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# selectOne.cpp

    00001 /*
    00002     PyEO
    00003
    00004     Copyright (C) 2003 Maarten Keijzer
    00005
    00006     This program is free software; you can redistribute it and/or modify
    00007     it under the terms of the GNU General Public License as published by
    00008     the Free Software Foundation; either version 2 of the License, or
    00009     (at your option) any later version.
    00010
    00011     This program is distributed in the hope that it will be useful,
    00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00014     GNU General Public License for more details.
    00015
    00016     You should have received a copy of the GNU General Public License
    00017     along with this program; if not, write to the Free Software
    00018     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    00019 */
    00020
    00021 #include <eoSelectOne.h>
    00022 #include <eoDetTournamentSelect.h>
    00023 #include <eoRandomSelect.h>
    00024 #include <eoStochTournamentSelect.h>
    00025 #include <eoTruncatedSelectOne.h>
    00026 #include <eoSequentialSelect.h>
    00027
    00028 #include "PyEO.h"
    00029 #include "pickle.h"
    00030 #include "def_abstract_functor.h"
    00031
    00032 using namespace boost::python;
    00033
    00034 class eoSelectOneWrapper : public eoSelectOne<PyEO>
    00035 {
    00036     public:
    00037     PyObject* self;
    00038     eoSelectOneWrapper(PyObject* p) : self(p) {}
    00039     const PyEO& operator()(const eoPop<PyEO>& pop)
    00040     {
    00041         return boost::python::call_method< const PyEO& >(self, "__call__", boost::ref(pop));
    00042     }
    00043 };
    00044
    00045 template <class Select>
    00046 void add_select(std::string name)
    00047 {
    00048     class_<Select, bases<eoSelectOne<PyEO> > >(name.c_str(), init<>() )
    00049         .def("__call__", &Select::operator(), return_internal_reference<>() )
    00050         ;
    00051 }
    00052
    00053 template <class Select, class Init>
    00054 void add_select(std::string name, Init init)
    00055 {
    00056     class_<Select, bases<eoSelectOne<PyEO> > >(name.c_str(), init)
    00057         .def("__call__", &Select::operator(), return_internal_reference<>() )
    00058         ;
    00059 }
    00060
    00061 template <class Select, class Init1, class Init2>
    00062 void add_select(std::string name, Init1 init1, Init2 init2)
    00063 {
    00064     class_<Select, bases<eoSelectOne<PyEO> > >(name.c_str(), init1)
    00065         .def( init2 )
    00066         .def("__call__", &Select::operator(), return_internal_reference<>() )
    00067         .def("setup", &Select::setup);
    00068 }
    00069
    00070 void selectOne()
    00071 {
    00072     /* Concrete classes */
    00073
    00074     pickle(class_<eoHowMany>("eoHowMany", init<>())
    00075         .def( init<double>() )
    00076         .def( init<double, bool>() )
    00077         .def( init<int>() )
    00078         .def("__call__", &eoHowMany::operator())
    00079         .def("__neg__", &eoHowMany::operator-)
    00080           );
    00081
    00082     class_<eoSelectOne<PyEO>, eoSelectOneWrapper, boost::noncopyable>("eoSelectOne", init<>())
    00083         .def("__call__", &eoSelectOneWrapper::operator(), return_internal_reference<>() )
    00084         .def("setup", &eoSelectOne<PyEO>::setup);
    00085
    00086     /* SelectOne derived classes */
    00087
    00088     add_select<eoDetTournamentSelect<PyEO> >("eoDetTournamentSelect", init<>(), init<unsigned>() );
    00089     add_select<eoStochTournamentSelect<PyEO> >("eoStochTournamentSelect", init<>(), init<double>() );
    00090     add_select<eoTruncatedSelectOne<PyEO>  >("eoTruncatedSelectOne",
    00091             init<eoSelectOne<PyEO>&, double>()[WC1], init<eoSelectOne<PyEO>&, eoHowMany >()[WC1] );
    00092
    00093     // eoProportionalSelect is not feasible to implement at this point as fitness is not recognizable as a float
    00094     // use eoDetTournament instead: with a t-size of 2 it is equivalent to eoProportional with linear scaling
    00095     //add_select<eoProportionalSelect<PyEO> >("eoProportionalSelect", init<eoPop<PyEO>&>() );
    00096
    00097     add_select<eoRandomSelect<PyEO> >("eoRandomSelect");
    00098     add_select<eoBestSelect<PyEO> >("eoBestSelect");
    00099     add_select<eoNoSelect<PyEO> >("eoNoSelect");
    00100
    00101     add_select<eoSequentialSelect<PyEO> >("eoSequentialSelect", init<>(), init<bool>());
    00102     add_select<eoEliteSequentialSelect<PyEO> >("eoEliteSequentialSelect");
    00103     /*
    00104      * eoSelectFromWorth.h:class eoSelectFromWorth : public eoSelectOne<EOT>
    00105
    00106     */
    00107 }