velocity.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
//
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#pragma once
 
#include "units/base.h"
#include "units/length.h"
#include "units/time.h"
 
namespace units {
/**
 * @namespace units::velocity
 * @brief namespace for unit types and containers representing velocity values
 * @details The SI unit for velocity is `meters_per_second`, and the
 *          corresponding `base_unit` category is `velocity_unit`.
 * @anchor velocityContainers
 * @sa See unit_t for more information on unit type containers.
 */
#if !defined(DISABLE_PREDEFINED_UNITS) || \
    defined(ENABLE_PREDEFINED_VELOCITY_UNITS)
UNIT_ADD(velocity, meters_per_second, meters_per_second, mps,
         unit<std::ratio<1>, units::category::velocity_unit>)
UNIT_ADD(velocity, feet_per_second, feet_per_second, fps,
         compound_unit<length::feet, inverse<time::seconds>>)
UNIT_ADD(velocity, miles_per_hour, miles_per_hour, mph,
         compound_unit<length::miles, inverse<time::hour>>)
UNIT_ADD(velocity, kilometers_per_hour, kilometers_per_hour, kph,
         compound_unit<length::kilometers, inverse<time::hour>>)
UNIT_ADD(velocity, knot, knots, kts,
         compound_unit<length::nauticalMiles, inverse<time::hour>>)
 
UNIT_ADD_CATEGORY_TRAIT(velocity)
#endif
 
using namespace velocity;
}  // namespace units