RhoVertexSelectorBase.h

Go to the documentation of this file.

#ifndef RHOVERTEXSELECTORBSE_H
#define RHOVERTEXSELECTORBSE_H
//                                                                      //
// RhoVertexSelectorBase                                                //
//                                                                      //
// Abstract Selector classes for vertexing                              //
//                                                                      //
// Author: Marcel Kunze, RUB, July 99                                   //
// Copyright (C) 1999-2001, Ruhr-University Bochum.                     //
// Ralf Kliemt, HIM/GSI Feb.2013 (Cleanup & Restructuring)              //
//                                                                      //

#include <iostream>

#include "TNamed.h"
#include "TVector3.h"

class RhoCandidate;
class RhoCandList;

class RhoVertexSelectorBase : public TNamed
{

  public:

    //Constructor
    RhoVertexSelectorBase ( const char* name="RhoVertexSelectorBase" );
    //Destructor
    virtual ~RhoVertexSelectorBase();

    //operations
    virtual Bool_t Accept ( RhoCandidate*,RhoCandidate* ) = 0;
    virtual Bool_t Accept ( RhoCandidate*,RhoCandidate*,RhoCandidate* ) {
      return kTRUE;
    };
    virtual Bool_t Accept ( RhoCandidate*,RhoCandidate*,RhoCandidate*,RhoCandidate* ) {
      return kTRUE;
    };
    virtual Bool_t Accept ( RhoCandidate*,RhoCandidate*,RhoCandidate*,RhoCandidate*,RhoCandidate* ) {
      return kTRUE;
    };
    void SetDistanceOfClosestApproach ( Double_t d ) {
      fDoca = d;
    }
    void SetAngle ( Double_t d ) {
      fVtxip = d;
    }
    void SetRadius ( Double_t r1, Double_t r2 = 1.E8 ) {
      fRmin = r1;
      fRmax = r2;
    }
    void SetPrimaryVertex ( TVector3 x ) {
      fPrimaryVertex = x;
    }
    TVector3 GetVertex() {
      return fVertex;
    }
    Double_t GetDistanceOfClosestApproach() {
      return fActualDoca;
    }
    Double_t GetAngle() {
      return fActualVtxip;
    }
    virtual void PrintOn ( std::ostream& o=std::cout ) const;

    const TVector3& GetMomentumA() const {
      return fMomA;
    }
    const TVector3& GetMomentumB() const {
      return fMomB;
    }
    TVector3 GetMomentum() const {
      return fMomA+fMomB;
    }
    Double_t GetRadius() const {
      return fActualR;
    }
    void Combine ( RhoCandList& in1,RhoCandList& in2,RhoCandList& out );

  protected:
    Double_t    fDoca;          // Distance of closest approach
    Double_t    fVtxip;         // Angle between momentum and (IP->Vertex)
    Double_t      fRmin;            // Inner radius of acceptance
    Double_t      fRmax;            // Outer radius of acceptance
    Double_t      fActualR;           // Calculated distance to IP
    Double_t    fActualVtxip;       // Calculated angle
    Double_t    fActualDoca;        // Calculated doca
    TVector3      fVertex;      // Reconstructed vertex
    TVector3    fPrimaryVertex;     // Origin
    TVector3      fMomA,fMomB;      // P3 of the two candidates  at poca

  public:
    ClassDef ( RhoVertexSelectorBase,1 ) // Vertexing base class
};

std::ostream&  operator << ( std::ostream& o, const RhoVertexSelectorBase& );

#endif