#include "AliGeomManager.h"
#include "AliCluster.h"
#include "AliKalmanTrack.h"
+#include "AliGlobalQADataMaker.h"
extern TGeoManager *gGeoManager;
Double_t AliTracker::GetBz()
{
AliMagF* fld = (AliMagF*)TGeoGlobalMagField::Instance()->GetField();
- if (!fld) return kAlmost0Field;
- Double_t bz = -fld->SolenoidField();
- return TMath::Sign(kAlmost0Field,bz) + bz;
+ if (!fld) return 0.5*kAlmost0Field;
+ Double_t bz = fld->SolenoidField();
+ return TMath::Sign(0.5*kAlmost0Field,bz) + bz;
}
//__________________________________________________________________________
// Returns Bz (kG) at the point "r" .
//------------------------------------------------------------------
AliMagF* fld = (AliMagF*)TGeoGlobalMagField::Instance()->GetField();
- if (!fld) return kAlmost0Field;
- Double_t bz = -fld->GetBz(r);
- return TMath::Sign(kAlmost0Field,bz) + bz;
+ if (!fld) return 0.5*kAlmost0Field;
+ Double_t bz = fld->GetBz(r);
+ return TMath::Sign(0.5*kAlmost0Field,bz) + bz;
+}
+
+//__________________________________________________________________________
+void AliTracker::GetBxByBz(const Double_t r[3], Double_t b[3]) {
+ //------------------------------------------------------------------
+ // Returns Bx, By and Bz (kG) at the point "r" .
+ //------------------------------------------------------------------
+ AliMagF* fld = (AliMagF*)TGeoGlobalMagField::Instance()->GetField();
+ if (!fld) {
+ b[0] = b[1] = 0.;
+ b[2] = 0.5*kAlmost0Field;
+ return;
+ }
+
+ if (fld->IsUniform()) {
+ b[0] = b[1] = 0.;
+ b[2] = fld->SolenoidField();
+ } else {
+ fld->Field(r,b);
+ }
+ b[2] = (TMath::Sign(0.5*kAlmost0Field,b[2]) + b[2]);
+ return;
}
//__________________________________________________________________________
return kTRUE;
}
+Bool_t
+AliTracker::PropagateTrackToBxByBz(AliExternalTrackParam *track,
+Double_t xToGo,
+Double_t mass, Double_t maxStep, Bool_t rotateTo, Double_t maxSnp){
+ //----------------------------------------------------------------
+ //
+ // Propagates the track to the plane X=xk (cm)
+ // taking into account all the three components of the magnetic field
+ // and correcting for the crossed material.
+ //
+ // mass - mass used in propagation - used for energy loss correction
+ // maxStep - maximal step for propagation
+ //
+ // Origin: Marian Ivanov, Marian.Ivanov@cern.ch
+ //
+ //----------------------------------------------------------------
+ const Double_t kEpsilon = 0.00001;
+ Double_t xpos = track->GetX();
+ Double_t dir = (xpos<xToGo) ? 1.:-1.;
+ //
+ while ( (xToGo-xpos)*dir > kEpsilon){
+ Double_t step = dir*TMath::Min(TMath::Abs(xToGo-xpos), maxStep);
+ Double_t x = xpos+step;
+ Double_t xyz0[3],xyz1[3],param[7];
+ track->GetXYZ(xyz0); //starting global position
+
+ Double_t b[3]; GetBxByBz(xyz0,b); // getting the local Bx, By and Bz
+
+ if (!track->GetXYZAt(x,b[2],xyz1)) return kFALSE; // no prolongation
+ xyz1[2]+=kEpsilon; // waiting for bug correction in geo
+
+ if (TMath::Abs(track->GetSnpAt(x,b[2])) >= maxSnp) return kFALSE;
