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#include "UserCode/L1RpcTriggerAnalysis/interface/TrackAtSurface.h"
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#include <vector>
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#include "FWCore/Framework/interface/Event.h"
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#include "FWCore/Framework/interface/EventSetup.h"
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#include "FWCore/Framework/interface/ESHandle.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include "Geometry/CommonDetUnit/interface/GlobalTrackingGeometry.h"
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#include "Geometry/Records/interface/GlobalTrackingGeometryRecord.h"
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#include "MagneticField/Engine/interface/MagneticField.h"
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#include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
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#include "DataFormats/MuonReco/interface/Muon.h"
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#include "DataFormats/MuonReco/interface/MuonFwd.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/TrackReco/interface/TrackFwd.h"
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#include "DataFormats/Math/interface/deltaR.h"
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#include "TrackingTools/GeomPropagators/interface/Propagator.h"
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#include "TrackingTools/PatternTools/interface/Trajectory.h"
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#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
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#include "TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h"
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#include "TrackingTools/Records/interface/TrackingComponentsRecord.h"
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#include "DataFormats/GeometrySurface/interface/BoundCylinder.h"
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#include "DataFormats/GeometrySurface/interface/SimpleCylinderBounds.h"
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#include "DataFormats/GeometrySurface/interface/BoundDisk.h"
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#include "DataFormats/GeometrySurface/interface/SimpleDiskBounds.h"
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#include "Geometry/CommonDetUnit/interface/GeomDet.h"
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#include "DataFormats/MuonDetId/interface/RPCDetId.h"
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TrackAtSurface::TrackAtSurface(const TrajectoryStateOnSurface &state, const edm::Event &ev, const edm::EventSetup &es)
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: theState(state), theEv(ev), theEs(es)
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{ }
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TrackAtSurface::TrackAtSurface(const reco::Muon* mu,const edm::Event &ev, const edm::EventSetup &es)
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: theEv(ev), theEs(es)
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{
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edm::ESHandle<GlobalTrackingGeometry> globalGeometry;
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es.get<GlobalTrackingGeometryRecord>().get(globalGeometry);
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edm::ESHandle<MagneticField> magField;
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es.get<IdealMagneticFieldRecord>().get(magField);
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//refit global muons, take tracjctory colsest to Mu.
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typedef std::vector<Trajectory> Trajectories;
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edm::Handle<Trajectories> trajectories;
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edm::InputTag refitTag("globalMuons","Refitted");
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ev.getByLabel(refitTag,trajectories);
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double minDR = 0.3;
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for (Trajectories::const_iterator it=trajectories->begin(); it != trajectories->end(); ++it) {
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double diff = deltaR(mu->track()->eta(), mu->track()->phi(), it->geometricalInnermostState().globalMomentum().eta(), it->geometricalInnermostState().globalMomentum().phi());
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if (diff < minDR) { minDR = diff; theTrajectory = *it; }
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}
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theState = trajectoryStateTransform::outerStateOnSurface(*(mu->track()), *globalGeometry, &*magField);
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}
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TrajectoryStateOnSurface TrackAtSurface::atPoint( const GlobalPoint& point) const
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{
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TrajectoryStateOnSurface muTSOS = theTrajectory.empty() ? theState : theTrajectory.closestMeasurement(point).updatedState();
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bool barrel = fabs(point.z()) < 680. ? true : false;
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ReferenceCountingPointer<Surface> surface = barrel ?
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ReferenceCountingPointer<Surface>( new BoundCylinder( GlobalPoint(0.,0.,0.), TkRotation<float>(), SimpleCylinderBounds( point.perp(), point.perp(), -680., 680. ) ))
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: ReferenceCountingPointer<Surface>( new BoundDisk( GlobalPoint(0.,0.,point.z()), TkRotation<float>(), SimpleDiskBounds( 260., 720., -0.0001, 0.0001 ) ) );
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edm::ESHandle<Propagator> propagator;
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theEs.get<TrackingComponentsRecord>().get("SteppingHelixPropagatorAny", propagator);
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TrajectoryStateOnSurface result = propagator->propagate(muTSOS, *surface);
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return result;
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}
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TrajectoryStateOnSurface TrackAtSurface::atDetFromClose( const RPCDetId& rpc, const GlobalPoint& point) const
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{
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edm::ESHandle<GlobalTrackingGeometry> globalGeometry;
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theEs.get<GlobalTrackingGeometryRecord>().get(globalGeometry);
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edm::ESHandle<Propagator> propagator;
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const GeomDet * det = globalGeometry->idToDet(rpc);
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TrajectoryStateOnSurface muTSOS;
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if (!theTrajectory.empty()) muTSOS = theTrajectory.closestMeasurement(point).updatedState();
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theEs.get<TrackingComponentsRecord>().get("SteppingHelixPropagatorAny",propagator);
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Plane::PlanePointer surface = Plane::build(det->position(), det->rotation());
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TrajectoryStateOnSurface result;
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if (muTSOS.isValid()) result = propagator->propagate(muTSOS, *surface);
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return result;
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}
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TrajectoryStateOnSurface TrackAtSurface::atDetFromTrack( const RPCDetId& rpc) const
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{
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edm::ESHandle<GlobalTrackingGeometry> globalGeometry;
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theEs.get<GlobalTrackingGeometryRecord>().get(globalGeometry);
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edm::ESHandle<Propagator> propagator;
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const GeomDet * det = globalGeometry->idToDet(rpc);
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TrajectoryStateOnSurface muTSOS = theState;
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theEs.get<TrackingComponentsRecord>().get("SteppingHelixPropagatorAlong",propagator);
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Plane::PlanePointer surface = Plane::build(det->position(), det->rotation());
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TrajectoryStateOnSurface result;
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if (muTSOS.isValid()) result = propagator->propagate(muTSOS, *surface);
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return result;
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}
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TrajectoryStateOnSurface TrackAtSurface::atStation2( float eta) const
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{
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ReferenceCountingPointer<Surface> rpc;
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if (eta < -1.04) rpc = ReferenceCountingPointer<Surface>(new BoundDisk( GlobalPoint(0.,0.,-790.), TkRotation<float>(), SimpleDiskBounds( 300., 710., -10., 10. ) ) );
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else if (eta < -0.72) rpc = ReferenceCountingPointer<Surface>(new BoundCylinder( GlobalPoint(0.,0.,0.), TkRotation<float>(), SimpleCylinderBounds( 520, 520, -700, 700 ) ) );
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else if (eta < 0.72) rpc = ReferenceCountingPointer<Surface>(new BoundCylinder( GlobalPoint(0.,0.,0.), TkRotation<float>(), SimpleCylinderBounds( 500, 500, -700, 700 ) ) );
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else if (eta < 1.04) rpc = ReferenceCountingPointer<Surface>(new BoundCylinder( GlobalPoint(0.,0.,0.), TkRotation<float>(), SimpleCylinderBounds( 520, 520, -700, 700 ) ) );
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else rpc = ReferenceCountingPointer<Surface>(new BoundDisk( GlobalPoint(0.,0.,790.), TkRotation<float>(), SimpleDiskBounds( 300., 710., -10., 10. ) ) );
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edm::ESHandle<Propagator> propagator;
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theEs.get<TrackingComponentsRecord>().get("SteppingHelixPropagatorAlong", propagator);
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TrajectoryStateOnSurface trackAtRPC = propagator->propagate( theState, *rpc);
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return trackAtRPC;
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}
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