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 "AliTRDcluster.h"
37 #include "AliTRDseedV1.h"
38 #include "AliTRDtrackV1.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(AliTRDtrackV1 *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() == AliTRDrecoParam::kLQPID){
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 AliTRDrecoParam *rec = AliTRDReconstructor::RecoParam();
261 AliError("No TRD reco param.");
265 // Retrieve the CDB container class with the parametric detector response
266 const AliTRDCalPID *pd = calibration->GetPIDObject(rec->GetPIDMethod());
268 AliError("No access to AliTRDCalPID object");
271 //AliInfo(Form("Method[%d] : %s", AliTRDReconstructor::RecoParam()->GetPIDMethod(), pd->IsA()->GetName()));
273 // calculate tracklet length TO DO
274 Float_t length = (AliTRDgeometry::AmThick() + AliTRDgeometry::DrThick());
275 /// TMath::Sqrt((1.0 - fSnp[iPlane]*fSnp[iPlane]) / (1.0 + fTgl[iPlane]*fTgl[iPlane]));
278 CookdEdx(rec->GetNdEdxSlices());
280 // Sets the a priori probabilities
281 for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) {
282 fProb[ispec] = pd->GetProbability(ispec, fMom, &fdEdx[0], length, fPlane);
288 //____________________________________________________________________
289 Float_t AliTRDseedV1::GetQuality(Bool_t kZcorr) const
292 // Returns a quality measurement of the current seed
295 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
297 .5 * TMath::Abs(18.0 - fN2)
298 + 10.* TMath::Abs(fYfit[1] - fYref[1])
299 + 5. * TMath::Abs(fYfit[0] - fYref[0] + zcorr)
300 + 2. * TMath::Abs(fMeanz - fZref[0]) / fPadLength;
303 //____________________________________________________________________
304 void AliTRDseedV1::GetCovAt(Double_t /*x*/, Double_t *cov) const
306 // Computes covariance in the y-z plane at radial point x
308 Int_t ic = 0; while (!fClusters[ic]) ic++;
309 AliTRDcalibDB *fCalib = AliTRDcalibDB::Instance();
310 Double_t exB = fCalib->GetOmegaTau(fCalib->GetVdriftAverage(fClusters[ic]->GetDetector()), -AliTracker::GetBz()*0.1);
312 Double_t sy2 = fSigmaY2*fSigmaY2 + .2*(fYfit[1]-exB)*(fYfit[1]-exB);
313 Double_t sz2 = fPadLength/12.;
316 //printf("Yfit[1] %f sy20 %f SigmaY2 %f\n", fYfit[1], sy20, fSigmaY2);
319 cov[1] = fTilt*(sy2-sz2);
324 //____________________________________________________________________
325 void AliTRDseedV1::SetOwner(Bool_t own)
327 //AliInfo(Form("own [%s] fOwner[%s]", own?"YES":"NO", fOwner?"YES":"NO"));
330 for(int ic=0; ic<knTimebins; ic++){
331 if(!fClusters[ic]) continue;
332 fClusters[ic] = new AliTRDcluster(*fClusters[ic]);
337 for(int ic=0; ic<knTimebins; ic++){
338 if(!fClusters[ic]) continue;
339 delete fClusters[ic];
340 //fClusters[ic] = tracker->GetClusters(index) TODO
347 //____________________________________________________________________
348 Bool_t AliTRDseedV1::AttachClustersIter(AliTRDtrackingChamber *chamber, Float_t quality, Bool_t kZcorr, AliTRDcluster *c)
351 // Iterative process to register clusters to the seed.
352 // In iteration 0 we try only one pad-row and if quality not
353 // sufficient we try 2 pad-rows (about 5% of tracks cross 2 pad-rows)
358 if(!AliTRDReconstructor::RecoParam()){
359 AliError("Seed can not be used without a valid RecoParam.");
363 AliTRDchamberTimeBin *layer = 0x0;
364 if(AliTRDReconstructor::RecoParam()->GetStreamLevel()>=7 && c){
365 TClonesArray clusters("AliTRDcluster", 24);
366 clusters.SetOwner(kTRUE);
367 AliTRDcluster *cc = 0x0;
368 Int_t det=-1, ncl, ncls = 0;
369 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
370 if(!(layer = chamber->GetTB(iTime))) continue;
371 if(!(ncl = Int_t(*layer))) continue;
372 for(int ic=0; ic<ncl; ic++){
374 det = cc->GetDetector();
375 new(clusters[ncls++]) AliTRDcluster(*cc);
378 AliInfo(Form("N clusters[%d] = %d", fPlane, ncls));
380 Int_t ref = c ? 1 : 0;
381 TTreeSRedirector &cstreamer = *AliTRDtrackerV1::DebugStreamer();
382 cstreamer << "AttachClustersIter"
385 << "clusters.=" << &clusters
386 << "tracklet.=" << this
392 Double_t kroady = AliTRDReconstructor::RecoParam()->GetRoad1y();
393 Double_t kroadz = fPadLength * .5 + 1.;
395 // initialize configuration parameters
396 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
397 Int_t niter = kZcorr ? 1 : 2;
402 for (Int_t iter = 0; iter < niter; iter++) {
404 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
405 if(!(layer = chamber->GetTB(iTime))) continue;
406 if(!Int_t(*layer)) continue;
408 // define searching configuration
409 Double_t dxlayer = layer->GetX() - fX0;
412 //Try 2 pad-rows in second iteration
414 zexp = fZref[0] + fZref[1] * dxlayer - zcorr;
415 if (zexp > c->GetZ()) zexp = c->GetZ() + fPadLength*0.5;
416 if (zexp < c->GetZ()) zexp = c->GetZ() - fPadLength*0.5;
418 } else zexp = fZref[0] + (kZcorr ? fZref[1] * dxlayer : 0.);
419 yexp = fYref[0] + fYref[1] * dxlayer - zcorr;
421 // Get and register cluster
422 Int_t index = layer->SearchNearestCluster(yexp, zexp, kroady, kroadz);
423 if (index < 0) continue;
424 AliTRDcluster *cl = (*layer)[index];
426 fIndexes[iTime] = layer->GetGlobalIndex(index);
427 fClusters[iTime] = cl;
428 fY[iTime] = cl->GetY();
429 fZ[iTime] = cl->GetZ();
432 if(AliTRDReconstructor::RecoParam()->GetStreamLevel()>=7) AliInfo(Form("iter = %d ncl [%d] = %d", iter, fPlane, ncl));
435 // calculate length of the time bin (calibration aware)
436 Int_t irp = 0; Float_t x[2]; Int_t tb[2];
437 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
438 if(!fClusters[iTime]) continue;
439 x[irp] = fClusters[iTime]->GetX();
444 fdX = (x[1] - x[0]) / (tb[0] - tb[1]);
446 // update X0 from the clusters (calibration/alignment aware)
447 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
448 if(!(layer = chamber->GetTB(iTime))) continue;
449 if(!layer->IsT0()) continue;
450 if(fClusters[iTime]){
451 fX0 = fClusters[iTime]->GetX();
453 } else { // we have to infere the position of the anode wire from the other clusters
454 for (Int_t jTime = iTime+1; jTime < AliTRDtrackerV1::GetNTimeBins(); jTime++) {
455 if(!fClusters[jTime]) continue;
