packages/trackbase_historic/SvtxTrackState_v2.h

0001 #ifndef TRACKBASEHISTORIC_SVTXTRACKSTATEV2_H
0002 #define TRACKBASEHISTORIC_SVTXTRACKSTATEV2_H
0003
0004 #include "SvtxTrackState.h"
0005
0006 #include <cmath>
0007 #include <iostream>
0008 #include <string>  // for string, basic_string
0009
0010 class PHObject;
0011
0012 class SvtxTrackState_v2 : public SvtxTrackState
0013 {
0014  public:
0015   SvtxTrackState_v2(float pathlength = 0.0);
0016   ~SvtxTrackState_v2() override {}
0017
0018   // The "standard PHObject response" functions...
0019   void identify(std::ostream &os = std::cout) const override;
0020   void Reset() override { *this = SvtxTrackState_v2(0.0); }
0021   int isValid() const override { return 1; }
0022   PHObject *CloneMe() const override { return new SvtxTrackState_v2(*this); }
0023
0024   float get_pathlength() const override { return _pathlength; }
0025
0026   float get_x() const override { return _pos[0]; }
0027   void set_x(float x) override { _pos[0] = x; }
0028
0029   float get_y() const override { return _pos[1]; }
0030   void set_y(float y) override { _pos[1] = y; }
0031
0032   float get_z() const override { return _pos[2]; }
0033   void set_z(float z) override { _pos[2] = z; }
0034
0035   float get_pos(unsigned int i) const override { return _pos[i]; }
0036
0037   float get_px() const override { return _mom[0]; }
0038   void set_px(float px) override { _mom[0] = px; }
0039
0040   float get_py() const override { return _mom[1]; }
0041   void set_py(float py) override { _mom[1] = py; }
0042
0043   float get_pz() const override { return _mom[2]; }
0044   void set_pz(float pz) override { _mom[2] = pz; }
0045
0046   float get_mom(unsigned int i) const override { return _mom[i]; }
0047
0048   float get_p() const override { return sqrt(pow(get_px(), 2) + pow(get_py(), 2) + pow(get_pz(), 2)); }
0049   float get_pt() const override { return sqrt(pow(get_px(), 2) + pow(get_py(), 2)); }
0050   float get_eta() const override { return asinh(get_pz() / get_pt()); }
0051   float get_phi() const override { return atan2(get_py(), get_px()); }
0052
0053   float get_error(unsigned int i, unsigned int j) const override;
0054   // cppcheck-suppress virtualCallInConstructor
0055   void set_error(unsigned int i, unsigned int j, float value) override;
0056
0057   TrkrDefs::cluskey get_cluskey() const override { return _ckey; }
0058   void set_cluskey(TrkrDefs::cluskey ckey) override { _ckey = ckey; }
0059
0060   std::string get_name() const override { return state_name; }
0061   void set_name(const std::string &name) override { state_name = name; }
0062
0063   float get_rphi_error() const override;
0064   float get_phi_error() const override;
0065   float get_z_error() const override;
0066
0067   //@}
0068
0069  private:
0070   float _pathlength;
0071   float _pos[3]{};
0072   float _mom[3]{};
0073   float _covar[21]{};         //  6x6 triangular packed storage
0074   TrkrDefs::cluskey _ckey{};  // clusterkey that is associated with this state
0075   std::string state_name;
0076
0077   ClassDefOverride(SvtxTrackState_v2, 1)
0078 };
0079
0080 #endif