Struct Overrides 

pub struct Overrides {
    pub mass_kg: Option<f64>,
    pub cg_aft_m: Option<f64>,
    pub cg_xy_m: Option<[f64; 2]>,
    pub inertia: Option<InertiaOverride>,
}

Values that replace the mass properties computed from geometry. Each applies in turn:

1. Mass m′: the body is rescaled, I′ = I m′/m, keeping its center and shape. A body with no mass becomes a point mass at its center, but for a packed part in a layout (a mass component, parachute, streamer or shock cord), which takes m′ as a solid cylinder of its packing, as OpenRocket 24.12 does (ADR-063).
2. Center of mass: the center moves along the axis to cg_aft_m aft of the component’s forward end (a stage’s, for a stage), with or without its children, and off the axis to cg_xy_m when given (otherwise it keeps its offset); the tensor about the center is unchanged.
3. Inertia: the tensor about the (new) center is replaced.

Fields

mass_kg: Option<f64>

Mass, kg.

cg_aft_m: Option<f64>

Center of mass, m aft of the forward end of the component (or the stage).

cg_xy_m: Option<[f64; 2]>

Center of mass off the axis, [x, y] in body axes, m. For a part inside a cluster’s tube or a pod, it is measured in that one copy as written (a pod on the body’s axis), and the copies carry it to each place.

inertia: Option<InertiaOverride>

Inertia tensor about the center of mass. For a part inside a cluster’s tube or a pod, it is in that one copy’s axes as written, and turns with each pod.

Implementations

impl Overrides

pub fn sets_center(&self) -> bool

Whether the center of mass is overridden, along the axis or off it.

pub fn sets_axial_center(&self) -> bool

Whether the center of mass is moved along the axis (cg_aft_m).

pub fn is_empty(&self) -> bool

Whether nothing is overridden.

pub fn apply( &self, mass: MassProperties, fore_station_m: f64, ) -> Result<MassProperties, DesignError>

Applies the overrides to mass, measuring a center-of-mass override from station fore_station_m.

Errors

DesignError::Domain for a negative or non-finite mass or a non-finite center, and DesignError::UnphysicalInertia when the result is not a real body (MassProperties::validate).

Trait Implementations

impl Clone for Overrides

fn clone(&self) -> Overrides

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Overrides

impl Debug for Overrides

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

Formats the value using the given formatter.

impl Default for Overrides

fn default() -> Overrides

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Overrides

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for Overrides

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for Overrides

fn eq(&self, other: &Overrides) -> 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 Overrides

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 Overrides