* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-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
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
// //
///////////////////////////////////////////////////////////////////////////////
+//
+
+#include <Riostream.h>
+#include <stdlib.h>
+
+#include <TFile.h>
+#include <TGeometry.h>
+#include <TInterpreter.h>
#include <TMath.h>
-#include <TRandom.h>
-#include <TVector.h>
#include <TMatrix.h>
-#include <TGeometry.h>
#include <TNode.h>
-#include <TTUBS.h>
#include <TObjectTable.h>
-#include "TParticle.h"
-#include "AliTPC.h"
-#include "AliRun.h"
-#include <iostream.h>
-#include <fstream.h>
-#include "AliMC.h"
-
+#include <TParticle.h>
+#include <TROOT.h>
+#include <TRandom.h>
+#include <TSystem.h>
+#include <TTUBS.h>
+#include <TTree.h>
+#include <TVector.h>
+#include <TVirtualMC.h>
-#include "AliTPCParam.h"
-#include "AliTPCPRF2D.h"
-#include "AliTPCRF1D.h"
+#include "AliArrayBranch.h"
+#include "AliClusters.h"
+#include "AliComplexCluster.h"
#include "AliDigits.h"
+#include "AliMagF.h"
+#include "AliPoints.h"
+#include "AliRun.h"
+#include "AliRunLoader.h"
#include "AliSimDigits.h"
-
-#include "AliTPCDigitsArray.h"
-#include "AliCluster.h"
-#include "AliClusters.h"
-#include "AliTPCClustersRow.h"
+#include "AliTPC.h"
+#include "AliTPC.h"
#include "AliTPCClustersArray.h"
-
+#include "AliTPCClustersRow.h"
+#include "AliTPCDigitsArray.h"
+#include "AliTPCLoader.h"
+#include "AliTPCPRF2D.h"
+#include "AliTPCParamSR.h"
+#include "AliTPCRF1D.h"
+#include "AliTPCTrackHits.h"
+#include "AliTPCTrackHitsV2.h"
+#include "AliTPCcluster.h"
+#include "AliTrackReference.h"
ClassImp(AliTPC)
+//_____________________________________________________________________________
+// helper class for fast matrix and vector manipulation - no range checking
+// origin - Marian Ivanov
+
+class AliTPCFastMatrix : public TMatrix {
+public :
+ AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb);
+ inline Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
+ inline Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
+};
+
+AliTPCFastMatrix::AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb):
+ TMatrix(row_lwb, row_upb,col_lwb,col_upb)
+ {
+ };
+//_____________________________________________________________________________
+class AliTPCFastVector : public TVector {
+public :
+ AliTPCFastVector(Int_t size);
+ virtual ~AliTPCFastVector(){;}
+ inline Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
+
+};
+
+AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
+};
+
//_____________________________________________________________________________
AliTPC::AliTPC()
{
// Default constructor
//
fIshunt = 0;
- fClusters = 0;
fHits = 0;
fDigits = 0;
- fTracks = 0;
fNsectors = 0;
- fNtracks = 0;
- fNclusters= 0;
- //MI changes
fDigitsArray = 0;
fClustersArray = 0;
- fTPCParam = 0;
+ fDefaults = 0;
+ fTrackHits = 0;
+ fTrackHitsOld = 0;
+ fHitType = 2; //default CONTAINERS - based on ROOT structure
+ fTPCParam = 0;
+ fNoiseTable = 0;
+ fActiveSectors =0;
+
}
//_____________________________________________________________________________
//
// Initialise arrays of hits and digits
fHits = new TClonesArray("AliTPChit", 176);
- //MI change
+ gAlice->AddHitList(fHits);
fDigitsArray = 0;
fClustersArray= 0;
- fTPCParam = 0;
+ fDefaults = 0;
+ //
+ fTrackHits = new AliTPCTrackHitsV2;
+ fTrackHits->SetHitPrecision(0.002);
+ fTrackHits->SetStepPrecision(0.003);
+ fTrackHits->SetMaxDistance(100);
+
+ fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
+ fTrackHitsOld->SetHitPrecision(0.002);
+ fTrackHitsOld->SetStepPrecision(0.003);
+ fTrackHitsOld->SetMaxDistance(100);
+
+ fNoiseTable =0;
+
+ fHitType = 2;
+ fActiveSectors = 0;
//
// Initialise counters
- fClusters = 0;
- fTracks = 0;
fNsectors = 0;
- fNtracks = 0;
- fNclusters= 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;
+ }
+
}
//_____________________________________________________________________________
//
// TPC destructor
//
+
fIshunt = 0;
delete fHits;
delete fDigits;
- delete fClusters;
- delete fTracks;
- if (fDigitsArray!=0) delete fDigitsArray;
- if (fClustersArray!=0) delete fClustersArray;
+ delete fTPCParam;
+ delete fTrackHits; //MI 15.09.2000
+ delete fTrackHitsOld; //MI 10.12.2001
+ if (fNoiseTable) delete [] fNoiseTable;
- if (fTPCParam) delete fTPCParam;
}
-//_____________________________________________________________________________
-void AliTPC::AddCluster(Float_t *hits, Int_t *tracks)
-{
- //
- // Add a simulated cluster to the list
- //
- if(!fClusters) fClusters=new TClonesArray("AliTPCcluster",10000);
- TClonesArray &lclusters = *fClusters;
- new(lclusters[fNclusters++]) AliTPCcluster(hits,tracks);
-}
-
-//_____________________________________________________________________________
-void AliTPC::AddCluster(const AliTPCcluster &c)
-{
- //
- // Add a simulated cluster copy to the list
- //
- if(!fClusters) fClusters=new TClonesArray("AliTPCcluster",900000);
- TClonesArray &lclusters = *fClusters;
- new(lclusters[fNclusters++]) AliTPCcluster(c);
-}
-
//_____________________________________________________________________________
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);
-}
-
-//_____________________________________________________________________________
-void AliTPC::AddTrack(Float_t *hits)
-{
- //
- // Add a track to the list of tracks
- //
- TClonesArray <racks = *fTracks;
- new(ltracks[fNtracks++]) AliTPCtrack(hits);
-}
-
-//_____________________________________________________________________________
-void AliTPC::AddTrack(const AliTPCtrack& t)
-{
- //
- // Add a track copy to the list of tracks
- //
- if(!fTracks) fTracks=new TClonesArray("AliTPCtrack",10000);
- TClonesArray <racks = *fTracks;
- new(ltracks[fNtracks++]) AliTPCtrack(t);
+ // 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>1)
+ AddHit2(track,vol,hits);
}
//_____________________________________________________________________________
//
// Build TPC ROOT TNode geometry for the event display
//
- TNode *Node, *Top;
+ TNode *nNode, *nTop;
TTUBS *tubs;
Int_t i;
const int kColorTPC=19;
const Double_t kRaddeg=180./TMath::Pi();
- Float_t InnerOpenAngle = fTPCParam->GetInnerAngle();
- Float_t OuterOpenAngle = fTPCParam->GetOuterAngle();
+ Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
+ Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
- Float_t InnerAngleShift = fTPCParam->GetInnerAngleShift();
- Float_t OuterAngleShift = fTPCParam->GetOuterAngleShift();
+ 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 loAng = (Double_t)TMath::Nint(InnerOpenAngle*kRaddeg);
- const Double_t hiAng = (Double_t)TMath::Nint(OuterOpenAngle*kRaddeg);
- const Double_t loAngSh = (Double_t)TMath::Nint(InnerAngleShift*kRaddeg);
- const Double_t hiAngSh = (Double_t)TMath::Nint(OuterAngleShift*kRaddeg);
+ 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 loCorr = 1/TMath::Cos(0.5*loAng*kDegrad);
- const Double_t hiCorr = 1/TMath::Cos(0.5*hiAng*kDegrad);
+ 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
//
- Top=gAlice->GetGeometry()->GetNode("alice");
+ nTop=gAlice->GetGeometry()->GetNode("alice");
// inner sectors
sprintf(title,"TPC low sector %3d",i);
title[24]='\0';
- tubs = new TTUBS(name,title,"void",rl*loCorr,ru*loCorr,250.,
- loAng*(i-0.5)+loAngSh,loAng*(i+0.5)+loAngSh);
+ tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
+ kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
tubs->SetNumberOfDivisions(1);
- Top->cd();
- Node = new TNode(name,title,name,0,0,0,"");
- Node->SetLineColor(kColorTPC);
- fNodes->Add(Node);
+ nTop->cd();
+ nNode = new TNode(name,title,name,0,0,0,"");
+ nNode->SetLineColor(kColorTPC);
+ fNodes->Add(nNode);
}
// Outer sectors
name[4]='\0';
sprintf(title,"TPC upper sector %d",i);
title[24]='\0';
- tubs = new TTUBS(name,title,"void",rl*hiCorr,ru*hiCorr,250,
- hiAng*(i-0.5)+hiAngSh,hiAng*(i+0.5)+hiAngSh);
+ tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
+ khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
tubs->SetNumberOfDivisions(1);
- Top->cd();
- Node = new TNode(name,title,name,0,0,0,"");
- Node->SetLineColor(kColorTPC);
- fNodes->Add(Node);
+ 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 )
return 9999;
}
-//_____________________________________________________________________________
-static Double_t SigmaY2(Double_t r, Double_t tgl, Double_t pt)
-{
- //
- // Parametrised error of the cluster reconstruction (pad direction)
- //
- pt=TMath::Abs(pt)*1000.;
- Double_t x=r/pt;
- tgl=TMath::Abs(tgl);
- Double_t s=a_rphi - b_rphi*r*tgl + c_rphi*x*x + d_rphi*x;
- if (s<0.4e-3) s=0.4e-3;
- s*=1.3; //Iouri Belikov
- return s;
-}
-
-//_____________________________________________________________________________
-static Double_t SigmaZ2(Double_t r, Double_t tgl)
-{
- //
- // Parametrised error of the cluster reconstruction (drift direction)
- //
- tgl=TMath::Abs(tgl);
- Double_t s=a_z - b_z*r*tgl + c_z*tgl*tgl;
- if (s<0.4e-3) s=0.4e-3;
- s*=1.3; //Iouri Belikov
- return s;
-}
-
-//_____________________________________________________________________________
-inline Double_t f1(Double_t x1,Double_t y1,
- Double_t x2,Double_t y2,
- Double_t x3,Double_t y3)
-{
- //-----------------------------------------------------------------
- // Initial approximation of the track curvature
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Double_t d=(x2-x1)*(y3-y2)-(x3-x2)*(y2-y1);
- Double_t a=0.5*((y3-y2)*(y2*y2-y1*y1+x2*x2-x1*x1)-
- (y2-y1)*(y3*y3-y2*y2+x3*x3-x2*x2));
- Double_t b=0.5*((x2-x1)*(y3*y3-y2*y2+x3*x3-x2*x2)-
- (x3-x2)*(y2*y2-y1*y1+x2*x2-x1*x1));
-
- Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b);
-
- return -xr*yr/sqrt(xr*xr+yr*yr);
-}
-
-
-//_____________________________________________________________________________
-inline Double_t f2(Double_t x1,Double_t y1,
- Double_t x2,Double_t y2,
- Double_t x3,Double_t y3)
-{
- //-----------------------------------------------------------------
- // Initial approximation of the track curvature times center of curvature
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Double_t d=(x2-x1)*(y3-y2)-(x3-x2)*(y2-y1);
- Double_t a=0.5*((y3-y2)*(y2*y2-y1*y1+x2*x2-x1*x1)-
- (y2-y1)*(y3*y3-y2*y2+x3*x3-x2*x2));
- Double_t b=0.5*((x2-x1)*(y3*y3-y2*y2+x3*x3-x2*x2)-
- (x3-x2)*(y2*y2-y1*y1+x2*x2-x1*x1));
-
- Double_t xr=TMath::Abs(d/(d*x1-a)), yr=d/(d*y1-b);
-
- return -a/(d*y1-b)*xr/sqrt(xr*xr+yr*yr);
-}
-
-//_____________________________________________________________________________
-inline Double_t f3(Double_t x1,Double_t y1,
- Double_t x2,Double_t y2,
- Double_t z1,Double_t z2)
-{
- //-----------------------------------------------------------------
- // Initial approximation of the tangent of the track dip angle
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- return (z1 - z2)/sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
-}
-
-//_____________________________________________________________________________
-static Int_t FindProlongation(AliTPCtrack& t, const AliTPCSector *sec,
- Int_t s, Int_t rf=0)
-{
- //-----------------------------------------------------------------
- // This function tries to find a track prolongation.
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- const Int_t ROWS_TO_SKIP=(t<10) ? 10 : Int_t(0.5*sec->GetNRows());
- const Float_t MAX_CHI2=12.;
- Int_t try_again=ROWS_TO_SKIP;
- Double_t alpha=sec->GetAlpha();
- Int_t ns=Int_t(2*TMath::Pi()/alpha+0.5);
-
- for (Int_t nr=sec->GetRowNumber(t.GetX())-1; nr>=rf; nr--) {
- Double_t x=sec->GetX(nr), ymax=sec->GetMaxY(nr);
- if (!t.PropagateTo(x)) return 0;
-
- AliTPCcluster *cl=0;
- Double_t max_chi2=MAX_CHI2;
- const AliTPCRow& row=sec[s][nr];
- Double_t sy2=SigmaY2(t.GetX(),t.GetTgl(),t.GetPt());
- Double_t sz2=SigmaZ2(t.GetX(),t.GetTgl());
- Double_t road=5.*sqrt(t.GetSigmaY2() + sy2), y=t.GetY(), z=t.GetZ();
-
- if (road>30) {
- if (t>4) cerr<<t<<" FindProlongation warning: Too broad road !\n";
- return 0;
- }
-
- if (row) {
- for (Int_t i=row.Find(y-road); i<row; i++) {
- AliTPCcluster* c=(AliTPCcluster*)(row[i]);
- if (c->fY > y+road) break;
- if (c->IsUsed()) continue;
- if ((c->fZ - z)*(c->fZ - z) > 25.*(t.GetSigmaZ2() + sz2)) continue;
- Double_t chi2=t.GetPredictedChi2(c);
- if (chi2 > max_chi2) continue;
- max_chi2=chi2;
- cl=c;
- }
- }
- if (cl) {
- t.Update(cl,max_chi2);
- cl->fdEdX=sec->GetPadPitchWidth()*TMath::Sqrt((1+t.GetTgl()*t.GetTgl())/
- (1-(t.GetC()*x-t.GetEta())*(t.GetC()*x-t.GetEta())));
- try_again=ROWS_TO_SKIP;
- } else {
- if (try_again==0) break;
- if (y > ymax) {
- s = (s+1) % ns;
- if (!t.Rotate(alpha)) return 0;
- } else if (y <-ymax) {
- s = (s-1+ns) % ns;
- if (!t.Rotate(-alpha)) return 0;
- }
- try_again--;
- }
- }
-
- return 1;
-
-}
-
-
-//_____________________________________________________________________________
-static void MakeSeeds(TObjArray& seeds,const AliTPCSector *sec, Int_t max_sec,
-Int_t i1, Int_t i2)
-{
- //-----------------------------------------------------------------
- // This function creates track seeds.
