Struct Direction 

pub struct Direction<'m> { /* private fields */ }

A borrowed view of an IfcDirection.

Implementations

impl<'m> Direction<'m>

pub fn new(id: EntityId, entity: &'m Entity) -> Self

Wrap an entity assumed to be an IfcDirection.

pub fn id(&self) -> EntityId

The entity id.

pub fn ratios(&self) -> GeometryResult<Vec<f64>>

The raw DirectionRatios, unnormalized and of the file’s own length.

pub fn dimension(&self) -> GeometryResult<usize>

How many ratios the direction carries: 2 or 3.

pub fn ratios_3d(&self) -> GeometryResult<[f64; 3]>

The ratios promoted to 3D with z = 0, still unnormalized.

A 2D direction’s third component is genuinely zero (it lies in the plane), unlike a 2D point’s z, so padding here is not a guess. It is still a separate call from Self::ratios so a caller that needs the dimension can ask for it.

pub fn unit(&self) -> GeometryResult<[f64; 3]>

The direction as a normalized 3D vector.

Fails with crate::GeometryError::Degenerate on a zero-length direction rather than returning NaN components, because a NaN here is found three subsystems later as missing geometry.

Trait Implementations

impl<'m> Clone for Direction<'m>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'m> Copy for Direction<'m>

impl<'m> Debug for Direction<'m>

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

Formats the value using the given formatter.