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authorsaurabhb172020-02-26 16:14:17 +0530
committerGitHub2020-02-26 16:14:17 +0530
commit003d02608917e7a69d1a98438837e94ccf68352a (patch)
tree1392c90227aeea231c1d86371131e04c40382918 /include/gal/opengl/glm/gtx/polar_coordinates.inl
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Merge pull request #3 from saurabhb17/master
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+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2007-03-06
+// Updated : 2009-05-01
+// Licence : This source is under MIT License
+// File : glm/gtx/polar_coordinates.inl
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace glm
+{
+ template <typename T>
+ GLM_FUNC_QUALIFIER detail::tvec3<T> polar
+ (
+ detail::tvec3<T> const & euclidean
+ )
+ {
+ T const Length(length(euclidean));
+ detail::tvec3<T> const tmp(euclidean / Length);
+ T const xz_dist(sqrt(tmp.x * tmp.x + tmp.z * tmp.z));
+
+#ifdef GLM_FORCE_RADIANS
+ return detail::tvec3<T>(
+ atan(xz_dist, tmp.y), // latitude
+ atan(tmp.x, tmp.z), // longitude
+ xz_dist); // xz distance
+#else
+ return detail::tvec3<T>(
+ degrees(atan(xz_dist, tmp.y)), // latitude
+ degrees(atan(tmp.x, tmp.z)), // longitude
+ xz_dist); // xz distance
+#endif
+ }
+
+ template <typename T>
+ GLM_FUNC_QUALIFIER detail::tvec3<T> euclidean
+ (
+ detail::tvec2<T> const & polar
+ )
+ {
+#ifdef GLM_FORCE_RADIANS
+ T const latitude(polar.x);
+ T const longitude(polar.y);
+#else
+ T const latitude(radians(polar.x));
+ T const longitude(radians(polar.y));
+#endif
+
+ return detail::tvec3<T>(
+ cos(latitude) * sin(longitude),
+ sin(latitude),
+ cos(latitude) * cos(longitude));
+ }
+
+}//namespace glm