Sprout/sprout/math/quaternion/semipolar.hpp
2019-01-07 17:47:17 +09:00

36 lines
1.3 KiB
C++

/*=============================================================================
Copyright (c) 2011-2019 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_MATH_QUATERNION_SEMIPOLAR_HPP
#define SPROUT_MATH_QUATERNION_SEMIPOLAR_HPP
#include <sprout/config.hpp>
#include <sprout/math/cos.hpp>
#include <sprout/math/sin.hpp>
#include <sprout/math/quaternion/quaternion.hpp>
namespace sprout {
namespace math {
//
// semipolar
//
template<typename T>
inline SPROUT_CONSTEXPR sprout::math::quaternion<T>
semipolar(T const& rho, T const& alpha, T const& theta1, T const& theta2) {
return rho * sprout::math::quaternion<T>(
sprout::math::cos(alpha) * sprout::math::cos(theta1),
sprout::math::cos(alpha) * sprout::math::sin(theta1),
sprout::math::sin(alpha) * sprout::math::cos(theta2),
sprout::math::sin(alpha) * sprout::math::sin(theta2)
);
}
} // namespace math
using sprout::math::semipolar;
} // namespace sprout
#endif // #ifndef SPROUT_MATH_QUATERNION_SEMIPOLAR_HPP