BrTpcTrackFollowModule

class description - source file - inheritance tree

class BrTpcTrackFollowModule : public BrTpcTrackModule

    private:

      virtual void FindHitsNextRow(const Int_t rowNo, const Float_t* proj, const Float_t dx1, const Float_t dx2, const Float_t dy1, const Float_t dy2, TObjArray& FoundHits)
      virtual void FindTracks()
      virtual void FindTracksFromRow(const Int_t istart, const Int_t ilast)
              void TrackSingleHit(const Int_t istart, const Int_t ilast)

    public:

      BrTpcTrackFollowModule BrTpcTrackFollowModule()
      BrTpcTrackFollowModule BrTpcTrackFollowModule(const Char_t* name, const Char_t* title)
      BrTpcTrackFollowModule BrTpcTrackFollowModule(BrTpcTrackFollowModule&)
                virtual void ~BrTpcTrackFollowModule()
              static TClass* Class()
                virtual void DefineHistograms()
                virtual void Event(BrEventNode* inNode, BrEventNode* outNode)
               virtual Int_t GetMaxRowsMissed() const
            virtual Double_t GetSearchWidthX() const
            virtual Double_t GetSearchWidthY() const
                virtual void Init()
             virtual TClass* IsA() const
                virtual void Print(Option_t* option = "B") const
                virtual void SetMaxRowsMissed(Int_t val = 3)
                virtual void SetSearchWidthX(Double_t val = 0.2)
                virtual void SetSearchWidthY(Double_t val = 0.4)
                virtual void ShowMembers(TMemberInspector& insp, char* parent)
                virtual void Streamer(TBuffer& b)
                        void StreamerNVirtual(TBuffer& b)

Data Members

    private:

                Float_t fSearchWidthX      search width in x direction
                Float_t fSearchWidthY      search width in y direction
                  Int_t fMaxRowsMissed     max number of rows allowed to miss
      BrDetectorVolume* fTpcVolume         TPC detector volume pointer  
                  TH1F* hHitSearchDx       The pad hit distribtuion at the proj
                  TH2F* hHitRowSearchDx    The pad hit dist vs row at the proj
                  TH1F* hHitSearchDy       The time hit distribtuion at the proj
                  TH2F* hHitRowSearchDy    The time hit dist vs row at the proj
                  TH1F* hHitAcceptedDx     The pad hit dist for accepted hits 
                  TH2F* hHitRowAcceptedDx  The pad hit dist vs row for acc hits 
                  TH1F* hHitAcceptedDy     The time hit dist for accepted hits 
                  TH2F* hHitRowAcceptedDy  The time hit dist vs row for acc hits

Class Description

BrTpcTrackFollowModule() : BrTpcTrackModule()

 Default constructor. DO NOT USE

BrTpcTrackFollowModule(const Char_t* name, const Char_t* title) : BrTpcTrackModule(name, title)

 Named Constructor

void DefineHistograms()

 Define histograms. They are:
 <fill in here>

void Init()

 Job-level initialisation
 Init BrTpcTrackModule as well

void Event(BrEventNode* inNode, BrEventNode* outNode)

 Event method.
 First local tables and clonesarrays are cleared.
 Then hits are filled in the clonesarray for each row..
 The algorithm loops over hits in the last row. looking at the
 next active row in a search window that covers the front of the
 TPC the following windows is determined by the fSearchWidthX - and
 Y - which are angles.

 After the tracking the outputnode is filled with the best tracks

 If the tracking fails because of too many local track candidates
 (> 5000) then the Status is set to 1 and can be accessed with
 GetStatus. 0 is okay.

void FindTracks()

 Loop over rows to find tracks.
 Going from the back of the Tpc to the front

void FindTracksFromRow(const Int_t istart, const Int_t ilast)

 This is the method that loops over the hits in a single row
 It calls BrTrackSingleHit for each hit

void TrackSingleHit(const Int_t istart, const Int_t ilast)

 This routine tracks a single hit through all the remaining rows
 and forks the track candidate into more if more than 1 hit is
 found in the search window

void FindHitsNextRow(const Int_t rowNo, const Float_t *proj, const Float_t dx1, const Float_t dx2, const Float_t dy1, const Float_t dy2, TObjArray &FoundHits)

 Loop over the hits in row rownumber-1 and accepts the hits in the
 interval
 proj[0] - dx1 < x < proj[0] + dx2 &&
 proj[1] - dy1 < y < proj[1] + dy2
 The hits are then stored in the array FoundHits
 A lot of diagnosic histograms are filled!

void Print(Option_t* option) const

 Print module information
 See BrModule::Print for options.
 In addition this module defines the Option:
 <fill in here>

Inline Functions

                         Int_t GetMaxRowsMissed() const
                      Double_t GetSearchWidthX() const
                      Double_t GetSearchWidthY() const
                          void SetMaxRowsMissed(Int_t val = 3)
                          void SetSearchWidthX(Double_t val = 0.2)
                          void SetSearchWidthY(Double_t val = 0.4)
                       TClass* Class()
                       TClass* IsA() const
                          void ShowMembers(TMemberInspector& insp, char* parent)
                          void Streamer(TBuffer& b)
                          void StreamerNVirtual(TBuffer& b)
        BrTpcTrackFollowModule BrTpcTrackFollowModule(BrTpcTrackFollowModule&)
                          void ~BrTpcTrackFollowModule()

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