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36
vendor/include/glm/gtx/polar_coordinates.inl
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36
vendor/include/glm/gtx/polar_coordinates.inl
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/// @ref gtx_polar_coordinates
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namespace glm
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{
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> polar
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(
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vec<3, T, Q> const& euclidean
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)
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{
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T const Length(length(euclidean));
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vec<3, T, Q> const tmp(euclidean / Length);
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T const xz_dist(sqrt(tmp.x * tmp.x + tmp.z * tmp.z));
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return vec<3, T, Q>(
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asin(tmp.y), // latitude
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atan(tmp.x, tmp.z), // longitude
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xz_dist); // xz distance
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}
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template<typename T, qualifier Q>
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GLM_FUNC_QUALIFIER vec<3, T, Q> euclidean
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(
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vec<2, T, Q> const& polar
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)
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{
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T const latitude(polar.x);
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T const longitude(polar.y);
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return vec<3, T, Q>(
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cos(latitude) * sin(longitude),
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sin(latitude),
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cos(latitude) * cos(longitude));
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}
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}//namespace glm
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