Struct Environment 

pub struct Environment {
    pub earth: Earth,
    pub geoid_undulation_m: f64,
    pub atmosphere: Arc<dyn Atmosphere>,
    pub wind: Arc<dyn Wind>,
}

The Earth, atmosphere and wind a flight sees.

Heights: the state and the Earth model use the launch frame and ellipsoidal heights. The atmosphere and wind take height above mean sea level, H = h − N, with the geoid undulation N at the site given here (hpr has no geoid model; docs/physics/geodesy.md). The ground is the ellipsoidal height of the site. Wind vectors are taken in the launch frame’s axes.

Fields

earth: Earth

The Earth: the launch site and frame, gravity and rotation.

geoid_undulation_m: f64

The geoid undulation N at the site, m (h = H + N).

atmosphere: Arc<dyn Atmosphere>

The atmosphere, by height above mean sea level. Shared, so environments clone cheaply across threads.

wind: Arc<dyn Wind>

The wind, by height above mean sea level, in launch-frame axes.

Implementations

impl Environment

pub fn new( earth: Earth, atmosphere: impl Atmosphere + 'static, wind: impl Wind + 'static, ) -> Self

An environment from its parts, with N = 0.

pub fn standard(site: Geodetic) -> Result<Self, SimError>

WGS 84 at site (ellipsoidal height), the 1976 standard atmosphere and no wind.

Errors

SimError::Core for an invalid site.

pub fn with_geoid_undulation_m(self, undulation_m: f64) -> Self

The same environment with geoid undulation N, m.

pub fn with_wind(self, wind: impl Wind + 'static) -> Self

The same environment with wind in place of its wind.

pub fn site(&self) -> Geodetic

The launch site.

Trait Implementations

impl Clone for Environment

fn clone(&self) -> Environment

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Environment

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

Formats the value using the given formatter.