#include "TH1D.h"
#include "TH2F.h"
#include "THnSparse.h"
+#include "THn.h"
#include "TVectorD.h"
#include "TTreeStream.h"
#include "TFile.h"
#include "AliTPCseed.h"
#include "AliTracker.h"
#include "TClonesArray.h"
-#include "AliExternalComparison.h"
#include "AliLog.h"
#include "TFile.h"
#include "TProfile.h"
#include "TCanvas.h"
-
+#include "TDatabasePDG.h"
#include "TTreeStream.h"
#include "Riostream.h"
+#include "TRandom.h"
#include <sstream>
using namespace std;
AliTPCcalibAlign* AliTPCcalibAlign::fgInstance = 0;
+Double_t AliTPCcalibAlign::fgkMergeEntriesCut=10000000.; //10**7 tracks
ClassImp(AliTPCcalibAlign)
fMatrixArray9(72*72),
fMatrixArray6(72*72),
fCombinedMatrixArray6(72),
- fCompTracklet(0), // tracklet comparison
fNoField(kFALSE),
fXIO(0),
fXmiddle(0),
fXquadrant = roc->GetPadRowRadii(36,53);
fXmiddle = ( roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
fXIO = ( roc->GetPadRowRadii(0,roc->GetNRows(0)-1)+roc->GetPadRowRadii(36,0))*0.5;
- fClusterDelta[0]=0; // cluster residuals
- fClusterDelta[1]=0; // cluster residuals
- fClusterDelta[2]=0; // cluster residuals - vertex constrained
- fClusterDelta[3]=0; // cluster residuals
- fClusterDelta[4]=0; // cluster residuals - ITS constrained
- fClusterDelta[5]=0; // cluster residuals
+ fClusterDelta[0]=0; // cluster residuals - Y
+ fClusterDelta[1]=0; // cluster residuals - Z
+
+
+ fTrackletDelta[0]=0; // tracklet residuals
+ fTrackletDelta[1]=0; // tracklet residuals
+ fTrackletDelta[2]=0; // tracklet residuals
+ fTrackletDelta[3]=0; // tracklet residuals
}
AliTPCcalibAlign::AliTPCcalibAlign(const Text_t *name, const Text_t *title)
fMatrixArray9(72*72),
fMatrixArray6(72*72),
fCombinedMatrixArray6(72),
- fCompTracklet(0), // tracklet comparison
fNoField(kFALSE),
fXIO(0),
fXmiddle(0),
fXIO = ( roc->GetPadRowRadii(0,roc->GetNRows(0)-1)+roc->GetPadRowRadii(36,0))*0.5;
fClusterDelta[0]=0; // cluster residuals
fClusterDelta[1]=0; // cluster residuals
- fClusterDelta[2]=0; // cluster residuals - vertex constrained
- fClusterDelta[3]=0; // cluster residuals
- fClusterDelta[4]=0; // cluster residuals - ITS constrained
- fClusterDelta[5]=0; // cluster residuals
-
-
+ fTrackletDelta[0]=0; // tracklet residuals
+ fTrackletDelta[1]=0; // tracklet residuals
+ fTrackletDelta[2]=0; // tracklet residuals
+ fTrackletDelta[3]=0; // tracklet residuals
}
fMatrixArray9(align.fMatrixArray9),
fMatrixArray6(align.fMatrixArray6),
fCombinedMatrixArray6(align.fCombinedMatrixArray6),
- fCompTracklet(align.fCompTracklet), // tracklet comparison
fNoField(align.fNoField),
fXIO(align.fXIO),
fXmiddle(align.fXmiddle),
}
fClusterDelta[0]=0; // cluster residuals
fClusterDelta[1]=0; // cluster residuals
- fClusterDelta[2]=0; // cluster residuals - vertex constrained
- fClusterDelta[3]=0; // cluster residuals
- fClusterDelta[4]=0; // cluster residuals - ITS constrained
- fClusterDelta[5]=0; // cluster residuals
+ fTrackletDelta[0]=0; // tracklet residuals
+ fTrackletDelta[1]=0; // tracklet residuals
+ fTrackletDelta[2]=0; // tracklet residuals
+ fTrackletDelta[3]=0; // tracklet residuals
}
fMatrixArray9.Delete(); // array of transnformtation matrix
fMatrixArray6.Delete(); // array of transnformtation matrix
- if (fCompTracklet) delete fCompTracklet;
fArraySectorIntParam.SetOwner(kTRUE); // array of sector alignment parameters
fArraySectorIntCovar.SetOwner(kTRUE); // array of sector alignment covariances
fArraySectorIntParam.Delete(); // array of sector alignment parameters
