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46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2019 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_MATH_QUATERNION_SPHERICAL_HPP
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#define SPROUT_MATH_QUATERNION_SPHERICAL_HPP
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#include <sprout/config.hpp>
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#include <sprout/math/cos.hpp>
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#include <sprout/math/sin.hpp>
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#include <sprout/math/quaternion/quaternion.hpp>
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namespace sprout {
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namespace math {
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//
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// spherical
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//
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namespace detail {
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template<typename T>
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inline SPROUT_CONSTEXPR sprout::math::quaternion<T>
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spherical_impl(T const& rho, T const& theta, T const& phi1, T const& phi2, T const& p1, T const& p2) {
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return rho * sprout::math::quaternion<T>(
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sprout::math::cos(theta) * (p2 * p1),
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sprout::math::sin(theta) * (p2 * p1),
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sprout::math::sin(phi1) * p2,
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sprout::math::sin(phi2)
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);
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}
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} // namespace detail
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template<typename T>
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inline SPROUT_CONSTEXPR sprout::math::quaternion<T>
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spherical(T const& rho, T const& theta, T const& phi1, T const& phi2) {
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return sprout::math::detail::spherical_impl(
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rho, theta, phi1, phi2,
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sprout::math::cos(phi1), sprout::math::cos(phi2)
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);
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}
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} // namespace math
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using sprout::math::spherical;
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_QUATERNION_SPHERICAL_HPP
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