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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| //====================================================================================================================== | ||
| /* | ||
| Kyosu - Complex Without Complexes | ||
| Copyright : KYOSU Contributors & Maintainers | ||
| SPDX-License-Identifier: BSL-1.0 | ||
| */ | ||
| //====================================================================================================================== | ||
| #pragma once | ||
|
|
||
| #include <kyosu/details/invoke.hpp> | ||
|
|
||
| namespace kyosu::tags | ||
| { | ||
| struct callable_lerp : eve::elementwise | ||
| { | ||
| using callable_tag_type = callable_lerp; | ||
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| KYOSU_DEFERS_CALLABLE(lerp_); | ||
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| static KYOSU_FORCEINLINE auto deferred_call(auto | ||
| , eve::ordered_value auto const& v0 | ||
| , eve::ordered_value auto const& v1 | ||
| , eve::ordered_value auto const& t) noexcept | ||
| { | ||
| return eve::lerp(v0, v1, t); | ||
| } | ||
|
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| KYOSU_FORCEINLINE auto operator()(auto const& target0, auto const& target1, auto const & target2) const noexcept | ||
| -> decltype(eve::tag_invoke(*this, target0, target1, target2)) | ||
| { | ||
| return eve::tag_invoke(*this, target0, target1, target2); | ||
| } | ||
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|
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| template<typename... T> | ||
| eve::unsupported_call<callable_lerp(T&&...)> operator()(T&&... x) const | ||
| requires(!requires { eve::tag_invoke(*this, KYOSU_FWD(x)...); }) = delete; | ||
| }; | ||
| } | ||
|
|
||
| namespace kyosu | ||
| { | ||
| //====================================================================================================================== | ||
| //! @addtogroup functions | ||
| //! @{ | ||
| //! @var lerp | ||
| //! @brief Computes the linear interpolation. | ||
| //! | ||
| //! **Defined in Header** | ||
| //! | ||
| //! @code | ||
| //! #include <kyosu/functions.hpp> | ||
| //! @endcode | ||
| //! | ||
| //! @groupheader{Callable Signatures} | ||
| //! | ||
| //! @code | ||
| //! namespace kyosu | ||
| //! { | ||
| //! template<kyosu::concepts::cayley_dickson T0, kyosu::concepts::cayley_dickson T1 > constexpr auto lerp(T0 z0, T1, z1, auto eve::ordered_value t) noexcept; | ||
| //! template<eve::ordered_value T0, kyosu::concepts::cayley_dickson T1> > constexpr auto lerp(T0 z0, T1, z1, auto eve::ordered_value t) noexcept; | ||
| //! template<kyosu::concepts::cayley_dickson T0, eve::ordered_value T1 > constexpr auto lerp(T0 z0, T1, z1, auto eve::ordered_value t) noexcept; | ||
| //! template<eve::ordered_value T0, ordered_value T1> > constexpr auto lerp(T0 z0, T1, z1, auto eve::ordered_value t) noexcept; | ||
| ///! } | ||
| //! @endcode | ||
| //! | ||
| //! **Parameters** | ||
| //! | ||
| //! * `z0, z1` : Value to process. | ||
| //! * `t` : floating value interpolation coefficient. | ||
| //! | ||
| //! **Return value** | ||
| //! | ||
| //! The value of the interpolation (or extrapolation) between `z0` and `z1` is returned. | ||
| //! The call is semantically equivalent to `z0+t*(z1-z0)`. | ||
| //! | ||
| //! @groupheader{Example} | ||
| //! | ||
| //! @godbolt{doc/lerp.cpp} | ||
| //! @} | ||
| //====================================================================================================================== | ||
| inline constexpr tags::callable_lerp lerp = {}; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| //====================================================================================================================== | ||
| /* | ||
| Kyosu - Complex Without Complexes | ||
| Copyright : KYOSU Contributors & Maintainers | ||
| SPDX-License-Identifier: BSL-1.0 | ||
| */ | ||
| //====================================================================================================================== | ||
| #include <kyosu/kyosu.hpp> | ||
| #include <test.hpp> | ||
|
|
||
| TTS_CASE_WITH ( "Check kyosu::lerp over real" | ||
| , kyosu::real_types | ||
| , tts::generate(tts::between(-10,10) | ||
| ,tts::between(-10,10) | ||
| ,tts::between(0, 1) | ||
| ) | ||
| ) | ||
| (auto r0, auto r1, auto t) | ||
| { | ||
| TTS_EQUAL(kyosu::lerp(r0, r1, t), eve::lerp(r0, r1, t)); | ||
| }; | ||
|
|
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| TTS_CASE_WITH ( "Check kyosu::lerp over complex" | ||
| , kyosu::real_types | ||
| , tts::generate(tts::between(-10,10), tts::between(-10,10) | ||
| ,tts::between(-10,10), tts::between(-10,10) | ||
| ,tts::between(0, 1) | ||
| ) | ||
| ) | ||
| (auto r0, auto i0, auto r1, auto i1, auto t) | ||
| { | ||
| auto c0 = kyosu::to_complex(r0,i0); | ||
| auto c1 = kyosu::to_complex(r1,i1); | ||
| TTS_RELATIVE_EQUAL(kyosu::lerp(c0, c1, t), c0+t*(c1-c0), 1e-7); | ||
| }; | ||
|
|
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| TTS_CASE_WITH ( "Check kyosu::lerp over quaternion" | ||
| , kyosu::real_types | ||
| , tts::generate ( tts::between(-10,10), tts::between(-10,10) | ||
| , tts::between(-10,10), tts::between(-10,10) | ||
| , tts::between(-10,10), tts::between(-10,10) | ||
| , tts::between(-10,10), tts::between(-10,10) | ||
| ,tts::between(0, 1) | ||
| ) | ||
| ) | ||
| <typename T>(T r0, T i0, T j0, T k0, T r1, T i1, T j1, T k1, auto t) | ||
| { | ||
| using type = kyosu::as_quaternion_t<T>; | ||
| auto q0 = type(r0,i0,j0,k0); | ||
| auto q1 = type(r1,i1,j1,k1); | ||
| TTS_RELATIVE_EQUAL(kyosu::lerp(q0, q1, t), q0+t*(q1-q0) , 1e-7); | ||
| }; |