fArraySectorIntCovar.Delete(); // array of sector alignment covariances
- for (Int_t i=0; i<6; i++){
+ for (Int_t i=0; i<2; i++){
delete fClusterDelta[i]; // cluster residuals
}
+
+ for (Int_t i=0; i<4; i++){
+ delete fTrackletDelta[i]; // tracklet residuals
+ }
+
+
}
void AliTPCcalibAlign::Process(AliESDEvent *event) {
//
// Process pairs of cosmic tracks
//
+ const Double_t kptDownscale=50; // downscale factor for the low pt particels
if (!fClusterDelta[0]) MakeResidualHistos();
+ if (!fTrackletDelta[0]) MakeResidualHistosTracklet();
//
fCurrentEvent=event;
ExportTrackPoints(event); // export track points for external calibration
const Int_t kminCl = 40;
AliESDfriend *eESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend"));
if (!eESDfriend) return;
+ if (eESDfriend->TestSkipBit()) return;
Int_t ntracks=event->GetNumberOfTracks();
Float_t dca0[2];
Float_t dca1[2];
}
if (!seed0) continue;
fCurrentTrack=track0;
+ fCurrentFriendTrack=friendTrack;
fCurrentSeed=seed0;
fCurrentEvent=event;
- ProcessSeed(seed0);
+ Double_t scalept= TMath::Min(1./TMath::Abs(track0->GetParameter()[4]),2.);
+ Bool_t isSelected = (TMath::Exp(2*scalept)>kptDownscale*gRandom->Rndm());
+ if (isSelected) ProcessSeed(seed0);
}
//
// process cosmic pairs
//
// make a kalman tracklets out of seed
//
+ UpdateClusterDeltaField(seed);
TObjArray tracklets=
AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman,
kFALSE,20,4);
//
// Process function to fill fitters
//
+ if (!seed) return;
Double_t t1[10],t2[10];
Double_t &x1=t1[0], &y1=t1[1], &z1=t1[3], &dydx1=t1[2], &dzdx1=t1[4];
Double_t &x2=t2[0], &y2=t2[1], &z2=t2[3], &dydx2=t2[2], &dzdx2=t2[4];
//
Int_t accept = AcceptTracklet(tp1,tp2);
Int_t acceptLinear = AcceptTracklet(parLine1,parLine2);
-
- if (fStreamLevel>1 && seed){
+
+
+ if (fStreamLevel>1){
TTreeSRedirector *cstream = GetDebugStreamer();
if (cstream){
static TVectorD vec1(5);
// use Linear fit
//
if (nl1>10 && nl2>10 &&(acceptLinear==0)){
- if (seed) ProcessDiff(tp1,tp2, seed,s1,s2);
+ ProcessDiff(tp1,tp2, seed,s1,s2);
if (TMath::Abs(parLine1[2])<0.8 &&TMath::Abs(parLine1[2])<0.8 ){ //angular cut
FillHisto(parLine1,parLine2,s1,s2);
ProcessAlign(parLine1,parLine2,s1,s2);
+ FillHisto((AliExternalTrackParam*)&tp1,(AliExternalTrackParam*)&tp2,s1,s2);
+ FillHisto((AliExternalTrackParam*)&tp2,(AliExternalTrackParam*)&tp1,s2,s1);
//UpdateKalman(s1,s2,par1, cov1, par2, cov2); - OBSOLETE to be removed - 50 % of time here
}
}
//
// use Kalman if mag field
//
- if (seed) ProcessDiff(tp1,tp2, seed,s1,s2);
+ ProcessDiff(tp1,tp2, seed,s1,s2);
+ FillHisto((AliExternalTrackParam*)&tp1,(AliExternalTrackParam*)&tp2,s1,s2);
+ FillHisto((AliExternalTrackParam*)&tp2,(AliExternalTrackParam*)&tp1,s2,s1);
FillHisto(t1,t2,s1,s2);
ProcessAlign(t1,t2,s1,s2);
}
++fPoints[GetIndex(s1,s2)];
}
-void AliTPCcalibAlign::ProcessTree(TTree * chainTracklet, AliExternalComparison *comp){
- //
- // Process the debug streamer tree
- // Possible to modify selection criteria
- // Used with entry list
- //
- TTreeSRedirector * cstream = new TTreeSRedirector("aligndump.root");
-
- AliTPCcalibAlign *align = this;
- //
- TVectorD * vec1 = 0;
- TVectorD * vec2 = 0;
- AliExternalTrackParam * tp1 = 0;
- AliExternalTrackParam * tp2 = 0;
- Int_t s1 = 0;
- Int_t s2 = 0;
- Int_t npoints =0;
- {
- Int_t entries=chainTracklet->GetEntries();
- for (Int_t i=0; i< entries; i++){
- chainTracklet->GetBranch("tp1.")->SetAddress(&tp1);
- chainTracklet->GetBranch("tp2.")->SetAddress(&tp2);
