#include <SiStripRecHitMatcher.h>

Public Types
typedef boost::function< void(SiStripMatchedRecHit2D const &)>	Collector

typedef SiStripMatchedRecHit2DCollectionNew::FastFiller	CollectorMatched

typedef SiStripRecHit2DCollectionNew::DetSet::const_iterator	RecHitIterator

typedef std::vector< const SiStripRecHit2D * >	SimpleHitCollection

typedef SimpleHitCollection::const_iterator	SimpleHitIterator

typedef std::pair< LocalPoint, LocalPoint >	StripPosition

Public Member Functions
template<typename MonoIterator , typename StereoIterator , typename CollectorHelper >
void	doubleMatch (MonoIterator monoRHiter, MonoIterator monoRHend, StereoIterator seconditer, StereoIterator seconditerend, const GluedGeomDet *gluedDet, LocalVector trdir, CollectorHelper &collectorHelper) const

std::unique_ptr< SiStripMatchedRecHit2D >	match (const SiStripRecHit2D monoRH, const SiStripRecHit2D stereoRH, const GluedGeomDet *gluedDet, LocalVector trackdirection, bool force) const

void	match (const SiStripRecHit2D monoRH, RecHitIterator begin, RecHitIterator end, CollectorMatched &collector, const GluedGeomDet gluedDet, LocalVector trackdirection) const

void	match (const SiStripRecHit2D monoRH, SimpleHitIterator begin, SimpleHitIterator end, CollectorMatched &collector, const GluedGeomDet gluedDet, LocalVector trackdirection) const

void	match (const SiStripRecHit2D monoRH, SimpleHitIterator begin, SimpleHitIterator end, edm::OwnVector< SiStripMatchedRecHit2D > &collector, const GluedGeomDet gluedDet, LocalVector trackdirection) const

void	match (const SiStripRecHit2D monoRH, SimpleHitIterator begin, SimpleHitIterator end, std::vector< SiStripMatchedRecHit2D > &collector, const GluedGeomDet *gluedDet, LocalVector trackdirection) const

void	match (const SiStripRecHit2D monoRH, SimpleHitIterator begin, SimpleHitIterator end, Collector &collector, const GluedGeomDet gluedDet, LocalVector trackdirection) const
	the actual implementation More...

bool	preFilter () const

StripPosition	project (const GeomDetUnit det, const GluedGeomDet glueddet, StripPosition strip, LocalVector trackdirection) const

	SiStripRecHitMatcher (const edm::ParameterSet &conf)

	SiStripRecHitMatcher (const double theScale)

Static Public Member Functions
static float	sigmaPitch (LocalPoint const &pos, LocalError const &err, const StripTopology &topol)

Public Attributes
bool	preFilter_ =false

float	scale_

Detailed Description

Definition at line 26 of file SiStripRecHitMatcher.h.

Member Typedef Documentation

typedef boost::function<void(SiStripMatchedRecHit2D const&)> SiStripRecHitMatcher::Collector

Definition at line 36 of file SiStripRecHitMatcher.h.

typedef SiStripMatchedRecHit2DCollectionNew::FastFiller SiStripRecHitMatcher::CollectorMatched

Definition at line 30 of file SiStripRecHitMatcher.h.

typedef SiStripRecHit2DCollectionNew::DetSet::const_iterator SiStripRecHitMatcher::RecHitIterator

Definition at line 32 of file SiStripRecHitMatcher.h.

typedef std::vector<const SiStripRecHit2D *> SiStripRecHitMatcher::SimpleHitCollection

Definition at line 33 of file SiStripRecHitMatcher.h.

typedef SimpleHitCollection::const_iterator SiStripRecHitMatcher::SimpleHitIterator

Definition at line 34 of file SiStripRecHitMatcher.h.

typedef std::pair<LocalPoint,LocalPoint> SiStripRecHitMatcher::StripPosition

Definition at line 39 of file SiStripRecHitMatcher.h.

Constructor & Destructor Documentation

SiStripRecHitMatcher::SiStripRecHitMatcher ( const edm::ParameterSet & conf )

Definition at line 18 of file SiStripRecHitMatcher.cc.

