#include <AliCDBId.h>
#include <AliCDBMetaData.h>
+#include "TRandom.h"
#include "AliExternalTrackParam.h"
#include "AliTrackPointArray.h"
#include "TDatabasePDG.h"
#include "AliTrackerBase.h"
#include "AliTPCROC.h"
+#include "THnSparse.h"
#include "AliTPCCorrection.h"
AliTrackPointArray pointArray0(npoints0);
AliTrackPointArray pointArray1(npoints0);
Double_t xyz[3];
- AliTrackerBase::PropagateTrackTo(&track,kRTPC0,kMass,3,kTRUE,kMaxSnp);
+ AliTrackerBase::PropagateTrackToBxByBz(&track,kRTPC0,kMass,3,kTRUE,kMaxSnp);
//
// simulate the track
Int_t npoints=0;
Float_t covPoint[6]={0,0,0, kSigmaY*kSigmaY,0,kSigmaZ*kSigmaZ}; //covariance at the local frame
for (Double_t radius=kRTPC0; radius<kRTPC1; radius++){
- AliTrackerBase::PropagateTrackTo(&track,radius,kMass,3,kTRUE,kMaxSnp);
+ AliTrackerBase::PropagateTrackToBxByBz(&track,radius,kMass,3,kTRUE,kMaxSnp);
track.GetXYZ(xyz);
+ xyz[0]+=gRandom->Gaus(0,0.001);
+ xyz[1]+=gRandom->Gaus(0,0.001);
AliTrackPoint pIn0; // space point
AliTrackPoint pIn1;
Int_t sector= (xyz[2]>0)? 0:18;
AliTrackPoint point1,point2,point3;
if (dir==1) { //make seed inner
pointArray0.GetPoint(point1,1);
- pointArray0.GetPoint(point2,10);
- pointArray0.GetPoint(point3,20);
+ pointArray0.GetPoint(point2,30);
+ pointArray0.GetPoint(point3,60);
}
if (dir==-1){ //make seed outer
- pointArray0.GetPoint(point1,npoints-20);
- pointArray0.GetPoint(point2,npoints-10);
+ pointArray0.GetPoint(point1,npoints-60);
+ pointArray0.GetPoint(point2,npoints-30);
pointArray0.GetPoint(point3,npoints-1);
}
track0 = AliTrackerBase::MakeSeed(point1, point2, point3);
for (Int_t jpoint=0; jpoint<npoints; jpoint++){
- Int_t ipoint= (dir>0) ? ipoint: npoints-1-jpoint;
+ Int_t ipoint= (dir>0) ? jpoint: npoints-1-jpoint;
//
AliTrackPoint pIn0;
AliTrackPoint pIn1;
AliTrackPoint prot0 = pIn0.Rotate(track0->GetAlpha()); // rotate to the local frame - non distoted point
AliTrackPoint prot1 = pIn1.Rotate(track1->GetAlpha()); // rotate to the local frame - distorted point
//
- AliTrackerBase::PropagateTrackTo(track0,prot0.GetX(),kMass,1,kFALSE,kMaxSnp);
- AliTrackerBase::PropagateTrackTo(track1,prot1.GetX(),kMass,1,kFALSE,kMaxSnp);
- track.GetXYZ(xyz);
+ AliTrackerBase::PropagateTrackToBxByBz(track0,prot0.GetX(),kMass,3,kFALSE,kMaxSnp);
+ AliTrackerBase::PropagateTrackToBxByBz(track1,prot0.GetX(),kMass,3,kFALSE,kMaxSnp);
+ track.GetXYZ(xyz); // distorted track also propagated to the same reference radius
//
Double_t pointPos[2]={0,0};
Double_t pointCov[3]={0,0,0};
pointCov[2]=prot0.GetCov()[5];//sigmaz^2
track0->Update(pointPos,pointCov);
//
- pointPos[0]=prot1.GetY();//local y
- pointPos[1]=prot1.GetZ();//local z
+ Double_t deltaX=prot1.GetX()-prot0.GetX(); // delta X
+ Double_t deltaYX=deltaX*TMath::Tan(TMath::ASin(track1->GetSnp())); // deltaY due delta X
+ Double_t deltaZX=deltaX*track1->GetTgl(); // deltaZ due delta X
+
+ pointPos[0]=prot1.GetY()-deltaYX;//local y
+ pointPos[1]=prot1.GetZ()-deltaZX;//local z
pointCov[0]=prot1.GetCov()[3];//simay^2
pointCov[1]=prot1.GetCov()[4];//sigmayz
pointCov[2]=prot1.GetCov()[5];//sigmaz^2
track1->Update(pointPos,pointCov);
}
- AliTrackerBase::PropagateTrackTo(track0,refX,kMass,2.,kTRUE,kMaxSnp);
+ AliTrackerBase::PropagateTrackToBxByBz(track0,refX,kMass,2.,kTRUE,kMaxSnp);
track1->Rotate(track0->GetAlpha());
track1->PropagateTo(track0->GetX(),AliTrackerBase::GetBz());
// corrArray - array with partial corrections
// step - skipe entries - if 1 all entries processed - it is slow
// debug 0 if debug on also space points dumped - it is slow
+ const Double_t kMaxSnp = 0.85;
+ const Double_t kMass = TDatabasePDG::Instance()->GetParticle("pi+")->Mass();
+ // const Double_t kB2C=-0.299792458e-3;
const Int_t kMinEntries=50;
Double_t phi,theta, snp, mean,rms, entries;
tinput->SetBranchAddress("theta",&theta);
Double_t refX=0;
Int_t dir=0;
if (dtype==0) {refX=85; dir=-1;}
- if (dtype==1) {refX=245; dir=1;}
- if (dtype==2) {refX=0; dir=-1;}
+ if (dtype==1) {refX=275; dir=1;}
+ if (dtype==2) {refX=85; dir=-1;}
//
for (Int_t ientry=0; ientry<nentries; ientry+=step){
tinput->GetEntry(ientry);
tPar[1]=theta*refX;
tPar[2]=snp;
tPar[3]=theta;
- tPar[4]=0.00001; // should be calculated - non equal to 0
- cout<<endl<<endl;
- cout<<"Entry\n\n"<<ientry<<endl;
- cout<<"dtype="<<dtype<< // detector match type
- "ptype="<<ptype<< // parameter type
- "theta="<<theta<< // theta
- "phi="<<phi<< // phi
- "snp="<<phi<< // snp
- "mean="<<mean<< // mean dist value
- "rms="<<rms<< // rms
- "entries="<<entries<<endl; // number of entries in bin
-
+ tPar[4]=(gRandom->Rndm()-0.5)*0.02; // should be calculated - non equal to 0
+ Double_t bz=AliTrackerBase::GetBz();
+ if (refX>10. && TMath::Abs(bz)>0.1 ) tPar[4]=snp/(refX*bz*kB2C*2);
+ tPar[4]+=(gRandom->Rndm()-0.5)*0.02;
if (TMath::Abs(snp)>0.251) continue;
(*pcstream)<<"fit"<<
+ "bz="<<bz<< // magnetic filed used
"dtype="<<dtype<< // detector match type
"ptype="<<ptype<< // parameter type
"theta="<<theta<< // theta
AliExternalTrackParam *trackOut = 0;
if (debug) trackOut=corr->FitDistortedTrack(trackIn, refX, dir,pcstream);
if (!debug) trackOut=corr->FitDistortedTrack(trackIn, refX, dir,0);
+ if (dtype==0) {refX=85; dir=-1;}
+ if (dtype==1) {refX=275; dir=1;}
+ if (dtype==2) {refX=0; dir=-1;}
+ //
+ AliTrackerBase::PropagateTrackToBxByBz(&trackIn,refX,kMass,3,kTRUE,kMaxSnp);
+ AliTrackerBase::PropagateTrackToBxByBz(trackOut,refX,kMass,3,kTRUE,kMaxSnp);
+ //
corrections[icorr]= trackOut->GetParameter()[ptype]-trackIn.GetParameter()[ptype];
delete trackOut;
}
+void AliTPCCorrection::MakeDistortionMap(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run){
+ //
+ // make a distortion map out ou fthe residual histogram
+ // Results are written to the debug streamer - pcstream
+ // Parameters:
+ // his0 - input (4D) residual histogram
+ // pcstream - file to write the tree
+ // run - run number
+ // marian.ivanov@cern.ch
+ const Int_t kMinEntries=50;
+ Int_t nbins1=his0->GetAxis(1)->GetNbins();
+ Int_t first1=his0->GetAxis(1)->GetFirst();
+ Int_t last1 =his0->GetAxis(1)->GetLast();
+ //
+ Double_t bz=AliTrackerBase::GetBz();
+ Int_t idim[4]={0,1,2,3};
+ for (Int_t ibin1=first1; ibin1<last1; ibin1++){ //axis 1 - theta
+ //
+ his0->GetAxis(1)->SetRange(TMath::Max(ibin1,1),TMath::Min(ibin1,nbins1));
+ Double_t x1= his0->GetAxis(1)->GetBinCenter(ibin1);
+ THnSparse * his1 = his0->Projection(4,idim); // projected histogram according range1
+ Int_t nbins3 = his1->GetAxis(3)->GetNbins();
+ Int_t first3 = his1->GetAxis(3)->GetFirst();
+ Int_t last3 = his1->GetAxis(3)->GetLast();
+ //
+
+ for (Int_t ibin3=first3-1; ibin3<last3; ibin3+=1){ // axis 3 - local angle
+ his1->GetAxis(3)->SetRange(TMath::Max(ibin3-1,1),TMath::Min(ibin3+1,nbins3));
+ Double_t x3= his1->GetAxis(3)->GetBinCenter(ibin3);
+ if (ibin3<first3) {
+ his1->GetAxis(3)->SetRangeUser(-1,1);
+ x3=0;
+ }
+ THnSparse * his3= his1->Projection(4,idim); //projected histogram according selection 3
+ Int_t nbins2 = his3->GetAxis(2)->GetNbins();
+ Int_t first2 = his3->GetAxis(2)->GetFirst();
+ Int_t last2 = his3->GetAxis(2)->GetLast();
+ //
+ for (Int_t ibin2=first2; ibin2<last2; ibin2+=1){
+ his3->GetAxis(2)->SetRange(TMath::Max(ibin2-1,1),TMath::Min(ibin2+1,nbins2));
+ Double_t x2= his3->GetAxis(2)->GetBinCenter(ibin2);
+ TH1 * hisDelta = his3->Projection(0);
+ //
+ Double_t entries = hisDelta->GetEntries();
+ Double_t mean=0, rms=0;
+ if (entries>kMinEntries){
+ mean = hisDelta->GetMean();
+ rms = hisDelta->GetRMS();
+ }
+ (*pcstream)<<hname<<
+ "run="<<run<<
+ "bz="<<bz<<
+ "theta="<<x1<<
+ "phi="<<x2<<
+ "snp="<<x3<<
+ "entries="<<entries<<
+ "mean="<<mean<<
+ "rms="<<rms<<
+ "\n";
+ delete hisDelta;
+ printf("%f\t%f\t%f\t%f\t%f\n",x1,x3,x2, entries,mean);
+ }
+ delete his3;
+ }
+ delete his1;
+ }
+}
+
+
+
+
+
void AliTPCCorrection::StoreInOCDB(Int_t startRun, Int_t endRun, const char *comment){
//
// Store object in the OCDB
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff