Enum JointContinuity 

pub enum JointContinuity {
    G0,
    G1,
    G2,
}

How continuous a path is AT ONE JOINT — the classification every sweep refusal reads instead of re-deriving the same angle from the curves.

The three levels are the standard geometric ones, and each is decided by a measurement PathJoint carries beside it:

• G0 — the position matches and nothing else: the tangent turns by more than MAX_JOINT_TANGENT_BREAK. A corner.
• G1 — the unit tangents agree; the curvature VECTORS do not. A line meeting a fillet arc, two arcs of different radius, an S-bend of two equal arcs curving opposite ways.
• G2 — the unit tangents AND the curvature vectors agree. Two arcs of ONE circle (the shape a sketch publishes for a circle), two collinear lines.

G1 and G2 are not distinguished by any refusal today — the skinning builder needs G1 and is indifferent to the curvature jump, because it interpolates the stations rather than the segments. The distinction is recorded because it is the difference between a path whose swept surface is curvature-continuous and one whose is not, which is what a later curvature-driven station law (remaining work item 2) has to refine against.

Variants

G0

Position only — a corner.

G1

Tangent continuous, curvature discontinuous.

G2

Tangent and curvature continuous.

Implementations

impl JointContinuity

pub fn label(self) -> &'static str

The G0 / G1 / G2 spelling, for a message or a record.

Trait Implementations

impl Clone for JointContinuity

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 JointContinuity

impl Debug for JointContinuity

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

Formats the value using the given formatter.

impl Eq for JointContinuity

impl PartialEq for JointContinuity

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for JointContinuity