// Simone Bianco 19/05/2010

#ifndef PNDMVDSCATTLINFITTASK_H
#define PNDMVDSCATTLINFITTASK_H

// Base Class Headers ----------------
#include "FairTask.h"
#include <TGraph2D.h>
#include <TGraph2DErrors.h>

// Collaborating Class Headers -------
#include <map>
#include "TString.h"

#include "PndMvdHit.h"
#include "PndScatTrack.h"

// Collaborating Class Declarations --
class TClonesArray;
class TGeoManager;


class PndMvdScattLinFitTask : public FairTask {

public:

  // Constructors/Destructors ---------

  PndMvdScattLinFitTask();

  PndMvdScattLinFitTask(Double_t posZcarbon);

  //  PndMvdScattLinFitTask(const PndMvdScattLinFitTask& o){};
  //  PndMvdScattLinFitTask& operator=(const PndMvdScattLinFitTask& o) { return *this;};
 
  virtual ~PndMvdScattLinFitTask();

  virtual InitStatus Init();

  virtual void Exec(Option_t* opt);

  void Test(PndMvdHit *p1, PndMvdHit *p2, PndMvdHit *p3, Int_t stat);

 private:

  // Input Data------------
  TClonesArray* fTCandArray;
  TClonesArray* fRecoArray;
  TString fTCandBranchName;
  TString fRecoBranchName;

  // Output Data----------
  TClonesArray* fTrackArray;

  //Bool_t firstIt; 

  Int_t fTrackcount;

  Int_t fEvent;

  Int_t track;

  Int_t check; // just used for sorting the detector along the z axis

  Double_t fZcarbon;

  // Fitting ------------

  
  ClassDef(PndMvdScattLinFitTask,1);

};

#endif