/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/*
-$Log$
-Revision 1.7.6.2 2002/07/24 10:09:31 alibrary
-Updating VirtualMC
-
-Revision 1.9 2002/06/12 09:54:36 cblume
-Update of tracking code provided by Sergei
-
-Revision 1.8 2002/03/28 14:59:07 cblume
-Coding conventions
-
-Revision 1.7 2001/11/19 08:44:08 cblume
-Fix bugs reported by Rene
-
-Revision 1.6 2001/05/28 17:07:58 hristov
-Last minute changes; ExB correction in AliTRDclusterizerV1; taking into account of material in G10 TEC frames and material between TEC planes (C.Blume,S.Sedykh)
-
-Revision 1.5 2000/12/08 16:07:02 cblume
-Update of the tracking by Sergei
-
-Revision 1.4 2000/10/16 01:16:53 cblume
-Changed timebin 0 to be the one closest to the readout
-
-Revision 1.3 2000/10/15 23:40:01 cblume
-Remove AliTRDconst
-
-Revision 1.2 2000/10/06 16:49:46 cblume
-Made Getters const
-
-Revision 1.1.2.2 2000/10/04 16:34:58 cblume
-Replace include files by forward declarations
-
-Revision 1.1.2.1 2000/09/22 14:47:52 cblume
-Add the tracking code
-
-*/
-
-/////////////////////////////////////////////////////////////////////////
-// //
-// Tracking sector //
-// //
-/////////////////////////////////////////////////////////////////////////
-
-#include <TObject.h>
-
-#include "AliRun.h"
-
-#include "AliTRD.h"
-#include "AliTRDgeometry.h"
-#include "AliTRDcluster.h"
-#include "AliTRDtimeBin.h"
-#include "AliTRDtrackingSector.h"
-#include "AliTRDparameter.h"
-
-ClassImp(AliTRDtrackingSector)
-
-//_______________________________________________________
-AliTRDtrackingSector::~AliTRDtrackingSector()
+* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+* *
+* Author: The ALICE Off-line Project. *
+* Contributors are mentioned in the code where appropriate. *
+* *
+* Permission to use, copy, modify and distribute this software and its *
+* documentation strictly for non-commercial purposes is hereby granted *
+* without fee, provided that the above copyright notice appears in all *
+* copies and that both the copyright notice and this permission notice *
+* appear in the supporting documentation. The authors make no claims *
+* about the suitability of this software for any purpose. It is *
+* provided "as is" without express or implied warranty. *
+**************************************************************************/
+
+/* $Id: AliTRDtrackingSector.cxx 23810 2008-02-08 09:00:27Z hristov $ */
+
+///////////////////////////////////////////////////////////////////////////////
+// //
+// Tracking data container for one sector //
+// //
+// Authors: //
+// Alex Bercuci <A.Bercuci@gsi.de> //
+// Markus Fasel <M.Fasel@gsi.de> //
+// //
+///////////////////////////////////////////////////////////////////////////////
+
+#include "AliTRDReconstructor.h"
+#include "AliTRDtrackingSector.h"
+#include "AliTRDtrackingChamber.h"
+
+
+ClassImp(AliTRDtrackingSector)
+
+//_____________________________________________________________________________
+AliTRDtrackingSector::AliTRDtrackingSector()
+ :fSector(-1)
+ ,fN(0)
+ ,fGeom(NULL)
{
- //
- // Destructor
- //
-
- delete fTimeBin;
-
+ // Default constructor
+
+ memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
+ memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
}
-//_______________________________________________________
-AliTRDtimeBin &AliTRDtrackingSector::operator[](Int_t i)
+//_____________________________________________________________________________
+AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs)
+ :fSector(gs)
+ ,fN(0)
+ ,fGeom(geo)
{
//
- // Index operator
+ // AliTRDtrackingSector Constructor
//
- return *(fTimeBin+i);
-
+ memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
+ memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
}
-//_______________________________________________________
-void AliTRDtrackingSector::SetUp()
-{
- //
- // Initialization
- //
-
- AliTRD *trd = (AliTRD*) gAlice->GetDetector("TRD");
- fGeom = trd->GetGeometry();
-
- fN = AliTRDgeometry::Nplan() * (Int_t(AliTRDgeometry::DrThick()
- /fTimeBinSize) + 1);
-
- fTimeBin = new AliTRDtimeBin[fN];
-
- if (!fPar) {
- fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
- }
-
- fTimeBinSize = fPar->GetTimeBinSize();
-
-}
-
-//______________________________________________________
-Double_t AliTRDtrackingSector::GetX(Int_t tb) const
-{
- //
- // Get global x coordinate
- //
-
- if( (tb<0) || (tb>fN-1)) {
- fprintf(stderr,"AliTRDtrackingSector::GetX: TimeBin index is out of range !\n");
- return -99999.;
+
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Init(const AliTRDReconstructor *rec)
+{
+// Steer building of tracking chambers and build tracking sector.
