GyotoAstrobj.h

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/*
    Copyright 2011-2024 Thibaut Paumard, Frederic Vincent

    This file is part of Gyoto.

    Gyoto is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Gyoto is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Gyoto.  If not, see <http://www.gnu.org/licenses/>.
 */


#ifndef __GyotoAstrobj_H_ 
#define __GyotoAstrobj_H_ 

#include "GyotoConfig.h"

#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>

#include <Eigen/Dense>
#include <unsupported/Eigen/MatrixFunctions>

#include <GyotoDefs.h>
#include <GyotoSmartPointer.h>
#include <GyotoConverters.h>
#include <GyotoObject.h>

namespace Gyoto{
  class Photon;
  namespace Register { class Entry; }
  namespace Metric { class Generic; }
  class FactoryMessenger;
  namespace Astrobj {
    class Generic;
    class Properties;

    typedef SmartPointer<Gyoto::Astrobj::Generic>
      Subcontractor_t(Gyoto::FactoryMessenger*, std::vector<std::string> const &);
 
    template<typename T> SmartPointer<Astrobj::Generic> Subcontractor
      (FactoryMessenger* fmp, std::vector<std::string> const &plugin) {
      SmartPointer<T> ao = new T();
      ao -> plugins(plugin) ;
#ifdef GYOTO_USE_XERCES
      if (fmp) ao -> setParameters(fmp);
#endif
      return ao;
    }


    Gyoto::Astrobj::Subcontractor_t* getSubcontractor(std::string name,
                                                      std::vector<std::string> &plugin,
                                                      int errmode = 0);

    extern Gyoto::Register::Entry * Register_;

    void initRegister(); 

    void Register(std::string name, Gyoto::Astrobj::Subcontractor_t* scp);
  }
}

class Gyoto::Astrobj::Generic
: public Gyoto::SmartPointee,
  public Gyoto::Object
{
  friend class Gyoto::SmartPointer<Gyoto::Astrobj::Generic>;


  // Data : 
  // -----
private:

  int __defaultfeatures;

 protected:

  SmartPointer<Gyoto::Metric::Generic> gg_;


  double rmax_; 

  double deltamaxinsidermax_; 

  bool flag_radtransf_; 

  int shadow_; 
  int noredshift_; 

  std::string magneticConfig_; // Magnetic field geometry (toroidal, vertical)
  // Constructors - Destructor
  // -------------------------
 public:
  GYOTO_OBJECT;

  Generic(); 

  Generic(double radmax); 

  Generic(std::string kind); 

  Generic(const Generic& ) ; 

  virtual Generic* clone() const = 0 ; 
  
  virtual ~Generic() ; 

  // Accessors
  // ---------
 public:
  virtual SmartPointer<Metric::Generic> metric() const;

  virtual void metric(SmartPointer<Metric::Generic>) ;

  virtual double rMax(); 
  virtual double rMax() const; 

  virtual double rMax(std::string const &unit); 
  virtual double rMax(std::string const &unit) const; 


  virtual double deltaMax(double coord[8]);

  virtual void rMax(double val); 

  virtual void rMax(double val, std::string const &unit); 

  GYOTO_OBJECT_ACCESSORS_UNIT(deltaMaxInsideRMax);

  void opticallyThin(bool flag);

  bool opticallyThin() const ;

  void showshadow(bool flag);
  bool showshadow() const ;

  void redshift(bool flag);
  bool redshift() const ;

  virtual Gyoto::Quantity_t getDefaultQuantities();

  //XML I/O
 public:

#ifdef GYOTO_USE_XERCES

  virtual void setParameters(FactoryMessenger *fmp);


#endif
  
  // Outputs
  // -------
 public:
  virtual int Impact(Gyoto::Photon* ph, size_t index,
                     Astrobj::Properties *data=NULL) = 0 ;
  
  virtual void processHitQuantities(Photon * ph, state_t const &coord_ph_hit,
                                   double const * coord_obj_hit, double dt,
                                   Astrobj::Properties* data) const;
  virtual void processHitQuantities(Photon* ph, double* coord_ph_hit,
                                   double* coord_obj_hit, double dt,
                                   Astrobj::Properties* data) const = delete ;

  virtual double emission(double nu_em, double dsem, state_t const &coord_ph,
                          double const coord_obj[8]=NULL)
    const ;
  virtual double emission(double nu_em, double dsem, double coord_ph[8],
                          double coord_obj[8]=NULL)
    const = delete; 

  virtual void emission(double Inu[], double const nu_em[], size_t nbnu,
                        double dsem, state_t const &coord_ph,
                        double const coord_obj[8]=NULL) const ;
  virtual void emission(double Inu[], double nu_em[], size_t nbnu,
                        double dsem, double coord_ph[8],
                        double coord_obj[8]=NULL) const = delete ; 

  virtual void radiativeQ(double Inu[], double Taunu[], 
                          double const nu_em[], size_t nbnu,
                          double dsem, state_t const &coord_ph,
                          double const coord_obj[8]=NULL) const ;
  virtual void radiativeQ(double Inu[], double Taunu[], 
                          double nu_em[], size_t nbnu,
                          double dsem, double coord_ph[8],
                          double coord_obj[8]=NULL) const = delete ;
  virtual void radiativeQ(double *Inu, double *Qnu, double *Unu, double *Vnu,
                          Eigen::Matrix4d *Onu, double const *nuem , size_t nbnu, double dsem,
                          state_t const &cph, double const *co) const ;

  virtual double integrateEmission(double nu1, double nu2, double dsem,
                                   state_t const &c_ph, double const c_obj[8]=NULL) const;
  virtual double integrateEmission(double nu1, double nu2, double dsem,
                                   double c_ph[8], double c_obj[8]=NULL) const=delete; 

  virtual void integrateEmission(double * I, double const * boundaries,
                                 size_t const * chaninds, size_t nbnu,
                                 double dsem, state_t const &cph, double const *co) const;
  virtual void integrateEmission(double * I, double const * boundaries,
                                 size_t const * chaninds, size_t nbnu,
                                 double dsem, double *cph, double *co) const = delete;

  virtual double transmission(double nuem, double dsem, state_t const &coord_ph, double const coord_obj[8]) const ;
  virtual double transmission(double nuem, double dsem, state_t const &coord) const = delete;  
  virtual double transmission(double nuem, double dsem, double coord[8]) const = delete;

  Eigen::Matrix4d Omatrix(double alphanu[4], double rnu[3], double Chi, double dsem) const;
  Eigen::Matrix4d Omatrix(double alphaInu, double alphaQnu, double alphaUnu, double alphaVnu,
        double rQnu, double rUnu, double rVnu, double Chi, double dsem) const;
  Eigen::Matrix4d Omatrix(double alphanu[4], double rnu[3], double sin2Chi, double cos2Chi, double dsem) const;
  Eigen::Matrix4d Omatrix(double alphaInu, double alphaQnu, double alphaUnu, double alphaVnu,
        double rQnu, double rUnu, double rVnu, double sin2Chi, double cos2Chi, double dsem) const;

  Eigen::Matrix4d Pmatrix(double alphaInu, double alphaQnu, double alphaUnu, double alphaVnu,
        double rQnu, double rUnu, double rVnu, double sin2Chi, double cos2Chi, double dsem) const;
  
  Eigen::Vector4d rotateJs(double jInu, double jQnu, double jUnu, double jVnu, double sin2Chi, double cos2Chi) const;
  Eigen::Vector4d rotateJs(double jInu, double jQnu, double jUnu, double jVnu, double Chi) const;

  double getChi(double const fourvect[4], state_t const &cph, double const vel[4], bool elec=false) const;

  double get_theta_mag(double const fourvect[4], state_t const &coord_ph, double const vel[4]) const;
  void getSinCos2Chi(double const fourvect[4], state_t const &cph, double const vel[4], double* sin2Chi, double* cos2Chi, bool elec=false) const;
  void computeB4vect(double B4vect[4], std::string const magneticConfig, double const co[8], state_t const &cph, double const par=0.75) const;

  void computeB4vect_ipole(double B4vect[4], std::string const magneticConfig, double const co[8], state_t const &cph, double spin) const;
  double interpolate(int const N, double* const array, double* const Xq, double** const X, int* const X_params, std::string const *cond_limits) const;
  double interpolate(int const N, double* const array, double* const Xq, double** const X_params, std::string const *cond_limits) const;

  void magneticConfiguration(const std::string &config);

  std::string magneticConfiguration() const;

  private :
  double interp1d(double const x, double const y0, double const y1) const;
  double interpNd(int const N, double* const Xq, double** const X, double* const Y, std::string const *cond_limit) const;
  int getIndice(double &xq, std::string const cond_limit, double const X_params[3], double* const X=NULL) const;

};

class Gyoto::Astrobj::Properties : public Gyoto::SmartPointee {
  friend class Gyoto::SmartPointer<Gyoto::Astrobj::Properties>;
 public:
  double *intensity; 
  double *time; 

  double *distance; 

  double * first_dmin; 

  int first_dmin_found; 

  double *redshift; 

  double *nbcrosseqplane; 

  double *spectrum; 

  double *stokesQ;
  double *stokesU;
  double *stokesV;

  double *binspectrum; 

  ptrdiff_t offset; 

  double * impactcoords; 

  double *user1;

  double *user2;

  double *user3;

  double *user4;

  double *user5;
# ifdef HAVE_UDUNITS

  Gyoto::SmartPointer<Gyoto::Units::Converter> intensity_converter_ ;
  Gyoto::SmartPointer<Gyoto::Units::Converter> spectrum_converter_ ;
  Gyoto::SmartPointer<Gyoto::Units::Converter> binspectrum_converter_ ;
# endif

  bool alloc;

 public:
  Properties(); 
  Properties (double*, double*); 

  void init(size_t nbnuobs=0);

  Properties& operator++();

  Properties& operator+=(ptrdiff_t offset);

  operator Gyoto::Quantity_t () const;

# ifdef HAVE_UDUNITS
  void intensityConverter(Gyoto::SmartPointer<Gyoto::Units::Converter>);
  void intensityConverter(std::string);
  void spectrumConverter(Gyoto::SmartPointer<Gyoto::Units::Converter>);
  void spectrumConverter(std::string);
  void binSpectrumConverter(Gyoto::SmartPointer<Gyoto::Units::Converter>);
  void binSpectrumConverter(std::string);
# endif
};

#endif