A part of the GTOC6 Jupiter Capture Trajectory. More...

#include <mga_part.h>

Inheritance diagram for pagmo::problem::mga_part:

Public Member Functions
	mga_part (const std::vector< kep_toolbox::planet::planet_ptr >=construct_default_sequence(), const std::vector< std::vector< double > > tof=construct_default_tofs(), const kep_toolbox::epoch t0=kep_toolbox::epoch(11000), const kep_toolbox::array3D vinf_in=construct_default_v())
	Constructor. More...

	mga_part (const mga_part &)
	Copy Constructor. Performs a deep copy.

base_ptr	clone () const
	Clone method.

std::string	get_name () const
	Get problem's name. More...

std::string	pretty (const std::vector< double > &x) const
	Outputs a stream with the trajectory data. More...

void	set_tof (const std::vector< std::vector< double > > &)
	Sets the times of flight. More...

const std::vector< std::vector< double > > &	get_tof () const
	Gets the times of flight. More...

void	set_t0 (const kep_toolbox::epoch &)
	Sets the start epoch. More...

const kep_toolbox::epoch &	get_t0 () const
	Gets the start epoch. More...

void	set_vinf_in (const kep_toolbox::array3D &)
	Sets the start velocity. More...

const kep_toolbox::array3D &	get_vinf_in () const
	Gets the start velocity. More...

void	set_betas (const std::vector< std::vector< double > > &)
	Sets the betas. More...

std::vector< std::vector< double > >	get_betas () const
	Gets the betas. More...

void	set_rps (const std::vector< std::vector< double > > &)
	Sets the peri-planet bounds. More...

std::vector< std::vector< double > >	get_rps () const
	Gets the peri-planet bounds. More...

std::vector< kep_toolbox::planet::planet_ptr >	get_sequence () const
	Gets the planetary sequence defining the interplanetary mga-1dsm mission. More...

Public Member Functions inherited from pagmo::problem::base
	base (int, int=0, int=1, int=0, int=0, const double &=0)
	Constructor from global dimension, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

	base (int, int, int, int, int, const std::vector< double > &)
	Constructor from global dimension, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

	base (const double &, const double &, int, int=0, int=1, int=0, int=0, const double &=0)
	Constructor from values for lower and upper bounds, global dimension, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

	base (const decision_vector &, const decision_vector &, int=0, int=1, int=0, int=0, const double &=0)
	Constructor from upper/lower bounds, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

template<std::size_t N>
	base (const double(&v1)[N], const double(&v2)[N], int ni=0, int nf=1, int nc=0, int nic=0, const double &c_tol=0)
	Constructor from raw arrays, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

template<class Iterator1 , class Iterator2 >
	base (Iterator1 start1, Iterator1 end1, Iterator2 start2, Iterator2 end2, int ni=0, int nf=1, int nc=0, int nic=0, const double &c_tol=0)
	Constructor from iterators, integer dimension, fitness dimension, global constraints dimension, inequality constraints dimension and constraints tolerance. More...

virtual	~base ()
	Trivial destructor. More...

std::string	human_readable () const
	Return human readable representation of the problem. More...

bool	operator== (const base &) const
	Equality operator. More...

bool	operator!= (const base &) const
	Inequality operator. More...

bool	is_compatible (const base &) const
	Compatibility operator. More...

bool	compare_x (const decision_vector &, const decision_vector &) const
	Compare decision vectors. More...

bool	verify_x (const decision_vector &) const
	Verify compatibility of decision vector x with problem. More...

bool	compare_fc (const fitness_vector &, const constraint_vector &, const fitness_vector &, const constraint_vector &) const
	Simultaneous fitness-constraint comparison. More...

virtual void	pre_evolution (population &) const
	Pre-evolution hook. More...

virtual void	post_evolution (population &) const
	Post-evolution hook. More...

virtual void	set_sparsity (int &lenG, std::vector< int > &iGfun, std::vector< int > &jGvar) const
	Sets the sparsity pattern of the gradient. More...

const decision_vector &	get_lb () const
	Lower bounds getter. More...

const decision_vector &	get_ub () const
	Upper bounds getter. More...

void	set_bounds (const decision_vector &, const decision_vector &)
	Bounds setter from pagmo::decision_vector. More...

template<class Iterator1 , class Iterator2 >
void	set_bounds (Iterator1 start1, Iterator1 end1, Iterator2 start2, Iterator2 end2)
	Bounds setter from iterators. More...

template<std::size_t N>
void	set_bounds (const double(&v1)[N], const double(&v2)[N])
	Bounds setter from raw arrays. More...

void	set_bounds (const double &, const double &)
	Set bounds to specified values. More...

void	set_bounds (int, const double &, const double &)
	Set bounds to specified values. More...

void	set_lb (const decision_vector &)
	Set lower bounds from pagmo::decision_vector. More...

void	set_lb (int, const double &)
	Set specific lower bound to value. More...

void	set_lb (const double &)
	Set all lower bounds to value. More...

template<class Iterator >
void	set_lb (Iterator start, Iterator end)
	Lower bounds setter from iterators. More...

