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#include "RecoTracker/TransientTrackingRecHit/interface/TSiStripMatchedRecHit.h"
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#include "DataFormats/TrackerRecHit2D/interface/SiStripMatchedRecHit2D.h"
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#include "DataFormats/TrackerRecHit2D/interface/SiStripRecHit2D.h"
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#include "RecoLocalTracker/SiStripRecHitConverter/interface/SiStripRecHitMatcher.h"
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#include "Geometry/TrackerGeometryBuilder/interface/GluedGeomDet.h"
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//#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "RecoTracker/TransientTrackingRecHit/interface/TSiStripRecHit2DLocalPos.h"
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#undef RecoTracker_TransientTrackingRecHit_TSiStripMatchedRecHit_RefitProj
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#undef RecoTracker_TransientTrackingRecHit_TSiStripMatchedRecHit_RefitLGL
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#ifdef RecoTracker_TransientTrackingRecHit_TSiStripMatchedRecHit_RefitLGL
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// Local lo Global lo Local
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inline LocalTrajectoryParameters gluedToStereo(const TrajectoryStateOnSurface &tsos, const GluedGeomDet *gdet) {
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const BoundPlane &stripPlane = gdet->stereoDet()->surface();
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LocalPoint lp = stripPlane.toLocal(tsos.globalPosition());
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LocalVector ld = stripPlane.toLocal(tsos.globalParameters().momentum());
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return LocalTrajectoryParameters(lp,ld,tsos.charge());
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}
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#elif defined(RecoTracker_TransientTrackingRecHit_TSiStripMatchedRecHit_RefitProj)
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// A la RecHitProjector
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inline LocalTrajectoryParameters gluedToStereo(const TrajectoryStateOnSurface &tsos, const GluedGeomDet *gdet) {
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const BoundPlane &stripPlane = gdet->stereoDet()->surface();
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double delta = stripPlane.localZ( tsos.globalPosition());
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LocalVector ld = stripPlane.toLocal(tsos.globalParameters().momentum());
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LocalPoint lp = stripPlane.toLocal(tsos.globalPosition()) - ld*delta/ld.z();
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return LocalTrajectoryParameters(lp,ld,tsos.charge());
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}
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#else
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// Dummy
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inline const LocalTrajectoryParameters & gluedToStereo(const TrajectoryStateOnSurface &tsos, const GluedGeomDet *gdet) {
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return tsos.localParameters();
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}
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#endif
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TSiStripMatchedRecHit::RecHitPointer
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TSiStripMatchedRecHit::clone( const TrajectoryStateOnSurface& ts) const
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{
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if (theMatcher != 0) {
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const SiStripMatchedRecHit2D *orig = static_cast<const SiStripMatchedRecHit2D *> (this->hit());
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const GeomDet *det = this->det();
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const GluedGeomDet *gdet = static_cast<const GluedGeomDet *> (det);
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//if ((orig == 0) || (gdet == 0)) return this->clone(); // or just die ?
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LocalVector tkDir = (ts.isValid() ? ts.localDirection() :
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det->surface().toLocal( det->position()-GlobalPoint(0,0,0)));
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if(theCPE != 0){
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//approximation: the ts parameter on the glued surface are used on the mono
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// and stereo surface to re-evaluate cluster parameter. A further propagation
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//is slow// and useless (?) in this case.
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const SiStripMatchedRecHit2D* better;
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if(!orig->monoHit()->cluster().isNull()){
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const SiStripCluster& monoclust = *orig->monoHit()->cluster();
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const SiStripCluster& stereoclust = *orig->stereoHit()->cluster();
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StripClusterParameterEstimator::LocalValues lvMono =
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theCPE->localParameters( monoclust, *gdet->monoDet(), ts);
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StripClusterParameterEstimator::LocalValues lvStereo =
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theCPE->localParameters( stereoclust, *gdet->stereoDet(), gluedToStereo(ts, gdet));
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SiStripRecHit2D monoHit = SiStripRecHit2D( lvMono.first, lvMono.second,
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gdet->monoDet()->geographicalId(),
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orig->monoHit()->cluster());
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SiStripRecHit2D stereoHit = SiStripRecHit2D( lvStereo.first, lvStereo.second,
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gdet->stereoDet()->geographicalId(),
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orig->stereoHit()->cluster());
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better = theMatcher->match(&monoHit,&stereoHit,gdet,tkDir);
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}else{
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const SiStripCluster& monoclust = *orig->monoHit()->cluster_regional();
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const SiStripCluster& stereoclust = *orig->stereoHit()->cluster_regional();
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StripClusterParameterEstimator::LocalValues lvMono =
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theCPE->localParameters( monoclust, *gdet->monoDet(), ts);
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StripClusterParameterEstimator::LocalValues lvStereo =
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theCPE->localParameters( stereoclust, *gdet->stereoDet(), gluedToStereo(ts, gdet));
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SiStripRecHit2D monoHit = SiStripRecHit2D( lvMono.first, lvMono.second,
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gdet->monoDet()->geographicalId(),
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orig->monoHit()->cluster_regional());
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SiStripRecHit2D stereoHit = SiStripRecHit2D( lvStereo.first, lvStereo.second,
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gdet->stereoDet()->geographicalId(),
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orig->stereoHit()->cluster_regional());
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better = theMatcher->match(&monoHit,&stereoHit,gdet,tkDir);
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}
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if (better == 0) {
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//dm::LogWarning("TSiStripMatchedRecHit") << "Refitting of a matched rechit returns NULL";
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return this->clone();
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}
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return RecHitPointer(new TSiStripMatchedRecHit( gdet, better, theMatcher,theCPE, weight(), getAnnealingFactor(), false, DontCloneRecHit()));
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// delete better; //the ownership of the object is passed to the caller of the matcher
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}else{
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const SiStripMatchedRecHit2D *better = theMatcher->match(orig,gdet,tkDir);
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if (better == 0) {
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//edm::LogWarning("TSiStripMatchedRecHit") << "Refitting of a matched rechit returns NULL";
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return this->clone();
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}
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return RecHitPointer(new TSiStripMatchedRecHit( gdet, better, theMatcher,theCPE, weight(), getAnnealingFactor(), false, DontCloneRecHit()));
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// delete better; //the ownership of the object is passed to the caller of the matcher
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}
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}
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return this->clone();
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}
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TransientTrackingRecHit::ConstRecHitContainer
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TSiStripMatchedRecHit::transientHits () const {
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ConstRecHitContainer result;
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const GluedGeomDet *gdet = static_cast<const GluedGeomDet *> (this->det());
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const SiStripMatchedRecHit2D *orig = static_cast<const SiStripMatchedRecHit2D *> (this->hit());
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result.push_back(TSiStripRecHit2DLocalPos::build( gdet->monoDet(),orig->monoHit(),theCPE));
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result.push_back(TSiStripRecHit2DLocalPos::build( gdet->stereoDet(),orig->stereoHit(),theCPE));
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return result;
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}
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