vle-vector-getperpvector


(vle-vector-getperpvector  vec)

This function returns a vector which is perpendicular to vec.

Arguments

vec  a 2d or 3d vector list

Return

(vecX vecY vecZ)  always a 3d vector list, perpendicular (orthogonal) to input vector vec

Example

(setq vec '(2 0 0))
(vle-vector-getperpvector vec)

(0.0 1.0 0.0)

(setq vec '(2 0 3))
(vle-vector-getperpvector vec)
(0.0 1.0 0.0)

(setq vec '(2 -1 1))
(vle-vector-getperpvector vec)
(0.447213595499958 0.894427190999916 0.0)

Remarks

input vector must not be unit-length (non-normalised vectors are allowed)


©  Bricsys NV. All rights reserved.