new version

git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@267 331e1502-861f-0410-8da2-ba01fb791d7f

trunk/paradiseo-moeo/src/moeoFitnessAssignment.h

@@ -0,0 +1,118 @@
+// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
+
+//-----------------------------------------------------------------------------
+// moeoFitnessAssignment.h
+// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007
+/*
+    This library...
+
+    Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr
+ */
+//-----------------------------------------------------------------------------
+
+#ifndef MOEOFITNESSASSIGNMENT_H_
+#define MOEOFITNESSASSIGNMENT_H_
+
+#include <eoFunctor.h>
+#include <eoPop.h>
+
+/**
+ * Functor that sets the fitness values of a whole population.
+ */
+template < class MOEOT >
+class moeoFitnessAssignment : public eoUF < eoPop < MOEOT > &, void >
+{
+public:
+
+    /** The type for objective vector */
+    typedef typename MOEOT::ObjectiveVector ObjectiveVector;
+
+
+    /**
+     * 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
+     */
+    virtual void updateByDeleting(eoPop < MOEOT > & _pop, ObjectiveVector & _objVec) = 0;
+
+
+    /**
+     * Updates the fitness values of the whole population _pop by taking the deletion of the individual _moeo into account.
+     * @param _pop the population
+     * @param _moeo the individual
+     */
+    void updateByDeleting(eoPop < MOEOT > & _pop, MOEOT & _moeo)
+    {
+        updateByDeleting(_pop, _moeo.objectiveVector());
+    }
+
+};
+
+
+/**
+ * moeoDummyFitnessAssignment is a moeoFitnessAssignment that gives the value '0' as the individual's fitness for a whole population if it is invalid.
+ */
+template < class MOEOT >
+class moeoDummyFitnessAssignment : public moeoFitnessAssignment < MOEOT >
+{
+public:
+
+    /** The type for objective vector */
+    typedef typename MOEOT::ObjectiveVector ObjectiveVector;
+
+
+    /**
+     * Sets the fitness to '0' for every individuals of the population _pop if it is invalid
+     * @param _pop the population
+     */
+    void operator () (eoPop < MOEOT > & _pop)
+    {
+        for (unsigned idx = 0; idx<_pop.size (); idx++)
+        {
+            if (_pop[idx].invalidFitness())
+            {
+                // set the diversity to 0
+                _pop[idx].fitness(0.0);
+            }
+        }
+    }
+
+
+    /**
+     * 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...  ;-)
+    }
+
+};
+
+
+/**
+ * moeoScalarFitnessAssignment is a moeoFitnessAssignment for scalar strategies.
+ */
+template < class MOEOT >
+class moeoScalarFitnessAssignment : public moeoFitnessAssignment < MOEOT >
+    {};
+
+
+/**
+ * moeoCriterionBasedFitnessAssignment is a moeoFitnessAssignment for criterion-based strategies.
+ */
+template < class MOEOT >
+class moeoCriterionBasedFitnessAssignment : public moeoFitnessAssignment < MOEOT >
+    {};
+
+
+/**
+ * moeoParetoBasedFitnessAssignment is a moeoFitnessAssignment for Pareto-based strategies.
+ */
+template < class MOEOT >
+class moeoParetoBasedFitnessAssignment : public moeoFitnessAssignment < MOEOT >
+    {};
+
+
+#endif /*MOEOFITNESSASSIGNMENT_H_*/