1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 ////////////////////////////////////////////////////////////////////////////
20 // The TRD track seed //
23 // Alex Bercuci <A.Bercuci@gsi.de> //
24 // Markus Fasel <M.Fasel@gsi.de> //
26 ////////////////////////////////////////////////////////////////////////////
29 #include "TLinearFitter.h"
30 #include "TClonesArray.h" // tmp
31 #include <TTreeStream.h>
34 #include "AliMathBase.h"
36 #include "AliTRDseedV1.h"
37 #include "AliTRDcluster.h"
38 #include "AliTRDtrack.h"
39 #include "AliTRDcalibDB.h"
40 #include "AliTRDchamberTimeBin.h"
41 #include "AliTRDtrackingChamber.h"
42 #include "AliTRDtrackerV1.h"
43 #include "AliTRDReconstructor.h"
44 #include "AliTRDrecoParam.h"
45 #include "AliTRDgeometry.h"
46 #include "Cal/AliTRDCalPID.h"
48 ClassImp(AliTRDseedV1)
50 //____________________________________________________________________
51 AliTRDseedV1::AliTRDseedV1(Int_t plane)
62 for(int islice=0; islice < knSlices; islice++) fdEdx[islice] = 0.;
63 for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fProb[ispec] = -1.;
66 //____________________________________________________________________
67 AliTRDseedV1::AliTRDseedV1(const AliTRDseedV1 &ref)
68 :AliTRDseed((AliTRDseed&)ref)
76 // Copy Constructor performing a deep copy
80 for(int islice=0; islice < knSlices; islice++) fdEdx[islice] = ref.fdEdx[islice];
81 for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fProb[ispec] = ref.fProb[ispec];
85 //____________________________________________________________________
86 AliTRDseedV1& AliTRDseedV1::operator=(const AliTRDseedV1 &ref)
89 // Assignment Operator using the copy function
100 //____________________________________________________________________
101 AliTRDseedV1::~AliTRDseedV1()
104 // Destructor. The RecoParam object belongs to the underlying tracker.
107 //AliInfo(Form("fOwner[%s]", fOwner?"YES":"NO"));
110 for(int itb=0; itb<knTimebins; itb++){
111 if(!fClusters[itb]) continue;
112 //AliInfo(Form("deleting c %p @ %d", fClusters[itb], itb));
113 delete fClusters[itb];
114 fClusters[itb] = 0x0;
118 //____________________________________________________________________
119 void AliTRDseedV1::Copy(TObject &ref) const
126 AliTRDseedV1 &target = (AliTRDseedV1 &)ref;
128 target.fPlane = fPlane;
134 for(int islice=0; islice < knSlices; islice++) target.fdEdx[islice] = fdEdx[islice];
135 for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) target.fProb[ispec] = fProb[ispec];
137 AliTRDseed::Copy(target);
141 //____________________________________________________________
142 Bool_t AliTRDseedV1::Init(AliTRDtrack *track)
144 // Initialize this tracklet using the track information
147 // track - the TRD track used to initialize the tracklet
149 // Detailed description
150 // The function sets the starting point and direction of the
151 // tracklet according to the information from the TRD track.
154 // The TRD track has to be propagated to the beginning of the
155 // chamber where the tracklet will be constructed
159 if(!track->GetProlongation(fX0, y, z)) return kFALSE;
161 fYref[1] = track->GetSnp()/(1. - track->GetSnp()*track->GetSnp());
163 fZref[1] = track->GetTgl();
165 //printf("Tracklet ref x[%7.3f] y[%7.3f] z[%7.3f], snp[%f] tgl[%f]\n", fX0, fYref[0], fZref[0], track->GetSnp(), track->GetTgl());
170 //____________________________________________________________________
171 void AliTRDseedV1::CookdEdx(Int_t nslices)
173 // Calculates average dE/dx for all slices and store them in the internal array fdEdx.
176 // nslices : number of slices for which dE/dx should be calculated
178 // store results in the internal array fdEdx. This can be accessed with the method
179 // AliTRDseedV1::GetdEdx()
181 // Detailed description
182 // Calculates average dE/dx for all slices. Depending on the PID methode
183 // the number of slices can be 3 (LQ) or 8(NN).
184 // The calculation of dQ/dl are done using the tracklet fit results (see AliTRDseedV1::GetdQdl(Int_t)) i.e.
186 // dQ/dl = qc/(dx * sqrt(1 + dy/dx^2 + dz/dx^2))
188 // The following effects are included in the calculation:
189 // 1. calibration values for t0 and vdrift (using x coordinate to calculate slice)
190 // 2. cluster sharing (optional see AliTRDrecoParam::SetClusterSharing())
194 Int_t nclusters[knSlices];
195 for(int i=0; i<knSlices; i++){
199 Float_t clength = (/*.5 * */AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick());
201 AliTRDcluster *cluster = 0x0;
202 for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++){
203 if(!(cluster = fClusters[ic])) continue;
204 Float_t x = cluster->GetX();
206 // Filter clusters for dE/dx calculation
208 // 1.consider calibration effects for slice determination
210 if(cluster->IsInChamber()) slice = Int_t(TMath::Abs(fX0 - x) * nslices / clength);
211 else slice = x < fX0 ? 0 : nslices-1;
213 // 2. take sharing into account
214 Float_t w = cluster->IsShared() ? .5 : 1.;
216 // 3. take into account large clusters TODO
217 //w *= c->GetNPads() > 3 ? .8 : 1.;
220 fdEdx[slice] += w * GetdQdl(ic); //fdQdl[ic];
222 } // End of loop over clusters
224 if(AliTRDReconstructor::RecoParam()->GetPIDMethod() == 0){
225 // calculate mean charge per slice (only LQ PID)
226 for(int is=0; is<nslices; is++){
227 if(nclusters[is]) fdEdx[is] /= nclusters[is];
233 //____________________________________________________________________
234 Float_t AliTRDseedV1::GetdQdl(Int_t ic) const
236 return fClusters[ic] ? TMath::Abs(fClusters[ic]->GetQ()) /fdX / TMath::Sqrt(1. + fYfit[1]*fYfit[1] + fZref[1]*fZref[1]) : 0.;
239 //____________________________________________________________________
240 Double_t* AliTRDseedV1::GetProbability()
242 // Fill probability array for tracklet from the DB.
247 // returns pointer to the probability array and 0x0 if missing DB access
249 // Detailed description
252 // retrive calibration db
253 AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
255 AliError("No access to calibration data");
259 // Retrieve the CDB container class with the parametric detector response
260 const AliTRDCalPID *pd = calibration->GetPIDObject(AliTRDReconstructor::RecoParam()->GetPIDMethod());
262 AliError("No access to AliTRDCalPID object");
265 //AliInfo(Form("Method[%d] : %s", AliTRDReconstructor::RecoParam()->GetPIDMethod(), pd->IsA()->GetName()));
267 // calculate tracklet length TO DO
268 Float_t length = (AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick());
269 /// TMath::Sqrt((1.0 - fSnp[iPlane]*fSnp[iPlane]) / (1.0 + fTgl[iPlane]*fTgl[iPlane]));
272 CookdEdx(AliTRDReconstructor::RecoParam()->GetNdEdxSlices());
274 // Sets the a priori probabilities
275 for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) {
276 fProb[ispec] = pd->GetProbability(ispec, fMom, &fdEdx[0], length, fPlane);
282 //____________________________________________________________________
283 Float_t AliTRDseedV1::GetQuality(Bool_t kZcorr) const
286 // Returns a quality measurement of the current seed
289 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
291 .5 * TMath::Abs(18.0 - fN2)
292 + 10.* TMath::Abs(fYfit[1] - fYref[1])
293 + 5. * TMath::Abs(fYfit[0] - fYref[0] + zcorr)
294 + 2. * TMath::Abs(fMeanz - fZref[0]) / fPadLength;
297 //____________________________________________________________________
298 void AliTRDseedV1::GetCovAt(Double_t /*x*/, Double_t *cov) const
300 // Computes covariance in the y-z plane at radial point x
302 Int_t ic = 0; while (!fClusters[ic]) ic++;
303 AliTRDcalibDB *fCalib = AliTRDcalibDB::Instance();
304 Double_t exB = fCalib->GetOmegaTau(fCalib->GetVdriftAverage(fClusters[ic]->GetDetector()), -AliTracker::GetBz()*0.1);
306 Double_t sy2 = fSigmaY2*fSigmaY2 + .2*(fYfit[1]-exB)*(fYfit[1]-exB);
307 Double_t sz2 = fPadLength/12.;
310 //printf("Yfit[1] %f sy20 %f SigmaY2 %f\n", fYfit[1], sy20, fSigmaY2);
313 cov[1] = fTilt*(sy2-sz2);
318 //____________________________________________________________________
319 void AliTRDseedV1::SetOwner(Bool_t own)
321 //AliInfo(Form("own [%s] fOwner[%s]", own?"YES":"NO", fOwner?"YES":"NO"));
324 for(int ic=0; ic<knTimebins; ic++){
325 if(!fClusters[ic]) continue;
326 fClusters[ic] = new AliTRDcluster(*fClusters[ic]);
331 for(int ic=0; ic<knTimebins; ic++){
332 if(!fClusters[ic]) continue;
333 delete fClusters[ic];
334 //fClusters[ic] = tracker->GetClusters(index) TODO
341 //____________________________________________________________________
342 Bool_t AliTRDseedV1::AttachClustersIter(AliTRDtrackingChamber *chamber, Float_t quality, Bool_t kZcorr, AliTRDcluster *c)
345 // Iterative process to register clusters to the seed.
346 // In iteration 0 we try only one pad-row and if quality not
347 // sufficient we try 2 pad-rows (about 5% of tracks cross 2 pad-rows)
352 if(!AliTRDReconstructor::RecoParam()){
353 AliError("Seed can not be used without a valid RecoParam.");
357 AliTRDchamberTimeBin *layer = 0x0;
358 if(AliTRDReconstructor::StreamLevel()>=7 && c){
359 TClonesArray clusters("AliTRDcluster", 24);
360 clusters.SetOwner(kTRUE);
361 AliTRDcluster *cc = 0x0;
362 Int_t det=-1, ncl, ncls = 0;
363 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
364 if(!(layer = chamber->GetTB(iTime))) continue;
365 if(!(ncl = Int_t(*layer))) continue;
366 for(int ic=0; ic<ncl; ic++){
368 det = cc->GetDetector();
369 new(clusters[ncls++]) AliTRDcluster(*cc);
372 AliInfo(Form("N clusters[%d] = %d", fPlane, ncls));
374 Int_t ref = c ? 1 : 0;
375 TTreeSRedirector &cstreamer = *AliTRDtrackerV1::DebugStreamer();
376 cstreamer << "AttachClustersIter"
379 << "clusters.=" << &clusters
380 << "tracklet.=" << this
386 Double_t kroady = AliTRDReconstructor::RecoParam()->GetRoad1y();
387 Double_t kroadz = fPadLength * .5 + 1.;
389 // initialize configuration parameters
390 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
391 Int_t niter = kZcorr ? 1 : 2;
396 for (Int_t iter = 0; iter < niter; iter++) {
398 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
399 if(!(layer = chamber->GetTB(iTime))) continue;
400 if(!Int_t(*layer)) continue;
402 // define searching configuration
403 Double_t dxlayer = layer->GetX() - fX0;
406 //Try 2 pad-rows in second iteration
408 zexp = fZref[0] + fZref[1] * dxlayer - zcorr;
409 if (zexp > c->GetZ()) zexp = c->GetZ() + fPadLength*0.5;
410 if (zexp < c->GetZ()) zexp = c->GetZ() - fPadLength*0.5;
412 } else zexp = fZref[0] + (kZcorr ? fZref[1] * dxlayer : 0.);
413 yexp = fYref[0] + fYref[1] * dxlayer - zcorr;
415 // Get and register cluster
416 Int_t index = layer->SearchNearestCluster(yexp, zexp, kroady, kroadz);
417 if (index < 0) continue;
418 AliTRDcluster *cl = (*layer)[index];
420 fIndexes[iTime] = layer->GetGlobalIndex(index);
421 fClusters[iTime] = cl;
422 fY[iTime] = cl->GetY();
423 fZ[iTime] = cl->GetZ();
426 if(AliTRDReconstructor::StreamLevel()>=7) AliInfo(Form("iter = %d ncl [%d] = %d", iter, fPlane, ncl));
429 // calculate length of the time bin (calibration aware)
430 Int_t irp = 0; Float_t x[2]; Int_t tb[2];
431 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
432 if(!fClusters[iTime]) continue;
433 x[irp] = fClusters[iTime]->GetX();
438 fdX = (x[1] - x[0]) / (tb[0] - tb[1]);
440 // update X0 from the clusters (calibration/alignment aware)
441 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
442 if(!(layer = chamber->GetTB(iTime))) continue;
443 if(!layer->IsT0()) continue;
444 if(fClusters[iTime]){
445 fX0 = fClusters[iTime]->GetX();
447 } else { // we have to infere the position of the anode wire from the other clusters
448 for (Int_t jTime = iTime+1; jTime < AliTRDtrackerV1::GetNTimeBins(); jTime++) {
449 if(!fClusters[jTime]) continue;
450 fX0 = fClusters[jTime]->GetX() + fdX * (jTime - iTime);
456 // update YZ reference point
459 // update x reference positions (calibration/alignment aware)
460 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
461 if(!fClusters[iTime]) continue;
462 fX[iTime] = fClusters[iTime]->GetX() - fX0;
465 AliTRDseed::Update();
467 if(AliTRDReconstructor::StreamLevel()>=7) AliInfo(Form("iter = %d nclFit [%d] = %d", iter, fPlane, fN2));
470 tquality = GetQuality(kZcorr);
471 if(tquality < quality) break;
472 else quality = tquality;
476 if (!IsOK()) return kFALSE;
483 //____________________________________________________________________
484 Bool_t AliTRDseedV1::AttachClusters(AliTRDtrackingChamber *chamber
488 // Projective algorithm to attach clusters to seeding tracklets
494 // Detailed description
495 // 1. Collapse x coordinate for the full detector plane
496 // 2. truncated mean on y (r-phi) direction
498 // 4. truncated mean on z direction
503 if(!AliTRDReconstructor::RecoParam()){
504 AliError("Seed can not be used without a valid RecoParam.");
508 const Int_t kClusterCandidates = 2 * knTimebins;
511 Double_t kroady = AliTRDReconstructor::RecoParam()->GetRoad1y();
512 Double_t kroadz = fPadLength * 1.5 + 1.;
513 // correction to y for the tilting angle
514 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
517 AliTRDcluster *clusters[kClusterCandidates];
518 Double_t cond[4], yexp[knTimebins], zexp[knTimebins],
519 yres[kClusterCandidates], zres[kClusterCandidates];
520 Int_t ncl, *index = 0x0, tboundary[knTimebins];
522 // Do cluster projection
523 AliTRDchamberTimeBin *layer = 0x0;
524 Int_t nYclusters = 0; Bool_t kEXIT = kFALSE;
525 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
526 if(!(layer = chamber->GetTB(iTime))) continue;
527 if(!Int_t(*layer)) continue;
529 fX[iTime] = layer->GetX() - fX0;
530 zexp[iTime] = fZref[0] + fZref[1] * fX[iTime];
531 yexp[iTime] = fYref[0] + fYref[1] * fX[iTime] - zcorr;
533 // build condition and process clusters
534 cond[0] = yexp[iTime] - kroady; cond[1] = yexp[iTime] + kroady;
535 cond[2] = zexp[iTime] - kroadz; cond[3] = zexp[iTime] + kroadz;
536 layer->GetClusters(cond, index, ncl);
537 for(Int_t ic = 0; ic<ncl; ic++){
538 AliTRDcluster *c = layer->GetCluster(index[ic]);
539 clusters[nYclusters] = c;
540 yres[nYclusters++] = c->GetY() - yexp[iTime];
541 if(nYclusters >= kClusterCandidates) {
542 AliWarning(Form("Cluster candidates reached limit %d. Some may be lost.", kClusterCandidates));
547 tboundary[iTime] = nYclusters;
551 // Evaluate truncated mean on the y direction
552 Double_t mean, sigma;
553 AliMathBase::EvaluateUni(nYclusters, yres, mean, sigma, Int_t(nYclusters*.8)-2);
554 // purge cluster candidates
555 Int_t nZclusters = 0;
556 for(Int_t ic = 0; ic<nYclusters; ic++){
557 if(yres[ic] - mean > 4. * sigma){
561 zres[nZclusters++] = clusters[ic]->GetZ() - zexp[clusters[ic]->GetLocalTimeBin()];
564 // Evaluate truncated mean on the z direction
565 AliMathBase::EvaluateUni(nZclusters, zres, mean, sigma, Int_t(nZclusters*.8)-2);
566 // purge cluster candidates
567 for(Int_t ic = 0; ic<nZclusters; ic++){
568 if(zres[ic] - mean > 4. * sigma){
575 // Select only one cluster/TimeBin
576 Int_t lastCluster = 0;
578 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
579 ncl = tboundary[iTime] - lastCluster;
581 Int_t iptr = lastCluster;
583 Float_t dold = 9999.;
584 for(int ic=lastCluster; ic<tboundary[iTime]; ic++){
585 if(!clusters[ic]) continue;
586 Float_t y = yexp[iTime] - clusters[ic]->GetY();
587 Float_t z = zexp[iTime] - clusters[ic]->GetZ();
588 Float_t d = y * y + z * z;
589 if(d > dold) continue;
594 fIndexes[iTime] = chamber->GetTB(iTime)->GetGlobalIndex(iptr);
595 fClusters[iTime] = clusters[iptr];
596 fY[iTime] = clusters[iptr]->GetY();
597 fZ[iTime] = clusters[iptr]->GetZ();
598 lastCluster = tboundary[iTime];
602 // number of minimum numbers of clusters expected for the tracklet
603 Int_t kClmin = Int_t(AliTRDReconstructor::RecoParam()->GetFindableClusters()*AliTRDtrackerV1::GetNTimeBins());
605 AliWarning(Form("Not enough clusters to fit the tracklet %d [%d].", fN2, kClmin));
610 // update used clusters
612 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
613 if(!fClusters[iTime]) continue;
614 if((fClusters[iTime]->IsUsed())) fNUsed++;
617 if (fN2-fNUsed < kClmin){
618 AliWarning(Form("Too many clusters already in use %d (from %d).", fNUsed, fN2));
626 //____________________________________________________________________
627 Bool_t AliTRDseedV1::Fit()
630 // Linear fit of the tracklet
635 // True if successful
637 // Detailed description
638 // 2. Check if tracklet crosses pad row boundary
639 // 1. Calculate residuals in the y (r-phi) direction
640 // 3. Do a Least Square Fit to the data
643 const Int_t kClmin = 8;
644 const Int_t kNtb = AliTRDtrackerV1::GetNTimeBins();
645 AliTRDtrackerV1::AliTRDLeastSquare fitterY, fitterZ;
647 // convertion factor from square to gauss distribution for sigma
648 Double_t convert = 1./TMath::Sqrt(12.);
650 // book cluster information
651 Double_t xc[knTimebins+1], yc[knTimebins], zc[knTimebins+1], sy[knTimebins], sz[knTimebins+1];
652 Int_t zRow[knTimebins];
653 AliTRDcluster *c = 0x0;
655 for (Int_t ic=0; ic<kNtb; ic++) {
662 if(!(c = fClusters[ic])) continue;
663 if(!c->IsInChamber()) continue;
665 if(c->GetNPads()>4) w = .5;
666 if(c->GetNPads()>5) w = .2;
667 zRow[nc] = c->GetPadRow();
668 xc[nc] = fX0 - c->GetX();
671 sy[ic] = w; // all clusters have the same sigma
672 sz[ic] = fPadLength*convert;
673 fitterZ.AddPoint(&xc[ic], zc[ic], sz[ic]);
677 if (nc < kClmin) return kFALSE;
681 Int_t nz = AliTRDtrackerV1::Freq(nc, zRow, zN, kFALSE);
682 // more than one pad row crossing
683 if(nz>2) return kFALSE;
685 // estimate reference parameter at average x
686 Double_t y0 = fYref[0];
687 Double_t dydx = fYref[1];
688 Double_t dzdx = fZref[1];
691 // determine z offset of the fit
692 Int_t nchanges = 0, nCross = 0;
693 if(nz==2){ // tracklet is crossing pad row
694 // Find the break time allowing one chage on pad-rows
695 // with maximal number of accepted clusters
696 Int_t padRef = zRow[0];
697 for (Int_t ic=1; ic<nc; ic++) {
698 if(zRow[ic] == padRef) continue;
701 if(zRow[ic-1] == zRow[ic]){
702 printf("ERROR in pad row change!!!\n");
705 // evaluate parameters of the crossing point
706 Float_t sx = (xc[ic-1] - xc[ic])*convert;
707 xc[nc] = .5 * (xc[ic-1] + xc[ic]);
708 zc[nc] = .5 * (zc[ic-1] + zc[ic]);
709 sz[nc] = TMath::Max(dzdx * sx, .01);
710 dzdx = zc[ic-1] > zc[ic] ? 1. : -1.;
717 // condition on nCross and reset nchanges TODO
720 if(dzdx * fZref[1] < 0.){
721 AliInfo("tracklet direction does not correspond to the track direction. TODO.");
723 SetBit(2, kTRUE); // mark pad row crossing
724 fCross[0] = xc[nc]; fCross[2] = zc[nc]; fCross[3] = sz[nc];
725 fitterZ.AddPoint(&xc[nc], zc[nc], sz[nc]);
727 dzdx = fZref[1]; // we don't trust Parameter[1] ??;
728 zc[nc] = fitterZ.GetFunctionParameter(0);
729 } else if(nchanges > 1){ // debug
730 AliInfo("ERROR in n changes!!!");
735 // estimate deviation from reference direction
737 for (Int_t ic=0; ic<nc; ic++) {
738 yc[ic] -= y0 + xc[ic]*(dydx + dzdx) + fTilt * (zc[ic] - zc[nc]);
739 fitterY.AddPoint(&xc[ic], yc[ic], sy[ic]);
742 fYfit[0] = y0+fitterY.GetFunctionParameter(0);
743 fYfit[1] = dydx+fitterY.GetFunctionParameter(1);
744 if(nchanges) fCross[1] = fYfit[0] + fCross[0] * fYfit[1];
746 // printf("\nnz = %d\n", nz);
747 // for(int ic=0; ic<35; ic++) printf("%d row[%d]\n", ic, zRow[ic]);
749 // for(int ic=0; ic<nz; ic++) printf("%d n[%d]\n", ic, zN[ic]);
754 //___________________________________________________________________
755 void AliTRDseedV1::Draw(Option_t*)
759 //___________________________________________________________________
760 void AliTRDseedV1::Print(Option_t*) const
763 // Printing the seedstatus
766 printf("Seed status :\n");
767 printf(" fTilt = %f\n", fTilt);
768 printf(" fPadLength = %f\n", fPadLength);
769 printf(" fX0 = %f\n", fX0);
770 for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++) {
771 const Char_t *isUsable = fUsable[ic]?"Yes":"No";
772 printf(" %d X[%f] Y[%f] Z[%f] Indexes[%d] clusters[%p] usable[%s]\n"
778 , ((void*) fClusters[ic])
782 printf(" fYref[0] =%f fYref[1] =%f\n", fYref[0], fYref[1]);
783 printf(" fZref[0] =%f fZref[1] =%f\n", fZref[0], fZref[1]);
784 printf(" fYfit[0] =%f fYfit[1] =%f\n", fYfit[0], fYfit[1]);
785 printf(" fYfitR[0]=%f fYfitR[1]=%f\n", fYfitR[0], fYfitR[1]);
786 printf(" fZfit[0] =%f fZfit[1] =%f\n", fZfit[0], fZfit[1]);
787 printf(" fZfitR[0]=%f fZfitR[1]=%f\n", fZfitR[0], fZfitR[1]);
788 printf(" fSigmaY =%f\n", fSigmaY);
789 printf(" fSigmaY2=%f\n", fSigmaY2);
790 printf(" fMeanz =%f\n", fMeanz);
791 printf(" fZProb =%f\n", fZProb);
792 printf(" fLabels[0]=%d fLabels[1]=%d\n", fLabels[0], fLabels[1]);
793 printf(" fN =%d\n", fN);
794 printf(" fN2 =%d (>8 isOK)\n",fN2);
795 printf(" fNUsed =%d\n", fNUsed);
796 printf(" fFreq =%d\n", fFreq);
797 printf(" fNChange=%d\n", fNChange);
798 printf(" fMPads =%f\n", fMPads);
800 printf(" fC =%f\n", fC);
801 printf(" fCC =%f\n",fCC);
802 printf(" fChi2 =%f\n", fChi2);
803 printf(" fChi2Z =%f\n", fChi2Z);