GyotoRotStar3_1.h

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/*
    Copyright 2011-2014, 2016, 2018, 2020 Frederic Vincent & Thibaut Paumard

    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 __GyotoRotStar3_1_H_
#define __GyotoRotStar3_1_H_ 

#include <iostream>
#include <fstream>

namespace Lorene{
  class Star_rot;
}

namespace Gyoto {
  namespace Metric { class RotStar3_1; }
}

#include <GyotoMetric.h>
#include <GyotoWorldline.h>
#include <GyotoSmartPointer.h>

#ifdef GYOTO_USE_XERCES
#include <GyotoRegister.h>
#endif

class Gyoto::Metric::RotStar3_1 : public Gyoto::Metric::Generic {
  friend class Gyoto::SmartPointer<Gyoto::Metric::RotStar3_1>;

 private:
  char* filename_; 
  Lorene::Star_rot * star_; 
  int integ_kind_;

 public:
  GYOTO_OBJECT;
  GYOTO_OBJECT_THREAD_SAFETY;
  RotStar3_1(); 
  RotStar3_1(const RotStar3_1& ) ;                
  virtual ~RotStar3_1() ;        
  virtual RotStar3_1* clone() const ;

  void fileName(char const *); 
  char const * fileName() const; 

  void file(std::string const &); 
  std::string file() const; 

  void integKind(int); 
  int integKind() const ; 
  void genericIntegrator(bool); 
  bool genericIntegrator() const ;

  using Metric::Generic::myrk4;

  int myrk4(const double coord[6], double h, double res[6]) const;

  
  int myrk4_adaptive(Gyoto::Worldline* line, state_t const &coord, double lastnorm, double normref, state_t &coordnew, double h0, double& h1, double h1max) const;

  int myrk4_adaptive(const double coor[6], double lastnorm, double normref, double coornew[6], double cst[2], double& tdot_used, double h0, double& h1, double h1max, double& hused) const;

  int diff(state_t const &coord, state_t &res, double mass) const ;

  int diff(const double y[6], double res[6], int) const ;


  void Normalize4v(const double coordin[6], double coordout[6], const double cst[2], double& tdot_used) const;

  using Generic::gmunu;
  double gmunu(double const x[4], int mu, int nu) const ;

  using Generic::christoffel;
  double christoffel(const double coord[8], const int alpha, const int mu, 
                     const int nu) const ;

  double ScalarProd(const double pos[4],
                    const double u1[4], const double u2[4]) const ;

  virtual int setParameter(std::string, std::string, std::string);

};

#endif