Struct Link 

pub struct Link {
    pub edge: EdgeId,
    pub forward: bool,
    pub faces: [FaceId; 2],
}

One edge of a chain, as the chain runs along it: along the edge’s own direction, forward, or against it; with the faces on its left and right as it runs (seen from outside the solid).

Fields

edge: EdgeId

forward: bool

faces: [FaceId; 2]

Implementations

impl Link

pub fn tangent( &self, normals: [Vector3; 2], along: &Vector3, p: &Vector3, ) -> GeopResult<Vector3>

The unit tangent of the edge at p, where its faces’ normals there are normals: square to both, turned to run along the link. An error where the faces could meet tangentially.

pub fn new(model: &Model, edge: EdgeId, forward: bool) -> GeopResult<Self>

pub fn reversed(&self) -> Self

pub fn vertices(&self, model: &Model) -> GeopResult<[VertexId; 2]>

The vertex the chain enters the edge at, and the one it leaves at.

pub fn at( &self, model: &Model, fraction: Scalar, ) -> GeopResult<(Vector3, Vector3)>

The edge’s point fraction of the way along it as the chain runs — of its parameter — and the unit tangent there, the way it runs.

Trait Implementations

impl Clone for Link

fn clone(&self) -> Link

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Link

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

Formats the value using the given formatter.