Struct Dispersion 

pub struct Dispersion {
    pub dry_mass_sd_fraction: f64,
    pub cg_sd_m: f64,
    pub drag_sd_fraction: f64,
    pub impulse_sd_fraction: f64,
    pub burn_time_sd_fraction: f64,
    pub ejection_delay_sd_s: f64,
    pub wind_speed_sd_fraction: f64,
    pub wind_heading_sd_rad: f64,
    pub rail_elevation_sd_rad: f64,
    pub rail_azimuth_sd_rad: f64,
    pub deployment_lag_sd_s: f64,
}

The standard deviation of each dispersed input; zero, the default, leaves an input at its nominal value. The module’s docs say what each does to a flight.

Fields

dry_mass_sd_fraction: f64

Each stage’s mass without motors, as a fraction of it (0.02 is 2%).

cg_sd_m: f64

Each stage’s center of mass along the axis, m.

drag_sd_fraction: f64

The rocket’s zero-lift drag coefficient, as a fraction of it.

impulse_sd_fraction: f64

Each motor’s total impulse, as a fraction of it, its propellant mass with it.

burn_time_sd_fraction: f64

Each motor’s burn time, as a fraction of it, at the same impulse.

ejection_delay_sd_s: f64

Each motor’s ejection delay, s.

wind_speed_sd_fraction: f64

The wind’s speed at every height, as a fraction of it.

wind_heading_sd_rad: f64

The wind’s direction, rad, about the nominal one.

rail_elevation_sd_rad: f64

The rail’s angle above the horizon, rad.

rail_azimuth_sd_rad: f64

The rail’s heading, rad.

deployment_lag_sd_s: f64

Each recovery device’s lag after its trigger, s.

Implementations

impl Dispersion

pub fn validate(&self) -> Result<(), AnalysisError>

Checks that every standard deviation is finite and not negative.

Errors

AnalysisError::Domain naming the first that isn’t.

Trait Implementations

impl Clone for Dispersion

fn clone(&self) -> Dispersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Dispersion

impl Debug for Dispersion

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

Formats the value using the given formatter.

impl Default for Dispersion

fn default() -> Dispersion

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Dispersion

where Dispersion: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Dispersion

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Dispersion

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 Dispersion