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- TMatrix C(5,5); TVector x(5);
- Double_t alpha=sec->GetAlpha(), shift=sec->GetAlphaShift();
- Double_t cs=cos(alpha), sn=sin(alpha);
- for (Int_t ns=0; ns<max_sec; ns++) {
- Int_t nl=sec[(ns-1+max_sec)%max_sec][i2];
- Int_t nm=sec[ns][i2];
- Int_t nu=sec[(ns+1)%max_sec][i2];
- const AliTPCRow& r1=sec[ns][i1];
- for (Int_t is=0; is < r1; is++) {
- Double_t x1=sec->GetX(i1), y1=r1[is]->fY, z1=r1[is]->fZ;
- for (Int_t js=0; js < nl+nm+nu; js++) {
- const AliTPCcluster *cl;
- Int_t ks;
- Double_t x2=sec->GetX(i2), y2, z2, tmp;
-
- if (js<nl) {
- ks=(ns-1+max_sec)%max_sec;
- const AliTPCRow& r2=sec[(ns-1+max_sec)%max_sec][i2];
- cl=r2[js];
- y2=cl->fY; z2=cl->fZ;
- tmp= x2*cs+y2*sn;
- y2 =-x2*sn+y2*cs; x2=tmp;
- } else
- if (js<nl+nm) {
- ks=ns;
- const AliTPCRow& r2=sec[ns][i2];
- cl=r2[js-nl];
- y2=cl->fY; z2=cl->fZ;
- } else {
- ks=(ns+1)%max_sec;
- const AliTPCRow& r2=sec[(ns+1)%max_sec][i2];
- cl=r2[js-nl-nm];
- y2=cl->fY; z2=cl->fZ;
- tmp=x2*cs-y2*sn;
- y2 =x2*sn+y2*cs; x2=tmp;
- }
-
- Double_t zz=z1 - z1/x1*(x1-x2);
- if (TMath::Abs(zz-z2)>5) continue;
-
- Double_t d=(x2-x1)*(0.-y2)-(0.-x2)*(y2-y1);
- if (d==0.) {cerr<<"MakeSeeds warning: Straight seed !\n"; continue;}
-
- Double_t x3=0., y3=0.;//gRandom->Gaus(0.,TMath::Sqrt(cl->fSigmaY2));
-
- x(0)=y1;
- x(1)=z1;
- x(2)=f1(x1,y1,x2,y2,x3,y3);
- x(3)=f2(x1,y1,x2,y2,x3,y3);
- x(4)=f3(x1,y1,x2,y2,z1,z2);
-
- if (TMath::Abs(x(2)*x1-x(3)) >= 0.999) continue;
-
- if (TMath::Abs(x(4)) > 1.2) continue;
-
- Double_t a=asin(x(3));
- Double_t zv=z1 - x(4)/x(2)*(a+asin(x(2)*x1-x(3)));
- if (TMath::Abs(zv)>10.) continue;
-
- TMatrix X(6,6); X=0.;
- X(0,0)=r1[is]->fSigmaY2; X(1,1)=r1[is]->fSigmaZ2;
- X(2,2)=cl->fSigmaY2; X(3,3)=cl->fSigmaZ2;
- X(4,4)=cl->fSigmaY2; X(5,5)=cl->fSigmaZ2;
- //X(4,4)=3./12.; X(5,5)=3./12.;
- TMatrix F(5,6); F.UnitMatrix();
- Double_t sy=sqrt(X(0,0)), sz=sqrt(X(1,1));
- F(2,0)=(f1(x1,y1+sy,x2,y2,x3,y3)-x(2))/sy;
- F(2,2)=(f1(x1,y1,x2,y2+sy,x3,y3)-x(2))/sy;
- F(2,4)=(f1(x1,y1,x2,y2,x3,y3+sy)-x(2))/sy;
- F(3,0)=(f2(x1,y1+sy,x2,y2,x3,y3)-x(3))/sy;
- F(3,2)=(f2(x1,y1,x2,y2+sy,x3,y3)-x(3))/sy;
- F(3,4)=(f2(x1,y1,x2,y2,x3,y3+sy)-x(3))/sy;
- F(4,0)=(f3(x1,y1+sy,x2,y2,z1,z2)-x(4))/sy;
- F(4,1)=(f3(x1,y1,x2,y2,z1+sz,z2)-x(4))/sz;
- F(4,2)=(f3(x1,y1,x2,y2+sy,z1,z2)-x(4))/sy;
- F(4,3)=(f3(x1,y1,x2,y2,z1,z2+sz)-x(4))/sz;
- F(4,4)=0;
- F(3,3)=0;
-
- TMatrix t(F,TMatrix::kMult,X);
- C.Mult(t,TMatrix(TMatrix::kTransposed,F));
-
- AliTPCtrack *track=new AliTPCtrack(r1[is], x, C, x1, ns*alpha+shift);
- Int_t rc=FindProlongation(*track,sec,ns,i2);
- if (rc<0 || *track<(i1-i2)/2) delete track;
- else seeds.AddLast(track);
- }
- }
- }
-}
-
-//_____________________________________________________________________________
-AliTPCParam *AliTPCSector::param;
-void AliTPC::Clusters2Tracks()
-{
+void AliTPC::Clusters2Tracks()
+ {
//-----------------------------------------------------------------
// This is a track finder.
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
//-----------------------------------------------------------------
- if (!fClusters) return;
-
- AliTPCParam *p=fTPCParam;
- AliTPCSector::SetParam(p);
-
- const Int_t nis=p->GetNInnerSector()/2;
- AliTPCSSector *ssec=new AliTPCSSector[nis];
- Int_t nrow_low=ssec->GetNRows();
-
- const Int_t nos=p->GetNOuterSector()/2;
- AliTPCLSector *lsec=new AliTPCLSector[nos];
- Int_t nrow_up=lsec->GetNRows();
-
- Int_t ncl=fClusters->GetEntriesFast();
- while (ncl--) {
- AliTPCcluster *c=(AliTPCcluster*)fClusters->UncheckedAt(ncl);
- Int_t sec=c->fSector, row=c->fPadRow;
-
- if (sec<nis*2) {
- ssec[sec%nis][row].InsertCluster(c);
- } else {
- sec -= nis*2;
- lsec[sec%nos][row].InsertCluster(c);
- }
- }
-
- TObjArray seeds(20000);
-
- Int_t nrows=nrow_low+nrow_up;
- Int_t gap=Int_t(0.125*nrows), shift=Int_t(0.5*gap);
- MakeSeeds(seeds, lsec, nos, nrow_up-1, nrow_up-1-gap);
- MakeSeeds(seeds, lsec, nos, nrow_up-1-shift, nrow_up-1-shift-gap);
-
- seeds.Sort();
-
- Int_t found=0;
- Int_t nseed=seeds.GetEntriesFast();
-
- for (Int_t s=0; s<nseed; s++) {
- AliTPCtrack *pt=(AliTPCtrack*)seeds.UncheckedAt(s), &t=*pt;
- Double_t alpha=t.GetAlpha();
- if (alpha > 2.*TMath::Pi()) alpha -= 2.*TMath::Pi();
- if (alpha < 0. ) alpha += 2.*TMath::Pi();
- Int_t ns=Int_t(alpha/lsec->GetAlpha())%nos;
-
- if (!FindProlongation(t,lsec,ns)) continue;
-
- alpha=t.GetAlpha() + 0.5*ssec->GetAlpha() - ssec->GetAlphaShift();
- if (alpha > 2.*TMath::Pi()) alpha -= 2.*TMath::Pi();
- if (alpha < 0. ) alpha += 2.*TMath::Pi();
- ns=Int_t(alpha/ssec->GetAlpha())%nis; //index of the inner sector needed
-
- alpha=ns*ssec->GetAlpha() - t.GetAlpha();
- if (!t.Rotate(alpha)) continue;
-
- if (!FindProlongation(t,ssec,ns)) continue;
-
- if (t >= Int_t(0.4*nrows)) {
- AddTrack(t);
- t.UseClusters();
- cerr<<found++<<'\r';
- }
- delete pt;
- }
-
- delete[] ssec;
- delete[] lsec;
-
-}
+ Error("Clusters2Tracks",
+ "Dummy function ! Call AliTPCtracker::Clusters2Tracks(...) instead !");
+ }
//_____________________________________________________________________________
void AliTPC::CreateMaterials()
{
//-----------------------------------------------
- // Create Materials for for TPC
+ // 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();
+ 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 *******************
- //--------------------------------------------------------------
+ //***************** Gases *************************
+
+ //-------------------------------------------------
// pure gases
- //--------------------------------------------------------------
+ //-------------------------------------------------
- // Ne
+ // Neon
- Float_t a_ne = 20.18;
- Float_t z_ne = 10.;
-
+ amat[0]= 20.18;
+ zmat[0]= 10.;
density = 0.0009;
+
+ apure[0]=amat[0];
- AliMaterial(20,"Ne",a_ne,z_ne,density,999.,999.);
+ AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
- // Ar
+ // Argon
- Float_t a_ar = 39.948;
- Float_t z_ar = 18.;
+ amat[0]= 39.948;
+ zmat[0]= 18.;
+ density = 0.001782;
- density = 0.001782;
-
- AliMaterial(21,"Ar",a_ar,z_ar,density,999.,999.);
+ apure[1]=amat[0];
- Float_t a_pure[2];
-
- a_pure[0] = a_ne;
- a_pure[1] = a_ar;
-
+ AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
+
//--------------------------------------------------------------
// gases - compounds
Float_t amol[3];
- // CO2
+ // CO2
amat[0]=12.011;
amat[1]=15.9994;
amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
-
+
// CF4
amat[0]=12.011;
AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
+
// CH4
amat[0]=12.011;
//----------------------------------------------------------------
// gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
//----------------------------------------------------------------
-
- char namate[21];
-
+
+ char namate[21]="";
density = 0.;
Float_t am=0;
Int_t nc;
-
- Float_t a,z,rho,absl,X0,buf[1];
+ Float_t rho,absl,X0,buf[1];
Int_t nbuf;
+ Float_t a,z;
for(nc = 0;nc<fNoComp;nc++)
{
Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
- am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? a_pure[nnc] : amol[nnc]);
+ am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
density += fMixtProp[nc]*rho; // density of the mixture
}
Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
- wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ? a_pure[nnc] : amol[nnc])/am;
+ 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);
- AliMixture(33,"Drift gas 3",amat,zmat,density,fNoComp,wmat);
- AliMedium(2, "Drift gas 1", 31, 0, ISXFLD, SXMGMX, 10., 999.,.1, .001, .001);
- AliMedium(3, "Drift gas 2", 32, 0, ISXFLD, SXMGMX, 10., 999.,.1, .001, .001);
- AliMedium(4, "Drift gas 3", 33, 1, ISXFLD, SXMGMX, 10., 999.,.1, .001, .001);
- // Air
+ // Air
+
+ amat[0] = 14.61;
+ zmat[0] = 7.3;
+ density = 0.001205;
- AliMaterial(24, "Air", 14.61, 7.3, .001205, 30420., 67500.);
+ AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
- AliMedium(24, "Air", 24, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
//----------------------------------------------------------------------
// solid materials
//----------------------------------------------------------------------
- // Al
- AliMaterial(30, "Al", 26.98, 13., 2.7, 8.9, 37.2);
+ // Kevlar C14H22O2N2
- AliMedium(0, "Al",30, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
+ amat[0] = 12.011;
+ amat[1] = 1.;
+ amat[2] = 15.999;
+ amat[3] = 14.006;
- // Si
+ 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;
- AliMaterial(31, "Si", 28.086, 14.,2.33, 9.36, 999.);
+ zmat[0] = 6.;
+ zmat[1] = 1.;
+ zmat[2] = 8.;
- AliMedium(7, "Al",31, 0, ISXFLD, SXMGMX, 10., .1, .1, .1, .1);
+ 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;
density = 1.39;
- AliMixture(32, "Mylar",amat,zmat,density,-3,wmat);
-
- AliMedium(5, "Mylar",32, 0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
-
-
-
-
- // Carbon (normal)
-
- AliMaterial(33,"C normal",12.011,6.,2.265,18.8,999.);
-
- AliMedium(6,"C normal",33,0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
+ AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
- // G10 for inner and outr field cage
- // G10 is 60% SiO2 + 40% epoxy, right now I use A and Z for SiO2
-
- Float_t rhoFactor;
+ // SiO2 - used later for the glass fiber
amat[0]=28.086;
amat[1]=15.9994;
wmat[0]=1.;
wmat[1]=2.;
- density = 1.7;
-
- AliMixture(34,"G10 aux.",amat,zmat,density,-2,wmat);
+ AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
+ // Al
- gMC->Gfmate((*fIdmate)[34],namate,a,z,rho,X0,absl,buf,nbuf);
+ amat[0] = 26.98;
+ zmat[0] = 13.;
- Float_t thickX0 = 0.0052; // field cage in X0 units
-
- Float_t thick = 2.; // in cm
+ density = 2.7;
- X0=19.4; // G10
+ AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
- rhoFactor = X0*thickX0/thick;
- density = rho*rhoFactor;
+ // Si
- AliMaterial(35,"G10-fc",a,z,density,999.,999.);
+ amat[0] = 28.086;
+ zmat[0] = 14.;
- AliMedium(8,"G10-fc",35,0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
+ density = 2.33;
- thickX0 = 0.0027; // inner vessel (eta <0.9)
- thick=0.5;
- rhoFactor = X0*thickX0/thick;
- density = rho*rhoFactor;
+ AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
- AliMaterial(36,"G10-iv",a,z,density,999.,999.);
+ // Cu
- AliMedium(9,"G10-iv",36,0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
+ amat[0] = 63.546;
+ zmat[0] = 29.;
- // Carbon fibre
-
- gMC->Gfmate((*fIdmate)[33],namate,a,z,rho,X0,absl,buf,nbuf);
+ density = 8.96;
- thickX0 = 0.0133; // outer vessel
- thick=3.0;
- rhoFactor = X0*thickX0/thick;
- density = rho*rhoFactor;
+ AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
+ // Tedlar C2H3F
- AliMaterial(37,"C-ov",a,z,density,999.,999.);
