units_extensions.hpp

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// Copyright 2023 Leidos
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#ifndef CARMA_COOPERATIVE_PERCEPTION__UNITS_EXTENSIONS_HPP_
#define CARMA_COOPERATIVE_PERCEPTION__UNITS_EXTENSIONS_HPP_
 
#include <units.h>
 
#include <ratio>
 
namespace carma_cooperative_perception
{
template <typename T>
constexpr auto remove_units(const T & value)
{
  return units::unit_cast<typename T::underlying_type>(value);
}
 
}  // namespace carma_cooperative_perception
 
/*
 * The nholthaus/units library does not include an exhaustive list of units, so
 * this is how we can add missing/new ones. See the following for more information:
 * - https://github.com/nholthaus/units?tab=readme-ov-file#defining-new-units
 * - https://github.com/nholthaus/units?tab=readme-ov-file#unit-definition-macros
 */
namespace units
{
 
// NOLINTBEGIN
UNIT_ADD(
  acceleration, centi_meters_per_second_squared, centimeters_per_second_squared,
  centi_mps_sq,
  unit<std::centi, meters_per_second_squared>)
 
UNIT_ADD(
  acceleration, two_centi_standard_gravities, two_centi_standard_gravities, two_centi_SG,
  unit<std::ratio_multiply<std::ratio<2>, std::centi>, standard_gravity>)
 
UNIT_ADD(
  angular_velocity, centi_degrees_per_second, centi_degrees_per_second, centi_deg_per_s,
  unit<std::centi, degrees_per_second>)
 
UNIT_ADD(
  angle, deci_micro_degrees, deci_micro_degrees, deci_udeg,
  unit<std::ratio_multiply<std::deci, std::micro>, degrees>)
 
UNIT_ADD(
  length, deca_centimeters, deca_centimeters, deca_cm, unit<std::ratio<10>, centimeters>)
 
UNIT_ADD(
  angle, eighth_deci_degrees, eighth_deci_degrees, eighth_ddeg,
  unit<std::ratio_multiply<std::ratio<1, 8>, std::deci>, degrees>)
 
UNIT_ADD(
  velocity, two_milli_meters_per_second, two_milli_meters_per_second, two_milli_mps,
  unit<std::ratio_multiply<std::ratio<2>, std::milli>, meters_per_second>)
 
UNIT_ADD(
  velocity, two_centi_meters_per_second, two_centi_meters_per_second, two_centi_mps,
  unit<std::ratio_multiply<std::ratio<2>, std::centi>, meters_per_second>)
// NOLINTEND
 
}  // namespace units
 
#endif  // CARMA_COOPERATIVE_PERCEPTION__UNITS_EXTENSIONS_HPP_