130 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			130 lines
		
	
	
		
			4.6 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | /* | ||
|  |  [auto_generated] | ||
|  |  boost/numeric/odeint/integrate/integrate_adaptive.hpp | ||
|  | 
 | ||
|  |  [begin_description] | ||
|  |  Adaptive integration of ODEs. | ||
|  |  [end_description] | ||
|  | 
 | ||
|  |  Copyright 2009-2011 Karsten Ahnert | ||
|  |  Copyright 2009-2011 Mario Mulansky | ||
|  | 
 | ||
|  |  Distributed under the Boost Software License, Version 1.0. | ||
|  |  (See accompanying file LICENSE_1_0.txt or | ||
|  |  copy at http://www.boost.org/LICENSE_1_0.txt) | ||
|  |  */ | ||
|  | 
 | ||
|  | 
 | ||
|  | #ifndef BOOST_NUMERIC_ODEINT_INTEGRATE_INTEGRATE_ADAPTIVE_HPP_INCLUDED | ||
|  | #define BOOST_NUMERIC_ODEINT_INTEGRATE_INTEGRATE_ADAPTIVE_HPP_INCLUDED | ||
|  | 
 | ||
|  | #include <boost/type_traits/is_same.hpp> | ||
|  | 
 | ||
|  | #include <boost/numeric/odeint/stepper/stepper_categories.hpp> | ||
|  | #include <boost/numeric/odeint/iterator/integrate/null_observer.hpp> | ||
|  | #include <boost/numeric/odeint/iterator/integrate/detail/integrate_adaptive.hpp> | ||
|  | 
 | ||
|  | namespace boost { | ||
|  | namespace numeric { | ||
|  | namespace odeint { | ||
|  | 
 | ||
|  | 
 | ||
|  | /* | ||
|  |  * the two overloads are needed in order to solve the forwarding problem | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class Time , class Observer > | ||
|  | size_t integrate_adaptive( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         Time start_time , Time end_time , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type::stepper_category stepper_category; | ||
|  |     return detail::integrate_adaptive( | ||
|  |             stepper , system , start_state , | ||
|  |             start_time , end_time , dt , | ||
|  |             observer , stepper_category() ); | ||
|  | 
 | ||
|  |     /* | ||
|  |      * Suggestion for a new extendable version: | ||
|  |      * | ||
|  |      * integrator_adaptive< Stepper , System, State , Time , Observer , typename Stepper::stepper_category > integrator; | ||
|  |      * return integrator.run( stepper , system , start_state , start_time , end_time , dt , observer ); | ||
|  |      */ | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief Second version to solve the forwarding problem, | ||
|  |  * can be called with Boost.Range as start_state. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class Time , class Observer > | ||
|  | size_t integrate_adaptive( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         Time start_time , Time end_time , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type::stepper_category stepper_category; | ||
|  |     return detail::integrate_adaptive( | ||
|  |             stepper , system , start_state , | ||
|  |             start_time , end_time , dt , | ||
|  |             observer , stepper_category() ); | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief integrate_adaptive without an observer. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class Time > | ||
|  | size_t integrate_adaptive( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         Time start_time , Time end_time , Time dt ) | ||
|  | { | ||
|  |     return integrate_adaptive( stepper , system , start_state , start_time , end_time , dt , null_observer() ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief Second version to solve the forwarding problem, | ||
|  |  * can be called with Boost.Range as start_state. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class Time > | ||
|  | size_t integrate_adaptive( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         Time start_time , Time end_time , Time dt ) | ||
|  | { | ||
|  |     return integrate_adaptive( stepper , system , start_state , start_time , end_time , dt , null_observer() ); | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | /************* DOXYGEN ************/ | ||
|  | 
 | ||
|  |     /**  | ||
|  |      * \fn integrate_adaptive( Stepper stepper , System system , State &start_state , Time start_time , Time end_time , Time dt , Observer observer ) | ||
|  |      * \brief Integrates the ODE with adaptive step size. | ||
|  |      *  | ||
|  |      * This function integrates the ODE given by system with the given stepper. | ||
|  |      * The observer is called after each step. If the stepper has no error  | ||
|  |      * control, the step size remains constant and the observer is called at | ||
|  |      * equidistant time points t0+n*dt. If the stepper is a ControlledStepper, | ||
|  |      * the step size is adjusted and the observer is called in non-equidistant | ||
|  |      * intervals. | ||
|  |      * | ||
|  |      * \param stepper The stepper to be used for numerical integration. | ||
|  |      * \param system Function/Functor defining the rhs of the ODE. | ||
|  |      * \param start_state The initial condition x0. | ||
|  |      * \param start_time The initial time t0. | ||
|  |      * \param end_time The final integration time tend. | ||
|  |      * \param dt The time step between observer calls, _not_ necessarily the  | ||
|  |      * time step of the integration. | ||
|  |      * \param observer Function/Functor called at equidistant time intervals. | ||
|  |      * \return The number of steps performed. | ||
|  |      */ | ||
|  | 
 | ||
|  | } // namespace odeint | ||
|  | } // namespace numeric | ||
|  | } // namespace boost | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | #endif // BOOST_NUMERIC_ODEINT_INTEGRATE_INTEGRATE_ADAPTIVE_HPP_INCLUDED |