- chainTracklet->GetBranch("v1.")->SetAddress(&vec1);
- chainTracklet->GetBranch("v2.")->SetAddress(&vec2);
- chainTracklet->GetBranch("s1")->SetAddress(&s1);
- chainTracklet->GetBranch("s2")->SetAddress(&s2);
- chainTracklet->GetEntry(i);
- if (!vec1) continue;
- if (!vec2) continue;
- if (!tp1) continue;
- if (!tp2) continue;
- if (!vec1->GetMatrixArray()) continue;
- if (!vec2->GetMatrixArray()) continue;
- // make a local copy
- AliExternalTrackParam par1(*tp1);
- AliExternalTrackParam par2(*tp2);
- TVectorD svec1(*vec1);
- TVectorD svec2(*vec2);
- //
- if (s1==s2) continue;
- if (i%100==0) printf("%d\t%d\t%d\t%d\t\n",i, npoints,s1,s2);
- AliExternalTrackParam cpar1(par1);
- AliExternalTrackParam cpar2(par2);
- Constrain1Pt(cpar1,par2,fNoField);
- Constrain1Pt(cpar2,par1,fNoField);
- Bool_t acceptComp = kFALSE;
- if (comp) acceptComp=comp->AcceptPair(&par1,&par2);
- if (comp) acceptComp&=comp->AcceptPair(&cpar1,&cpar2);
- //
- Int_t reject = align->AcceptTracklet(par1,par2);
- Int_t rejectC =align->AcceptTracklet(cpar1,cpar2);
-
- if (1||fStreamLevel>0){
- (*cstream)<<"Tracklet"<<
- "s1="<<s1<<
- "s2="<<s2<<
- "reject="<<reject<<
- "rejectC="<<rejectC<<
- "acceptComp="<<acceptComp<<
- "tp1.="<<&par1<<
- "tp2.="<<&par2<<
- "ctp1.="<<&cpar1<<
- "ctp2.="<<&cpar2<<
- "v1.="<<&svec1<<
- "v2.="<<&svec2<<
- "\n";
- }
- //
- if (fNoField){
- //
- //
- }
- if (acceptComp) comp->Process(&cpar1,&cpar2);
- //
- if (reject>0 || rejectC>0) continue;
- npoints++;
- align->ProcessTracklets(cpar1,cpar2,0,s1,s2);
- align->ProcessTracklets(cpar2,cpar1,0,s2,s1);
- }
- }
- delete cstream;
-}
Int_t AliTPCcalibAlign::AcceptTracklet(const AliExternalTrackParam &p1,
// 4 - local kz
//
axisName[0]="delta"; axisTitle[0]="#Delta (cm)";
- binsTrack[0]=60; xminTrack[0]=-0.6; xmaxTrack[0]=0.6;
+ if (TMath::Abs(AliTracker::GetBz())<0.01){
+ binsTrack[0]=60; xminTrack[0]=-1.2; xmaxTrack[0]=1.2;
+ }else{
+ binsTrack[0]=60; xminTrack[0]=-0.6; xmaxTrack[0]=0.6;
+ }
//
axisName[1]="sector"; axisTitle[1]="Sector Number";
binsTrack[1]=180; xminTrack[1]=0; xmaxTrack[1]=18;
//
- axisName[2]="localX"; axisTitle[2]="x (cm)";
+ axisName[2]="R"; axisTitle[2]="r (cm)";
binsTrack[2]=53; xminTrack[2]=85.; xmaxTrack[2]=245.;
//
- axisName[3]="kY"; axisTitle[3]="dy/dx";
- binsTrack[3]=1; xminTrack[3]=-0.16; xmaxTrack[3]=0.16;
//
- axisName[4]="kZ"; axisTitle[4]="dz/dx";
- binsTrack[4]=22; xminTrack[4]=-1.1; xmaxTrack[4]=1.1;
+ axisName[3]="kZ"; axisTitle[3]="dz/dx";
+ binsTrack[3]=36; xminTrack[3]=-1.8; xmaxTrack[3]=1.8;
//
- fClusterDelta[0] = new THnSparseF("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 5, binsTrack,xminTrack, xmaxTrack);
- fClusterDelta[1] = new THnSparseF("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 5, binsTrack,xminTrack, xmaxTrack);
- fClusterDelta[2] = new THnSparseF("#Delta_{Y} (cm) const","#Delta_{Y} (cm) const ", 5, binsTrack,xminTrack, xmaxTrack);
- fClusterDelta[3] = new THnSparseF("#Delta_{Z} (cm) const","#Delta_{Z} (cm) const", 5, binsTrack,xminTrack, xmaxTrack);
- fClusterDelta[4] = new THnSparseF("#Delta_{Y} (cm) ITS","#Delta_{Y} (cm) ITS", 5, binsTrack,xminTrack, xmaxTrack);
- fClusterDelta[5] = new THnSparseF("#Delta_{Z} (cm) ITS","#Delta_{Z} (cm) ITS", 5, binsTrack,xminTrack, xmaxTrack);
+ fClusterDelta[0] = new THnF("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 4, binsTrack,xminTrack, xmaxTrack);
+ fClusterDelta[1] = new THnF("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 4, binsTrack,xminTrack, xmaxTrack);
//
//
//
