Struct RailMeasurement 

pub struct RailMeasurement { /* private fields */ }

One handrail measured along a stretch.

A rail is measured in the frame of one part of the stretch, the first unless stated (Self::in_part). start and end are the positions of its body’s nearest and farthest points along that part’s direction, left and right of its lowest and highest points across it. lowest and highest bound the height of the top of its body above the pitch line (the nosing line of a flight, the surface of a run) where both run: the least and the greatest height along it, each as an interval sure to hold it. bottom_rise and top_rise are how much the top of its body rises and falls over the requested extension beyond each end of the pitch line, None where it does not reach that far or no extension was requested.

Implementations

impl RailMeasurement

pub fn try_new( (start, end): (ElevationInterval, ElevationInterval), (left, right): (ElevationInterval, ElevationInterval), lowest: MeasuredInterval, highest: MeasuredInterval, ) -> Result<Self, WalkingSurfaceError>

A rail spanning start to end along the stretch and left to right across it, its top lowest to highest above the pitch line. Each pair must be ordered.

pub fn in_part(self, part: usize) -> Self

The rail measured in the frame of the stretch’s part part, by its index in HandrailEvidence::parts.

pub fn part(&self) -> usize

The index of the part the rail is measured in.

pub fn with_rises( self, bottom: Option<MeasuredInterval>, top: Option<MeasuredInterval>, ) -> Result<Self, WalkingSurfaceError>

The rail with the rise of its top over the extension beyond the bottom and the top of the pitch line. A rise is never negative.

pub fn start(&self) -> ElevationInterval

Position of the rail’s nearest point along the stretch.

pub fn end(&self) -> ElevationInterval

Position of the rail’s farthest point along the stretch.

pub fn sides(&self) -> (ElevationInterval, ElevationInterval)

Positions of the rail’s lowest and highest points across the stretch.

pub fn lowest(&self) -> MeasuredInterval

The least height of the rail’s top above the pitch line.

pub fn highest(&self) -> MeasuredInterval

The greatest height of the rail’s top above the pitch line.

pub fn bottom_rise(&self) -> Option<MeasuredInterval>

How much the rail’s top rises and falls over the extension beyond the bottom of the pitch line, when it reaches that far.

pub fn top_rise(&self) -> Option<MeasuredInterval>

The same beyond the top of the pitch line.

Trait Implementations

impl Clone for RailMeasurement

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RailMeasurement

impl Debug for RailMeasurement

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

Formats the value using the given formatter.

impl PartialEq for RailMeasurement

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RailMeasurement