Function qsym2::auxiliary::geometry::get_standard_positive_pole

source · 
pub fn get_standard_positive_pole(
    axis: &Vector3<f64>,
    thresh: f64,
) -> Vector3<f64>
Expand description

Returns the standard positive pole of a rotation axis.

The definition of standard positive poles can be found in S.L. Altmann, Rotations, Quaternions, and Double Groups (Dover Publications, Inc., New York, 2005) (Chapter 9).

§Arguments

  • axis - An axis of rotation (proper or improper).
  • thresh - Threshold for comparisons.

§Returns

The positive pole of axis.

§Panics

Panics if the resulting pole is a null vector.