-
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
#include <TTree.h>
#include <TClonesArray.h>
#include <TTreeStream.h>
+#include <TGeoMatrix.h>
+#include <TGeoManager.h>
#include "AliLog.h"
+#include "AliMathBase.h"
#include "AliESDEvent.h"
#include "AliGeomManager.h"
#include "AliRieman.h"
0.1112, 0.1112, 0.1112, 0.0786, 0.0786,
0.0786, 0.0786, 0.0579, 0.0579, 0.0474,
0.0474, 0.0408, 0.0335, 0.0335, 0.0335
-};
+};
+const Double_t AliTRDtrackerV1::fgkX0[kNPlanes] = {
+ 300.2, 312.8, 325.4, 338.0, 350.6, 363.2};
Int_t AliTRDtrackerV1::fgNTimeBins = 0;
-TTreeSRedirector *AliTRDtrackerV1::fgDebugStreamer = 0x0;
AliRieman* AliTRDtrackerV1::fgRieman = 0x0;
TLinearFitter* AliTRDtrackerV1::fgTiltedRieman = 0x0;
TLinearFitter* AliTRDtrackerV1::fgTiltedRiemanConstrained = 0x0;
AliTRDtrackerV1::AliTRDtrackerV1(AliTRDReconstructor *rec)
:AliTracker()
,fReconstructor(0x0)
- ,fGeom(new AliTRDgeometry())
+ ,fGeom(0x0)
,fClusters(0x0)
,fTracklets(0x0)
,fTracks(0x0)
//
// Default constructor.
//
+
+ SetReconstructor(rec); // initialize reconstructor
+
+ // initialize geometry
+ if(!AliGeomManager::GetGeometry()){
+ AliFatal("Could not get geometry.");
+ }
+ fGeom = new AliTRDgeometry();
+ fGeom->CreateClusterMatrixArray();
+ TGeoHMatrix *matrix = 0x0;
+ Double_t loc[] = {0., 0., 0.};
+ Double_t glb[] = {0., 0., 0.};
+ for(Int_t ily=kNPlanes; ily--;){
+ Int_t ism = 0;
+ while(!(matrix = fGeom->GetClusterMatrix(AliTRDgeometry::GetDetector(ily, 2, ism)))) ism++;
+ if(!matrix){
+ AliError(Form("Could not get transformation matrix for layer %d. Use default.", ily));
+ fR[ily] = fgkX0[ily];
+ continue;
+ }
+ matrix->LocalToMaster(loc, glb);
+ fR[ily] = glb[0]+ AliTRDgeometry::AnodePos()-.5*AliTRDgeometry::AmThick() - AliTRDgeometry::DrThick();
+ }
+
+ // initialize calibration values
AliTRDcalibDB *trd = 0x0;
if (!(trd = AliTRDcalibDB::Instance())) {
- AliFatal("Could not get calibration object");
+ AliFatal("Could not get calibration.");
}
-
if(!fgNTimeBins) fgNTimeBins = trd->GetNumberOfTimeBins();
+ // initialize cluster containers
for (Int_t isector = 0; isector < AliTRDgeometry::kNsector; isector++) new(&fTrSec[isector]) AliTRDtrackingSector(fGeom, isector);
- for(Int_t isl =0; isl<kNSeedPlanes; isl++) fSeedTB[isl] = 0x0;
-
- // Initialize debug stream
- if(rec) SetReconstructor(rec);
+ // initialize arrays
+ memset(fTrackQuality, 0, kMaxTracksStack*sizeof(Double_t));
+ memset(fSeedLayer, 0, kMaxTracksStack*sizeof(Int_t));
+ memset(fSeedTB, 0, kNSeedPlanes*sizeof(AliTRDchamberTimeBin*));
}
//____________________________________________________________________
// Destructor
//
- if(fgDebugStreamer) delete fgDebugStreamer;
- if(fgRieman) delete fgRieman;
- if(fgTiltedRieman) delete fgTiltedRieman;
- if(fgTiltedRiemanConstrained) delete fgTiltedRiemanConstrained;
+ if(fgRieman) delete fgRieman; fgRieman = 0x0;
+ if(fgTiltedRieman) delete fgTiltedRieman; fgTiltedRieman = 0x0;
+ if(fgTiltedRiemanConstrained) delete fgTiltedRiemanConstrained; fgTiltedRiemanConstrained = 0x0;
for(Int_t isl =0; isl<kNSeedPlanes; isl++) if(fSeedTB[isl]) delete fSeedTB[isl];
if(fTracks) {fTracks->Delete(); delete fTracks;}
if(fTracklets) {fTracklets->Delete(); delete fTracklets;}
- if(fClusters) {fClusters->Delete(); delete fClusters;}
+ if(fClusters) {
+ fClusters->Delete(); delete fClusters;
+ }
if(fGeom) delete fGeom;
}
{
//AliInfo(Form("Asking for tracklet %d", index));
+ // reset position of the point before using it
+ p.SetXYZ(0., 0., 0.);
AliTRDseedV1 *tracklet = GetTracklet(index);
if (!tracklet) return kFALSE;
-
+
// get detector for this tracklet
- AliTRDcluster *cl = 0x0;
- Int_t ic = 0; do; while(!(cl = tracklet->GetClusters(ic++)));
- Int_t idet = cl->GetDetector();
-
+ Int_t det = tracklet->GetDetector();
+ Int_t sec = fGeom->GetSector(det);
+ Double_t alpha = (sec+.5)*AliTRDgeometry::GetAlpha(),
+ sinA = TMath::Sin(alpha),
+ cosA = TMath::Cos(alpha);
Double_t local[3];
- local[0] = tracklet->GetX0();
- local[1] = tracklet->GetYfit(0);
- local[2] = tracklet->GetZfit(0);
+ local[0] = tracklet->GetX();
+ local[1] = tracklet->GetY();
+ local[2] = tracklet->GetZ();
Double_t global[3];
- fGeom->RotateBack(idet, local, global);
- p.SetXYZ(global[0],global[1],global[2]);
-
+ fGeom->RotateBack(det, local, global);
+
+ Double_t cov2D[3]; Float_t cov[6];
+ tracklet->GetCovAt(local[0], cov2D);
+ cov[0] = cov2D[0]*sinA*sinA;
+ cov[1] =-cov2D[0]*sinA*cosA;
+ cov[2] =-cov2D[1]*sinA;
+ cov[3] = cov2D[0]*cosA*cosA;
+ cov[4] = cov2D[1]*cosA;
+ cov[5] = cov2D[2];
+ // store the global position of the tracklet and its covariance matrix in the track point
+ p.SetXYZ(global[0],global[1],global[2], cov);
// setting volume id
- AliGeomManager::ELayerID iLayer = AliGeomManager::kTRD1;
- switch (fGeom->GetLayer(idet)) {
- case 0:
- iLayer = AliGeomManager::kTRD1;
- break;
- case 1:
- iLayer = AliGeomManager::kTRD2;
- break;
- case 2:
- iLayer = AliGeomManager::kTRD3;
- break;
- case 3:
- iLayer = AliGeomManager::kTRD4;
- break;
- case 4:
- iLayer = AliGeomManager::kTRD5;
- break;
- case 5:
- iLayer = AliGeomManager::kTRD6;
- break;
- };
- Int_t modId = fGeom->GetSector(idet) * fGeom->Nstack() + fGeom->GetStack(idet);
+ AliGeomManager::ELayerID iLayer = AliGeomManager::ELayerID(AliGeomManager::kTRD1+fGeom->GetLayer(det));
+ Int_t modId = fGeom->GetSector(det) * AliTRDgeometry::kNstack + fGeom->GetStack(det);
UShort_t volid = AliGeomManager::LayerToVolUID(iLayer, modId);
p.SetVolumeID(volid);
//____________________________________________________________________
AliRieman* AliTRDtrackerV1::GetRiemanFitter()
{
- if(!fgRieman) fgRieman = new AliRieman(AliTRDtrackingChamber::kNTimeBins * AliTRDgeometry::kNlayer);
+ if(!fgRieman) fgRieman = new AliRieman(AliTRDseedV1::kNtb * AliTRDgeometry::kNlayer);
return fgRieman;
}
AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
if (!calibra) AliInfo("Could not get Calibra instance\n");
- Int_t found = 0; // number of tracks found
+ // Define scalers
+ Int_t nFound = 0, // number of tracks found
+ nSeeds = 0, // total number of ESD seeds
+ nTRDseeds= 0, // number of seeds in the TRD acceptance
+ nTPCseeds= 0; // number of TPC seeds
Float_t foundMin = 20.0;
Float_t *quality = 0x0;
Int_t *index = 0x0;
- Int_t nSeed = event->GetNumberOfTracks();
- if(nSeed){
- quality = new Float_t[nSeed];
- index = new Int_t[nSeed];
- for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) {
+ nSeeds = event->GetNumberOfTracks();
+ // Sort tracks according to quality
+ // (covariance in the yz plane)
+ if(nSeeds){
+ quality = new Float_t[nSeeds];
+ index = new Int_t[nSeeds];
+ for (Int_t iSeed = nSeeds; iSeed--;) {
AliESDtrack *seed = event->GetTrack(iSeed);
Double_t covariance[15];
seed->GetExternalCovariance(covariance);
quality[iSeed] = covariance[0] + covariance[2];
}
- // Sort tracks according to covariance of local Y and Z
- TMath::Sort(nSeed,quality,index,kFALSE);
+ TMath::Sort(nSeeds, quality, index,kFALSE);
}
- // Backpropagate all seeds
+ // Propagate all seeds
Int_t expectedClr;
AliTRDtrackV1 track;
- for (Int_t iSeed = 0; iSeed < nSeed; iSeed++) {
+ for (Int_t iSeed = 0; iSeed < nSeeds; iSeed++) {
// Get the seeds in sorted sequence
AliESDtrack *seed = event->GetTrack(index[iSeed]);
+ Float_t p4 = seed->GetC(seed->GetBz());
// Check the seed status
ULong_t status = seed->GetStatus();
if ((status & AliESDtrack::kTPCout) == 0) continue;
if ((status & AliESDtrack::kTRDout) != 0) continue;
-
- // Do the back prolongation
+
+ // Propagate to the entrance in the TRD mother volume
new(&track) AliTRDtrackV1(*seed);
- //track->Print();
- //Int_t lbl = seed->GetLabel();
- //track.SetSeedLabel(lbl);
- seed->UpdateTrackParams(&track, AliESDtrack::kTRDbackup); // Make backup
- Float_t p4 = track.GetC();
- expectedClr = FollowBackProlongation(track);
+ if(AliTRDgeometry::GetXtrdBeg() > (fgkMaxStep + track.GetX()) && !PropagateToX(track, AliTRDgeometry::GetXtrdBeg(), fgkMaxStep)){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
+ }
+ if(!AdjustSector(&track)){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
+ }
+ if(TMath::Abs(track.GetSnp()) > fgkMaxSnp) {
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
+ }
+
+ nTPCseeds++;
- if (expectedClr<0) continue; // Back prolongation failed
+ // store track status at TRD entrance
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDbackup);
+
+ // prepare track and do propagation in the TRD
+ track.SetReconstructor(fReconstructor);
+ track.SetKink(Bool_t(seed->GetKinkIndex(0)));
+ expectedClr = FollowBackProlongation(track);
+ // check if track entered the TRD fiducial volume
+ if(track.GetTrackLow()){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDin);
+ nTRDseeds++;
+ }
+ // check if track was stopped in the TRD
+ if (expectedClr<0){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
+ }
if(expectedClr){
- found++;
+ nFound++;
// computes PID for track
track.CookPID();
// update calibration references using this track
if(calibra->GetHisto2d()) calibra->UpdateHistogramsV1(&track);
// save calibration object
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0){
+ AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(track);
+ calibTrack->SetOwner();
+ seed->AddCalibObject(calibTrack);
+ }
+ //update ESD track
if ((track.GetNumberOfClusters() > 15) && (track.GetNumberOfClusters() > 0.5*expectedClr)) {
seed->UpdateTrackParams(&track, AliESDtrack::kTRDout);
-
track.UpdateESDtrack(seed);
-
- // Add TRD track to ESDfriendTrack
- if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0 /*&& quality TODO*/){
- AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(track);
- calibTrack->SetOwner();
- seed->AddCalibObject(calibTrack);
- }
}
}
- if ((TMath::Abs(track.GetC() - p4) / TMath::Abs(p4) < 0.2) ||(track.Pt() > 0.8)) {
- //
+ if ((TMath::Abs(track.GetC(track.GetBz()) - p4) / TMath::Abs(p4) < 0.2) ||(track.Pt() > 0.8)) {
+
// Make backup for back propagation
- //
Int_t foundClr = track.GetNumberOfClusters();
if (foundClr >= foundMin) {
- //AliInfo(Form("Making backup track ncls [%d]...", foundClr));
- //track.CookdEdx();
- //track.CookdEdxTimBin(seed->GetID());
track.CookLabel(1. - fgkLabelFraction);
- if(track.GetBackupTrack()) UseClusters(track.GetBackupTrack());
-
+ //if(track.GetBackupTrack()) UseClusters(track.GetBackupTrack());
// Sign only gold tracks
if (track.GetChi2() / track.GetNumberOfClusters() < 4) {
- if ((seed->GetKinkIndex(0) == 0) && (track.Pt() < 1.5)) UseClusters(&track);
+ //if ((seed->GetKinkIndex(0) == 0) && (track.Pt() < 1.5)) UseClusters(&track);
}
Bool_t isGold = kFALSE;
isGold = kTRUE;
}
}
-
- //if ((track->StatusForTOF() > 0) && (track->GetNCross() == 0) && (Float_t(track->GetNumberOfClusters()) / Float_t(track->GetNExpected()) > 0.4)) {
- //seed->UpdateTrackParams(track->GetBackupTrack(), AliESDtrack::kTRDbackup);
- //}
}
}
- // Propagation to the TOF (I.Belikov)
- if (track.IsStopped() == kFALSE) {
- Double_t xtof = 371.0;
- Double_t xTOF0 = 370.0;
-
- Double_t c2 = track.GetSnp() + track.GetC() * (xtof - track.GetX());
- if (TMath::Abs(c2) >= 0.99) continue;
-
- if (!PropagateToX(track, xTOF0, fgkMaxStep)) continue;
-
- // Energy losses taken to the account - check one more time
- c2 = track.GetSnp() + track.GetC() * (xtof - track.GetX());
- if (TMath::Abs(c2) >= 0.99) continue;
-
- //if (!PropagateToX(*track,xTOF0,fgkMaxStep)) {
- // fHBackfit->Fill(7);
- //delete track;
- // continue;
- //}
-
- Double_t ymax = xtof * TMath::Tan(0.5 * AliTRDgeometry::GetAlpha());
- Double_t y;
- track.GetYAt(xtof,GetBz(),y);
- if (y > ymax) {
- if (!track.Rotate( AliTRDgeometry::GetAlpha())) continue;
- }else if (y < -ymax) {
- if (!track.Rotate(-AliTRDgeometry::GetAlpha())) continue;
+ // Propagation to the TOF
+ if(!(seed->GetStatus()&AliESDtrack::kTRDStop)) {
+ Int_t sm = track.GetSector();
+ // default value in case we have problems with the geometry.
+ Double_t xtof = 371.;
+ //Calculate radial position of the beginning of the TOF
+ //mother volume. In order to avoid mixing of the TRD
+ //and TOF modules some hard values are needed. This are:
+ //1. The path to the TOF module.
+ //2. The width of the TOF (29.05 cm)
+ //(with the help of Annalisa de Caro Mar-17-2009)
+ if(gGeoManager){
+ gGeoManager->cd(Form("/ALIC_1/B077_1/BSEGMO%d_1/BTOF%d_1", sm, sm));
+ TGeoHMatrix *m = 0x0;
+ Double_t loc[]={0., 0., -.5*29.05}, glob[3];
+
+ if((m=gGeoManager->GetCurrentMatrix())){
+ m->LocalToMaster(loc, glob);
+ xtof = TMath::Sqrt(glob[0]*glob[0]+glob[1]*glob[1]);
+ }
}
-
- if (track.PropagateTo(xtof)) {
- seed->UpdateTrackParams(&track, AliESDtrack::kTRDout);
- track.UpdateESDtrack(seed);
+ if(xtof > (fgkMaxStep + track.GetX()) && !PropagateToX(track, xtof, fgkMaxStep)){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
}
- } else {
- if ((track.GetNumberOfClusters() > 15) && (track.GetNumberOfClusters() > 0.5*expectedClr)) {
- seed->UpdateTrackParams(&track, AliESDtrack::kTRDout);
-
- track.UpdateESDtrack(seed);
+ if(!AdjustSector(&track)){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
}
+ if(TMath::Abs(track.GetSnp()) > fgkMaxSnp){
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDStop);
+ continue;
+ }
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDout);
+ // TODO obsolete - delete
+ seed->SetTRDQuality(track.StatusForTOF());
}
-
- seed->SetTRDQuality(track.StatusForTOF());
seed->SetTRDBudget(track.GetBudget(0));
}
if(index) delete [] index;
if(quality) delete [] quality;
- AliInfo(Form("Number of seeds: %d", nSeed));
- AliInfo(Form("Number of back propagated TRD tracks: %d", found));
+ AliInfo(Form("Number of TPC seeds: %d (%d)", nTRDseeds, nTPCseeds));
+ AliInfo(Form("Number of propagated TRD tracks: %d", nFound));
// run stand alone tracking
if (fReconstructor->IsSeeding()) Clusters2Tracks(event);
continue;
}
+ // reject tracks which failed propagation in the TRD or
+ // are produced by the TRD stand alone tracker
ULong_t status = seed->GetStatus();
- if((status & AliESDtrack::kTRDout) == 0) continue;
- if((status & AliESDtrack::kTRDin) != 0) continue;
+ if(!(status & AliESDtrack::kTRDout)) continue;
+ if(!(status & AliESDtrack::kTRDin)) continue;
nseed++;
track.ResetCovariance(50.0);
if(FollowProlongation(track)){
// Prolongate to TPC
if (PropagateToX(track, xTPC, fgkMaxStep)) { // -with update
- seed->UpdateTrackParams(&track, AliESDtrack::kTRDrefit);
- found++;
- kUPDATE = kTRUE;
+ seed->UpdateTrackParams(&track, AliESDtrack::kTRDrefit);
+ found++;
+ kUPDATE = kTRUE;
}
- }
+
+ // Update the friend track
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0){
+ TObject *o = 0x0; Int_t ic = 0;
+ AliTRDtrackV1 *calibTrack = 0x0;
+ while((o = seed->GetCalibObject(ic++))){
+ if(!(calibTrack = dynamic_cast<AliTRDtrackV1*>(o))) continue;
+ calibTrack->SetTrackHigh(track.GetTrackHigh());
+ }
+ }
+ }
// Prolongate to TPC without update
if(!kUPDATE) {
AliTRDtrackV1 tt(*seed);
- if (PropagateToX(tt, xTPC, fgkMaxStep)) seed->UpdateTrackParams(&tt, AliESDtrack::kTRDrefit);
+ if (PropagateToX(tt, xTPC, fgkMaxStep)) seed->UpdateTrackParams(&tt, AliESDtrack::kTRDbackup);
}
}
AliInfo(Form("Number of loaded seeds: %d",nseed));
// Debug level 2
//
+ Bool_t kStoreIn = kTRUE;
Int_t nClustersExpected = 0;
- Int_t lastplane = 5; //GetLastPlane(&t);
- for (Int_t iplane = lastplane; iplane >= 0; iplane--) {
+ for (Int_t iplane = kNPlanes; iplane--;) {
Int_t index = 0;
AliTRDseedV1 *tracklet = GetTracklet(&t, iplane, index);
if(!tracklet) continue;
if(!tracklet->IsOK()) AliWarning("tracklet not OK");
- Double_t x = tracklet->GetX0();
+ Double_t x = tracklet->GetX();//GetX0();
// reject tracklets which are not considered for inward refit
if(x > t.GetX()+fgkMaxStep) continue;
xyz1[1] = x * TMath::Sin(alpha) + y * TMath::Cos(alpha);
xyz1[2] = z;
- // Get material budget
- Double_t param[7];
- AliTracker::MeanMaterialBudget(xyz0, xyz1, param);
- Double_t xrho= param[0]*param[4];
- Double_t xx0 = param[1]; // Get mean propagation parameters
+ Double_t length = TMath::Sqrt(
+ (xyz0[0]-xyz1[0])*(xyz0[0]-xyz1[0]) +
+ (xyz0[1]-xyz1[1])*(xyz0[1]-xyz1[1]) +
+ (xyz0[2]-xyz1[2])*(xyz0[2]-xyz1[2])
+ );
+ if(length>0.){
+ // Get material budget
+ Double_t param[7];
+ if(AliTracker::MeanMaterialBudget(xyz0, xyz1, param)<=0.) break;
+ Double_t xrho= param[0]*param[4];
+ Double_t xx0 = param[1]; // Get mean propagation parameters
+
+ // Propagate and update
+ t.PropagateTo(x, xx0, xrho);
+ if (!AdjustSector(&t)) break;
+ }
+ if(kStoreIn){
+ t.SetTrackHigh();
+ kStoreIn = kFALSE;
+ }
- // Propagate and update
- t.PropagateTo(x, xx0, xrho);
- if (!AdjustSector(&t)) break;
-
- Double_t maxChi2 = t.GetPredictedChi2(tracklet);
- if (maxChi2 < 1e+10 && t.Update(tracklet, maxChi2)){
+ Double_t cov[3]; tracklet->GetCovAt(x, cov);
+ Double_t p[2] = { tracklet->GetY(), tracklet->GetZ()};
+ Double_t chi2 = ((AliExternalTrackParam)t).GetPredictedChi2(p, cov);
+ if (chi2 < 1e+10 && t.Update(p, cov, chi2)){
nClustersExpected += tracklet->GetN();
}
}
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
Int_t index;
- for(int iplane=0; iplane<6; iplane++){
+ for(int iplane=0; iplane<AliTRDgeometry::kNlayer; iplane++){
AliTRDseedV1 *tracklet = GetTracklet(&t, iplane, index);
if(!tracklet) continue;
t.SetTracklet(tracklet, index);
}
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
+ AliTRDtrackV1 track(t);
+ track.SetOwner();
cstreamer << "FollowProlongation"
<< "EventNumber=" << eventNumber
<< "ncl=" << nClustersExpected
- //<< "track.=" << &t
+ << "track.=" << &track
<< "\n";
}
// Debug level 2
//
- Int_t nClustersExpected = 0;
- Double_t clength = AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick();
+ Int_t n = 0;
+ Double_t driftLength = .5*AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick();
AliTRDtrackingChamber *chamber = 0x0;
AliTRDseedV1 tracklet, *ptrTracklet = 0x0;
+ // in case of stand alone tracking we store all the pointers to the tracklets in a temporary array
+ AliTRDseedV1 *tracklets[kNPlanes];
+ memset(tracklets, 0, sizeof(AliTRDseedV1 *) * kNPlanes);
+ for(Int_t ip = 0; ip < kNPlanes; ip++){
+ tracklets[ip] = t.GetTracklet(ip);
+ t.UnsetTracklet(ip);
+ }
+ Bool_t kStoreIn = kTRUE, kPropagateIn = kTRUE;
// Loop through the TRD layers
- for (Int_t ilayer = 0; ilayer < AliTRDgeometry::Nlayer(); ilayer++) {
- // BUILD TRACKLET IF NOT ALREADY BUILT
- Double_t x = 0., y, z, alpha;
- ptrTracklet = t.GetTracklet(ilayer);
- if(!ptrTracklet){
- ptrTracklet = new(&tracklet) AliTRDseedV1(ilayer);
- ptrTracklet->SetReconstructor(fReconstructor);
- alpha = t.GetAlpha();
- Int_t sector = Int_t(alpha/AliTRDgeometry::GetAlpha() + (alpha>0. ? 0 : AliTRDgeometry::kNsector));
+ TGeoHMatrix *matrix = 0x0;
+ Double_t x, y, z;
+ for (Int_t ily=0, sm=-1, stk=-1, det=-1; ily < AliTRDgeometry::kNlayer; ily++) {
+ // rough estimate of the entry point
+ if (!t.GetProlongation(fR[ily], y, z)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kProlongation);
+ break;
+ }
- if(!fTrSec[sector].GetNChambers()) continue;
-
- if((x = fTrSec[sector].GetX(ilayer)) < 1.) continue;
-
- if (!t.GetProlongation(x, y, z)) return -nClustersExpected;
- Int_t stack = fGeom->GetStack(z, ilayer);
- Int_t nCandidates = stack >= 0 ? 1 : 2;
- z -= stack >= 0 ? 0. : 4.;
-
- for(int icham=0; icham<nCandidates; icham++, z+=8){
- if((stack = fGeom->GetStack(z, ilayer)) < 0) continue;
-
- if(!(chamber = fTrSec[sector].GetChamber(stack, ilayer))) continue;
-
- if(chamber->GetNClusters() < fgNTimeBins*fReconstructor->GetRecoParam() ->GetFindableClusters()) continue;
-
- x = chamber->GetX();
-
- AliTRDpadPlane *pp = fGeom->GetPadPlane(ilayer, stack);
- tracklet.SetTilt(TMath::Tan(TMath::DegToRad()*pp->GetTiltingAngle()));
- tracklet.SetPadLength(pp->GetLengthIPad());
- tracklet.SetPlane(ilayer);
- tracklet.SetX0(x);
- if(!tracklet.Init(&t)){
- t.SetStopped(kTRUE);
- return nClustersExpected;
- }
- if(!tracklet.AttachClustersIter(chamber, 1000.)) continue;
- tracklet.Init(&t);
-
- if(tracklet.GetN() < fgNTimeBins*fReconstructor->GetRecoParam() ->GetFindableClusters()) continue;
+ // find sector / stack / detector
+ sm = t.GetSector();
+ // TODO cross check with y value !
