Struct Offset 

pub struct Offset<P, S> { /* private fields */ }

A path displaced by a constant distance from the original.

Every sampled point is shifted by distance units. The offset direction is derived from the path’s heading; in 2D this produces a parallel curve.

Note: The current implementation offsets along the tangent direction as a placeholder. A proper 2D-specific implementation should offset along the surface normal (heading + π/2).

Implementations

impl<P, S> Offset<P, S>

pub fn new(inner: P, distance: S) -> Self

Create a new offset path.

The distance is in the same units as the path’s scalar type.

Trait Implementations

impl<P: Path + Tangent + Heading> Path for Offset<P, P::Scalar>

type Scalar = <P as Path>::Scalar

The scalar type for arc-length, parameter, and distance computations.

type Point = <P as Path>::Point

The point type representing positions on the path.

type Error = <P as Path>::Error

The error type for fallible operations. Must be convertible from PathError<Self::Scalar>.

fn length(&self) -> Self::Scalar

Total arc-length of the path.

fn sample_at(&self, s: Self::Scalar) -> Result<Self::Point, Self::Error>

Sample the path at arc-length s ∈ [0, length].

fn start(&self) -> Result<Self::Point, Self::Error>

The start point of the path, equivalent to sample_at(0).

fn end(&self) -> Result<Self::Point, Self::Error>

The end point of the path, equivalent to sample_at(length).

fn domain(&self) -> RangeInclusive<Self::Scalar>

The valid domain for arc-length sampling: [0, length].