RVM.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2021 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/MEAL/MEAL/RVM.h
 
#ifndef __RVM_H
#define __RVM_H
 
#include "MEAL/Univariate.h"
#include "MEAL/ScalarParameter.h"
#include "MEAL/ScalarArgument.h"
#include "MEAL/ScalarMath.h"
 
namespace MEAL {


  class RVM : public Univariate<Scalar>
  {
 
  public:
 
    RVM ();


    Reference::To<ScalarParameter> reference_position_angle;

    Reference::To<ScalarParameter> magnetic_meridian;

    Scalar* get_north () { return north; }
    Scalar* get_east () { return east; }
 
  protected:
 
    void set_atan_Psi (const ScalarMath& sin, const ScalarMath& cos);
    
    // the magnetic field line projected onto North
    Reference::To<Scalar> north;
 
    // the magnetic field line projected onto East
    Reference::To<Scalar> east;
 
    // pulse longitude
    Reference::To<ScalarArgument> longitude;
    
  private:
 
    // disable the calculate method
    /* derived classes copy the evaluation policy of the
       resulting ScalarMath expression */
    void calculate (double&, std::vector<double>*) {}
 
    // the answer
    Reference::To<Scalar> expression;
 
  };
 
}
 
#endif