+ stk = fGeom->GetStack(z, ily);
+ det = stk>=0 ? AliTRDgeometry::GetDetector(ily, stk, sm) : -1;
+ matrix = det>=0 ? fGeom->GetClusterMatrix(det) : 0x0;
+
+ // check if supermodule/chamber is installed
+ if( !fGeom->GetSMstatus(sm) ||
+ stk<0. ||
+ fGeom->IsHole(ily, stk, sm) ||
+ !matrix ){
+ // propagate to the default radial position
+ if(fR[ily] > (fgkMaxStep + t.GetX()) && !PropagateToX(t, fR[ily], fgkMaxStep)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kPropagation);
+ break;
+ }
+ if(!AdjustSector(&t)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kAdjustSector);
+ break;
+ }
+ if(TMath::Abs(t.GetSnp()) > fgkMaxSnp){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kSnp);
+ break;
+ }
+ t.SetStatus(AliTRDtrackV1::kGeometry, ily);
+ continue;
+ }
+
+ // retrieve rotation matrix for the current chamber
+ Double_t loc[] = {AliTRDgeometry::AnodePos()- driftLength, 0., 0.};
+ Double_t glb[] = {0., 0., 0.};
+ matrix->LocalToMaster(loc, glb);
+
+ // Propagate to the radial distance of the current layer
+ x = glb[0] - fgkMaxStep;
+ if(x > (fgkMaxStep + t.GetX()) && !PropagateToX(t, x, fgkMaxStep)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kPropagation);
+ break;
+ }
+ if(!AdjustSector(&t)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kAdjustSector);
+ break;
+ }
+ if(TMath::Abs(t.GetSnp()) > fgkMaxSnp) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kSnp);
+ break;
+ }
+ Bool_t RECALCULATE = kFALSE;
+ if(sm != t.GetSector()){
+ sm = t.GetSector();
+ RECALCULATE = kTRUE;
+ }
+ if(stk != fGeom->GetStack(z, ily)){
+ stk = fGeom->GetStack(z, ily);
+ RECALCULATE = kTRUE;
+ }
+ if(RECALCULATE){
+ det = AliTRDgeometry::GetDetector(ily, stk, sm);
+ if(!(matrix = fGeom->GetClusterMatrix(det))){
+ t.SetStatus(AliTRDtrackV1::kGeometry, ily);
+ continue;
+ }
+ matrix->LocalToMaster(loc, glb);
+ x = glb[0] - fgkMaxStep;
+ }
+
+ // check if track is well inside fiducial volume
+ if (!t.GetProlongation(x+fgkMaxStep, y, z)) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kProlongation);
+ break;
+ }
+ if(fGeom->IsOnBoundary(det, y, z, .5)){
+ t.SetStatus(AliTRDtrackV1::kBoundary, ily);
+ continue;
+ }
+ // mark track as entering the FIDUCIAL volume of TRD
+ if(kStoreIn){
+ t.SetTrackLow();
+ kStoreIn = kFALSE;
+ }
+
+ ptrTracklet = tracklets[ily];
+ if(!ptrTracklet){ // BUILD TRACKLET
+ // check data in supermodule
+ if(!fTrSec[sm].GetNChambers()){
+ t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+ continue;
+ }
+ if(fTrSec[sm].GetX(ily) < 1.){
+ t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+ continue;
+ }
+ // check data in chamber
+ if(!(chamber = fTrSec[sm].GetChamber(stk, ily))){
+ t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+ continue;
+ }
+ if(chamber->GetNClusters() < fgNTimeBins*fReconstructor->GetRecoParam() ->GetFindableClusters()){
+ t.SetStatus(AliTRDtrackV1::kNoClusters, ily);
+ continue;
+ }
+ // build tracklet
+ ptrTracklet = new(&tracklet) AliTRDseedV1(det);
+ ptrTracklet->SetReconstructor(fReconstructor);
+ ptrTracklet->SetKink(t.IsKink());
+ ptrTracklet->SetPadPlane(fGeom->GetPadPlane(ily, stk));
+ ptrTracklet->SetX0(glb[0]+driftLength);
+ if(!tracklet.Init(&t)){
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kTrackletInit);
break;
}
+ if(!tracklet.AttachClusters(chamber, kTRUE)){
+ t.SetStatus(AliTRDtrackV1::kNoAttach, ily);
+ continue;
+ }
+ if(tracklet.GetN() < fgNTimeBins*fReconstructor->GetRecoParam() ->GetFindableClusters()){
+ t.SetStatus(AliTRDtrackV1::kNoClustersTracklet, ily);
+ continue;
+ }
+ ptrTracklet->UpdateUsed();
}
- if(!ptrTracklet->IsOK()){
- if(x < 1.) continue; //temporary
- if(!PropagateToX(t, x-fgkMaxStep, fgkMaxStep)) return -nClustersExpected;
- if(!AdjustSector(&t)) return -nClustersExpected;
- if(TMath::Abs(t.GetSnp()) > fgkMaxSnp) return -nClustersExpected;
+
+ // propagate track to the radial position of the tracklet
+ ptrTracklet->UseClusters(); // TODO ? do we need this here ?
+ // fit tracklet no tilt correction
+ if(!ptrTracklet->Fit(kFALSE)){
+ t.SetStatus(AliTRDtrackV1::kNoFit, ily);
continue;
+ }
+ x = ptrTracklet->GetX(); //GetX0();
+ if(x > (fgkMaxStep + t.GetX()) && !PropagateToX(t, x, fgkMaxStep)) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kPropagation);
+ break;
+ }
+ if(!AdjustSector(&t)) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kAdjustSector);
+ break;
+ }
+ if(TMath::Abs(t.GetSnp()) > fgkMaxSnp) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kSnp);
+ break;
}
-
- // Propagate closer to the current chamber if neccessary
- x -= clength;
- if (x > (fgkMaxStep + t.GetX()) && !PropagateToX(t, x-fgkMaxStep, fgkMaxStep)) return -nClustersExpected;
- if (!AdjustSector(&t)) return -nClustersExpected;
- if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) return -nClustersExpected;
-
- // load tracklet to the tracker and the track
- ptrTracklet = SetTracklet(ptrTracklet);
- t.SetTracklet(ptrTracklet, fTracklets->GetEntriesFast()-1);
-
- // Calculate the mean material budget along the path inside the chamber
- //Calculate global entry and exit positions of the track in chamber (only track prolongation)
- Double_t xyz0[3]; // entry point
- t.GetXYZ(xyz0);
- alpha = t.GetAlpha();
- x = ptrTracklet->GetX0();
- if (!t.GetProlongation(x, y, z)) return -nClustersExpected;
- Double_t xyz1[3]; // exit point
- xyz1[0] = x * TMath::Cos(alpha) - y * TMath::Sin(alpha);
- xyz1[1] = +x * TMath::Sin(alpha) + y * TMath::Cos(alpha);
- xyz1[2] = z;
- Double_t param[7];
- AliTracker::MeanMaterialBudget(xyz0, xyz1, param);
- // The mean propagation parameters
- Double_t xrho = param[0]*param[4]; // density*length
- Double_t xx0 = param[1]; // radiation length
-
- // Propagate and update track
- if (!t.PropagateTo(x, xx0, xrho)) return -nClustersExpected;
- if (!AdjustSector(&t)) return -nClustersExpected;
- Double_t maxChi2 = t.GetPredictedChi2(ptrTracklet);
- if (!t.Update(ptrTracklet, maxChi2)) return -nClustersExpected;
- if (maxChi2<1e+10) {
- nClustersExpected += ptrTracklet->GetN();
- //t.SetTracklet(&tracklet, index);
+ if(kPropagateIn){
+ t.SetTrackLow();
+ kPropagateIn = kFALSE;
+ }
+
+ // update Kalman with the TRD measurement
+ Double_t cov[3]; ptrTracklet->GetCovAt(x, cov);
+ Double_t p[2] = { ptrTracklet->GetY(), ptrTracklet->GetZ()};
+ Double_t chi2 = ((AliExternalTrackParam)t).GetPredictedChi2(p, cov);
+ if(chi2>1e+10){ // TODO
+ t.SetStatus(AliTRDtrackV1::kChi2, ily);
+ continue;
}
+ if(!t.Update(p, cov, chi2)) {
+ n=-1;
+ t.SetStatus(AliTRDtrackV1::kUpdate);
+ break;
+ }
+ // fill residuals ?!
+ AliTracker::FillResiduals(&t, p, cov, ptrTracklet->GetVolumeId());
+
+
+ // load tracklet to the tracker
+ ptrTracklet->Update(&t);
+ ptrTracklet = SetTracklet(ptrTracklet);
+ t.SetTracklet(ptrTracklet, fTracklets->GetEntriesFast()-1);
+ n += ptrTracklet->GetN();
+
// Reset material budget if 2 consecutive gold
- if(ilayer>0 && t.GetTracklet(ilayer-1) && ptrTracklet->GetN() + t.GetTracklet(ilayer-1)->GetN() > 20) t.SetBudget(2, 0.);
+// if(ilayer>0 && t.GetTracklet(ilayer-1) && ptrTracklet->GetN() + t.GetTracklet(ilayer-1)->GetN() > 20) t.SetBudget(2, 0.);
// Make backup of the track until is gold
// TO DO update quality check of the track.
// consider comparison with fTimeBinsRange
Float_t ratio0 = ptrTracklet->GetN() / Float_t(fgNTimeBins);
//Float_t ratio1 = Float_t(t.GetNumberOfClusters()+1) / Float_t(t.GetNExpected()+1);
- //printf("tracklet.GetChi2() %f [< 18.0]\n", tracklet.GetChi2());
- //printf("ratio0 %f [> 0.8]\n", ratio0);
- //printf("ratio1 %f [> 0.6]\n", ratio1);
- //printf("ratio0+ratio1 %f [> 1.5]\n", ratio0+ratio1);
- //printf("t.GetNCross() %d [== 0]\n", t.GetNCross());
- //printf("TMath::Abs(t.GetSnp()) %f [< 0.85]\n", TMath::Abs(t.GetSnp()));
- //printf("t.GetNumberOfClusters() %d [> 20]\n", t.GetNumberOfClusters());
- if (//(tracklet.GetChi2() < 18.0) && TO DO check with FindClusters and move it to AliTRDseed::Update
+ if( (chi2 < 18.0) &&
(ratio0 > 0.8) &&
//(ratio1 > 0.6) &&
//(ratio0+ratio1 > 1.5) &&
(t.GetNCross() == 0) &&
(TMath::Abs(t.GetSnp()) < 0.85) &&
- (t.GetNumberOfClusters() > 20)) t.MakeBackupTrack();
-
+ (t.GetNumberOfClusters() > 20)){
+ t.MakeBackupTrack();
+ }
} // end layers loop
+ //printf("clusters[%d] chi2[%f] x[%f] status[%d ", n, t.GetChi2(), t.GetX(), t.GetStatusTRD());
+ //for(int i=0; i<6; i++) printf("%d ", t.GetStatusTRD(i)); printf("]\n");
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
- //AliTRDtrackV1 *debugTrack = new AliTRDtrackV1(t);
- //debugTrack->SetOwner();
+ AliTRDtrackV1 track(t);
+ track.SetOwner();
cstreamer << "FollowBackProlongation"
- << "EventNumber=" << eventNumber
- << "ncl=" << nClustersExpected
- //<< "track.=" << debugTrack
+ << "EventNumber=" << eventNumber
+ << "ncl=" << n
+ << "track.=" << &track
<< "\n";
}
- return nClustersExpected;
+ return n;
}
//_________________________________________________________________________
}
for(Int_t il = 0; il < maxLayers; il++){
if(!tracklets[ppl[il]].IsOK()) continue;
- fitter->AddPoint(tracklets[ppl[il]].GetX0(), tracklets[ppl[il]].GetYfitR(0), tracklets[ppl[il]].GetZProb(),1,10);
+ fitter->AddPoint(tracklets[ppl[il]].GetX0(), tracklets[ppl[il]].GetYfit(0), tracklets[ppl[il]].GetZfit(0),1,10);
}
fitter->Update();
// Set the reference position of the fit and calculate the chi2 values
//
AliRieman *fitter = AliTRDtrackerV1::GetRiemanFitter();
fitter->Reset();
- for(Int_t i = 0; i < 4; i++)
- fitter->AddPoint(seedcl[i]->GetX(), seedcl[i]->GetY(), seedcl[i]->GetZ(), 1, 10);
+ for(Int_t i = 0; i < 4; i++){
+ fitter->AddPoint(seedcl[i]->GetX(), seedcl[i]->GetY(), seedcl[i]->GetZ(), 1., 10.);
+ }
fitter->Update();
Int_t nPoints = 0;
for(Int_t ilr = 0; ilr < AliTRDgeometry::kNlayer; ilr++){
if(!tracklets[ilr].IsOK()) continue;
- for(Int_t itb = 0; itb < fgNTimeBins; itb++){
+ for(Int_t itb = 0; itb < AliTRDseedV1::kNclusters; itb++){
if(!tracklets[ilr].IsUsable(itb)) continue;
cl = tracklets[ilr].GetClusters(itb);
x = cl->GetX();
uvt[0] = 2. * x * t;
uvt[1] = 2. * x * t * tilt ;
w = 2. * (y + tilt * (z - zVertex)) * t;
- error = 2. * 0.2 * t;
+ error = 2. * TMath::Sqrt(cl->GetSigmaY2()) * t;
fitter->AddPoint(uvt, w, error);
nPoints++;
}
Float_t chi2track = fitter->GetChisquare()/Double_t(nPoints);
for(Int_t ip = 0; ip < AliTRDtrackerV1::kNPlanes; ip++)
- tracklets[ip].SetCC(curvature);
+ tracklets[ip].SetC(curvature);
/* if(fReconstructor->GetStreamLevel() >= 5){
//Linear Model on z-direction
Float_t chi2Z = CalculateChi2Z(tracklets, zref, slope, xref);
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
- TTreeSRedirector &treeStreamer = *fgDebugStreamer;
+ TTreeSRedirector &treeStreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
treeStreamer << "FitTiltedRiemanConstraint"
<< "EventNumber=" << eventNumber
<< "CandidateNumber=" << candidateNumber
// Containers for Least-square fitter
for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
if(!tracklets[ipl].IsOK()) continue;
- for(Int_t itb = 0; itb < fgNTimeBins; itb++){
+ tilt = tracklets[ipl].GetTilt();
+ for(Int_t itb = 0; itb < AliTRDseedV1::kNclusters; itb++){
if(!(cl = tracklets[ipl].GetClusters(itb))) continue;
if (!tracklets[ipl].IsUsable(itb)) continue;
x = cl->GetX();
y = cl->GetY();
z = cl->GetZ();
- tilt = tracklets[ipl].GetTilt();
dx = x - xref;
// Transformation
t = 1./(x*x + y*y);
w = 2. * (y + tilt*z) * t;
// error definition changes for the different calls
we = 2. * t;
- we *= sigError ? tracklets[ipl].GetSigmaY() : 0.2;
+ we *= sigError ? TMath::Sqrt(cl->GetSigmaY2()) : 0.2;
fitter->AddPoint(uvt, w, we);
zfitter.AddPoint(&x, z, static_cast<Double_t>(TMath::Sqrt(cl->GetSigmaZ2())));
nPoints++;
for (Int_t iLayer = 0; iLayer < kNPlanes; iLayer++) {
if(!tracklets[iLayer].IsOK()) continue;
zref = offset + slope * (tracklets[iLayer].GetX0() - xref);
- if (TMath::Abs(tracklets[iLayer].GetZProb() - zref) > tracklets[iLayer].GetPadLength() * 0.5 + 1.0)
+ if (TMath::Abs(tracklets[iLayer].GetZfit(0) - zref) > tracklets[iLayer].GetPadLength() * 0.5 + 1.0)
acceptablez = kFALSE;
}
if (!acceptablez) {
}
/* if(fReconstructor->GetStreamLevel() >=5){
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
Double_t chi2z = CalculateChi2Z(tracklets, offset, slope, xref);
//____________________________________________________________________
-Double_t AliTRDtrackerV1::FitLine(AliTRDtrackV1 *track, AliTRDseedV1 *tracklets, Bool_t err, Int_t np, AliTrackPoint *points)
+Double_t AliTRDtrackerV1::FitLine(const AliTRDtrackV1 *track, AliTRDseedV1 *tracklets, Bool_t err, Int_t np, AliTrackPoint *points)
{
AliTRDLeastSquare yfitter, zfitter;
AliTRDcluster *cl = 0x0;
//_________________________________________________________________________
-Double_t AliTRDtrackerV1::FitRiemanTilt(AliTRDtrackV1 *track, AliTRDseedV1 *tracklets, Bool_t sigError, Int_t np, AliTrackPoint *points)
+Double_t AliTRDtrackerV1::FitRiemanTilt(const AliTRDtrackV1 *track, AliTRDseedV1 *tracklets, Bool_t sigError, Int_t np, AliTrackPoint *points)
{
//
// Performs a Riemann fit taking tilting pad correction into account
// Containers for Least-square fitter
for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
if(!tracklets[ipl].IsOK()) continue;
- for(Int_t itb = 0; itb < fgNTimeBins; itb++){
+ for(Int_t itb = 0; itb < AliTRDseedV1::kNclusters; itb++){
if(!(cl = tracklets[ipl].GetClusters(itb))) continue;
if (!tracklets[ipl].IsUsable(itb)) continue;
x = cl->GetX();
w = 2. * (y + tilt*z) * t;
// error definition changes for the different calls
we = 2. * t;
- we *= sigError ? tracklets[ipl].GetSigmaY() : 0.2;
+ we *= sigError ? TMath::Sqrt(cl->GetSigmaY2()) : 0.2;
fitter->AddPoint(uvt, w, we);
zfitter.AddPoint(&x, z, static_cast<Double_t>(TMath::Sqrt(cl->GetSigmaZ2())));
nPoints++;
for (Int_t iLayer = 0; iLayer < kNPlanes; iLayer++) {
if(!tracklets[iLayer].IsOK()) continue;
zref = z0 + dzdx * (tracklets[iLayer].GetX0() - xref);
- if (TMath::Abs(tracklets[iLayer].GetZProb() - zref) > tracklets[iLayer].GetPadLength() * 0.5 + 1.0)
+ if (TMath::Abs(tracklets[iLayer].GetZfit(0) - zref) > tracklets[iLayer].GetPadLength() * 0.5 + 1.0)
accept = kFALSE;
}
if (!accept) {
Double_t c = fitter->GetParameter(2);
Double_t y0 = 1. / a;
Double_t x0 = -b * y0;
- Double_t R = TMath::Sqrt(y0*y0 + x0*x0 - c*y0);
+ Double_t tmp = y0*y0 + x0*x0 - c*y0;
+ if(tmp<=0.) return 1.E10;
+ Double_t R = TMath::Sqrt(tmp);
Double_t C = 1.0 + b*b - c*a;
if (C > 0.0) C = a / TMath::Sqrt(C);
if(!track){
for(Int_t ip = 0; ip < kNPlanes; ip++) {
x = tracklets[ip].GetX0();
- Double_t tmp = TMath::Sqrt(R*R-(x-x0)*(x-x0));
+ tmp = R*R-(x-x0)*(x-x0);
+ if(tmp <= 0.) continue;
+ tmp = TMath::Sqrt(tmp);
// y: R^2 = (x - x0)^2 + (y - y0)^2
// => y = y0 +/- Sqrt(R^2 - (x - x0)^2)
tracklets[ip].SetChi2(chi2);
}
}
-
//update track points array
if(np && points){
Float_t xyz[3];
for(int ip=0; ip<np; ip++){
points[ip].GetXYZ(xyz);
- xyz[1] = y0 - (y0>0.?1.:-1)*TMath::Sqrt(R*R-(xyz[0]-x0)*(xyz[0]-x0));
+ xyz[1] = TMath::Abs(xyz[0] - x0) > R ? 100. : y0 - (y0>0.?1.:-1.)*TMath::Sqrt((R-(xyz[0]-x0))*(R+(xyz[0]-x0)));
xyz[2] = z0 + dzdx * (xyz[0] - xref);
points[ip].SetXYZ(xyz);
}
}
-/* if(fReconstructor->GetStreamLevel() >=5){
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
- Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
- Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
- Double_t chi2z = CalculateChi2Z(tracklets, z0, dzdx, xref);
- cstreamer << "FitRiemanTilt"
- << "EventNumber=" << eventNumber
- << "CandidateNumber=" << candidateNumber
- << "xref=" << xref
- << "Chi2Z=" << chi2z
- << "\n";
- }*/
return chi2;
}
//
// Author : A.Bercuci@gsi.de
- //printf("Start track @ x[%f]\n", track->GetX());
+ // printf("Start track @ x[%f]\n", track->GetX());
//prepare marker points along the track
Int_t ip = np ? 0 : 1;
while(ip < np){
//don't do anything if next marker is after next update point.
if((up?-1:1) * (points[ip].GetX() - x) - fgkMaxStep < 0) break;
-
- //printf("Propagate to x[%d] = %f\n", ip, points[ip].GetX());
-
if(((up?-1:1) * (points[ip].GetX() - track->GetX()) < 0) && !PropagateToX(*track, points[ip].GetX(), fgkMaxStep)) return -1.;
Double_t xyz[3]; // should also get the covariance
- track->GetXYZ(xyz); points[ip].SetXYZ(xyz[0], xyz[1], xyz[2]);
+ track->GetXYZ(xyz);
+ track->Global2LocalPosition(xyz, track->GetAlpha());
+ points[ip].SetXYZ(xyz[0], xyz[1], xyz[2]);
ip++;
}
- //printf("plane[%d] tracklet[%p] x[%f]\n", iplane, ptrTracklet, x);
+ // printf("plane[%d] tracklet[%p] x[%f]\n", iplane, ptrTracklet, x);
- //Propagate closer to the next update point
+ // Propagate closer to the next update point
if(((up?-1:1) * (x - track->GetX()) + fgkMaxStep < 0) && !PropagateToX(*track, x + (up?-1:1)*fgkMaxStep, fgkMaxStep)) return -1.;
if(!AdjustSector(track)) return -1;
xyz1[0] = x * TMath::Cos(alpha) - y * TMath::Sin(alpha);
xyz1[1] = +x * TMath::Sin(alpha) + y * TMath::Cos(alpha);
xyz1[2] = z;
+ if((xyz0[0] - xyz1[9] < 1e-3) && (xyz0[0] - xyz1[9] < 1e-3)) continue; // check wheter we are at the same global x position
Double_t param[7];
- AliTracker::MeanMaterialBudget(xyz0, xyz1, param);
+ if(AliTracker::MeanMaterialBudget(xyz0, xyz1, param) <=0.) break;
Double_t xrho = param[0]*param[4]; // density*length
Double_t xx0 = param[1]; // radiation length
if (!AdjustSector(track)) break;
//Update track
- Double_t chi2 = track->GetPredictedChi2(ptrTracklet);
- if(chi2<1e+10) track->Update(ptrTracklet, chi2);
-
+ Double_t cov[3]; ptrTracklet->GetCovAt(x, cov);
+ Double_t p[2] = { ptrTracklet->GetY(), ptrTracklet->GetZ()};
+ Double_t chi2 = ((AliExternalTrackParam*)track)->GetPredictedChi2(p, cov);
+ if(chi2<1e+10) track->Update(p, cov, chi2);
if(!up) continue;
//Reset material budget if 2 consecutive gold
if(((up?-1:1) * (points[ip].GetX() - track->GetX()) < 0) && !PropagateToX(*track, points[ip].GetX(), fgkMaxStep)) return -1.;
Double_t xyz[3]; // should also get the covariance
- track->GetXYZ(xyz); points[ip].SetXYZ(xyz[0], xyz[1], xyz[2]);
+ track->GetXYZ(xyz);
+ track->Global2LocalPosition(xyz, track->GetAlpha());
+ points[ip].SetXYZ(xyz[0], xyz[1], xyz[2]);
ip++;
}
for (Int_t iLayer = 0; iLayer < AliTRDgeometry::kNlayer; iLayer++) {
if(!tracklets[iLayer].IsOK()) continue;
Double_t z = offset + slope * (tracklets[iLayer].GetX0() - xref);
- chi2Z += TMath::Abs(tracklets[iLayer].GetMeanz() - z);
+ chi2Z += TMath::Abs(tracklets[iLayer].GetZfit(0) - z);
nLayers++;
}
chi2Z /= TMath::Max((nLayers - 3.0),1.0);
// Calculate the mean material budget between start and
// end point of this prolongation step
- AliTracker::MeanMaterialBudget(xyz0, xyz1, param);
+ if(AliTracker::MeanMaterialBudget(xyz0, xyz1, param)<=0.) return 0;
// Propagate the track to the X-position after the next step
- if (!t.PropagateTo(x,param[1],param[0]*param[4])) {
- return 0;
- }
+ if (!t.PropagateTo(x, param[1], param[0]*param[4])) return 0;
// Rotate the track if necessary
AdjustSector(&t);
branch->SetAddress(&clusterArray);
if(!fClusters){
- array = new TClonesArray("AliTRDcluster", nsize);
+ Float_t nclusters = fReconstructor->GetRecoParam()->GetNClusters();
+ if(fReconstructor->IsHLT()) nclusters /= AliTRDgeometry::kNsector;
+ array = new TClonesArray("AliTRDcluster", Int_t(nclusters));
array->SetOwner(kTRUE);
}
// Fills clusters into TRD tracking sectors
//
- if(!(fClusters = AliTRDReconstructor::GetClusters())){
+ if(!fReconstructor->IsWritingClusters()){
+ fClusters = AliTRDReconstructor::GetClusters();
+ } else {
if (ReadClusters(fClusters, cTree)) {
AliError("Problem with reading the clusters !");
return 1;
}
SetClustersOwner();
- if(!fClusters->GetEntriesFast()){
+ if(!fClusters || !fClusters->GetEntriesFast()){
AliInfo("No TRD clusters");
return 1;
}
fTrSec[sector].GetChamber(stack, layer, kTRUE)->InsertCluster(c, icl);
}
-
+
+ const AliTRDCalDet *cal = AliTRDcalibDB::Instance()->GetT0Det();
for(int isector =0; isector<AliTRDgeometry::kNsector; isector++){
if(!fTrSec[isector].GetNChambers()) continue;
- fTrSec[isector].Init(fReconstructor);
+ fTrSec[isector].Init(fReconstructor, cal);
}
return nin;
if(fTracks) fTracks->Delete();
if(fTracklets) fTracklets->Delete();
- if(fClusters && IsClustersOwner()) fClusters->Delete();
+ if(fClusters){
+ if(IsClustersOwner()) fClusters->Delete();
+
+ // save clusters array in the reconstructor for further use.
+ if(!fReconstructor->IsWritingClusters()){
+ AliTRDReconstructor::SetClusters(fClusters);
+ SetClustersOwner(kFALSE);
+ } else AliTRDReconstructor::SetClusters(0x0);
+ }
for (int i = 0; i < AliTRDgeometry::kNsector; i++) fTrSec[i].Clear();
AliTRDtrackerDebug::SetEventNumber(AliTRDtrackerDebug::GetEventNumber() + 1);
}
+// //____________________________________________________________________
+// void AliTRDtrackerV1::UseClusters(const AliKalmanTrack *t, Int_t) const
+// {
+// const AliTRDtrackV1 *track = dynamic_cast<const AliTRDtrackV1*>(t);
+// if(!track) return;
+//
+// AliTRDseedV1 *tracklet = 0x0;
+// for(Int_t ily=AliTRDgeometry::kNlayer; ily--;){
+// if(!(tracklet = track->GetTracklet(ily))) continue;
+// AliTRDcluster *c = 0x0;
+// for(Int_t ic=AliTRDseed::kNclusters; ic--;){
+// if(!(c=tracklet->GetClusters(ic))) continue;
+// c->Use();
+// }
+// }
+// }
+//
+
//_____________________________________________________________________________
Bool_t AliTRDtrackerV1::AdjustSector(AliTRDtrackV1 *track)
{
Double_t alpha = AliTRDgeometry::GetAlpha();
Double_t y = track->GetY();
Double_t ymax = track->GetX()*TMath::Tan(0.5*alpha);
-
+
if (y > ymax) {
if (!track->Rotate( alpha)) {
return kFALSE;
// 8. Build ESD track and register it to the output list
//
+ const AliTRDCalDet *cal = AliTRDcalibDB::Instance()->GetT0Det();
AliTRDtrackingChamber *chamber = 0x0;
+ AliTRDtrackingChamber **ci = 0x0;
AliTRDseedV1 sseed[kMaxTracksStack*6]; // to be initialized
Int_t pars[4]; // MakeSeeds parameters
//Double_t shift = .5 * alpha;
Int_t configs[kNConfigs];
+ // Purge used clusters from the containers
+ ci = &stack[0];
+ for(Int_t ic = kNPlanes; ic--; ci++){
+ if(!(*ci)) continue;
+ (*ci)->Update();
+ }
+
// Build initial seeding configurations
Double_t quality = BuildSeedingConfigs(stack, configs);
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 10){
AliInfo(Form("Plane config %d %d %d Quality %f"
, configs[0], configs[1], configs[2], quality));
}
+
// Initialize contors
Int_t ntracks, // number of TRD track candidates
ntracks1, // number of registered TRD tracks/iter
ntracks2 = 0; // number of all registered TRD tracks in stack
fSieveSeeding = 0;
+
+ // Get stack index
+ Int_t ic = 0; ci = &stack[0];
+ while(ic<kNPlanes && !(*ci)){ic++; ci++;}
+ if(!(*ci)) return ntracks2;
+ Int_t istack = fGeom->GetStack((*ci)->GetDetector());
+
do{
// Loop over seeding configurations
ntracks = 0; ntracks1 = 0;
for (Int_t iconf = 0; iconf<3; iconf++) {
pars[0] = configs[iconf];
pars[1] = ntracks;
+ pars[2] = istack;
ntracks = MakeSeeds(stack, &sseed[6*ntracks], pars);
if(ntracks == kMaxTracksStack) break;
}
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1) AliInfo(Form("Candidate TRD tracks %d in iteration %d.", ntracks, fSieveSeeding));
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 10) AliInfo(Form("Candidate TRD tracks %d in iteration %d.", ntracks, fSieveSeeding));
if(!ntracks) break;
// Calculate track parameters from tracklets seeds
- Int_t labelsall[1000];
- Int_t nlabelsall = 0;
- Int_t naccepted = 0;
Int_t ncl = 0;
Int_t nused = 0;
Int_t nlayers = 0;
for (Int_t jLayer = 0; jLayer < kNPlanes; jLayer++) {
Int_t jseed = kNPlanes*trackIndex+jLayer;
if(!sseed[jseed].IsOK()) continue;
- if (TMath::Abs(sseed[jseed].GetYref(0) / sseed[jseed].GetX0()) < 0.15) findable++;
-
+ if (TMath::Abs(sseed[jseed].GetYref(0) / sseed[jseed].GetX0()) < 0.158) findable++;
+ // TODO here we get a sig fault which should never happen !
sseed[jseed].UpdateUsed();
ncl += sseed[jseed].GetN2();
nused += sseed[jseed].GetNUsed();
nlayers++;
-
-// // Cooking label
-// for (Int_t itime = 0; itime < fgNTimeBins; itime++) {
-// if(!sseed[jseed].IsUsable(itime)) continue;
-// naccepted++;
-// Int_t tindex = 0, ilab = 0;
-// while(ilab<3 && (tindex = sseed[jseed].GetClusters(itime)->GetLabel(ilab)) >= 0){
-// labelsall[nlabelsall++] = tindex;
-// ilab++;
-// }
-// }
}
- // Filter duplicated tracks
- if (nused > 30){
- //printf("Skip %d nused %d\n", trackIndex, nused);
- fakeTrack[trackIndex] = kTRUE;
- continue;
- }
- if (Float_t(nused)/ncl >= .25){
- //printf("Skip %d nused/ncl >= .25\n", trackIndex);
- fakeTrack[trackIndex] = kTRUE;
- continue;
- }
-
- // Classify tracks
- Bool_t skip = kFALSE;
- switch(jSieve){
- case 0:
- if(nlayers < 6) {skip = kTRUE; break;}
- if(TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -5.){skip = kTRUE; break;}
- break;
-
- case 1:
- if(nlayers < findable){skip = kTRUE; break;}
- if(TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -4.){skip = kTRUE; break;}
- break;
-
- case 2:
- if ((nlayers == findable) || (nlayers == 6)) { skip = kTRUE; break;}
- if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -6.0){skip = kTRUE; break;}
- break;
-
- case 3:
- if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -5.){skip = kTRUE; break;}
- break;
-
- case 4:
- if (nlayers == 3){skip = kTRUE; break;}
- //if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) - nused/(nlayers-3.0) < -15.0){skip = kTRUE; break;}
- break;
- }
- if(skip){
- candidates++;
- //printf("REJECTED : %d [%d] nlayers %d trackQuality = %e nused %d\n", itrack, trackIndex, nlayers, fTrackQuality[trackIndex], nused);
- continue;
- }
- signedTrack[trackIndex] = kTRUE;
-
-
- // Sign clusters
- AliTRDcluster *cl = 0x0; Int_t clusterIndex = -1;
- for (Int_t jLayer = 0; jLayer < kNPlanes; jLayer++) {
- Int_t jseed = kNPlanes*trackIndex+jLayer;
- if(!sseed[jseed].IsOK()) continue;
- if(TMath::Abs(sseed[jseed].GetYfit(1) - sseed[jseed].GetYfit(1)) >= .2) continue; // check this condition with Marian
- sseed[jseed].UseClusters();
- if(!cl){
- Int_t ic = 0;
- while(!(cl = sseed[jseed].GetClusters(ic))) ic++;
- clusterIndex = sseed[jseed].GetIndexes(ic);
- }
- }
- if(!cl) continue;
-
-
- // Build track parameters
- AliTRDseedV1 *lseed =&sseed[trackIndex*6];
-/* Int_t idx = 0;
- while(idx<3 && !lseed->IsOK()) {
- idx++;
- lseed++;
- }*/
- Double_t x = lseed->GetX0();// - 3.5;
- trackParams[0] = x; //NEW AB
- trackParams[1] = lseed->GetYref(0); // lseed->GetYat(x);
- trackParams[2] = lseed->GetZref(0); // lseed->GetZat(x);
- trackParams[3] = TMath::Sin(TMath::ATan(lseed->GetYref(1)));
- trackParams[4] = lseed->GetZref(1) / TMath::Sqrt(1. + lseed->GetYref(1) * lseed->GetYref(1));
- trackParams[5] = lseed->GetC();
- Int_t ich = 0; while(!(chamber = stack[ich])) ich++;
- trackParams[6] = fGeom->GetSector(chamber->GetDetector());/* *alpha+shift; // Supermodule*/
+ // Filter duplicated tracks
+ if (nused > 30){
+ //printf("Skip %d nused %d\n", trackIndex, nused);
+ fakeTrack[trackIndex] = kTRUE;
+ continue;
+ }
+ if (Float_t(nused)/ncl >= .25){
+ //printf("Skip %d nused/ncl >= .25\n", trackIndex);
+ fakeTrack[trackIndex] = kTRUE;
+ continue;
+ }
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
- AliInfo(Form("Track %d [%d] nlayers %d trackQuality = %e nused %d, yref = %3.3f", itrack, trackIndex, nlayers, fTrackQuality[trackIndex], nused, trackParams[1]));
-
- Int_t nclusters = 0;
- AliTRDseedV1 *dseed[6];
-
- // Build track label - what happens if measured data ???
- Int_t labels[1000];
- Int_t outlab[1000];
- Int_t nlab = 0;
- for (Int_t iLayer = 0; iLayer < kNPlanes; iLayer++) {
- Int_t jseed = kNPlanes*trackIndex+iLayer;
- dseed[iLayer] = new AliTRDseedV1(sseed[jseed]);
- dseed[iLayer]->SetOwner();
- nclusters += sseed[jseed].GetN2();
- if(!sseed[jseed].IsOK()) continue;
- for(int ilab=0; ilab<2; ilab++){
- if(sseed[jseed].GetLabels(ilab) < 0) continue;
- labels[nlab] = sseed[jseed].GetLabels(ilab);
- nlab++;
- }
- }
- Freq(nlab,labels,outlab,kFALSE);
- Int_t label = outlab[0];
- Int_t frequency = outlab[1];
- Freq(nlabelsall,labelsall,outlab,kFALSE);
- Int_t label1 = outlab[0];
- Int_t label2 = outlab[2];
- Float_t fakeratio = (naccepted - outlab[1]) / Float_t(naccepted);
+ // Classify tracks
+ Bool_t skip = kFALSE;
+ switch(jSieve){
+ case 0:
+ if(nlayers < 6) {skip = kTRUE; break;}
+ if(TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -5.){skip = kTRUE; break;}
+ break;
+
+ case 1:
+ if(nlayers < findable){skip = kTRUE; break;}
+ if(TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -4.){skip = kTRUE; break;}
+ break;
+
+ case 2:
+ if ((nlayers == findable) || (nlayers == 6)) { skip = kTRUE; break;}
+ if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -6.0){skip = kTRUE; break;}
+ break;
+
+ case 3:
+ if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) < -5.){skip = kTRUE; break;}
+ break;
+
+ case 4:
+ if (nlayers == 3){skip = kTRUE; break;}
+ //if (TMath::Log(1.E-9+fTrackQuality[trackIndex]) - nused/(nlayers-3.0) < -15.0){skip = kTRUE; break;}
+ break;
+ }
+ if(skip){
+ candidates++;
+ //printf("REJECTED : %d [%d] nlayers %d trackQuality = %e nused %d\n", itrack, trackIndex, nlayers, fTrackQuality[trackIndex], nused);
+ continue;
+ }
+ signedTrack[trackIndex] = kTRUE;
+
+ // Build track parameters
+ AliTRDseedV1 *lseed =&sseed[trackIndex*6];
+ /* Int_t idx = 0;
+ while(idx<3 && !lseed->IsOK()) {
+ idx++;
+ lseed++;
+ }*/
+ Double_t x = lseed->GetX0();// - 3.5;
+ trackParams[0] = x; //NEW AB
+ trackParams[1] = lseed->GetYref(0); // lseed->GetYat(x);
+ trackParams[2] = lseed->GetZref(0); // lseed->GetZat(x);
+ trackParams[3] = TMath::Sin(TMath::ATan(lseed->GetYref(1)));
+ trackParams[4] = lseed->GetZref(1) / TMath::Sqrt(1. + lseed->GetYref(1) * lseed->GetYref(1));
+ trackParams[5] = lseed->GetC();
+ Int_t ich = 0; while(!(chamber = stack[ich])) ich++;
+ trackParams[6] = fGeom->GetSector(chamber->GetDetector());/* *alpha+shift; // Supermodule*/
+
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
+ //AliInfo(Form("Track %d [%d] nlayers %d trackQuality = %e nused %d, yref = %3.3f", itrack, trackIndex, nlayers, fTrackQuality[trackIndex], nused, trackParams[1]));
+
+ AliTRDseedV1 *dseed[6];
+ for(Int_t iseed = AliTRDgeometry::kNlayer; iseed--;) dseed[iseed] = new AliTRDseedV1(lseed[iseed]);
+
+ //Int_t eventNrInFile = esd->GetEventNumberInFile();
+ //AliInfo(Form("Number of clusters %d.", nclusters));
+ Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
+ Int_t trackNumber = AliTRDtrackerDebug::GetTrackNumber();
+ Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
+ cstreamer << "Clusters2TracksStack"
+ << "EventNumber=" << eventNumber
+ << "TrackNumber=" << trackNumber
+ << "CandidateNumber=" << candidateNumber
+ << "Iter=" << fSieveSeeding
+ << "Like=" << fTrackQuality[trackIndex]
+ << "S0.=" << dseed[0]
+ << "S1.=" << dseed[1]
+ << "S2.=" << dseed[2]
+ << "S3.=" << dseed[3]
+ << "S4.=" << dseed[4]
+ << "S5.=" << dseed[5]
+ << "p0=" << trackParams[0]
+ << "p1=" << trackParams[1]
+ << "p2=" << trackParams[2]
+ << "p3=" << trackParams[3]
+ << "p4=" << trackParams[4]
+ << "p5=" << trackParams[5]
+ << "p6=" << trackParams[6]
+ << "Ncl=" << ncl
+ << "NLayers=" << nlayers
+ << "Findable=" << findable
+ << "NUsed=" << nused
+ << "\n";
+ }
- //Int_t eventNrInFile = esd->GetEventNumberInFile();
- //AliInfo(Form("Number of clusters %d.", nclusters));
- Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
- Int_t trackNumber = AliTRDtrackerDebug::GetTrackNumber();
- Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
- cstreamer << "Clusters2TracksStack"
- << "EventNumber=" << eventNumber
- << "TrackNumber=" << trackNumber
- << "CandidateNumber=" << candidateNumber
- << "Iter=" << fSieveSeeding
- << "Like=" << fTrackQuality[trackIndex]
- << "S0.=" << dseed[0]
- << "S1.=" << dseed[1]
- << "S2.=" << dseed[2]
- << "S3.=" << dseed[3]
- << "S4.=" << dseed[4]
- << "S5.=" << dseed[5]
- << "p0=" << trackParams[0]
- << "p1=" << trackParams[1]
- << "p2=" << trackParams[2]
- << "p3=" << trackParams[3]
- << "p4=" << trackParams[4]
- << "p5=" << trackParams[5]
- << "p6=" << trackParams[6]
- << "Label=" << label
- << "Label1=" << label1
- << "Label2=" << label2
- << "FakeRatio=" << fakeratio
- << "Freq=" << frequency
- << "Ncl=" << ncl
- << "NLayers=" << nlayers
- << "Findable=" << findable
- << "NUsed=" << nused
- << "\n";
- }
+ AliTRDtrackV1 *track = MakeTrack(&sseed[trackIndex*kNPlanes], trackParams);
+ if(!track){
+ AliWarning("Fail to build a TRD Track.");
+ continue;
+ }
- AliTRDtrackV1 *track = MakeTrack(&sseed[trackIndex*kNPlanes], trackParams);
- if(!track){
- AliWarning("Fail to build a TRD Track.");
- continue;
- }
- //AliInfo("End of MakeTrack()");
- AliESDtrack *esdTrack = new ((*esdTrackList)[ntracks0++]) AliESDtrack();
- esdTrack->UpdateTrackParams(track, AliESDtrack::kTRDout);
- esdTrack->SetLabel(track->GetLabel());
- track->UpdateESDtrack(esdTrack);
- // write ESD-friends if neccessary
- if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0){
- AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(*track);
- calibTrack->SetOwner();
- esdTrack->AddCalibObject(calibTrack);
- }
- ntracks1++;
- AliTRDtrackerDebug::SetTrackNumber(AliTRDtrackerDebug::GetTrackNumber() + 1);
+ //AliInfo("End of MakeTrack()");
+ AliESDtrack *esdTrack = new ((*esdTrackList)[ntracks0++]) AliESDtrack();
+ esdTrack->UpdateTrackParams(track, AliESDtrack::kTRDout);
+ esdTrack->SetLabel(track->GetLabel());
+ track->UpdateESDtrack(esdTrack);
+ // write ESD-friends if neccessary
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0){
+ AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(*track);
+ calibTrack->SetOwner();
+ esdTrack->AddCalibObject(calibTrack);
+ }
+ ntracks1++;
+ AliTRDtrackerDebug::SetTrackNumber(AliTRDtrackerDebug::GetTrackNumber() + 1);
}
jSieve++;
for(Int_t ip = 0; ip < kNPlanes; ip++){
if(!(chamber = stack[ip])) continue;
- chamber->Build(fGeom);//Indices(fSieveSeeding);
+ chamber->Build(fGeom, cal);//Indices(fSieveSeeding);
}
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 10){
AliInfo(Form("Sieve level %d Plane config %d %d %d Quality %f", fSieveSeeding, configs[0], configs[1], configs[2], quality));
}
} while(fSieveSeeding<10); // end stack clusters sieve
// The overall chamber quality is given by the product of this 2 contributions.
//
- Double_t chamberQ[kNPlanes];
+ Double_t chamberQ[kNPlanes];memset(chamberQ, 0, kNPlanes*sizeof(Double_t));
AliTRDtrackingChamber *chamber = 0x0;
for(int iplane=0; iplane<kNPlanes; iplane++){
if(!(chamber = stack[iplane])) continue;
chamberQ[iplane] = (chamber = stack[iplane]) ? chamber->GetQuality() : 0.;
}
- Double_t tconfig[kNConfigs];
- Int_t planes[4];
+ Double_t tconfig[kNConfigs];memset(tconfig, 0, kNConfigs*sizeof(Double_t));
+ Int_t planes[] = {0, 0, 0, 0};
for(int iconf=0; iconf<kNConfigs; iconf++){
GetSeedingConfig(iconf, planes);
tconfig[iconf] = fgTopologicQA[iconf];
// chi2[1] = tracklet chi2 on the R direction
Double_t chi2[4];
- // Default positions for the anode wire in all 6 Layers in case of a stack with missing clusters
- // Positions taken using cosmic data taken with SM3 after rebuild
- Double_t x_def[kNPlanes] = {300.2, 312.8, 325.4, 338, 350.6, 363.2};
-
// this should be data member of AliTRDtrack
Double_t seedQuality[kMaxTracksStack];
// unpack control parameters
Int_t config = ipar[0];
Int_t ntracks = ipar[1];
+ Int_t istack = ipar[2];
Int_t planes[kNSeedPlanes]; GetSeedingConfig(config, planes);
Int_t planesExt[kNPlanes-kNSeedPlanes]; GetExtrapolationConfig(config, planesExt);
// Init chambers geometry
- Int_t ic = 0; while(!(chamber = stack[ic])) ic++;
- Int_t istack = fGeom->GetStack(chamber->GetDetector());
Double_t hL[kNPlanes]; // Tilting angle
Float_t padlength[kNPlanes]; // pad lenghts
+ Float_t padwidth[kNPlanes]; // pad widths
AliTRDpadPlane *pp = 0x0;
for(int iplane=0; iplane<kNPlanes; iplane++){
pp = fGeom->GetPadPlane(iplane, istack);
hL[iplane] = TMath::Tan(TMath::DegToRad()*pp->GetTiltingAngle());
padlength[iplane] = pp->GetLengthIPad();
+ padwidth[iplane] = pp->GetWidthIPad();
+ }
+
+ // Init anode wire position for chambers
+ Double_t x0[kNPlanes], // anode wire position
+ driftLength = .5*AliTRDgeometry::AmThick() - AliTRDgeometry::DrThick(); // drift length
+ TGeoHMatrix *matrix = 0x0;
+ Double_t loc[] = {AliTRDgeometry::AnodePos(), 0., 0.};
+ Double_t glb[] = {0., 0., 0.};
+ AliTRDtrackingChamber **cIter = &stack[0];
+ for(int iLayer=0; iLayer<kNPlanes; iLayer++,cIter++){
+ if(!(*cIter)) continue;
+ if(!(matrix = fGeom->GetClusterMatrix((*cIter)->GetDetector()))){
+ continue;
+ x0[iLayer] = fgkX0[iLayer];
+ }
+ matrix->LocalToMaster(loc, glb);
+ x0[iLayer] = glb[0];
}
-
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
+
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 10){
AliInfo(Form("Making seeds Stack[%d] Config[%d] Tracks[%d]...", istack, config, ntracks));
}
+ // Build seeding layers
ResetSeedTB();
Int_t nlayers = 0;
for(int isl=0; isl<kNSeedPlanes; isl++){
if(!chamber->GetSeedingLayer(fSeedTB[isl], fGeom, fReconstructor)) continue;
nlayers++;
}
- if(nlayers < 4) return 0;
+ if(nlayers < kNSeedPlanes) return ntracks;
// Start finding seeds
FitRieman(c, chi2);
- AliTRDseedV1 *tseed = 0x0;
- for(int iLayer=0; iLayer<kNPlanes; iLayer++){
- tseed = &cseed[iLayer];
- tseed->SetPlane(iLayer);
+ AliTRDseedV1 *tseed = &cseed[0];
+ cIter = &stack[0];
+ for(int iLayer=0; iLayer<kNPlanes; iLayer++, tseed++, cIter++){
+ Int_t det = (*cIter) ? (*cIter)->GetDetector() : -1;
+ tseed->SetDetector(det);
tseed->SetTilt(hL[iLayer]);
tseed->SetPadLength(padlength[iLayer]);
+ tseed->SetPadWidth(padwidth[iLayer]);
tseed->SetReconstructor(fReconstructor);
- Double_t x_anode = stack[iLayer] ? stack[iLayer]->GetX() : x_def[iLayer];
- tseed->SetX0(x_anode);
+ tseed->SetX0(det<0 ? fR[iLayer]+driftLength : x0[iLayer]);
tseed->Init(GetRiemanFitter());
+ tseed->SetStandAlone(kTRUE);
}
Bool_t isFake = kFALSE;
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
AliRieman *rim = GetRiemanFitter();
- TTreeSRedirector &cs0 = *fgDebugStreamer;
+ TTreeSRedirector &cs0 = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
cs0 << "MakeSeeds0"
<<"EventNumber=" << eventNumber
<<"CandidateNumber=" << candidateNumber
<<"RiemanFitter.=" << rim
<<"\n";
}
-
if(chi2[0] > fReconstructor->GetRecoParam() ->GetChi2Z()/*7./(3. - sLayer)*//*iter*/){
- //AliInfo(Form("Failed chi2 filter on chi2Z [%f].", chi2[0]));
+// //AliInfo(Form("Failed chi2 filter on chi2Z [%f].", chi2[0]));
AliTRDtrackerDebug::SetCandidateNumber(AliTRDtrackerDebug::GetCandidateNumber() + 1);
continue;
}
if(chi2[1] > fReconstructor->GetRecoParam() ->GetChi2Y()/*1./(3. - sLayer)*//*iter*/){
- //AliInfo(Form("Failed chi2 filter on chi2Y [%f].", chi2[1]));
+// //AliInfo(Form("Failed chi2 filter on chi2Y [%f].", chi2[1]));
AliTRDtrackerDebug::SetCandidateNumber(AliTRDtrackerDebug::GetCandidateNumber() + 1);
continue;
}
//AliInfo("Passed chi2 filter.");
// try attaching clusters to tracklets
- Int_t nUsedCl = 0;
Int_t mlayers = 0;
for(int iLayer=0; iLayer<kNSeedPlanes; iLayer++){
Int_t jLayer = planes[iLayer];
- if(!cseed[jLayer].AttachClustersIter(stack[jLayer], 5., kFALSE, c[iLayer])) continue;
- nUsedCl += cseed[jLayer].GetNUsed();
- if(nUsedCl > 25) break;
+ if(!cseed[jLayer].AttachClusters(stack[jLayer], kTRUE)) continue;
+ cseed[jLayer].UpdateUsed();
+ if(!cseed[jLayer].IsOK()) continue;
mlayers++;
}
for(int iLayer=0; iLayer<kNPlanes-kNSeedPlanes; iLayer++){
Int_t jLayer = planesExt[iLayer];
if(!(chamber = stack[jLayer])) continue;
- cseed[jLayer].AttachClustersIter(chamber, 1000.);
+ cseed[jLayer].AttachClusters(chamber, kTRUE);
}
fTrackQuality[ntracks] = 1.; // dummy value
ntracks++;
- if(ntracks == kMaxTracksStack){
- AliWarning(Form("Number of seeds reached maximum allowed (%d) in stack.", kMaxTracksStack));
- return ntracks;
- }
+ if(ntracks == kMaxTracksStack) return ntracks;
cseed += 6;
continue;
}
+ // Update Seeds and calculate Likelihood
// fit tracklets and cook likelihood
- FitTiltedRieman(&cseed[0], kTRUE);// Update Seeds and calculate Likelihood
- chi2[0] = GetChi2Y(&cseed[0]);
- chi2[1] = GetChi2Z(&cseed[0]);
- //Chi2 definitions in testing stage
- //chi2[0] = GetChi2YTest(&cseed[0]);
- //chi2[1] = GetChi2ZTest(&cseed[0]);
- Double_t like = CookLikelihood(&cseed[0], planes, chi2); // to be checked
+ FitTiltedRieman(&cseed[0], kTRUE);
+ for(int iLayer=0; iLayer<kNSeedPlanes; iLayer++){
+ Int_t jLayer = planes[iLayer];
+ cseed[jLayer].Fit(kTRUE);
+ }
+ Double_t like = CookLikelihood(&cseed[0], planes); // to be checked
if (TMath::Log(1.E-9 + like) < fReconstructor->GetRecoParam() ->GetTrackLikelihood()){
//AliInfo(Form("Failed likelihood %f[%e].", TMath::Log(1.E-9 + like), like));
fSeedLayer[ntracks] = config;/*sLayer;*/
// attach clusters to the extrapolation seeds
- Int_t nusedf = 0; // debug value
for(int iLayer=0; iLayer<kNPlanes-kNSeedPlanes; iLayer++){
Int_t jLayer = planesExt[iLayer];
if(!(chamber = stack[jLayer])) continue;
if ((jLayer == 0) && !(cseed[1].IsOK())) continue;
if ((jLayer == 5) && !(cseed[4].IsOK())) continue;
AliTRDseedV1 pseed = cseed[jLayer];
- if(!pseed.AttachClustersIter(chamber, 1000.)) continue;
+ if(!pseed.AttachClusters(chamber, kTRUE)) continue;
+ pseed.Fit(kTRUE);
cseed[jLayer] = pseed;
- nusedf += cseed[jLayer].GetNUsed(); // debug value
FitTiltedRieman(cseed, kTRUE);
+ cseed[jLayer].Fit(kTRUE);
}
// AliInfo("Extrapolation done.");
// Debug Stream containing all the 6 tracklets
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) >= 2){
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
TLinearFitter *tiltedRieman = GetTiltedRiemanFitter();
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
<< "\n";
}
- if(fReconstructor->GetRecoParam()->HasImproveTracklets() && ImproveSeedQuality(stack, cseed) < 4){
+ if(fReconstructor->HasImproveTracklets() && ImproveSeedQuality(stack, cseed) < 4){
AliTRDtrackerDebug::SetCandidateNumber(AliTRDtrackerDebug::GetCandidateNumber() + 1);
continue;
}
// do the final track fitting (Once with vertex constraint and once without vertex constraint)
Double_t chi2Vals[3];
chi2Vals[0] = FitTiltedRieman(&cseed[0], kFALSE);
- if(fReconstructor->GetRecoParam() ->IsVertexConstrained())
+ if(fReconstructor->HasVertexConstrained())
chi2Vals[1] = FitTiltedRiemanConstraint(&cseed[0], GetZ()); // Do Vertex Constrained fit if desired
else
chi2Vals[1] = 1.;
//chi2Vals[2] = GetChi2ZTest(&cseed[0]);
fTrackQuality[ntracks] = CalculateTrackLikelihood(&cseed[0], &chi2Vals[0]);
//AliInfo("Hyperplane fit done\n");
-
- // finalize tracklets
- Int_t labels[12];
- Int_t outlab[24];
- Int_t nlab = 0;
- for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
- if (!cseed[iLayer].IsOK()) continue;
-
- if (cseed[iLayer].GetLabels(0) >= 0) {
- labels[nlab] = cseed[iLayer].GetLabels(0);
- nlab++;
- }
-
- if (cseed[iLayer].GetLabels(1) >= 0) {
- labels[nlab] = cseed[iLayer].GetLabels(1);
- nlab++;
- }
- }
- Freq(nlab,labels,outlab,kFALSE);
- Int_t label = outlab[0];
- Int_t frequency = outlab[1];
- for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
- cseed[iLayer].SetFreq(frequency);
- cseed[iLayer].SetChi2Z(chi2[1]);
- }
-
+
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) >= 2){
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
TLinearFitter *fitterTC = GetTiltedRiemanFitterConstraint();
TLinearFitter *fitterT = GetTiltedRiemanFitter();
+ Int_t ncls = 0;
+ for(Int_t iseed = 0; iseed < kNPlanes; iseed++){
+ ncls += cseed[iseed].IsOK() ? cseed[iseed].GetN2() : 0;
+ }
cstreamer << "MakeSeeds2"
<< "EventNumber=" << eventNumber
<< "CandidateNumber=" << candidateNumber
<< "Chi2TR=" << chi2Vals[0]
<< "Chi2TC=" << chi2Vals[1]
<< "Nlayers=" << mlayers
- << "NUsedS=" << nUsedCl
- << "NUsed=" << nusedf
+ << "NClusters=" << ncls
<< "Like=" << like
<< "S0.=" << &cseed[0]
<< "S1.=" << &cseed[1]
<< "S3.=" << &cseed[3]
<< "S4.=" << &cseed[4]
<< "S5.=" << &cseed[5]
- << "Label=" << label
- << "Freq=" << frequency
<< "FitterT.=" << fitterT
<< "FitterTC.=" << fitterTC
<< "\n";
// To be discussed with Marian !!
//
- AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
- if (!calibra) AliInfo("Could not get Calibra instance\n");
Double_t alpha = AliTRDgeometry::GetAlpha();
Double_t shift = AliTRDgeometry::GetAlpha()/2.0;
AliTRDtrackV1 track(seeds, ¶ms[1], c, params[0], params[6]*alpha+shift);
track.PropagateTo(params[0]-5.0);
+ AliTRDseedV1 *ptrTracklet = 0x0;
+ // Sign clusters
+ for (Int_t jLayer = 0; jLayer < AliTRDgeometry::kNlayer; jLayer++) {
+ ptrTracklet = &seeds[jLayer];
+ if(!ptrTracklet->IsOK()) continue;
+ if(TMath::Abs(ptrTracklet->GetYref(1) - ptrTracklet->GetYfit(1)) >= .2) continue; // check this condition with Marian
+ }
+ //
+ if(fReconstructor->IsHLT()){
+ for(Int_t ip=0; ip<kNPlanes; ip++){
+ track.UnsetTracklet(ip);
+ ptrTracklet = SetTracklet(&seeds[ip]);
+ ptrTracklet->UseClusters();
+ track.SetTracklet(ptrTracklet, fTracklets->GetEntriesFast()-1);
+ }
+ AliTRDtrackV1 *ptrTrack = SetTrack(&track);
+ ptrTrack->SetReconstructor(fReconstructor);
+ return ptrTrack;
+ }
+
track.ResetCovariance(1);
Int_t nc = TMath::Abs(FollowBackProlongation(track));
+ if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 5){
+ Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
+ Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
+ Double_t p[5]; // Track Params for the Debug Stream
+ track.GetExternalParameters(params[0], p);
+ TTreeSRedirector &cs = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
+ cs << "MakeTrack"
+ << "EventNumber=" << eventNumber
+ << "CandidateNumber=" << candidateNumber
+ << "nc=" << nc
+ << "X=" << params[0]
+ << "Y=" << p[0]
+ << "Z=" << p[1]
+ << "snp=" << p[2]
+ << "tnd=" << p[3]
+ << "crv=" << p[4]
+ << "Yin=" << params[1]
+ << "Zin=" << params[2]
+ << "snpin=" << params[3]
+ << "tndin=" << params[4]
+ << "crvin=" << params[5]
+ << "track.=" << &track
+ << "\n";
+ }
if (nc < 30) return 0x0;
AliTRDtrackV1 *ptrTrack = SetTrack(&track);
+ ptrTrack->SetReconstructor(fReconstructor);
ptrTrack->CookLabel(.9);
+
// computes PID for track
ptrTrack->CookPID();
// update calibration references using this track
- if(calibra->GetHisto2d()) calibra->UpdateHistogramsV1(ptrTrack);
-
+ AliTRDCalibraFillHisto *calibra = AliTRDCalibraFillHisto::Instance();
+ if (!calibra){
+ AliInfo("Could not get Calibra instance\n");
+ if(calibra->GetHisto2d()) calibra->UpdateHistogramsV1(ptrTrack);
+ }
return ptrTrack;
}
// layers : Array of propagation layers for a stack/supermodule
// cseed : Array of 6 seeding tracklets which has to be improved
//
- // Output :
+ // Output :
// cssed : Improved seeds
//
// Detailed description
for (Int_t jLayer = 5; jLayer > 1; jLayer--) {
Int_t bLayer = sortindexes[jLayer];
if(!(chamber = stack[bLayer])) continue;
- bseed[bLayer].AttachClustersIter(chamber, squality[bLayer], kTRUE);
+ bseed[bLayer].AttachClusters(chamber, kTRUE);
+ bseed[bLayer].Fit(kTRUE);
if(bseed[bLayer].IsOK()) nLayers++;
}
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
TLinearFitter *tiltedRieman = GetTiltedRiemanFitter();
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
cstreamer << "ImproveSeedQuality"
<< "EventNumber=" << eventNumber
<< "CandidateNumber=" << candidateNumber
<< "\n";
}
} // Loop: iter
-
// we are sure that at least 2 tracklets are OK !
return nLayers+2;
}
// debug level 2
//
- Double_t sumdaf = 0, nLayers = 0;
+ Double_t chi2phi = 0, nLayers = 0;
for (Int_t iLayer = 0; iLayer < kNPlanes; iLayer++) {
if(!tracklets[iLayer].IsOK()) continue;
- sumdaf += TMath::Abs((tracklets[iLayer].GetYfit(1) - tracklets[iLayer].GetYref(1))/ tracklets[iLayer].GetSigmaY2());
+ chi2phi += tracklets[iLayer].GetChi2Phi();
nLayers++;
}
- sumdaf /= Float_t (nLayers - 2.0);
+ chi2phi /= Float_t (nLayers - 2.0);
Double_t likeChi2Z = TMath::Exp(-chi2[2] * 0.14); // Chi2Z
- Double_t likeChi2TC = (fReconstructor->GetRecoParam() ->IsVertexConstrained()) ?
+ Double_t likeChi2TC = (fReconstructor->HasVertexConstrained()) ?
TMath::Exp(-chi2[1] * 0.677) : 1; // Constrained Tilted Riemann
Double_t likeChi2TR = TMath::Exp(-chi2[0] * 0.78); // Non-constrained Tilted Riemann
- Double_t likeAF = TMath::Exp(-sumdaf * 3.23);
- Double_t trackLikelihood = likeChi2Z * likeChi2TR * likeAF;
+ Double_t likeChi2Phi= TMath::Exp(-chi2phi * 3.23);
+ Double_t trackLikelihood = likeChi2Z * likeChi2TR * likeChi2Phi;
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) >= 2){
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
cstreamer << "CalculateTrackLikelihood0"
<< "EventNumber=" << eventNumber
<< "CandidateNumber=" << candidateNumber
<< "LikeChi2Z=" << likeChi2Z
<< "LikeChi2TR=" << likeChi2TR
<< "LikeChi2TC=" << likeChi2TC
- << "LikeAF=" << likeAF
+ << "LikeChi2Phi=" << likeChi2Phi
<< "TrackLikelihood=" << trackLikelihood
<< "\n";
}
}
//____________________________________________________________________
-Double_t AliTRDtrackerV1::CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4]
- , Double_t *chi2)
+Double_t AliTRDtrackerV1::CookLikelihood(AliTRDseedV1 *cseed, Int_t planes[4])
{
//
// Calculate the probability of this track candidate.
//
// ratio of the total number of clusters/track which are expected to be found by the tracker.
- Float_t fgFindable = fReconstructor->GetRecoParam() ->GetFindableClusters();
-
+ const AliTRDrecoParam *fRecoPars = fReconstructor->GetRecoParam();
- Int_t nclusters = 0;
+ Double_t chi2y = GetChi2Y(&cseed[0]);
+ Double_t chi2z = GetChi2Z(&cseed[0]);
+
+ Float_t nclusters = 0.;
Double_t sumda = 0.;
for(UChar_t ilayer = 0; ilayer < 4; ilayer++){
Int_t jlayer = planes[ilayer];
nclusters += cseed[jlayer].GetN2();
- sumda += TMath::Abs(cseed[jlayer].GetYfitR(1) - cseed[jlayer].GetYref(1));
+ sumda += TMath::Abs(cseed[jlayer].GetYfit(1) - cseed[jlayer].GetYref(1));
}
- Double_t likea = TMath::Exp(-sumda*10.6);
+ nclusters *= .25;
+
+ Double_t likea = TMath::Exp(-sumda * fRecoPars->GetPhiSlope());
Double_t likechi2y = 0.0000000001;
- if (chi2[0] < 0.5) likechi2y += TMath::Exp(-TMath::Sqrt(chi2[0]) * 7.73);
- Double_t likechi2z = TMath::Exp(-chi2[1] * 0.088) / TMath::Exp(-chi2[1] * 0.019);
- Int_t enc = Int_t(fgFindable*4.*fgNTimeBins); // Expected Number Of Clusters, normally 72
- Double_t likeN = TMath::Exp(-(enc - nclusters) * 0.19);
-
+ if (fReconstructor->IsCosmic() || chi2y < fRecoPars->GetChi2YCut()) likechi2y += TMath::Exp(-TMath::Sqrt(chi2y) * fRecoPars->GetChi2YSlope());
+ Double_t likechi2z = TMath::Exp(-chi2z * fRecoPars->GetChi2ZSlope());
+ Double_t likeN = TMath::Exp(-(fRecoPars->GetNMeanClusters() - nclusters) / fRecoPars->GetNSigmaClusters());
Double_t like = likea * likechi2y * likechi2z * likeN;
// AliInfo(Form("sumda(%f) chi2[0](%f) chi2[1](%f) likea(%f) likechi2y(%f) likechi2z(%f) nclusters(%d) likeN(%f)", sumda, chi2[0], chi2[1], likea, likechi2y, likechi2z, nclusters, likeN));
if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) >= 2){
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
Int_t candidateNumber = AliTRDtrackerDebug::GetCandidateNumber();
+ Int_t nTracklets = 0; Float_t mean_ncls = 0;
+ for(Int_t iseed=0; iseed < kNPlanes; iseed++){
+ if(!cseed[iseed].IsOK()) continue;
+ nTracklets++;
+ mean_ncls += cseed[iseed].GetN2();
+ }
+ if(nTracklets) mean_ncls /= nTracklets;
// The Debug Stream contains the seed
- TTreeSRedirector &cstreamer = *fgDebugStreamer;
+ TTreeSRedirector &cstreamer = *fReconstructor->GetDebugStream(AliTRDReconstructor::kTracker);
cstreamer << "CookLikelihood"
<< "EventNumber=" << eventNumber
<< "CandidateNumber=" << candidateNumber
<< "tracklet4.=" << &cseed[4]
<< "tracklet5.=" << &cseed[5]
<< "sumda=" << sumda
- << "chi0=" << chi2[0]
- << "chi1=" << chi2[1]
+ << "chi2y=" << chi2y
+ << "chi2z=" << chi2z
<< "likea=" << likea
<< "likechi2y=" << likechi2y
<< "likechi2z=" << likechi2z
<< "nclusters=" << nclusters
<< "likeN=" << likeN
<< "like=" << like
+ << "meanncls=" << mean_ncls
<< "\n";
}
return like;
}
-
-
//____________________________________________________________________
void AliTRDtrackerV1::GetSeedingConfig(Int_t iconfig, Int_t planes[4])
{
return tracklets[startIndex].GetX0() + (2.5 - startIndex) * meanDistance - 0.5 * (AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick());
}
-//_____________________________________________________________________________
-Int_t AliTRDtrackerV1::Freq(Int_t n, const Int_t *inlist
- , Int_t *outlist, Bool_t down)
-{
- //
- // Sort eleements according occurancy
- // The size of output array has is 2*n
- //
-
- if (n <= 0) {
- return 0;
- }
-
- Int_t *sindexS = new Int_t[n]; // Temporary array for sorting
- Int_t *sindexF = new Int_t[2*n];
- for (Int_t i = 0; i < n; i++) {
- sindexF[i] = 0;
- }
-
- TMath::Sort(n,inlist,sindexS,down);
-
- Int_t last = inlist[sindexS[0]];
- Int_t val = last;
- sindexF[0] = 1;
- sindexF[0+n] = last;
- Int_t countPos = 0;
+// //_____________________________________________________________________________
+// Int_t AliTRDtrackerV1::Freq(Int_t n, const Int_t *inlist
+// , Int_t *outlist, Bool_t down)
+// {
+// //
+// // Sort eleements according occurancy
+// // The size of output array has is 2*n
+// //
+//
+// if (n <= 0) {
+// return 0;
+// }
+//
+// Int_t *sindexS = new Int_t[n]; // Temporary array for sorting
+// Int_t *sindexF = new Int_t[2*n];
+// for (Int_t i = 0; i < n; i++) {
+// sindexF[i] = 0;
+// }
+//
+// TMath::Sort(n,inlist,sindexS,down);
+//
+// Int_t last = inlist[sindexS[0]];
+// Int_t val = last;
+// sindexF[0] = 1;
+// sindexF[0+n] = last;
+// Int_t countPos = 0;
+//
+// // Find frequency
+// for (Int_t i = 1; i < n; i++) {
+// val = inlist[sindexS[i]];
+// if (last == val) {
+// sindexF[countPos]++;
+// }
+// else {
+// countPos++;
+// sindexF[countPos+n] = val;
+// sindexF[countPos]++;
+// last = val;
+// }
+// }
+// if (last == val) {
+// countPos++;
+// }
+//
+// // Sort according frequency
+// TMath::Sort(countPos,sindexF,sindexS,kTRUE);
+//
+// for (Int_t i = 0; i < countPos; i++) {
+// outlist[2*i ] = sindexF[sindexS[i]+n];
+// outlist[2*i+1] = sindexF[sindexS[i]];
+// }
+//
+// delete [] sindexS;
+// delete [] sindexF;
+//
+// return countPos;
+//
+// }
- // Find frequency
- for (Int_t i = 1; i < n; i++) {
- val = inlist[sindexS[i]];
- if (last == val) {
- sindexF[countPos]++;
- }
- else {
- countPos++;
- sindexF[countPos+n] = val;
- sindexF[countPos]++;
- last = val;
- }
- }
- if (last == val) {
- countPos++;
- }
- // Sort according frequency
- TMath::Sort(countPos,sindexF,sindexS,kTRUE);
+//____________________________________________________________________
+void AliTRDtrackerV1::ResetSeedTB()
+{
+// reset buffer for seeding time bin layers. If the time bin
+// layers are not allocated this function allocates them
- for (Int_t i = 0; i < countPos; i++) {
- outlist[2*i ] = sindexF[sindexS[i]+n];
- outlist[2*i+1] = sindexF[sindexS[i]];
+ for(Int_t isl=0; isl<kNSeedPlanes; isl++){
+ if(!fSeedTB[isl]) fSeedTB[isl] = new AliTRDchamberTimeBin();
+ else fSeedTB[isl]->Clear();
}
-
- delete [] sindexS;
- delete [] sindexF;
-
- return countPos;
-
}
-//____________________________________________________________________
-void AliTRDtrackerV1::SetReconstructor(const AliTRDReconstructor *rec)
-{
- fReconstructor = rec;
- if(fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 1){
- if(!fgDebugStreamer){
- TDirectory *savedir = gDirectory;
- fgDebugStreamer = new TTreeSRedirector("TRD.TrackerDebug.root");
- savedir->cd();
- }
- }
-}
-
//_____________________________________________________________________________
Float_t AliTRDtrackerV1::GetChi2Y(AliTRDseedV1 *tracklets) const
{
- // Chi2 definition on y-direction
+ // Calculates normalized chi2 in y-direction
+ // chi2 = Sum chi2 / n_tracklets
- Float_t chi2 = 0;
- for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
+ Double_t chi2 = 0.; Int_t n = 0;
+ for(Int_t ipl = kNPlanes; ipl--;){
if(!tracklets[ipl].IsOK()) continue;
- Double_t distLayer = tracklets[ipl].GetYfit(0) - tracklets[ipl].GetYref(0);
- chi2 += distLayer * distLayer;
- }
- return chi2;
-}
-
-//____________________________________________________________________
-void AliTRDtrackerV1::ResetSeedTB()
-{
-// reset buffer for seeding time bin layers. If the time bin
-// layers are not allocated this function allocates them
-
- for(Int_t isl=0; isl<kNSeedPlanes; isl++){
- if(!fSeedTB[isl]) fSeedTB[isl] = new AliTRDchamberTimeBin();
- else fSeedTB[isl]->Clear();
+ chi2 += tracklets[ipl].GetChi2Y();
+ n++;
}
+ return n ? chi2/n : 0.;
}
//_____________________________________________________________________________
Float_t AliTRDtrackerV1::GetChi2Z(AliTRDseedV1 *tracklets) const
{
- // Chi2 definition on z-direction
+ // Calculates normalized chi2 in z-direction
+ // chi2 = Sum chi2 / n_tracklets
- Float_t chi2 = 0;
- for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
+ Double_t chi2 = 0; Int_t n = 0;
+ for(Int_t ipl = kNPlanes; ipl--;){
if(!tracklets[ipl].IsOK()) continue;
- Double_t distLayer = tracklets[ipl].GetMeanz() - tracklets[ipl].GetZref(0);
- chi2 += distLayer * distLayer;
+ chi2 += tracklets[ipl].GetChi2Z();
+ n++;
}
- return chi2;
+ return n ? chi2/n : 0.;
}
///////////////////////////////////////////////////////
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff