eoRealBoundModifier.h

// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-

//-----------------------------------------------------------------------------
// eoRealBoundModifier.h
// (c) OPAC 2007
/*
    Contact: paradiseo-help@lists.gforge.inria.fr
 */
//-----------------------------------------------------------------------------

#ifndef EOREALBOUNDMODIFIER_H
#define EOREALBOUNDMODIFIER_H

//-----------------------------------------------------------------------------
#include <eoFunctor.h>
#include <utils/eoRealVectorBounds.h>
//-----------------------------------------------------------------------------

class eoRealBoundModifier: public eoBF < eoRealBaseVectorBounds &,unsigned,void > {};


class eoDummyRealBoundModifier: public eoRealBoundModifier
{
public:

    eoDummyRealBoundModifier (){}

    void operator() (eoRealBaseVectorBounds & _bnds,unsigned _i){}
};



class eoExpDecayingBoundModifier: public eoRealBoundModifier
{
public:
        
    eoExpDecayingBoundModifier (unsigned _stopCriteria,
                                double _alpha,
                                eoValueParam<unsigned> & _genCounter):
                                                stopCriteria(_stopCriteria),
                                                        alpha(_alpha),
                                                genCounter(_genCounter){}
            
            
    void operator() (eoRealBaseVectorBounds & _bnds,unsigned _i)
    {
        double newMaxBound=(1-pow((double)genCounter.value()/stopCriteria,alpha))*_bnds.maximum(_i);

        // should delete the old eoRealBounds ?
        _bnds[_i]=new eoRealInterval(_bnds.minimum(_i),std::max(_bnds.minimum(_i),newMaxBound));
    }


protected:
    unsigned stopCriteria;
    double alpha;
    eoValueParam<unsigned> & genCounter;

};

#endif/*EOREALBOUNDMODIFIER_H*/

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