Struct double_dot_state::CardinalSpline

pub struct CardinalSpline<P>
where
    P: Point,
{ /* private fields */ }

A spline interpolated continuously across the nearest four control points, with the position of the curve specified at every control point and the tangents computed automatically.

Note the Catmull-Rom spline is a special case of Cardinal spline where the tension is 0.5.

Interpolation

The curve passes through every control point.

Tangency

Automatically defined at each control point.

Continuity

C1 continuous.

Usage

let points = [
    vec2(-1.0, -20.0),
    vec2(3.0, 2.0),
    vec2(5.0, 3.0),
    vec2(9.0, 8.0),
];
let cardinal = CardinalSpline::new(0.3, points).to_curve();
let positions: Vec<_> = cardinal.iter_positions(100).collect();

Implementations

impl<P> CardinalSpline<P>

where P: Point,

pub fn new(tension: f32, control_points: impl Into<Vec<P>>) -> CardinalSpline<P>

Build a new Cardinal spline.

pub fn new_catmull_rom(control_points: impl Into<Vec<P>>) -> CardinalSpline<P>

Build a new Catmull-Rom spline, the special case of a Cardinal spline where tension = 1/2.

Trait Implementations

impl<P> CubicGenerator<P> for CardinalSpline<P>

where P: Point,

fn to_curve(&self) -> CubicCurve<P>

Build a [CubicCurve] by computing the interpolation coefficients for each curve segment.