Re: [Algorithms] Nearest point on plane for 2D IK

[Serge C. <co...@po...>]

Hi,

T'es perdu? C'est toi qui emcombre la mail-list avec des questions de blaireaux. Si tu veux
revenir fair un stage au SEA, tu quand meme le bienvenu.
For info look in Graphics Gems p388: Intersection of a Ray with a sphere.
Serge Couvet

David Kornmann wrote:

> Hi,
>
> I am looking for an algorithm to compute the intersecting point P between a ray and
> a sphere. I know the center C and the radius R of the sphere, the origin O of the ray
> and its direction V. Basically I need to find the closest intersection from O.
>
> But that's not all: In addition to this, IF the ray does not intersect or is tangent to the
> sphere, I need to know the tangential point with the sphere.
>
> Does anybody know a fast and accurate solution to this problem? maybe a good web
> site or some code would greatly help!...
>
> Thanks,
>
> David Kornmann.
> --
>
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