pub fn angular_bisector_normal(
a: &SphericalPoint,
b: &SphericalPoint,
) -> [f64; 3]Expand description
Returns the unit normal of the angular bisector plane between a and b.
The bisector plane passes through the origin and is perpendicular to the
great circle arc from a to b, positioned at the midpoint.
Points with dot(normal, p) > 0 are on A’s side.