Struct AngleGraph2

pub struct AngleGraph2 {
    pub a: Trig2,
    pub b: Trig2,
    pub c: Trig2,
    pub branch: Branch,
}

The solution u(t) of a(t) cos u + b(t) sin u = c(t) chosen by branch, as a graph over its second coordinate: the point at t is (u(t), t).

Fields

a: Trig2

Coefficient of cos u.

b: Trig2

Coefficient of sin u.

c: Trig2

Right-hand side.

branch: Branch

Which of the two solutions.

Implementations

impl AngleGraph2

pub fn angle(&self, t: f64) -> Option<f64>

The angle at t, in (-pi, pi], or None where no solution exists.

pub fn slope(&self, t: f64) -> Option<f64>

du/dt, by differentiating a cos u + b sin u - c = 0 implicitly; None at a branch end, where the tangent is parallel to u.

pub fn bend(&self, t: f64) -> Option<f64>

d2u/dt2.

pub fn is_finite(&self) -> bool

Whether every coefficient is finite.

Trait Implementations

impl Clone for AngleGraph2

fn clone(&self) -> AngleGraph2

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AngleGraph2

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

Formats the value using the given formatter.

impl PartialEq for AngleGraph2

fn eq(&self, other: &AngleGraph2) -> 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 Copy for AngleGraph2

impl StructuralPartialEq for AngleGraph2