#include <GlobalTrackingRegionWithVerticesProducer.h>

Inheritance diagram for GlobalTrackingRegionWithVerticesProducer:

Public Member Functions
	GlobalTrackingRegionWithVerticesProducer (const edm::ParameterSet &cfg, edm::ConsumesCollector &&iC)

std::vector< std::unique_ptr< TrackingRegion > >	regions (const edm::Event &ev, const edm::EventSetup &) const override

	~GlobalTrackingRegionWithVerticesProducer () override

Public Member Functions inherited from TrackingRegionProducer
virtual	~TrackingRegionProducer ()

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)

Private Attributes
edm::InputTag	theBeamSpotTag

double	theFixedError

bool	theHalfLengthScaling

int	theMaxNVertices

double	theMaxPtMin

double	theMinHalfLength

double	theMinOriginR

double	theNSigmaZ

double	theOriginRadius

bool	theOriginRScaling

bool	thePrecise

double	thePtMin

bool	thePtMinScaling

double	theScalingEnd

double	theScalingStart

double	theSigmaZVertex

bool	theUseFakeVertices

bool	theUseFixedError

bool	theUseFoundVertices

bool	theUseMS

edm::EDGetTokenT< reco::BeamSpot >	token_beamSpot

edm::EDGetTokenT< edmNew::DetSetVector< SiPixelCluster > >	token_pc

edm::EDGetTokenT< reco::VertexCollection >	token_vertex

Detailed Description

Definition at line 18 of file GlobalTrackingRegionWithVerticesProducer.h.

Constructor & Destructor Documentation

◆ GlobalTrackingRegionWithVerticesProducer()

GlobalTrackingRegionWithVerticesProducer::GlobalTrackingRegionWithVerticesProducer	(	const edm::ParameterSet &	cfg,
		edm::ConsumesCollector &&	iC
	)

inline

Definition at line 20 of file GlobalTrackingRegionWithVerticesProducer.h.

                                                                                                   {
     edm::ParameterSet regionPSet = cfg.getParameter<edm::ParameterSet>("RegionPSet");
  
     thePtMin = regionPSet.getParameter<double>("ptMin");
     theOriginRadius = regionPSet.getParameter<double>("originRadius");
     theNSigmaZ = regionPSet.getParameter<double>("nSigmaZ");
     token_beamSpot = iC.consumes<reco::BeamSpot>(regionPSet.getParameter<edm::InputTag>("beamSpot"));
     thePrecise = regionPSet.getParameter<bool>("precise");
     theUseMS = regionPSet.getParameter<bool>("useMultipleScattering");
  
     theSigmaZVertex = regionPSet.getParameter<double>("sigmaZVertex");
     theFixedError = regionPSet.getParameter<double>("fixedError");
  
     theMaxNVertices = regionPSet.getParameter<int>("maxNVertices");
  
     theUseFoundVertices = regionPSet.getParameter<bool>("useFoundVertices");
     theUseFakeVertices = regionPSet.getParameter<bool>("useFakeVertices");
     theUseFixedError = regionPSet.getParameter<bool>("useFixedError");
     token_vertex = iC.consumes<reco::VertexCollection>(regionPSet.getParameter<edm::InputTag>("VertexCollection"));
  
     //information for Heavy ion region scaling
     theOriginRScaling = regionPSet.getParameter<bool>("originRScaling4BigEvts");
     thePtMinScaling = regionPSet.getParameter<bool>("ptMinScaling4BigEvts");
     theHalfLengthScaling = regionPSet.getParameter<bool>("halfLengthScaling4BigEvts");
     theMinOriginR = regionPSet.getParameter<double>("minOriginR");
     theMaxPtMin = regionPSet.getParameter<double>("maxPtMin");
     theMinHalfLength = regionPSet.getParameter<double>("minHalfLength");
     theScalingStart = regionPSet.getParameter<double>("scalingStartNPix");
     theScalingEnd = regionPSet.getParameter<double>("scalingEndNPix");
     edm::InputTag pixelClustersForScaling = regionPSet.getParameter<edm::InputTag>("pixelClustersForScaling");
     if (theOriginRScaling || thePtMinScaling || theHalfLengthScaling)
       token_pc = iC.consumes<edmNew::DetSetVector<SiPixelCluster> >(pixelClustersForScaling);
   }

