t-moeoNSGAII.cpp

/*
* <t-moeoNSGAII.cpp>
* Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
* (C) OPAC Team, LIFL, 2002-2007
*
* Arnaud Liefooghe
*
* This software is governed by the CeCILL license under French law and
* abiding by the rules of distribution of free software.  You can  use,
* modify and/ or redistribute the software under the terms of the CeCILL
* license as circulated by CEA, CNRS and INRIA at the following URL
* "http://www.cecill.info".
*
* As a counterpart to the access to the source code and  rights to copy,
* modify and redistribute granted by the license, users are provided only
* with a limited warranty  and the software's author,  the holder of the
* economic rights,  and the successive licensors  have only  limited liability.
*
* In this respect, the user's attention is drawn to the risks associated
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* software by the user in light of its specific status of free software,
* that may mean  that it is complicated to manipulate,  and  that  also
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*/
//-----------------------------------------------------------------------------
// t-moeoNSGAII.cpp
//-----------------------------------------------------------------------------

#include <eo>
#include <es/eoRealInitBounded.h>
#include <es/eoRealOp.h>
#include <moeo>

//-----------------------------------------------------------------------------

class ObjectiveVectorTraits : public moeoObjectiveVectorTraits
{
public:
    static bool minimizing (int i)
    {
        return true;
    }
    static bool maximizing (int i)
    {
        return false;
    }
    static unsigned int nObjectives ()
    {
        return 2;
    }
};

typedef moeoRealObjectiveVector < ObjectiveVectorTraits > ObjectiveVector;

class Solution : public moeoRealVector < ObjectiveVector, double, double >
{
public:
    Solution() : moeoRealVector < ObjectiveVector, double, double > (1) {}
};

class TestEval : public moeoEvalFunc < Solution >
{
public:
    void operator () (Solution & _sol)
    {
        ObjectiveVector objVec;
        objVec[0] = _sol[0];
        objVec[1] = _sol[0] * _sol[0];
        _sol.objectiveVector(objVec);
    }
};

//-----------------------------------------------------------------------------

int main()
{
    std::cout << "[moeoNSGAII]" << std::endl;

    TestEval eval;
    eoQuadCloneOp < Solution > xover;
    eoUniformMutation < Solution > mutation(0.05);

    eoRealVectorBounds bounds(1, 1.0, 2.0);
    eoRealInitBounded < Solution > init(bounds);
    eoPop < Solution > pop(20, init);

    // build NSGA-II
    moeoNSGAII < Solution > algo(20, eval, xover, 1.0, mutation, 1.0);

    // run the algo
    algo(pop);

    // final pop
    std::cout << "Final population" << std::endl;
    std::cout << pop << std::endl;

    std::cout << "[moeoNSGAII] OK" << std::endl;
    return EXIT_SUCCESS;
}

//-----------------------------------------------------------------------------

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