Struct rasterize::Line

pub struct Line(pub [Point; 2]);

Line segment curve

Tuple Fields

0: [Point; 2]

Implementations

impl Line

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

pub fn length(&self) -> Scalar

Length of the line

pub fn points(&self) -> [Point; 2]

Start and end points of the line

pub fn ends(&self) -> (Line, Line)

pub fn intersect(&self, other: Line) -> Option<(Scalar, Scalar)>

Find intersection of two lines

Returns pair of t parameters for this line and the other line. Found by solving self.at(t0) == other.at(t1). Actual intersection of line segments can be found by making sure that 0.0 <= t0 <= 1.0 && 0.0 <= t1 <= 1.0

pub fn intersect_point(&self, other: Line) -> Option<Point>

Find intersection point between two line segments

pub fn direction(&self) -> Point

Direction vector associated with the line segment

Trait Implementations

impl Clone for Line

fn clone(&self) -> Line

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Curve for Line

fn flatness(&self) -> Scalar

Correspond to maximum deviation of the curve from the straight line f = max |curve(t) - line(curve_start, curve_end)(t)|. This function actually returns 16.0 * f^2 to avoid unneeded division and square root.

fn transform(&self, tr: Transform) -> Self

Apply affine transformation to the curve

fn start(&self) -> Point

Point at which curve starts

fn end(&self) -> Point

Point at which curve ends

fn at(&self, t: Scalar) -> Point

Evaluate curve at parameter value t in (0.0..=1.0)

fn deriv(&self) -> Segment

Derivative with respect to t, deriv(t) = [curve'(t)_x, curve'(t)_y]

fn split_at(&self, t: Scalar) -> (Self, Self)

Split the curve at parameter value t

fn cut(&self, a: Scalar, b: Scalar) -> Self

Create sub-curve specified starting at parameter value a and ending at value b

fn bbox(&self, init: Option<BBox>) -> BBox

Extend provided init bounding box with the bounding box of the curve

fn offset(&self, dist: Scalar, out: &mut impl Extend<Segment>)

Offset the curve by distance dist, result is inserted into out container

fn reverse(&self) -> Self

Identical curve but directed from end to start, instead of start to end.

fn roots(&self) -> CurveRoots

Find roots of the equation curve(t)_y = 0. Values of the parameter at which curve crosses y axis.

fn extremities(&self) -> CurveExtremities

Find all extremities of the curve curve'(t)_x = 0 || curve'(t)_y = 0

fn length(&self, t0: Scalar, t1: Scalar) -> Scalar

Calculate length of the curve from t0 to t1

fn flatten(&self, tr: Transform, flatness: Scalar) -> CurveFlattenIter

Convert curve to an iterator over line segments with desired flatness

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

Optimized version of Curve::split_at(0.5)

fn param_at_length(&self, l: Scalar, error: Option<Scalar>) -> Scalar

Find value of parameter t given desired l length of the segment

impl Debug for Line

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

Formats the value using the given formatter.

impl Display for Line

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

Formats the value using the given formatter.

impl From<Line> for Segment

fn from(line: Line) -> Self

Converts to this type from the input type.

impl FromStr for Line

type Err = SvgParserError

The associated error which can be returned from parsing.

fn from_str(text: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Line

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

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

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

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

impl Copy for Line

impl StructuralPartialEq for Line