References looper::cfg, edm::ParameterSet::getParameter(), HLT_FULL_cff::pixelClustersForScaling, theFixedError, theHalfLengthScaling, theMaxNVertices, theMaxPtMin, theMinHalfLength, theMinOriginR, theNSigmaZ, theOriginRadius, theOriginRScaling, thePrecise, thePtMin, thePtMinScaling, theScalingEnd, theScalingStart, theSigmaZVertex, theUseFakeVertices, theUseFixedError, theUseFoundVertices, theUseMS, token_beamSpot, token_pc, and token_vertex.

◆ ~GlobalTrackingRegionWithVerticesProducer()

GlobalTrackingRegionWithVerticesProducer::~GlobalTrackingRegionWithVerticesProducer ( )

inlineoverride

Definition at line 54 of file GlobalTrackingRegionWithVerticesProducer.h.

54 {}

Member Function Documentation

◆ fillDescriptions()

static void GlobalTrackingRegionWithVerticesProducer::fillDescriptions ( edm::ConfigurationDescriptions & descriptions )

inlinestatic

Definition at line 56 of file GlobalTrackingRegionWithVerticesProducer.h.

                                                                            {
     edm::ParameterSetDescription desc;
  
     desc.add<bool>("precise", true);
     desc.add<bool>("useMultipleScattering", false);
     desc.add<edm::InputTag>("beamSpot", edm::InputTag("offlineBeamSpot"));
     desc.add<bool>("useFixedError", true);
     desc.add<double>("originRadius", 0.2);
     desc.add<double>("sigmaZVertex", 3.0);
     desc.add<double>("fixedError", 0.2);
     desc.add<edm::InputTag>("VertexCollection", edm::InputTag("firstStepPrimaryVertices"));
     desc.add<double>("ptMin", 0.9);
     desc.add<bool>("useFoundVertices", true);
     desc.add<bool>("useFakeVertices", false);
     desc.add<int>("maxNVertices", -1)->setComment("-1 for all vertices");
     desc.add<double>("nSigmaZ", 4.0);
     desc.add<edm::InputTag>("pixelClustersForScaling", edm::InputTag("siPixelClusters"));
     desc.add<bool>("originRScaling4BigEvts", false);
     desc.add<bool>("ptMinScaling4BigEvts", false);
     desc.add<bool>("halfLengthScaling4BigEvts", false);
     desc.add<double>("minOriginR", 0);
     desc.add<double>("maxPtMin", 1000);
     desc.add<double>("minHalfLength", 0);
     desc.add<double>("scalingStartNPix", 0.0);
     desc.add<double>("scalingEndNPix", 1.0);
  
     // Only for backwards-compatibility
     edm::ParameterSetDescription descRegion;
     descRegion.add<edm::ParameterSetDescription>("RegionPSet", desc);
  
     descriptions.add("globalTrackingRegionWithVertices", descRegion);
   }

References edm::ConfigurationDescriptions::add(), edm::ParameterSetDescription::add(), and HLT_2018_cff::InputTag.

◆ regions()

std::vector<std::unique_ptr<TrackingRegion> > GlobalTrackingRegionWithVerticesProducer::regions	(	const edm::Event &	ev,
		const edm::EventSetup &
	)		const

inlineoverridevirtual

Implements TrackingRegionProducer.

Definition at line 89 of file GlobalTrackingRegionWithVerticesProducer.h.

