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			9.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			223 lines
		
	
	
		
			9.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
|   | /* | ||
|  |  [auto_generated] | ||
|  |  boost/numeric/odeint/integrate/integrate_times.hpp | ||
|  | 
 | ||
|  |  [begin_description] | ||
|  |  Integration of ODEs with observation at user defined points | ||
|  |  [end_description] | ||
|  | 
 | ||
|  |  Copyright 2011-2013 Karsten Ahnert | ||
|  |  Copyright 2011-2015 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_TIMES_HPP_INCLUDED | ||
|  | #define BOOST_NUMERIC_ODEINT_INTEGRATE_INTEGRATE_TIMES_HPP_INCLUDED | ||
|  | 
 | ||
|  | #include <boost/type_traits/is_same.hpp> | ||
|  | 
 | ||
|  | #include <boost/range.hpp> | ||
|  | 
 | ||
|  | #include <boost/numeric/odeint/stepper/stepper_categories.hpp> | ||
|  | #include <boost/numeric/odeint/integrate/null_observer.hpp> | ||
|  | #include <boost/numeric/odeint/integrate/check_adapter.hpp> | ||
|  | #include <boost/numeric/odeint/integrate/detail/integrate_times.hpp> | ||
|  | 
 | ||
|  | namespace boost { | ||
|  | namespace numeric { | ||
|  | namespace odeint { | ||
|  | 
 | ||
|  | 
 | ||
|  | /* | ||
|  |  * \brief Integrates while calling the observer at the time points given by sequence [times_start, time_end) | ||
|  |  * the two overloads are needed in order to solve the forwarding problem | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class TimeIterator , class Time , class Observer , class StepOverflowChecker > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         TimeIterator times_start , TimeIterator times_end , Time dt , | ||
|  |         Observer observer , StepOverflowChecker checker ) | ||
|  | { | ||
|  |     // unwrap references | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type stepper_type; | ||
|  |     typedef typename odeint::unwrap_reference< Observer >::type observer_type; | ||
|  |     typedef typename odeint::unwrap_reference< StepOverflowChecker >::type checker_type; | ||
|  |     typedef typename stepper_type::stepper_category stepper_category; | ||
|  | 
 | ||
|  |     // pass on checked stepper and observer | ||
|  |     // checked_stepper/observer use references internally, so passing by value is fine | ||
|  |     return detail::integrate_times( | ||
|  |             checked_stepper<stepper_type, checker_type>(stepper, checker) , | ||
|  |             system , start_state , | ||
|  |             times_start , times_end , dt , | ||
|  |             checked_observer<observer_type, checker_type>(observer, checker), | ||
|  |             stepper_category() ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief Solves the forwarding problem, can be called with Boost.Range as start_state. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class TimeIterator , class Time , class Observer , class StepOverflowChecker > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         TimeIterator times_start , TimeIterator times_end , Time dt , | ||
|  |         Observer observer , StepOverflowChecker checker ) | ||
|  | { | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type stepper_type; | ||
|  |     typedef typename odeint::unwrap_reference< Observer >::type observer_type; | ||
|  |     typedef typename odeint::unwrap_reference< StepOverflowChecker >::type checker_type; | ||
|  |     typedef typename stepper_type::stepper_category stepper_category; | ||
|  | 
 | ||
|  |     stepper_type &st = stepper; | ||
|  |     observer_type &obs = observer; | ||
|  |     checker_type &chk = checker; | ||
|  | 
 | ||
|  |     return detail::integrate_times( | ||
|  |             checked_stepper<stepper_type, checker_type>(stepper, checker) , | ||
|  |             system , start_state , | ||
|  |             times_start , times_end , dt , | ||
|  |             checked_observer<observer_type, checker_type>(observer, checker), | ||
|  |             stepper_category() ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief The same function as above, but with the observation times given as range. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class TimeRange , class Time , class Observer , class StepOverflowChecker > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         const TimeRange × , Time dt , | ||
|  |         Observer observer , StepOverflowChecker checker ) | ||
|  | { | ||
|  |     return integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             boost::begin( times ) , boost::end( times ) , dt , observer , checker ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  |  * \brief Solves the forwarding problem, can be called with Boost.Range as start_state. | ||
|  |  */ | ||
|  | template< class Stepper , class System , class State , class TimeRange , class Time , class Observer , class StepOverflowChecker > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         const TimeRange × , Time dt , | ||
|  |         Observer observer , StepOverflowChecker checker ) | ||
|  | { | ||
|  |     return integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             boost::begin( times ) , boost::end( times ) , dt , observer , checker ); | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | /* | ||
|  | * The same functions as above, but without a StepOverflowChecker | ||
|  | */ | ||
|  | template< class Stepper , class System , class State , class TimeIterator , class Time , class Observer > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         TimeIterator times_start , TimeIterator times_end , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type::stepper_category stepper_category; | ||
|  |     // simply don't use checked_* adapters | ||
|  |     return detail::integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             times_start , times_end , dt , | ||
|  |             observer , stepper_category() ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  | * \brief Solves the forwarding problem, can be called with Boost.Range as start_state. | ||
|  | */ | ||
|  | template< class Stepper , class System , class State , class TimeIterator , class Time , class Observer > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         TimeIterator times_start , TimeIterator times_end , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     typedef typename odeint::unwrap_reference< Stepper >::type::stepper_category stepper_category; | ||
|  |     return detail::integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             times_start , times_end , dt , | ||
|  |             observer , stepper_category() ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  | * \brief The same function as above, but with the observation times given as range. | ||
|  | */ | ||
|  | template< class Stepper , class System , class State , class TimeRange , class Time , class Observer > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , State &start_state , | ||
|  |         const TimeRange × , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     return integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             boost::begin( times ) , boost::end( times ) , dt , observer ); | ||
|  | } | ||
|  | 
 | ||
|  | /** | ||
|  | * \brief Solves the forwarding problem, can be called with Boost.Range as start_state. | ||
|  | */ | ||
|  | template< class Stepper , class System , class State , class TimeRange , class Time , class Observer > | ||
|  | size_t integrate_times( | ||
|  |         Stepper stepper , System system , const State &start_state , | ||
|  |         const TimeRange × , Time dt , | ||
|  |         Observer observer ) | ||
|  | { | ||
|  |     return integrate_times( | ||
|  |             stepper , system , start_state , | ||
|  |             boost::begin( times ) , boost::end( times ) , dt , observer); | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | /********* DOXYGEN ***********/ | ||
|  | 
 | ||
|  |     /** | ||
|  |      * \fn size_t integrate_times( Stepper stepper , System system , State &start_state , TimeIterator times_start , TimeIterator times_end , Time dt , Observer observer ) | ||
|  |      * \brief Integrates the ODE with observer calls at given time points. | ||
|  |      * | ||
|  |      * Integrates the ODE given by system using the given stepper. This function | ||
|  |      * does observer calls at the subsequent time points given by the range  | ||
|  |      * times_start, times_end. If the stepper has not step size control, the  | ||
|  |      * step size might be reduced occasionally to ensure observer calls exactly | ||
|  |      * at the time points from the given sequence. If the stepper is a  | ||
|  |      * ControlledStepper, the step size is adjusted to meet the error bounds,  | ||
|  |      * but also might be reduced occasionally to ensure correct observer calls. | ||
|  |      * If a DenseOutputStepper is provided, the dense output functionality is | ||
|  |      * used to call the observer at the given times. The end time of the  | ||
|  |      * integration is always *(end_time-1). | ||
|  |      * If a max_step_checker is provided as StepOverflowChecker, a | ||
|  |      * no_progress_error is thrown if too many steps (default: 500) are | ||
|  |      * performed without progress, i.e. in between observer calls. If no | ||
|  |      * checker is provided, no such overflow check is performed. | ||
|  |      * | ||
|  |      * \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 times_start Iterator to the start time | ||
|  |      * \param times_end Iterator to the end time | ||
|  |      * \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. | ||
|  |      * \param checker [optional] Functor to check for step count overflows, if no | ||
|  |      * checker is provided, no exception is thrown. | ||
|  |      * \return The number of steps performed. | ||
|  |      */ | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | } // namespace odeint | ||
|  | } // namespace numeric | ||
|  | } // namespace boost | ||
|  | 
 | ||
|  | 
 | ||
|  | 
 | ||
|  | #endif // BOOST_NUMERIC_ODEINT_INTEGRATE_INTEGRATE_TIMES_HPP_INCLUDED |