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Diffstat (limited to '3rdparty/include/glm/gtx/polar_coordinates.inl')
| -rw-r--r-- | 3rdparty/include/glm/gtx/polar_coordinates.inl | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/3rdparty/include/glm/gtx/polar_coordinates.inl b/3rdparty/include/glm/gtx/polar_coordinates.inl new file mode 100644 index 0000000..d1afbb2 --- /dev/null +++ b/3rdparty/include/glm/gtx/polar_coordinates.inl @@ -0,0 +1,66 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref gtx_polar_coordinates +/// @file glm/gtx/polar_coordinates.inl +/// @date 2007-03-06 / 2011-06-07 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////// + +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>( + atan(xz_dist, 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 |