+ amat[0] = 12.011;
+ amat[1] = 1.;
+ amat[2] = 18.998;
- AliMedium(10,"C-ov",37,0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
+ zmat[0] = 6.;
+ zmat[1] = 1.;
+ zmat[2] = 9.;
- thickX0=0.015; // inner vessel (cone, eta > 0.9)
- thick=1.5;
- rhoFactor = X0*thickX0/thick;
- density = rho*rhoFactor;
+ wmat[0] = 2.;
+ wmat[1] = 3.;
+ wmat[2] = 1.;
- AliMaterial(38,"C-ivc",a,z,density,999.,999.);
+ density = 1.71;
- AliMedium(11,"C-ivc",38,0, ISXFLD, SXMGMX, 10., .1, .1, .001, .01);
+ AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
- //
- AliMedium(12,"CO2",10,0, ISXFLD, SXMGMX, 10., 999.,.1, .001, .001);
-
-}
+ // Plexiglas C5H8O2
-//_____________________________________________________________________________
-struct Bin {
- UShort_t q;
- UInt_t mask;
- Bin();
-};
-Bin::Bin() {q=0; mask=0xFFFFFFFE;}
+ amat[0]=12.011;
+ amat[1]=1.;
+ amat[2]=15.9994;
-struct Peak {
- Int_t k;
- UInt_t mask;
-};
-inline Bool_t IsMaximum(Int_t k, Int_t max, const Bin *bins) {
- UShort_t q=bins[k].q;
- if (q==1023) return kFALSE;
- if (bins[k-max].q > q) return kFALSE;
- if (bins[k-1 ].q > q) return kFALSE;
- if (bins[k+max].q > q) return kFALSE;
- if (bins[k+1 ].q > q) return kFALSE;
- if (bins[k-max-1].q > q) return kFALSE;
- if (bins[k+max-1].q > q) return kFALSE;
- if (bins[k+max+1].q > q) return kFALSE;
- if (bins[k-max+1].q > q) return kFALSE;
- return kTRUE;
-}
-static void FindPeaks(Int_t k, Int_t max, Bin *bins, Peak *peaks, Int_t& n) {
-//if (n>=31) return;
- if (n<31)
- if (IsMaximum(k,max,bins)) {
- peaks[n].k=k; peaks[n].mask=(2<<n);
- n++;
- }
- bins[k].mask=0;
- if (bins[k-max].mask&1) FindPeaks(k-max,max,bins,peaks,n);
- if (bins[k-1 ].mask&1) FindPeaks(k-1 ,max,bins,peaks,n);
- if (bins[k+max].mask&1) FindPeaks(k+max,max,bins,peaks,n);
- if (bins[k+1 ].mask&1) FindPeaks(k+1 ,max,bins,peaks,n);
-}
+ zmat[0]=6.;
+ zmat[1]=1.;
+ zmat[2]=8.;
-static void MarkPeak(Int_t k, Int_t max, Bin *bins, UInt_t m) {
- UShort_t q=bins[k].q;
+ wmat[0]=5.;
+ wmat[1]=8.;
+ wmat[2]=2.;
- bins[k].mask |= m;
+ density=1.18;
- if (bins[k-max].q <= q)
- if ((bins[k-max].mask&m) == 0) MarkPeak(k-max,max,bins,m);
- if (bins[k-1 ].q <= q)
- if ((bins[k-1 ].mask&m) == 0) MarkPeak(k-1 ,max,bins,m);
- if (bins[k+max].q <= q)
- if ((bins[k+max].mask&m) == 0) MarkPeak(k+max,max,bins,m);
- if (bins[k+1 ].q <= q)
- if ((bins[k+1 ].mask&m) == 0) MarkPeak(k+1 ,max,bins,m);
-}
+ AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
-static void MakeCluster(Int_t k,Int_t max,Bin *bins,UInt_t m,AliTPCcluster &c){
- Float_t q=(Float_t)bins[k].q;
- Int_t i=k/max, j=k-i*max;
- c.fY += i*q;
- c.fZ += j*q;
- c.fSigmaY2 += i*i*q;
- c.fSigmaZ2 += j*j*q;
- c.fQ += q;
+ // Epoxy - C14 H20 O3
- bins[k].mask = 0xFFFFFFFE;
- if (bins[k-max].mask == m) MakeCluster(k-max,max,bins,m,c);
- if (bins[k-1 ].mask == m) MakeCluster(k-1 ,max,bins,m,c);
- if (bins[k+max].mask == m) MakeCluster(k+max,max,bins,m,c);
- if (bins[k+1 ].mask == m) MakeCluster(k+1 ,max,bins,m,c);
-}
+ amat[0]=12.011;
+ amat[1]=1.;
+ amat[2]=15.9994;
-//_____________________________________________________________________________
-void AliTPC::Digits2Clusters()
+ zmat[0]=6.;
+ zmat[1]=1.;
+ zmat[2]=8.;
+
+ wmat[0]=14.;
+ wmat[1]=20.;
+ wmat[2]=3.;
+
+ density=1.25;
+
+ AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
+
+ // Carbon
+
+ amat[0]=12.011;
+ zmat[0]=6.;
+ density= 2.265;
+
+ AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
+
+ // get epoxy
+
+ gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,X0,absl,buf,nbuf);
+
+ // Carbon fiber
+
+ wmat[0]=0.644; // by weight!
+ wmat[1]=0.356;
+
+ density=0.5*(1.25+2.265);
+
+ AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
+
+ // get SiO2
+
+ gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
+
+ wmat[0]=0.725; // by weight!
+ wmat[1]=0.275;
+
+ density=1.7;
+
+ AliMixture(39,"G10",amat,zmat,density,2,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);
+ AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
+ AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
+
+}
+
+void AliTPC::GenerNoise(Int_t tablesize)
{
- //-----------------------------------------------------------------
- // This is a simple cluster finder.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- AliTPCParam *par = fTPCParam;
- const Int_t MAXZ=par->GetMaxTBin()+2;
+ //Generate table with noise
+ //
+ if (fTPCParam==0) {
+ // error message
+ fNoiseDepth=0;
+ return;
+ }
+ if (fNoiseTable) delete[] fNoiseTable;
+ fNoiseTable = new Float_t[tablesize];
+ fNoiseDepth = tablesize;
+ fCurrentNoise =0; //!index of the noise in the noise table
+
+ Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
+ for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
+}
- TTree *t = (TTree *)gDirectory->Get("TreeD_75x40_100x60");
- AliSimDigits digarr, *dummy=&digarr;
- t->GetBranch("Segment")->SetAddress(&dummy);
- Stat_t sectors_by_rows = t->GetEntries();
- for (Int_t n=0; n<sectors_by_rows; n++) {
- t->GetEvent(n);
- Int_t sec, row;
- if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
- cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
- continue;
- }
+Float_t AliTPC::GetNoise()
+{
+ // get noise from table
+ // if ((fCurrentNoise%10)==0)
+ // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
+ if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
+ return fNoiseTable[fCurrentNoise++];
+ //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
+}
- Float_t rx=par->GetPadRowRadii(sec,row);
- Int_t npads, sign;
- {
- Int_t nis=par->GetNInnerSector(), nos=par->GetNOuterSector();
- if (sec < nis) {
- npads = par->GetNPadsLow(row);
- sign = (sec < nis/2) ? 1 : -1;
- } else {
- npads = par->GetNPadsUp(row);
- sign = ((sec-nis) < nos/2) ? 1 : -1;
- }
- }
+Bool_t AliTPC::IsSectorActive(Int_t sec)
+{
+ //
+ // check if the sector is active
+ if (!fActiveSectors) return kTRUE;
+ else return fActiveSectors[sec];
+}
- const Int_t MAXBIN=MAXZ*(npads+2);
- Bin *bins=new Bin[MAXBIN];
-
- digarr.First();
- do {
- Short_t dig=digarr.CurrentDigit();
- if (dig<=par->GetZeroSup()) continue;
- Int_t j=digarr.CurrentRow()+1, i=digarr.CurrentColumn()+1;
- bins[i*MAXZ+j].q=dig;
- bins[i*MAXZ+j].mask=1;
- } while (digarr.Next());
-
- Int_t ncl=0;
- for (Int_t i=0; i<MAXBIN; i++) {
- if ((bins[i].mask&1) == 0) continue;
- Peak peaks[32]; Int_t npeaks=0;
- FindPeaks(i, MAXZ, bins, peaks, npeaks);
-
- if (npeaks>30) continue;
-
- Int_t k,l;
- for (k=0; k<npeaks-1; k++){//mark adjacent peaks
- if (peaks[k].k < 0) continue; //this peak is already removed
- for (l=k+1; l<npeaks; l++) {
- if (peaks[l].k < 0) continue; //this peak is already removed
- Int_t ki=peaks[k].k/MAXZ, kj=peaks[k].k - ki*MAXZ;
- Int_t li=peaks[l].k/MAXZ, lj=peaks[l].k - li*MAXZ;
- Int_t di=TMath::Abs(ki - li);
- Int_t dj=TMath::Abs(kj - lj);
- if (di>1 || dj>1) continue;
- if (bins[peaks[k].k].q > bins[peaks[l].k].q) {
- peaks[l].mask=peaks[k].mask;
- peaks[l].k*=-1;
- } else {
- peaks[k].mask=peaks[l].mask;
- peaks[k].k*=-1;
- break;
- }
- }
- }
+void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
+{
+ // activate interesting sectors
+ SetTreeAddress();//just for security
+ if (fActiveSectors) delete [] fActiveSectors;
+ fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
+ for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
+ for (Int_t i=0;i<n;i++)
+ if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
+
+}
- for (k=0; k<npeaks; k++) {
- MarkPeak(TMath::Abs(peaks[k].k), MAXZ, bins, peaks[k].mask);
- }
-
- for (k=0; k<npeaks; k++) {
- if (peaks[k].k < 0) continue; //removed peak
- AliTPCcluster c;
- MakeCluster(peaks[k].k, MAXZ, bins, peaks[k].mask, c);
- if (c.fQ < 5) continue; //noise cluster
- c.fY /= c.fQ;
- c.fZ /= c.fQ;
-
- Double_t s2 = c.fSigmaY2/c.fQ - c.fY*c.fY;
- c.fSigmaY2 = s2 + 1./12.;
- c.fSigmaY2 *= par->GetPadPitchWidth(sec)*par->GetPadPitchWidth(sec);
- if (s2 != 0.) {
- c.fSigmaY2 *= 0.064*1.3*1.3;
- if (sec<par->GetNInnerSector()) c.fSigmaY2 *= 1.44*1.44;
- }
-
- s2 = c.fSigmaZ2/c.fQ - c.fZ*c.fZ;
- c.fSigmaZ2 = s2 + 1./12.;
- c.fSigmaZ2 *= par->GetZWidth()*par->GetZWidth();
- if (s2 != 0.) {
- c.fSigmaZ2 *= 0.10*1.3*1.3;
- if (sec<par->GetNInnerSector()) c.fSigmaZ2 *= 1.33*1.33;
- }
-
- c.fY = (c.fY - 0.5 - 0.5*npads)*par->GetPadPitchWidth(sec);
- c.fZ = par->GetZWidth()*(c.fZ-1);
- c.fZ -= 3.*par->GetZSigma(); // PASA delay
- c.fZ = sign*(z_end - c.fZ);
-
- if (rx<230./250.*TMath::Abs(c.fZ)) continue;
-
- c.fSector=sec;
- c.fPadRow=row;
- Int_t ki=peaks[k].k/MAXZ, kj=peaks[k].k - ki*MAXZ;
- c.fTracks[0]=digarr.GetTrackID(kj-1,ki-1,0);
- c.fTracks[1]=digarr.GetTrackID(kj-1,ki-1,1);
- c.fTracks[2]=digarr.GetTrackID(kj-1,ki-1,2);
-
- c.fQ=bins[peaks[k].k].q;
-
- if (ki==1 || ki==npads || kj==1 || kj==MAXZ-2) {
- c.fSigmaY2 *= 25.;
- c.fSigmaZ2 *= 4.;
- }
-
- AddCluster(c); ncl++;
- }
+void AliTPC::SetActiveSectors(Int_t flag)
+{
+ //
+ // activate sectors which were hitted by tracks
+ //loop over tracks
+ SetTreeAddress();//just for security
+ if (fHitType==0) return; // if Clones hit - not short volume ID information
+ if (fActiveSectors) delete [] fActiveSectors;
+ fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
+ if (flag) {
+ for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
+ return;
+ }
+ for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
+ TBranch * branch=0;
+ if (TreeH() == 0x0)
+ {
+ Fatal("SetActiveSectors","Can not find TreeH in folder");
+ return;
+ }
+ if (fHitType>1) branch = TreeH()->GetBranch("TPC2");
+ else branch = TreeH()->GetBranch("TPC");
+ Stat_t ntracks = TreeH()->GetEntries();
+ // loop over all hits
+ cout<<"\nAliTPC::SetActiveSectors(): Got "<<ntracks<<" tracks\n";
+
+ for(Int_t track=0;track<ntracks;track++)
+ {
+ ResetHits();
+ //
+ if (fTrackHits && fHitType&4) {
+ TBranch * br1 = TreeH()->GetBranch("fVolumes");
+ TBranch * br2 = TreeH()->GetBranch("fNVolumes");
+ br1->GetEvent(track);
+ br2->GetEvent(track);
+ Int_t *volumes = fTrackHits->GetVolumes();
+ for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
+ fActiveSectors[volumes[j]]=kTRUE;
}
-
- cerr<<"sector, row, compressed digits, clusters: "
- <<sec<<' '<<row<<' '<<digarr.GetSize()<<' '<<ncl<<" \r";
-
- delete[] bins;
+
+ //
+ if (fTrackHitsOld && fHitType&2) {
+ TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
+ br->GetEvent(track);
+ AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
+ for (UInt_t j=0;j<ar->GetSize();j++){
+ fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
+ }
+ }
}
+
+}
+
+
+
+
+void AliTPC::Digits2Clusters(Int_t /*eventnumber*/)
+{
+ //-----------------------------------------------------------------
+ // This is a simple cluster finder.
