diff options
Diffstat (limited to 'fuzzylite/src/term/Cosine.cpp')
| -rw-r--r-- | fuzzylite/src/term/Cosine.cpp | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/fuzzylite/src/term/Cosine.cpp b/fuzzylite/src/term/Cosine.cpp index a1402ad..78162ea 100644 --- a/fuzzylite/src/term/Cosine.cpp +++ b/fuzzylite/src/term/Cosine.cpp @@ -1,25 +1,17 @@ /* - Author: Juan Rada-Vilela, Ph.D. - Copyright (C) 2010-2014 FuzzyLite Limited - All rights reserved + 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 GNU Lesser General Public License as published by the Free - Software Foundation, either version 3 of the License, or (at your option) - any later version. + the terms of the FuzzyLite License included with the software. - fuzzylite 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 Lesser General Public License - for more details. - - You should have received a copy of the GNU Lesser General Public License - along with fuzzylite. If not, see <http://www.gnu.org/licenses/>. - - fuzzylite™ is a trademark of FuzzyLite Limited. + 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/Cosine.h" @@ -27,13 +19,9 @@ namespace fl { Cosine::Cosine(const std::string& name, scalar center, scalar width, scalar height) - : Term(name, height), _center(center), _width(width) { + : Term(name, height), _center(center), _width(width) { } - } - - Cosine::~Cosine() { - - } + Cosine::~Cosine() { } std::string Cosine::className() const { return "Cosine"; @@ -41,7 +29,7 @@ namespace fl { std::string Cosine::parameters() const { return Op::join(2, " ", _center, _width) + - (not Op::isEq(_height, 1.0) ? " " + Op::str(_height) : ""); + (not Op::isEq(getHeight(), 1.0) ? " " + Op::str(getHeight()) : ""); } void Cosine::configure(const std::string& parameters) { @@ -52,7 +40,7 @@ namespace fl { std::ostringstream ex; ex << "[configuration error] term <" << className() << ">" << " requires <" << required << "> parameters"; - throw fl::Exception(ex.str(), FL_AT); + throw Exception(ex.str(), FL_AT); } setCenter(Op::toScalar(values.at(0))); setWidth(Op::toScalar(values.at(1))); @@ -61,13 +49,17 @@ namespace fl { } + Complexity Cosine::complexity() const { + return Complexity().comparison(3).arithmetic(4 + 1 + 7).function(2); + } + scalar Cosine::membership(scalar x) const { - if (fl::Op::isNaN(x)) return fl::nan; - if (fl::Op::isLt(x, _center - _width / 2.0) - or fl::Op::isGt(x, _center + _width / 2.0)) - return _height * 0.0; + if (Op::isNaN(x)) return fl::nan; + if (Op::isLt(x, _center - 0.5 * _width) + or Op::isGt(x, _center + 0.5 * _width)) + return Term::_height * 0.0; const scalar pi = 4.0 * std::atan(1.0); - return _height * (0.5 * (1.0 + std::cos(2.0 / _width * pi * (x - _center)))); + return Term::_height * (0.5 * (1.0 + std::cos(2.0 / _width * pi * (x - _center)))); } void Cosine::setCenter(scalar center) { @@ -93,4 +85,5 @@ namespace fl { Term* Cosine::constructor() { return new Cosine; } + } |