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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.
*/
#include "fl/term/Activated.h"
#include "fl/imex/FllExporter.h"
namespace fl {
Activated::Activated(const Term* term, scalar degree, const TNorm* implication)
: Term(""), _term(term), _degree(degree), _implication(implication) {
if (term) setName(term->getName());
}
Activated::~Activated() { }
std::string Activated::className() const {
return "Activated";
}
Complexity Activated::complexity() const {
Complexity result;
result.comparison(3);
if (_implication) {
result += _implication->complexity();
}
if (_term) {
result += _term->complexity();
}
return result;
}
scalar Activated::membership(scalar x) const {
if (Op::isNaN(x)) return fl::nan;
if (not _term)
throw Exception("[activation error] no term available to activate", FL_AT);
if (not _implication)
throw Exception("[implication error] implication operator needed "
"to activate " + getTerm()->toString(), FL_AT);
return _implication->compute(_term->membership(x), _degree);
}
std::string Activated::parameters() const {
FllExporter exporter;
std::ostringstream ss;
ss << Op::str(getDegree()) << " " << exporter.toString(getImplication()) << " "
<< exporter.toString(getTerm());
return ss.str();
}
void Activated::configure(const std::string& parameters) {
FL_IUNUSED(parameters);
}
std::string Activated::toString() const {
FllExporter exporter;
std::ostringstream ss;
if (getImplication()) {
ss << exporter.toString(getImplication()) << "("
<< Op::str(getDegree()) << ","
<< getTerm()->getName() << ")";
} else {
ss << "(" << Op::str(getDegree()) << "*" //"\u2297: (*)"
<< getTerm()->getName() << ")";
}
return ss.str();
}
void Activated::setTerm(const Term* term) {
this->_term = term;
}
const Term* Activated::getTerm() const {
return this->_term;
}
void Activated::setDegree(scalar degree) {
this->_degree = degree;
}
scalar Activated::getDegree() const {
return this->_degree;
}
void Activated::setImplication(const TNorm* implication) {
this->_implication = implication;
}
const TNorm* Activated::getImplication() const {
return this->_implication;
}
Activated* Activated::clone() const {
return new Activated(*this);
}
}
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