Struct BeamSpline 

pub struct BeamSpline { /* private fields */ }

ln φ(u), the logarithm of the beam per µs at flight time u, as a uniform cubic B-spline in x = ln u over knot_span_us. Faster than that span, ln φ continues from the spline’s value and slope at the first knot with the spline’s mean curvature over the span, so a beam whose curvature changes across the span is continued with its mean; slower, the last interval’s cubic continues. The curve is the beam only over the flight times a fit integrates.

Implementations

impl BeamSpline

pub fn intervals(&self) -> usize

Number of spline intervals; there are three more coefficients.

pub fn coefficients(&self) -> &[f64]

The spline’s coefficients.

pub fn knot_span_us(&self) -> (f64, f64)

The flight times, in µs, the knots span.

pub fn basis(&self, u_us: f64) -> [(usize, f64); 5]

(index, weight) pairs with ln φ(u) = Σ weight · coefficients[index], for u_us > 0; an index may appear more than once.

pub fn per_us(&self, u_us: f64) -> f64

The beam per µs at flight time u_us > 0.

Trait Implementations

impl Clone for BeamSpline

fn clone(&self) -> BeamSpline

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BeamSpline

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for BeamSpline

fn eq(&self, other: &BeamSpline) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BeamSpline