                                                                      :
   scale_(conf.getParameter<double>("NSigmaInside")),
   preFilter_(conf.existsAs<bool>("PreFilter") ? conf.getParameter<bool>("PreFilter") : false)  
   {}

SiStripRecHitMatcher::SiStripRecHitMatcher ( const double theScale )

Definition at line 23 of file SiStripRecHitMatcher.cc.

References edmNew::DetSetVector< T >::FastFiller::push_back(), and findQualityFiles::v.

23 :

24 scale_(theScale){}

SiStripRecHitMatcher::scale_

float scale_

Definition: SiStripRecHitMatcher.h:123

Member Function Documentation

template<typename MonoIterator , typename StereoIterator , typename CollectorHelper >

void SiStripRecHitMatcher::doubleMatch	(	MonoIterator	monoRHiter,
		MonoIterator	monoRHend,
		StereoIterator	seconditer,
		StereoIterator	seconditerend,
		const GluedGeomDet *	gluedDet,
		LocalVector	trdir,
		CollectorHelper &	collectorHelper
	)		const

Referenced by SiStripRecHitConverterAlgorithm::match(), and sigmaPitch().

std::unique_ptr< SiStripMatchedRecHit2D > SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		const SiStripRecHit2D *	stereoRH,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection,
		bool	force
	)		const

Definition at line 269 of file SiStripRecHitMatcher.cc.

References EnergyCorrector::c, fftjetpileupestimator_calo_uncalib_cfi::c0, alignmentValidation::c1, mps_update::diff, relativeConstraints::error, f, objects.autophobj::float, StripTopology::localPosition(), BaseTrackerRecHit::localPosition(), BaseTrackerRecHit::localPositionError(), BaseTrackerRecHit::localPositionFast(), funct::m, PV3DBase< T, PVType, FrameType >::mag2(), Topology::measurementPosition(), GluedGeomDet::monoDet(), position, project(), indexGen::s2, scale_, sigmaPitch(), GluedGeomDet::stereoDet(), GeomDet::surface(), toLocal(), GeomDet::topology(), x, geometryCSVtoXML::xx, geometryCSVtoXML::xy, and geometryCSVtoXML::yy.

Referenced by TkGluedMeasurementDet::collectRecHits(), SiStripRecHitConverterAlgorithm::match(), match(), TkClonerImpl::operator()(), and sigmaPitch().

                                                               {
   // stripdet = mono
   // partnerstripdet = stereo
   const GeomDetUnit* stripdet = gluedDet->monoDet();
   const GeomDetUnit* partnerstripdet = gluedDet->stereoDet();
   const StripTopology& topol=(const StripTopology&)stripdet->topology();
 
   // position of the initial and final point of the strip (RPHI cluster) in local strip coordinates
   auto RPHIpointX = topol.measurementPosition(monoRH->localPositionFast()).x();
   MeasurementPoint RPHIpointini(RPHIpointX,-0.5f);
   MeasurementPoint RPHIpointend(RPHIpointX,0.5f);
 
   // position of the initial and final point of the strip in local coordinates (mono det)
   StripPosition stripmono=StripPosition(topol.localPosition(RPHIpointini),topol.localPosition(RPHIpointend));
 
   if(trackdirection.mag2()<float(FLT_MIN)){// in case of no track hypothesis assume a track from the origin through the center of the strip
     LocalPoint lcenterofstrip=monoRH->localPositionFast();
     GlobalPoint gcenterofstrip=(stripdet->surface()).toGlobal(lcenterofstrip);
     GlobalVector gtrackdirection=gcenterofstrip-GlobalPoint(0,0,0);
     trackdirection=(gluedDet->surface()).toLocal(gtrackdirection);
   }
 
   //project mono hit on glued det
   StripPosition projectedstripmono=project(stripdet,gluedDet,stripmono,trackdirection);
   const StripTopology& partnertopol=(const StripTopology&)partnerstripdet->topology();
 
   double m00 = -(projectedstripmono.second.y()-projectedstripmono.first.y()); 
   double m01 =  (projectedstripmono.second.x()-projectedstripmono.first.x());
   double c0  =  m01*projectedstripmono.first.y()   + m00*projectedstripmono.first.x();
  
   //error calculation (the part that depends on mono RH only)
   //  LocalVector  RPHIpositiononGluedendvector=projectedstripmono.second-projectedstripmono.first;
   /*
   double l1 = 1./RPHIpositiononGluedendvector.perp2();
   double c1 = RPHIpositiononGluedendvector.y();
   double s1 =-RPHIpositiononGluedendvector.x();
   */
   double c1 = -m00;
   double s1 = -m01;
   double l1 = 1./(c1*c1+s1*s1);
 
 
   double sigmap12 = sigmaPitch(monoRH->localPosition(), monoRH->localPositionError(),topol);
   // auto sigmap12 = monoRH->sigmaPitch();
   // assert(sigmap12>=0);
 
 
 
 
     // position of the initial and final point of the strip (STEREO cluster)
   auto STEREOpointX=partnertopol.measurementPosition(stereoRH->localPositionFast()).x();
   MeasurementPoint STEREOpointini(STEREOpointX,-0.5f);
   MeasurementPoint STEREOpointend(STEREOpointX,0.5f);
   
   // position of the initial and final point of the strip in local coordinates (stereo det)
   StripPosition stripstereo(partnertopol.localPosition(STEREOpointini),partnertopol.localPosition(STEREOpointend));
   
   //project stereo hit on glued det
   StripPosition projectedstripstereo=project(partnerstripdet,gluedDet,stripstereo,trackdirection);
   
   
   double m10=-(projectedstripstereo.second.y()-projectedstripstereo.first.y()); 
   double m11=(projectedstripstereo.second.x()-projectedstripstereo.first.x());
   
   //perform the matching
   //(x2-x1)(y-y1)=(y2-y1)(x-x1)
   AlgebraicMatrix22 m(ROOT::Math::SMatrixNoInit{}); 
   AlgebraicVector2 c(c0,m11*projectedstripstereo.first.y()+m10*projectedstripstereo.first.x());
   m(0,0)=m00; 
   m(0,1)=m01;
   m(1,0)=m10;
   m(1,1)=m11;
   m.Invert(); 
   AlgebraicVector2 solution = m * c;
   Local2DPoint position(solution(0),solution(1));
   
 
   if ((!force) &&  (!((gluedDet->surface()).bounds().inside(position,10.f*scale_))) ) return std::unique_ptr<SiStripMatchedRecHit2D>(nullptr);
 
   double c2 = -m10;
   double s2 = -m11;
   double l2 = 1./(c2*c2+s2*s2);
   
   
   double sigmap22 = sigmaPitch(stereoRH->localPosition(),stereoRH->localPositionError(),partnertopol);
   // auto sigmap22 = stereoRH->sigmaPitch();
   // assert (sigmap22>0);
 
   double diff=(c1*s2-c2*s1);
   double invdet2=1/(diff*diff*l1*l2);
   float xx= invdet2*(sigmap12*s2*s2*l2+sigmap22*s1*s1*l1);
   float xy=-invdet2*(sigmap12*c2*s2*l2+sigmap22*c1*s1*l1);
   float yy= invdet2*(sigmap12*c2*c2*l2+sigmap22*c1*c1*l1);
   LocalError error(xx,xy,yy);
  
 
   //if it is inside the gluedet bonds
   //Change NSigmaInside in the configuration file to accept more hits
   if(force || (gluedDet->surface()).bounds().inside(position,error,scale_)) 
     return std::make_unique<SiStripMatchedRecHit2D>(LocalPoint(position), error, *gluedDet, monoRH,stereoRH);
   return std::unique_ptr<SiStripMatchedRecHit2D>(nullptr);
 }

void SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		RecHitIterator	begin,
		RecHitIterator	end,
		CollectorMatched &	collector,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection
	)		const

Definition at line 83 of file SiStripRecHitMatcher.cc.

References end, mps_fire::i, and match().