- for (Int_t ivar=0;ivar<6;ivar++){
- for (Int_t ivar2=0;ivar2<5;ivar2++){
+ for (Int_t ivar=0;ivar<2;ivar++){
+ for (Int_t ivar2=0;ivar2<4;ivar2++){
fClusterDelta[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
fClusterDelta[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
}
}
+
+void AliTPCcalibAlign::MakeResidualHistosTracklet(){
+ //
+ // Make tracklet residual histograms
+ //
+ Double_t xminTrack[9], xmaxTrack[9];
+ Int_t binsTrack[9];
+ TString axisName[9],axisTitle[9];
+ //
+ // 0 - delta of interest
+ // 1 - global phi in sector number as float
+ // 2 - local x
+ // 3 - local ky
+ // 4 - local kz
+ // 5 - sector 1
+ // 6 - sector 0
+ // 7 - z position 0
+
+ axisName[0]="delta"; axisTitle[0]="#Delta (cm)";
+ binsTrack[0]=60; xminTrack[0]=-0.5; xmaxTrack[0]=0.5;
+ //
+ axisName[1]="phi"; axisTitle[1]="#phi";
+ binsTrack[1]=90; xminTrack[1]=-TMath::Pi(); xmaxTrack[1]=TMath::Pi();
+ //
+ axisName[2]="localX"; axisTitle[2]="x (cm)";
+ binsTrack[2]=10; xminTrack[2]=120.; xmaxTrack[2]=200.;
+ //
+ axisName[3]="kY"; axisTitle[3]="dy/dx";
+ binsTrack[3]=10; xminTrack[3]=-0.5; xmaxTrack[3]=0.5;
+ //
+ axisName[4]="kZ"; axisTitle[4]="dz/dx";
+ binsTrack[4]=11; xminTrack[4]=-1.1; xmaxTrack[4]=1.1;
+ //
+ axisName[5]="is1"; axisTitle[5]="is1";
+ binsTrack[5]=72; xminTrack[5]=0; xmaxTrack[5]=72;
+ //
+ axisName[6]="is0"; axisTitle[6]="is0";
+ binsTrack[6]=72; xminTrack[6]=0; xmaxTrack[6]=72;
+ //
+ axisName[7]="z"; axisTitle[7]="z(cm)";
+ binsTrack[7]=12; xminTrack[7]=-240; xmaxTrack[7]=240;
+ //
+ axisName[8]="IsPrimary"; axisTitle[8]="Is Primary";
+ binsTrack[8]=2; xminTrack[8]=-0.1; xmaxTrack[8]=1.1;
+
+ //
+ xminTrack[0]=-0.25; xmaxTrack[0]=0.25;
+ fTrackletDelta[0] = new THnSparseF("#Delta_{Y} (cm)","#Delta_{Y} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0]=-0.5; xmaxTrack[0]=0.5;
+ fTrackletDelta[1] = new THnSparseF("#Delta_{Z} (cm)","#Delta_{Z} (cm)", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0]=-0.005; xmaxTrack[0]=0.005;
+ fTrackletDelta[2] = new THnSparseF("#Delta_{kY}","#Delta_{kY}", 9, binsTrack,xminTrack, xmaxTrack);
+ xminTrack[0]=-0.008; xmaxTrack[0]=0.008;
+ fTrackletDelta[3] = new THnSparseF("#Delta_{kZ}","#Delta_{kZ}", 9, binsTrack,xminTrack, xmaxTrack);
+ //
+ //
+ //
+ for (Int_t ivar=0;ivar<4;ivar++){
+ for (Int_t ivar2=0;ivar2<9;ivar2++){
+ fTrackletDelta[ivar]->GetAxis(ivar2)->SetName(axisName[ivar2].Data());
+ fTrackletDelta[ivar]->GetAxis(ivar2)->SetTitle(axisName[ivar2].Data());
+ }
+ }
+
+}
+
+
+
void AliTPCcalibAlign::FillHisto(const Double_t *t1,
const Double_t *t2,
Int_t s1,Int_t s2) {
}
+void AliTPCcalibAlign::FillHisto(AliExternalTrackParam *tp1,
+ AliExternalTrackParam *tp2,
+ Int_t s1,Int_t s2) {
+ //
+ // Fill residual histograms
+ // Track2-Track1
+ if (s2<s1) return;//
+ const Double_t kEpsilon=0.001;
+ Double_t x[9]={0,0,0,0,0,0,0,0,0};
+ AliExternalTrackParam p1(*tp1);
+ AliExternalTrackParam p2(*tp2);
+ if (s1%18==s2%18) {
+ // inner outer - match at the IROC-OROC boundary
+ if (!p1.PropagateTo(fXIO, AliTrackerBase::GetBz())) return;
+ }
+ if (!p2.Rotate(p1.GetAlpha())) return;
+ if (!p2.PropagateTo(p1.GetX(),AliTrackerBase::GetBz())) return;
+ if (TMath::Abs(p1.GetX()-p2.GetX())>kEpsilon) return;
+ Double_t xyz[3];
+ p1.GetXYZ(xyz);
+ x[1]=TMath::ATan2(xyz[1],xyz[0]);
+ x[2]=p1.GetX();
+ x[3]=0.5*(p1.GetSnp()+p2.GetSnp()); // mean snp
+ x[4]=0.5*(p1.GetTgl()+p2.GetTgl()); // mean tgl
+ x[5]=s2;
+ x[6]=s1;
+ x[7]=0.5*(p1.GetZ()+p2.GetZ());
+ // is primary ?
+ Int_t isPrimary = (TMath::Abs(p1.GetTgl()-p1.GetZ()/p1.GetX())<0.1) ? 1:0;
+ x[8]= isPrimary;
+ //
+ x[0]=p2.GetY()-p1.GetY();
+ fTrackletDelta[0]->Fill(x);
+ x[0]=p2.GetZ()-p1.GetZ();
+ fTrackletDelta[1]->Fill(x);
+ x[0]=p2.GetSnp()-p1.GetSnp();
+ fTrackletDelta[2]->Fill(x);
+ x[0]=p2.GetTgl()-p1.GetTgl();
+ fTrackletDelta[3]->Fill(x);
+ TTreeSRedirector *cstream = GetDebugStreamer();
+ if (cstream){
+ (*cstream)<<"trackletMatch"<<
+ "tp1.="<<tp1<< // input tracklet
+ "tp2.="<<tp2<<
+ "p1.="<<&p1<< // tracklet in the ref frame
+ "p2.="<<&p2<<
+ "s1="<<s1<<
+ "s2="<<s2<<
+ "\n";
+ }
+
+}
+
+
TH1 * AliTPCcalibAlign::GetHisto(HistoType type, Int_t s1, Int_t s2, Bool_t force)
{
}
TGraphErrors *gr = new TGraphErrors(npoints,xsec,ysec,0,0);
Char_t name[1000];
- sprintf(name,"Mat[%d,%d] Type=%d",i0,i1,type);
+ snprintf(name,100,"Mat[%d,%d] Type=%d",i0,i1,type);
gr->SetName(name);
return gr;
}
//
//
- TMatrixD * kpar = fSectorParamA;
- TMatrixD * kcov = fSectorCovarA;
- if (s1%36>=18){
- kpar = fSectorParamC;
- kcov = fSectorCovarC;
- }
- for (Int_t ipar=0;ipar<6;ipar++){
- Int_t isec1 = s1%18;
- Int_t isec2 = s2%18;
- if (s1>35) isec1+=18;
- if (s2>35) isec2+=18;
- param6s1(ipar)=(*kpar)(6*isec1+ipar,0);
- param6s2(ipar)=(*kpar)(6*isec2+ipar,0);
+ if (fSectorParamA){
+ TMatrixD * kpar = fSectorParamA;
+ TMatrixD * kcov = fSectorCovarA;
+ if (s1%36>=18){
+ kpar = fSectorParamC;
+ kcov = fSectorCovarC;
+ }
+ for (Int_t ipar=0;ipar<6;ipar++){
+ Int_t isec1 = s1%18;
+ Int_t isec2 = s2%18;
+ if (s1>35) isec1+=18;
+ if (s2>35) isec2+=18;
+ param6s1(ipar)=(*kpar)(6*isec1+ipar,0);
+ param6s2(ipar)=(*kpar)(6*isec2+ipar,0);
+ }
}
-
-
+
Double_t dy=0, dz=0, dphi=0,dtheta=0;
Double_t sy=0, sz=0, sphi=0,stheta=0;
Double_t ny=0, nz=0, nphi=0,ntheta=0;
UpdateKalman(*fSectorParamA,*fSectorCovarA,*align->fSectorParamA,*align->fSectorCovarA);
UpdateKalman(*fSectorParamC,*fSectorCovarC,*align->fSectorParamC,*align->fSectorCovarC);
}
- if (!fClusterDelta[1]) MakeResidualHistos();
+ if (!fClusterDelta[0]) MakeResidualHistos();
- for (Int_t i=0; i<6; i++){
- if (i==0 || i==3){
- delete fClusterDelta[i]; // memory problem do not fit into memory
- fClusterDelta[i]=0; //
- delete align->fClusterDelta[i]; // memory problem do not fit into memory
- align->fClusterDelta[i]=0; //
+ for (Int_t i=0; i<2; i++){
+ if (align->fClusterDelta[i]){
+ fClusterDelta[i]->Add(align->fClusterDelta[i]);
}
- if (i==3) continue; // skip constrained histo z
- if (i==0) continue; // skip non constrained histo y
- if (align->fClusterDelta[i]) fClusterDelta[i]->Add(align->fClusterDelta[i]);
}
+
+
+ for (Int_t i=0; i<4; i++){
+ if (!fTrackletDelta[i] && align->fTrackletDelta[i]) {
+ fTrackletDelta[i]= (THnSparse*)(align->fTrackletDelta[i]->Clone());
+ continue;
+ }
+ if (align->fTrackletDelta[i]) {
+ if (fTrackletDelta[i]->GetEntries()<fgkMergeEntriesCut){
+ fTrackletDelta[i]->Add(align->fTrackletDelta[i]);
+ }
+ }
+ }
+
}
Double_t AliTPCcalibAlign::Correct(Int_t type, Int_t value, Int_t s1, Int_t s2, Double_t x1, Double_t y1, Double_t z1, Double_t dydx1,Double_t dzdx1){
return nf;
}
+void AliTPCcalibAlign::UpdateClusterDeltaField(const AliTPCseed * seed){
+ //
+ // Update the cluster residula histograms for setup with field
+ // Kalman track fitting is used
+ // Only high momenta primary tracks used
+ //
+ // 1. Apply selection
+ // 2. Refit the track - in-out
+ // 3. Refit the track - out-in
+ // 4. Combine In and Out track - - fil cluster residuals
+ //
+ if (!fCurrentFriendTrack) return;
+ if (!fCurrentFriendTrack->GetTPCOut()) return;
+ const Double_t kPtCut=1.0; // pt
+ const Double_t kSnpCut=0.2; // snp cut
+ const Double_t kNclCut=120; //
+ const Double_t kVertexCut=1;
+ const Double_t kMaxDist=0.5; // max distance between tracks and cluster
+ const Double_t kEdgeCut = 2.5;
+ const Double_t kDelta2=0.2*0.2; // initial increase in covar matrix
+ const Double_t kSigma=0.3; // error increase towards edges of TPC
+ const Double_t kSkipBoundary=7.5; // skip track updates in the boundary IFC,OFC, IO
+ //
+ if (!fCurrentTrack) return;
+ if (!fCurrentFriendTrack) return;
+ Float_t vertexXY=0,vertexZ=0;
+ fCurrentTrack->GetImpactParameters(vertexXY,vertexZ);
+ if (TMath::Abs(vertexXY)>kVertexCut) return;
+ if (TMath::Abs(vertexZ)>kVertexCut) return;
+ if (TMath::Abs(seed->Pt())<kPtCut) return;
+ if (seed->GetNumberOfClusters()<kNclCut) return;
+ if (TMath::Abs(seed->GetSnp())>kSnpCut) return;
+ if (!fClusterDelta[0]) MakeResidualHistos();
+ //
+ AliExternalTrackParam fitIn[160];
+ AliExternalTrackParam fitOut[160];
+ AliTPCROC * roc = AliTPCROC::Instance();
+ Double_t xmiddle = ( roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
+ Double_t xDiff = ( -roc->GetPadRowRadii(0,0)+roc->GetPadRowRadii(36,roc->GetNRows(36)-1))*0.5;
+ Double_t xIFC = ( roc->GetPadRowRadii(0,0));
+ Double_t xOFC = ( roc->GetPadRowRadii(36,roc->GetNRows(36)-1));
+ //
+ Int_t detector=-1;
+ //
+ //
+ AliExternalTrackParam trackIn = *(fCurrentTrack->GetInnerParam());
+ AliExternalTrackParam trackOut = *(fCurrentFriendTrack->GetTPCOut());
+ trackIn.ResetCovariance(10);
+ trackOut.ResetCovariance(10);
+ Double_t *covarIn = (Double_t*)trackIn.GetCovariance();
+ Double_t *covarOut = (Double_t*)trackOut.GetCovariance();
+ covarIn[0]+=kDelta2; covarIn[2]+=kDelta2;
+ covarIn[5]+=kDelta2/(100.*100.); covarIn[9]=kDelta2/(100.*100.);
+ covarIn[14]+=kDelta2/(5.*5.);
+ covarOut[0]+=kDelta2; covarOut[2]+=kDelta2;
+ covarOut[5]+=kDelta2/(100.*100.); covarOut[9]=kDelta2/(100.*100.);
+ covarOut[14]+=kDelta2/(5.*5.);
+ //
+ static Double_t mass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass();
+ //
+ Int_t ncl=0;
+ for (Int_t irow=0; irow<160; irow++){
+ AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
+ if (!cl) continue;
+ if (cl->GetX()<80) continue;
+ if (detector<0) detector=cl->GetDetector()%36;
+ if (detector!=cl->GetDetector()%36) return; // cluster from different sectors
+ // skip such tracks
+ ncl++;
+ }
+ if (ncl<kNclCut) return;
+ Int_t nclIn=0,nclOut=0;
+ Double_t xyz[3];
+ //
+ // Refit out - store residual maps
+ //
+ for (Int_t irow=0; irow<160; irow++){
+ AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
+ if (!cl) continue;
+ if (cl->GetX()<80) continue;
+ if (detector<0) detector=cl->GetDetector()%36;
+ Int_t sector = cl->GetDetector();
+ Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha();
+ if (cl->GetDetector()%36!=detector) continue;
+ if (TMath::Abs(dalpha)>0.01){
+ if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
+ }
+ Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
+ Double_t cov[3]={0.1,0.,0.1};
+ Double_t dedge = cl->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(trackOut.GetY());
+ Double_t dmiddle = TMath::Abs(cl->GetX()-xmiddle)/xDiff;
+ dmiddle*=dmiddle;
+ //
+ cov[0]+=kSigma*dmiddle; // bigger error at boundary
+ cov[0]+=kSigma*dmiddle; // bigger error at boundary
+ cov[2]+=kSigma*dmiddle; // bigger error at boundary
+ cov[2]+=kSigma*dmiddle; // bigger error at boundary
