/*
$Log$
+Revision 1.24 2003/09/18 09:06:07 cblume
+Geometry update, Removal of compiler warnings
+
+Revision 1.22 2002/11/21 22:38:47 alibrary
+Removing AliMC and AliMCProcess
+
+Revision 1.21 2002/11/21 16:09:44 cblume
+Change fgkRpadW to 1.0 cm for new pad plane
+
+Revision 1.20 2002/10/31 17:45:35 cblume
+New chamber geometry
+
+Revision 1.19 2002/10/14 14:57:43 hristov
+Merging the VirtualMC branch to the main development branch (HEAD)
+
+Revision 1.15.6.2 2002/07/24 10:09:30 alibrary
+Updating VirtualMC
+
+Revision 1.15.6.1 2002/06/10 15:28:58 hristov
+Merged with v3-08-02
+
+Revision 1.17 2002/04/05 13:20:12 cblume
+Remove const for CreateGeometry
+
+Revision 1.16 2002/03/28 14:59:07 cblume
+Coding conventions
+
+Revision 1.18 2002/06/12 09:54:35 cblume
+Update of tracking code provided by Sergei
+
+Revision 1.17 2002/04/05 13:20:12 cblume
+Remove const for CreateGeometry
+
+Revision 1.16 2002/03/28 14:59:07 cblume
+Coding conventions
+
+Revision 1.15 2002/02/11 14:21:16 cblume
+Update of the geometry. Get rid of MANY
+
+Revision 1.14 2001/11/06 17:19:41 cblume
+Add detailed geometry and simple simulator
+
Revision 1.13 2001/08/02 08:30:45 cblume
Fix positions of cooling material
// //
///////////////////////////////////////////////////////////////////////////////
-#include "AliMC.h"
#include "AliTRDgeometry.h"
-#include "AliTRDrecPoint.h"
-#include "AliMC.h"
+#include "AliTRDparameter.h"
ClassImp(AliTRDgeometry)
//
// Dimensions of the detector
//
+
+ // Inner and outer radius of the mother volumes
const Float_t AliTRDgeometry::fgkRmin = 294.0;
const Float_t AliTRDgeometry::fgkRmax = 368.0;
+ // Upper and lower length of the mother volumes
const Float_t AliTRDgeometry::fgkZmax1 = 378.35;
const Float_t AliTRDgeometry::fgkZmax2 = 302.0;
+ // Parameter of the BTR mother volumes
const Float_t AliTRDgeometry::fgkSheight = 74.0;
const Float_t AliTRDgeometry::fgkSwidth1 = 99.613;
const Float_t AliTRDgeometry::fgkSwidth2 = 125.707;
const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5;
const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5;
- const Float_t AliTRDgeometry::fgkCheight = 11.0;
- const Float_t AliTRDgeometry::fgkCspace = 1.6;
- const Float_t AliTRDgeometry::fgkCathick = 1.0;
- const Float_t AliTRDgeometry::fgkCcthick = 1.0;
- const Float_t AliTRDgeometry::fgkCaframe = 2.675;
- const Float_t AliTRDgeometry::fgkCcframe = AliTRDgeometry::fgkCheight
- - AliTRDgeometry::fgkCaframe;
+ // The super module side plates
+ const Float_t AliTRDgeometry::fgkSMpltT = 0.2;
+ const Float_t AliTRDgeometry::fgkSMgapT = 0.5;
+
+ // Height of different chamber parts
+ // Radiator
+ const Float_t AliTRDgeometry::fgkCraH = 4.8;
+ // Drift region
+ const Float_t AliTRDgeometry::fgkCdrH = 3.0;
+ // Amplification region
+ const Float_t AliTRDgeometry::fgkCamH = 0.7;
+ // Readout
+ const Float_t AliTRDgeometry::fgkCroH = 2.316;
+ // Total height
+ const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH
+ + AliTRDgeometry::fgkCdrH
+ + AliTRDgeometry::fgkCamH
+ + AliTRDgeometry::fgkCroH;
+
+ // Vertical spacing of the chambers
+ const Float_t AliTRDgeometry::fgkVspace = 1.784;
+
+ // Horizontal spacing of the chambers
+ const Float_t AliTRDgeometry::fgkHspace = 2.0;
+
+ // Thicknesses of different parts of the chamber frame
+ // Lower aluminum frame
+ const Float_t AliTRDgeometry::fgkCalT = 0.3;
+ // Lower G10 frame sides
+ const Float_t AliTRDgeometry::fgkCclsT = 0.3;
+ // Lower G10 frame front
+ const Float_t AliTRDgeometry::fgkCclfT = 1.0;
+ // Upper G10 frame
+ const Float_t AliTRDgeometry::fgkCcuT = 0.9;
+ // Upper Al frame
+ const Float_t AliTRDgeometry::fgkCauT = 1.5;
+
+ // Additional width of the readout chamber frames
+ const Float_t AliTRDgeometry::fgkCroW = 0.9;
+
+ // Difference of outer chamber width and pad plane width
+ //const Float_t AliTRDgeometry::fgkCpadW = 1.0;
+ const Float_t AliTRDgeometry::fgkCpadW = 0.0;
+ const Float_t AliTRDgeometry::fgkRpadW = 1.0;
//
// Thickness of the the material layers
//
const Float_t AliTRDgeometry::fgkRaThick = 0.3646;
const Float_t AliTRDgeometry::fgkMyThick = 0.005;
- const Float_t AliTRDgeometry::fgkXeThick = 3.5;
- const Float_t AliTRDgeometry::fgkDrThick = 3.0;
- const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkXeThick
- - AliTRDgeometry::fgkDrThick;
+ const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH;
+ const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH;
+ const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick
+ + AliTRDgeometry::fgkAmThick;
const Float_t AliTRDgeometry::fgkCuThick = 0.001;
const Float_t AliTRDgeometry::fgkSuThick = 0.06;
const Float_t AliTRDgeometry::fgkFeThick = 0.0044;
const Float_t AliTRDgeometry::fgkCoThick = 0.02;
-//const Float_t AliTRDgeometry::fgkWaThick = 0.01;
const Float_t AliTRDgeometry::fgkWaThick = 0.02;
//
// Position of the material layers
//
- const Float_t AliTRDgeometry::fgkRaZpos = -1.74;
- const Float_t AliTRDgeometry::fgkMyZpos = 0.6550;
- const Float_t AliTRDgeometry::fgkDrZpos = 2.1600;
- const Float_t AliTRDgeometry::fgkAmZpos = 3.9100;
- const Float_t AliTRDgeometry::fgkCuZpos = -1.3370;
+ const Float_t AliTRDgeometry::fgkRaZpos = -1.50;
+ const Float_t AliTRDgeometry::fgkMyZpos = 0.895;
+ const Float_t AliTRDgeometry::fgkDrZpos = 2.4;
+ const Float_t AliTRDgeometry::fgkAmZpos = 0.0;
+ const Float_t AliTRDgeometry::fgkCuZpos = -0.9995;
const Float_t AliTRDgeometry::fgkSuZpos = 0.0000;
-//const Float_t AliTRDgeometry::fgkFeZpos = 1.3053;
-//const Float_t AliTRDgeometry::fgkCoZpos = 1.3175;
-//const Float_t AliTRDgeometry::fgkWaZpos = 1.3325;
- const Float_t AliTRDgeometry::fgkFeZpos = 1.2853;
- const Float_t AliTRDgeometry::fgkCoZpos = 1.2975;
- const Float_t AliTRDgeometry::fgkWaZpos = 1.3175;
+ const Float_t AliTRDgeometry::fgkFeZpos = 0.0322;
+ const Float_t AliTRDgeometry::fgkCoZpos = 0.97;
+ const Float_t AliTRDgeometry::fgkWaZpos = 0.99;
//_____________________________________________________________________________
AliTRDgeometry::AliTRDgeometry():AliGeometry()
//
// Initializes the geometry parameter
//
-
- Int_t isect;
-
- // The width of the chambers
- fCwidth[0] = 99.6;
- fCwidth[1] = 104.1;
- fCwidth[2] = 108.5;
- fCwidth[3] = 112.9;
- fCwidth[4] = 117.4;
- fCwidth[5] = 121.8;
-
// The maximum number of pads
// and the position of pad 0,0,0
//
// closest to the readout !!!
//
- // The pad column (rphi-direction)
- SetNColPad(96);
-
- // The number of time bins. Default is 100 ns timbin size
- SetNTimeBin(15);
+ Int_t icham;
+ Int_t iplan;
+ Int_t isect;
- // Additional time bins before and after the drift region.
- // Default is to only sample the drift region
- SetExpandTimeBin(0,0);
+ // The outer width of the chambers
+ fCwidth[0] = 94.8;
+ fCwidth[1] = 99.3;
+ fCwidth[2] = 103.7;
+ fCwidth[3] = 108.1;
+ fCwidth[4] = 112.6;
+ fCwidth[5] = 117.0;
+
+ // The outer lengths of the chambers
+ // Includes the spacings between the chambers!
+ Float_t length[kNplan][kNcham] = { { 124.0, 124.0, 110.0, 124.0, 124.0 }
+ , { 131.0, 131.0, 110.0, 131.0, 131.0 }
+ , { 138.0, 138.0, 110.0, 138.0, 138.0 }
+ , { 145.0, 145.0, 110.0, 145.0, 145.0 }
+ , { 147.0, 147.0, 110.0, 147.0, 147.0 }
+ , { 147.0, 147.0, 110.0, 147.0, 147.0 } };
+
+ for (icham = 0; icham < kNcham; icham++) {
+ for (iplan = 0; iplan < kNplan; iplan++) {
+ fClength[iplan][icham] = length[iplan][icham];
+ fClengthPH[iplan][icham] = 0.0;
+ fClengthRH[iplan][icham] = 0.0;
+ }
+ }
// The rotation matrix elements
Float_t phi = 0;
for (isect = 0; isect < fgkNsect; isect++) {
- phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5);
+ phi = -2.0 * TMath::Pi() / (Float_t) fgkNsect * ((Float_t) isect + 0.5);
fRotA11[isect] = TMath::Cos(phi);
fRotA12[isect] = TMath::Sin(phi);
fRotA21[isect] = TMath::Sin(phi);
}
//_____________________________________________________________________________
-void AliTRDgeometry::SetNColPad(const Int_t npad)
+void AliTRDgeometry::CreateGeometry(Int_t* )
{
//
- // Redefines the number of pads in column direction
+ // Create TRD geometry
//
- for (Int_t iplan = 0; iplan < fgkNplan; iplan++) {
- fColMax[iplan] = npad;
- fColPadSize[iplan] = (fCwidth[iplan] - 2. * fgkCcthick) / fColMax[iplan];
- fCol0[iplan] = -fCwidth[iplan]/2. + fgkCcthick;
- }
-
-}
-
-//_____________________________________________________________________________
-void AliTRDgeometry::SetNTimeBin(const Int_t nbin)
-{
- //
- // Redefines the number of time bins in the drift region.
- // The time bin width is defined by the length of the
- // drift region divided by <nbin>.
- //
-
- fTimeMax = nbin;
- fTimeBinSize = fgkDrThick / ((Float_t) fTimeMax);
- for (Int_t iplan = 0; iplan < fgkNplan; iplan++) {
- fTime0[iplan] = fgkRmin + fgkCcframe/2. + fgkDrZpos + 0.5 * fgkDrThick
- + iplan * (fgkCheight + fgkCspace);
- }
-
}
//_____________________________________________________________________________
-void AliTRDgeometry::CreateGeometry(Int_t *idtmed)
-{
- //
- // Create the TRD geometry
- //
- // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99
- //
- // The volumes:
- // TRD1-3 (Air) --- The TRD mother volumes for one sector.
- // To be placed into the spaceframe.
- //
- // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout)
- // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers
- // (driftchamber + radiator)
- // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers
- // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the
- // inner(/middle/outer) chambers
- //
- // The material layers in one chamber:
- // UL03 (Rohacell) --- The radiator
- // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode
- // UL05 (Xe) --- The driftvolume
- // UL06 (Xe) --- The amplification region
- //
- // UL07 (Cu) --- The pad plane
- // UL08 (G10) --- The Nomex honeycomb support structure
- // UL09 (Cu) --- FEE and signal lines
- // UL10 (Al) --- The cooling devices
- // UL11 (Water) --- The cooling water
-
- const Int_t kNparCha = 3;
-
- Float_t parDum[3];
- Float_t parCha[kNparCha];
-
- Float_t xpos, ypos, zpos;
-
- // The aluminum frames - readout + electronics (Al)
- // The inner chambers
- gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],parDum,0);
- // The middle chambers
- gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],parDum,0);
- // The outer chambers
- gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],parDum,0);
-
- // The inner part of the aluminum frames (Air)
- // The inner chambers
- gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],parDum,0);
- // The middle chambers
- gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],parDum,0);
- // The outer chambers
- gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],parDum,0);
-
- // The carbon frames - radiator + driftchamber (C)
- // The inner chambers
- gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],parDum,0);
- // The middle chambers
- gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],parDum,0);
- // The outer chambers
- gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],parDum,0);
-
- // The inner part of the carbon frames (Air)
- // The inner chambers
- gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],parDum,0);
- // The middle chambers
- gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],parDum,0);
- // The outer chambers
- gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],parDum,0);
-
- // The material layers inside the chambers
- parCha[0] = -1.;
- parCha[1] = -1.;
- // Rohacell layer (radiator)
- parCha[2] = fgkRaThick/2;
- gMC->Gsvolu("UL03","BOX ",idtmed[1315-1],parCha,kNparCha);
- // Mylar layer (entrance window + HV cathode)
- parCha[2] = fgkMyThick/2;
- gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],parCha,kNparCha);
- // Xe/Isobutane layer (drift volume)
- parCha[2] = fgkDrThick/2.;
- gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],parCha,kNparCha);
- // Xe/Isobutane layer (amplification volume)
- parCha[2] = fgkAmThick/2.;
- gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],parCha,kNparCha);
-
- // Cu layer (pad plane)
- parCha[2] = fgkCuThick/2;
- gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],parCha,kNparCha);
- // G10 layer (support structure)
- parCha[2] = fgkSuThick/2;
- gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],parCha,kNparCha);
- // Cu layer (FEE + signal lines)
- parCha[2] = fgkFeThick/2;
- gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],parCha,kNparCha);
- // Al layer (cooling devices)
- parCha[2] = fgkCoThick/2;
- gMC->Gsvolu("UL10","BOX ",idtmed[1301-1],parCha,kNparCha);
- // Water layer (cooling)
- parCha[2] = fgkWaThick/2;
- gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],parCha,kNparCha);
-
- // Position the layers in the chambers
- xpos = 0;
- ypos = 0;
-
- // Rohacell layer (radiator)
- zpos = fgkRaZpos;
- gMC->Gspos("UL03",1,"UCII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL03",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL03",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
- // Mylar layer (entrance window + HV cathode)
- zpos = fgkMyZpos;
- gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
- // Xe/Isobutane layer (drift volume)
- zpos = fgkDrZpos;
- gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
- // Xe/Isobutane layer (amplification volume)
- zpos = fgkAmZpos;
- gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY");
- // Cu layer (pad plane)
- zpos = fgkCuZpos;
- gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
- // G10 layer (support structure)
- zpos = fgkSuZpos;
- gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
- // Cu layer (FEE + signal lines)
- zpos = fgkFeZpos;
- gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
- // Al layer (cooling devices)
- zpos = fgkCoZpos;
- gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY");
- // Water layer (cooling)
- zpos = fgkWaZpos;
- gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY");
- gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY");
-
-}
-
-//_____________________________________________________________________________
-Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const
+Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local
+ , Float_t *global
+ , AliTRDparameter *par) const
{
//
// Converts local pad-coordinates (row,col,time) into
Int_t isect = GetSector(idet); // Sector info (0-17)
Int_t iplan = GetPlane(idet); // Plane info (0-5)
- return Local2Global(iplan,icham,isect,local,global);
+ return Local2Global(iplan,icham,isect,local,global,par);
}
//_____________________________________________________________________________
Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect
- , Float_t *local, Float_t *global) const
+ , Float_t *local, Float_t *global
+ , AliTRDparameter *par) const
{
//
// Converts local pad-coordinates (row,col,time) into
// global ALICE reference frame coordinates (x,y,z)
//
+ if (!par) {
+ Error("Local2Global","No parameter defined\n");
+ return kFALSE;
+ }
+
Int_t idet = GetDetector(iplan,icham,isect); // Detector number
Float_t padRow = local[0]+0.5; // Pad Row position
Float_t padCol = local[1]+0.5; // Pad Column position
Float_t timeSlice = local[2]+0.5; // Time "position"
- Float_t row0 = GetRow0(iplan,icham,isect);
- Float_t col0 = GetCol0(iplan);
- Float_t time0 = GetTime0(iplan);
+ Float_t row0 = par->GetRow0(iplan,icham,isect);
+ Float_t col0 = par->GetCol0(iplan);
+ Float_t time0 = par->GetTime0(iplan);
Float_t rot[3];
// calculate (x,y,z) position in rotated chamber
- rot[0] = time0 - (timeSlice - fTimeBefore) * fTimeBinSize;
- rot[1] = col0 + padCol * fColPadSize[iplan];
- rot[2] = row0 + padRow * fRowPadSize[iplan][icham][isect];
+ rot[0] = time0 - (timeSlice - par->GetTimeBefore())
+ * par->GetTimeBinSize();
+ rot[1] = col0 + padCol
+ * par->GetColPadSize(iplan);
+ rot[2] = row0 + padRow
+ * par->GetRowPadSize(iplan,icham,isect);
// Rotate back to original position
return RotateBack(idet,rot,global);
}
+
+
+//_____________________________________________________________________________
+Bool_t AliTRDgeometry::Global2Local(Int_t mode, Float_t *local, Float_t *global, Int_t* index, AliTRDparameter *par) const
+{
+ //
+ // Converts local pad-coordinates (row,col,time) into
+ // global ALICE reference frame coordinates (x,y,z)
+ //
+ //index[0]=plane number
+ //index[1]=chamber number
+ //index[2]=sector number
+ //
+ // mode=0 - local coordinate in y, z, x - rotated global
+ // mode=2 - local coordinate in pad, and pad row, x - rotated global
+ //
+ if (!par) {
+ Error("Local2Global","No parameter defined\n");
