Gyoto
GyotoRotStar3_1.h
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1 
8 /*
9  Copyright 2011 Frederic Vincent
10 
11  This file is part of Gyoto.
12 
13  Gyoto is free software: you can redistribute it and/or modify
14  it under the terms of the GNU General Public License as published by
15  the Free Software Foundation, either version 3 of the License, or
16  (at your option) any later version.
17 
18  Gyoto is distributed in the hope that it will be useful,
19  but WITHOUT ANY WARRANTY; without even the implied warranty of
20  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  GNU General Public License for more details.
22 
23  You should have received a copy of the GNU General Public License
24  along with Gyoto. If not, see <http://www.gnu.org/licenses/>.
25  */
26 
27 
28 #ifndef __GyotoRotStar3_1_H_
29 #define __GyotoRotStar3_1_H_
30 
31 #include <iostream>
32 #include <fstream>
33 
34 namespace Lorene{
35  class Star_rot;
36 }
37 
38 namespace Gyoto {
39  namespace Metric { class RotStar3_1; }
40 }
41 
42 #include <GyotoMetric.h>
43 #include <GyotoWorldline.h>
44 #include <GyotoSmartPointer.h>
45 
46 #ifdef GYOTO_USE_XERCES
47 #include <GyotoRegister.h>
48 #endif
49 
55  friend class Gyoto::SmartPointer<Gyoto::Metric::RotStar3_1>;
56 
57  private:
58  char* filename_;
59  Lorene::Star_rot * star_;
61 
62  public:
64  RotStar3_1();
65  RotStar3_1(const RotStar3_1& ) ;
66  virtual ~RotStar3_1() ;
67  virtual RotStar3_1* clone() const ;
69 
70  void fileName(char const *);
71  char const * fileName() const;
72 
73  void file(std::string const &);
74  std::string file() const;
75 
76  void integKind(int);
77  int integKind() const ;
78  void genericIntegrator(bool);
79  bool genericIntegrator() const ;
80 
82 
89  int myrk4(const double coord[6], double h, double res[6]) const;
90 
91 
97  int myrk4_adaptive(Gyoto::Worldline* line, const double coord[8], double lastnorm, double normref, double coordnew[8], double h0, double& h1, double h1max) const;
98 
104  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;
105 
109  int diff(const double coord[8], double res[8]) const ;
110 
118  int diff(const double y[6], double res[6], int) const ;
119 
120 
124  void Normalize4v(const double coordin[6], double coordout[6], const double cst[2], double& tdot_used) const;
125 
126  double gmunu(const double * x, int mu, int nu) const ;
127 
128  double christoffel(const double coord[8], const int alpha, const int mu,
129  const int nu) const ;
130 
131  double ScalarProd(const double pos[4],
132  const double u1[4], const double u2[4]) const ;
133 
134  virtual int setParameter(std::string, std::string, std::string);
135 
136 };
137 
138 #endif
int myrk4(const double coord[6], double h, double res[6]) const
RK4 integrator.
#define GYOTO_OBJECT
Declare class::properties and class::getProperties()
Definition: GyotoObject.h:83
Pointers performing reference counting.
Definition: GyotoProperty.h:41
int integ_kind_
1 if RotStar3_1::myrk4(), 0 if Metric::myrk4()
Definition: GyotoRotStar3_1.h:60
Lorene::Star_rot * star_
Pointer to underlying Lorene Star_rot instance.
Definition: GyotoRotStar3_1.h:59
Numerical metric around a rotating star in 3+1 formalism.
Definition: GyotoRotStar3_1.h:54
Gyoto registers.
Base class for metrics.
Definition: GyotoMetric.h:148
Reference-counting pointers.
int myrk4_adaptive(Gyoto::Worldline *line, const double coord[8], double lastnorm, double normref, double coordnew[8], double h0, double &h1, double h1max) const
Adaptive RK4 integrator.
std::string file() const
Get filename_.
char * filename_
Lorene output file name.
Definition: GyotoRotStar3_1.h:58
void Normalize4v(const double coordin[6], double coordout[6], const double cst[2], double &tdot_used) const
Tweak coordinates to insure conservation of cst.
bool genericIntegrator() const
Get !integ_kind_.
double ScalarProd(const double pos[4], const double u1[4], const double u2[4]) const
Scalar product.
Definition: GyotoNumericalMetricLorene.h:26
Timelike or null geodesics.
Base class for metric description.
Namespace for the Gyoto library.
Definition: GyotoAstrobj.h:43
virtual int setParameter(std::string, std::string, std::string)
Set parameter by name.
double christoffel(const double coord[8], const int alpha, const int mu, const int nu) const
Chistoffel symbol.
int integKind() const
Get integ_kind_.
char const * fileName() const
Get filename_.
double gmunu(const double *x, int mu, int nu) const
Metric coefficients.
virtual int myrk4(Worldline *line, const double coord[8], double h, double res[8]) const
RK4 integrator.
int diff(const double coord[8], double res[8]) const
F function such as dy/dtau=F(y,cst)
virtual RotStar3_1 * clone() const
Cloner (uses RotStar3_1(file, integ_kind))