Reconstruction/KalFitAlg/include/KalFitAlg/KalFitElement.h

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//-----------------------------------------------------------------------
// File from KalFit module
//
// Filename : KalFitElement.h
//------------------------------------------------------------------------
// Description :
// Element is a base class which represents an element of detector
//
//------------------------------------------------------------------------
// Modif :
//------------------------------------------------------------------------
#ifndef _DEFINE_ELEMENT_H_
#define _DEFINE_ELEMENT_H_
 
#include "KalFitAlg/lpav/Lpav.h" // Use for first circle fit....
 
class KalFitMaterial;
class KalFitTrack;
 
/**
 * Element is a base class which represents an element of detector
 */
class KalFitElement {
protected:
  /// Material of this element
  const KalFitMaterial* material_;
 
  /// Flags
  static int muls_;
  static int loss_;
 
public:
  /// Constructor
  KalFitElement( const KalFitMaterial* material ) : material_( material ) {}
 
  /// Destructor
  virtual ~KalFitElement() {}
 
  /// Find intersection with Helix
  virtual double intersect( const KalFitTrack& track, HepPoint3D& x ) const = 0;
 
  virtual double intersect( const KalFitTrack& track, HepPoint3D& x,
                            const HepPoint3D& point ) const = 0;
 
  /// Return Material of which Element is made
  const KalFitMaterial& material( void ) const { return *material_; }
 
  /// Return distance in r-phi plane
  virtual double radius( void ) const = 0;
 
  /// Update track according the material properties of the current element
  virtual void updateTrack( KalFitTrack& track, int index );
  virtual void updateTrack_rphi( KalFitTrack& track, int index );
 
  virtual void updateTrack_alreadyfound( KalFitTrack& track, int index );
  ///
  virtual void asso_rphi( KalmanFit::Lpav& circ, KalFitTrack& track );
  virtual void asso_rphi( KalFitTrack& track );
 
  /// Operator
  bool operator<( const KalFitElement& a ) const { return radius() < a.radius(); }
 
  static int muls( void );
  static int loss( void );
 
  static void muls( int i );
  static void loss( int i );
};
 
#endif