+ //-----------------------------------------------------------------
+ Error("Digits2Clusters",
+ "Dummy function ! Call AliTPCclusterer::Digits2Clusters(...) instead !");
}
+extern Double_t SigmaY2(Double_t, Double_t, Double_t);
+extern Double_t SigmaZ2(Double_t, Double_t);
//_____________________________________________________________________________
-void AliTPC::Hits2Clusters()
+void AliTPC::Hits2Clusters(Int_t /*eventn*/)
{
//--------------------------------------------------------
// TPC simple cluster generator from hits
//-----------------------------------------------------------------
// 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;
- if(fTPCParam == 0){
- printf("AliTPCParam MUST be created firstly\n");
+
+ if (!fLoader) {
+ cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
return;
- }
+ }
+
+ //if(fDefaults == 0) SetDefaults();
- Float_t sigma_rphi,sigma_z,cl_rphi,cl_z;
+ 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,nhits;
+ Int_t sector;
Int_t ipart;
Float_t xyz[5];
Float_t pl,pt,tanth,rpad,ratio;
// Get the access to the tracks
//---------------------------------------------------------------
- TTree *TH = gAlice->TreeH();
- Stat_t ntracks = TH->GetEntries();
+ TTree *tH = TreeH();
+ if (tH == 0x0)
+ {
+ Fatal("Hits2Clusters","Can not find TreeH in folder");
+ return;
+ }
+ SetTreeAddress();
+
+ Stat_t ntracks = tH->GetEntries();
+
+ //Switch to the output file
+
+ if (fLoader->TreeR() == 0x0) fLoader->MakeTree("R");
+
+ cout<<"fTPCParam->GetTitle() = "<<fTPCParam->GetTitle()<<endl;
+
+ AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
+ rl->CdGAFile();
+ //fTPCParam->Write(fTPCParam->GetTitle());
+
+ AliTPCClustersArray carray;
+ carray.Setup(fTPCParam);
+ carray.SetClusterType("AliTPCcluster");
+ carray.MakeTree(fLoader->TreeR());
+
+ Int_t nclusters=0; //cluster counter
//------------------------------------------------------------
// Loop over all sectors (72 sectors for 20 deg
for(Int_t track=0;track<ntracks;track++){
ResetHits();
- TH->GetEvent(track);
- //
- // Get number of the TPC hits and a pointer
- // to the particles
- //
- nhits=fHits->GetEntriesFast();
- Particles=gAlice->Particles();
+ tH->GetEvent(track);
//
+ // Get number of the TPC hits
+ //
+ tpcHit = (AliTPChit*)FirstHit(-1);
+
// Loop over hits
//
- for(Int_t hit=0;hit<nhits;hit++){
- tpcHit=(AliTPChit*)fHits->UncheckedAt(hit);
- if (tpcHit->fQ == 0.) continue; //information about track (I.Belikov)
+ 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
- ipart=tpcHit->fTrack;
- particle=(TParticle*)Particles->UncheckedAt(ipart);
+
+ if(sector != isec){
+ tpcHit = (AliTPChit*) NextHit();
+ continue;
+ }
+ ipart=tpcHit->Track();
+ particle=gAlice->Particle(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->fX*tpcHit->fX + tpcHit->fY*tpcHit->fY);
+ 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
- sigma_rphi=SigmaY2(rpad,tanth,pt);
- sigma_z =SigmaZ2(rpad,tanth );
+ sigmaRphi=SigmaY2(rpad,tanth,pt);
+ sigmaZ =SigmaZ2(rpad,tanth );
// cluster widths
- cl_rphi=ac_rphi-bc_rphi*rpad*tanth+cc_rphi*ratio*ratio;
- cl_z=ac_z-bc_z*rpad*tanth+cc_z*tanth*tanth;
+ clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
+ clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
// temporary protection
- if(sigma_rphi < 0.) sigma_rphi=0.4e-3;
- if(sigma_z < 0.) sigma_z=0.4e-3;
- if(cl_rphi < 0.) cl_rphi=2.5e-3;
- if(cl_z < 0.) cl_z=2.5e-5;
+ 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->fX*cph + tpcHit->fY*sph;
- Float_t yprim=-tpcHit->fX*sph + tpcHit->fY*cph;
- xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigma_rphi)); // y
- xyz[1]=gRandom->Gaus(tpcHit->fZ,TMath::Sqrt(sigma_z)); // z
- xyz[2]=tpcHit->fQ; // q
- xyz[3]=sigma_rphi; // fSigmaY2
- xyz[4]=sigma_z; // fSigmaZ2
-
- Int_t tracks[5]={tpcHit->fTrack, -1, -1, sector, tpcHit->fPadRow};
- AddCluster(xyz,tracks);
-
+ 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
-
+
+ } // end of loop over tracks
+
+ Int_t nrows=fTPCParam->GetNRow(isec);
+ for (Int_t irow=0; irow<nrows; irow++) {
+ AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
+ if (!clrow) continue;
+ carray.StoreRow(isec,irow);
+ carray.ClearRow(isec,irow);
+ }
+
} // end of loop over sectors
+
+ cerr<<"Number of made clusters : "<<nclusters<<" \n";
+ fLoader->WriteRecPoints("OVERWRITE");
+
} // end of function
//
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 sector,nhits;
Int_t ipart;
- const Int_t cmaxhits=30000;
- TVector * xxxx = new TVector(cmaxhits*4);
- TVector & xxx = *xxxx;
- Int_t maxhits = cmaxhits;
+ const Int_t kcmaxhits=30000;
+ AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
+ AliTPCFastVector & xxx = *xxxx;
+ Int_t maxhits = kcmaxhits;
//construct array for each padrow
for (Int_t i=0; i<fTPCParam->GetNRow(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();
-
+ TTree *tH = TreeH();
+ if (tH == 0x0)
+ {
+ Fatal("Hits2Clusters","Can not find TreeH in folder");
+ return;
+ }
+ SetTreeAddress();
+
+ Stat_t ntracks = tH->GetEntries();
+ Int_t npart = gAlice->GetNtrack();
+ //MI change
+ TBranch * branch=0;
+ if (fHitType>1) branch = tH->GetBranch("TPC2");
+ else branch = tH->GetBranch("TPC");
+
//------------------------------------------------------------
// Loop over tracks
//------------------------------------------------------------
-
- for(Int_t track=0;track<ntracks;track++){
+
+ for(Int_t track=0;track<ntracks;track++){
+ Bool_t isInSector=kTRUE;
ResetHits();
- TH->GetEvent(track);
+ isInSector = TrackInVolume(isec,track);
+ if (!isInSector) continue;
+ //MI change
+ branch->GetEntry(track); // get next 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;hit<nhits;hit++){
- tpcHit=(AliTPChit*)fHits->UncheckedAt(hit);
- if (tpcHit==0) continue;
- sector=tpcHit->fSector; // sector number
- if(sector != isec) continue;
- ipart=tpcHit->fTrack;
- if (ipart<npart) particle=(TParticle*)Particles->UncheckedAt(ipart);
+
+ //M.I. changes
+
+ tpcHit = (AliTPChit*)FirstHit(-1);
+ while(tpcHit){
+
+ Int_t sector=tpcHit->fSector; // sector number
+ if(sector != isec){
+ tpcHit = (AliTPChit*) NextHit();
+ continue;
+ }
+
+ ipart=tpcHit->Track();
+ if (ipart<npart) particle=gAlice->Particle(ipart);
//find row number
- Float_t x[3]={tpcHit->fX,tpcHit->fY,tpcHit->fZ};
+ 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 (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
if (lastrow<0) lastrow=currentrow;
if (currentrow==lastrow){
if ( currentIndex>=maxhits){
- maxhits+=cmaxhits;
+ maxhits+=kcmaxhits;
xxx.ResizeTo(4*maxhits);
}
xxx(currentIndex*4)=x[0];
sumx2z+=xxx(index*4+2)*x2;
sumq+=xxx(index*4+3);
}
- Float_t CentralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
+ Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx3-sumx2*sumx2);
Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
sumx2*(sumx*sumx2z-sumx2*sumxz);
- Float_t y=detay/det+CentralPad;
+ if (TMath::Abs(det)<0.00001){
+ tpcHit = (AliTPChit*)NextHit();
+ continue;
+ }
+
+ 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);
- AliCluster 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);
+ if (row!=0) {
+ AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
+ // AliComplexCluster cl;
+ cl->fX=z;
+ cl->fY=y;
+ cl->fQ=sumq;
+ cl->fSigmaX2=bz;
+ cl->fSigmaY2=by;
+ cl->fTracks[0]=ipart;
+ }
currentIndex=0;
lastrow=currentrow;
} //end of calculating cluster for given row
-
+ tpcHit = (AliTPChit*)NextHit();
} // end of loop over hits
} // end of loop over tracks
//write padrows to tree
}
+
+
+//__
+void AliTPC::SDigits2Digits2(Int_t /*eventnumber*/)
+{
+ //create digits from summable digits
+ GenerNoise(500000); //create teble with noise
+
+ //conect tree with sSDigits
+ TTree *t = fLoader->TreeS();
+
+ if (t == 0x0)
+ {
+ fLoader->LoadSDigits("READ");
+ t = fLoader->TreeS();
+ if (t == 0x0)
+ {
+ Error("SDigits2Digits2","Can not get input TreeS");
+ return;
+ }
+ }
+
+ if (fLoader->TreeD() == 0x0) fLoader->MakeTree("D");
+
+ AliSimDigits digarr, *dummy=&digarr;
+ TBranch* sdb = t->GetBranch("Segment");
+ if (sdb == 0x0)
+ {
+ Error("SDigits2Digits2","Can not find branch with segments in TreeS.");
+ return;
+ }
+
+ sdb->SetAddress(&dummy);
+
+ Stat_t nentries = t->GetEntries();
+
+ // set zero suppression
+
+ fTPCParam->SetZeroSup(2);
+
+ // get zero suppression
+
+ Int_t zerosup = fTPCParam->GetZeroSup();
+
+ //make tree with digits
+
+ AliTPCDigitsArray *arr = new AliTPCDigitsArray;
+ arr->SetClass("AliSimDigits");
+ arr->Setup(fTPCParam);
+ arr->MakeTree(fLoader->TreeD());
+
+ AliTPCParam * par = fTPCParam;
+
+ //Loop over segments of the TPC
+
+ for (Int_t n=0; n<nentries; n++) {
+ t->GetEvent(n);
+ Int_t sec, row;
+ if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
+ cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
+ continue;
+ }
+ if (!IsSectorActive(sec))
+ {
+// cout<<n<<" NOT Active \n";
+ continue;
+ }
+ else
+ {
+// cout<<n<<" Active \n";
+ }
+ AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
+ Int_t nrows = digrow->GetNRows();
+ Int_t ncols = digrow->GetNCols();
+
+ digrow->ExpandBuffer();
+ digarr.ExpandBuffer();
+ digrow->ExpandTrackBuffer();
+ digarr.ExpandTrackBuffer();
+
+
+ Short_t * pamp0 = digarr.GetDigits();
+ Int_t * ptracks0 = digarr.GetTracks();
+ Short_t * pamp1 = digrow->GetDigits();
+ Int_t * ptracks1 = digrow->GetTracks();
+ Int_t nelems =nrows*ncols;
+ Int_t saturation = fTPCParam->GetADCSat();
+ //use internal structure of the AliDigits - for speed reason
+ //if you cahnge implementation
+ //of the Alidigits - it must be rewriten -
+ for (Int_t i= 0; i<nelems; i++){
+ // Float_t q = *pamp0;
+ //q/=16.; //conversion faktor
+ //Float_t noise= GetNoise();
+ //q+=noise;
+ //q= TMath::Nint(q);
+ Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
+ if (q>zerosup){
+ if (q>saturation) q=saturation;
+ *pamp1=(Short_t)q;
+ //if (ptracks0[0]==0)
+ // ptracks1[0]=1;
+ //else
+ ptracks1[0]=ptracks0[0];
+ ptracks1[nelems]=ptracks0[nelems];
+ ptracks1[2*nelems]=ptracks0[2*nelems];
+ }
+ pamp0++;
+ pamp1++;
+ ptracks0++;
+ ptracks1++;
+ }
+
+ arr->StoreRow(sec,row);
+ arr->ClearRow(sec,row);
+ // cerr<<sec<<"\t"<<row<<"\n";
+ }
+
+
+ //write results
+ fLoader->WriteDigits("OVERWRITE");
+
+ delete arr;
+}
+//__________________________________________________________________
+void AliTPC::SetDefaults(){
+
+
+ cerr<<"Setting default parameters...\n";
+
+ // Set response functions
+
+ //
+ AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
+ rl->CdGAFile();
+ AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
+ if(param){
+ printf("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...\n");
+ delete param;
+ param = new AliTPCParamSR();
+ }
+ else {
+ param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
+ }
+ if(!param){
+ printf("No TPC parameters found\n");
+ exit(4);
+ }
+
+
+ AliTPCPRF2D * prfinner = new AliTPCPRF2D;
+ AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
+ AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
+ AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
+ rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
+ rf->SetOffset(3*param->GetZSigma());
+ rf->Update();
+
+ TDirectory *savedir=gDirectory;
+ TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
+ if (!f->IsOpen()) {
+ cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
+ exit(3);
+ }
+ prfinner->Read("prf_07504_Gati_056068_d02");
+ prfouter1->Read("prf_10006_Gati_047051_d03");
+ prfouter2->Read("prf_15006_Gati_047051_d03");
+ f->Close();
+ savedir->cd();
+
+ param->SetInnerPRF(prfinner);
+ param->SetOuter1PRF(prfouter1);
+ param->SetOuter2PRF(prfouter2);
+ param->SetTimeRF(rf);
+
+ // set fTPCParam
+
+ SetParam(param);
+
+
+ fDefaults = 1;
+
+}
//__________________________________________________________________
-void AliTPC::Hits2Digits()
+void AliTPC::Hits2Digits(Int_t eventnumber)
{
//----------------------------------------------------
- // Loop over all sectors
+ // Loop over all sectors for a single event
//----------------------------------------------------
+ AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
+ rl->GetEvent(eventnumber);
+ if (fLoader->TreeH() == 0x0)
+ {
+ if(fLoader->LoadHits())
+ {
+ Error("Hits2Digits","Can not load hits.");
+ }
+ }
+ SetTreeAddress();
+
+ if (fLoader->TreeD() == 0x0 )
+ {
+ fLoader->MakeTree("D");
+ if (fLoader->TreeD() == 0x0 )
+ {
+ Error("Hits2Digits","Can not get TreeD");
+ return;
+ }
+ }
- if(fTPCParam == 0){
- printf("AliTPCParam MUST be created firstly\n");
- return;
- }
+ if(fDefaults == 0) SetDefaults(); // check if the parameters are set
