Struct Guide 

pub struct Guide { /* private fields */ }

A guide curve flattened to a polyline with cumulative arc lengths.

Implementations

impl Guide

pub fn from_path(path: &BezPath, closed: bool) -> Guide

A guide through path (any curves), flattened.

pub fn length(&self) -> f64

Total arc length.

pub fn is_closed(&self) -> bool

Whether the guide is a closed loop (positions past its end wrap around).

pub fn at(&self, s: f64) -> (Point, Vec2)

Point and unit tangent at arc length s. Open guides continue along their end tangents past either end; closed guides wrap.

pub fn offset(&self, d: f64) -> Guide

The parallel curve d points away on the left of the direction of travel (above a guide running left to right).

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

The point at fraction t of the length.

Trait Implementations

impl Clone for Guide

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Guide

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

Formats the value using the given formatter.

impl Default for Guide

fn default() -> Self

Returns the “default value” for a type.