                                                    {
   
   // is this really needed now????
   SimpleHitCollection stereoHits;
   stereoHits.reserve(end-begin);
   for (RecHitIterator i=begin; i != end; ++i) 
     stereoHits.push_back( &(*i)); // convert to simple pointer
   
   return match( monoRH,
         stereoHits.begin(), stereoHits.end(),
         collector,
         gluedDet,trackdirection);
 }

void SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		SimpleHitIterator	begin,
		SimpleHitIterator	end,
		CollectorMatched &	collector,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection
	)		const

Definition at line 68 of file SiStripRecHitMatcher.cc.

References match(), and mps_fire::result.

                                                    {
 
   Collector result(boost::bind(pb2,boost::ref(collector),_1));
   match(monoRH,begin,end,result,gluedDet,trackdirection);
   
 }

void SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		SimpleHitIterator	begin,
		SimpleHitIterator	end,
		edm::OwnVector< SiStripMatchedRecHit2D > &	collector,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection
	)		const

Definition at line 42 of file SiStripRecHitMatcher.cc.

References match(), AlCaHLTBitMon_ParallelJobs::p, edm::OwnVector< T, P >::push_back(), and mps_fire::result.

                                                    {
 
   std::vector<SiStripMatchedRecHit2D*> result;
   result.reserve(end-begin);
   match(monoRH,begin,end,result,gluedDet,trackdirection);
   for (std::vector<SiStripMatchedRecHit2D*>::iterator p=result.begin(); p!=result.end();
        p++) collector.push_back(*p);
 }

void SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		SimpleHitIterator	begin,
		SimpleHitIterator	end,
		std::vector< SiStripMatchedRecHit2D * > &	collector,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection
	)		const

Definition at line 57 of file SiStripRecHitMatcher.cc.

References SiStripMatchedRecHit2D::clone(), match(), and mps_fire::result.

                                                    {
   Collector result(boost::bind(&pb1,boost::ref(collector),
                  boost::bind(&SiStripMatchedRecHit2D::clone,_1)));
   match(monoRH,begin,end,result,gluedDet,trackdirection);
 }

void SiStripRecHitMatcher::match	(	const SiStripRecHit2D *	monoRH,
		SimpleHitIterator	begin,
		SimpleHitIterator	end,
		Collector &	collector,
		const GluedGeomDet *	gluedDet,
		LocalVector	trackdirection
	)		const

the actual implementation

Definition at line 105 of file SiStripRecHitMatcher.cc.

References EnergyCorrector::c, fftjetpileupestimator_calo_uncalib_cfi::c0, alignmentValidation::c1, mps_update::diff, end, relativeConstraints::error, StripTopology::localPosition(), BaseTrackerRecHit::localPosition(), BaseTrackerRecHit::localPositionError(), BaseTrackerRecHit::localPositionFast(), funct::m, PV3DBase< T, PVType, FrameType >::mag2(), Topology::measurementPosition(), GluedGeomDet::monoDet(), position, project(), indexGen::s2, scale_, sigmaPitch(), GluedGeomDet::stereoDet(), GeomDet::surface(), toLocal(), GeomDet::topology(), x, geometryCSVtoXML::xx, geometryCSVtoXML::xy, and geometryCSVtoXML::yy.

                                                    {
   // stripdet = mono
   // partnerstripdet = stereo
   const GeomDetUnit* stripdet = gluedDet->monoDet();
   const GeomDetUnit* partnerstripdet = gluedDet->stereoDet();
   const StripTopology& topol=(const StripTopology&)stripdet->topology();
 
   // position of the initial and final point of the strip (RPHI cluster) in local strip coordinates
   double RPHIpointX = topol.measurementPosition(monoRH->localPositionFast()).x();
   MeasurementPoint RPHIpointini(RPHIpointX,-0.5);
   MeasurementPoint RPHIpointend(RPHIpointX,0.5);
 
   // position of the initial and final point of the strip in local coordinates (mono det)
   StripPosition stripmono=StripPosition(topol.localPosition(RPHIpointini),topol.localPosition(RPHIpointend));
 
   if(trackdirection.mag2()<FLT_MIN){// in case of no track hypothesis assume a track from the origin through the center of the strip
     LocalPoint lcenterofstrip=monoRH->localPositionFast();
     GlobalPoint gcenterofstrip=(stripdet->surface()).toGlobal(lcenterofstrip);
     GlobalVector gtrackdirection=gcenterofstrip-GlobalPoint(0,0,0);
     trackdirection=(gluedDet->surface()).toLocal(gtrackdirection);
   }
 
   //project mono hit on glued det
   StripPosition projectedstripmono=project(stripdet,gluedDet,stripmono,trackdirection);
   const StripTopology& partnertopol=(const StripTopology&)partnerstripdet->topology();
 
   double m00 = -(projectedstripmono.second.y()-projectedstripmono.first.y()); 
   double m01 =  (projectedstripmono.second.x()-projectedstripmono.first.x());
   double c0  =  m01*projectedstripmono.first.y()   + m00*projectedstripmono.first.x();
  
   //error calculation (the part that depends on mono RH only)
   //  LocalVector  RPHIpositiononGluedendvector=projectedstripmono.second-projectedstripmono.first;
   /*
   double l1 = 1./RPHIpositiononGluedendvector.perp2();
   double c1 = RPHIpositiononGluedendvector.y();
   double s1 =-RPHIpositiononGluedendvector.x();
   */
   double c1 = -m00;
   double s1 = -m01;
   double l1 = 1./(c1*c1+s1*s1);
 
  
   double sigmap12 = sigmaPitch(monoRH->localPosition(), monoRH->localPositionError(),topol);
   // auto sigmap12 = monoRH->sigmaPitch();
   // assert(sigmap12>=0);
 
 
   SimpleHitIterator seconditer;  
 
   for(seconditer=begin;seconditer!=end;++seconditer){//iterate on stereo rechits
 
     // position of the initial and final point of the strip (STEREO cluster)
     double STEREOpointX=partnertopol.measurementPosition((*seconditer)->localPositionFast()).x();
     MeasurementPoint STEREOpointini(STEREOpointX,-0.5);
     MeasurementPoint STEREOpointend(STEREOpointX,0.5);
 
     // position of the initial and final point of the strip in local coordinates (stereo det)
     StripPosition stripstereo(partnertopol.localPosition(STEREOpointini),partnertopol.localPosition(STEREOpointend));
  
     //project stereo hit on glued det
     StripPosition projectedstripstereo=project(partnerstripdet,gluedDet,stripstereo,trackdirection);
 
  
     double m10=-(projectedstripstereo.second.y()-projectedstripstereo.first.y()); 
     double m11=(projectedstripstereo.second.x()-projectedstripstereo.first.x());
 
    //perform the matching
    //(x2-x1)(y-y1)=(y2-y1)(x-x1)
     AlgebraicMatrix22 m; AlgebraicVector2 c; // FIXME understand why moving this initializer out of the loop changes the output!
     m(0,0)=m00; 
     m(0,1)=m01;
     m(1,0)=m10;
     m(1,1)=m11;
     c(0)=c0;
     c(1)=m11*projectedstripstereo.first.y()+m10*projectedstripstereo.first.x();
     m.Invert(); 
     AlgebraicVector2 solution = m * c;
     LocalPoint position(solution(0),solution(1));
 
     /*
     {
       double m00 = -(projectedstripmono.second.y()-projectedstripmono.first.y()); 
       double m01 =  (projectedstripmono.second.x()-projectedstripmono.first.x());
       double m10 = -(projectedstripstereo.second.y()-projectedstripstereo.first.y()); 
       double m11 =  (projectedstripstereo.second.x()-projectedstripstereo.first.x());
       double c0  =  m01*projectedstripmono.first.y()   + m00*projectedstripmono.first.x();
       double c1  =  m11*projectedstripstereo.first.y() + m10*projectedstripstereo.first.x();
       
       double invDet = 1./(m00*m11-m10*m01);
     }
     */
 
     //
     // temporary fix by tommaso
     //
 
 
     LocalError tempError (100,0,100);
     if (!((gluedDet->surface()).bounds().inside(position,tempError,scale_))) continue;                                                       
 
     // then calculate the error
     /*
     LocalVector  stereopositiononGluedendvector=projectedstripstereo.second-projectedstripstereo.first;
     double l2 = 1./stereopositiononGluedendvector.perp2();
     double c2 = stereopositiononGluedendvector.y(); 
     double s2 =-stereopositiononGluedendvector.x();
     */
 
     double c2 = -m10;
     double s2 = -m11;
     double l2 = 1./(c2*c2+s2*s2);
 
    double sigmap22 = sigmaPitch((*seconditer)->localPosition(),(*seconditer)->localPositionError(),partnertopol);
    // auto sigmap22 = (*seconditer)->sigmaPitch();
     // assert(sigmap22>=0);
 
     double diff=(c1*s2-c2*s1);
     double invdet2=1/(diff*diff*l1*l2);
     float xx= invdet2*(sigmap12*s2*s2*l2+sigmap22*s1*s1*l1);
     float xy=-invdet2*(sigmap12*c2*s2*l2+sigmap22*c1*s1*l1);
     float yy= invdet2*(sigmap12*c2*c2*l2+sigmap22*c1*c1*l1);
     LocalError error(xx,xy,yy);
 
     if((gluedDet->surface()).bounds().inside(position,error,scale_)){ //if it is inside the gluedet bonds
       //Change NSigmaInside in the configuration file to accept more hits
       //...and add it to the Rechit collection 
 
       const SiStripRecHit2D* secondHit = *seconditer;
       collector(SiStripMatchedRecHit2D(position, error,*gluedDet,
                        monoRH,secondHit));
     }
   }
 }

bool SiStripRecHitMatcher::preFilter ( ) const

inline

Definition at line 44 of file SiStripRecHitMatcher.h.

References preFilter_.

44 { return preFilter_;}

SiStripRecHitMatcher::preFilter_

bool preFilter_

Definition: SiStripRecHitMatcher.h:124

SiStripRecHitMatcher::StripPosition SiStripRecHitMatcher::project	(	const GeomDetUnit *	det,
		const GluedGeomDet *	glueddet,
		StripPosition	strip,
		LocalVector	trackdirection
	)		const

Definition at line 245 of file SiStripRecHitMatcher.cc.

References Scenarios_cff::scale, GeomDet::surface(), toLocal(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by match(), and sigmaPitch().

                                                                         {
 
   GlobalPoint globalpointini=(det->surface()).toGlobal(strip.first);
   GlobalPoint globalpointend=(det->surface()).toGlobal(strip.second);
 
   // position of the initial and final point of the strip in glued local coordinates
   LocalPoint positiononGluedini=(glueddet->surface()).toLocal(globalpointini);
   LocalPoint positiononGluedend=(glueddet->surface()).toLocal(globalpointend);
 
   //correct the position with the track direction
 
   float scale=-positiononGluedini.z()/trackdirection.z();
 
   LocalPoint projpositiononGluedini= positiononGluedini + scale*trackdirection;
   LocalPoint projpositiononGluedend= positiononGluedend + scale*trackdirection;
 
   return StripPosition(projpositiononGluedini,projpositiononGluedend);
 }

static float SiStripRecHitMatcher::sigmaPitch	(	LocalPoint const &	pos,
		LocalError const &	err,
		const StripTopology &	topol
	)

inlinestatic

Definition at line 48 of file SiStripRecHitMatcher.h.

References begin, doubleMatch(), end, relativeConstraints::error, cmsStageWithFailover::force, StripTopology::localPitch(), match(), Topology::measurementError(), project(), digi_MixPreMix_cfi::strip, and MeasurementError::uu().

Referenced by match().

                                        {
     MeasurementError error = topol.measurementError(pos,err);
     auto pitch=topol.localPitch(pos);
     return error.uu()*pitch*pitch;
   }

Member Data Documentation

bool SiStripRecHitMatcher::preFilter_ =false

Definition at line 124 of file SiStripRecHitMatcher.h.

Referenced by preFilter().

float SiStripRecHitMatcher::scale_

Definition at line 123 of file SiStripRecHitMatcher.h.

Referenced by match().

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation