I have a set of co-ordiantes with x, y and z values. I'm trying to shift the co-ordiantes randomly to produce an overall shift of 1 (mm).
I know that if i'm shifting x y and z by random amounts of a b and c respectively, then:
sqrt(a^2 + b^2 + c^2) = 1
How can I randomly produce a vector (a, b, c) that satisfies the above equation?