Struct bevy::math::prelude::CubicBezier

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

A spline composed of a single cubic Bezier curve.

Useful for user-drawn curves with local control, or animation easing. See CubicSegment::new_bezier for use in easing.

Interpolation

The curve only passes through the first and last control point in each set of four points.

Tangency

Manually defined by the two intermediate control points within each set of four points.

Continuity

At minimum C0 continuous, up to C2. Continuity greater than C0 can result in a loss of local control over the spline due to the curvature constraints.

Usage

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

Implementations

impl<P> CubicBezier<P>

where P: Point,

pub fn new(control_points: impl Into<Vec<[P; 4]>>) -> CubicBezier<P>

Create a new cubic Bezier curve from sets of control points.

Trait Implementations

impl<P> CubicGenerator<P> for CubicBezier<P>

where P: Point,

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

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