diff options
author | Nikolas <nikolas@boutalas.com> | 2024-10-27 12:52:55 +0200 |
---|---|---|
committer | Nikolas <nikolas@boutalas.com> | 2024-10-27 12:52:55 +0200 |
commit | 43394c8a8908442982e3a7e25975c31b3c952923 (patch) | |
tree | 2facd563e29f48fe3b0653ac5c113998940b4d5e /3rdparty/include/glm/gtx/closest_point.inl |
Diffstat (limited to '3rdparty/include/glm/gtx/closest_point.inl')
-rw-r--r-- | 3rdparty/include/glm/gtx/closest_point.inl | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/3rdparty/include/glm/gtx/closest_point.inl b/3rdparty/include/glm/gtx/closest_point.inl new file mode 100644 index 0000000..89bb1a8 --- /dev/null +++ b/3rdparty/include/glm/gtx/closest_point.inl @@ -0,0 +1,75 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// 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_closest_point +/// @file glm/gtx/closest_point.inl +/// @date 2005-12-30 / 2011-06-07 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////////////////////// + +namespace glm +{ + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec3<T, P> closestPointOnLine + ( + tvec3<T, P> const & point, + tvec3<T, P> const & a, + tvec3<T, P> const & b + ) + { + T LineLength = distance(a, b); + tvec3<T, P> Vector = point - a; + tvec3<T, P> LineDirection = (b - a) / LineLength; + + // Project Vector to LineDirection to get the distance of point from a + T Distance = dot(Vector, LineDirection); + + if(Distance <= T(0)) return a; + if(Distance >= LineLength) return b; + return a + LineDirection * Distance; + } + + template <typename T, precision P> + GLM_FUNC_QUALIFIER tvec2<T, P> closestPointOnLine + ( + tvec2<T, P> const & point, + tvec2<T, P> const & a, + tvec2<T, P> const & b + ) + { + T LineLength = distance(a, b); + tvec2<T, P> Vector = point - a; + tvec2<T, P> LineDirection = (b - a) / LineLength; + + // Project Vector to LineDirection to get the distance of point from a + T Distance = dot(Vector, LineDirection); + + if(Distance <= T(0)) return a; + if(Distance >= LineLength) return b; + return a + LineDirection * Distance; + } + +}//namespace glm |