+// Propagate radial position information (calibration/alignment aware) from chambers to sector level
+//
+
+ AliTRDchamberTimeBin *tb = NULL;
+ AliTRDtrackingChamber **tc = &fChamber[0];
+ for(Int_t ic = 0; (ic<AliTRDgeometry::kNdets) && (*tc); ic++, tc++){
+ for(Int_t itb=0; itb<AliTRDseedV1::kNtb; itb++){
+ if(!(tb = (*tc)->GetTB(itb))) continue;
+ tb->SetReconstructor(rec);
+ }
+ (*tc)->Build(fGeom, rec->IsHLT());
}
- else {
- Int_t tbPerPlane = fN/AliTRDgeometry::Nplan();
- Int_t localTb = tbPerPlane - tb%tbPerPlane - 1;
-
- Int_t plane = tb/tbPerPlane;
- Float_t t0 = fPar->GetTime0(plane);
- Double_t x = t0 - (localTb + 0.5) * fTimeBinSize;
-
- return x;
-
+ Int_t nl;
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ fX0[il] = 0.; nl = 0;
+ for(int is=0; is<AliTRDgeometry::kNstack; is++){
+ Int_t idx = is*AliTRDgeometry::kNlayer + il;
+ if(fIndex[idx]<0) continue;
+ fX0[il] += GetChamber(fIndex[idx])->GetX();
+ nl++;
+ }
+ if(!nl){
+ //printf("Could not estimate radial position of plane %d in sector %d.\n", ip, fSector);
+ continue;
+ }
+ fX0[il] /= Float_t(nl);
}
-
}
-//______________________________________________________
-Int_t AliTRDtrackingSector::GetTimeBinNumber(Double_t x) const
-{
- //
- // Returns the time bin number
- //
-
- Float_t rOut = fPar->GetTime0(AliTRDgeometry::Nplan()-1);
- Float_t rIn = fPar->GetTime0(0) - AliTRDgeometry::DrThick();
- if(x >= rOut) return fN-1;
- if(x <= rIn) return 0;
-
- Int_t plane;
- for (plane = AliTRDgeometry::Nplan()-1; plane >= 0; plane--) {
- if(x > (fPar->GetTime0(plane) - AliTRDgeometry::DrThick())) break;
- }
-
- Int_t tbPerPlane = fN/AliTRDgeometry::Nplan();
- Int_t localTb = Int_t((fPar->GetTime0(plane)-x)/fTimeBinSize);
-
- if((localTb < 0) || (localTb >= tbPerPlane)) {
- printf("AliTRDtrackingSector::GetTimeBinNumber: \n");
- printf("local time bin %d is out of bounds [0..%d]: x = %f \n",
- localTb,tbPerPlane-1,x);
- return -1;
- }
-
- Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb;
-
- return timeBin;
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Clear(const Option_t *opt)
+{
+// Reset counters and steer chamber clear
+
+ AliTRDtrackingChamber **tc = &fChamber[0];
+ for(Int_t ich=0; ich<fN; ich++, tc++){
+ (*tc)->Clear(opt);
+ delete (*tc); (*tc) = NULL; // I would avoid
+ }
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ fN = 0;
}
-//______________________________________________________
-Int_t AliTRDtrackingSector::GetTimeBin(Int_t det, Int_t localTb) const
+//_____________________________________________________________________________
+AliTRDtrackingChamber* AliTRDtrackingSector::GetChamber(Int_t stack, Int_t layer, Bool_t build)
{
- //
- // Time bin
- //
-
- Int_t plane = fGeom->GetPlane(det);
-
- Int_t tbPerPlane = fN/AliTRDgeometry::Nplan();
-
- Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb;
-
- return timeBin;
-
+// Return chamber at position (stack, plane) in current
+// sector or build a new one if it is not already created
