//-----------------------------------------------------------------
#include "TClonesArray.h"
#include "AliTPCseed.h"
+#include "AliTPCReconstructor.h"
+#include "AliTPCClusterParam.h"
ClassImp(AliTPCseed)
-AliTPCseed::AliTPCseed():AliTPCtrack(){
+AliTPCseed::AliTPCseed():
+ AliTPCtrack(),
+ fEsd(0x0),
+ fClusterOwner(kFALSE),
+ fPoints(0x0),
+ fEPoints(0x0),
+ fRow(0),
+ fSector(-1),
+ fRelativeSector(-1),
+ fCurrentSigmaY2(1e10),
+ fCurrentSigmaZ2(1e10),
+ fErrorY2(1e10),
+ fErrorZ2(1e10),
+ fCurrentCluster(0x0),
+ fCurrentClusterIndex1(-1),
+ fInDead(kFALSE),
+ fIsSeeding(kFALSE),
+ fNoCluster(0),
+ fSort(0),
+ fBSigned(kFALSE),
+ fSeedType(0),
+ fSeed1(-1),
+ fSeed2(-1),
+ fMAngular(0),
+ fCircular(0),
+ fClusterMap(159),
+ fSharedMap(159)
+{
//
- fRow=0;
- fRemoval =0;
- for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3);
+ for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0;
- for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
- fPoints = 0;
- fEPoints = 0;
- fNFoundable =0;
- fNShared =0;
- fRemoval = 0;
- fSort =0;
- fFirstPoint =0;
- fNoCluster =0;
- fBSigned = kFALSE;
- fSeed1 =-1;
- fSeed2 =-1;
- fCurrentCluster =0;
- fCurrentSigmaY2=0;
- fCurrentSigmaZ2=0;
- fCircular = 0; // not curling track
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2;
+ for (Int_t i=0;i<4;i++) {
+ fDEDX[i] = 0.;
+ fSDEDX[i] = 1e10;
+ fNCDEDX[i] = 0;
+ }
+ for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
+ // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
+ //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
+ fClusterMap.ResetAllBits(kFALSE);
+ fSharedMap.ResetAllBits(kFALSE);
+
}
-AliTPCseed::AliTPCseed(const AliTPCseed &s):AliTPCtrack(s){
+
+AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner):
+ AliTPCtrack(s),
+ fEsd(0x0),
+ fClusterOwner(clusterOwner),
+ fPoints(0x0),
+ fEPoints(0x0),
+ fRow(0),
+ fSector(-1),
+ fRelativeSector(-1),
+ fCurrentSigmaY2(1e10),
+ fCurrentSigmaZ2(1e10),
+ fErrorY2(1e10),
+ fErrorZ2(1e10),
+ fCurrentCluster(0x0),
+ fCurrentClusterIndex1(-1),
+ fInDead(kFALSE),
+ fIsSeeding(kFALSE),
+ fNoCluster(0),
+ fSort(0),
+ fBSigned(kFALSE),
+ fSeedType(0),
+ fSeed1(-1),
+ fSeed2(-1),
+ fMAngular(0),
+ fCircular(0),
+ fClusterMap(s.fClusterMap),
+ fSharedMap(s.fSharedMap)
+{
//---------------------
// dummy copy constructor
//-------------------------
- for (Int_t i=0;i<160;i++) fClusterPointer[i] = s.fClusterPointer[i];
+ for (Int_t i=0;i<160;i++) {
+ fClusterPointer[i]=0;
+ if (fClusterOwner){
+ if (s.fClusterPointer[i])
+ fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i]));
+ }else{
+ fClusterPointer[i] = s.fClusterPointer[i];
+ }
+ fTrackPoints[i] = s.fTrackPoints[i];
+ }
for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i];
+ for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i];
+ for (Int_t i=0;i<4;i++) {
+ fDEDX[i] = s.fDEDX[i];
+ fSDEDX[i] = s.fSDEDX[i];
+ fNCDEDX[i] = s.fNCDEDX[i];
+ }
+ for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i];
- fPoints = 0;
- fEPoints = 0;
- fCircular =0;
}
-AliTPCseed::AliTPCseed(const AliTPCtrack &t):AliTPCtrack(t){
- //
- //copy constructor
- fPoints = 0;
- fEPoints = 0;
- fNShared =0;
- // fTrackPoints =0;
- fRemoval =0;
- fSort =0;
- for (Int_t i=0;i<3;i++) fKinkIndexes[i]=t.GetKinkIndex(i);
+
+AliTPCseed::AliTPCseed(const AliTPCtrack &t):
+ AliTPCtrack(t),
+ fEsd(0x0),
