PaGMO  1.1.5
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pagmo::problem::mga_incipit_cstrs Class Reference

The beginning of the GTOC6 Jupiter Capture Trajectory. More...

#include <mga_incipit_cstrs.h>

Inheritance diagram for pagmo::problem::mga_incipit_cstrs:
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Public Member Functions

 mga_incipit_cstrs (const std::vector< kep_toolbox::planet::planet_ptr >=construct_default_sequence(), const kep_toolbox::epoch t0_l=kep_toolbox::epoch(7305.0), const kep_toolbox::epoch t0_u=kep_toolbox::epoch(11323.0), const std::vector< std::vector< double > > tof=construct_default_tofs(), double Tmax=365.25, double Dmin=0.2)
 Constructor. More...
 
 mga_incipit_cstrs (const mga_incipit_cstrs &)
 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...
 
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_vectorget_lb () const
 Lower bounds getter. More...
 
const decision_vectorget_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.
 
void compute_constraints_impl (constraint_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 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

The beginning of the GTOC6 Jupiter Capture Trajectory.

A PyGMO global optimization problem (box-bounded, continuous) representing a capture in the Jupiter system. Two constraints are considered: 1. Closest distance, 2. Time of flight

Decision vector: [t0,u,v,T0] + [beta1, rp1/rP1, eta1,T1] + ....

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

Definition at line 51 of file mga_incipit_cstrs.h.

Constructor & Destructor Documentation

pagmo::problem::mga_incipit_cstrs::mga_incipit_cstrs ( const std::vector< kep_toolbox::planet::planet_ptr >  seq = construct_default_sequence(),
const kep_toolbox::epoch  t0_l = kep_toolbox::epoch(7305.0),
const kep_toolbox::epoch  t0_u = kep_toolbox::epoch(11323.0),
const std::vector< std::vector< double > >  tof = construct_default_tofs(),
double  Tmax = 365.25,
double  Dmin = 0.2 
)

Constructor.

Constructs a global optimization problem (box-bounded, continuous) representing an interplanetary trajectory modelled as a Multiple Gravity Assist trajectory that allows one only Deep Space Manouvre between each leg.

Parameters
[in]seqstd::vector of kep_toolbox::planet_ptr containing the encounter sequence for the trajectoty (including the initial planet)
[in]t0_lkep_toolbox::epoch representing the lower bound for the launch epoch
[in]t0_ukep_toolbox::epoch representing the upper bound for the launch epoch
[in]toftime-of-flight vector containing lower and upper bounds (in days) for the various legs time of flights
[in]Tmaxmaximum time of flight
[in]Dminminimum distance from Jupiter (for radiation protection)
Exceptions
value_errorif the planets in seq do not all have the same central body gravitational constant
value_errorif tof has a size different from seq.size()

Definition at line 56 of file mga_incipit_cstrs.cpp.

Member Function Documentation

std::string pagmo::problem::mga_incipit_cstrs::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 381 of file mga_incipit_cstrs.cpp.

std::vector< kep_toolbox::planet::planet_ptr > pagmo::problem::mga_incipit_cstrs::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 415 of file mga_incipit_cstrs.cpp.

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

Gets the times of flight.

Returns
[out] vector of times of flight

Definition at line 391 of file mga_incipit_cstrs.cpp.

std::string pagmo::problem::mga_incipit_cstrs::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 424 of file mga_incipit_cstrs.cpp.

std::string pagmo::problem::mga_incipit_cstrs::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]xchromosome 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 279 of file mga_incipit_cstrs.cpp.

void pagmo::problem::mga_incipit_cstrs::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]tofvector of times of flight

Definition at line 401 of file mga_incipit_cstrs.cpp.


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