+ GenerNoise(500000); //create teble with noise
+
+ //setup TPCDigitsArray
+
+ if(GetDigitsArray()) delete GetDigitsArray();
+
+ AliTPCDigitsArray *arr = new AliTPCDigitsArray;
+ arr->SetClass("AliSimDigits");
+ arr->Setup(fTPCParam);
+
+ arr->MakeTree(fLoader->TreeD());
+ SetDigitsArray(arr);
+
+ fDigitsSwitch=0; // standard digits
+
+ cerr<<"Digitizing TPC -- normal digits...\n";
+
+ for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
+ if (IsSectorActive(isec))
+ {
+ if (fDebug) Info("Hits2Digits","Sector %d is active.",isec);
+ Hits2DigitsSector(isec);
+ }
+ else
+ {
+ if (fDebug) Info("Hits2Digits","Sector %d is NOT active.",isec);
+ }
+
+ fLoader->WriteDigits("OVERWRITE");
+
+//this line prevents the crash in the similar one
+//on the beginning of this method
+//destructor attempts to reset the tree, which is deleted by the loader
+//need to be redesign
+ if(GetDigitsArray()) delete GetDigitsArray();
+ SetDigitsArray(0x0);
+
+}
+
+//__________________________________________________________________
+void AliTPC::Hits2SDigits2(Int_t eventnumber)
+{
+
+ //-----------------------------------------------------------
+ // summable digits - 16 bit "ADC", no noise, no saturation
+ //-----------------------------------------------------------
+
+ //----------------------------------------------------
+ // Loop over all sectors for a single event
+ //----------------------------------------------------
+// AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
+
+ AliRunLoader* rl = fLoader->GetRunLoader();
+
+ rl->GetEvent(eventnumber);
+ if (fLoader->TreeH() == 0x0)
+ {
+ if(fLoader->LoadHits())
+ {
+ Error("Hits2Digits","Can not load hits.");
+ return;
+ }
+ }
+ SetTreeAddress();
+
+
+ if (fLoader->TreeS() == 0x0 )
+ {
+ fLoader->MakeTree("S");
+ }
+
+ if(fDefaults == 0) SetDefaults();
+
+ GenerNoise(500000); //create table with noise
+ //setup TPCDigitsArray
- for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) Hits2DigitsSector(isec);
+ if(GetDigitsArray()) delete GetDigitsArray();
+
+ AliTPCDigitsArray *arr = new AliTPCDigitsArray;
+ arr->SetClass("AliSimDigits");
+ arr->Setup(fTPCParam);
+ arr->MakeTree(fLoader->TreeS());
+
+ SetDigitsArray(arr);
+
+ cerr<<"Digitizing TPC -- summable digits...\n";
+
+ fDigitsSwitch=1; // summable digits
+
+ // set zero suppression to "0"
+
+ fTPCParam->SetZeroSup(0);
+
+ for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
+ if (IsSectorActive(isec))
+ {
+// cout<<"Sector "<<isec<<" is active\n";
+ Hits2DigitsSector(isec);
+ }
+
+ fLoader->WriteSDigits("OVERWRITE");
+
+//this line prevents the crash in the similar one
+//on the beginning of this method
+//destructor attempts to reset the tree, which is deleted by the loader
+//need to be redesign
+ if(GetDigitsArray()) delete GetDigitsArray();
+ SetDigitsArray(0x0);
}
+//__________________________________________________________________
+
+void AliTPC::Hits2SDigits()
+{
+
+ //-----------------------------------------------------------
+ // summable digits - 16 bit "ADC", no noise, no saturation
+ //-----------------------------------------------------------
+
+ //----------------------------------------------------
+ // Loop over all sectors for a single event
+ //----------------------------------------------------
+ //MI change - for pp run
+// Int_t eventnumber = gAlice->GetEvNumber();
+// AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
+// rl->GetEvent(eventnumber);
+// 12/05/2003 This method is obsolete and not used. It should be redesingned
+// M.Kowalski
+
+ if (fLoader->TreeH() == 0x0)
+ {
+ if(fLoader->LoadHits())
+ {
+ Error("Hits2Digits","Can not load hits.");
+ }
+ }
+ SetTreeAddress();
+
+ if(fDefaults == 0) SetDefaults();
+ GenerNoise(500000); //create table with noise
+
+ //setup TPCDigitsArray
+
+ if(GetDigitsArray()) delete GetDigitsArray();
+
+ if (fLoader->TreeS() == 0x0 )
+ {
+ fLoader->MakeTree("S");
+ }
+
+ AliTPCDigitsArray *arr = new AliTPCDigitsArray;
+ arr->SetClass("AliSimDigits");
+ arr->Setup(fTPCParam);
+ arr->MakeTree(fLoader->TreeS());
+ SetDigitsArray(arr);
+ cerr<<"Digitizing TPC -- summable digits...\n";
+ // fDigitsSwitch=1; // summable digits -for the moment direct
+
+ for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
+
+ // write results
+ //
+ cout<<"Why method TPC::Hits2SDigits writes digits and not sdigits? skowron\n";
+ fLoader->WriteDigits("OVERWRITE");
+}
//_____________________________________________________________________________
+
void AliTPC::Hits2DigitsSector(Int_t isec)
{
//-------------------------------------------------------------------
// Get the access to the track hits
//-------------------------------------------------------
+ // check if the parameters are set - important if one calls this method
+ // directly, not from the Hits2Digits
+
+ if(fDefaults == 0) SetDefaults();
+
+ TTree *tH = TreeH(); // pointer to the hits tree
+ if (tH == 0x0)
+ {
+ Fatal("Hits2DigitsSector","Can not find TreeH in folder");
+ return;
+ }
- TTree *TH = gAlice->TreeH(); // pointer to the hits tree
- Stat_t ntracks = TH->GetEntries();
+ Stat_t ntracks = tH->GetEntries();
if( ntracks > 0){
TObjArray **row;
- printf("*** Processing sector number %d ***\n",isec);
+ //printf("*** Processing sector number %d ***\n",isec);
Int_t nrows =fTPCParam->GetNRow(isec);
- row= new TObjArray* [nrows];
+ row= new TObjArray* [nrows+2]; // 2 extra rows for cross talk
- MakeSector(isec,nrows,TH,ntracks,row);
+ MakeSector(isec,nrows,tH,ntracks,row);
//--------------------------------------------------------
// Digitize this sector, row by row
- // row[i] is the pointer to the TObjArray of TVectors,
+ // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
// each one containing electrons accepted on this
// row, assigned into tracks
//--------------------------------------------------------
Int_t i;
- if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree();
+ if (fDigitsArray->GetTree()==0)
+ {
+ Fatal("Hits2DigitsSector","Tree not set in fDigitsArray");
+ }
for (i=0;i<nrows;i++){
fDigitsArray->StoreRow(isec,i);
- Int_t ndig = dig->GetSize();
-
- printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
+ Int_t ndig = dig->GetDigitSize();
+ if (gDebug > 10)
+ printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
+
fDigitsArray->ClearRow(isec,i);
} // end of the sector digitization
- for(i=0;i<nrows;i++){
- row[i]->Delete();
+ for(i=0;i<nrows+2;i++){
+ row[i]->Delete();
+ delete row[i];
}
delete [] row; // delete the array of pointers to TObjArray-s
Float_t zerosup = fTPCParam->GetZeroSup();
- Int_t nrows =fTPCParam->GetNRow(isec);
+ // Int_t nrows =fTPCParam->GetNRow(isec);
fCurrentIndex[1]= isec;
- Int_t n_of_pads = fTPCParam->GetNPads(isec,irow);
- Int_t n_of_tbins = fTPCParam->GetMaxTBin();
- Int_t IndexRange[4];
+ 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,n_of_pads,0,n_of_tbins); // integrated
- TMatrix *m2 = new TMatrix(0,n_of_pads,0,n_of_tbins); // single
+
+ AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
+ AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
//
- TMatrix &Total = *m1;
+ AliTPCFastMatrix &total = *m1;
// Array of pointers to the label-signal list
- Int_t NofDigits = n_of_pads*n_of_tbins; // number of digits for this row
- Float_t **pList = new Float_t* [NofDigits];
+ 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;lp<NofDigits;lp++)pList[lp]=0; // set all pointers to NULL
+ for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
//
//calculate signal
//
- Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
- Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
+ //Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
+ //Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
+ Int_t row1=irow;
+ Int_t row2=irow+2;
for (Int_t row= row1;row<=row2;row++){
Int_t nTracks= rows[row]->GetEntries();
for (i1=0;i1<nTracks;i1++){
fCurrentIndex[2]= row;
- fCurrentIndex[3]=irow;
- if (row==irow){
+ fCurrentIndex[3]=irow+1;
+ if (row==irow+1){
m2->Zero(); // clear single track signal matrix
- Float_t TrackLabel = GetSignal(rows[row],i1,m2,m1,IndexRange);
- GetList(TrackLabel,n_of_pads,m2,IndexRange,pList);
+ Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
+ GetList(trackLabel,nofPads,m2,indexRange,pList);
}
- else GetSignal(rows[row],i1,0,m1,IndexRange);
+ else GetSignal(rows[row],i1,0,m1,indexRange);
}
}
Int_t tracks[3];
AliDigits *dig = fDigitsArray->GetRow(isec,irow);
- for(Int_t ip=0;ip<n_of_pads;ip++){
- for(Int_t it=0;it<n_of_tbins;it++){
+ Int_t gi=-1;
+ Float_t fzerosup = zerosup+0.5;
+ for(Int_t it=0;it<nofTbins;it++){
+ Float_t *pq = &(total.UncheckedAt(0,it));
+ for(Int_t ip=0;ip<nofPads;ip++){
+ gi++;
+ Float_t q=*pq;
+ pq++;
+ if(fDigitsSwitch == 0){
+ q+=GetNoise();
+ if(q <=fzerosup) continue; // do not fill zeros
+ q = TMath::Nint(q);
+ if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
- Float_t q = Total(ip,it);
-
- Int_t gi =it*n_of_pads+ip; // global index
-
- q = gRandom->Gaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
-
- q = (Int_t)q;
+ }
- if(q <=zerosup) continue; // do not fill zeros
- if(q > adc_sat) q = adc_sat; // saturation
+ else {
+ if(q <= 0.) continue; // do not fill zeros
+ if(q>2000.) q=2000.;
+ q *= 16.;
+ q = TMath::Nint(q);
+ }
//
// "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;
+ tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
}
//Begin_Html
// This row has been digitized, delete nonused stuff
//
- for(lp=0;lp<NofDigits;lp++){
+ for(lp=0;lp<nofDigits;lp++){
if(pList[lp]) delete [] pList[lp];
}
//_____________________________________________________________________________
-Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr, TMatrix *m1, TMatrix *m2,
- Int_t *IndexRange)
+Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
+ AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
{
//---------------------------------------------------------------
// Modified: Marian Ivanov
//-----------------------------------------------------------------
- TVector *tv;
-
- tv = (TVector*)p1->At(ntr); // pointer to a track
- TVector &v = *tv;
+ AliTPCFastVector *tv;
+
+ tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
+ AliTPCFastVector &v = *tv;
Float_t label = v(0);
- Int_t CentralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3])-1)/2;
+ Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]-1)-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
+ indexRange[0]=9999; // min pad
+ indexRange[1]=-1; // max pad
+ indexRange[2]=9999; //min time
+ indexRange[3]=-1; // max time
- TMatrix &signal = *m1;
- TMatrix &total = *m2;
+ AliTPCFastMatrix &signal = *m1;
+ AliTPCFastMatrix &total = *m2;
//
// Loop over all electrons
//
Float_t aval = v(idx+4);
Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
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; i<n; i++){
- Int_t *index = fTPCParam->GetResBin(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 n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
+
+ Int_t *index = fTPCParam->GetResBin(0);
+ Float_t *weight = & (fTPCParam->GetResWeight(0));
+
+ if (n>0) for (Int_t i =0; i<n; i++){
+ Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
+
+ if (pad>=0){
Int_t time=index[2];
- Float_t weight = fTPCParam->GetResWeight(i); //we normalise response to ADC channel
- weight *= eltoadcfac;
+ Float_t qweight = *(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);
+ if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
+ total.UncheckedAt(pad,time)+=qweight;
+ if (indexRange[0]>pad) indexRange[0]=pad;
+ if (indexRange[1]<pad) indexRange[1]=pad;
+ if (indexRange[2]>time) indexRange[2]=time;
+ if (indexRange[3]<time) indexRange[3]=time;
+
+ index+=3;
+ weight++;
+
}
}
} // end of loop over electrons
}
//_____________________________________________________________________________
-void AliTPC::GetList(Float_t label,Int_t np,TMatrix *m,Int_t *IndexRange,
- Float_t **pList)
+void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *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;
+ AliTPCFastMatrix &signal = *m;
// lop over nonzero digits
- for(Int_t it=IndexRange[2];it<IndexRange[3]+1;it++){
- for(Int_t ip=IndexRange[0];ip<IndexRange[1]+1;ip++){
+ for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
+ for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
// accept only the contribution larger than 500 electrons (1/2 s_noise)
if(signal(ip,it)<0.5) continue;
- Int_t GlobalIndex = it*np+ip; // GlobalIndex starts from 0!
+ Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
- if(!pList[GlobalIndex]){
+ if(!pList[globalIndex]){
//
// Create new list (6 elements - 3 signals and 3 labels),
//
- pList[GlobalIndex] = new Float_t [6];
+ pList[globalIndex] = new Float_t [6];
// set list to -1
- *pList[GlobalIndex] = -1.;
- *(pList[GlobalIndex]+1) = -1.;
- *(pList[GlobalIndex]+2) = -1.;
- *(pList[GlobalIndex]+3) = -1.;
- *(pList[GlobalIndex]+4) = -1.;
- *(pList[GlobalIndex]+5) = -1.;
+ *pList[globalIndex] = -1.;
+ *(pList[globalIndex]+1) = -1.;
+ *(pList[globalIndex]+2) = -1.;
+ *(pList[globalIndex]+3) = -1.;
+ *(pList[globalIndex]+4) = -1.;
+ *(pList[globalIndex]+5) = -1.;
- *pList[GlobalIndex] = label;
- *(pList[GlobalIndex]+3) = signal(ip,it);
+ *pList[globalIndex] = label;
+ *(pList[globalIndex]+3) = signal(ip,it);
}
else{
// check the signal magnitude
- Float_t highest = *(pList[GlobalIndex]+3);
- Float_t middle = *(pList[GlobalIndex]+4);
- Float_t lowest = *(pList[GlobalIndex]+5);
+ Float_t highest = *(pList[globalIndex]+3);
+ Float_t middle = *(pList[globalIndex]+4);
+ Float_t lowest = *(pList[globalIndex]+5);
//
// compare the new signal with already existing list
//
if (signal(ip,it)>highest){
- *(pList[GlobalIndex]+5) = middle;
- *(pList[GlobalIndex]+4) = highest;
- *(pList[GlobalIndex]+3) = signal(ip,it);
+ *(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;
+ *(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]+5) = middle;
+ *(pList[globalIndex]+4) = signal(ip,it);
- *(pList[GlobalIndex]+2) = *(pList[GlobalIndex]+1);
- *(pList[GlobalIndex]+1) = label;
+ *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
+ *(pList[globalIndex]+1) = label;
}
else{
- *(pList[GlobalIndex]+5) = signal(ip,it);
- *(pList[GlobalIndex]+2) = label;
+ *(pList[globalIndex]+5) = signal(ip,it);
+ *(pList[globalIndex]+2) = label;
}
}
Float_t xyz[4];
AliTPChit *tpcHit; // pointer to a sigle TPC hit
+ //MI change
+ TBranch * branch=0;
+ if (fHitType>1) 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.
+ // each TObjArray will store the AliTPCFastVectors
+ // of electrons, one AliTPCFastVectors per each track.
//----------------------------------------------
- for(i=0; i<nrows; i++){
+ Int_t *nofElectrons = new Int_t [nrows+2]; // electron counter for each row
+ AliTPCFastVector **tracks = new AliTPCFastVector* [nrows+2]; //pointers to the track vectors
+
+ for(i=0; i<nrows+2; i++){
row[i] = new TObjArray;
+ nofElectrons[i]=0;
+ tracks[i]=0;
}
- Int_t *n_of_electrons = new Int_t [nrows]; // electron counter for each row
- TVector **tracks = new TVector* [nrows]; //pointers to the track vectors
+
+
//--------------------------------------------------------------------
// Loop over tracks, the "track" contains the full history
previousTrack = -1; // nothing to store so far!
for(Int_t track=0;track<ntracks;track++){
-
+ Bool_t isInSector=kTRUE;
ResetHits();
+ isInSector = TrackInVolume(isec,track);
+ if (!isInSector) continue;
+ //MI change
+ branch->GetEntry(track); // get next track
- TH->GetEvent(track); // get next track
- Int_t nhits = fHits->GetEntriesFast(); // get number of hits for this track
+ //M.I. changes
- if(nhits == 0) continue; // no hits in the TPC for this track
+ tpcHit = (AliTPChit*)FirstHit(-1);
//--------------------------------------------------------------
// Loop over hits
//--------------------------------------------------------------
- for(Int_t hit=0;hit<nhits;hit++){
- tpcHit = (AliTPChit*)fHits->UncheckedAt(hit); // get a pointer to a hit
+ 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
+
- currentTrack = tpcHit->fTrack; // track number
if(currentTrack != previousTrack){
// store already filled fTrack
- for(i=0;i<nrows;i++){
+ for(i=0;i<nrows+2;i++){
if(previousTrack != -1){
- if(n_of_electrons[i]>0){
- TVector &v = *tracks[i];
+ if(nofElectrons[i]>0){
+ AliTPCFastVector &v = *tracks[i];
v(0) = previousTrack;
- tracks[i]->ResizeTo(4*n_of_electrons[i]+1); // shrink if necessary
+ tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
row[i]->Add(tracks[i]);
}
else{
- delete tracks[i]; // delete empty TVector
+ delete tracks[i]; // delete empty AliTPCFastVector
tracks[i]=0;
}
}
- n_of_electrons[i]=0;
- tracks[i] = new TVector(481); // TVectors for the next fTrack
+ nofElectrons[i]=0;
+ tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors 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)
+ 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->fZ))
+ Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
/fTPCParam->GetDriftV();
// in microseconds!
- Float_t AttProb = fTPCParam->GetAttCoef()*
+ Float_t attProb = fTPCParam->GetAttCoef()*
fTPCParam->GetOxyCont()*time; // fraction!
//-----------------------------------------------
//-----------------------------------------------
Int_t index[3];
index[1]=isec;
- for(Int_t nel=0;nel<QI;nel++){
+ for(Int_t nel=0;nel<qI;nel++){
// skip if electron lost due to the attachment
- if((gRandom->Rndm(0)) < AttProb) continue; // electron lost!
- xyz[0]=tpcHit->fX;
- xyz[1]=tpcHit->fY;
- xyz[2]=tpcHit->fZ;
- xyz[3]= (Float_t) (-gasgain*TMath::Log(gRandom->Rndm()));
+ if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
+ xyz[0]=tpcHit->X();
+ xyz[1]=tpcHit->Y();
+ xyz[2]=tpcHit->Z();
+ //
+ // protection for the nonphysical avalanche size (10**6 maximum)
+ //
+ Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
+ xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
index[0]=1;
- TransportElectron(xyz,index); //MI change -august
- Int_t row_number;
- fTPCParam->GetPadRow(xyz,index); //MI change august
- row_number = index[2];
+ TransportElectron(xyz,index);
+ Int_t rowNumber;
+ fTPCParam->GetPadRow(xyz,index);
+ // row 0 - cross talk from the innermost row
+ // row fNRow+1 cross talk from the outermost row
+ rowNumber = index[2]+1;
//transform position to local digit coordinates
//relative to nearest pad row
- if ((row_number<0)||row_number>=fTPCParam->GetNRow(isec)) continue;
- n_of_electrons[row_number]++;
+ if ((rowNumber<0)||rowNumber>fTPCParam->GetNRow(isec)+1) continue;
+ Float_t x1,y1;
+ if (isec <fTPCParam->GetNInnerSector()) {
+ x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
+ y1 = fTPCParam->GetYInner(rowNumber);
+ }
+ else{
+ x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
+ y1 = fTPCParam->GetYOuter(rowNumber);
+ }
+ // gain inefficiency at the wires edges - linear
+ x1=TMath::Abs(x1);
+ y1-=1.;
+ if(x1>y1) xyz[3]*=TMath::Max(1.e-6,(y1-x1+1.));
+
+ nofElectrons[rowNumber]++;
//----------------------------------
// Expand vector if necessary
//----------------------------------
- if(n_of_electrons[row_number]>120){
- Int_t range = tracks[row_number]->GetNrows();
- if((n_of_electrons[row_number])>(range-1)/4){
+ if(nofElectrons[rowNumber]>120){
+ Int_t range = tracks[rowNumber]->GetNrows();
+ if((nofElectrons[rowNumber])>(range-1)/4){
- tracks[row_number]->ResizeTo(range+400); // Add 100 electrons
+ tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
}
}
- TVector &v = *tracks[row_number];
- Int_t idx = 4*n_of_electrons[row_number]-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
+ AliTPCFastVector &v = *tracks[rowNumber];
+ Int_t idx = 4*nofElectrons[rowNumber]-3;
+ Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
+ memcpy(position,xyz,4*sizeof(Float_t));
+
} // 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;i<nrows;i++){
- if(n_of_electrons[i]>0){
- TVector &v = *tracks[i];
+ for(i=0;i<nrows+2;i++){
+ if(nofElectrons[i]>0){
+ AliTPCFastVector &v = *tracks[i];
v(0) = previousTrack;
- tracks[i]->ResizeTo(4*n_of_electrons[i]+1); // shrink if necessary
+ tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
row[i]->Add(tracks[i]);
}
else{
}
delete [] tracks;
- delete [] n_of_electrons;
+ delete [] nofElectrons;
} // end of MakeSector
//
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");
+ if(fDebug) {
+ printf("\n%s: ",ClassName());
+ for(i=0;i<35;i++) printf("*");
+ printf(" TPC_INIT ");
+ for(i=0;i<35;i++) printf("*");
+ printf("\n%s: ",ClassName());
+ //
+ for(i=0;i<80;i++) printf("*");
+ printf("\n");
+ }
}
//_____________________________________________________________________________
//
// Create Tree branches for the TPC.
//
+ if(GetDebug()) Info("MakeBranch","");
Int_t buffersize = 4000;
char branchname[10];
sprintf(branchname,"%s",GetName());
+
+ const char *h = strstr(option,"H");
+ if ( h && (fHitType<=1) && (fHits == 0x0)) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
+
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);
- }
-
- char *R = strstr(option,"R");
+ const char *d = strstr(option,"D");
+
+ if (fDigits && fLoader->TreeD() && d)
+ {
+ MakeBranchInTree(gAlice->TreeD(), branchname, &fDigits, buffersize, 0);
+ }
- if (fClusters && gAlice->TreeR() && R) {
- gAlice->TreeR()->Branch(branchname,&fClusters, buffersize);
- printf("Making Branch %s for Clusters\n",branchname);
- }
+ if (fHitType>1) MakeBranch2(option,0); // MI change 14.09.2000
}
//_____________________________________________________________________________
{
//
// Reset number of digits and the digits array for this detector
- // reset clusters
//
fNdigits = 0;
if (fDigits) fDigits->Clear();
- fNclusters = 0;
- if (fClusters) fClusters->Clear();
}
//_____________________________________________________________________________
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
-
fSecAL = sec;
}
//-----------------------------------------------------------------
// Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
//-----------------------------------------------------------------
-
fSecAU = sec;
}
fSens = sens;
}
+
-void AliTPC::SetSide(Float_t side)
+void AliTPC::SetSide(Float_t side=0.)
{
+ // choice of the TPC side
+
fSide = side;
}
Float_t p2,Float_t p3)
{
+ // gax mixture definition
+
fNoComp = nc;
fMixtComp[0]=c1;
Float_t driftl=xyz[2];
if(driftl<0.01) driftl=0.01;
driftl=TMath::Sqrt(driftl);
- Float_t sig_t = driftl*(fTPCParam->GetDiffT());
- Float_t sig_l = driftl*(fTPCParam->GetDiffL());
- xyz[0]=gRandom->Gaus(xyz[0],sig_t);
- xyz[1]=gRandom->Gaus(xyz[1],sig_t);
- xyz[2]=gRandom->Gaus(xyz[2],sig_l);
+ 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;
+ Float_t dx = fTPCParam->Transform2to2NearestWire(xyz,index);
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);
- if (R__v < 2) return;
- R__b >> fNsectors;
- R__b >> fNclusters;
- R__b >> fNtracks;
-
- } else {
- R__b.WriteVersion(AliTPC::IsA());
- AliDetector::Streamer(R__b);
- R__b << fNsectors;
- R__b << fNclusters;
- R__b << fNtracks;
- }
+ //add nonisochronity (not implemented yet)
}
-ClassImp(AliTPCcluster)
-
-//_____________________________________________________________________________
-AliTPCcluster::AliTPCcluster(Float_t *hits, Int_t *lab)
-{
- //
- // Creates a simulated cluster for the TPC
- //
- fTracks[0] = lab[0];
- fTracks[1] = lab[1];
- fTracks[2] = lab[2];
- fSector = lab[3];
- fPadRow = lab[4];
- fY = hits[0];
- fZ = hits[1];
- fQ = hits[2];
- fSigmaY2 = hits[3];
- fSigmaZ2 = hits[4];
-}
-
-//_____________________________________________________________________________
-void AliTPCcluster::GetXYZ(Float_t *x, const AliTPCParam *par) const
-{
- //
- // Transformation from local to global coordinate system
- //
- x[0]=par->GetPadRowRadii(fSector,fPadRow);
- x[1]=fY;
- x[2]=fZ;
- Float_t cs, sn, tmp;
- par->AdjustCosSin(fSector,cs,sn);
- tmp = x[0]*cs-x[1]*sn;
- x[1]= x[0]*sn+x[1]*cs; x[0]=tmp;
-}
-
-//_____________________________________________________________________________
-Int_t AliTPCcluster::Compare(TObject * o)
-{
- //
- // compare two clusters according y coordinata
- //
- AliTPCcluster *cl= (AliTPCcluster *)o;
- if (fY<cl->fY) return -1;
- if (fY==cl->fY) return 0;
- return 1;
-}
-
-Bool_t AliTPCcluster::IsSortable() const
-{
- //
- //make AliTPCcluster sortabale
- //
- return kTRUE;
-}
-
-
-
ClassImp(AliTPCdigit)
//_____________________________________________________________________________
fQ = hits[3];
}
-
-ClassImp(AliTPCtrack)
-
-//_____________________________________________________________________________
-AliTPCtrack::AliTPCtrack(Float_t *hits)
+//________________________________________________________________________
+// Additional code because of the AliTPCTrackHitsV2
+
+void AliTPC::MakeBranch2(Option_t *option,const char */*file*/)
{
//
- // Default creator for a TPC reconstructed track object
- //
- fX=hits[0]; // This is dummy code !
