AliPHOSTrackSegment

class AliPHOSTrackSegment : public TObject

    public:

       AliPHOSTrackSegment AliPHOSTrackSegment()
       AliPHOSTrackSegment AliPHOSTrackSegment(AliPHOSEmcRecPoint* EmcRecPoint, AliPHOSPpsdRecPoint* PpsdUp, AliPHOSPpsdRecPoint* PpsdLow)
       AliPHOSTrackSegment AliPHOSTrackSegment(const AliPHOSTrackSegment& ts)
              virtual void ~AliPHOSTrackSegment()
                   TClass* Class()
              virtual void Copy(TObject& obj)
             virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
              virtual void Draw(Option_t* option)
              virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
                   Float_t GetDistanceInPHOSPlane()
       AliPHOSEmcRecPoint* GetEmcRecPoint() const
                   Float_t GetEnergy()
                  TVector3 GetMomentumDirection()
             virtual Int_t GetPHOSMod()
                      void GetPosition(TVector3& pos)
      AliPHOSPpsdRecPoint* GetPpsdLow() const
      AliPHOSPpsdRecPoint* GetPpsdUp() const
                    Int_t* GetPrimariesEmc(Int_t& number)
                    Int_t* GetPrimariesPpsdLow(Int_t& number)
                    Int_t* GetPrimariesPpsdUp(Int_t& number)
           virtual TClass* IsA() const
              virtual void Paint(Option_t* option)
                      void Print()
              virtual void ShowMembers(TMemberInspector& insp, char* parent)
              virtual void Streamer(TBuffer& b)

  Data Members
    private:

       AliPHOSEmcRecPoint* fEmcRecPoint  The EMC reconstructed point
      AliPHOSPpsdRecPoint* fPpsdLow      The PPSD reconstructed point from the lower layer
      AliPHOSPpsdRecPoint* fPpsdUp       The PPSD reconstructed point from the upper layer

Class Description

  Track segment in PHOS
  Can be : 1 EmcRecPoint
           1 EmcRecPoint + 1 PPSD
           1 EmcRecPoint + 1 PPSD + 1 PPSD

*-- Author:  Dmitri Peressounko (RRC KI & SUBATECH)

 ctor

 Copy ctor

 Copy of a track segment into another track segment

 Compute distance from point px,py to  a AliPHOSTrackSegment considered as a Tmarker
 Compute the closest distance of approach from point px,py to this marker.
 The distance is computed in pixels units.

 Draw this AliPHOSTrackSegment with its current attribute

 Execute action corresponding to one event
  This member function is called when a AliPHOSTrackSegment is clicked with the locator

  If Left button is clicked on AliPHOSRecPoint, the digits are switched on
  and switched off when the mouse button is released.

 Calculates the distance between the EMC RecPoint and PPSD RecPoint

 Calculates the momentum direction:
   1. if only a EMC RecPoint, direction is given by IP and this RecPoint
   2. if a EMC RecPoint and one PPSD RecPoint, direction is given by the line through the 2 recpoints
   3. if a EMC RecPoint and two PPSD RecPoints, dirrection is given by the average line through
      the 2 pairs of recpoints
 However because of the poor position resolution of PPSD the direction is always taken as if we were
  in case 1.

 Retrieves the primary particle(s) at the origin of the EMC RecPoint

 Retrieves the primary particle(s) at the origin of the lower PPSD RecPoint

 Retrieves the primary particle(s) at the origin of the upper PPSD  RecPoint

 Returns position of the EMC RecPoint

 Paint this ALiPHOSTrackSegment as a TMarker  with its current attributes

 Print all information on this track Segment

Inline Functions

         AliPHOSTrackSegment AliPHOSTrackSegment(const AliPHOSTrackSegment& ts)
                     Float_t GetEnergy()
                       Int_t GetPHOSMod()
         AliPHOSEmcRecPoint* GetEmcRecPoint() const
        AliPHOSPpsdRecPoint* GetPpsdLow() const
        AliPHOSPpsdRecPoint* GetPpsdUp() const
                     TClass* Class()
                     TClass* IsA() const
                        void ShowMembers(TMemberInspector& insp, char* parent)
                        void Streamer(TBuffer& b)
                        void ~AliPHOSTrackSegment()