solid_angle.hpp

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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (C) 2026 Vallés Puig, Ramon
 
#pragma once
 
#include "../ffi_core.hpp"
 
namespace qtty {
 
struct SquareDegreeTag {};
struct SteradianTag {};
struct SquareMilliradianTag {};
struct SquareArcminuteTag {};
struct SquareArcsecondTag {};
 
template <> struct UnitTraits<SquareDegreeTag> {
  static constexpr UnitId unit_id() { return UNIT_ID_SQUARE_DEGREE; }
  static constexpr std::string_view symbol() { return ""; }
  static constexpr DimensionId dimension() { return DIMENSION_ID_SOLID_ANGLE; }
};
template <> struct UnitTraits<SteradianTag> {
  static constexpr UnitId unit_id() { return UNIT_ID_STERADIAN; }
  static constexpr std::string_view symbol() { return ""; }
  static constexpr DimensionId dimension() { return DIMENSION_ID_SOLID_ANGLE; }
};
template <> struct UnitTraits<SquareMilliradianTag> {
  static constexpr UnitId unit_id() { return UNIT_ID_SQUARE_MILLIRADIAN; }
  static constexpr std::string_view symbol() { return ""; }
  static constexpr DimensionId dimension() { return DIMENSION_ID_SOLID_ANGLE; }
};
template <> struct UnitTraits<SquareArcminuteTag> {
  static constexpr UnitId unit_id() { return UNIT_ID_SQUARE_ARCMINUTE; }
  static constexpr std::string_view symbol() { return ""; }
  static constexpr DimensionId dimension() { return DIMENSION_ID_SOLID_ANGLE; }
};
template <> struct UnitTraits<SquareArcsecondTag> {
  static constexpr UnitId unit_id() { return UNIT_ID_SQUARE_ARCSECOND; }
  static constexpr std::string_view symbol() { return ""; }
  static constexpr DimensionId dimension() { return DIMENSION_ID_SOLID_ANGLE; }
};
 
using SquareDegree = Quantity<SquareDegreeTag>;
using Steradian = Quantity<SteradianTag>;
using SquareMilliradian = Quantity<SquareMilliradianTag>;
using SquareArcminute = Quantity<SquareArcminuteTag>;
using SquareArcsecond = Quantity<SquareArcsecondTag>;
 
} // namespace qtty