Struct Arc 

pub struct Arc {
    pub center: Point,
    pub radii: Vec2,
    pub start_angle: f64,
    pub sweep_angle: f64,
    pub x_rotation: f64,
}

A single elliptical arc segment.

Fields

center: Point

The arc’s centre point.

radii: Vec2

The arc’s radii, where the vector’s x-component is the radius in the positive x direction after applying x_rotation.

start_angle: f64

The start angle in radians.

sweep_angle: f64

The angle between the start and end of the arc, in radians.

x_rotation: f64

How much the arc is rotated, in radians.

Implementations

impl Arc

pub fn new( center: impl Into<Point>, radii: impl Into<Vec2>, start_angle: f64, sweep_angle: f64, x_rotation: f64, ) -> Arc

Create a new Arc.

pub fn reversed(&self) -> Arc

Returns a copy of this Arc in the opposite direction.

The new Arc will sweep towards the original Arcs start angle.

pub fn append_iter(&self, tolerance: f64) -> ArcAppendIter

Create an iterator generating Bezier path elements.

The generated elements can be appended to an existing bezier path.

pub fn to_cubic_beziers<P>(self, tolerance: f64, p: P)

where P: FnMut(Point, Point, Point),

Converts an Arc into a series of cubic bezier segments.

The closure p will be invoked with the control points for each segment.

impl Arc

pub fn from_svg_arc(arc: &SvgArc) -> Option<Arc>

Creates an Arc from a SvgArc.

Returns None if arc is actually a straight line.

Trait Implementations

impl Clone for Arc

fn clone(&self) -> Arc

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Arc

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

Formats the value using the given formatter.

impl Mul<Arc> for Affine

type Output = Arc

The resulting type after applying the * operator.

fn mul(self, arc: Arc) -> <Affine as Mul<Arc>>::Output

Performs the * operation.

impl ParamCurve for Arc

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

Evaluate the curve at parameter t.

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

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

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

Subdivide into (roughly) halves.

fn start(&self) -> Point

The start point.

fn end(&self) -> Point

The end point.

impl PartialEq for Arc

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Shape for Arc

fn area(&self) -> f64

Note: shape isn’t closed so area is not well defined.

fn perimeter(&self, accuracy: f64) -> f64

The perimeter of the arc.

For now we just approximate by using the bezier curve representation.

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

Note: shape isn’t closed, so a point’s winding number is not well defined.

type PathElementsIter<'iter> = Chain<Once<PathEl>, ArcAppendIter>

The iterator returned by the path_elements method.

fn path_elements(&self, tolerance: f64) -> <Arc as Shape>::PathElementsIter<'_>

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

fn bounding_box(&self) -> Rect

The smallest rectangle that encloses the shape.

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

Convert to a Bézier path.

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

where Self: Sized,

Convert into a Bézier path.

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

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

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

Returns true if the Point is inside this shape.

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

If the shape is a line, make it available.

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

If the shape is a rectangle, make it available.

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

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

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

If the shape is a circle, make it available.

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

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

impl Copy for Arc

impl StructuralPartialEq for Arc