+ return kFALSE;
+ }
+
+ //Int_t idet = GetDetector(iplan,icham,isect); // Detector number
+ Int_t idet = GetDetector(index[0],index[1],index[2]); // Detector number
+ Rotate(idet,global,local);
+ if (mode==0) return kTRUE;
+ //
+ // Float_t row0 = par->GetRow0(iplan,icham,isect);
+ //Float_t col0 = par->GetCol0(iplan);
+ //Float_t time0 = par->GetTime0(iplan);
+ //
+ // mode 1 to be implemented later
+ // calculate (x,y,z) position in time bin pad row pad
+ //
+ //rot[0] = time0 - (timeSlice - par->GetTimeBefore())
+ // * par->GetTimeBinSize();
+ //rot[1] = col0 + padCol
+ // * par->GetColPadSize(iplan);
+ //rot[2] = row0 + padRow
+ // * par->GetRowPadSize(iplan,icham,isect);
+
+ return kTRUE;
+
+}
+
+//___________________________________________________________________
+Bool_t AliTRDgeometry::Global2Detector(Float_t global[3], Int_t index[3], AliTRDparameter *par)
+{
+ //
+ //
+ //input = global position
+ //output =index
+ //index[0]=plane number
+ //index[1]=chamber number
+ //index[2]=sector number
+ Float_t fi;
+ //
+ fi = TMath::ATan2(global[1],global[0]);
+ if (fi<0) fi += 2*TMath::Pi();
+ index[2] = Int_t(TMath::Nint((fi - GetAlpha()/2.)/GetAlpha()));
+ //
+ //
+ Float_t locx = global[0] * fRotA11[index[2]] + global[1] * fRotA12[index[2]];
+ index[0] = 0;
+ Float_t max = locx-par->GetTime0(0);
+ for (Int_t iplane=1; iplane<fgkNplan;iplane++){
+ Float_t dist = TMath::Abs(locx-par->GetTime0(iplane));
+ if (dist < max){
+ index[0] = iplane;
+ max = dist;
+ }
+ }
+ Float_t theta = TMath::ATan2(global[2],locx);
+ index[1] = TMath::Nint(float(fgkNcham)*theta/(0.25*TMath::Pi()));
+ return kTRUE;
+
+}
+
+
//_____________________________________________________________________________
Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const
{
}
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetDetectorSec(const Int_t p, const Int_t c) const
+{
+ //
+ // Convert plane / chamber into detector number for one single sector
+ //
+
+ return (p + c * fgkNplan);
+
+}
+
//_____________________________________________________________________________
Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const
{
}
//_____________________________________________________________________________
-void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos
- , TMatrix &mat) const
+void AliTRDgeometry::SetOldGeometry()
{
- //
- // Returns the global coordinate and error matrix of a AliTRDrecPoint
//
-
- GetGlobal(p,pos);
- mat.Zero();
-
-}
-
-//_____________________________________________________________________________
-void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const
-{
- //
- // Returns the global coordinate and error matrix of a AliTRDrecPoint
+ // Use the old chamber lengths
//
- Int_t detector = ((AliTRDrecPoint *) p)->GetDetector();
+ Int_t icham;
+ Int_t iplan;
- Float_t global[3];
- Float_t local[3];
- local[0] = ((AliTRDrecPoint *) p)->GetLocalRow();
- local[1] = ((AliTRDrecPoint *) p)->GetLocalCol();
- local[2] = ((AliTRDrecPoint *) p)->GetLocalTime();
+ Float_t length[kNplan][kNcham] = { { 123.5, 123.5, 110.0, 123.5, 123.5 }
+ , { 131.0, 131.0, 110.0, 131.0, 131.0 }
+ , { 134.5, 138.5, 110.0, 138.5, 134.5 }
+ , { 142.0, 146.0, 110.0, 146.0, 142.0 }
+ , { 142.0, 153.0, 110.0, 153.0, 142.0 }
+ , { 134.0, 160.5, 110.0, 160.5, 134.0 } };
- if (Local2Global(detector,local,global)) {
- pos.SetX(global[0]);
- pos.SetY(global[1]);
- pos.SetZ(global[2]);
- }
- else {
- pos.SetX(0.0);
- pos.SetY(0.0);
- pos.SetZ(0.0);
+ for (icham = 0; icham < kNcham; icham++) {
+ for (iplan = 0; iplan < kNplan; iplan++) {
+ fClength[iplan][icham] = length[iplan][icham];
+ }
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff