Struct lyon_algorithms::walk::PathWalker

pub struct PathWalker<'l> { /* private fields */ }

A helper struct to walk along a flattened path using a builder API.

Implementations

impl<'l> PathWalker<'l>

pub fn new(start: f32, pattern: &'l mut dyn Pattern) -> PathWalker<'l>

Trait Implementations

impl<'l> PathBuilder for PathWalker<'l>

fn begin(&mut self, to: Point) -> EndpointId

Starts a new sub-path at a given position.

fn line_to(&mut self, to: Point) -> EndpointId

Adds a line segment to the current sub-path.

fn end(&mut self, close: bool)

Ends the current sub path.

fn quadratic_bezier_to(&mut self, ctrl: Point, to: Point) -> EndpointId

Adds a quadratic bézier curve to the current sub-path.

fn cubic_bezier_to( &mut self, ctrl1: Point, ctrl2: Point, to: Point ) -> EndpointId

Adds a cubic bézier curve to the current sub-path.

fn close(&mut self)

Closes the current sub path.

fn reserve(&mut self, _endpoints: usize, _ctrl_points: usize)

Hints at the builder that a certain number of endpoints and control points will be added.

fn path_event( &mut self, event: Event<Point2D<f32, UnknownUnit>, Point2D<f32, UnknownUnit>> )

Applies the provided path event.

fn extend<Evts>(&mut self, events: Evts)

where Evts: IntoIterator<Item = Event<Point2D<f32, UnknownUnit>, Point2D<f32, UnknownUnit>>>,

Adds events from an iterator.

fn add_polygon(&mut self, polygon: Polygon<'_, Point2D<f32, UnknownUnit>>)

Adds a sub-path from a polygon.

fn add_point(&mut self, at: Point2D<f32, UnknownUnit>) -> EndpointId

Adds a sub-path containing a single point.

fn add_line_segment( &mut self, line: &LineSegment<f32> ) -> (EndpointId, EndpointId)

Adds a sub-path containing a single line segment.

fn add_ellipse( &mut self, center: Point2D<f32, UnknownUnit>, radii: Vector2D<f32, UnknownUnit>, x_rotation: Angle<f32>, winding: Winding )

Adds a sub-path containing an ellipse.

fn add_circle( &mut self, center: Point2D<f32, UnknownUnit>, radius: f32, winding: Winding )

where Self: Sized,

Adds a sub-path containing a circle.

fn add_rectangle(&mut self, rect: &Rect<f32, UnknownUnit>, winding: Winding)

Adds a sub-path containing a rectangle.

fn add_rounded_rectangle( &mut self, rect: &Rect<f32, UnknownUnit>, radii: &BorderRadii, winding: Winding )

where Self: Sized,

Adds a sub-path containing a rectangle.

fn flattened(self, tolerance: f32) -> Flattened<Self>

where Self: Sized,

Returns a builder that approximates all curves with sequences of line segments.

fn transformed<Transform>( self, transform: Transform ) -> Transformed<Self, Transform>

where Self: Sized, Transform: Transformation<f32>,

Returns a builder that applies the given transformation to all positions.

fn with_svg(self) -> WithSvg<Self>

where Self: Sized,

Returns a builder that support SVG commands.