[−]Trait piet_common::kurbo::ParamCurve

pub trait ParamCurve {
    fn eval(&self, t: f64) -> Point;
    fn subsegment(&self, range: Range<f64>) -> Self;

    fn subdivide(&self) -> (Self, Self) { ... }
    fn start(&self) -> Point { ... }
    fn end(&self) -> Point { ... }
}

A curve parametrized by a scalar.

If the result is interpreted as a point, this represents a curve. But the result can be interpreted as a vector as well.

Required methods

`fn eval(&self, t: f64) -> Point`

Evaluate the curve at parameter t.

Generally t is in the range [0..1].

`fn subsegment(&self, range: Range<f64>) -> Self`

Get a subsegment of the curve for the given parameter range.

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Provided methods

`fn subdivide(&self) -> (Self, Self)`

Subdivide into (roughly) halves.

`fn start(&self) -> Point`

The start point.

`fn end(&self) -> Point`

The end point.

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Implementors

`impl ParamCurve for PathSeg`

`fn eval(&self, t: f64) -> Point`

`fn subsegment(&self, range: Range<f64>) -> PathSeg`

`impl ParamCurve for ConstPoint`

`fn eval(&self, _t: f64) -> Point`

`fn subsegment(&self, _range: Range<f64>) -> ConstPoint`

`impl ParamCurve for CubicBez`

`fn eval(&self, t: f64) -> Point`

`fn start(&self) -> Point`

`fn end(&self) -> Point`

`fn subsegment(&self, range: Range<f64>) -> CubicBez`

`fn subdivide(&self) -> (CubicBez, CubicBez)`

Subdivide into halves, using de Casteljau.

`impl ParamCurve for Line`

`fn eval(&self, t: f64) -> Point`

`fn start(&self) -> Point`

`fn end(&self) -> Point`

`fn subsegment(&self, range: Range<f64>) -> Line`

`impl ParamCurve for QuadBez`

`fn eval(&self, t: f64) -> Point`

`fn start(&self) -> Point`

`fn end(&self) -> Point`

`fn subdivide(&self) -> (QuadBez, QuadBez)`

Subdivide into halves, using de Casteljau.

`fn subsegment(&self, range: Range<f64>) -> QuadBez`

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