Struct CartesianTransformationOperator 

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

The attributes every operator shares, from the abstract supertype.

A view in its own right so a caller holding an operator of unknown subtype can still read the origin and scale without dispatching, and so the four concrete views do not each re-derive the default chain.

Implementations

impl<'m> CartesianTransformationOperator<'m>

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

Wrap an entity assumed to be an IfcCartesianTransformationOperator subtype.

pub fn id(&self) -> EntityId

The entity id.

pub fn local_origin_ref(&self) -> GeometryResult<EntityId>

The LocalOrigin reference. Required by the schema.

pub fn local_origin(&self, model: &'m Model) -> GeometryResult<[f64; 3]>

The translation part, promoted to 3D.

pub fn scale_attribute(&self) -> Option<f64>

The raw Scale, None when the file omitted it.

Prefer Self::scale unless you specifically need to know whether the value was written, e.g. to decide what Scale2 defaults to.

pub fn scale(&self) -> GeometryResult<f64>

The effective uniform scale: the derived Scl := NVL(Scale, 1.0).

A non-positive scale is crate::GeometryError::Degenerate: the schema’s ScaleGreaterZero rule forbids it, zero collapses the mapped geometry to a point, and a negative value mirrors it while leaving the winding order inverted, which shows up much later as inside-out normals.

pub fn axis1(&self, model: &'m Model) -> GeometryResult<Option<[f64; 3]>>

The local X direction (Axis1), normalized; None when absent.

pub fn axis2(&self, model: &'m Model) -> GeometryResult<Option<[f64; 3]>>

The local Y direction (Axis2), normalized; None when absent.

Only its sign relative to Axis3 x Axis1 survives: the derived U re-orthogonalizes it, so a slightly-off Axis2 is corrected while an opposing one flips the handedness of the frame.

Trait Implementations

impl<'m> Clone for CartesianTransformationOperator<'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 CartesianTransformationOperator<'m>

impl<'m> Debug for CartesianTransformationOperator<'m>

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

Formats the value using the given formatter.