Struct Stationing 

#[non_exhaustive]
pub struct Stationing {
    pub alignment: EntityId,
    /* private fields */
}

The stationing of one IfcAlignment: its station equations in distance order, and lookups across them.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

alignment: EntityId

The IfcAlignment this stationing belongs to.

Implementations

impl Stationing

pub fn resolve( model: &Model, alignment: EntityId, units: AlignmentUnits, ) -> AlignmentResult<Self>

Resolve the stationing of alignment from the referents it nests or positions.

Referents without Pset_Stationing (a bridge pier marker, say) are not part of the stationing and are skipped. An alignment with no stationing referent resolves to an empty table, whose lookups are refused.

Errors

Refuses a model that is not IFC4X3, an alignment that is not an IfcAlignment, a malformed relationship or referent, two stationing referents at one distance, a non-finite station, and a station that contradicts the one carried from the previous referent.

pub fn equations(&self) -> &[StationEquation]

The stationing referents, ascending in distance along.

pub fn station_at(&self, distance_along: f64) -> AlignmentResult<f64>

The station at distance_along (metres along the alignment).

At an equation the station ahead of it applies.

Errors

AlignmentError::OutOfRange for a non-finite distance, an empty table, or a distance before the first stationing referent.

pub fn distances_at(&self, station: f64) -> AlignmentResult<Vec<f64>>

Every distance along labelled station, ascending.

Usually one. Several when an equation steps the station back, so that the same value occurs in two ranges.

Errors

AlignmentError::OutOfRange for a non-finite station and a station no range reaches.

pub fn distance_at(&self, station: f64) -> AlignmentResult<f64>

The one distance along labelled station.

Errors

As Self::distances_at, and AlignmentError::AmbiguousStation when the station labels several distances.

Trait Implementations

impl Clone for Stationing

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stationing

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

Formats the value using the given formatter.

impl PartialEq for Stationing

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Stationing