Pressure.hpp

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// Copyright © 2020-2024 Alexandre Coderre-Chabot
//
// This file is part of Physical Quantities (PhQ), a C++ library of physical quantities, physical
// models, and units of measure for scientific computing.
//
// Physical Quantities is hosted at:
//     https://github.com/acodcha/phq
//
// Physical Quantities is licensed under the MIT License:
//     https://mit-license.org
//
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#ifndef PHQ_UNIT_PRESSURE_HPP
#define PHQ_UNIT_PRESSURE_HPP
 
#include <cstddef>
#include <cstdint>
#include <functional>
#include <map>
#include <ostream>
#include <string_view>
#include <unordered_map>
 
#include "../Base.hpp"
#include "../Dimension/ElectricCurrent.hpp"
#include "../Dimension/Length.hpp"
#include "../Dimension/LuminousIntensity.hpp"
#include "../Dimension/Mass.hpp"
#include "../Dimension/SubstanceAmount.hpp"
#include "../Dimension/Temperature.hpp"
#include "../Dimension/Time.hpp"
#include "../Dimensions.hpp"
#include "../Unit.hpp"
#include "../UnitSystem.hpp"
 
namespace PhQ {
 
namespace Unit {
 
/// \brief Pressure units.
enum class Pressure : int8_t {
  /// \brief Pascal (Pa) pressure unit.
  Pascal,
 
  /// \brief Kilopascal (kPa) pressure unit.
  Kilopascal,
 
  /// \brief Megapascal (MPa) pressure unit.
  Megapascal,
 
  /// \brief Gigapascal (GPa) pressure unit.
  Gigapascal,
 
  /// \brief Bar (bar) pressure unit.
  Bar,
 
  /// \brief Atmosphere (atm) pressure unit.
  Atmosphere,
 
  /// \brief Pound per square foot (lbf/ft^2) pressure unit.
  PoundPerSquareFoot,
 
  /// \brief Pound per square inch (lbf/in^2) pressure unit.
  PoundPerSquareInch,
};
 
}  // namespace Unit
 
/// \brief Standard pressure unit: pascal (Pa).
template <>
inline constexpr const Unit::Pressure Standard<Unit::Pressure>{Unit::Pressure::Pascal};
 
/// \brief Physical dimension set of pressure units.
template <>
inline constexpr const Dimensions RelatedDimensions<Unit::Pressure>{
  Dimensions{Dimension::Time{-2}, Dimension::Length{-1}, Dimension::Mass{1},
             Dimension::ElectricCurrent{0}, Dimension::Temperature{0},
             Dimension::SubstanceAmount{0}, Dimension::LuminousIntensity{0}}
};
 
inline std::ostream& operator<<(std::ostream& stream, const Unit::Pressure unit) {
  stream << Abbreviation(unit);
  return stream;
}
 
namespace Internal {
 
template <>
inline const std::map<UnitSystem, Unit::Pressure> ConsistentUnits<Unit::Pressure>{
  {UnitSystem::MetreKilogramSecondKelvin,  Unit::Pressure::Pascal            },
  {UnitSystem::MillimetreGramSecondKelvin, Unit::Pressure::Pascal            },
  {UnitSystem::FootPoundSecondRankine,     Unit::Pressure::PoundPerSquareFoot},
  {UnitSystem::InchPoundSecondRankine,     Unit::Pressure::PoundPerSquareInch},
};
 
template <>
inline const std::map<Unit::Pressure, UnitSystem> RelatedUnitSystems<Unit::Pressure>{
  {Unit::Pressure::PoundPerSquareFoot, UnitSystem::FootPoundSecondRankine},
  {Unit::Pressure::PoundPerSquareInch, UnitSystem::InchPoundSecondRankine},
};
 
template <>
inline const std::map<Unit::Pressure, std::string_view> Abbreviations<Unit::Pressure>{
  {Unit::Pressure::Pascal,             "Pa"      },
  {Unit::Pressure::Kilopascal,         "kPa"     },
  {Unit::Pressure::Megapascal,         "MPa"     },
  {Unit::Pressure::Gigapascal,         "GPa"     },
  {Unit::Pressure::Bar,                "bar"     },
  {Unit::Pressure::Atmosphere,         "atm"     },
  {Unit::Pressure::PoundPerSquareFoot, "lbf/ft^2"},
  {Unit::Pressure::PoundPerSquareInch, "lbf/in^2"},
};
 
// clang-format off
 
template <>
inline const std::unordered_map<std::string_view, Unit::Pressure> Spellings<Unit::Pressure>{
    {"Pa",         Unit::Pressure::Pascal            },
    {"N/m^2",      Unit::Pressure::Pascal            },
    {"N/m2",       Unit::Pressure::Pascal            },
    {"kg/(m·s^2)", Unit::Pressure::Pascal            },
    {"kg/(m·s2)",  Unit::Pressure::Pascal            },
    {"kg/(m*s^2)", Unit::Pressure::Pascal            },
    {"kg/(m*s2)",  Unit::Pressure::Pascal            },
    {"kg/m/s^2",   Unit::Pressure::Pascal            },
    {"kg/m/s2",    Unit::Pressure::Pascal            },
    {"kPa",        Unit::Pressure::Kilopascal        },
    {"kN/m^2",     Unit::Pressure::Kilopascal        },
    {"kN/m2",      Unit::Pressure::Kilopascal        },
    {"MPa",        Unit::Pressure::Megapascal        },
    {"N/mm^2",     Unit::Pressure::Megapascal        },
    {"N/mm2",      Unit::Pressure::Megapascal        },
    {"MN/m^2",     Unit::Pressure::Megapascal        },
    {"MN/m2",      Unit::Pressure::Megapascal        },
    {"GPa",        Unit::Pressure::Gigapascal        },
    {"GN/m^2",     Unit::Pressure::Gigapascal        },
    {"GN/m2",      Unit::Pressure::Gigapascal        },
    {"kN/mm^2",    Unit::Pressure::Gigapascal        },
    {"kN/mm2",     Unit::Pressure::Gigapascal        },
    {"bar",        Unit::Pressure::Bar               },
    {"atm",        Unit::Pressure::Atmosphere        },
    {"atmosphere", Unit::Pressure::Atmosphere        },
    {"lbf/ft^2",   Unit::Pressure::PoundPerSquareFoot},
    {"lbf/ft2",    Unit::Pressure::PoundPerSquareFoot},
    {"lb/ft^2",    Unit::Pressure::PoundPerSquareFoot},
    {"lb/ft2",     Unit::Pressure::PoundPerSquareFoot},
    {"psf",        Unit::Pressure::PoundPerSquareFoot},
    {"lbf/in^2",   Unit::Pressure::PoundPerSquareInch},
    {"lbf/in2",    Unit::Pressure::PoundPerSquareInch},
    {"lb/in^2",    Unit::Pressure::PoundPerSquareInch},
    {"lb/in2",     Unit::Pressure::PoundPerSquareInch},
    {"psi",        Unit::Pressure::PoundPerSquareInch},
};
 
// clang-format on
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Pascal>::FromStandard(
    NumericType& /*value*/) noexcept {}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Pascal>::ToStandard(
    NumericType& /*value*/) noexcept {}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Kilopascal>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.001L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Kilopascal>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(1000.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Megapascal>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.000001L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Megapascal>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(1000000.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Gigapascal>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.000000001L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Gigapascal>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(1000000000.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Bar>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.00001L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Bar>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(100000.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Atmosphere>::FromStandard(
    NumericType& value) noexcept {
  value /= static_cast<NumericType>(101325.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::Atmosphere>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(101325.0L);
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::PoundPerSquareFoot>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.3048L) * static_cast<NumericType>(0.3048L)
           / (static_cast<NumericType>(0.45359237L) * static_cast<NumericType>(9.80665L));
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::PoundPerSquareFoot>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.45359237L) * static_cast<NumericType>(9.80665L)
           / (static_cast<NumericType>(0.3048L) * static_cast<NumericType>(0.3048L));
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::PoundPerSquareInch>::FromStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.0254L) * static_cast<NumericType>(0.0254L)
           / (static_cast<NumericType>(0.45359237L) * static_cast<NumericType>(9.80665L));
}
 
template <>
template <typename NumericType>
inline constexpr void Conversion<Unit::Pressure, Unit::Pressure::PoundPerSquareInch>::ToStandard(
    NumericType& value) noexcept {
  value *= static_cast<NumericType>(0.45359237L) * static_cast<NumericType>(9.80665L)
           / (static_cast<NumericType>(0.0254L) * static_cast<NumericType>(0.0254L));
}
 
template <typename NumericType>
inline const std::map<Unit::Pressure,
                      std::function<void(NumericType* values, const std::size_t size)>>
    MapOfConversionsFromStandard<Unit::Pressure, NumericType>{
      {Unit::Pressure::Pascal,
       Conversions<Unit::Pressure, Unit::Pressure::Pascal>::FromStandard<NumericType>            },
      {Unit::Pressure::Kilopascal,
       Conversions<Unit::Pressure, Unit::Pressure::Kilopascal>::FromStandard<NumericType>        },
      {Unit::Pressure::Megapascal,
       Conversions<Unit::Pressure, Unit::Pressure::Megapascal>::FromStandard<NumericType>        },
      {Unit::Pressure::Gigapascal,
       Conversions<Unit::Pressure, Unit::Pressure::Gigapascal>::FromStandard<NumericType>        },
      {Unit::Pressure::Bar,
       Conversions<Unit::Pressure, Unit::Pressure::Bar>::FromStandard<NumericType>               },
      {Unit::Pressure::Atmosphere,
       Conversions<Unit::Pressure, Unit::Pressure::Atmosphere>::FromStandard<NumericType>        },
      {Unit::Pressure::PoundPerSquareFoot,
       Conversions<Unit::Pressure, Unit::Pressure::PoundPerSquareFoot>::FromStandard<NumericType>},
      {Unit::Pressure::PoundPerSquareInch,
       Conversions<Unit::Pressure, Unit::Pressure::PoundPerSquareInch>::FromStandard<NumericType>},
};
 
template <typename NumericType>
inline const std::map<Unit::Pressure,
                      std::function<void(NumericType* const values, const std::size_t size)>>
    MapOfConversionsToStandard<Unit::Pressure, NumericType>{
      {Unit::Pressure::Pascal,
       Conversions<Unit::Pressure, Unit::Pressure::Pascal>::ToStandard<NumericType>            },
      {Unit::Pressure::Kilopascal,
       Conversions<Unit::Pressure, Unit::Pressure::Kilopascal>::ToStandard<NumericType>        },
      {Unit::Pressure::Megapascal,
       Conversions<Unit::Pressure, Unit::Pressure::Megapascal>::ToStandard<NumericType>        },
      {Unit::Pressure::Gigapascal,
       Conversions<Unit::Pressure, Unit::Pressure::Gigapascal>::ToStandard<NumericType>        },
      {Unit::Pressure::Bar,
       Conversions<Unit::Pressure, Unit::Pressure::Bar>::ToStandard<NumericType>               },
      {Unit::Pressure::Atmosphere,
       Conversions<Unit::Pressure, Unit::Pressure::Atmosphere>::ToStandard<NumericType>        },
      {Unit::Pressure::PoundPerSquareFoot,
       Conversions<Unit::Pressure, Unit::Pressure::PoundPerSquareFoot>::ToStandard<NumericType>},
      {Unit::Pressure::PoundPerSquareInch,
       Conversions<Unit::Pressure, Unit::Pressure::PoundPerSquareInch>::ToStandard<NumericType>},
};
 
}  // namespace Internal
 
}  // namespace PhQ
 
#endif  // PHQ_UNIT_PRESSURE_HPP