+ cov[0]+=kSigma/dedge; // bigger error close to the boundary
+ cov[2]+=kSigma/dedge; // bigger error close to the boundary
+ cov[0]*=cov[0];
+ cov[2]*=cov[2];
+ if (!AliTracker::PropagateTrackToBxByBz(&trackOut, r[0],mass,1.,kFALSE)) continue;
+ if (TMath::Abs(dedge)<kEdgeCut) continue;
+ //
+ Bool_t doUpdate=kTRUE;
+ if (TMath::Abs(cl->GetX()-xIFC)<kSkipBoundary) doUpdate=kFALSE;
+ if (TMath::Abs(cl->GetX()-xOFC)<kSkipBoundary) doUpdate=kFALSE;
+ if (TMath::Abs(cl->GetX()-fXIO)<kSkipBoundary) doUpdate=kFALSE;
+ //
+ if (TMath::Abs(cl->GetY()-trackOut.GetY())<kMaxDist){
+ nclOut++;
+ if (doUpdate) trackOut.Update(&r[1],cov);
+ }
+ fitOut[irow]=trackOut;
+ }
+
+ //
+ // Refit In - store residual maps
+ //
+ for (Int_t irow=159; irow>=0; irow--){
+ AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
+ if (!cl) continue;
+ if (cl->GetX()<80) continue;
+ if (detector<0) detector=cl->GetDetector()%36;
+ Int_t sector = cl->GetDetector();
+ Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha();
+ if (cl->GetDetector()%36!=detector) continue;
+ if (TMath::Abs(dalpha)>0.01){
+ if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break;
+ }
+ Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()};
+ Double_t cov[3]={0.1,0.,0.1};
+ Double_t dedge = cl->GetX()*TMath::Tan(TMath::Pi()/18.)-TMath::Abs(trackIn.GetY());
+ Double_t dmiddle = TMath::Abs(cl->GetX()-xmiddle)/xDiff;
+ dmiddle*=dmiddle;
+ //
+ cov[0]+=kSigma*dmiddle; // bigger error at boundary
+ cov[0]+=kSigma*dmiddle; // bigger error at boundary
+ cov[2]+=kSigma*dmiddle; // bigger error at boundary
+ cov[2]+=kSigma*dmiddle; // bigger error at boundary
+ cov[0]+=kSigma/dedge; // bigger error close to the boundary
+ cov[2]+=kSigma/dedge; // bigger error close to the boundary
+ cov[0]*=cov[0];
+ cov[2]*=cov[2];
+ if (!AliTracker::PropagateTrackToBxByBz(&trackIn, r[0],mass,1.,kFALSE)) continue;
+ if (TMath::Abs(dedge)<kEdgeCut) continue;
+ Bool_t doUpdate=kTRUE;
+ if (TMath::Abs(cl->GetX()-xIFC)<kSkipBoundary) doUpdate=kFALSE;
+ if (TMath::Abs(cl->GetX()-xOFC)<kSkipBoundary) doUpdate=kFALSE;
+ if (TMath::Abs(cl->GetX()-fXIO)<kSkipBoundary) doUpdate=kFALSE;
+ if (TMath::Abs(cl->GetY()-trackIn.GetY())<kMaxDist){
+ nclIn++;
+ if (doUpdate) trackIn.Update(&r[1],cov);
+ }
+ fitIn[irow]=trackIn;
+ }
+ //
+ //
+ for (Int_t irow=159; irow>=0; irow--){
+ //
+ // Update kalman - +- direction
+ // Store cluster residuals
+ AliTPCclusterMI *cl=seed->GetClusterPointer(irow);
+ if (!cl) continue;
+ if (cl->GetX()<80) continue;
+ if (detector<0) detector=cl->GetDetector()%36;
+ if (cl->GetDetector()%36!=detector) continue;
+ if (fitIn[irow].GetX()<80) continue;
+ if (fitOut[irow].GetX()<80) continue;
+ AliExternalTrackParam trackSmooth = fitIn[irow];
+ AliTrackerBase::UpdateTrack(trackSmooth, fitOut[irow]);
+ //
+ Double_t resVector[5];
+ trackSmooth.GetXYZ(xyz);
+ resVector[1]= 9.*TMath::ATan2(xyz[1],xyz[0])/TMath::Pi();
+ if (resVector[1]<0) resVector[1]+=18;
+ resVector[2]= TMath::Sqrt(cl->GetX()*cl->GetX()+cl->GetY()*cl->GetY());
+ resVector[3]= cl->GetZ()/resVector[2];
+ //
+ resVector[0]= cl->GetY()-trackSmooth.GetY();
+ fClusterDelta[0]->Fill(resVector);
+ resVector[0]= cl->GetZ()-trackSmooth.GetZ();
+ fClusterDelta[1]->Fill(resVector);
+ }
+
+}
+
+
void AliTPCcalibAlign::UpdateAlignSector(const AliTPCseed * track,Int_t isec){
//
- // Update Kalman filter of Alignment
+ // Update Kalman filter of Alignment - only setup without filed
// IROC - OROC quadrants
//
+ if (TMath::Abs(AliTracker::GetBz())>0.5) return;
