mirror/glm
1
0
Fork 0
mirror of https://github.com/g-truc/glm.git synced 2024-11-30 03:44:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update closest_point.inl

Browse Source
This commit is contained in:
SiliconKiwi 2014-09-16 09:11:34 +12:00
parent ad85092433
commit b5409fb728
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
glm/gtx/closest_point.inl
View File

@ -28,4 +28,25 @@ namespace glm
if(Distance >= LineLength) return b;
return a + LineDirection * Distance;
}
template <typename T, precision P>
GLM_FUNC_QUALIFIER detail::tvec2<T, P> closestPointOnLine
(
detail::tvec2<T, P> const & point,
detail::tvec2<T, P> const & a,
detail::tvec2<T, P> const & b
)
{
T LineLength = distance(a, b);
detail::tvec2<T, P> Vector = point - a;
detail::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