172 lines
4.9 KiB
C++
172 lines
4.9 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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#ifndef BASE_Quantity_H
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#define BASE_Quantity_H
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#include "Unit.h"
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#include <QString>
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#ifndef DOUBLE_MAX
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# define DOUBLE_MAX 1.7976931348623157E+308 /* max decimal value of a "double"*/
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#endif
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#ifndef DOUBLE_MIN
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# define DOUBLE_MIN 2.2250738585072014E-308 /* min decimal value of a "double"*/
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#endif
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namespace Base {
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/**
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* The Quantity class.
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*/
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class BaseExport Quantity
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{
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public:
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/// default constructor
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Quantity(void);
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Quantity(const Quantity&);
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Quantity(double Value, const Unit& unit=Unit());
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/// Destruction
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~Quantity () {};
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/** Operators. */
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//@{
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Quantity operator *(const Quantity &p) const;
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Quantity operator +(const Quantity &p) const;
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Quantity operator -(const Quantity &p) const;
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Quantity operator -(void) const;
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Quantity operator /(const Quantity &p) const;
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bool operator ==(const Quantity&) const;
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Quantity& operator =(const Quantity&);
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Quantity pow(const Quantity&)const;
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//@}
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/// transfer to user prefered unit/potence
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double getUserPrefered() const { QString dummy; return getUserPrefered(dummy); }
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double getUserPrefered(QString &unitString) const;
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std::string getUserString(void)const;
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static Quantity parse(const char* buffer);
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const Unit & getUnit(void) const{return _Unit;}
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void setUnit(const Unit &un){_Unit = un;}
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double getValue(void) const{return _Value;}
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void setValue(double val){_Value = val;}
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/// true if it has a number without a unit
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bool isDimensionless(void)const;
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/// true if it has a number and a valid unit
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bool isQuantity(void)const;
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/// true if it has a number with or without a unit
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bool isValid(void)const;
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/// sets the quantity invalid
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void setInvalid(void);
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/** Predefined Unit types. */
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//@{
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static Quantity NanoMetre;
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static Quantity MicroMetre;
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static Quantity CentiMetre;
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static Quantity DeciMetre;
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static Quantity Metre;
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static Quantity MilliMetre;
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static Quantity KiloMetre;
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static Quantity Liter;
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static Quantity MicroGram;
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static Quantity MilliGram;
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static Quantity Gram;
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static Quantity KiloGram;
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static Quantity Ton;
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static Quantity Second;
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static Quantity Minute;
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static Quantity Hour;
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static Quantity Ampere;
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static Quantity MilliAmpere;
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static Quantity KiloAmpere;
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static Quantity MegaAmpere;
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static Quantity Kelvin;
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static Quantity MilliKelvin;
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static Quantity MicroKelvin;
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static Quantity Mole;
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static Quantity Candela;
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static Quantity Inch;
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static Quantity Foot;
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static Quantity Thou;
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static Quantity Yard;
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static Quantity Pound;
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static Quantity Ounce;
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static Quantity Stone;
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static Quantity Hundredweights;
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static Quantity Mile;
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static Quantity Newton;
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static Quantity KiloNewton;
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static Quantity MegaNewton;
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static Quantity MilliNewton;
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static Quantity Pascal;
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static Quantity KiloPascal;
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static Quantity MegaPascal;
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static Quantity GigaPascal;
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static Quantity PSI;
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static Quantity Watt;
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static Quantity VoltAmpere;
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static Quantity Joul;
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static Quantity NewtonMeter;
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static Quantity VoltAmpereSecond;
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static Quantity WattSecond;
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static Quantity KMH;
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static Quantity MPH;
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static Quantity Degree;
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static Quantity Radian;
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static Quantity Gon;
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//@}
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protected:
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double _Value;
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Unit _Unit;
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};
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} // namespace Base
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#endif // BASE_Quantity_H
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