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/*
Author: Juan Rada-Vilela, Ph.D.
Copyright (C) 2010-2014 FuzzyLite Limited
All rights reserved
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.
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.
*/
#include "fl/factory/FunctionFactory.h"
#include "fl/rule/Rule.h"
namespace fl {
FunctionFactory::FunctionFactory() : CloningFactory<Function::Element*>("Function::Element") {
registerOperators();
registerFunctions();
}
FunctionFactory::~FunctionFactory() {
}
void FunctionFactory::registerOperators() {
//OPERATORS:
int p = 100;
//First order: not, negate:
registerObject("!", new Function::Element("!", "Logical NOT",
Function::Element::OPERATOR, &(fl::Op::logicalNot), p, 1)); //logical not
registerObject("~", new Function::Element("~", "Negation",
Function::Element::OPERATOR, &(fl::Op::negate), p, 1)); // ~ negates a number
p -= 10;
//Second order: power
registerObject("^", new Function::Element("^", "Power",
Function::Element::OPERATOR, &(std::pow), p, 1));
p -= 10;
//Third order: multiplication, division, modulo
registerObject("*", new Function::Element("*", "Multiplication",
Function::Element::OPERATOR, &(fl::Op::multiply), p));
registerObject("/", new Function::Element("/", "Division",
Function::Element::OPERATOR, &(fl::Op::divide), p));
registerObject("%", new Function::Element("%", "Modulo",
Function::Element::OPERATOR, &(fl::Op::modulo), p));
p -= 10;
//Fourth order: addition, subtraction
registerObject("+", new Function::Element("+", "Addition",
Function::Element::OPERATOR, &(fl::Op::add), p));
registerObject("-", new Function::Element("-", "Subtraction",
Function::Element::OPERATOR, &(fl::Op::subtract), p));
//Fifth order: logical and, logical or
p -= 10; //Logical AND
registerObject(fl::Rule::andKeyword(), new Function::Element(fl::Rule::andKeyword(), "Logical AND",
Function::Element::OPERATOR, &(fl::Op::logicalAnd), p));
p -= 10; //Logical OR
registerObject(fl::Rule::orKeyword(), new Function::Element(fl::Rule::orKeyword(), "Logical OR",
Function::Element::OPERATOR, &(fl::Op::logicalOr), p));
}
void FunctionFactory::registerFunctions() {
//FUNCTIONS
registerObject("gt", new Function::Element("gt", "Greater than (>)",
Function::Element::FUNCTION, &(fl::Op::gt)));
registerObject("ge", new Function::Element("ge", "Greater than or equal to (>=)",
Function::Element::FUNCTION, &(fl::Op::ge)));
registerObject("eq", new Function::Element("eq", "Equal to (==)",
Function::Element::FUNCTION, &(fl::Op::eq)));
registerObject("neq", new Function::Element("neq", "Not equal to (!=)",
Function::Element::FUNCTION, &(fl::Op::neq)));
registerObject("le", new Function::Element("le", "Less than or equal to (<=)",
Function::Element::FUNCTION, &(fl::Op::le)));
registerObject("lt", new Function::Element("lt", "Less than (<)",
Function::Element::FUNCTION, &(fl::Op::lt)));
registerObject("acos", new Function::Element("acos", "Inverse cosine",
Function::Element::FUNCTION, &(std::acos)));
registerObject("asin", new Function::Element("asin", "Inverse sine",
Function::Element::FUNCTION, &(std::asin)));
registerObject("atan", new Function::Element("atan", "Inverse tangent",
Function::Element::FUNCTION, &(std::atan)));
registerObject("ceil", new Function::Element("ceil", "Ceiling",
Function::Element::FUNCTION, &(std::ceil)));
registerObject("cos", new Function::Element("cos", "Cosine",
Function::Element::FUNCTION, &(std::cos)));
registerObject("cosh", new Function::Element("cosh", "Hyperbolic cosine",
Function::Element::FUNCTION, &(std::cosh)));
registerObject("exp", new Function::Element("exp", "Exponential",
Function::Element::FUNCTION, &(std::exp)));
registerObject("fabs", new Function::Element("fabs", "Absolute",
Function::Element::FUNCTION, &(std::fabs)));
registerObject("floor", new Function::Element("floor", "Floor",
Function::Element::FUNCTION, &(std::floor)));
registerObject("log", new Function::Element("log", "Natural logarithm",
Function::Element::FUNCTION, &(std::log)));
registerObject("log10", new Function::Element("log10", "Common logarithm",
Function::Element::FUNCTION, &(std::log10)));
registerObject("round", new Function::Element("round", "Round",
Function::Element::FUNCTION, &(fl::Op::round)));
registerObject("sin", new Function::Element("sin", "Sine",
Function::Element::FUNCTION, &(std::sin)));
registerObject("sinh", new Function::Element("sinh", "Hyperbolic sine",
Function::Element::FUNCTION, &(std::sinh)));
registerObject("sqrt", new Function::Element("sqrt", "Square root",
Function::Element::FUNCTION, &(std::sqrt)));
registerObject("tan", new Function::Element("tan", "Tangent",
Function::Element::FUNCTION, &(std::tan)));
registerObject("tanh", new Function::Element("tanh", "Hyperbolic tangent",
Function::Element::FUNCTION, &(std::tanh)));
#if defined(FL_UNIX) && !defined(FL_USE_FLOAT)
//found in Unix when using double precision. not found in Windows.
registerObject("log1p", new Function::Element("log1p", "Natural logarithm plus one",
Function::Element::FUNCTION, &(log1p)));
registerObject("acosh", new Function::Element("acosh", "Inverse hyperbolic cosine",
Function::Element::FUNCTION, &(acosh)));
registerObject("asinh", new Function::Element("asinh", "Inverse hyperbolic sine",
Function::Element::FUNCTION, &(asinh)));
registerObject("atanh", new Function::Element("atanh", "Inverse hyperbolic tangent",
Function::Element::FUNCTION, &(atanh)));
#endif
registerObject("pow", new Function::Element("pow", "Power",
Function::Element::FUNCTION, &(std::pow)));
registerObject("atan2", new Function::Element("atan2", "Inverse tangent (y,x)",
Function::Element::FUNCTION, &(std::atan2)));
registerObject("fmod", new Function::Element("fmod", "Floating-point remainder",
Function::Element::FUNCTION, &(std::fmod)));
}
std::vector<std::string> FunctionFactory::availableOperators() const {
std::vector<std::string> result;
std::map<std::string, Function::Element*>::const_iterator it = this->_objects.begin();
while (it != this->_objects.end()) {
if (it->second and it->second->type == Function::Element::OPERATOR)
result.push_back(it->first);
++it;
}
return result;
}
std::vector<std::string> FunctionFactory::availableFunctions() const {
std::vector<std::string> result;
std::map<std::string, Function::Element*>::const_iterator it = this->_objects.begin();
while (it != this->_objects.end()) {
if (it->second and it->second->type == Function::Element::FUNCTION)
result.push_back(it->first);
++it;
}
return result;
}
}
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