                                                                                                              {
     std::vector<std::unique_ptr<TrackingRegion> > result;
  
     GlobalPoint theOrigin;
     edm::Handle<reco::BeamSpot> bsHandle;
     ev.getByToken(token_beamSpot, bsHandle);
     double bsSigmaZ;
     if (bsHandle.isValid()) {
       const reco::BeamSpot& bs = *bsHandle;
       bsSigmaZ = theNSigmaZ * bs.sigmaZ();
       theOrigin = GlobalPoint(bs.x0(), bs.y0(), bs.z0());
     } else {
       throw cms::Exception("Seeding") << "ERROR: input beamSpot is not valid in GlobalTrackingRegionWithVertices";
     }
  
     if (theUseFoundVertices) {
       edm::Handle<reco::VertexCollection> vertexCollection;
       ev.getByToken(token_vertex, vertexCollection);
  
       edm::Handle<edmNew::DetSetVector<SiPixelCluster> > pixelClusterDSV;
       bool doScaling = theOriginRScaling || thePtMinScaling || theHalfLengthScaling;
       if (doScaling)
         ev.getByToken(token_pc, pixelClusterDSV);
  
       for (reco::VertexCollection::const_iterator iV = vertexCollection->begin(); iV != vertexCollection->end(); iV++) {
         if (!iV->isValid())
           continue;
         if (iV->isFake() && !(theUseFakeVertices && theUseFixedError))
           continue;
         GlobalPoint theOrigin_ = GlobalPoint(iV->x(), iV->y(), iV->z());
  
         //scaling origin radius, half length, min pt for high-occupancy HI events to keep timing reasonable
         if (doScaling) {
           //Use the unscaled radius unless one of the two conditions below is met
           double scaledOriginRadius = theOriginRadius;
           double scaledHalfLength = theFixedError;
           double scaledPtMin = thePtMin;
  
           //calculate nPixels (adapted from TkSeedGenerator/src/ClusterChecker.cc)
           double nPix = 0;
  
           const edmNew::DetSetVector<SiPixelCluster>& input = *pixelClusterDSV;
           nPix = input.dataSize();
  
           //first condition is for high occupancy, second makes sure we won't divide by zero or a negative number
           if ((nPix > theScalingEnd) || ((theScalingEnd - theScalingStart) <= 0)) {
             if (theOriginRScaling)
               scaledOriginRadius = theMinOriginR;  // sets parameters to minimum value from PSet
             if (theHalfLengthScaling)
               scaledHalfLength = theMinHalfLength;
             if (thePtMinScaling)
               scaledPtMin = theMaxPtMin;
           }
           //second condition - scale radius linearly by Npix in the region from ScalingStart to ScalingEnd
           else if ((nPix <= theScalingEnd) && (nPix > theScalingStart)) {
             float slopeFactor = (nPix - theScalingStart) / (theScalingEnd - theScalingStart);
             if (theOriginRScaling)
               scaledOriginRadius = theOriginRadius - (theOriginRadius - theMinOriginR) * slopeFactor;
             if (theHalfLengthScaling)
               scaledHalfLength = theFixedError - (theFixedError - theMinHalfLength) * slopeFactor;
             if (thePtMinScaling)
               scaledPtMin = thePtMin - (thePtMin - theMaxPtMin) * slopeFactor;
           }
           //if region has 0 size, return 'result' empty, otherwise make a tracking region
           if (scaledOriginRadius != 0 && scaledHalfLength != 0) {
             result.push_back(std::make_unique<GlobalTrackingRegion>(
                 scaledPtMin, theOrigin_, scaledOriginRadius, scaledHalfLength, thePrecise, theUseMS));
           }
         }  //end of region scaling code, pp behavior below
  
         else {
           double theOriginHalfLength_ = (theUseFixedError ? theFixedError : (iV->zError()) * theSigmaZVertex);
           result.push_back(std::make_unique<GlobalTrackingRegion>(
               thePtMin, theOrigin_, theOriginRadius, theOriginHalfLength_, thePrecise, theUseMS));
           if (theMaxNVertices >= 0 && result.size() >= static_cast<unsigned>(theMaxNVertices))
             break;
         }
       }
  
       if (result.empty() && !(theOriginRScaling || thePtMinScaling || theHalfLengthScaling)) {
         result.push_back(std::make_unique<GlobalTrackingRegion>(
             thePtMin, theOrigin, theOriginRadius, bsSigmaZ, thePrecise, theUseMS));
       }
     } else {
       result.push_back(
           std::make_unique<GlobalTrackingRegion>(thePtMin, theOrigin, theOriginRadius, bsSigmaZ, thePrecise, theUseMS));
     }
  
     return result;
   }