456 fX0 = fClusters[jTime]->GetX() + fdX * (jTime - iTime);
462 // update YZ reference point
465 // update x reference positions (calibration/alignment aware)
466 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
467 if(!fClusters[iTime]) continue;
468 fX[iTime] = fClusters[iTime]->GetX() - fX0;
471 AliTRDseed::Update();
473 if(AliTRDReconstructor::RecoParam()->GetStreamLevel()>=7) AliInfo(Form("iter = %d nclFit [%d] = %d", iter, fPlane, fN2));
476 tquality = GetQuality(kZcorr);
477 if(tquality < quality) break;
478 else quality = tquality;
482 if (!IsOK()) return kFALSE;
489 //____________________________________________________________________
490 Bool_t AliTRDseedV1::AttachClusters(AliTRDtrackingChamber *chamber
494 // Projective algorithm to attach clusters to seeding tracklets
500 // Detailed description
501 // 1. Collapse x coordinate for the full detector plane
502 // 2. truncated mean on y (r-phi) direction
504 // 4. truncated mean on z direction
509 if(!AliTRDReconstructor::RecoParam()){
510 AliError("Seed can not be used without a valid RecoParam.");
514 const Int_t kClusterCandidates = 2 * knTimebins;
517 Double_t kroady = AliTRDReconstructor::RecoParam()->GetRoad1y();
518 Double_t kroadz = fPadLength * 1.5 + 1.;
519 // correction to y for the tilting angle
520 Float_t zcorr = kZcorr ? fTilt * (fZProb - fZref[0]) : 0.;
523 AliTRDcluster *clusters[kClusterCandidates];
524 Double_t cond[4], yexp[knTimebins], zexp[knTimebins],
525 yres[kClusterCandidates], zres[kClusterCandidates];
526 Int_t ncl, *index = 0x0, tboundary[knTimebins];
528 // Do cluster projection
529 AliTRDchamberTimeBin *layer = 0x0;
530 Int_t nYclusters = 0; Bool_t kEXIT = kFALSE;
531 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
532 if(!(layer = chamber->GetTB(iTime))) continue;
533 if(!Int_t(*layer)) continue;
535 fX[iTime] = layer->GetX() - fX0;
536 zexp[iTime] = fZref[0] + fZref[1] * fX[iTime];
537 yexp[iTime] = fYref[0] + fYref[1] * fX[iTime] - zcorr;
539 // build condition and process clusters
540 cond[0] = yexp[iTime] - kroady; cond[1] = yexp[iTime] + kroady;
541 cond[2] = zexp[iTime] - kroadz; cond[3] = zexp[iTime] + kroadz;
542 layer->GetClusters(cond, index, ncl);
543 for(Int_t ic = 0; ic<ncl; ic++){
544 AliTRDcluster *c = layer->GetCluster(index[ic]);
545 clusters[nYclusters] = c;
546 yres[nYclusters++] = c->GetY() - yexp[iTime];
547 if(nYclusters >= kClusterCandidates) {
548 AliWarning(Form("Cluster candidates reached limit %d. Some may be lost.", kClusterCandidates));
553 tboundary[iTime] = nYclusters;
557 // Evaluate truncated mean on the y direction
558 Double_t mean, sigma;
559 AliMathBase::EvaluateUni(nYclusters, yres, mean, sigma, Int_t(nYclusters*.8)-2);
560 // purge cluster candidates
561 Int_t nZclusters = 0;
562 for(Int_t ic = 0; ic<nYclusters; ic++){
563 if(yres[ic] - mean > 4. * sigma){
567 zres[nZclusters++] = clusters[ic]->GetZ() - zexp[clusters[ic]->GetLocalTimeBin()];
570 // Evaluate truncated mean on the z direction
571 AliMathBase::EvaluateUni(nZclusters, zres, mean, sigma, Int_t(nZclusters*.8)-2);
572 // purge cluster candidates
573 for(Int_t ic = 0; ic<nZclusters; ic++){
574 if(zres[ic] - mean > 4. * sigma){
581 // Select only one cluster/TimeBin
582 Int_t lastCluster = 0;
584 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
585 ncl = tboundary[iTime] - lastCluster;
587 Int_t iptr = lastCluster;
589 Float_t dold = 9999.;
590 for(int ic=lastCluster; ic<tboundary[iTime]; ic++){
591 if(!clusters[ic]) continue;
592 Float_t y = yexp[iTime] - clusters[ic]->GetY();
593 Float_t z = zexp[iTime] - clusters[ic]->GetZ();
594 Float_t d = y * y + z * z;
595 if(d > dold) continue;
600 fIndexes[iTime] = chamber->GetTB(iTime)->GetGlobalIndex(iptr);
601 fClusters[iTime] = clusters[iptr];
602 fY[iTime] = clusters[iptr]->GetY();
603 fZ[iTime] = clusters[iptr]->GetZ();
604 lastCluster = tboundary[iTime];
608 // number of minimum numbers of clusters expected for the tracklet
609 Int_t kClmin = Int_t(AliTRDReconstructor::RecoParam()->GetFindableClusters()*AliTRDtrackerV1::GetNTimeBins());
611 AliWarning(Form("Not enough clusters to fit the tracklet %d [%d].", fN2, kClmin));
616 // update used clusters
618 for (Int_t iTime = 0; iTime < AliTRDtrackerV1::GetNTimeBins(); iTime++) {
619 if(!fClusters[iTime]) continue;
620 if((fClusters[iTime]->IsUsed())) fNUsed++;
623 if (fN2-fNUsed < kClmin){
624 AliWarning(Form("Too many clusters already in use %d (from %d).", fNUsed, fN2));
632 //____________________________________________________________________
633 Bool_t AliTRDseedV1::Fit()
636 // Linear fit of the tracklet
641 // True if successful
643 // Detailed description
644 // 2. Check if tracklet crosses pad row boundary
645 // 1. Calculate residuals in the y (r-phi) direction
646 // 3. Do a Least Square Fit to the data
649 const Int_t kClmin = 8;
650 const Int_t kNtb = AliTRDtrackerV1::GetNTimeBins();
651 AliTRDtrackerV1::AliTRDLeastSquare fitterY, fitterZ;
653 // convertion factor from square to gauss distribution for sigma
654 Double_t convert = 1./TMath::Sqrt(12.);
656 // book cluster information
657 Double_t xc[knTimebins+1], yc[knTimebins], zc[knTimebins+1], sy[knTimebins], sz[knTimebins+1];
658 Int_t zRow[knTimebins];
659 AliTRDcluster *c = 0x0;
661 for (Int_t ic=0; ic<kNtb; ic++) {
668 if(!(c = fClusters[ic])) continue;
669 if(!c->IsInChamber()) continue;
671 if(c->GetNPads()>4) w = .5;
672 if(c->GetNPads()>5) w = .2;
673 zRow[nc] = c->GetPadRow();
674 xc[nc] = fX0 - c->GetX();
677 sy[ic] = w; // all clusters have the same sigma
678 sz[ic] = fPadLength*convert;
679 fitterZ.AddPoint(&xc[ic], zc[ic], sz[ic]);
683 if (nc < kClmin) return kFALSE;
687 Int_t nz = AliTRDtrackerV1::Freq(nc, zRow, zN, kFALSE);
688 // more than one pad row crossing
689 if(nz>2) return kFALSE;
691 // estimate reference parameter at average x
692 Double_t y0 = fYref[0];
693 Double_t dydx = fYref[1];
694 Double_t dzdx = fZref[1];
697 // determine z offset of the fit
698 Int_t nchanges = 0, nCross = 0;
699 if(nz==2){ // tracklet is crossing pad row
700 // Find the break time allowing one chage on pad-rows
701 // with maximal number of accepted clusters
702 Int_t padRef = zRow[0];
703 for (Int_t ic=1; ic<nc; ic++) {
704 if(zRow[ic] == padRef) continue;
707 if(zRow[ic-1] == zRow[ic]){
708 printf("ERROR in pad row change!!!\n");
711 // evaluate parameters of the crossing point
712 Float_t sx = (xc[ic-1] - xc[ic])*convert;
713 xc[nc] = .5 * (xc[ic-1] + xc[ic]);
714 zc[nc] = .5 * (zc[ic-1] + zc[ic]);
715 sz[nc] = TMath::Max(dzdx * sx, .01);
716 dzdx = zc[ic-1] > zc[ic] ? 1. : -1.;
723 // condition on nCross and reset nchanges TODO
726 if(dzdx * fZref[1] < 0.){
727 AliInfo("tracklet direction does not correspond to the track direction. TODO.");
729 SetBit(2, kTRUE); // mark pad row crossing
730 fCross[0] = xc[nc]; fCross[2] = zc[nc]; fCross[3] = sz[nc];
731 fitterZ.AddPoint(&xc[nc], zc[nc], sz[nc]);
733 dzdx = fZref[1]; // we don't trust Parameter[1] ??;
734 zc[nc] = fitterZ.GetFunctionParameter(0);
735 } else if(nchanges > 1){ // debug
736 AliInfo("ERROR in n changes!!!");
741 // estimate deviation from reference direction
743 for (Int_t ic=0; ic<nc; ic++) {
744 yc[ic] -= y0 + xc[ic]*(dydx + dzdx) + fTilt * (zc[ic] - zc[nc]);
745 fitterY.AddPoint(&xc[ic], yc[ic], sy[ic]);
748 fYfit[0] = y0+fitterY.GetFunctionParameter(0);
749 fYfit[1] = dydx+fitterY.GetFunctionParameter(1);
750 if(nchanges) fCross[1] = fYfit[0] + fCross[0] * fYfit[1];
752 // printf("\nnz = %d\n", nz);
753 // for(int ic=0; ic<35; ic++) printf("%d row[%d]\n", ic, zRow[ic]);
755 // for(int ic=0; ic<nz; ic++) printf("%d n[%d]\n", ic, zN[ic]);
760 //___________________________________________________________________
761 void AliTRDseedV1::Draw(Option_t*)
765 //___________________________________________________________________
766 void AliTRDseedV1::Print(Option_t*) const
769 // Printing the seedstatus
772 printf("Seed status :\n");
773 printf(" fTilt = %f\n", fTilt);
774 printf(" fPadLength = %f\n", fPadLength);
775 printf(" fX0 = %f\n", fX0);
776 for(int ic=0; ic<AliTRDtrackerV1::GetNTimeBins(); ic++) {
777 const Char_t *isUsable = fUsable[ic]?"Yes":"No";
778 printf(" %d X[%f] Y[%f] Z[%f] Indexes[%d] clusters[%p] usable[%s]\n"
784 , ((void*) fClusters[ic])
788 printf(" fYref[0] =%f fYref[1] =%f\n", fYref[0], fYref[1]);
789 printf(" fZref[0] =%f fZref[1] =%f\n", fZref[0], fZref[1]);
790 printf(" fYfit[0] =%f fYfit[1] =%f\n", fYfit[0], fYfit[1]);
791 printf(" fYfitR[0]=%f fYfitR[1]=%f\n", fYfitR[0], fYfitR[1]);
792 printf(" fZfit[0] =%f fZfit[1] =%f\n", fZfit[0], fZfit[1]);
793 printf(" fZfitR[0]=%f fZfitR[1]=%f\n", fZfitR[0], fZfitR[1]);
794 printf(" fSigmaY =%f\n", fSigmaY);
795 printf(" fSigmaY2=%f\n", fSigmaY2);
796 printf(" fMeanz =%f\n", fMeanz);
797 printf(" fZProb =%f\n", fZProb);
798 printf(" fLabels[0]=%d fLabels[1]=%d\n", fLabels[0], fLabels[1]);
799 printf(" fN =%d\n", fN);
800 printf(" fN2 =%d (>8 isOK)\n",fN2);
801 printf(" fNUsed =%d\n", fNUsed);
802 printf(" fFreq =%d\n", fFreq);
803 printf(" fNChange=%d\n", fNChange);
804 printf(" fMPads =%f\n", fMPads);
806 printf(" fC =%f\n", fC);
807 printf(" fCC =%f\n",fCC);
808 printf(" fChi2 =%f\n", fChi2);
809 printf(" fChi2Z =%f\n", fChi2Z);