+ // Create a new branch in the current Root Tree
+ // The branch of fHits is automatically split
+ // MI change 14.09.2000
+ if(GetDebug()) Info("MakeBranch2","");
+ if (fHitType<2) return;
+ char branchname[10];
+ sprintf(branchname,"%s2",GetName());
+ //
+ // Get the pointer to the header
+ const char *cH = strstr(option,"H");
+ //
+ if (fTrackHits && TreeH() && cH && fHitType&4)
+ {
+ if(GetDebug()) Info("MakeBranch2","Making branch for Type 4 Hits");
+ TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,fBufferSize,99);
+ }
+
+ if (fTrackHitsOld && TreeH() && cH && fHitType&2)
+ {
+ if(GetDebug()) Info("MakeBranch2","Making branch for Type 2 Hits");
+ AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
+ TreeH(),fBufferSize,99);
+ TreeH()->GetListOfBranches()->Add(branch);
+ }
}
-//_________________________________________________________________________
-AliTPCtrack::AliTPCtrack(const AliTPCcluster *c,const TVector& xx,
- const TMatrix& CC, Double_t xref, Double_t alpha):
- x(xx),C(CC),fClusters(200)
+void AliTPC::SetTreeAddress()
+{
+//Sets tree address for hits
+ if (fHitType<=1)
+ {
+ if (fHits == 0x0 ) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
+ AliDetector::SetTreeAddress();
+ }
+ if (fHitType>1) SetTreeAddress2();
+}
+
+void AliTPC::SetTreeAddress2()
{
- //-----------------------------------------------------------------
- // This is the main track constructor.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- fX=xref;
- fAlpha=alpha;
- fChi2=0.;
- fClusters.AddLast((AliTPCcluster*)(c));
+ // Set branch address for the TrackHits Tree
+ //
+ if(GetDebug()) Info("SetTreeAddress2","");
+
+ TBranch *branch;
+ char branchname[20];
+ sprintf(branchname,"%s2",GetName());
+ //
+ // Branch address for hit tree
+ TTree *treeH = TreeH();
+ if ((treeH)&&(fHitType&4)) {
+ branch = treeH->GetBranch(branchname);
+ if (branch)
+ {
+ branch->SetAddress(&fTrackHits);
+ if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Setting");
+ }
+ else
+ if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Failed (can not find branch)");
+
+ }
+ if ((treeH)&&(fHitType&2)) {
+ branch = treeH->GetBranch(branchname);
+ if (branch)
+ {
+ branch->SetAddress(&fTrackHitsOld);
+ if (GetDebug()) Info("SetTreeAddress2","fHitType&2 Setting");
+ }
+ else if (GetDebug())
+ Info("SetTreeAddress2","fHitType&2 Failed (can not find branch)");
+ }
+ //set address to TREETR
+
+ TTree *treeTR = TreeTR();
+ if (treeTR && fTrackReferences) {
+ branch = treeTR->GetBranch(GetName());
+ if (branch) branch->SetAddress(&fTrackReferences);
+ }
+
}
-//_____________________________________________________________________________
-AliTPCtrack::AliTPCtrack(const AliTPCtrack& t) : x(t.x), C(t.C),
- fClusters(t.fClusters.GetEntriesFast())
+void AliTPC::FinishPrimary()
{
- //-----------------------------------------------------------------
- // This is a track copy constructor.
+ if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
+ if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
+}
+
+
+void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
+{
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- fX=t.fX;
- fChi2=t.fChi2;
- fAlpha=t.fAlpha;
- Int_t n=t.fClusters.GetEntriesFast();
- for (Int_t i=0; i<n; i++) fClusters.AddLast(t.fClusters.UncheckedAt(i));
+ // add hit to the list
+ Int_t rtrack;
+ if (fIshunt) {
+ int primary = gAlice->GetPrimary(track);
+ gAlice->Particle(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 && fHitType&4)
+ fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
+ hits[1],hits[2],(Int_t)hits[3]);
+ if (fTrackHitsOld &&fHitType&2 )
+ fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
+ hits[1],hits[2],(Int_t)hits[3]);
+
}
-//_____________________________________________________________________________
-Int_t AliTPCtrack::Compare(TObject *o) {
- //-----------------------------------------------------------------
- // This function compares tracks according to the uncertainty of their
- // position in Y.
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- AliTPCtrack *t=(AliTPCtrack*)o;
- Double_t co=t->GetSigmaY2();
- Double_t c =GetSigmaY2();
- if (c>co) return 1;
- else if (c<co) return -1;
- return 0;
+void AliTPC::ResetHits()
+{
+ if (fHitType&1) AliDetector::ResetHits();
+ if (fHitType>1) ResetHits2();
}
-//_____________________________________________________________________________
-Int_t AliTPCtrack::PropagateTo(Double_t xk,Double_t x0,Double_t rho,Double_t pm)
+void AliTPC::ResetHits2()
{
- //-----------------------------------------------------------------
- // This function propagates a track to a reference plane x=xk.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- if (TMath::Abs(x(2)*xk - x(3)) >= 0.999) {
- if (*this>4) cerr<<*this<<" AliTPCtrack warning: Propagation failed !\n";
- return 0;
- }
+ //reset hits
+ if (fTrackHits && fHitType&4) fTrackHits->Clear();
+ if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
- Double_t x1=fX, x2=x1+(xk-x1), dx=x2-x1, y1=x(0), z1=x(1);
- Double_t c1=x(2)*x1 - x(3), r1=sqrt(1.- c1*c1);
- Double_t c2=x(2)*x2 - x(3), r2=sqrt(1.- c2*c2);
-
- x(0) += dx*(c1+c2)/(r1+r2);
- x(1) += dx*(c1+c2)/(c1*r2 + c2*r1)*x(4);
-
- TMatrix F(5,5); F.UnitMatrix();
- Double_t rr=r1+r2, cc=c1+c2, xx=x1+x2;
- F(0,2)= dx*(rr*xx + cc*(c1*x1/r1+c2*x2/r2))/(rr*rr);
- F(0,3)=-dx*(2*rr + cc*(c1/r1 + c2/r2))/(rr*rr);
- Double_t cr=c1*r2+c2*r1;
- F(1,2)= dx*x(4)*(cr*xx-cc*(r1*x2-c2*c1*x1/r1+r2*x1-c1*c2*x2/r2))/(cr*cr);
- F(1,3)=-dx*x(4)*(2*cr + cc*(c2*c1/r1-r1 + c1*c2/r2-r2))/(cr*cr);
- F(1,4)= dx*cc/cr;
- TMatrix tmp(F,TMatrix::kMult,C);
- C.Mult(tmp,TMatrix(TMatrix::kTransposed,F));
-
- fX=x2;
-
- //Multiple scattering******************
- Double_t ey=x(2)*fX - x(3);
- Double_t ex=sqrt(1-ey*ey);
- Double_t ez=x(4);
- TMatrix Q(5,5); Q=0.;
- Q(2,2)=ez*ez+ey*ey; Q(2,3)=-ex*ey; Q(2,4)=-ex*ez;
- Q(3,2)=Q(2,3); Q(3,3)= ez*ez+ex*ex; Q(3,4)=-ey*ez;
- Q(4,2)=Q(2,4); Q(4,3)= Q(3,4); Q(4,4)=1.;
-
- F=0;
- F(2,2)=-x(2)*ex; F(2,3)=-x(2)*ey;
- F(3,2)=-ex*(x(2)*fX-ey); F(3,3)=-(1.+ x(2)*fX*ey - ey*ey);
- F(4,2)=-ez*ex; F(4,3)=-ez*ey; F(4,4)=1.;
-
- tmp.Mult(F,Q);
- Q.Mult(tmp,TMatrix(TMatrix::kTransposed,F));
+}
+
+AliHit* AliTPC::FirstHit(Int_t track)
+{
+ if (fHitType>1) return FirstHit2(track);
+ return AliDetector::FirstHit(track);
+}
+AliHit* AliTPC::NextHit()
+{
+ if (fHitType>1) return NextHit2();
- Double_t p2=GetPt()*GetPt()*(1.+x(4)*x(4));
- Double_t beta2=p2/(p2 + pm*pm);
- Double_t d=sqrt((x1-fX)*(x1-fX)+(y1-x(0))*(y1-x(0))+(z1-x(1))*(z1-x(1)));
- Double_t theta2=14.1*14.1/(beta2*p2*1e6)*d/x0*rho;
- Q*=theta2;
- C+=Q;
-
- //Energy losses************************
- Double_t dE=0.153e-3/beta2*(log(5940*beta2/(1-beta2)) - beta2)*d*rho;
- if (x1 < x2) dE=-dE;
- x(2)*=(1.- sqrt(p2+pm*pm)/p2*dE);
- //x(3)*=(1.- sqrt(p2+pm*pm)/p2*dE);
-
- return 1;
+ return AliDetector::NextHit();
}
-//_____________________________________________________________________________
-void AliTPCtrack::PropagateToVertex(Double_t x0,Double_t rho,Double_t pm)
+AliHit* AliTPC::FirstHit2(Int_t track)
{
- //-----------------------------------------------------------------
- // This function propagates tracks to the "vertex".
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Double_t c=x(2)*fX - x(3);
- Double_t tgf=-x(3)/(x(2)*x(0) + sqrt(1-c*c));
- Double_t snf=tgf/sqrt(1.+ tgf*tgf);
- Double_t xv=(x(3)+snf)/x(2);
- PropagateTo(xv,x0,rho,pm);
+ // 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();
+ TreeH()->GetEvent(track);
+ }
+ //
+ if (fTrackHits && fHitType&4) {
+ fTrackHits->First();
+ return fTrackHits->GetHit();
+ }
+ if (fTrackHitsOld && fHitType&2) {
+ fTrackHitsOld->First();
+ return fTrackHitsOld->GetHit();
+ }
+
+ else return 0;
}
-//_____________________________________________________________________________
-void AliTPCtrack::Update(const AliTPCcluster *c, Double_t chisq)
+AliHit* AliTPC::NextHit2()
{
- //-----------------------------------------------------------------
- // This function associates a clusters with this track.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- TMatrix H(2,5); H.UnitMatrix();
- TMatrix Ht(TMatrix::kTransposed,H);
- TVector m(2); m(0)=c->fY; m(1)=c->fZ;
- TMatrix V(2,2); V(0,0)=c->fSigmaY2; V(0,1)=0.; V(1,0)=0.; V(1,1)=c->fSigmaZ2;
+ //Return the next hit for the current track
- TMatrix tmp(H,TMatrix::kMult,C);
- TMatrix R(tmp,TMatrix::kMult,Ht); R+=V;
-
- Double_t det=(Double_t)R(0,0)*R(1,1) - (Double_t)R(0,1)*R(1,0);
- R(0,1)=R(0,0); R(0,0)=R(1,1); R(1,1)=R(0,1);
- R(1,0)*=-1; R(0,1)=R(1,0);
- R*=1./det;
-
- //R.Invert();
-
- TMatrix K(C,TMatrix::kMult,Ht); K*=R;
-
- TVector savex=x;
- x*=H; x-=m;
- x*=-1; x*=K; x+=savex;
- if (TMath::Abs(x(2)*fX-x(3)) >= 0.999) {
- if (*this>4) cerr<<*this<<" AliTPCtrack warning: Filtering failed !\n";
- x=savex;
- return;
+ if (fTrackHitsOld && fHitType&2) {
+ fTrackHitsOld->Next();
+ return fTrackHitsOld->GetHit();
}
-
- TMatrix saveC=C;
- C.Mult(K,tmp); C-=saveC; C*=-1;
-
- fClusters.AddLast((AliTPCcluster*)c);
- fChi2 += chisq;
+ if (fTrackHits) {
+ fTrackHits->Next();
+ return fTrackHits->GetHit();
+ }
+ else
+ return 0;
}
-//_____________________________________________________________________________
-Int_t AliTPCtrack::Rotate(Double_t alpha)
+void AliTPC::LoadPoints(Int_t)
{
- //-----------------------------------------------------------------
- // This function rotates this track.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- fAlpha += alpha;
-
- Double_t x1=fX, y1=x(0);
- Double_t ca=cos(alpha), sa=sin(alpha);
- Double_t r1=x(2)*fX - x(3);
-
- fX = x1*ca + y1*sa;
- x(0)=-x1*sa + y1*ca;
- x(3)=x(3)*ca + (x(2)*y1 + sqrt(1.- r1*r1))*sa;
+ Int_t a = 0;
+ /* if(fHitType==1) return AliDetector::LoadPoints(a);
+ LoadPoints2(a);
+ */
+ if(fHitType==1) AliDetector::LoadPoints(a);
+ else LoadPoints2(a);
+
+ // LoadPoints3(a);
+
+}
+
+
+void AliTPC::RemapTrackHitIDs(Int_t *map)
+{
+ if (!fTrackHits) return;
- Double_t r2=x(2)*fX - x(3);
- if (TMath::Abs(r2) >= 0.999) {
- if (*this>4) cerr<<*this<<" AliTPCtrack warning: Rotation failed !\n";
- return 0;
+ if (fTrackHitsOld && fHitType&2){
+ AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
+ for (UInt_t i=0;i<arr->GetSize();i++){
+ AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
+ info->fTrackID = map[info->fTrackID];
+ }
}
-
- Double_t y0=x(0) + sqrt(1.- r2*r2)/x(2);
- if ((x(0)-y0)*x(2) >= 0.) {
- if (*this>4) cerr<<*this<<" AliTPCtrack warning: Rotation failed !!!\n";
- return 0;
+ if (fTrackHitsOld && fHitType&4){
+ TClonesArray * arr = fTrackHits->GetArray();;
+ for (Int_t i=0;i<arr->GetEntriesFast();i++){
+ AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
+ info->fTrackID = map[info->fTrackID];
+ }
}
-
- TMatrix F(5,5); F.UnitMatrix();
- F(0,0)=ca;
- F(3,0)=x(2)*sa;
- F(3,2)=(y1 - r1*x1/sqrt(1.- r1*r1))*sa;
- F(3,3)= ca + sa*r1/sqrt(1.- r1*r1);
- TMatrix tmp(F,TMatrix::kMult,C);
- // Double_t dy2=C(0,0);
- C.Mult(tmp,TMatrix(TMatrix::kTransposed,F));
- // C(0,0)+=dy2*sa*sa*r1*r1/(1.- r1*r1);
- // C(1,1)+=dy2*sa*sa*x(4)*x(4)/(1.- r1*r1);
-
- return 1;
}
-//_____________________________________________________________________________
-void AliTPCtrack::UseClusters() const
+Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
{
- //-----------------------------------------------------------------
- // This function marks clusters associated with this track.
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Int_t num_of_clusters=fClusters.GetEntriesFast();
- for (Int_t i=0; i<num_of_clusters; i++) {
- //if (i<=14) continue;
- AliTPCcluster *c=(AliTPCcluster*)fClusters.UncheckedAt(i);
- c->Use();
+ //return bool information - is track in given volume
+ //load only part of the track information
+ //return true if current track is in volume
+ //
+ // return kTRUE;
+ if (fTrackHitsOld && fHitType&2) {
+ TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
+ br->GetEvent(track);
+ AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
+ for (UInt_t j=0;j<ar->GetSize();j++){
+ if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
+ }
+ }
+
+ if (fTrackHits && fHitType&4) {
+ TBranch * br1 = TreeH()->GetBranch("fVolumes");
+ TBranch * br2 = TreeH()->GetBranch("fNVolumes");
+ br2->GetEvent(track);
+ br1->GetEvent(track);
+ Int_t *volumes = fTrackHits->GetVolumes();
+ Int_t nvolumes = fTrackHits->GetNVolumes();
+ if (!volumes && nvolumes>0) {
+ printf("Problematic track\t%d\t%d",track,nvolumes);
+ return kFALSE;
+ }
+ for (Int_t j=0;j<nvolumes; j++)
+ if (volumes[j]==id) return kTRUE;
+ }
+
+ if (fHitType&1) {
+ TBranch * br = TreeH()->GetBranch("fSector");
+ br->GetEvent(track);
+ for (Int_t j=0;j<fHits->GetEntriesFast();j++){
+ if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
+ }
}
+ return kFALSE;
+
}
//_____________________________________________________________________________
-Double_t AliTPCtrack::GetPredictedChi2(const AliTPCcluster *c) const
+void AliTPC::LoadPoints2(Int_t)
{
- //-----------------------------------------------------------------
- // This function calculates a predicted chi2 increment.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- TMatrix H(2,5); H.UnitMatrix();
- TVector m(2); m(0)=c->fY; m(1)=c->fZ;
- TMatrix V(2,2); V(0,0)=c->fSigmaY2; V(0,1)=0.; V(1,0)=0.; V(1,1)=c->fSigmaZ2;
- TVector res=x; res*=H; res-=m; //res*=-1;
- TMatrix tmp(H,TMatrix::kMult,C);
- TMatrix R(tmp,TMatrix::kMult,TMatrix(TMatrix::kTransposed,H)); R+=V;
+ // Store x, y, z of all hits in memory
+ //
+ if (fTrackHits == 0 && fTrackHitsOld==0) return;
+ //
+ Int_t nhits =0;
+ if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
+ if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
- Double_t det=(Double_t)R(0,0)*R(1,1) - (Double_t)R(0,1)*R(1,0);
- if (TMath::Abs(det) < 1.e-10) {
- if (*this>4) cerr<<*this<<" AliTPCtrack warning: Singular matrix !\n";
- return 1e10;
+ 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;i<tracks;i++) {
+ ntrk[i]=0;
+ coor[i]=0;
+ limi[i]=0;
}
- R(0,1)=R(0,0); R(0,0)=R(1,1); R(1,1)=R(0,1);
- R(1,0)*=-1; R(0,1)=R(1,0);
- R*=1./det;
-
- //R.Invert();
-
- TVector r=res;
- res*=R;
- return r*res;
+ //
+ AliPoints *points = 0;
+ Float_t *fp=0;
+ Int_t trk;
+ Int_t chunk=nhits/4+1;
+ //
+ // Loop over all the hits and store their position
+ //
+ ahit = FirstHit2(-1);
+ while (ahit){
+ 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; trk<tracks; ++trk) {
+ if(ntrk[trk]) {
+ points = new AliPoints();
+ points->SetMarkerColor(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;
}
+
//_____________________________________________________________________________
-struct S { Int_t lab; Int_t max; };
-Int_t AliTPCtrack::GetLabel(Int_t nrows) const
+void AliTPC::LoadPoints3(Int_t)
{
- //-----------------------------------------------------------------
- // This function returns the track label. If label<0, this track is fake.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Int_t num_of_clusters=fClusters.GetEntriesFast();
- S *s=new S[num_of_clusters];
- Int_t i;
- for (i=0; i<num_of_clusters; i++) s[i].lab=s[i].max=0;
-
- Int_t lab=123456789;
- for (i=0; i<num_of_clusters; i++) {
- AliTPCcluster *c=(AliTPCcluster*)fClusters.UncheckedAt(i);
- lab=TMath::Abs(c->fTracks[0]);
- Int_t j;
- for (j=0; j<num_of_clusters; j++)
- if (s[j].lab==lab || s[j].max==0) break;
- s[j].lab=lab;
- s[j].max++;
+ // 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;i<tracks;i++) {
+ ntrk[i]=0;
+ coor[i]=0;
+ limi[i]=0;
}
-
- Int_t max=0;
- for (i=0; i<num_of_clusters; i++)
- if (s[i].max>max) {max=s[i].max; lab=s[i].lab;}
-
- delete[] s;
-
- for (i=0; i<num_of_clusters; i++) {
- AliTPCcluster *c=(AliTPCcluster*)fClusters.UncheckedAt(i);
- if (TMath::Abs(c->fTracks[1]) == lab ||
- TMath::Abs(c->fTracks[2]) == lab ) max++;
+ //
+ AliPoints *points = 0;
+ Float_t *fp=0;
+ Int_t trk;
+ Int_t chunk=nhits/4+1;
+ //
+ // Loop over all the hits and store their position
+ //
+ ahit = FirstHit2(-1);
+ //for (Int_t hit=0;hit<nhits;hit++) {
+
+ Int_t lastrow = -1;
+ while (ahit){
+ // ahit = (AliHit*)fHits->UncheckedAt(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();
}
- if (1.-Float_t(max)/num_of_clusters > 0.10) return -lab;
-
- Int_t tail=Int_t(0.08*nrows);
- if (num_of_clusters < tail) return lab;
-
- max=0;
- for (i=1; i<=tail; i++) {
- AliTPCcluster *c=(AliTPCcluster*)fClusters.UncheckedAt(num_of_clusters-i);
- if (lab == TMath::Abs(c->fTracks[0]) ||
- lab == TMath::Abs(c->fTracks[1]) ||
- lab == TMath::Abs(c->fTracks[2])) max++;
+ //
+ for(trk=0; trk<tracks; ++trk) {
+ if(ntrk[trk]) {
+ points = new AliPoints();
+ points->SetMarkerColor(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;
+ }
}
- if (max < Int_t(0.5*tail)) return -lab;
-
- return lab;
+ delete [] coor;
+ delete [] ntrk;
+ delete [] limi;
}
-//_____________________________________________________________________________
-void AliTPCtrack::GetPxPyPz(Double_t& px, Double_t& py, Double_t& pz) const
+
+
+void AliTPC::FindTrackHitsIntersection(TClonesArray * /*arr*/)
{
- //-----------------------------------------------------------------
- // This function returns reconstructed track momentum in the global system.
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Double_t pt=TMath::Abs(GetPt()); // GeV/c
- Double_t r=x(2)*fX-x(3);
- Double_t y0=x(0) + sqrt(1.- r*r)/x(2);
- px=-pt*(x(0)-y0)*x(2); //cos(phi);
- py=-pt*(x(3)-fX*x(2)); //sin(phi);
- pz=pt*x(4);
- Double_t tmp=px*TMath::Cos(fAlpha) - py*TMath::Sin(fAlpha);
- py=px*TMath::Sin(fAlpha) + py*TMath::Cos(fAlpha);
- px=tmp;
-}
-//_____________________________________________________________________________
-Double_t AliTPCtrack::GetdEdX(Double_t low, Double_t up) const {
- //-----------------------------------------------------------------
- // This funtion calculates dE/dX within the "low" and "up" cuts.
//
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------
- Int_t ncl=fClusters.GetEntriesFast();
- Int_t n=0;
- Double_t *q=new Double_t[ncl];
- Int_t i;
- for (i=1; i<ncl; i++) { //Shall I think of this "i=1" ? (I.Belikov)
- AliTPCcluster *cl=(AliTPCcluster*)(fClusters.UncheckedAt(i));
- q[n++]=TMath::Abs(cl->fQ)/cl->fdEdX;
- if (cl->fSector<36) q[n-1]*=1.1;
- }
+ //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;
+ AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
+ AliTPCFastVector & xxx = *xxxx;
+ Int_t maxhits = kcmaxhits;
+
+ //
+ AliTPChit * tpcHit=0;
+ tpcHit = (AliTPChit*)FirstHit2(-1);
+ Int_t currentIndex=0;
+ Int_t lastrow=-1; //last writen row
- //stupid sorting
- Int_t swap;
- do {
- swap=0;
- for (i=0; i<n-1; i++) {
- if (q[i]<=q[i+1]) continue;
- Double_t tmp=q[i]; q[i]=q[i+1]; q[i+1]=tmp;
- swap++;
+ 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++;
}
- } while (swap);
+ 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;index<currentIndex;index++){
+ Float_t x,x2,x3,x4;
+ x=x2=x3=x4=xxx(index*4);
+ x2*=x;
+ x3*=x2;
+ x4*=x3;
+ sumx+=x;
+ sumx2+=x2;
+ sumx3+=x3;
+ sumx4+=x4;
+ sumy+=xxx(index*4+1);
+ sumxy+=xxx(index*4+1)*x;
+ sumx2y+=xxx(index*4+1)*x2;
+ sumz+=xxx(index*4+2);
+ sumxz+=xxx(index*4+2)*x;
+ sumx2z+=xxx(index*4+2)*x2;
+ sumq+=xxx(index*4+3);
+ }
+ Float_t centralPad = (fTPCParam->GetNPads(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();
- Int_t nl=Int_t(low*n), nu=Int_t(up *n);
- Double_t dedx=0.;
- for (i=nl; i<=nu; i++) dedx += q[i];
- dedx /= (nu-nl+1);
- return dedx;
}
+//_______________________________________________________________________________
+void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
+{
+ // produces rec points from digits and writes them on the root file
+ // AliTPCclusters.root
-//_________________________________________________________________________
-//
-// Classes for internal tracking use
-//_________________________________________________________________________
-void AliTPCRow::InsertCluster(const AliTPCcluster* c) {
- //-----------------------------------------------------------------------
- // Insert a cluster into this pad row in accordence with its y-coordinate
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------------
- if (num_of_clusters==MAX_CLUSTER_PER_ROW) {
- cerr<<"AliTPCRow::InsertCluster(): Too many clusters !\n"; return;
+ TDirectory *cwd = gDirectory;
+
+
+ AliTPCParamSR *dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60");
+ if(dig){
+ printf("You are running 2 pad-length geom hits with 3 pad-length geom digits\n");
+ delete dig;
+ dig = new AliTPCParamSR();
+ }
+ else
+ {
+ dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
+ }
+ if(!dig){
+ printf("No TPC parameters found\n");
+ exit(3);
+ }
+
+ SetParam(dig);
+ cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
+ TFile *out;
+ if(!gSystem->Getenv("CONFIG_FILE")){
+ out=TFile::Open("AliTPCclusters.root","recreate");
+ }
+ else {
+ const char *tmp1;
+ const char *tmp2;
+ char tmp3[80];
+ tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
+ tmp2=gSystem->Getenv("CONFIG_OUTDIR");
+ sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
+ out=TFile::Open(tmp3,"recreate");
+ }
+
+ TStopwatch timer;
+ cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
+ timer.Start();
+ cwd->cd();
+ for(Int_t iev=firstevent;iev<lastevent+1;iev++){
+
+ printf("Processing event %d\n",iev);
+ Digits2Clusters(iev);
}
- if (num_of_clusters==0) {clusters[num_of_clusters++]=c; return;}
- Int_t i=Find(c->fY);
- memmove(clusters+i+1 ,clusters+i,(num_of_clusters-i)*sizeof(AliTPCcluster*));
- clusters[i]=c; num_of_clusters++;
+ cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
+ timer.Stop();
+ timer.Print();
+ out->Close();
+ cwd->cd();
+
+
}
-//___________________________________________________________________
-Int_t AliTPCRow::Find(Double_t y) const {
- //-----------------------------------------------------------------------
- // Return the index of the nearest cluster
- //
- // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
- //-----------------------------------------------------------------------
- if (y <= clusters[0]->fY) return 0;
- if (y > clusters[num_of_clusters-1]->fY) return num_of_clusters;
- Int_t b=0, e=num_of_clusters-1, m=(b+e)/2;
- for (; b<e; m=(b+e)/2) {
- if (y > clusters[m]->fY) b=m+1;
- else e=m;
+AliLoader* AliTPC::MakeLoader(const char* topfoldername)
+{
+//Makes TPC loader
+ fLoader = new AliTPCLoader(GetName(),topfoldername);
+ return fLoader;
+}
+
+////////////////////////////////////////////////////////////////////////
+AliTPCParam* AliTPC::LoadTPCParam(TFile *file) {
+//
+// load TPC paarmeters from a given file or create new if the object
+// is not found there
+// 12/05/2003 This method should be moved to the AliTPCLoader
+// and one has to decide where to store the TPC parameters
+// M.Kowalski
+ char paramName[50];
+ sprintf(paramName,"75x40_100x60_150x60");
+ AliTPCParam *paramTPC=(AliTPCParam*)file->Get(paramName);
+ if (paramTPC) {
+ cout<<"TPC parameters "<<paramName<<" found."<<endl;
+ } else {
+ cerr<<"TPC parameters not found. Create new (they may be incorrect)."
+ <<endl;
+ paramTPC = new AliTPCParamSR;
}
- return m;
+ return paramTPC;
+
+// the older version of parameters can be accessed with this code.
+// In some cases, we have old parameters saved in the file but
+// digits were created with new parameters, it can be distinguish
+// by the name of TPC TreeD. The code here is just for the case
+// we would need to compare with old data, uncomment it if needed.
+//
+// char paramName[50];
+// sprintf(paramName,"75x40_100x60");
+// AliTPCParam *paramTPC=(AliTPCParam*)in->Get(paramName);
+// if (paramTPC) {
+// cout<<"TPC parameters "<<paramName<<" found."<<endl;
+// } else {
+// sprintf(paramName,"75x40_100x60_150x60");
+// paramTPC=(AliTPCParam*)in->Get(paramName);
+// if (paramTPC) {
+// cout<<"TPC parameters "<<paramName<<" found."<<endl;
+// } else {
+// cerr<<"TPC parameters not found. Create new (they may be incorrect)."
+// <<endl;
+// paramTPC = new AliTPCParamSR;
+// }
+// }
+// return paramTPC;
+
}
-//________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff