I'm trying to find the simplest way to locate points on a 3D vector. I have 2 points (a,b,c) (d,e,f) which define a 3D vector. I know the midpoint between those points. [(a,b,c)+(d,e,f)]/2 I have a linear "object" with a known length L and I want to find the endpoints (u,v,w),(x,y,z) of that object centered at the midpoint and oriented along the vector. Thanks!