(2017-02-13, 11:00)Philippe Hurbain Wrote:Quote:I would normally search the closest point and then determine the projection on the surface, based on the given direction.I guess you mean "search the closest surface and then..." Problem is that the closest surface may not have an intersection in the given direction. So in my mind it was direction first, raytracing style. My main purpose is to project vertices (or possibly lines) on a surface. Granted it has some relationship with slicerpro, but AFAIK neither vertices nor lines can be projected with slicerpro?
Yes, my mistake... As far as I understand you want a simple projection in a given direction onto a surface (and no slicing)?