decompose.h

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#ifndef PAGMO_PROBLEM_DECOMPOSE_H
#define PAGMO_PROBLEM_DECOMPOSE_H

#include <string>

#include "../serialization.h"
#include "../types.h"
#include "base_meta.h"
#include "base.h"
#include "zdt.h"

namespace pagmo{ namespace problem {



class __PAGMO_VISIBLE decompose : public base_meta
{
        public:
                enum method_type {
                 WEIGHTED=0, 
                 TCHEBYCHEFF=1, 
                 BI=2 
                };

                decompose(const base & = zdt(1,2),
                                  method_type = WEIGHTED,
                                  const std::vector<double> & = std::vector<double>(),
                                  const std::vector<double> & = std::vector<double>(),
                                  const bool = false);
                base_ptr clone() const;
                std::string get_name() const;
                const std::vector<double>& get_weights() const;
                void compute_decomposed_fitness(fitness_vector &, const fitness_vector &) const;
                void compute_decomposed_fitness(fitness_vector &, const fitness_vector &, const fitness_vector &) const;
                void compute_original_fitness(fitness_vector &, const decision_vector &) const;
                fitness_vector get_ideal_point() const;
                void set_ideal_point(const fitness_vector &f);


        protected:
                std::string human_readable_extra() const;
                void objfun_impl(fitness_vector &, const decision_vector &) const;
        private:
                friend class boost::serialization::access;
                template <class Archive>
                void serialize(Archive &ar, const unsigned int)
                {
                        ar & boost::serialization::base_object<base_meta>(*this);
                        ar & m_method;
                        ar & m_weights;
                        ar & m_z;
                        ar & const_cast<bool&>(m_adapt_ideal);
                }
                method_type m_method;
                fitness_vector m_weights;
                mutable fitness_vector m_z;
                const bool m_adapt_ideal;
};

}} //namespaces

BOOST_CLASS_EXPORT_KEY(pagmo::problem::decompose)

#endif // PAGMO_PROBLEM_DECOMPOSE_H