412 lines
14 KiB
C++
412 lines
14 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Juergen Riegel *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <sstream>
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# ifdef FC_OS_WIN32
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# define _USE_MATH_DEFINES
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# endif // FC_OS_WIN32
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# include <cmath>
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#endif
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#include "Quantity.h"
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#include "Exception.h"
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#include "UnitsApi.h"
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#include "Console.h"
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#include <boost/math/special_functions/fpclassify.hpp>
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/** \defgroup Units Units system
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\ingroup BASE
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\brief The quantities and units system enables FreeCAD to work transparently with many different units
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*/
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// suppress annoying warnings from generated source files
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#ifdef _MSC_VER
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# pragma warning(disable : 4003)
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# pragma warning(disable : 4018)
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# pragma warning(disable : 4065)
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# pragma warning( disable : 4273 )
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# pragma warning(disable : 4335) // disable MAC file format warning on VC
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#endif
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using namespace Base;
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// ====== Static attributes =========================
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int QuantityFormat::defaultDenominator = 8; // for 1/8"
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QuantityFormat::QuantityFormat()
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: option(OmitGroupSeparator | RejectGroupSeparator)
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, format(Fixed)
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, precision(UnitsApi::getDecimals())
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, denominator(defaultDenominator)
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{
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}
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// ----------------------------------------------------------------------------
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Quantity::Quantity()
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{
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this->_Value = 0.0;
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}
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Quantity::Quantity(const Quantity& that)
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{
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*this = that ;
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}
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Quantity::Quantity(double Value, const Unit& unit)
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{
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this->_Unit = unit;
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this->_Value = Value;
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}
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double Quantity::getValueAs(const Quantity &q)const
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{
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return _Value/q.getValue();
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}
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bool Quantity::operator ==(const Quantity& that) const
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{
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return (this->_Value == that._Value) && (this->_Unit == that._Unit);
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}
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bool Quantity::operator <(const Quantity& that) const
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{
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if (this->_Unit != that._Unit)
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throw Base::UnitsMismatchError("Quantity::operator <(): quantities need to have same unit to compare");
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return (this->_Value < that._Value) ;
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}
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bool Quantity::operator >(const Quantity& that) const
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{
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if (this->_Unit != that._Unit)
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throw Base::UnitsMismatchError("Quantity::operator >(): quantities need to have same unit to compare");
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return (this->_Value > that._Value) ;
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}
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bool Quantity::operator <=(const Quantity& that) const
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{
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if (this->_Unit != that._Unit)
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throw Base::UnitsMismatchError("Quantity::operator <=(): quantities need to have same unit to compare");
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return (this->_Value <= that._Value) ;
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}
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bool Quantity::operator >=(const Quantity& that) const
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{
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if (this->_Unit != that._Unit)
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throw Base::UnitsMismatchError("Quantity::operator >=(): quantities need to have same unit to compare");
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return (this->_Value >= that._Value) ;
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}
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Quantity Quantity::operator *(const Quantity &p) const
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{
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return Quantity(this->_Value * p._Value,this->_Unit * p._Unit);
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}
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Quantity Quantity::operator *(double p) const
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{
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return Quantity(this->_Value * p,this->_Unit);
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}
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Quantity Quantity::operator /(const Quantity &p) const
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{
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return Quantity(this->_Value / p._Value,this->_Unit / p._Unit);
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}
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Quantity Quantity::operator /(double p) const
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{
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return Quantity(this->_Value / p,this->_Unit);
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}
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Quantity Quantity::pow(const Quantity &p) const
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{
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if (!p._Unit.isEmpty())
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throw Base::UnitsMismatchError("Quantity::pow(): exponent must not have a unit");
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return Quantity(
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std::pow(this->_Value, p._Value),
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this->_Unit.pow(static_cast<signed char>(p._Value))
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);
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}
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Quantity Quantity::pow(double p) const
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{
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return Quantity(
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std::pow(this->_Value, p),
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this->_Unit.pow((short)p)
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);
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}
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Quantity Quantity::operator +(const Quantity &p) const
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{
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if (this->_Unit != p._Unit)
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throw Base::UnitsMismatchError("Quantity::operator +(): Unit mismatch in plus operation");
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return Quantity(this->_Value + p._Value,this->_Unit);
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}
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Quantity& Quantity::operator +=(const Quantity &p)
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{
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if (this->_Unit != p._Unit)
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throw Base::UnitsMismatchError("Quantity::operator +=(): Unit mismatch in plus operation");
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_Value += p._Value;
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return *this;
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}
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Quantity Quantity::operator -(const Quantity &p) const
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{
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if (this->_Unit != p._Unit)
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throw Base::UnitsMismatchError("Quantity::operator -(): Unit mismatch in minus operation");
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return Quantity(this->_Value - p._Value,this->_Unit);
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}
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Quantity& Quantity::operator -=(const Quantity &p)
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{
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if (this->_Unit != p._Unit)
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throw Base::UnitsMismatchError("Quantity::operator -=(): Unit mismatch in minus operation");
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_Value -= p._Value;
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return *this;
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}
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Quantity Quantity::operator -(void) const
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{
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return Quantity(-(this->_Value),this->_Unit);
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}
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Quantity& Quantity::operator = (const Quantity &New)
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{
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this->_Value = New._Value;
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this->_Unit = New._Unit;
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this->_Format = New._Format;
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return *this;
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}
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QString Quantity::getUserString(double& factor, QString& unitString) const
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{
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return Base::UnitsApi::schemaTranslate(*this, factor, unitString);
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}
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/// true if it has a number without a unit
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bool Quantity::isDimensionless(void)const
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{
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return isValid() && _Unit.isEmpty();
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}
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// true if it has a number and a valid unit
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bool Quantity::isQuantity(void)const
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{
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return isValid() && !_Unit.isEmpty();
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}
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// true if it has a number with or without a unit
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bool Quantity::isValid(void)const
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{
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return !boost::math::isnan(_Value);
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}
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void Quantity::setInvalid(void)
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{
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_Value = std::numeric_limits<double>::quiet_NaN();
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}
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// === Predefined types =====================================================
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Quantity Quantity::NanoMetre (1.0e-6 ,Unit(1));
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Quantity Quantity::MicroMetre (1.0e-3 ,Unit(1));
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Quantity Quantity::MilliMetre (1.0 ,Unit(1));
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Quantity Quantity::CentiMetre (10.0 ,Unit(1));
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Quantity Quantity::DeciMetre (100.0 ,Unit(1));
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Quantity Quantity::Metre (1.0e3 ,Unit(1));
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Quantity Quantity::KiloMetre (1.0e6 ,Unit(1));
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Quantity Quantity::Liter (1000000.0 ,Unit(3));
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Quantity Quantity::MicroGram (1.0e-9 ,Unit(0,1));
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Quantity Quantity::MilliGram (1.0e-6 ,Unit(0,1));
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Quantity Quantity::Gram (1.0e-3 ,Unit(0,1));
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Quantity Quantity::KiloGram (1.0 ,Unit(0,1));
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Quantity Quantity::Ton (1.0e3 ,Unit(0,1));
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Quantity Quantity::Second (1.0 ,Unit(0,0,1));
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Quantity Quantity::Minute (60.0 ,Unit(0,0,1));
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Quantity Quantity::Hour (3600.0 ,Unit(0,0,1));
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Quantity Quantity::Ampere (1.0 ,Unit(0,0,0,1));
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Quantity Quantity::MilliAmpere (0.001 ,Unit(0,0,0,1));
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Quantity Quantity::KiloAmpere (1000.0 ,Unit(0,0,0,1));
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Quantity Quantity::MegaAmpere (1.0e6 ,Unit(0,0,0,1));
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Quantity Quantity::Kelvin (1.0 ,Unit(0,0,0,0,1));
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Quantity Quantity::MilliKelvin (0.001 ,Unit(0,0,0,0,1));
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Quantity Quantity::MicroKelvin (0.000001 ,Unit(0,0,0,0,1));
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Quantity Quantity::Mole (1.0 ,Unit(0,0,0,0,0,1));
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Quantity Quantity::Candela (1.0 ,Unit(0,0,0,0,0,0,1));
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Quantity Quantity::Inch (25.4 ,Unit(1));
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Quantity Quantity::Foot (304.8 ,Unit(1));
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Quantity Quantity::Thou (0.0254 ,Unit(1));
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Quantity Quantity::Yard (914.4 ,Unit(1));
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Quantity Quantity::Mile (1609344.0 ,Unit(1));
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Quantity Quantity::Pound (0.45359237 ,Unit(0,1));
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Quantity Quantity::Ounce (0.0283495231 ,Unit(0,1));
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Quantity Quantity::Stone (6.35029318 ,Unit(0,1));
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Quantity Quantity::Hundredweights (50.80234544 ,Unit(0,1));
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Quantity Quantity::PoundForce (224.81 ,Unit(1,1,-2)); // Newton are ~= 0.22481 lbF
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Quantity Quantity::Newton (1000.0 ,Unit(1,1,-2)); // Newton (kg*m/s^2)
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Quantity Quantity::KiloNewton (1e+6 ,Unit(1,1,-2));
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Quantity Quantity::MegaNewton (1e+9 ,Unit(1,1,-2));
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Quantity Quantity::MilliNewton (1.0 ,Unit(1,1,-2));
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Quantity Quantity::Pascal (0.001 ,Unit(-1,1,-2)); // Pascal (kg/m/s^2 or N/m^2)
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Quantity Quantity::KiloPascal (1.00 ,Unit(-1,1,-2));
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Quantity Quantity::MegaPascal (1000.0 ,Unit(-1,1,-2));
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Quantity Quantity::GigaPascal (1e+6 ,Unit(-1,1,-2));
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Quantity Quantity::Torr (101.325/760.0 ,Unit(-1,1,-2)); // Torr is a defined fraction of Pascal (kg/m/s^2 or N/m^2)
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Quantity Quantity::mTorr (0.101325/760.0,Unit(-1,1,-2)); // Torr is a defined fraction of Pascal (kg/m/s^2 or N/m^2)
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Quantity Quantity::yTorr (0.000101325/760.0 ,Unit(-1,1,-2)); // Torr is a defined fraction of Pascal (kg/m/s^2 or N/m^2)
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Quantity Quantity::PSI (6.894744825494,Unit(-1,1,-2)); // pounds/in^2
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Quantity Quantity::KSI (6894.744825494,Unit(-1,1,-2)); // 1000 x pounds/in^2
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Quantity Quantity::Watt (1e+6 ,Unit(2,1,-3)); // Watt (kg*m^2/s^3)
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Quantity Quantity::VoltAmpere (1e+6 ,Unit(2,1,-3)); // VoltAmpere (kg*m^2/s^3)
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Quantity Quantity::Volt (1e+6 ,Unit(2,1,-3,-1)); // Volt (kg*m^2/A/s^3)
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Quantity Quantity::Joule (1e+6 ,Unit(2,1,-2)); // Joule (kg*m^2/s^2)
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Quantity Quantity::NewtonMeter (1e+6 ,Unit(2,1,-2)); // Joule (kg*m^2/s^2)
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Quantity Quantity::VoltAmpereSecond (1e+6 ,Unit(2,1,-2)); // Joule (kg*m^2/s^2)
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Quantity Quantity::WattSecond (1e+6 ,Unit(2,1,-2)); // Joule (kg*m^2/s^2)
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Quantity Quantity::KMH (277.778 ,Unit(1,0,-1)); // km/h
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Quantity Quantity::MPH (447.04 ,Unit(1,0,-1)); // Mile/h
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Quantity Quantity::AngMinute (1.0/60.0 ,Unit(0,0,0,0,0,0,0,1)); // angular minute
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Quantity Quantity::AngSecond (1.0/3600.0 ,Unit(0,0,0,0,0,0,0,1)); // angular minute
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Quantity Quantity::Degree (1.0 ,Unit(0,0,0,0,0,0,0,1)); // degree (internal standard angle)
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Quantity Quantity::Radian (180/M_PI ,Unit(0,0,0,0,0,0,0,1)); // radian
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Quantity Quantity::Gon (360.0/400.0 ,Unit(0,0,0,0,0,0,0,1)); // gon
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// === Parser & Scanner stuff ===============================================
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// include the Scanner and the Parser for the Quantitys
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Quantity QuantResult;
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/* helper function for tuning number strings with groups in a locale agnostic way... */
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double num_change(char* yytext,char dez_delim,char grp_delim)
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{
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double ret_val;
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char temp[40];
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int i = 0;
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for(char* c=yytext;*c!='\0';c++){
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// skip group delimiter
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if(*c==grp_delim) continue;
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// check for a dez delimiter other then dot
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if(*c==dez_delim && dez_delim !='.')
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temp[i++] = '.';
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else
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temp[i++] = *c;
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// check buffer overflow
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if (i>39) return 0.0;
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}
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temp[i] = '\0';
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ret_val = atof( temp );
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return ret_val;
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}
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// error func
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void Quantity_yyerror(char *errorinfo)
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{
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throw Base::ParserError(errorinfo);
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}
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// for VC9 (isatty and fileno not supported anymore)
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//#ifdef _MSC_VER
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//int isatty (int i) {return _isatty(i);}
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//int fileno(FILE *stream) {return _fileno(stream);}
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//#endif
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namespace QuantityParser {
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#define YYINITDEPTH 20
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// show parser the lexer method
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#define yylex QuantityLexer
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int QuantityLexer(void);
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// Parser, defined in QuantityParser.y
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#include "QuantityParser.c"
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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// Scanner, defined in QuantityParser.l
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#if defined(__clang__)
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# pragma clang diagnostic push
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# pragma clang diagnostic ignored "-Wsign-compare"
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# pragma clang diagnostic ignored "-Wunneeded-internal-declaration"
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#elif defined (__GNUC__)
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# pragma GCC diagnostic push
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# pragma GCC diagnostic ignored "-Wsign-compare"
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#endif
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#include "QuantityLexer.c"
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#if defined(__clang__)
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# pragma clang diagnostic pop
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#elif defined (__GNUC__)
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# pragma GCC diagnostic pop
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#endif
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#endif // DOXYGEN_SHOULD_SKIP_THIS
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}
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Quantity Quantity::parse(const QString &string)
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{
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// parse from buffer
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QuantityParser::YY_BUFFER_STATE my_string_buffer = QuantityParser::yy_scan_string (string.toUtf8().data());
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// set the global return variables
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QuantResult = Quantity(DOUBLE_MIN);
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// run the parser
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QuantityParser::yyparse ();
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// free the scan buffer
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QuantityParser::yy_delete_buffer (my_string_buffer);
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//if (QuantResult == Quantity(DOUBLE_MIN))
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// throw Base::ParserError("Unknown error in Quantity expression");
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return QuantResult;
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}
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