/**************************************************************************
* 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 1.25 2000/11/02 07:25:31 kowal2
Changes due to the new hit structure.
Memory leak removed.
Revision 1.24 2000/10/05 16:06:09 kowal2
Forward declarations. Changes due to a new class AliComplexCluster.
Revision 1.23 2000/10/02 21:28:18 fca
Removal of useless dependecies via forward declarations
Revision 1.22 2000/07/10 20:57:39 hristov
Update of TPC code and macros by M.Kowalski
Revision 1.19.2.4 2000/06/26 07:39:42 kowal2
Changes to obey the coding rules
Revision 1.19.2.3 2000/06/25 08:38:41 kowal2
Splitted from AliTPCtracking
Revision 1.19.2.2 2000/06/16 12:59:28 kowal2
Changed parameter settings
Revision 1.19.2.1 2000/06/09 07:15:07 kowal2
Defaults loaded automatically (hard-wired)
Optional parameters can be set via macro called in the constructor
Revision 1.19 2000/04/18 19:00:59 fca
Small bug fixes to TPC files
Revision 1.18 2000/04/17 09:37:33 kowal2
removed obsolete AliTPCDigitsDisplay.C
Revision 1.17.2.2 2000/04/10 08:15:12 kowal2
New, experimental data structure from M. Ivanov
New tracking algorithm
Different pad geometry for different sectors
Digitization rewritten
Revision 1.17.2.1 2000/04/10 07:56:53 kowal2
Not used anymore - removed
Revision 1.17 2000/01/19 17:17:30 fca
Introducing a list of lists of hits -- more hits allowed for detector now
Revision 1.16 1999/11/05 09:29:23 fca
Accept only signals > 0
Revision 1.15 1999/10/08 06:26:53 fca
Removed ClustersIndex - not used anymore
Revision 1.14 1999/09/29 09:24:33 fca
Introduction of the Copyright and cvs Log
*/
///////////////////////////////////////////////////////////////////////////////
// //
// Time Projection Chamber //
// This class contains the basic functions for the Time Projection Chamber //
// detector. Functions specific to one particular geometry are //
// contained in the derived classes //
// //
//Begin_Html
/*
*/
//End_Html
// //
// //
///////////////////////////////////////////////////////////////////////////////
//
#include
#include
#include
#include
#include
#include
#include
#include
#include "TParticle.h"
#include "AliTPC.h"
#include
#include "AliRun.h"
#include
#include
#include "AliMC.h"
#include "AliMagF.h"
#include "AliTPCParamSR.h"
#include "AliTPCPRF2D.h"
#include "AliTPCRF1D.h"
#include "AliDigits.h"
#include "AliSimDigits.h"
#include "AliTPCTrackHits.h"
#include "AliPoints.h"
#include "AliArrayBranch.h"
#include "AliTPCDigitsArray.h"
#include "AliComplexCluster.h"
#include "AliClusters.h"
#include "AliTPCClustersRow.h"
#include "AliTPCClustersArray.h"
#include "AliTPCcluster.h"
#include "AliTPCclusterer.h"
#include "AliTPCtracker.h"
#include
#include
ClassImp(AliTPC)
//_____________________________________________________________________________
AliTPC::AliTPC()
{
//
// Default constructor
//
fIshunt = 0;
fHits = 0;
fDigits = 0;
fNsectors = 0;
//MI changes
fDigitsArray = 0;
fClustersArray = 0;
fTPCParam=0;
fTrackHits = 0;
fHitType = 2;
fTPCParam = 0;
}
//_____________________________________________________________________________
AliTPC::AliTPC(const char *name, const char *title)
: AliDetector(name,title)
{
//
// Standard constructor
//
//
// Initialise arrays of hits and digits
fHits = new TClonesArray("AliTPChit", 176);
gAlice->AddHitList(fHits);
//MI change
fDigitsArray = 0;
fClustersArray= 0;
//
fTrackHits = new AliTPCTrackHits; //MI - 13.09.2000
fTrackHits->SetHitPrecision(0.002);
fTrackHits->SetStepPrecision(0.003);
fTrackHits->SetMaxDistance(100);
fHitType = 2;
//
// Initialise counters
fNsectors = 0;
//
fIshunt = 0;
//
// Initialise color attributes
SetMarkerColor(kYellow);
//
// Set TPC parameters
//
if (!strcmp(title,"Default")) {
fTPCParam = new AliTPCParamSR;
} else {
cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
fTPCParam=0;
}
}
//_____________________________________________________________________________
AliTPC::~AliTPC()
{
//
// TPC destructor
//
fIshunt = 0;
delete fHits;
delete fDigits;
delete fTPCParam;
delete fTrackHits; //MI 15.09.2000
}
//_____________________________________________________________________________
void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
{
//
// Add a hit to the list
//
// TClonesArray &lhits = *fHits;
// new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
if (fHitType&1){
TClonesArray &lhits = *fHits;
new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
}
if (fHitType&2)
AddHit2(track,vol,hits);
}
//_____________________________________________________________________________
void AliTPC::BuildGeometry()
{
//
// Build TPC ROOT TNode geometry for the event display
//
TNode *nNode, *nTop;
TTUBS *tubs;
Int_t i;
const int kColorTPC=19;
char name[5], title[25];
const Double_t kDegrad=TMath::Pi()/180;
const Double_t kRaddeg=180./TMath::Pi();
Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
Int_t nLo = fTPCParam->GetNInnerSector()/2;
Int_t nHi = fTPCParam->GetNOuterSector()/2;
const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
Double_t rl,ru;
//
// Get ALICE top node
//
nTop=gAlice->GetGeometry()->GetNode("alice");
// inner sectors
rl = fTPCParam->GetInnerRadiusLow();
ru = fTPCParam->GetInnerRadiusUp();
for(i=0;iSetNumberOfDivisions(1);
nTop->cd();
nNode = new TNode(name,title,name,0,0,0,"");
nNode->SetLineColor(kColorTPC);
fNodes->Add(nNode);
}
// Outer sectors
rl = fTPCParam->GetOuterRadiusLow();
ru = fTPCParam->GetOuterRadiusUp();
for(i=0;iSetNumberOfDivisions(1);
nTop->cd();
nNode = new TNode(name,title,name,0,0,0,"");
nNode->SetLineColor(kColorTPC);
fNodes->Add(nNode);
}
}
//_____________________________________________________________________________
Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t )
{
//
// Calculate distance from TPC to mouse on the display
// Dummy procedure
//
return 9999;
}
void AliTPC::Clusters2Tracks(TFile *of) {
//-----------------------------------------------------------------
// This is a track finder.