+
+ Int_t ch = stack*AliTRDgeometry::kNlayer + layer;
+ if(fIndex[ch] >= 0) return fChamber[Int_t(fIndex[ch])];
+ else if(!build) return NULL;
+
+ // CHAMBER HAS TO BE BUILD
+ Int_t rch = ch;do rch--; while(rch>=0 && fIndex[rch]<0);
+ fIndex[ch] = rch >=0 ? fIndex[rch]+1 : 0;
+ fN++;
+
+ memmove(&fChamber[Int_t(fIndex[ch])+1], &fChamber[Int_t(fIndex[ch])], (AliTRDgeometry::kNdets-fIndex[ch]-1)*sizeof(void*));
+ for(Int_t ic = ch+1; ic<AliTRDgeometry::kNdets; ic++) fIndex[ic] += fIndex[ic] >= 0 ? 1 : 0;
+
+ AliTRDtrackingChamber *chmb = fChamber[Int_t(fIndex[ch])] = new AliTRDtrackingChamber();
+ chmb->SetDetector(AliTRDgeometry::GetDetector(layer, stack, fSector));
+ return chmb;
}
-
-//______________________________________________________
-
-Bool_t AliTRDtrackingSector::TECframe(Int_t tb, Double_t y, Double_t z) const
+//_____________________________________________________________________________
+AliTRDtrackingChamber** AliTRDtrackingSector::GetStack(Int_t stack)
{
- //
- // Returns <true> if point defined by <x(tb),y,z> is within
- // the TEC G10 frame, otherwise returns <false>
- //
-
- if((tb > (fN-1)) || (tb < 0)) return kFALSE;
-
- Int_t tbPerPlane = fN/AliTRDgeometry::Nplan();
- Int_t plane = tb/tbPerPlane;
+// Return chamber at position (stack, plane) in current
+// sector or build a new one if it is not already created
- Double_t x = GetX(tb);
- y = TMath::Abs(y);
-
- if((y > fGeom->GetChamberWidth(plane)/2.) &&
- (y < x*TMath::Tan(0.5*AliTRDgeometry::GetAlpha()))) return kTRUE;
-
- Double_t zmin, zmax;
- Float_t fRowPadSize, fRow0;
- Int_t nPadRows;
-
- for(Int_t iCha = 1; iCha < AliTRDgeometry::Ncham(); iCha++) {
-
- fRow0 = fPar->GetRow0(plane,iCha-1,0);
- fRowPadSize = fPar->GetRowPadSize(plane,iCha-1,0);
- nPadRows = fPar->GetRowMax(plane,iCha-1,0);
- zmin = fRow0 - fRowPadSize/2 + fRowPadSize * nPadRows;
-
- fRow0 = fPar->GetRow0(plane,iCha,0);
- fRowPadSize = fPar->GetRowPadSize(plane,iCha,0);
- zmax = fRow0 - fRowPadSize/2;
-
- if((z > zmin) && (z < zmax)) return kTRUE;
+ if(stack<0 || stack>=AliTRDgeometry::kNstack) return NULL;
+
+ Int_t ich, n = 0;
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ ich = stack*AliTRDgeometry::kNlayer + il;
+ if(fIndex[ich] < 0) fStack[il] = NULL;
+ else{
+ fStack[il] = fChamber[Int_t(fIndex[ich])];
+ n++;
+ }
}
+
+ return n ? &fStack[0] : NULL;
+}
- return kFALSE;
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Print(Option_t *opt) const
+{
+// Dump info about this tracking sector and the tracking chamber within
+//
+
+ printf("\n\tSector[%2d]\n", fSector);
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ for(int is =0; is<AliTRDgeometry::kNstack; is++){
+ Int_t ch = is*AliTRDgeometry::kNlayer + il;
+ if(opt) fChamber[Int_t(fIndex[ch])]->Print(opt);
+ else printf("%2d[%2d] ", fIndex[ch], fIndex[ch]>=0 ? fChamber[Int_t(fIndex[ch])]->GetNClusters() : 0);
+ }
+ if(!opt) printf("\n");
+ }
}
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