solid_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/angle.h"
#include "units/base.h"
 
namespace units {
/**
 * @namespace units::solid_angle
 * @brief namespace for unit types and containers representing solid_angle
 *        values
 * @details The SI unit for solid_angle is `steradians`, and the corresponding
 *          `base_unit` category is `solid_angle_unit`.
 * @anchor solidAngleContainers
 * @sa See unit_t for more information on unit type containers.
 */
#if !defined(DISABLE_PREDEFINED_UNITS) || \
    defined(ENABLE_PREDEFINED_SOLID_ANGLE_UNITS)
UNIT_ADD_WITH_METRIC_PREFIXES(
    solid_angle, steradian, steradians, sr,
    unit<std::ratio<1>, units::category::solid_angle_unit>)
UNIT_ADD(solid_angle, degree_squared, degrees_squared, sq_deg,
         squared<angle::degrees>)
UNIT_ADD(solid_angle, spat, spats, sp,
         unit<std::ratio<4>, steradians, std::ratio<1>>)
 
UNIT_ADD_CATEGORY_TRAIT(solid_angle)
#endif
 
using namespace solid_angle;
}  // namespace units