libperiodicfunctions.h

Go to the documentation of this file.

/********************************************************************************
 *  Neural Network Framework.                                                   *
 *  Copyright (C) 2005-2011 Gianluca Massera <emmegian@yahoo.it>                *
 *                                                                              *
 *  This program is free software; you can redistribute it and/or modify        *
 *  it under the terms of the GNU General Public License as published by        *
 *  the Free Software Foundation; either version 2 of the License, or           *
 *  (at your option) any later version.                                         *
 *                                                                              *
 *  This program is distributed in the hope that it will be useful,             *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of              *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               *
 *  GNU General Public License for more details.                                *
 *                                                                              *
 *  You should have received a copy of the GNU General Public License           *
 *  along with this program; if not, write to the Free Software                 *
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA  *
 ********************************************************************************/

#ifndef LIBPERIODICFUNCTIONS_H
#define LIBPERIODICFUNCTIONS_H

#include "nnfwconfig.h"

#include "outputfunction.h"

namespace farsa {

class FARSA_NNFW_API PeriodicFunction : public OutputFunction {
public:
    PeriodicFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
    virtual ~PeriodicFunction() { /* Nothing to do */ };
    virtual void apply( DoubleVector& inputs, DoubleVector& outputs ) = 0;
    virtual void configure(ConfigurationParameters& params, QString prefix);
    virtual void save(ConfigurationParameters& params, QString prefix);
    double phase;
    double span;
    double amplitude;
};

class FARSA_NNFW_API SawtoothFunction : public PeriodicFunction {
public:
    SawtoothFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
    virtual ~SawtoothFunction() { /* Nothing to do */ };
    virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
    virtual void configure(ConfigurationParameters& params, QString prefix);
    virtual void save(ConfigurationParameters& params, QString prefix);
};

class FARSA_NNFW_API TriangleFunction : public PeriodicFunction {
public:
    TriangleFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
    virtual ~TriangleFunction() { /* Nothing to do */ };
    virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
    virtual void configure(ConfigurationParameters& params, QString prefix);
    virtual void save(ConfigurationParameters& params, QString prefix);
};

class FARSA_NNFW_API SinFunction : public PeriodicFunction {
public:
    SinFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
    virtual ~SinFunction() { /* Nothing to do */ };
    double frequency();
    virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
    virtual void configure(ConfigurationParameters& params, QString prefix);
    virtual void save(ConfigurationParameters& params, QString prefix);
};

class FARSA_NNFW_API PseudoGaussFunction : public PeriodicFunction {
public:
    PseudoGaussFunction( double phase = 0.0, double span = 1.0, double amplitude = 1.0 );
    virtual ~PseudoGaussFunction() { /* Nothing to do */ };
    virtual void apply( DoubleVector& inputs, DoubleVector& outputs );
    virtual void configure(ConfigurationParameters& params, QString prefix);
    virtual void save(ConfigurationParameters& params, QString prefix);
};

}

#endif