Struct bevy::math::prelude::CubicCardinalSpline
pub struct CubicCardinalSpline<P>where
P: VectorSpace,{ /* private fields */ }
Expand description
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. The associated CubicCurve
has one segment between each pair of adjacent control points.
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
Tangents are automatically computed based on the positions of control points.
§Continuity
The curve is at minimum C1, meaning that it is continuous (it has no holes or jumps), and its tangent vector is also well-defined everywhere, without sudden jumps.
§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 = CubicCardinalSpline::new(0.3, points).to_curve();
let positions: Vec<_> = cardinal.iter_positions(100).collect();
Implementations§
§impl<P> CubicCardinalSpline<P>where
P: VectorSpace,
impl<P> CubicCardinalSpline<P>where
P: VectorSpace,
pub fn new(
tension: f32,
control_points: impl Into<Vec<P>>
) -> CubicCardinalSpline<P>
pub fn new( tension: f32, control_points: impl Into<Vec<P>> ) -> CubicCardinalSpline<P>
Build a new Cardinal spline.
pub fn new_catmull_rom(
control_points: impl Into<Vec<P>>
) -> CubicCardinalSpline<P>
pub fn new_catmull_rom( control_points: impl Into<Vec<P>> ) -> CubicCardinalSpline<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 CubicCardinalSpline<P>where
P: VectorSpace,
impl<P> CubicGenerator<P> for CubicCardinalSpline<P>where
P: VectorSpace,
§fn to_curve(&self) -> CubicCurve<P>
fn to_curve(&self) -> CubicCurve<P>
CubicCurve
by computing the interpolation coefficients for each curve segment.Auto Trait Implementations§
impl<P> Freeze for CubicCardinalSpline<P>
impl<P> RefUnwindSafe for CubicCardinalSpline<P>where
P: RefUnwindSafe,
impl<P> Send for CubicCardinalSpline<P>where
P: Send,
impl<P> Sync for CubicCardinalSpline<P>where
P: Sync,
impl<P> Unpin for CubicCardinalSpline<P>where
P: Unpin,
impl<P> UnwindSafe for CubicCardinalSpline<P>where
P: UnwindSafe,
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