include/libperiodicfunctions.h

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/********************************************************************************
 *  Neural Network Framework.                                                   *
 *  Copyright (C) 2005-2008 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 "types.h"

#include "outputfunction.h"

namespace nnfw {

class NNFW_API PeriodicFunction : public OutputFunction {
public:
    
    PeriodicFunction( Real phase = 0.0, Real span = 1.0, Real amplitude = 1.0 );
    
    PeriodicFunction( PropertySettings& prop );
    
    virtual ~PeriodicFunction() { /* Nothing to do */ };
    

    
    bool setPhase( const Variant& v );
    Variant phase();
    
    bool setSpan( const Variant& v );
    Variant span();
    
    bool setAmplitude( const Variant& v );
    Variant amplitude();
    
    virtual void apply( RealVec& inputs, RealVec& outputs ) = 0;

    virtual PeriodicFunction* clone() const = 0;
    

protected:
    Real phasev;
    Real spanv;
    Real amplitudev;
};

class NNFW_API SawtoothFunction : public PeriodicFunction {
public:
    
    SawtoothFunction( Real phase = 0.0, Real span = 1.0, Real amplitude = 1.0 );
    
    SawtoothFunction( PropertySettings& prop );
    
    virtual ~SawtoothFunction() { /* Nothing to do */ };
    

    
    virtual void apply( RealVec& inputs, RealVec& outputs );

    virtual SawtoothFunction* clone() const;
    
};

class NNFW_API TriangleFunction : public PeriodicFunction {
public:
    
    TriangleFunction( Real phase = 0.0, Real span = 1.0, Real amplitude = 1.0 );
    
    TriangleFunction( PropertySettings& prop );
    
    virtual ~TriangleFunction() { /* Nothing to do */ };
    

    
    virtual void apply( RealVec& inputs, RealVec& outputs );

    virtual TriangleFunction* clone() const;
    

};

class NNFW_API SinFunction : public PeriodicFunction {
public:
    
    SinFunction( Real phase = 0.0, Real span = 1.0, Real amplitude = 1.0 );

    SinFunction( PropertySettings& prop );
    
    virtual ~SinFunction() { /* Nothing to do */ };
    


    Real frequency();
    
    virtual void apply( RealVec& inputs, RealVec& outputs );

    virtual SinFunction* clone() const;
    
};

class NNFW_API PseudoGaussFunction : public PeriodicFunction {
public:
    
    PseudoGaussFunction( Real phase = 0.0, Real span = 1.0, Real amplitude = 1.0 );
    
    PseudoGaussFunction( PropertySettings& prop );
    
    virtual ~PseudoGaussFunction() { /* Nothing to do */ };
    

    
    virtual void apply( RealVec& inputs, RealVec& outputs );

    virtual PseudoGaussFunction* clone() const;
    

};

}

#endif

Copyright © 2005-2008 G. Massera

Contact: emmegian (at) yahoo (dot) it

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