PHG4MvtxSubsystem.h

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// Tell emacs that this is a C++ source
//  -*- C++ -*-.
#ifndef G4MVTX_PHG4MVTXSUBSYSTEM_H
#define G4MVTX_PHG4MVTXSUBSYSTEM_H

#include <g4detectors/PHG4DetectorGroupSubsystem.h>

#include <cmath>                                     // for asin
#include <string>                                    // for string

class PHCompositeNode;
class PHG4Detector;
class PHG4DisplayAction;
class PHG4MvtxDetector;
class PHG4SteppingAction;

class PHG4MvtxSubsystem : public PHG4DetectorGroupSubsystem
{
 public:
  PHG4MvtxSubsystem(const std::string& name = "PHG4MvtxSubsystem", const int _n_layers = 3);

  ~PHG4MvtxSubsystem() override;


  int InitRunSubsystem(PHCompositeNode*) override;


  int process_event(PHCompositeNode*) override;

  PHG4Detector* GetDetector(void) const override;
  PHG4SteppingAction* GetSteppingAction(void) const override;

  PHG4DisplayAction* GetDisplayAction() const override { return m_DisplayAction; }

 private:
  void SetDefaultParameters() override;
  static double radii2Turbo(double rMin, double rMid, double rMax, double sensW)
  {
    // compute turbo angle from radii and sensor width
    return std::asin((rMax * rMax - rMin * rMin) / (2 * rMid * sensW));
  }

  PHG4MvtxDetector* m_Detector;


  PHG4SteppingAction* steppingAction_;


  PHG4DisplayAction* m_DisplayAction;

  // These are passed on to the detector class
  unsigned int n_layers;

  std::string detector_type;
};

#endif