Struct PathJoint 

pub struct PathJoint {
    pub before: usize,
    pub after: usize,
    pub tangent_break: f64,
    pub curvature_break: f64,
    pub continuity: JointContinuity,
    pub closing: bool,
}

ONE joint of a resolved path: which two segments meet there, how continuously (JointContinuity), and the two measurements that decided it.

before/after are INDICES into the path’s segments, and the CLOSING joint of a closed path is (n-1, 0) — including the single-segment case (0, 0), a lone closed curve meeting itself.

Fields

before: usize

The segment ARRIVING at the joint (at its own domain end).

after: usize

The segment DEPARTING from it (at its own domain start).

tangent_break: f64

The angle between the arriving and departing UNIT TANGENTS, in radians. The measured angle a corner refusal quotes.

curvature_break: f64

|Δk| of the CURVATURE VECTOR across the joint, in 1/length. A vector rather than a magnitude, so two equal arcs curving opposite ways (an S-bend) read 2/r rather than zero.

continuity: JointContinuity

The level those two measurements put the joint at.

closing: bool

True for the joint that CLOSES a closed path (the last segment’s end meeting the first segment’s start). An open path has none.

Trait Implementations

impl Clone for PathJoint

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PathJoint

impl Debug for PathJoint

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

Formats the value using the given formatter.