Struct TargetTrack 

pub struct TargetTrack { /* private fields */ }

Target track held by the traffic picture.

Aggregate of recent fixes, last reported motion and status. Mutated only by Traffic.

Implementations

impl TargetTrack

pub const fn target(&self) -> TargetId

Target.

pub const fn status(&self) -> TrackStatus

Whether acquired.

pub const fn fix_count(&self) -> usize

Number of fixes, up to MAX_TRACK_HISTORY.

pub fn last_seen(&self) -> Instant<Utc>

Time of the last sighting.

pub fn last_position(&self) -> Position

Last observed position, unsmoothed.

pub fn first_seen(&self) -> Instant<Utc>

Time of the earliest fix in the window.

pub const fn reported_ground_track(&self) -> Option<GroundTrack>

Last course and speed reported by the target, if any.

pub const fn heading(&self) -> Option<TrueCourse>

Last heading reported by the target, if any.

pub fn age(&self, now: Instant<Utc>) -> Duration

Time since the last sighting; zero if now is earlier.

pub fn motion(&self) -> Option<GroundTrack>

Course and speed over ground: as reported, otherwise fitted from the fixes.

None for a single fix without a report.

pub fn fitted_motion(&self) -> Option<GroundTrack>

Course and speed fitted to the fixes, ignoring reports (the radar plot).

Least-squares line of position against time, robust to a single noisy plot. None with fewer than two fixes or no movement.

pub fn position_at(&self, when: Instant<Utc>) -> Result<Position>

Extrapolated position at when: the smoothed position at the last fix, propagated by TargetTrack::motion forwards or backwards. Without motion, the last position.

Errors

As rhumb_destination: extrapolation across a pole.

pub fn as_vessel(&self) -> Option<Vessel>

Target as a vessel for relative-motion calculations, if it has motion.

Trait Implementations

impl Clone for TargetTrack

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 TargetTrack

impl Debug for TargetTrack

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

Formats the value using the given formatter.

impl PartialEq for TargetTrack

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TargetTrack