////////////////////////////////////////////////////////////////////////
/// \class RAT::Optimisers::Surface
///
/// \brief Evaluates FOM surface
///
/// \author J Amey <jjtamey@googlemail.com>
/// \author Matt Mottram < m.mottram@qmul.ac.uk> -- contact person
///
/// REVISION HISTORY:\n
/// 08/2012 : J.Amey - First Revision, new file. \n
///
/// \details This optimiser evaluates the figure of merit at a constant
///         number of divisions over a range of the parameter space.
///
////////////////////////////////////////////////////////////////////////

#ifndef __RAT_Optimiser_Surface_
#define __RAT_Optimiser_Surface_

#include <string>

#include <RAT/Optimiser.hh>
#include <TTree.h>

namespace RAT
{

namespace Optimisers
{

class Surface : public Optimiser
{
public:
  virtual std::string GetName() const { return Surface::Name(); }

  static std::string Name() { return std::string( "surface" ); }

  /// Initialise the Optimiser
  void Initialise( const std::string& param );

  void BeginOfRun( DS::Run& ) { }

  void EndOfRun( DS::Run& ) { }

  virtual double Minimise();

  virtual double Maximise();

protected:
  /// To evaluate method over parameter space
  virtual void
  Evaluate();

  virtual void
  Scan( std::vector<double> coords, int dimension );

  std::vector<double> fStartp;
  std::vector<double> fData;
  std::vector<double> fIncs;
  TTree* ft;
  int fDiv;
  int fTotalDim;

};

} //::Optimiser

} //::RAT

#endif