Enum ContainmentLane 

pub enum ContainmentLane {
    SeamBand,
    SphereCap,
    WrappedHorizon {
        loops: Vec<Vec<Vec2>>,
        u_period: f64,
        cross_frame: bool,
    },
    CoveringRimStrip,
    Generic {
        sphere_chart: bool,
    },
}

The lane containment_lane finds a face in.

Variants

SeamBand

The doubly-periodic seam-band lane: answers every point of the face.

SphereCap

The winding sphere-cap lane: answers every point within the query’s tolerance of a chord of the rim or whose u meets one; any other point goes on to the lanes after it.

WrappedHorizon

The wrapped-horizon lane: answers every point. Within the query’s tolerance of a chord of loops at u − u_period, u or u + u_period it is Boundary; otherwise, with cross_frame, each loop’s even-odd count (crossings of +u, half-open in v) at the three images summed mod 2, odd being Inside; without it (HORIZON_CROSS_FRAME_SWITCH = "0" when this was called), Inside when some image counts an odd total.

Fields

loops: Vec<Vec<Vec2>>

Each loop’s samples, unwrapped sample to sample across the seam: the lane’s own polygons, closed from last sample to first.

u_period: f64

cross_frame: bool

CoveringRimStrip

The covering-rim-strip lane: answers every point.

Generic

The generic scan: Boundary within the tolerance of a chord; otherwise the side of the nearest pcurve where the nearest chord’s foot lands inside it and the point is no farther from that chord than the chord is long; otherwise the even-odd count over every loop — for which, with sphere_chart, the sphere-chart lane substitutes where it can decide.

Fields

sphere_chart: bool

An analytic sphere with the sphere-chart trim lane on (NO_SPHERE_CHART_TRIM_SWITCH), read when this was called.

Trait Implementations

impl Clone for ContainmentLane

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 ContainmentLane

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

Formats the value using the given formatter.