+ fClusterOwner(kFALSE),
+ fPoints(0x0),
+ fEPoints(0x0),
+ fRow(0),
+ fSector(-1),
+ fRelativeSector(-1),
+ fCurrentSigmaY2(1e10),
+ fCurrentSigmaZ2(1e10),
+ fErrorY2(1e10),
+ fErrorZ2(1e10),
+ fCurrentCluster(0x0),
+ fCurrentClusterIndex1(-1),
+ fInDead(kFALSE),
+ fIsSeeding(kFALSE),
+ fNoCluster(0),
+ fSort(0),
+ fBSigned(kFALSE),
+ fSeedType(0),
+ fSeed1(-1),
+ fSeed2(-1),
+ fMAngular(0),
+ fCircular(0),
+ fClusterMap(159),
+ fSharedMap(159)
+{
+ //
+ // Constructor from AliTPCtrack
+ //
+ fFirstPoint =0;
+ for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
for (Int_t i=0;i<160;i++) {
fClusterPointer[i] = 0;
Int_t index = t.GetClusterIndex(i);
SetClusterIndex2(i,-3);
}
}
- fFirstPoint =0;
- fNoCluster =0;
- fBSigned = kFALSE;
- fSeed1 =-1;
- fSeed2 =-1;
- fCurrentCluster =0;
- fCurrentSigmaY2=0;
- fCurrentSigmaZ2=0;
- fCircular =0;
+ for (Int_t i=0;i<4;i++) {
+ fDEDX[i] = 0.;
+ fSDEDX[i] = 1e10;
+ fNCDEDX[i] = 0;
+ }
+ for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
+
+ //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
+ //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
+ fClusterMap.ResetAllBits(kFALSE);
+ fSharedMap.ResetAllBits(kFALSE);
+
}
-AliTPCseed::AliTPCseed(UInt_t index, const Double_t xx[5], const Double_t cc[15],
- Double_t xr, Double_t alpha):
- AliTPCtrack(index, xx, cc, xr, alpha) {
- //
+AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5],
+ const Double_t cc[15], Int_t index):
+ AliTPCtrack(xr, alpha, xx, cc, index),
+ fEsd(0x0),
+ fClusterOwner(kFALSE),
+ fPoints(0x0),
+ fEPoints(0x0),
+ fRow(0),
+ fSector(-1),
+ fRelativeSector(-1),
+ fCurrentSigmaY2(1e10),
+ fCurrentSigmaZ2(1e10),
+ fErrorY2(1e10),
+ fErrorZ2(1e10),
+ fCurrentCluster(0x0),
+ fCurrentClusterIndex1(-1),
+ fInDead(kFALSE),
+ fIsSeeding(kFALSE),
+ fNoCluster(0),
+ fSort(0),
+ fBSigned(kFALSE),
+ fSeedType(0),
+ fSeed1(-1),
+ fSeed2(-1),
+ fMAngular(0),
+ fCircular(0),
+ fClusterMap(159),
+ fSharedMap(159)
+{
//
- //constructor
- fRow =0;
- for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3);
+ // Constructor
+ //
+ fFirstPoint =0;
+ for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
- for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0;
for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
-
- fPoints = 0;
- fEPoints = 0;
- fNFoundable =0;
- fNShared = 0;
- // fTrackPoints =0;
- fRemoval =0;
- fSort =0;
- fFirstPoint =0;
- // fHelixIn = new TClonesArray("AliHelix",0);
- //fHelixOut = new TClonesArray("AliHelix",0);
- fNoCluster =0;
- fBSigned = kFALSE;
- fSeed1 =-1;
- fSeed2 =-1;
- fCurrentCluster =0;
- fCurrentSigmaY2=0;
- fCurrentSigmaZ2=0;
+ for (Int_t i=0;i<4;i++) {
+ fDEDX[i] = 0.;
+ fSDEDX[i] = 1e10;
+ fNCDEDX[i] = 0;
+ }
+ for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
}
AliTPCseed::~AliTPCseed(){
if (fEPoints) delete fEPoints;
fEPoints = 0;
fNoCluster =0;
-}
+ if (fClusterOwner){
+ for (Int_t icluster=0; icluster<160; icluster++){
+ delete fClusterPointer[icluster];
+ }
+ }
+}
+//_________________________________________________
+AliTPCseed & AliTPCseed::operator=(const AliTPCseed ¶m)
+{
+ //
+ // assignment operator
+ //
+ if(this!=¶m){
+ AliTPCtrack::operator=(param);
+ fEsd =param.fEsd;
+ for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed
+ fClusterOwner = param.fClusterOwner;
+ // leave out fPoint, they are also not copied in the copy ctor...
+ // but deleted in the dtor... strange...
+ // fPoints =
+ // fEPoints =
+ fRow = param.fRow;
+ fSector = param.fSector;
+ fRelativeSector = param.fRelativeSector;
+ fCurrentSigmaY2 = param.fCurrentSigmaY2;
+ fCurrentSigmaZ2 = param.fCurrentSigmaZ2;
+ fErrorY2 = param.fErrorY2;
+ fErrorZ2 = param.fErrorZ2;
+ fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed
+ fCurrentClusterIndex1 = param.fCurrentClusterIndex1;
+ fInDead = param.fInDead;
+ fIsSeeding = param.fIsSeeding;
+ fNoCluster = param.fNoCluster;
+ fSort = param.fSort;
+ fBSigned = param.fBSigned;
+ for(Int_t i = 0;i<4;++i){
+ fDEDX[i] = param.fDEDX[i];
+ fSDEDX[i] = param.fSDEDX[i];
+ fNCDEDX[i] = param.fNCDEDX[i];
+ }
+ for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i];
+
+ fSeedType = param.fSeedType;
+ fSeed1 = param.fSeed1;
+ fSeed2 = param.fSeed2;
+ for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i];
+ fMAngular = param.fMAngular;
+ fCircular = param.fCircular;
+ for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i];
+ fClusterMap = param.fClusterMap;
+ fSharedMap = param.fSharedMap;
+ }
+ return (*this);
+}
+//____________________________________________________
AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i)
{
//
AliTPCclusterMI cldummy;
cldummy.SetQ(0);
AliTPCTrackPoint pdummy;
- pdummy.GetTPoint().fIsShared = 10;
+ pdummy.GetTPoint().SetShared(10);
for (Int_t i=0;i<160;i++){
AliTPCclusterMI * cl0 = fClusterPointer[i];
AliTPCTrackPoint *trpoint = (AliTPCTrackPoint*)fPoints->UncheckedAt(i);
for (Int_t i=first;i<last; i++){
Int_t index = GetClusterIndex2(i);
if (index!=-1) foundable++;
+ if (index&0x8000) continue;
if (fClusterPointer[i]) {
found++;
}
SetNumberOfClusters(0);
fNFoundable = 0;
SetChi2(0);
- ResetCovariance();
+ ResetCovariance(10.);
/*
if (fTrackPoints){
for (Int_t i=0;i<8;i++){
//This function makes a track forget its history :)
//------------------------------------------------------------------
if (factor<=0) {
- ResetCovariance();
+ ResetCovariance(10.);
return;
}
- fC00*=factor;
- fC10*=0; fC11*=factor;
- fC20*=0; fC21*=0; fC22*=factor;
- fC30*=0; fC31*=0; fC32*=0; fC33*=factor;
- fC40*=0; fC41*=0; fC42*=0; fC43*=0; fC44*=factor;
+ ResetCovariance(factor);
+
SetNumberOfClusters(0);
fNFoundable =0;
SetChi2(0);
// doesn't change internal state of the track
//-----------------------------------------------------------------
- Double_t x1=fX, x2=x1+(xk-x1), dx=x2-x1;
+ Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1;
- if (TMath::Abs(fP4*xk - fP2) >= 0.999) {
+ if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) {
return 0;
}
// Double_t y1=fP0, z1=fP1;
- Double_t c1=fP4*x1 - fP2, r1=sqrt(1.- c1*c1);
- Double_t c2=fP4*x2 - fP2, r2=sqrt(1.- c2*c2);
+ Double_t c1=GetSnp(), r1=sqrt(1.- c1*c1);
+ Double_t c2=c1 + GetC()*dx, r2=sqrt(1.- c2*c2);
- y = fP0;
- z = fP1;
+ y = GetY();
+ z = GetZ();
//y += dx*(c1+c2)/(r1+r2);
//z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3;
Double_t dy = dx*(c1+c2)/(r1+r2);
Double_t dz = 0;
//
- Double_t delta = fP4*dx*(c1+c2)/(c1*r2 + c2*r1);
+ Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1);
/*
if (TMath::Abs(delta)>0.0001){
dz = fP3*TMath::ASin(delta)/fP4;
}
*/
// dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4;
- dz = fP3*TMath::ASin(delta)/fP4;
+ dz = GetTgl()*TMath::ASin(delta)/GetC();
//
y+=dy;
z+=dz;
//_____________________________________________________________________________
-Double_t AliTPCseed::GetPredictedChi2(const AliTPCclusterMI *c) const
+Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const
{
//-----------------------------------------------------------------
// This function calculates a predicted chi2 increment.
//-----------------------------------------------------------------
- //Double_t r00=c->GetSigmaY2(), r01=0., r11=c->GetSigmaZ2();
- Double_t r00=fErrorY2, r01=0., r11=fErrorZ2;
- r00+=fC00; r01+=fC10; r11+=fC11;
-
- Double_t det=r00*r11 - r01*r01;
- if (TMath::Abs(det) < 1.e-10) {
- //Int_t n=GetNumberOfClusters();
- //if (n>4) cerr<<n<<" AliKalmanTrack warning: Singular matrix !\n";
- return 1e10;
- }
- Double_t tmp=r00; r00=r11; r11=tmp; r01=-r01;
-
- Double_t dy=c->GetY() - fP0, dz=c->GetZ() - fP1;
-
- return (dy*r00*dy + 2*r01*dy*dz + dz*r11*dz)/det;
+ Double_t p[2]={c->GetY(), c->GetZ()};
+ Double_t cov[3]={fErrorY2, 0., fErrorZ2};
+ return AliExternalTrackParam::GetPredictedChi2(p,cov);
}
-
//_________________________________________________________________________________________
}
else {
Float_t f2 =1;
- f2 = 1-20*TMath::Sqrt(t->fC44)/(TMath::Abs(t->GetC())+0.0066);
+ f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066);
if (t->fBConstrain) f2=1.2;
Float_t f1 =1;
- f1 = 1-20*TMath::Sqrt(fC44)/(TMath::Abs(GetC())+0.0066);
+ f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066);
if (fBConstrain) f1=1.2;
//_____________________________________________________________________________
-Int_t AliTPCseed::Update(const AliTPCclusterMI *c, Double_t chisq, UInt_t /*index*/) {
+Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t /*index*/)
+{
//-----------------------------------------------------------------
// This function associates a cluster with this track.
//-----------------------------------------------------------------
- Double_t r00=fErrorY2, r01=0., r11=fErrorZ2;
-
- r00+=fC00; r01+=fC10; r11+=fC11;
- Double_t det=r00*r11 - r01*r01;
- Double_t tmp=r00; r00=r11/det; r11=tmp/det; r01=-r01/det;
-
- Double_t k00=fC00*r00+fC10*r01, k01=fC00*r01+fC10*r11;
- Double_t k10=fC10*r00+fC11*r01, k11=fC10*r01+fC11*r11;
- Double_t k20=fC20*r00+fC21*r01, k21=fC20*r01+fC21*r11;
- Double_t k30=fC30*r00+fC31*r01, k31=fC30*r01+fC31*r11;
- Double_t k40=fC40*r00+fC41*r01, k41=fC40*r01+fC41*r11;
-
- Double_t dy=c->GetY() - fP0, dz=c->GetZ() - fP1;
- Double_t cur=fP4 + k40*dy + k41*dz, eta=fP2 + k20*dy + k21*dz;
- if (TMath::Abs(cur*fX-eta) >= 0.9) {
- return 0;
- }
-
- fP0 += k00*dy + k01*dz;
- fP1 += k10*dy + k11*dz;
- fP2 = eta;
- fP3 += k30*dy + k31*dz;
- fP4 = cur;
-
- Double_t c01=fC10, c02=fC20, c03=fC30, c04=fC40;
- Double_t c12=fC21, c13=fC31, c14=fC41;
-
- fC00-=k00*fC00+k01*fC10; fC10-=k00*c01+k01*fC11;
- fC20-=k00*c02+k01*c12; fC30-=k00*c03+k01*c13;
- fC40-=k00*c04+k01*c14;
-
- fC11-=k10*c01+k11*fC11;
- fC21-=k10*c02+k11*c12; fC31-=k10*c03+k11*c13;
- fC41-=k10*c04+k11*c14;
-
- fC22-=k20*c02+k21*c12; fC32-=k20*c03+k21*c13;
- fC42-=k20*c04+k21*c14;
+ Double_t p[2]={c->GetY(), c->GetZ()};
+ Double_t cov[3]={fErrorY2, 0., fErrorZ2};
- fC33-=k30*c03+k31*c13;
- fC43-=k40*c03+k41*c13;
-
- fC44-=k40*c04+k41*c14;
+ if (!AliExternalTrackParam::Update(p,cov)) return kFALSE;
Int_t n=GetNumberOfClusters();
// fIndex[n]=index;
SetNumberOfClusters(n+1);
SetChi2(GetChi2()+chisq);
- return 1;
+ return kTRUE;
}
//_____________________________________________________________________________
-void AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t onlyused) {
+Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t onlyused) {
//-----------------------------------------------------------------
// This funtion calculates dE/dX within the "low" and "up" cuts.
//-----------------------------------------------------------------
}
else{
SetdEdx(0);
- return;
+ return 0;
}
// Float_t dedx1 =dedx;
/*
SetdEdx(dedx);
-
- //mi deDX
-
-
-
- //Very rough PID
- Double_t p=TMath::Sqrt((1.+ GetTgl()*GetTgl())/(Get1Pt()*Get1Pt()));
-
- if (p<0.6) {
- if (dedx < 39.+ 12./(p+0.25)/(p+0.25)) { SetMass(0.13957); return;}
- if (dedx < 39.+ 12./p/p) { SetMass(0.49368); return;}
- SetMass(0.93827); return;
- }
-
- if (p<1.2) {
- if (dedx < 39.+ 12./(p+0.25)/(p+0.25)) { SetMass(0.13957); return;}
- SetMass(0.93827); return;
- }
-
- SetMass(0.13957); return;
-
+ return dedx;
}
Double_t AliTPCseed::Bethe(Double_t bg){
//
Double_t sumr =0;
for (Int_t j=0; j<ns; j++) {
Double_t mass=AliPID::ParticleMass(j);
- Double_t mom=P();
+ Double_t mom=GetP();
Double_t dedx=fdEdx/fMIP;
Double_t bethe=Bethe(mom/mass);
Double_t sigma=fRes*bethe;
}
*/
+Double_t AliTPCseed::GetYat(Double_t xk) const {
+//-----------------------------------------------------------------
+// This function calculates the Y-coordinate of a track at the plane x=xk.
+//-----------------------------------------------------------------
+ if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06
+ Double_t c1=GetSnp(), r1=TMath::Sqrt(1.- c1*c1);
+ Double_t c2=c1+GetC()*(xk-GetX());
+ if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0;
+ Double_t r2=TMath::Sqrt(1.- c2*c2);
+ return GetY() + (xk-GetX())*(c1+c2)/(r1+r2);
+}
+
+void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state)
+{
+ fClusterMap[ibit] = state;
+}
+Bool_t AliTPCseed::GetClusterMapBit(int ibit)
+{
+ return fClusterMap[ibit];
+}
+void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state)
+{
+ fSharedMap[ibit] = state;
+}
+Bool_t AliTPCseed::GetSharedMapBit(int ibit)
+{
+ return fSharedMap[ibit];
+}
+
+
+
+
+
+Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2){
+
+ //
+ // calculates dedx using the cluster
+ // low - up specify trunc mean range - default form 0-0.7
+ // type - 1 - max charge or 0- total charge in cluster
+ // //2- max no corr 3- total+ correction
+ // i1-i2 - the pad-row range used for calculation
+ //
+ // normalization parametrization taken from AliTPCClusterParam
+ //
+ AliTPCClusterParam * parcl = AliTPCClusterParam::Instance();
+ if (!parcl) return 0;
+ Float_t amp[160];
+ Int_t indexes[160];
+ Int_t ncl=0;
+ //
+ //
+ const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
+ const Float_t kedgey =4.;
+ //
+ for (Int_t irow=i1; irow<i2; irow++){
+ AliTPCclusterMI* cluster = GetClusterPointer(irow);
+ if (!cluster) continue;
+ if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
+ Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
+ //do normalization
+ Float_t corr=1;
+ Int_t ipad= 0;
+ if (irow>62) ipad=1;
+ if (irow>127) ipad=2;
+ if (type<=1){
+ //
+ AliTPCTrackerPoint * point = GetTrackPoint(irow);
+ Float_t ty = TMath::Abs(point->GetAngleY());
+ Float_t tz = TMath::Abs(point->GetAngleZ());
+
+ Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
+ corr = parcl->Qnorm(ipad,type,dr,ty,tz);
+ }
+ amp[ncl]=charge/corr;
+
+ amp[ncl] *= 2.0; // put mean value to channel 50
+ if (ipad==0) {
+ amp[ncl] /= 0.65; // this we will take form OCDB
+ } else
+ if (ipad==2){
+ amp[ncl] /=1.57;
+ }else{
+ }
+ ncl++;
+ }
+
+ if (type>3) return ncl;
+ TMath::Sort(ncl,amp, indexes, kFALSE);
+
+ if (ncl<10) return 0;
+
+ Float_t suma=0;
+ Float_t sumn=0;
+ Int_t icl0=TMath::Nint(ncl*low);
+ Int_t icl1=TMath::Nint(ncl*up);
+ for (Int_t icl=icl0; icl<icl1;icl++){
+ suma+=amp[indexes[icl]];
+ sumn++;
+ }
+ return suma/sumn;
+
+}
+
+Double_t AliTPCseed::BetheMass(Double_t mass){
+ //
+ // return bethe-bloch
+ //
+ Float_t bg= P()/mass;
+ const Double_t kp1=0.76176e-1;
+ const Double_t kp2=10.632;
+ const Double_t kp3=0.13279e-4;
+ const Double_t kp4=1.8631;
+ const Double_t kp5=1.9479;
+
+ Double_t dbg = (Double_t) bg;
+
+ Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg);
+
+ Double_t aa = TMath::Power(beta,kp4);
+ Double_t bb = TMath::Power(1./dbg,kp5);
+
+ bb=TMath::Log(kp3+bb);
+
+ return ((Float_t)((kp2-aa-bb)*kp1/aa));
+}
+
+
+Float_t AliTPCseed::CookShape(Int_t type){
+ //
+ //
+ //
+ //-----------------------------------------------------------------
+ // This funtion calculates dE/dX within the "low" and "up" cuts.
+ //-----------------------------------------------------------------
+ Float_t means=0;
+ Float_t meanc=0;
+ for (Int_t i =0; i<160;i++) {
+ AliTPCTrackerPoint * point = GetTrackPoint(i);
+ if (point==0) continue;
+
+ AliTPCclusterMI * cl = fClusterPointer[i];
+ if (cl==0) continue;
+
+ Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
+ Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ());
+ Float_t rsigma = (rsigmay+rsigmaz)*0.5;
+ if (type==0) means+=rsigma;
+ if (type==1) means+=rsigmay;
+ if (type==2) means+=rsigmaz;
+ meanc++;
+ }
+ Float_t mean = (meanc>0)? means/meanc:0;
+ return mean;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff