RTX::Units Class Reference

Keep track of dimensions and units of measure. More...

#include <Units.h>

Public Member Functions
	Units (double conversion=1., int mass=0, int length=0, int time=0, int current=0, int temperature=0, int amount=0, int intensity=0, double offset=0)
	Create a new Units object with the specified dimensions and conversion factor. More...
Units	operator* (const Units &unit) const
Units	operator/ (const Units &unit) const
bool	operator== (const Units &unit) const
bool	isSameDimensionAs (const Units &unit) const
bool	isDimensionless ()
double	conversion () const
std::string	unitString ()
virtual std::ostream &	toStream (std::ostream &stream)

Static Public Member Functions
static double	convertValue (double value, const Units &fromUnits, const Units &toUnits)
static Units	unitOfType (const std::string &unitString)
static std::map< std::string, Units >	unitStringMap ()

Detailed Description

Keep track of dimensions and units of measure.

In general, any unit can be expressed as a set of mutually independent exponent factors of the quantities listed below. We shall support all of the seven (7) exponents, even though we expect to never use the candela, but why limit the future, right?

• length = meter (m)
• mass = kilogram (kg)
• time = second (s)
• electric current = ampere (A)
• thermodynamic temperature = kelvin (K)
• amount of substance = mole (mol)
• luminous intensity = candela (cd)

Constructor & Destructor Documentation

RTX::Units::Units	(	double	conversion = 1.,
		int	mass = 0,
		int	length = 0,
		int	time = 0,
		int	current = 0,
		int	temperature = 0,
		int	amount = 0,
		int	intensity = 0,
		double	offset = 0
	)

Create a new Units object with the specified dimensions and conversion factor.

The default dimensional exponents are all zero (0), which means dimensionless. See Units.h for some predefined units of measure.

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The documentation for this class was generated from the following files:

• Units.h
• Units.cpp