template<std::size_t N>
void	set_lb (const double(&v)[N])
	Lower bounds setter from raw array. More...

void	set_ub (const decision_vector &)
	Set upper bounds from pagmo::decision_vector. More...

void	set_ub (int, const double &)
	Set specific upper bound to value. More...

void	set_ub (const double &)
	Set all upper bounds to value. More...

template<class Iterator >
void	set_ub (Iterator start, Iterator end)
	Upper bounds setter from iterators. More...

template<std::size_t N>
void	set_ub (const double(&v)[N])
	Upper bounds setter from raw array. More...

unsigned int	get_fevals () const
	Return number of function evaluations. More...

unsigned int	get_cevals () const
	Return number of constraints function evaluations. More...

size_type	get_dimension () const
	Return global dimension. More...

size_type	get_i_dimension () const
	Return integer dimension. More...

f_size_type	get_f_dimension () const
	Return fitness dimension. More...

c_size_type	get_c_dimension () const
	Return global constraints dimension. More...

c_size_type	get_ic_dimension () const
	Return inequality constraints dimension. More...

const std::vector< double > &	get_c_tol () const
	Return constraints tolerance. More...

double	get_diameter () const
	Get the diameter of the problem. More...

constraint_vector	compute_constraints (const decision_vector &) const
	Compute constraints and return constraint vector. More...

void	compute_constraints (constraint_vector &, const decision_vector &) const
	Compute constraints and write them into contraint vector. More...

bool	compare_constraints (const constraint_vector &, const constraint_vector &) const
	Compare constraint vectors. More...

bool	test_constraint (const constraint_vector &, const c_size_type &) const
	Test i-th constraint of c (using tolerance information). More...

bool	feasibility_x (const decision_vector &) const
	Test feasibility of decision vector. More...

bool	feasibility_c (const constraint_vector &) const
	Test feasibility of constraint vector. More...

fitness_vector	objfun (const decision_vector &) const
	Return fitness of pagmo::decision_vector. More...

void	objfun (fitness_vector &, const decision_vector &) const
	Write fitness of pagmo::decision_vector into pagmo::fitness_vector. More...

bool	compare_fitness (const fitness_vector &, const fitness_vector &) const
	Compare fitness vectors. More...

void	reset_caches () const
	Reset internal caches. More...

const std::vector< constraint_vector > &	get_best_c (void) const
	Get the best known constraint vector. More...

const std::vector< decision_vector > &	get_best_x (void) const
	Get the best known decision vector. More...

const std::vector< fitness_vector > &	get_best_f (void) const
	Get the best known fitness vector. More...

void	set_best_x (const std::vector< decision_vector > &)
	Sets the best known decision vectors. More...

Protected Member Functions
void	objfun_impl (fitness_vector &, const decision_vector &) const
	Implementation of the objective function.

std::string	human_readable_extra () const
	Extra human readable info for the problem. More...

Protected Member Functions inherited from pagmo::problem::base
virtual bool	equality_operator_extra (const base &) const
	Extra requirements for equality. More...

virtual bool	compare_fc_impl (const fitness_vector &, const constraint_vector &, const fitness_vector &, const constraint_vector &) const
	Implementation of simultaneous fitness-constraint comparison. More...

void	estimate_sparsity (const decision_vector &, int &lenG, std::vector< int > &iGfun, std::vector< int > &jGvar) const
	Heuristics to estimate the sparsity pattern of the problem. More...

void	estimate_sparsity (int &lenG, std::vector< int > &iGfun, std::vector< int > &jGvar) const
	Heuristics to estimate the sparsity pattern of the problem. More...

virtual void	compute_constraints_impl (constraint_vector &, const decision_vector &) const
	Implementation of constraint computation. More...

virtual bool	compare_constraints_impl (const constraint_vector &, const constraint_vector &) const
	Implementation of constraint vector comparison. More...

virtual bool	compare_fitness_impl (const fitness_vector &, const fitness_vector &) const
	Implementation of fitness vectors comparison. More...

Friends
class	boost::serialization::access

Additional Inherited Members
Public Types inherited from pagmo::problem::base
typedef decision_vector::size_type	size_type
	Problem's size type: the same as pagmo::decision_vector's size type.

typedef fitness_vector::size_type	f_size_type
	Fitness' size type: the same as pagmo::fitness_vector's size type.

typedef constraint_vector::size_type	c_size_type
	Constraints' size type: the same as pagmo::constraint_vector's size type.

Static Public Attributes inherited from pagmo::problem::base
static const std::size_t	cache_capacity = 5
	Capacity of the internal caches.

Detailed Description

A part of the GTOC6 Jupiter Capture Trajectory.

A PyGMO global optimization problem (box-bounded, continuous) representing a part of the gtoc6 preliminary trajectory design

Decision vector: [beta1, rp1/rP1, eta1,T1] + [beta2, rp2/rP2, eta2,T2] + ....

Author: Dario Izzo (dario.nosp@m..izz.nosp@m.o@esa.nosp@m..int)

Definition at line 52 of file mga_part.h.

Constructor & Destructor Documentation

pagmo::problem::mga_part::mga_part	(	const std::vector< kep_toolbox::planet::planet_ptr >	seq = `construct_default_sequence()`,
		const std::vector< std::vector< double > >	tof = `construct_default_tofs()`,
		const kep_toolbox::epoch	t0 = `kep_toolbox::epoch(11000)`,
		const kep_toolbox::array3D	vinf_in = `construct_default_v()`
	)

Constructor.

Constructs a global optimization problem (box-bounded, continuous) representing a part og the gtoc6 jupiter moon tour

Parameters

[in]	seq	std::vector of kep_toolbox::planet_ptr containing the encounter sequence for the trajectoty (including the initial planet)
[in]	tof	time-of-flight vector containing lower and upper bounds (in days) for the various legs time of flights
[in]	t0	starting kep_toolbox::epoch
[in]	vinf_in	incoming velocity at the departing moon (before fly-by, absolute)

Exceptions

value_error	if the planets in seq do not all have the same central body gravitational constant
value_error	if tof has a size different from seq.size()
value_error	if seq.size() is < 2

Definition at line 56 of file mga_part.cpp.

Member Function Documentation

std::vector< std::vector< double > > pagmo::problem::mga_part::get_betas ( ) const

Gets the betas.

Returns: vector of betas bounds

Definition at line 335 of file mga_part.cpp.

std::string pagmo::problem::mga_part::get_name ( ) const

virtual

Get problem's name.

Default implementation will return the problem's mangled C++ name.

Returns: name of the problem.

Reimplemented from pagmo::problem::base.

Definition at line 283 of file mga_part.cpp.

std::vector< std::vector< double > > pagmo::problem::mga_part::get_rps ( ) const

Gets the peri-planet bounds.

Returns: vector of periplanets (altitudes in km)

Definition at line 368 of file mga_part.cpp.

std::vector< kep_toolbox::planet::planet_ptr > pagmo::problem::mga_part::get_sequence ( ) const

Gets the planetary sequence defining the interplanetary mga-1dsm mission.

Returns: An std::vector containing the kep_toolbox::planets

Definition at line 420 of file mga_part.cpp.

const kep_toolbox::epoch & pagmo::problem::mga_part::get_t0 ( ) const

Gets the start epoch.

Returns: start epoch

Definition at line 393 of file mga_part.cpp.

const std::vector< std::vector< double > > & pagmo::problem::mga_part::get_tof ( ) const

Gets the times of flight.

Returns: const reference to m_tof

Definition at line 308 of file mga_part.cpp.

const kep_toolbox::array3D & pagmo::problem::mga_part::get_vinf_in ( ) const

Gets the start velocity.

Returns: relative velocity (m/s)

Definition at line 411 of file mga_part.cpp.

std::string pagmo::problem::mga_part::human_readable_extra ( ) const

protectedvirtual

Extra human readable info for the problem.

Will return a formatted string containing the values vector, the weights vectors and the max weight. It is concatenated with the base::problem human_readable

Reimplemented from pagmo::problem::base.

Definition at line 429 of file mga_part.cpp.

std::string pagmo::problem::mga_part::pretty ( const std::vector< double > & x ) const

Outputs a stream with the trajectory data.

While the chromosome contains all necessary information to describe a trajectory, mission analysits often require a different set of data to evaluate its use. This method outputs a stream with information on the trajectory that is otherwise 'hidden' in the chromosome

Parameters

[in] x chromosome representing the trajectory in the optimization process

Returns: an std::string with launch dates, DV magnitues and other information on the trajectory

Definition at line 197 of file mga_part.cpp.

void pagmo::problem::mga_part::set_betas ( const std::vector< std::vector< double > > & betas )

Sets the betas.

This setter changes the problem bounds as to define a minimum and a maximum allowed beta for each leg. Remember that beta controls the inclination of the planetocentric hyperbola

Parameters

[in] betas vector of bounds for betas (rad)

Definition at line 319 of file mga_part.cpp.

void pagmo::problem::mga_part::set_rps ( const std::vector< std::vector< double > > & rps )

Sets the peri-planet bounds.

This setter changes the problem bounds as to define a minimum and a maximum allowed periplanet distance

Parameters

[in] rps vector of peri-planets (altitudes in km)

Definition at line 352 of file mga_part.cpp.

void pagmo::problem::mga_part::set_t0 ( const kep_toolbox::epoch & t0 )

Sets the start epoch.

This setter changes the starting epoch

Parameters

[in] t0 new start epoch

Definition at line 385 of file mga_part.cpp.

void pagmo::problem::mga_part::set_tof ( const std::vector< std::vector< double > > & tof )

Sets the times of flight.

This setter changes the problem bounds as to define a minimum and a maximum allowed total time of flight

Parameters

[in] tof vector of times of flight

Definition at line 294 of file mga_part.cpp.

void pagmo::problem::mga_part::set_vinf_in ( const kep_toolbox::array3D & vinf_in )

Sets the start velocity.

This setter changes the relative velocity of the spacecraft used to define the starting conditions on the traj

Parameters

[in] vinf_in new incoming relative velocity (m/s)

Definition at line 403 of file mga_part.cpp.

The documentation for this class was generated from the following files:

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation