Enum TransitionCode 

pub enum TransitionCode {
    Discontinuous,
    Continuous,
    ContSameGradient,
    ContSameGradientSameCurvature,
}

IfcTransitionCode: what holds where one segment meets the next.

The values are ordered from weakest to strongest guarantee, and each implies all the weaker ones.

Variants

Discontinuous

The segments do not even meet; the curve has a gap at this joint.

Continuous

The end point of this segment is the start point of the next.

ContSameGradient

Positions and tangent directions match.

Tangent magnitude may still jump, so a kernel must not assume the parameterisation is smooth across the joint.

ContSameGradientSameCurvature

Positions, tangent directions and curvature all match.

Implementations

impl TransitionCode

pub fn from_token(token: &str) -> Option<Self>

Parse the enumeration token.

Returns None for an unrecognised token; defaulting would claim a continuity the file never asserted.

pub fn token(self) -> &'static str

The EXPRESS token, the inverse of Self::from_token.

pub fn is_connected(&self) -> bool

Do the segments at this joint at least touch?

The question a kernel actually asks before deciding whether the chain forms one connected wire.

Trait Implementations

impl Clone for TransitionCode

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 TransitionCode

impl Debug for TransitionCode

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

Formats the value using the given formatter.

impl Eq for TransitionCode

impl PartialEq for TransitionCode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TransitionCode