diff options
Diffstat (limited to 'fuzzylite/src/term/Ramp.cpp')
| -rw-r--r-- | fuzzylite/src/term/Ramp.cpp | 73 |
1 files changed, 41 insertions, 32 deletions
diff --git a/fuzzylite/src/term/Ramp.cpp b/fuzzylite/src/term/Ramp.cpp index f224045..d29233d 100644 --- a/fuzzylite/src/term/Ramp.cpp +++ b/fuzzylite/src/term/Ramp.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/Ramp.h" @@ -27,35 +19,52 @@ namespace fl { Ramp::Ramp(const std::string& name, scalar start, scalar end, scalar height) - : Term(name, height), _start(start), _end(end) { - } + : Term(name, height), _start(start), _end(end) { } - Ramp::~Ramp() { - } + Ramp::~Ramp() { } std::string Ramp::className() const { return "Ramp"; } + Complexity Ramp::complexity() const { + return Complexity().comparison(1 + 4).arithmetic(1 + 3); + } + scalar Ramp::membership(scalar x) const { - if (fl::Op::isNaN(x)) return fl::nan; + if (Op::isNaN(x)) return fl::nan; - if (Op::isEq(_start, _end)) return _height * 0.0; + if (Op::isEq(_start, _end)) + return Term::_height * 0.0; if (Op::isLt(_start, _end)) { - if (Op::isLE(x, _start)) return _height * 0.0; - if (Op::isGE(x, _end)) return _height * 1.0; - return _height * (x - _start) / (_end - _start); + if (Op::isLE(x, _start)) + return Term::_height * 0.0; + if (Op::isGE(x, _end)) + return Term::_height * 1.0; + return Term::_height * (x - _start) / (_end - _start); } else { - if (Op::isGE(x, _start)) return _height * 0.0; - if (Op::isLE(x, _end)) return _height * 1.0; - return _height * (_start - x) / (_start - _end); + if (Op::isGE(x, _start)) + return Term::_height * 0.0; + if (Op::isLE(x, _end)) + return Term::_height * 1.0; + return Term::_height * (_start - x) / (_start - _end); } } + scalar Ramp::tsukamoto(scalar activationDegree, scalar minimum, scalar maximum) const { + FL_IUNUSED(minimum); + FL_IUNUSED(maximum); + return Op::scale(activationDegree, 0, 1, _start, _end); + } + + bool Ramp::isMonotonic() const { + return true; + } + std::string Ramp::parameters() const { return Op::join(2, " ", _start, _end) + - (not Op::isEq(_height, 1.0) ? " " + Op::str(_height) : ""); + (not Op::isEq(getHeight(), 1.0) ? " " + Op::str(getHeight()) : ""); } void Ramp::configure(const std::string& parameters) { @@ -66,7 +75,7 @@ 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); } setStart(Op::toScalar(values.at(0))); setEnd(Op::toScalar(values.at(1))); @@ -92,11 +101,11 @@ namespace fl { Ramp::Direction Ramp::direction() const { scalar range = this->_end - this->_start; - if (not fl::Op::isFinite(range) or fl::Op::isEq(range, 0.0)) return ZERO; + if (not Op::isFinite(range) or Op::isEq(range, 0.0)) return Zero; - if (fl::Op::isGt(range, 0.0)) return POSITIVE; + if (Op::isGt(range, 0.0)) return Positive; - return NEGATIVE; + return Negative; } Ramp* Ramp::clone() const { |