+ if (!track->PropagateToBxByBz(x,b)) return kFALSE;
+
+ MeanMaterialBudget(xyz0,xyz1,param);
+ Double_t xrho=param[0]*param[4], xx0=param[1];
+
+ if (!track->CorrectForMeanMaterial(xx0,xrho,mass)) return kFALSE;
+ if (rotateTo){
+ if (TMath::Abs(track->GetSnp()) >= maxSnp) return kFALSE;
+ track->GetXYZ(xyz0); // global position
+ Double_t alphan = TMath::ATan2(xyz0[1], xyz0[0]);
+ //
+ Double_t ca=TMath::Cos(alphan-track->GetAlpha()),
+ sa=TMath::Sin(alphan-track->GetAlpha());
+ Double_t sf=track->GetSnp(), cf=TMath::Sqrt((1.-sf)*(1.+sf));
+ Double_t sinNew = sf*ca - cf*sa;
+ if (TMath::Abs(sinNew) >= maxSnp) return kFALSE;
+ if (!track->Rotate(alphan)) return kFALSE;
+ }
+ xpos = track->GetX();
+ }
+ return kTRUE;
+}
+
void AliTracker::FillResiduals(const AliExternalTrackParam *t,
Double_t *p, Double_t *cov,
UShort_t id, Bool_t updated) {
if (!residuals) return;
TH1F *h=0;
+ Int_t esIndex = AliRecoParam::AConvert(fEventSpecie) ;
AliGeomManager::ELayerID layer=AliGeomManager::VolUIDToLayer(id);
- h=(TH1F*)fResiduals[fEventSpecie]->At(2*layer-2);
+ h=(TH1F*)fResiduals[esIndex]->At(2*layer-2);
h->Fill(residuals[0]);
- h=(TH1F*)fResiduals[fEventSpecie]->At(2*layer-1);
+ h=(TH1F*)fResiduals[esIndex]->At(2*layer-1);
h->Fill(residuals[1]);
if (layer==5) {
if (p[1]<0) { // SSD1 absolute residuals
- ((TH1F*)fResiduals[fEventSpecie]->At(40))->Fill(t->GetY()-p[0]); //C side
- ((TH1F*)fResiduals[fEventSpecie]->At(41))->Fill(t->GetZ()-p[1]);
+ ((TH1F*)fResiduals[esIndex]->At(40))->Fill(t->GetY()-p[0]); //C side
+ ((TH1F*)fResiduals[esIndex]->At(41))->Fill(t->GetZ()-p[1]);
} else {
- ((TH1F*)fResiduals[fEventSpecie]->At(42))->Fill(t->GetY()-p[0]); //A side
- ((TH1F*)fResiduals[fEventSpecie]->At(43))->Fill(t->GetZ()-p[1]);
+ ((TH1F*)fResiduals[esIndex]->At(42))->Fill(t->GetY()-p[0]); //A side
+ ((TH1F*)fResiduals[esIndex]->At(43))->Fill(t->GetZ()-p[1]);
}
}
if (layer==6) { // SSD2 absolute residuals
if (p[1]<0) {
- ((TH1F*)fResiduals[fEventSpecie]->At(44))->Fill(t->GetY()-p[0]); //C side
- ((TH1F*)fResiduals[fEventSpecie]->At(45))->Fill(t->GetZ()-p[1]);
+ ((TH1F*)fResiduals[esIndex]->At(44))->Fill(t->GetY()-p[0]); //C side
+ ((TH1F*)fResiduals[esIndex]->At(45))->Fill(t->GetZ()-p[1]);
} else {
- ((TH1F*)fResiduals[fEventSpecie]->At(46))->Fill(t->GetY()-p[0]); //A side
- ((TH1F*)fResiduals[fEventSpecie]->At(47))->Fill(t->GetZ()-p[1]);
+ ((TH1F*)fResiduals[esIndex]->At(46))->Fill(t->GetY()-p[0]); //A side
+ ((TH1F*)fResiduals[esIndex]->At(47))->Fill(t->GetZ()-p[1]);
}
}
Double_t residuals[2]={trkLoc[0]-clsLoc[0], trkLoc[2]-clsLoc[2]};
TH1F *h=0;
+ Int_t esIndex = AliRecoParam::AConvert(fEventSpecie) ;
AliGeomManager::ELayerID layer=AliGeomManager::VolUIDToLayer(id);
- h=(TH1F*)fResiduals[fEventSpecie]->At(2*layer-2);
+ h=(TH1F*)fResiduals[esIndex]->At(2*layer-2);
h->Fill(residuals[0]);
- h=(TH1F*)fResiduals[fEventSpecie]->At(2*layer-1);
+ h=(TH1F*)fResiduals[esIndex]->At(2*layer-1);
h->Fill(residuals[1]);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff