temperature.h

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// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
 
// Copyright (c) 2016 Nic Holthaus
//
// The MIT License (MIT)
//
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// of this software and associated documentation files (the "Software"), to deal
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#pragma once
 
#include "units/base.h"
 
namespace units {
// NOTE: temperature units have special conversion overloads, since they
// require translations and aren't a reversible transform.
 
/**
 * @namespace units::temperature
 * @brief namespace for unit types and containers representing temperature
 *        values
 * @details The SI unit for temperature is `kelvin`, and the corresponding
 *          `base_unit` category is `temperature_unit`.
 * @anchor temperatureContainers
 * @sa See unit_t for more information on unit type containers.
 */
#if !defined(DISABLE_PREDEFINED_UNITS) || \
    defined(ENABLE_PREDEFINED_TEMPERATURE_UNITS)
UNIT_ADD(temperature, kelvin, kelvin, K,
         unit<std::ratio<1>, units::category::temperature_unit>)
UNIT_ADD(temperature, celsius, celsius, degC,
         unit<std::ratio<1>, kelvin, std::ratio<0>, std::ratio<27315, 100>>)
UNIT_ADD(temperature, fahrenheit, fahrenheit, degF,
         unit<std::ratio<5, 9>, celsius, std::ratio<0>, std::ratio<-160, 9>>)
UNIT_ADD(temperature, reaumur, reaumur, Re, unit<std::ratio<10, 8>, celsius>)
UNIT_ADD(temperature, rankine, rankine, Ra, unit<std::ratio<5, 9>, kelvin>)
 
UNIT_ADD_CATEGORY_TRAIT(temperature)
#endif
 
using namespace temperature;
}  // namespace units