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/*
fuzzylite (R), a fuzzy logic control library in C++.
Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved.
Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com>
This file is part of fuzzylite.
fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the FuzzyLite License included with the software.
You should have received a copy of the FuzzyLite License along with
fuzzylite. If not, see <http://www.fuzzylite.com/license/>.
fuzzylite is a registered trademark of FuzzyLite Limited.
*/
#ifndef FL_SNORMFUNCTION_H
#define FL_SNORMFUNCTION_H
#include "fl/norm/SNorm.h"
#include "fl/term/Function.h"
namespace fl {
/**
The SNormFunction class is a customizable SNorm via Function, which
computes any function based on the @f$a@f$ and @f$b@f$ values.
This SNorm is not registered with the SNormFactory.
@author Juan Rada-Vilela, Ph.D.
@see Function
@see SNorm
@see Norm
@see SNormFactory
@since 6.0
*/
class FL_API SNormFunction FL_IFINAL : public SNorm {
private:
Function _function;
public:
explicit SNormFunction(const std::string& formula = "");
/**
Returns the reference to the Function
@return the reference to the Function
*/
Function& function();
/**
Loads the function with the given formula
@param formula is a valid formula in infix notation
*/
void setFormula(const std::string& formula);
/**
Returns the formula loaded into the function
@return the formula loaded into the function
*/
std::string getFormula() const;
std::string className() const FL_IOVERRIDE;
Complexity complexity() const FL_IOVERRIDE;
/**
Computes the S-Norm utilizing the given function via
SNormFunction::setFormula(), which automatically assigns the values
of @f$a@f$ and @f$b@f$.
@param a is a membership function value
@param b is a membership function value
@return the evaluation of the function
*/
scalar compute(scalar a, scalar b) const FL_IOVERRIDE;
SNormFunction* clone() const FL_IOVERRIDE;
static SNorm* constructor();
};
}
#endif /* FL_SNORMFUNCTION_H */
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