#include <TTree.h>
#include <TClonesArray.h>
#include <TTreeStream.h>
+#include <TGeoMatrix.h>
+#include <TGeoManager.h>
#include "AliLog.h"
#include "AliMathBase.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;
AliRieman* AliTRDtrackerV1::fgRieman = 0x0;
TLinearFitter* AliTRDtrackerV1::fgTiltedRieman = 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*));
}
//____________________________________________________________________
if (!tracklet) return kFALSE;
// get detector for this tracklet
- Int_t idet = tracklet->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);
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.SetReconstructor(fReconstructor);
- track.SetKink(Bool_t(seed->GetKinkIndex(0)));
- //Int_t lbl = seed->GetLabel();
- //track.SetSeedLabel(lbl);
+ 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++;
- // Make backup and mark entrance in the TRD
- seed->UpdateTrackParams(&track, AliESDtrack::kTRDin);
+ // store track status at TRD entrance
seed->UpdateTrackParams(&track, AliESDtrack::kTRDbackup);
- Float_t p4 = track.GetC(track.GetBz());
- expectedClr = FollowBackProlongation(track);
- if (expectedClr<0) continue; // Back prolongation failed
+ // 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 /*&& quality TODO*/){
+ if (fReconstructor->GetStreamLevel(AliTRDReconstructor::kTracker) > 0){
AliTRDtrackV1 *calibTrack = new AliTRDtrackV1(track);
calibTrack->SetOwner();
seed->AddCalibObject(calibTrack);
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(track.GetBz()) * (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(track.GetBz()) * (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);
kStoreIn = kFALSE;
}
- 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();
}
}
Int_t eventNumber = AliTRDtrackerDebug::GetEventNumber();
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 = .5*AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick();
+ Int_t n = 0;
+ Double_t driftLength = .5*AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick();
AliTRDtrackingChamber *chamber = 0x0;
AliTRDseedV1 tracklet, *ptrTracklet = 0x0;
tracklets[ip] = t.GetTracklet(ip);
t.UnsetTracklet(ip);
}
- Bool_t kStoreIn = kTRUE;
-
+ Bool_t kStoreIn = kTRUE, kPropagateIn = kTRUE;
// Loop through the TRD layers
- for (Int_t ilayer = 0; ilayer < kNPlanes; ilayer++) {
- // BUILD TRACKLET IF NOT ALREADY BUILT
- Double_t x = 0., x0, y, z, alpha;
- ptrTracklet = tracklets[ilayer];
- if(!ptrTracklet){
- ptrTracklet = new(&tracklet) AliTRDseedV1(ilayer);
- ptrTracklet->SetReconstructor(fReconstructor);
- ptrTracklet->SetKink(t.IsKink());
- 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;
-
- // Propagate closer to the current layer
- x0 = x - 1.5*clength;
- if (x0 > (fgkMaxStep + t.GetX()) && !PropagateToX(t, x0-fgkMaxStep, fgkMaxStep)) return -1/*nClustersExpected*/;
- if (!AdjustSector(&t)) return -1/*nClustersExpected*/;
- if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) return -1/*nClustersExpected*/;
-
- if (!t.GetProlongation(x, y, z)) return -1/*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.SetDetector(chamber->GetDetector());
- tracklet.SetX0(x);
- tracklet.UpDate(&t);
-// if(!tracklet.Init(&t)){
-// t.SetStopped(kTRUE);
-// return nClustersExpected;
-// }
- if(!tracklet.AttachClusters(chamber, kTRUE)) continue;
- //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()){
- ptrTracklet->Reset();
- if(x < 1.) continue; //temporary
- if(!PropagateToX(t, x-fgkMaxStep, fgkMaxStep)) return -1/*nClustersExpected*/;
- if(!AdjustSector(&t)) return -1/*nClustersExpected*/;
- if(TMath::Abs(t.GetSnp()) > fgkMaxSnp) return -1/*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 -1/*nClustersExpected*/;
- if (!AdjustSector(&t)) return -1/*nClustersExpected*/;
- if (TMath::Abs(t.GetSnp()) > fgkMaxSnp) return -1/*nClustersExpected*/;
-
- // load tracklet to the tracker and the track
- ptrTracklet->UseClusters();
- ptrTracklet->Fit(kFALSE); // no tilt correction
- 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->GetX(); //GetX0();
- if (!t.GetProlongation(x, y, z)) return -1/*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];
- if(AliTracker::MeanMaterialBudget(xyz0, xyz1, param)<=0.) return -1;
- // 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 -1/*nClustersExpected*/;
- if (!AdjustSector(&t)) return -1/*nClustersExpected*/;
-
- if(kStoreIn){
+ if(kPropagateIn){
t.SetTrackLow();
- kStoreIn = kFALSE;
+ kPropagateIn = kFALSE;
}
- Double_t maxChi2 = t.GetPredictedChi2(ptrTracklet);
- if (!t.Update(ptrTracklet, maxChi2)) return -1/*nClustersExpected*/;
- ptrTracklet->UpDate(&t);
- if (maxChi2<1e+10) {
- nClustersExpected += ptrTracklet->GetN();
- //t.SetTracklet(&tracklet, index);
+ // 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.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 = *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;
}
//_________________________________________________________________________
//
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 < AliTRDseedV1::kNTimeBins; itb++){
+ for(Int_t itb = 0; itb < AliTRDseedV1::kNclusters; itb++){
if(!tracklets[ilr].IsUsable(itb)) continue;
cl = tracklets[ilr].GetClusters(itb);
x = cl->GetX();
// Containers for Least-square fitter
for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
if(!tracklets[ipl].IsOK()) continue;
- for(Int_t itb = 0; itb < AliTRDseedV1::kNTimeBins; 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);
// Containers for Least-square fitter
for(Int_t ipl = 0; ipl < kNPlanes; ipl++){
if(!tracklets[ipl].IsOK()) continue;
- for(Int_t itb = 0; itb < AliTRDseedV1::kNTimeBins; 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();
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
// for(Int_t ily=AliTRDgeometry::kNlayer; ily--;){
// if(!(tracklet = track->GetTracklet(ily))) continue;
// AliTRDcluster *c = 0x0;
-// for(Int_t ic=AliTRDseed::knTimebins; ic--;){
+// for(Int_t ic=AliTRDseed::kNclusters; ic--;){
// if(!(c=tracklet->GetClusters(ic))) continue;
// c->Use();
// }
// 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));
}
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;
Int_t jseed = kNPlanes*trackIndex+jLayer;
if(!sseed[jseed].IsOK()) continue;
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();
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]));
+ //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];
- memcpy(dseed, lseed, 6*sizeof(AliTRDseedV1*));
+ 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));
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, 338.0, 350.6, 363.2};
-
// this should be data member of AliTRDtrack
Double_t seedQuality[kMaxTracksStack];
// Init chambers geometry
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));
}
if(!chamber->GetSeedingLayer(fSeedTB[isl], fGeom, fReconstructor)) continue;
nlayers++;
}
- if(nlayers < 4) return ntracks;
+ if(nlayers < kNSeedPlanes) return ntracks;
// Start finding seeds
FitRieman(c, chi2);
AliTRDseedV1 *tseed = &cseed[0];
- AliTRDtrackingChamber **cIter = &stack[0];
+ cIter = &stack[0];
for(int iLayer=0; iLayer<kNPlanes; iLayer++, tseed++, cIter++){
- tseed->SetDetector((*cIter) ? (*cIter)->GetDetector() : -1);
+ 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);
- tseed->SetX0((*cIter) ? (*cIter)->GetX() : x_def[iLayer]);
+ tseed->SetX0(det<0 ? fR[iLayer]+driftLength : x0[iLayer]);
tseed->Init(GetRiemanFitter());
tseed->SetStandAlone(kTRUE);
}
<< "\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.;
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 likeChi2Phi= TMath::Exp(-chi2phi * 3.23);
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff