arts_conversions.h

Go to the documentation of this file.

/* Copyright (C) 2019
 * Richard Larsson <ric.larsson@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2, or (at your option) any
 * later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
 * USA. */
 
#ifndef CONVERSIONS_IN_ARTS_H
#define CONVERSIONS_IN_ARTS_H
 
#include <cmath>
 
#include "arts_constants.h"
 
namespace Conversion {
using namespace Constant;
 
constexpr auto deg2rad(auto x) noexcept { return x * one_degree_in_radians; }
 
constexpr auto rad2deg(auto x) noexcept { return x / one_degree_in_radians; }
 
auto cosd(auto x) noexcept { return std::cos(deg2rad(x)); }
 
auto sind(auto x) noexcept { return std::sin(deg2rad(x)); }
 
auto tand(auto x) noexcept { return std::tan(deg2rad(x)); }
 
auto acosd(auto x) noexcept { return rad2deg(std::acos(x)); }
 
auto asind(auto x) noexcept { return rad2deg(std::asin(x)); }
 
auto atand(auto x) noexcept { return rad2deg(std::atan(x)); }
 
auto atan2d(auto y, auto x) noexcept { return rad2deg(std::atan2(y, x)); }
 
constexpr auto kaycm2freq(auto x) noexcept { return x * (100 * c); }
 
constexpr auto freq2kaycm(auto x) noexcept { return x / (100 * c); }
 
constexpr auto angcm2freq(auto x) noexcept {
  return x * kaycm2freq(inv_two_pi);
}
 
constexpr auto freq2angcm(auto x) noexcept {
  return x / kaycm2freq(inv_two_pi);
}
 
constexpr auto angfreq2freq(auto x) noexcept { return x * inv_two_pi; }
 
constexpr auto freq2angfreq(auto x) noexcept { return x * two_pi; }
 
constexpr auto wavelen2freq(auto x) noexcept { return c / x; }
 
constexpr auto freq2wavelen(auto x) noexcept { return c / x; }
 
constexpr auto hz2ghz(auto x) noexcept { return x * 1e-9; }
 
constexpr auto ghz2hz(auto x) noexcept { return x * 1e9; }
 
constexpr auto atm2pa(auto x) noexcept { return x * 101'325.0; }
 
constexpr auto pa2atm(auto x) noexcept { return x / 101'325.0; }
 
constexpr auto bar2pa(auto x) noexcept { return x * 1e5; }
 
constexpr auto pa2bar(auto x) noexcept { return x * 1e-5; }
 
constexpr auto torr2pa(auto x) noexcept { return x * atm2pa(1.0 / 760.0); }
 
constexpr auto pa2torr(auto x) noexcept { return x / atm2pa(1.0 / 760.0); }
 
constexpr auto mhz_per_torr2hz_per_pa(auto x) noexcept {
  return x * pa2torr(1e6);
}
 
constexpr auto celsius2kelvin(auto x) noexcept { return x + 273.15; }
 
constexpr auto kelvin2celsius(auto x) noexcept { return x - 273.15; }
 
constexpr auto kaycm_per_cmsquared2hz_per_msquared(auto x) noexcept {
  return x * kaycm2freq(1e-4);
}
 
constexpr auto hz_per_msquared2kaycm_per_cmsquared(auto x) noexcept {
  return x * freq2kaycm(1e4);
}
 
constexpr auto kaycm_per_atm2hz_per_pa(auto x) noexcept {
  return x * kaycm2freq(pa2atm(1));
}
 
constexpr auto hz_per_pa2kaycm_per_atm(auto x) noexcept {
  return x * freq2kaycm(atm2pa(1));
}
 
constexpr auto kaycm2joule(auto x) noexcept { return x * kaycm2freq(h); }
 
constexpr auto hz2joule(auto x) noexcept { return x * h; }
 
constexpr auto mhz2joule(auto x) noexcept { return hz2joule(x) * 1e6; }
 
constexpr auto kelvin2joule(auto x) noexcept { return x * k; }
 
constexpr auto joule2hz(auto x) noexcept { return x / h; }
 
constexpr auto joule2kaycm(auto x) noexcept { return x / kaycm2freq(h); }
 
constexpr auto angstrom2meter(auto x) noexcept { return x * 1e-10; }
 
constexpr auto meter2angstrom(auto x) noexcept { return x * 1e10; }
};  // namespace Conversion
 
#endif