merge ParadisEO-MOEO v-1.0

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@400 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-moeo/src/fitness/moeoReferencePointIndicatorBasedFitnessAssignment.h

@@ -0,0 +1,109 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// moeoReferencePointIndicatorBasedFitnessAssignment.h
+// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
+/*
+    This library...
+
+    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
+ */
+//-----------------------------------------------------------------------------
+
+#ifndef MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
+#define MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_
+
+#include <math.h>
+#include <eoPop.h>
+#include <fitness/moeoFitnessAssignment.h>
+#include <metric/moeoNormalizedSolutionVsSolutionBinaryMetric.h>
+
+/**
+ * Fitness assignment sheme based a Reference Point and a Quality Indicator.
+ */
+template < class MOEOT >
+class moeoReferencePointIndicatorBasedFitnessAssignment : public moeoFitnessAssignment < MOEOT >
+{
+public:
+
+    /** The type of objective vector */
+    typedef typename MOEOT::ObjectiveVector ObjectiveVector;
+
+    /**
+     * Ctor
+     * @param _refPoint the reference point
+     * @param _metric the quality indicator
+     */
+    moeoReferencePointIndicatorBasedFitnessAssignment (ObjectiveVector & _refPoint, moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & _metric) :
+            refPoint(_refPoint), metric(_metric)
+    {}
+
+
+    /**
+     * Sets the fitness values for every solution contained in the population _pop
+     * @param _pop the population
+     */
+    void operator()(eoPop < MOEOT > & _pop)
+    {
+        // 1 - setting of the bounds
+        setup(_pop);
+        // 2 - setting fitnesses
+        setFitnesses(_pop);
+    }
+
+
+    /**
+     * Updates the fitness values of the whole population _pop by taking the deletion of the objective vector _objVec into account.
+     * @param _pop the population
+     * @param _objVec the objective vector
+     */
+    void updateByDeleting(eoPop < MOEOT > & _pop, ObjectiveVector & _objVec)
+    {
+        // nothing to do  ;-)
+    }
+
+
+protected:
+
+    /** the reference point */
+    ObjectiveVector & refPoint;
+    /** the quality indicator */
+    moeoNormalizedSolutionVsSolutionBinaryMetric < ObjectiveVector, double > & metric;
+
+
+    /**
+     * Sets the bounds for every objective using the min and the max value for every objective vector of _pop (and the reference point)
+     * @param _pop the population
+     */
+    void setup(const eoPop < MOEOT > & _pop)
+    {
+        double min, max;
+        for (unsigned int i=0; i<ObjectiveVector::Traits::nObjectives(); i++)
+        {
+            min = refPoint[i];
+            max = refPoint[i];
+            for (unsigned int j=0; j<_pop.size(); j++)
+            {
+                min = std::min(min, _pop[j].objectiveVector()[i]);
+                max = std::max(max, _pop[j].objectiveVector()[i]);
+            }
+            // setting of the bounds for the objective i
+            metric.setup(min, max, i);
+        }
+    }
+
+    /**
+     * Sets the fitness of every individual contained in the population _pop
+     * @param _pop the population
+     */
+    void setFitnesses(eoPop < MOEOT > & _pop)
+    {
+        for (unsigned int i=0; i<_pop.size(); i++)
+        {
+            _pop[i].fitness(- metric(_pop[i].objectiveVector(), refPoint) );
+        }
+    }
+
+};
+
+#endif /*MOEOREFERENCEPOINTINDICATORBASEDFITNESSASSIGNMENT_H_*/