if (!fClusterDelta[0]) MakeResidualHistos();
- const Int_t kMinClusterF=40;
+ // const Int_t kMinClusterF=40;
+ const Int_t kMinClusterFit=10;
const Int_t kMinClusterQ=10;
//
const Int_t kdrow1Fit =5; // rows to skip from fit at the end
c->GetY(),yfit, c->GetZ(), pyf[1], c->GetMax(),2.5);
if (TMath::Abs(corrtrY)>kMaxCorrY) continue;
}
- fyf.AddPoint(x,c->GetY(),0.1);
- fzf.AddPoint(x,c->GetZ(),0.1);
+ if (TMath::Abs(x[0])<10){
+ fyf.AddPoint(x,c->GetY(),0.1); //use only middle rows+-10cm
+ fzf.AddPoint(x,c->GetZ(),0.1);
+ }
}
nf = fyf.GetNpoints();
- if (nf<kMinClusterF) return; // not enough points - skip
+ if (fyf.GetNpoints()<kMinClusterFit) return; // not enough points - skip
+ if (fzf.GetNpoints()<kMinClusterFit) return; // not enough points - skip
fyf.Eval();
fyf.GetParameters(pyf);
fyf.GetErrors(peyf);
//
//
//
- TVectorD vecX(2*nf+kdrow0Fit+kdrow1Fit+5); // x vector
- TVectorD vecY(2*nf+kdrow0Fit+kdrow1Fit+5); // residuals vector
- TVectorD vecZ(2*nf+kdrow0Fit+kdrow1Fit+5); // residuals vector
+ TVectorD vecX(160); // x vector
+ TVectorD vecY(160); // residuals vector
+ TVectorD vecZ(160); // residuals vector
TVectorD vPosG(3); //vertex position
TVectorD vPosL(3); // vertex position in the TPC local system
TVectorF vImpact(2); //track impact parameter
- Double_t tofSignal= fCurrentTrack->GetTOFsignal(); // tof signal
+ // Double_t tofSignal= fCurrentTrack->GetTOFsignal(); // tof signal
TVectorF tpcPosG(3); // global position of track at the middle of fXmiddle
Double_t lphi = TMath::ATan2(pyf[0],fXmiddle); // expected local phi angle - if vertex at 0
Double_t gphi = 2.*TMath::Pi()*(isec%18+0.5)/18.+lphi; // expected global phi if vertex at 0
// get constrained parameters
//
Double_t xvertex=vPosL[0]-fXmiddle;
- fyf.AddPoint(&xvertex,vPosL[1], 0.1+TMath::Abs(vImpact[0]));
- fzf.AddPoint(&xvertex,vPosL[2], 0.1+TMath::Abs(vImpact[1]));
+ fyf.AddPoint(&xvertex,vPosL[1], 0.00001);
+ fzf.AddPoint(&xvertex,vPosL[2], 2.);
fyf.Eval();
fyf.GetParameters(pyfc);
fzf.Eval();
//
// Fill THnSparse cluster residuals
// use only primary candidates with ITS signal
- if (nf>100&&fCurrentTrack->IsOn(0x4)&&TMath::Abs(vImpact[0])<1&&TMath::Abs(vImpact[1])<1){
+ if (fCurrentTrack->IsOn(0x4)&&TMath::Abs(vImpact[0])<1&&TMath::Abs(vImpact[1])<1){
Double_t resVector[5];
resVector[1]= 9.*gphi/TMath::Pi();
- resVector[2]= c->GetX();
- resVector[3]= c->GetY()/c->GetX();
- resVector[4]= c->GetZ()/c->GetX();
+ resVector[2]= TMath::Sqrt(c->GetX()*c->GetX()+c->GetY()*c->GetY());
+ resVector[3]= c->GetZ()/resVector[2];
//
- resVector[0]= c->GetY()-yfit;
- //fClusterDelta[0]->Fill(resVector);
- resVector[0]= c->GetZ()-zfit;
- fClusterDelta[1]->Fill(resVector);
//
resVector[0]= c->GetY()-yfitC;
- fClusterDelta[2]->Fill(resVector);
+ fClusterDelta[0]->Fill(resVector);
resVector[0]= c->GetZ()-zfitC;
- //fClusterDelta[3]->Fill(resVector);
-
+ fClusterDelta[1]->Fill(resVector);
}
if (c->GetRow()<kdrow0Fit) continue;
if (c->GetRow()>159-kdrow1Fit) continue;
"vPosG.="<<&vPosG<< // vertex position in global system
"vPosL.="<<&vPosL<< // vertex position in local system
"vImpact.="<<&vImpact<< // track impact parameter
- "tofSignal="<<tofSignal<< // tof signal
+ //"tofSignal="<<tofSignal<< // tof signal
"tpcPosG.="<<&tpcPosG<< // global position of track at the middle of fXmiddle
"lphi="<<lphi<< // expected local phi angle - if vertex at 0
"gphi="<<gphi<< // expected global phi if vertex at 0
}
}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff