Struct Motion 

pub struct Motion {
    pub longitude_deg_per_day: Option<f64>,
    pub latitude_deg_per_day: Option<f64>,
    pub distance_au_per_day: Option<f64>,
}

Apparent motion data for a position sample.

Fields

longitude_deg_per_day: Option<f64>

Longitude speed in degrees per day.

latitude_deg_per_day: Option<f64>

Latitude speed in degrees per day.

distance_au_per_day: Option<f64>

Distance speed in astronomical units per day.

Implementations

impl Motion

pub const fn new( longitude_deg_per_day: Option<f64>, latitude_deg_per_day: Option<f64>, distance_au_per_day: Option<f64>, ) -> Self

Creates a new motion sample.

pub const fn longitude_speed(self) -> Option<f64>

Returns the longitudinal motion speed when available.

pub const fn latitude_speed(self) -> Option<f64>

Returns the latitudinal motion speed when available.

pub const fn distance_speed(self) -> Option<f64>

Returns the radial motion speed when available.

pub fn summary_line(self) -> String

Returns a compact one-line summary of the motion sample.

pub fn validate(self) -> Result<(), MotionValidationError>

Validates that every populated motion component is finite.

pub fn longitude_direction(self) -> Option<MotionDirection>

Returns the coarse longitudinal motion direction when that speed is available.

The classification is sign-based: positive speed is direct, negative speed is retrograde, and an exact zero speed is stationary. Non-finite longitudinal speeds are treated as unknown until the sample is validated.

Trait Implementations

impl Clone for Motion

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 Motion

impl Debug for Motion

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Motion

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Motion

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

Formats the value using the given formatter.

impl PartialEq for Motion

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Motion

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Motion