polar_coordinates.inl

 
 
namespace glm
{
    template<typename T, qualifier Q>
    GLM_FUNC_QUALIFIER vec<3, T, Q> polar
    (
        vec<3, T, Q> const& euclidean
    )
    {
        T const Length(length(euclidean));
        vec<3, T, Q> const tmp(euclidean / Length);
        T const xz_dist(sqrt(tmp.x * tmp.x + tmp.z * tmp.z));
 
        return vec<3, T, Q>(
            asin(tmp.y),    // latitude
            atan(tmp.x, tmp.z),     // longitude
            xz_dist);               // xz distance
    }
 
    template<typename T, qualifier Q>
    GLM_FUNC_QUALIFIER vec<3, T, Q> euclidean
    (
        vec<2, T, Q> const& polar
    )
    {
        T const latitude(polar.x);
        T const longitude(polar.y);
 
        return vec<3, T, Q>(
            cos(latitude) * sin(longitude),
            sin(latitude),
            cos(latitude) * cos(longitude));
    }
 
}//namespace glm