angle.h

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// Copyright (c) FIRST and other WPILib contributors.
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// Copyright (c) 2016 Nic Holthaus
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#pragma once
 
#include "units/base.h"
 
namespace units {
/**
 * @namespace units::angle
 * @brief namespace for unit types and containers representing angle values
 * @details The SI unit for angle is `radians`, and the corresponding
 *          `base_unit` category is`angle_unit`.
 * @anchor angleContainers
 * @sa See unit_t for more information on unit type containers.
 */
#if !defined(DISABLE_PREDEFINED_UNITS) || defined(ENABLE_PREDEFINED_ANGLE_UNITS)
UNIT_ADD_WITH_METRIC_PREFIXES(angle, radian, radians, rad,
                              unit<std::ratio<1>, units::category::angle_unit>)
UNIT_ADD(angle, degree, degrees, deg,
         unit<std::ratio<1, 180>, radians, std::ratio<1>>)
UNIT_ADD(angle, arcminute, arcminutes, arcmin, unit<std::ratio<1, 60>, degrees>)
UNIT_ADD(angle, arcsecond, arcseconds, arcsec,
         unit<std::ratio<1, 60>, arcminutes>)
UNIT_ADD(angle, milliarcsecond, milliarcseconds, mas, milli<arcseconds>)
UNIT_ADD(angle, turn, turns, tr, unit<std::ratio<2>, radians, std::ratio<1>>)
UNIT_ADD(angle, gradian, gradians, gon, unit<std::ratio<1, 400>, turns>)
 
UNIT_ADD_CATEGORY_TRAIT(angle)
#endif
 
using namespace angle;
}  // namespace units