File indexing completed on 2023-04-15 01:47:33
0001 #ifndef RecoTracker_PixelLowPtUtilities_TrackFitter_h
0002 #define RecoTracker_PixelLowPtUtilities_TrackFitter_h
0003
0004 #include "RecoTracker/PixelTrackFitting/interface/PixelFitterBase.h"
0005 #include "DataFormats/TrackingRecHit/interface/TrackingRecHit.h"
0006 #include "RecoTracker/TkTrackingRegions/interface/TrackingRegion.h"
0007 #include "DataFormats/TrackReco/interface/Track.h"
0008 #include "FWCore/ParameterSet/interface/ParameterSet.h"
0009
0010 #include <vector>
0011
0012 class TransientTrackingRecHitBuilder;
0013 class TrackerGeometry;
0014 class MagneticField;
0015
0016 class TrackFitter : public PixelFitterBase {
0017 public:
0018 TrackFitter(const TrackerGeometry* tracker,
0019 const MagneticField* field,
0020 const TransientTrackingRecHitBuilder* ttrhBuilder)
0021 : theTracker(tracker), theField(field), theTTRecHitBuilder(ttrhBuilder) {}
0022 ~TrackFitter() override {}
0023
0024 std::unique_ptr<reco::Track> run(const std::vector<const TrackingRecHit*>& hits,
0025 const TrackingRegion& region) const override;
0026
0027 private:
0028 float getCotThetaAndUpdateZip(
0029 const GlobalPoint& inner, const GlobalPoint& outer, float radius, float phi, float d0, float& zip) const;
0030 float getPhi(float xC, float yC, int charge) const;
0031 float getZip(float d0, float curv, const GlobalPoint& inner, const GlobalPoint& outer) const;
0032 void getErrTipAndErrZip(float pt, float eta, float& errZip, float& errTip) const;
0033
0034 const TrackerGeometry* theTracker;
0035 const MagneticField* theField;
0036 const TransientTrackingRecHitBuilder* theTTRecHitBuilder;
0037 };
0038 #endif