//-----------------------------------------------------------------
AliTPCtracker::Clusters2Tracks(fTPCParam,of);
}
//_____________________________________________________________________________
void AliTPC::CreateMaterials()
{
//-----------------------------------------------
// Create Materials for for TPC simulations
//-----------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
Int_t iSXFLD=gAlice->Field()->Integ();
Float_t sXMGMX=gAlice->Field()->Max();
Float_t amat[5]; // atomic numbers
Float_t zmat[5]; // z
Float_t wmat[5]; // proportions
Float_t density;
Float_t apure[2];
//***************** Gases *************************
//-------------------------------------------------
// pure gases
//-------------------------------------------------
// Neon
amat[0]= 20.18;
zmat[0]= 10.;
density = 0.0009;
apure[0]=amat[0];
AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
// Argon
amat[0]= 39.948;
zmat[0]= 18.;
density = 0.001782;
apure[1]=amat[0];
AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
//--------------------------------------------------------------
// gases - compounds
//--------------------------------------------------------------
Float_t amol[3];
// CO2
amat[0]=12.011;
amat[1]=15.9994;
zmat[0]=6.;
zmat[1]=8.;
wmat[0]=1.;
wmat[1]=2.;
density=0.001977;
amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
// CF4
amat[0]=12.011;
amat[1]=18.998;
zmat[0]=6.;
zmat[1]=9.;
wmat[0]=1.;
wmat[1]=4.;
density=0.003034;
amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
// CH4
amat[0]=12.011;
amat[1]=1.;
zmat[0]=6.;
zmat[1]=1.;
wmat[0]=1.;
wmat[1]=4.;
density=0.000717;
amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
//----------------------------------------------------------------
// gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
//----------------------------------------------------------------
char namate[21];
density = 0.;
Float_t am=0;
Int_t nc;
Float_t rho,absl,X0,buf[1];
Int_t nbuf;
Float_t a,z;
for(nc = 0;ncGfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf);
amat[nc] = a;
zmat[nc] = z;
Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
density += fMixtProp[nc]*rho; // density of the mixture
}
// mixture proportions by weight!
for(nc = 0;nc=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
apure[nnc] : amol[nnc])/am;
}
// Drift gases 1 - nonsensitive, 2 - sensitive
AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
// Air
amat[0] = 14.61;
zmat[0] = 7.3;
density = 0.001205;
AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
//----------------------------------------------------------------------
// solid materials
//----------------------------------------------------------------------
// Kevlar C14H22O2N2
amat[0] = 12.011;
amat[1] = 1.;
amat[2] = 15.999;
amat[3] = 14.006;
zmat[0] = 6.;
zmat[1] = 1.;
zmat[2] = 8.;
zmat[3] = 7.;
wmat[0] = 14.;
wmat[1] = 22.;
wmat[2] = 2.;
wmat[3] = 2.;
density = 1.45;
AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
// NOMEX
amat[0] = 12.011;
amat[1] = 1.;
amat[2] = 15.999;
amat[3] = 14.006;
zmat[0] = 6.;
zmat[1] = 1.;
zmat[2] = 8.;
zmat[3] = 7.;
wmat[0] = 14.;
wmat[1] = 22.;
wmat[2] = 2.;
wmat[3] = 2.;
density = 0.03;
AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
// Makrolon C16H18O3
amat[0] = 12.011;
amat[1] = 1.;
amat[2] = 15.999;
zmat[0] = 6.;
zmat[1] = 1.;
zmat[2] = 8.;
wmat[0] = 16.;
wmat[1] = 18.;
wmat[2] = 3.;
density = 1.2;
AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
// Mylar C5H4O2
amat[0]=12.011;
amat[1]=1.;
amat[2]=15.9994;
zmat[0]=6.;
zmat[1]=1.;
zmat[2]=8.;
wmat[0]=5.;
wmat[1]=4.;
wmat[2]=2.;
density = 1.39;
AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
// G10 60% SiO2 + 40% epoxy, I use A and Z for SiO2
amat[0]=28.086;
amat[1]=15.9994;
zmat[0]=14.;
zmat[1]=8.;
wmat[0]=1.;
wmat[1]=2.;
density = 1.7;
AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz
gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
AliMaterial(39,"G10",amat[0],zmat[0],density,999.,999.);
// Al
amat[0] = 26.98;
zmat[0] = 13.;
density = 2.7;
AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
// Si
amat[0] = 28.086;
zmat[0] = 14.,
density = 2.33;
AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
// Cu
amat[0] = 63.546;
zmat[0] = 29.;
density = 8.96;
AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
// Tedlar C2H3F
amat[0] = 12.011;
amat[1] = 1.;
amat[2] = 18.998;
zmat[0] = 6.;
zmat[1] = 1.;
zmat[2] = 9.;
wmat[0] = 2.;
wmat[1] = 3.;
wmat[2] = 1.;
density = 1.71;
AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
// Plexiglas C5H8O2
amat[0]=12.011;
amat[1]=1.;
amat[2]=15.9994;
zmat[0]=6.;
zmat[1]=1.;
zmat[2]=8.;
wmat[0]=5.;
wmat[1]=8.;
wmat[2]=2.;
density=1.18;
AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
//----------------------------------------------------------
// tracking media for gases
//----------------------------------------------------------
AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
//-----------------------------------------------------------
// tracking media for solids
//-----------------------------------------------------------
AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
}
void AliTPC::Digits2Clusters(TFile *of)
{
//-----------------------------------------------------------------
// This is a simple cluster finder.
//-----------------------------------------------------------------
AliTPCclusterer::Digits2Clusters(fTPCParam,of);
}
extern Double_t SigmaY2(Double_t, Double_t, Double_t);
extern Double_t SigmaZ2(Double_t, Double_t);
//_____________________________________________________________________________
void AliTPC::Hits2Clusters(TFile *of)
{
//--------------------------------------------------------
// TPC simple cluster generator from hits
// obtained from the TPC Fast Simulator
// The point errors are taken from the parametrization
//--------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
// Adopted to Marian's cluster data structure by I.Belikov, CERN,
// Jouri.Belikov@cern.ch
//----------------------------------------------------------------
/////////////////////////////////////////////////////////////////////////////
//
//---------------------------------------------------------------------
// ALICE TPC Cluster Parameters
//--------------------------------------------------------------------
// Cluster width in rphi
const Float_t kACrphi=0.18322;
const Float_t kBCrphi=0.59551e-3;
const Float_t kCCrphi=0.60952e-1;
// Cluster width in z
const Float_t kACz=0.19081;
const Float_t kBCz=0.55938e-3;
const Float_t kCCz=0.30428;
TDirectory *savedir=gDirectory;
if (!of->IsOpen()) {
cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
return;
}
if(fTPCParam == 0){
printf("AliTPCParam MUST be created firstly\n");
return;
}
Float_t sigmaRphi,sigmaZ,clRphi,clZ;
//
TParticle *particle; // pointer to a given particle
AliTPChit *tpcHit; // pointer to a sigle TPC hit
TClonesArray *particles; //pointer to the particle list
Int_t sector;
Int_t ipart;
Float_t xyz[5];
Float_t pl,pt,tanth,rpad,ratio;
Float_t cph,sph;
//---------------------------------------------------------------
// Get the access to the tracks
//---------------------------------------------------------------
TTree *tH = gAlice->TreeH();
Stat_t ntracks = tH->GetEntries();
particles=gAlice->Particles();
//Switch to the output file
of->cd();
fTPCParam->Write(fTPCParam->GetTitle());
AliTPCClustersArray carray;
carray.Setup(fTPCParam);
carray.SetClusterType("AliTPCcluster");
carray.MakeTree();
Int_t nclusters=0; //cluster counter
//------------------------------------------------------------
// Loop over all sectors (72 sectors for 20 deg
// segmentation for both lower and upper sectors)
// Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
// Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
//
// First cluster for sector 0 starts at "0"
//------------------------------------------------------------
for(Int_t isec=0;isecGetNSector();isec++){
//MI change
fTPCParam->AdjustCosSin(isec,cph,sph);
//------------------------------------------------------------
// Loop over tracks
//------------------------------------------------------------
for(Int_t track=0;trackGetEvent(track);
//
// Get number of the TPC hits
//
// nhits=fHits->GetEntriesFast();
//
tpcHit = (AliTPChit*)FirstHit(-1);
// Loop over hits
//
// for(Int_t hit=0;hitUncheckedAt(hit);
while(tpcHit){
if (tpcHit->fQ == 0.) {
tpcHit = (AliTPChit*) NextHit();
continue; //information about track (I.Belikov)
}
sector=tpcHit->fSector; // sector number
// if(sector != isec) continue; //terminate iteration
if(sector != isec){
tpcHit = (AliTPChit*) NextHit();
continue;
}
ipart=tpcHit->Track();
particle=(TParticle*)particles->UncheckedAt(ipart);
pl=particle->Pz();
pt=particle->Pt();
if(pt < 1.e-9) pt=1.e-9;
tanth=pl/pt;
tanth = TMath::Abs(tanth);
rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
// space-point resolutions
sigmaRphi=SigmaY2(rpad,tanth,pt);
sigmaZ =SigmaZ2(rpad,tanth );
// cluster widths
clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
// temporary protection
if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
if(sigmaZ < 0.) sigmaZ=0.4e-3;
if(clRphi < 0.) clRphi=2.5e-3;
if(clZ < 0.) clZ=2.5e-5;
//
//
// smearing --> rotate to the 1 (13) or to the 25 (49) sector,
// then the inaccuracy in a X-Y plane is only along Y (pad row)!
//
Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
Float_t ymax=xprim*TMath::Tan(0.5*alpha);
if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
xyz[2]=sigmaRphi; // fSigmaY2
xyz[3]=sigmaZ; // fSigmaZ2
xyz[4]=tpcHit->fQ; // q
AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
Int_t tracks[3]={tpcHit->Track(), -1, -1};
AliTPCcluster cluster(tracks,xyz);
clrow->InsertCluster(&cluster); nclusters++;
tpcHit = (AliTPChit*)NextHit();
} // end of loop over hits
} // end of loop over tracks
Int_t nrows=fTPCParam->GetNRow(isec);
for (Int_t irow=0; irowWrite();
savedir->cd(); //switch back to the input file
} // end of function
//_________________________________________________________________
void AliTPC::Hits2ExactClustersSector(Int_t isec)
{
//--------------------------------------------------------
//calculate exact cross point of track and given pad row
//resulting values are expressed in "digit" coordinata
//--------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
//-----------------------------------------------------------------
//
if (fClustersArray==0){
return;
}
//
TParticle *particle; // pointer to a given particle
AliTPChit *tpcHit; // pointer to a sigle TPC hit
TClonesArray *particles; //pointer to the particle list
Int_t sector,nhits;
Int_t ipart;
const Int_t kcmaxhits=30000;
TVector * xxxx = new TVector(kcmaxhits*4);
TVector & xxx = *xxxx;
Int_t maxhits = kcmaxhits;
//construct array for each padrow
for (Int_t i=0; iGetNRow(isec);i++)
fClustersArray->CreateRow(isec,i);
//---------------------------------------------------------------
// Get the access to the tracks
//---------------------------------------------------------------
TTree *tH = gAlice->TreeH();
Stat_t ntracks = tH->GetEntries();
particles=gAlice->Particles();
Int_t npart = particles->GetEntriesFast();
//------------------------------------------------------------
// Loop over tracks
//------------------------------------------------------------
for(Int_t track=0;trackGetEvent(track);
//
// Get number of the TPC hits and a pointer
// to the particles
//
nhits=fHits->GetEntriesFast();
//
// Loop over hits
//
Int_t currentIndex=0;
Int_t lastrow=-1; //last writen row
for(Int_t hit=0;hitUncheckedAt(hit);
if (tpcHit==0) continue;
sector=tpcHit->fSector; // sector number
if(sector != isec) continue;
ipart=tpcHit->Track();
if (ipartUncheckedAt(ipart);
//find row number
Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
Int_t index[3]={1,isec,0};
Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
if (currentrow<0) continue;
if (lastrow<0) lastrow=currentrow;
if (currentrow==lastrow){
if ( currentIndex>=maxhits){
maxhits+=kcmaxhits;
xxx.ResizeTo(4*maxhits);
}
xxx(currentIndex*4)=x[0];
xxx(currentIndex*4+1)=x[1];
xxx(currentIndex*4+2)=x[2];
xxx(currentIndex*4+3)=tpcHit->fQ;
currentIndex++;
}
else
if (currentIndex>2){
Float_t sumx=0;
Float_t sumx2=0;
Float_t sumx3=0;
Float_t sumx4=0;
Float_t sumy=0;
Float_t sumxy=0;
Float_t sumx2y=0;
Float_t sumz=0;
Float_t sumxz=0;
Float_t sumx2z=0;
Float_t sumq=0;
for (Int_t index=0;indexGetNPads(isec,lastrow)-1)/2;
Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx3-sumx2*sumx2);
Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
sumx2*(sumxy*sumx3-sumx2y*sumx2);
Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
sumx2*(sumxz*sumx3-sumx2z*sumx2);
Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx2y-sumx2*sumxy);
Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx2z-sumx2*sumxz);
Float_t y=detay/det+centralPad;
Float_t z=detaz/det;
Float_t by=detby/det; //y angle
Float_t bz=detbz/det; //z angle
sumy/=Float_t(currentIndex);
sumz/=Float_t(currentIndex);
AliComplexCluster cl;
cl.fX=z;
cl.fY=y;
cl.fQ=sumq;
cl.fSigmaX2=bz;
cl.fSigmaY2=by;
cl.fTracks[0]=ipart;
AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
if (row!=0) row->InsertCluster(&cl);
currentIndex=0;
lastrow=currentrow;
} //end of calculating cluster for given row
} // end of loop over hits
} // end of loop over tracks
//write padrows to tree
for (Int_t ii=0; iiGetNRow(isec);ii++) {
fClustersArray->StoreRow(isec,ii);
fClustersArray->ClearRow(isec,ii);
}
xxxx->Delete();
}
//__________________________________________________________________
void AliTPC::Hits2Digits()
{
//----------------------------------------------------
// Loop over all sectors
//----------------------------------------------------
if(fTPCParam == 0){
printf("AliTPCParam MUST be created firstly\n");
return;
}
for(Int_t isec=0;isecGetNSector();isec++) Hits2DigitsSector(isec);
}
//_____________________________________________________________________________
void AliTPC::Hits2DigitsSector(Int_t isec)
{
//-------------------------------------------------------------------
// TPC conversion from hits to digits.
//-------------------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
//-------------------------------------------------------
// Get the access to the track hits
//-------------------------------------------------------
TTree *tH = gAlice->TreeH(); // pointer to the hits tree
Stat_t ntracks = tH->GetEntries();
if( ntracks > 0){
//-------------------------------------------
// Only if there are any tracks...
//-------------------------------------------
TObjArray **row;
printf("*** Processing sector number %d ***\n",isec);
Int_t nrows =fTPCParam->GetNRow(isec);
row= new TObjArray* [nrows];
MakeSector(isec,nrows,tH,ntracks,row);
//--------------------------------------------------------
// Digitize this sector, row by row
// row[i] is the pointer to the TObjArray of TVectors,
// each one containing electrons accepted on this
// row, assigned into tracks
//--------------------------------------------------------
Int_t i;
if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree();
for (i=0;iCreateRow(isec,i);
DigitizeRow(i,isec,row);
fDigitsArray->StoreRow(isec,i);
Int_t ndig = dig->GetDigitSize();
printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
fDigitsArray->ClearRow(isec,i);
} // end of the sector digitization
for(i=0;iDelete();
delete row[i];
}
delete [] row; // delete the array of pointers to TObjArray-s
} // ntracks >0
} // end of Hits2DigitsSector
//_____________________________________________________________________________
void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
{
//-----------------------------------------------------------
// Single row digitization, coupling from the neighbouring
// rows taken into account
//-----------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
// Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
//-----------------------------------------------------------------
Float_t zerosup = fTPCParam->GetZeroSup();
Int_t nrows =fTPCParam->GetNRow(isec);
fCurrentIndex[1]= isec;
Int_t nofPads = fTPCParam->GetNPads(isec,irow);
Int_t nofTbins = fTPCParam->GetMaxTBin();
Int_t indexRange[4];
//
// Integrated signal for this row
// and a single track signal
//
TMatrix *m1 = new TMatrix(0,nofPads,0,nofTbins); // integrated
TMatrix *m2 = new TMatrix(0,nofPads,0,nofTbins); // single
//
TMatrix &total = *m1;
// Array of pointers to the label-signal list
Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
Float_t **pList = new Float_t* [nofDigits];
Int_t lp;
Int_t i1;
for(lp=0;lpGetNCrossRows(),0);
Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
for (Int_t row= row1;row<=row2;row++){
Int_t nTracks= rows[row]->GetEntries();
for (i1=0;i1Zero(); // clear single track signal matrix
Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
GetList(trackLabel,nofPads,m2,indexRange,pList);
}
else GetSignal(rows[row],i1,0,m1,indexRange);
}
}
Int_t tracks[3];
AliDigits *dig = fDigitsArray->GetRow(isec,irow);
for(Int_t ip=0;ipGaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
q = (Int_t)q;
if(q <=zerosup) continue; // do not fill zeros
if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
//
// "real" signal or electronic noise (list = -1)?
//
for(Int_t j1=0;j1<3;j1++){
tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -1;
}
//Begin_Html
/*
using of AliDigits object
*/
//End_Html
dig->SetDigitFast((Short_t)q,it,ip);
if (fDigitsArray->IsSimulated())
{
((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
}
} // end of loop over time buckets
} // end of lop over pads
//
// This row has been digitized, delete nonused stuff
//
for(lp=0;lpAt(ntr); // pointer to a track
TVector &v = *tv;
Float_t label = v(0);
Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3])-1)/2;
Int_t nElectrons = (tv->GetNrows()-1)/4;
indexRange[0]=9999; // min pad
indexRange[1]=-1; // max pad
indexRange[2]=9999; //min time
indexRange[3]=-1; // max time
// Float_t IneffFactor = 0.5; // inefficiency in the gain close to the edge, as above
TMatrix &signal = *m1;
TMatrix &total = *m2;
//
// Loop over all electrons
//
for(Int_t nel=0; nelGetTotalNormFac();
Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
Int_t n = fTPCParam->CalcResponse(xyz,fCurrentIndex,fCurrentIndex[3]);
if (n>0) for (Int_t i =0; iGetResBin(i);
Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
if ( ( pad<(fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]))) && (pad>0)) {
Int_t time=index[2];
Float_t weight = fTPCParam->GetResWeight(i); //we normalise response to ADC channel
weight *= eltoadcfac;
if (m1!=0) signal(pad,time)+=weight;
total(pad,time)+=weight;
indexRange[0]=TMath::Min(indexRange[0],pad);
indexRange[1]=TMath::Max(indexRange[1],pad);
indexRange[2]=TMath::Min(indexRange[2],time);
indexRange[3]=TMath::Max(indexRange[3],time);
}
}
} // end of loop over electrons
return label; // returns track label when finished
}
//_____________________________________________________________________________
void AliTPC::GetList(Float_t label,Int_t np,TMatrix *m,Int_t *indexRange,
Float_t **pList)
{
//----------------------------------------------------------------------
// Updates the list of tracks contributing to digits for a given row
//----------------------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
TMatrix &signal = *m;
// lop over nonzero digits
for(Int_t it=indexRange[2];ithighest){
*(pList[globalIndex]+5) = middle;
*(pList[globalIndex]+4) = highest;
*(pList[globalIndex]+3) = signal(ip,it);
*(pList[globalIndex]+2) = *(pList[globalIndex]+1);
*(pList[globalIndex]+1) = *pList[globalIndex];
*pList[globalIndex] = label;
}
else if (signal(ip,it)>middle){
*(pList[globalIndex]+5) = middle;
*(pList[globalIndex]+4) = signal(ip,it);
*(pList[globalIndex]+2) = *(pList[globalIndex]+1);
*(pList[globalIndex]+1) = label;
}
else{
*(pList[globalIndex]+5) = signal(ip,it);
*(pList[globalIndex]+2) = label;
}
}
} // end of loop over pads
} // end of loop over time bins
}//end of GetList
//___________________________________________________________________
void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
Stat_t ntracks,TObjArray **row)
{
//-----------------------------------------------------------------
// Prepares the sector digitization, creates the vectors of
// tracks for each row of this sector. The track vector
// contains the track label and the position of electrons.
//-----------------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
Float_t gasgain = fTPCParam->GetGasGain();
Int_t i;
Float_t xyz[4];
AliTPChit *tpcHit; // pointer to a sigle TPC hit
//MI change
TBranch * branch=0;
if (fHitType&2) branch = TH->GetBranch("TPC2");
else branch = TH->GetBranch("TPC");
//----------------------------------------------
// Create TObjArray-s, one for each row,
// each TObjArray will store the TVectors
// of electrons, one TVector per each track.
//----------------------------------------------
Int_t *nofElectrons = new Int_t [nrows]; // electron counter for each row
TVector **tracks = new TVector* [nrows]; //pointers to the track vectors
for(i=0; iGetBranch("fTrackHitsInfo");
br->GetEvent(track);
AliObjectArray * ar = fTrackHits->fTrackHitsInfo;
for (UInt_t j=0;jGetSize();j++){
if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==isec) isInSector=kTRUE;
}
}
if (!isInSector) continue;
//MI change
branch->GetEntry(track); // get next track
//M.I. changes
tpcHit = (AliTPChit*)FirstHit(-1);
//--------------------------------------------------------------
// Loop over hits
//--------------------------------------------------------------
while(tpcHit){
Int_t sector=tpcHit->fSector; // sector number
// if(sector != isec) continue;
if(sector != isec){
tpcHit = (AliTPChit*) NextHit();
continue;
}
currentTrack = tpcHit->Track(); // track number
if(currentTrack != previousTrack){
// store already filled fTrack
for(i=0;i0){
TVector &v = *tracks[i];
v(0) = previousTrack;
tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
row[i]->Add(tracks[i]);
}
else{
delete tracks[i]; // delete empty TVector
tracks[i]=0;
}
}
nofElectrons[i]=0;
tracks[i] = new TVector(481); // TVectors for the next fTrack
} // end of loop over rows
previousTrack=currentTrack; // update track label
}
Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
//---------------------------------------------------
// Calculate the electron attachment probability
//---------------------------------------------------
Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
/fTPCParam->GetDriftV();
// in microseconds!
Float_t attProb = fTPCParam->GetAttCoef()*
fTPCParam->GetOxyCont()*time; // fraction!
//-----------------------------------------------
// Loop over electrons
//-----------------------------------------------
Int_t index[3];
index[1]=isec;
for(Int_t nel=0;nelRndm(0)) < attProb) continue; // electron lost!
xyz[0]=tpcHit->X();
xyz[1]=tpcHit->Y();
xyz[2]=tpcHit->Z();
xyz[3]= (Float_t) (-gasgain*TMath::Log(gRandom->Rndm()));
index[0]=1;
TransportElectron(xyz,index); //MI change -august
Int_t rowNumber;
fTPCParam->GetPadRow(xyz,index); //MI change august
rowNumber = index[2];
//transform position to local digit coordinates
//relative to nearest pad row
if ((rowNumber<0)||rowNumber>=fTPCParam->GetNRow(isec)) continue;
nofElectrons[rowNumber]++;
//----------------------------------
// Expand vector if necessary
//----------------------------------
if(nofElectrons[rowNumber]>120){
Int_t range = tracks[rowNumber]->GetNrows();
if((nofElectrons[rowNumber])>(range-1)/4){
tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
}
}
TVector &v = *tracks[rowNumber];
Int_t idx = 4*nofElectrons[rowNumber]-3;
v(idx)= xyz[0]; // X - pad row coordinate
v(idx+1)=xyz[1]; // Y - pad coordinate (along the pad-row)
v(idx+2)=xyz[2]; // Z - time bin coordinate
v(idx+3)=xyz[3]; // avalanche size
} // end of loop over electrons
tpcHit = (AliTPChit*)NextHit();
} // end of loop over hits
} // end of loop over tracks
//
// store remaining track (the last one) if not empty
//
for(i=0;i0){
TVector &v = *tracks[i];
v(0) = previousTrack;
tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
row[i]->Add(tracks[i]);
}
else{
delete tracks[i];
tracks[i]=0;
}
}
delete [] tracks;
delete [] nofElectrons;
} // end of MakeSector
//_____________________________________________________________________________
void AliTPC::Init()
{
//
// Initialise TPC detector after definition of geometry
//
Int_t i;
//
printf("\n");
for(i=0;i<35;i++) printf("*");
printf(" TPC_INIT ");
for(i=0;i<35;i++) printf("*");
printf("\n");
//
for(i=0;i<80;i++) printf("*");
printf("\n");
}
//_____________________________________________________________________________
void AliTPC::MakeBranch(Option_t* option)
{
//
// Create Tree branches for the TPC.
//
Int_t buffersize = 4000;
char branchname[10];
sprintf(branchname,"%s",GetName());
AliDetector::MakeBranch(option);
char *d = strstr(option,"D");
if (fDigits && gAlice->TreeD() && d) {
gAlice->TreeD()->Branch(branchname,&fDigits, buffersize);
printf("Making Branch %s for digits\n",branchname);
}
if (fHitType&2) MakeBranch2(option); // MI change 14.09.2000
}
//_____________________________________________________________________________
void AliTPC::ResetDigits()
{
//
// Reset number of digits and the digits array for this detector
//
fNdigits = 0;
if (fDigits) fDigits->Clear();
}
//_____________________________________________________________________________
void AliTPC::SetSecAL(Int_t sec)
{
//---------------------------------------------------
// Activate/deactivate selection for lower sectors
//---------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
fSecAL = sec;
}
//_____________________________________________________________________________
void AliTPC::SetSecAU(Int_t sec)
{
//----------------------------------------------------
// Activate/deactivate selection for upper sectors
//---------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
fSecAU = sec;
}
//_____________________________________________________________________________
void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
{
//----------------------------------------
// Select active lower sectors
//----------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
fSecLows[0] = s1;
fSecLows[1] = s2;
fSecLows[2] = s3;
fSecLows[3] = s4;
fSecLows[4] = s5;
fSecLows[5] = s6;
}
//_____________________________________________________________________________
void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
Int_t s11 , Int_t s12)
{
//--------------------------------
// Select active upper sectors
//--------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
fSecUps[0] = s1;
fSecUps[1] = s2;
fSecUps[2] = s3;
fSecUps[3] = s4;
fSecUps[4] = s5;
fSecUps[5] = s6;
fSecUps[6] = s7;
fSecUps[7] = s8;
fSecUps[8] = s9;
fSecUps[9] = s10;
fSecUps[10] = s11;
fSecUps[11] = s12;
}
//_____________________________________________________________________________
void AliTPC::SetSens(Int_t sens)
{
//-------------------------------------------------------------
// Activates/deactivates the sensitive strips at the center of
// the pad row -- this is for the space-point resolution calculations
//-------------------------------------------------------------
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
fSens = sens;
}
void AliTPC::SetSide(Float_t side=0.)
{
// choice of the TPC side
fSide = side;
}
//____________________________________________________________________________
void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
Float_t p2,Float_t p3)
{
// gax mixture definition
fNoComp = nc;
fMixtComp[0]=c1;
fMixtComp[1]=c2;
fMixtComp[2]=c3;
fMixtProp[0]=p1;
fMixtProp[1]=p2;
fMixtProp[2]=p3;
}
//_____________________________________________________________________________
void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
{
//
// electron transport taking into account:
// 1. diffusion,
// 2.ExB at the wires
// 3. nonisochronity
//
// xyz and index must be already transformed to system 1
//
fTPCParam->Transform1to2(xyz,index);
//add diffusion
Float_t driftl=xyz[2];
if(driftl<0.01) driftl=0.01;
driftl=TMath::Sqrt(driftl);
Float_t sigT = driftl*(fTPCParam->GetDiffT());
Float_t sigL = driftl*(fTPCParam->GetDiffL());
xyz[0]=gRandom->Gaus(xyz[0],sigT);
xyz[1]=gRandom->Gaus(xyz[1],sigT);
xyz[2]=gRandom->Gaus(xyz[2],sigL);
// ExB
if (fTPCParam->GetMWPCReadout()==kTRUE){
Float_t x1=xyz[0];
fTPCParam->Transform2to2NearestWire(xyz,index);
Float_t dx=xyz[0]-x1;
xyz[1]+=dx*(fTPCParam->GetOmegaTau());
}
//add nonisochronity (not implemented yet)
}
//_____________________________________________________________________________
void AliTPC::Streamer(TBuffer &R__b)
{
//
// Stream an object of class AliTPC.
//
if (R__b.IsReading()) {
Version_t R__v = R__b.ReadVersion(); if (R__v) { }
AliDetector::Streamer(R__b);
R__b >> fTPCParam;
if (R__v < 2) return;
R__b >> fNsectors;
R__b >> fHitType;
} else {
R__b.WriteVersion(AliTPC::IsA());
AliDetector::Streamer(R__b);
R__b << fTPCParam;
R__b << fNsectors;
R__b << fHitType;
}
}
ClassImp(AliTPCdigit)
//_____________________________________________________________________________
AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
AliDigit(tracks)
{
//
// Creates a TPC digit object
//
fSector = digits[0];
fPadRow = digits[1];
fPad = digits[2];
fTime = digits[3];
fSignal = digits[4];
}
ClassImp(AliTPChit)
//_____________________________________________________________________________
AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
AliHit(shunt,track)
{
//
// Creates a TPC hit object
//
fSector = vol[0];
fPadRow = vol[1];
fX = hits[0];
fY = hits[1];
fZ = hits[2];
fQ = hits[3];
}
//________________________________________________________________________
// Additional code because of the AliTPCTrackHits
void AliTPC::MakeBranch2(Option_t *option)
{
//
// Create a new branch in the current Root Tree
// The branch of fHits is automatically split
// MI change 14.09.2000
if (fHitType&2==0) return;
char branchname[10];
sprintf(branchname,"%s2",GetName());
//
// Get the pointer to the header
char *cH = strstr(option,"H");
//
if (fTrackHits && gAlice->TreeH() && cH) {
// gAlice->TreeH()->Branch(branchname,&fTrackHits, fBufferSize);
AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHits,
gAlice->TreeH(),fBufferSize,1);
gAlice->TreeH()->GetListOfBranches()->Add(branch);
printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
}
}
void AliTPC::SetTreeAddress()
{
if (fHitType&1) AliDetector::SetTreeAddress();
if (fHitType&2) SetTreeAddress2();
}
void AliTPC::SetTreeAddress2()
{
//
// Set branch address for the TrackHits Tree
//
TBranch *branch;
char branchname[20];
sprintf(branchname,"%s2",GetName());
//
// Branch address for hit tree
TTree *treeH = gAlice->TreeH();
if (treeH) {
branch = treeH->GetBranch(branchname);
if (branch) branch->SetAddress(&fTrackHits);
}
}
void AliTPC::FinishPrimary()
{
if (fTrackHits) fTrackHits->FlushHitStack();
}
void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
{
//
// add hit to the list
TClonesArray &particles = *(gAlice->Particles());
Int_t rtrack;
if (fIshunt) {
int primary = gAlice->GetPrimary(track);
((TParticle *)particles[primary])->SetBit(kKeepBit);
rtrack=primary;
} else {
rtrack=track;
gAlice->FlagTrack(track);
}
//AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
//if (hit->fTrack!=rtrack)
// cout<<"bad track number\n";
if (fTrackHits)
fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
hits[1],hits[2],(Int_t)hits[3]);
}
void AliTPC::ResetHits()
{
if (fHitType&1) AliDetector::ResetHits();
if (fHitType&2) ResetHits2();
}
void AliTPC::ResetHits2()
{
//
//reset hits
if (fTrackHits) fTrackHits->Clear();
}
AliHit* AliTPC::FirstHit(Int_t track)
{
if (fHitType&2) return FirstHit2(track);
return AliDetector::FirstHit(track);
}
AliHit* AliTPC::NextHit()
{
if (fHitType&2) return NextHit2();
return AliDetector::NextHit();
}
AliHit* AliTPC::FirstHit2(Int_t track)
{
//
// Initialise the hit iterator
// Return the address of the first hit for track
// If track>=0 the track is read from disk
// while if track<0 the first hit of the current
// track is returned
//
if(track>=0) {
gAlice->ResetHits();
gAlice->TreeH()->GetEvent(track);
}
//
if (fTrackHits) {
fTrackHits->First();
return fTrackHits->GetHit();
}
else return 0;
}
AliHit* AliTPC::NextHit2()
{
//
//Return the next hit for the current track
if (fTrackHits) {
fTrackHits->Next();
return fTrackHits->GetHit();
}
else
return 0;
}
void AliTPC::LoadPoints(Int_t)
{
//
Int_t a = 0;
if(fHitType==1) return AliDetector::LoadPoints(a);
LoadPoints2(a);
// LoadPoints3(a);
}
void AliTPC::RemapTrackHitIDs(Int_t *map)
{
if (!fTrackHits) return;
AliObjectArray * arr = fTrackHits->fTrackHitsInfo;
for (UInt_t i=0;iGetSize();i++){
AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
info->fTrackID = map[info->fTrackID];
}
}
//_____________________________________________________________________________
void AliTPC::LoadPoints2(Int_t)
{
//
// Store x, y, z of all hits in memory
//
if (fTrackHits == 0) return;
//
Int_t nhits = fTrackHits->GetEntriesFast();
if (nhits == 0) return;
Int_t tracks = gAlice->GetNtrack();
if (fPoints == 0) fPoints = new TObjArray(tracks);
AliHit *ahit;
//
Int_t *ntrk=new Int_t[tracks];
Int_t *limi=new Int_t[tracks];
Float_t **coor=new Float_t*[tracks];
for(Int_t i=0;iUncheckedAt(hit);
trk=ahit->GetTrack();
if(ntrk[trk]==limi[trk]) {
//
// Initialise a new track
fp=new Float_t[3*(limi[trk]+chunk)];
if(coor[trk]) {
memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
delete [] coor[trk];
}
limi[trk]+=chunk;
coor[trk] = fp;
} else {
fp = coor[trk];
}
fp[3*ntrk[trk] ] = ahit->X();
fp[3*ntrk[trk]+1] = ahit->Y();
fp[3*ntrk[trk]+2] = ahit->Z();
ntrk[trk]++;
ahit = NextHit2();
}
//
for(trk=0; trkSetMarkerColor(GetMarkerColor());
points->SetMarkerSize(GetMarkerSize());
points->SetDetector(this);
points->SetParticle(trk);
points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
fPoints->AddAt(points,trk);
delete [] coor[trk];
coor[trk]=0;
}
}
delete [] coor;
delete [] ntrk;
delete [] limi;
}
//_____________________________________________________________________________
void AliTPC::LoadPoints3(Int_t)
{
//
// Store x, y, z of all hits in memory
// - only intersection point with pad row
if (fTrackHits == 0) return;
//
Int_t nhits = fTrackHits->GetEntriesFast();
if (nhits == 0) return;
Int_t tracks = gAlice->GetNtrack();
if (fPoints == 0) fPoints = new TObjArray(2*tracks);
fPoints->Expand(2*tracks);
AliHit *ahit;
//
Int_t *ntrk=new Int_t[tracks];
Int_t *limi=new Int_t[tracks];
Float_t **coor=new Float_t*[tracks];
for(Int_t i=0;iUncheckedAt(hit);
trk=ahit->GetTrack();
Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
if (currentrow!=lastrow){
lastrow = currentrow;
//later calculate intersection point
if(ntrk[trk]==limi[trk]) {
//
// Initialise a new track
fp=new Float_t[3*(limi[trk]+chunk)];
if(coor[trk]) {
memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
delete [] coor[trk];
}
limi[trk]+=chunk;
coor[trk] = fp;
} else {
fp = coor[trk];
}
fp[3*ntrk[trk] ] = ahit->X();
fp[3*ntrk[trk]+1] = ahit->Y();
fp[3*ntrk[trk]+2] = ahit->Z();
ntrk[trk]++;
}
ahit = NextHit2();
}
//
for(trk=0; trkSetMarkerColor(GetMarkerColor()+1);
points->SetMarkerStyle(5);
points->SetMarkerSize(0.2);
points->SetDetector(this);
points->SetParticle(trk);
// points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
points->SetPolyMarker(ntrk[trk],coor[trk],30);
fPoints->AddAt(points,tracks+trk);
delete [] coor[trk];
coor[trk]=0;
}
}
delete [] coor;
delete [] ntrk;
delete [] limi;
}
void AliTPC::FindTrackHitsIntersection(TClonesArray * arr)
{
//
//fill clones array with intersection of current point with the
//middle of the row
Int_t sector;
Int_t ipart;
const Int_t kcmaxhits=30000;
TVector * xxxx = new TVector(kcmaxhits*4);
TVector & xxx = *xxxx;
Int_t maxhits = kcmaxhits;
//
AliTPChit * tpcHit=0;
tpcHit = (AliTPChit*)FirstHit2(-1);
Int_t currentIndex=0;
Int_t lastrow=-1; //last writen row
while (tpcHit){
if (tpcHit==0) continue;
sector=tpcHit->fSector; // sector number
ipart=tpcHit->Track();
//find row number
Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
Int_t index[3]={1,sector,0};
Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
if (currentrow<0) continue;
if (lastrow<0) lastrow=currentrow;
if (currentrow==lastrow){
if ( currentIndex>=maxhits){
maxhits+=kcmaxhits;
xxx.ResizeTo(4*maxhits);
}
xxx(currentIndex*4)=x[0];
xxx(currentIndex*4+1)=x[1];
xxx(currentIndex*4+2)=x[2];
xxx(currentIndex*4+3)=tpcHit->fQ;
currentIndex++;
}
else
if (currentIndex>2){
Float_t sumx=0;
Float_t sumx2=0;
Float_t sumx3=0;
Float_t sumx4=0;
Float_t sumy=0;
Float_t sumxy=0;
Float_t sumx2y=0;
Float_t sumz=0;
Float_t sumxz=0;
Float_t sumx2z=0;
Float_t sumq=0;
for (Int_t index=0;indexGetNPads(sector,lastrow)-1)/2;
Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx3-sumx2*sumx2);
Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
sumx2*(sumxy*sumx3-sumx2y*sumx2);
Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
sumx2*(sumxz*sumx3-sumx2z*sumx2);
Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx2y-sumx2*sumxy);
Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx2z-sumx2*sumxz);
Float_t y=detay/det+centralPad;
Float_t z=detaz/det;
Float_t by=detby/det; //y angle
Float_t bz=detbz/det; //z angle
sumy/=Float_t(currentIndex);
sumz/=Float_t(currentIndex);
AliComplexCluster cl;
cl.fX=z;
cl.fY=y;
cl.fQ=sumq;
cl.fSigmaX2=bz;
cl.fSigmaY2=by;
cl.fTracks[0]=ipart;
AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
if (row!=0) row->InsertCluster(&cl);
currentIndex=0;
lastrow=currentrow;
} //end of calculating cluster for given row
} // end of loop over hits
xxxx->Delete();
}