-1)
1975 index = (2*(kNStripC+kNStripB)+kNStripA)*isector + stripInSM;
1980 //-------------------------------------------------------------------------
1982 void AliTOFGeometry::GetStripAndModule(Int_t iStripPerSM, Int_t &iplate, Int_t &istrip)
1985 // Convert the serial number of the TOF strip number iStripPerSM [0,90]
1986 // in module number iplate [0,4] and strip number istrip [0,14/18].
1989 if (iStripPerSM<0 || iStripPerSM>=kNStripC+kNStripB+kNStripA+kNStripB+kNStripC) {
1993 else if (iStripPerSM<kNStripC) {
1995 istrip = iStripPerSM;
1997 else if (iStripPerSM>=kNStripC && iStripPerSM<kNStripC+kNStripB) {
1999 istrip = iStripPerSM-kNStripC;
2001 else if (iStripPerSM>=kNStripC+kNStripB && iStripPerSM<kNStripC+kNStripB+kNStripA) {
2003 istrip = iStripPerSM-kNStripC-kNStripB;
2005 else if (iStripPerSM>=kNStripC+kNStripB+kNStripA && iStripPerSM<kNStripC+kNStripB+kNStripA+kNStripB) {
2007 istrip = iStripPerSM-kNStripC-kNStripB-kNStripA;
2009 else if (iStripPerSM>=kNStripC+kNStripB+kNStripA+kNStripB && iStripPerSM<kNStripC+kNStripB+kNStripA+kNStripB+kNStripC) {
2011 istrip = iStripPerSM-kNStripC-kNStripB-kNStripA-kNStripB;
2016 //-------------------------------------------------------------------------
2018 Int_t AliTOFGeometry::GetStripNumberPerSM(Int_t iplate, Int_t istrip)
2021 // Get the serial number of the TOF strip number istrip [0,14/18],
2022 // in the module number iplate [0,4].
2023 // This number will range in [0,90].
2029 (iplate<0 || iplate>=kNPlates)
2032 (iplate==2 && (istrip<0 || istrip>=kNStripA))
2034 (iplate!=2 && (istrip<0 || istrip>=kNStripC))
2038 if (iplate<0 || iplate>=kNPlates)
2039 printf("E-AliTOFGeometry::GetStripNumberPerSM: Wrong plate number in TOF (%1d)!\n",iplate);
2042 (iplate==2 && (istrip<0 || istrip>=kNStripA))
2044 (iplate!=2 && (istrip<0 || istrip>=kNStripC))
2046 printf("E-AliTOFGeometry::GetStripNumberPerSM: Wrong strip number in TOF "
2047 "(strip=%2d in the plate=%1d)!\n",istrip,iplate);
2049 Int_t stripOffset = 0;
2055 stripOffset = kNStripC;
2058 stripOffset = kNStripC+kNStripB;
2061 stripOffset = kNStripC+kNStripB+kNStripA;
2064 stripOffset = kNStripC+kNStripB+kNStripA+kNStripB;
2068 if (!check) index = stripOffset + istrip;
2073 //-------------------------------------------------------------------------
2075 void AliTOFGeometry::PadRF2TrackingRF(Float_t *ctrackPos, Float_t *differenceT)
2078 // To convert the 3D distance ctrackPos, referred to the ALICE RF,
2079 // into the 3D distance differenceT, referred to the tracking RF
2080 // in case ctrakPos belongs to a TOF sensitive volume.
2083 for (Int_t ii=0; ii<3; ii++) differenceT[ii] = 999.;
2085 AliDebug(1,Form(" track position in ALICE global Ref. frame -> %f, %f, %f",
2086 ctrackPos[0],ctrackPos[1],ctrackPos[2]));
2088 Int_t detId[5] = {-1,-1,-1,-1,-1};
2090 detId[0] = GetSector(ctrackPos);
2092 AliWarning(Form("This point does not belong to any TOF sector"));
2096 detId[1] = GetPlate(ctrackPos);
2098 AliWarning(Form("This point does not belong to any TOF module"));
2102 detId[2] = GetStrip(ctrackPos);
2104 AliWarning(Form("This point does not belong to any TOF strip"));
2108 detId[3] = GetPadZ(ctrackPos);
2110 AliWarning(Form("This point does not belong to any TOF pad-row"));
2114 detId[4] = GetPadX(ctrackPos);
2116 AliWarning(Form("This point does not belong to any TOF pad"));
2121 UShort_t alignableStripIndex =
2122 GetAliSensVolIndex(detId[0],detId[1],detId[2]);
2123 AliDebug(1,Form(" sector = %2d, plate = %1d, strip = %2d (padZ = %1d, padX = %2d) "
2124 "---> stripIndex = %4d",
2125 detId[0], detId[1], detId[2], detId[3], detId[4], alignableStripIndex));
2127 // pad centre coordinates in the strip ref. frame
2128 Double_t padCentreL[3] = {(detId[4]-AliTOFGeometry::NpadX()/2)*AliTOFGeometry::XPad()
2129 +AliTOFGeometry::XPad()/2.,
2131 (detId[3]-AliTOFGeometry::NpadZ()/2)*AliTOFGeometry::XPad()
2132 +AliTOFGeometry::XPad()/2.};
2133 // pad centre coordinates in the strip tracking frame
2134 Double_t padCentreT[3] = {0., 0., 0.};
2135 TGeoHMatrix l2t = *AliGeomManager::GetTracking2LocalMatrix(alignableStripIndex);
2136 l2t.MasterToLocal(padCentreL,padCentreT);
2140 // pad centre coordinates in its ref. frame
2141 Double_t padCentreL2[3] = {0., 0., 0.};
2142 // pad centre coordinates in the ALICE global ref. frame
2143 Double_t padCentreG[3] = {0., 0., 0.};
2144 GetVolumePath(detId,path);
2145 gGeoManager->cd(path);
2146 TGeoHMatrix g2l = *gGeoManager->GetCurrentMatrix();
2147 TGeoHMatrix l2g = g2l.Inverse();
2148 l2g.MasterToLocal(padCentreL2,padCentreG);
2152 // strip centre coordinates in its ref. frame
2153 Double_t stripCentreL[3] = {0., 0., 0.};
2154 // strip centre coordinates in the ALICE global ref. frame
2155 Double_t stripCentreG[3] = {0., 0., 0.};
2156 GetVolumePath(detId[0],detId[1],detId[2],path2);
2157 gGeoManager->cd(path2);
2158 TGeoHMatrix g2lb = *gGeoManager->GetCurrentMatrix();
2159 TGeoHMatrix l2gb = g2lb.Inverse();
2160 l2gb.MasterToLocal(stripCentreL,stripCentreG);
2162 TGeoHMatrix g2t = 0;
2163 AliGeomManager::GetTrackingMatrix(alignableStripIndex, g2t);
2165 // track position in the ALICE global ref. frame
2167 for (Int_t ii=0; ii<3; ii++) posG[ii] = (Double_t)ctrackPos[ii];
2169 // strip centre coordinates in the tracking ref. frame
2170 Double_t stripCentreT[3] = {0., 0., 0.};
2171 // track position in the tracking ref. frame
2172 Double_t posT[3] = {0., 0., 0.};
2173 g2t.MasterToLocal(posG,posT);
2174 g2t.MasterToLocal(stripCentreG,stripCentreT);
2176 for (Int_t ii=0; ii<3; ii++)
2177 AliDebug(1,Form(" track position in ALICE global and tracking RFs -> posG[%d] = %f --- posT[%d] = %f",
2178 ii, posG[ii], ii, posT[ii]));
2179 for (Int_t ii=0; ii<3; ii++)
2180 AliDebug(1,Form(" pad centre coordinates in its, the ALICE global and tracking RFs -> "
2181 "padCentreL[%d] = %f --- padCentreG[%d] = %f --- padCentreT[%d] = %f",
2184 ii, padCentreT[ii]));
2185 for (Int_t ii=0; ii<3; ii++)
2186 AliDebug(1,Form(" strip centre coordinates in its, the ALICE global and tracking RFs -> "
2187 "stripCentreL[%d] = %f --- stripCentreG[%d] = %f --- stripCentreT[%d] = %f",
2188 ii, stripCentreL[ii],
2189 ii, stripCentreG[ii],
2190 ii, stripCentreT[ii]));
2191 for (Int_t ii=0; ii<3; ii++)
2192 AliDebug(1,Form(" difference between the track position and the pad centre in the tracking RF "
2193 "-> posT[%d]-padCentreT[%d] = %f",
2195 posT[ii]-padCentreT[ii]));
2197 for (Int_t ii=0; ii<3; ii++) differenceT[ii] = (Float_t)(posT[ii]-padCentreT[ii]);
2200 //-------------------------------------------------------------------------
2202 Int_t AliTOFGeometry::GetTOFsupermodule(const Int_t index)
2204 // Return the TOF supermodule where TOF channel index is located
2206 if (index<0 || index>=NPadXSector()*NSectors()) return -1;
2207 else return index/NpadXStrip()/NStripXSector();