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113 lines
3.1 KiB
C++
113 lines
3.1 KiB
C++
/* Copyright 2010 Juan Rada-Vilela
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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* CompoundTerm.cpp
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*
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* Created on: Dec 13, 2009
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* Author: jcrada
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*/
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#include "CompoundTerm.h"
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namespace fl {
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CompoundTerm::CompoundTerm() :
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LinguisticTerm() {
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}
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CompoundTerm::CompoundTerm(const std::string& name, flScalar minimum,
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flScalar maximum) :
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LinguisticTerm(name, minimum, maximum) {
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}
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CompoundTerm::CompoundTerm(const FuzzyOperator& fuzzy_op, const std::string& name,
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flScalar minimum, flScalar maximum) :
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LinguisticTerm(fuzzy_op, name, minimum, maximum) {
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}
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CompoundTerm::~CompoundTerm() {
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clear();
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}
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void CompoundTerm::addTerm(const LinguisticTerm& term) {
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_terms.push_back(term.clone());
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if (term.minimum() < minimum() || isinf(minimum())) {
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setMinimum(term.minimum());
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}
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if (term.maximum() > maximum() || isinf(maximum())) {
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setMaximum(term.maximum());
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}
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}
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const LinguisticTerm& CompoundTerm::term(int index) const {
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return *this->_terms[index];
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}
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void CompoundTerm::removeTerm(int index){
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LinguisticTerm* t = this->_terms[index];
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this->_terms.erase(this->_terms.begin() + index);
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delete t;
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}
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int CompoundTerm::numberOfTerms() const{
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return this->_terms.size();
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}
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void CompoundTerm::clear() {
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for (size_t i = 0; i < _terms.size(); ++i) {
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delete _terms[i];
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}
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_terms.clear();
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setMinimum(-INFINITY);
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setMaximum(INFINITY);
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}
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CompoundTerm* CompoundTerm::clone() const {
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CompoundTerm* result = new CompoundTerm;
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for (int i = 0 ; i < numberOfTerms(); ++i){
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result->addTerm(term(i));
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}
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return result;
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}
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flScalar CompoundTerm::membership(flScalar crisp) const {
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flScalar max = flScalar(0);
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for (size_t i = 0; i < _terms.size(); ++i) {
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max = fuzzyOperator().aggregation().execute(max, _terms[i]->membership(crisp));
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}
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return fuzzyOperator().modulation().execute(modulation(), max);
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}
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LinguisticTerm::eMembershipFunction CompoundTerm::type() const {
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return MF_COMPOUND;
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}
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std::string CompoundTerm::toString() const {
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std::stringstream ss;
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ss << LinguisticTerm::toString();
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ss << "Compound (";
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for (size_t i = 0; i < _terms.size(); ++i) {
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ss << _terms[i]->toString();
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if (i < _terms.size() -1 ) ss << " + ";
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}
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ss << ")";
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return ss.str();
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}
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} // namespace fuzzy_lite
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