RhinoCommon API

## QuaternionRotate Method |

Rotates a 3d vector. This operation is also called conjugation,
because the result is the same as
(q.Conjugate()*(0,x,y,x)*q/q.LengthSquared).Vector.

Syntax

- v
- Type: Rhino.GeometryVector3d

The vector to be rotated.

R*v, where R is the rotation defined by the unit quaternion. This is mathematically the same as the values (Inverse(q)*(0,x,y,z)*q).Vector and (q.Conjugate()*(0,x,y,x)*q/q.LengthSquared).Vector.

Remarks

If you need to rotate more than a dozen or so vectors,
it will be more efficient to calculate the rotation
matrix once and use it repeatedly.

See Also