GRK/dependencies/glm/gtx/polar_coordinates.inl

38 lines
771 B
Plaintext
Raw Normal View History

2022-01-12 16:07:16 +01:00
/// @ref gtx_polar_coordinates
/// @file glm/gtx/polar_coordinates.inl
namespace glm
{
template <typename T, precision P>
GLM_FUNC_QUALIFIER tvec3<T, P> polar
(
tvec3<T, P> const & euclidean
)
{
T const Length(length(euclidean));
tvec3<T, P> const tmp(euclidean / Length);
T const xz_dist(sqrt(tmp.x * tmp.x + tmp.z * tmp.z));
return tvec3<T, P>(
asin(tmp.y), // latitude
atan(tmp.x, tmp.z), // longitude
xz_dist); // xz distance
}
template <typename T, precision P>
GLM_FUNC_QUALIFIER tvec3<T, P> euclidean
(
tvec2<T, P> const & polar
)
{
T const latitude(polar.x);
T const longitude(polar.y);
return tvec3<T, P>(
cos(latitude) * sin(longitude),
sin(latitude),
cos(latitude) * cos(longitude));
}
}//namespace glm