Struct FootCycleMetrics 

#[non_exhaustive]
pub struct FootCycleMetrics {
    pub loop_seam_ratio: Option<f64>,
    pub has_real_stride: bool,
    pub gait_phase: Option<f64>,
    pub lr_amplitude_m: f64,
}

Foot-cycle metrics for one sampled clip.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

loop_seam_ratio: Option<f64>

Wrap discontinuity of the feet (relative to hips) over the max of the two seam-adjacent in-clip steps. ≈1.0 for a clean cyclic loop; well above 1 for a seam pop. None when the clip has no real stride (see Self::has_real_stride), or when a real stride exists but seam / neighbour_step is not finite. The whole-clip position finiteness gate above only bounds individual coordinates, not the f32 squared-length arithmetic used to turn two positions into a distance; a per-axis delta near f32::MAX overflows that squaring to infinity even though every input position was finite. That is the only known route to this case — it requires magnitudes far outside any real animation.

has_real_stride: bool

Whether the seam-adjacent neighbour step met the configured minimum stride threshold, i.e. whether the clip has a real stride to normalize the seam against. false means Self::loop_seam_ratio’s absence is an expected “no subject” (a planted/idle clip), not a derivation failure.

gait_phase: Option<f64>

Cycle position [0,1) of the trough of the fundamental harmonic of the left-minus-right foot-height signal — a stride-phase anchor encoding handedness + cycle alignment. None when a side is missing, the sampled signal has exact zero peak-to-peak swing, or the harmonic fit fails.

lr_amplitude_m: f64

Peak-to-peak swing of the L−R foot-height signal (metres); near zero means no detectable alternation and the phase is noise.

Trait Implementations

impl Clone for FootCycleMetrics

fn clone(&self) -> FootCycleMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FootCycleMetrics

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

Formats the value using the given formatter.

impl PartialEq for FootCycleMetrics

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FootCycleMetrics