Struct druid::piet::kurbo::Line

pub struct Line {
    pub p0: Point,
    pub p1: Point,
}

A single line.

Fields

p0: Point

The line's start point.

p1: Point

The line's end point.

Implementations

impl Line

pub fn new(p0: impl Into<Point>, p1: impl Into<Point>) -> Line

Create a new line.

pub fn length(self) -> f64

The length of the line.

Trait Implementations

impl Add<Vec2> for Line

type Output = Line

The resulting type after applying the + operator.

pub fn add(self, v: Vec2) -> Line

Performs the + operation.

impl Clone for Line

pub fn clone(&self) -> Line

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Line

impl Data for Line

pub fn same(&self, other: &Self) -> bool

Determine whether two values are the same.

impl Debug for Line

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

Formats the value using the given formatter.

impl From<Line> for PathSeg

pub fn from(line: Line) -> PathSeg

Performs the conversion.

impl Mul<Line> for Affine

type Output = Line

The resulting type after applying the * operator.

pub fn mul(self, other: Line) -> Line

Performs the * operation.

impl Mul<Line> for TranslateScale

type Output = Line

The resulting type after applying the * operator.

pub fn mul(self, other: Line) -> Line

Performs the * operation.

impl ParamCurve for Line

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

Evaluate the curve at parameter t.

pub fn start(&self) -> Point

The start point.

pub fn end(&self) -> Point

The end point.

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

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

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

Subdivide into (roughly) halves.

impl ParamCurveArclen for Line

pub fn arclen(&self, _accuracy: f64) -> f64

The arc length of the curve.

pub fn inv_arclen(&self, arclen: f64, accuracy: f64) -> f64

Solve for the parameter that has the given arclength from the start.

impl ParamCurveArea for Line

pub fn signed_area(&self) -> f64

Compute the signed area under the curve.

impl ParamCurveCurvature for Line

pub fn curvature(&self, _t: f64) -> f64

Compute the signed curvature at parameter t.

impl ParamCurveDeriv for Line

type DerivResult = ConstPoint

The parametric curve obtained by taking the derivative of this one.

pub fn deriv(&self) -> ConstPoint

The derivative of the curve.

pub fn gauss_arclen(&self, coeffs: &[(f64, f64)]) -> f64

Estimate arclength using Gaussian quadrature.

impl ParamCurveExtrema for Line

pub fn extrema(&self) -> ArrayVec<[f64; 4]>

Compute the extrema of the curve.

pub fn extrema_ranges(&self) -> ArrayVec<[Range<f64>; 5]>

Return parameter ranges, each of which is monotonic within the range.

pub fn bounding_box(&self) -> Rect

The smallest rectangle that encloses the curve in the range (0..1).

impl ParamCurveNearest for Line

pub fn nearest(&self, p: Point, _accuracy: f64) -> (f64, f64)

Find the point on the curve nearest the given point.

impl PartialEq<Line> for Line

pub fn eq(&self, other: &Line) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Line) -> bool

This method tests for !=.

impl Scalable for Line

pub fn to_px(&self, scale: Scale) -> Line

Converts a Line from display points into pixels, using the x axis scale factor for x and the y axis scale factor for y.

pub fn to_dp(&self, scale: Scale) -> Line

Converts a Line from pixels into display points, using the x axis scale factor for x and the y axis scale factor for y.

impl Shape for Line

type PathElementsIter = LinePathIter

The iterator returned by the path_elements method.

pub fn path_elements(&self, _tolerance: f64) -> LinePathIter

Returns an iterator over this shape expressed as PathEls; that is, as Bézier path elements.

pub fn area(&self) -> f64

Returning zero here is consistent with the contract (area is only meaningful for closed shapes), but an argument can be made that the contract should be tightened to include the Green's theorem contribution.

pub fn perimeter(&self, _accuracy: f64) -> f64

Total length of perimeter.

pub fn winding(&self, _pt: Point) -> i32

Same consideration as area.

pub fn bounding_box(&self) -> Rect

The smallest rectangle that encloses the shape.

pub fn as_line(&self) -> Option<Line>

If the shape is a line, make it available.

pub fn to_path(&self, tolerance: f64) -> BezPath

Convert to a Bézier path.

pub fn into_path(self, tolerance: f64) -> BezPath

Convert into a Bézier path.

pub fn path_segments(&self, tolerance: f64) -> Segments<Self::PathElementsIter>

Returns an iterator over this shape expressed as Bézier path segments (PathSegs).

pub fn contains(&self, pt: Point) -> bool

Returns true if the Point is inside this shape.

pub fn as_rect(&self) -> Option<Rect>

If the shape is a rectangle, make it available.

pub fn as_rounded_rect(&self) -> Option<RoundedRect>

If the shape is a rounded rectangle, make it available.

pub fn as_circle(&self) -> Option<Circle>

If the shape is a circle, make it available.

pub fn as_path_slice(&self) -> Option<&[PathEl]>

If the shape is stored as a slice of path elements, make that available.

impl StructuralPartialEq for Line

impl Sub<Vec2> for Line

type Output = Line

The resulting type after applying the - operator.

pub fn sub(self, v: Vec2) -> Line

Performs the - operation.