Struct ReferenceCurveEvaluator

pub struct ReferenceCurveEvaluator { /* private fields */ }

Reference curve evaluator.

up is the reference direction the oriented frame is built against. It is carried by the provider rather than passed per call so that one consumer cannot silently place two objects against different conventions on the same alignment.

Implementations

impl ReferenceCurveEvaluator

pub const ID: BackendId

Backend identity.

pub const fn new() -> ReferenceCurveEvaluator

Evaluator whose reference up is global +Z.

The right default for civil and building work, where z is up by construction.

pub fn with_up(up: DVec3) -> Option<ReferenceCurveEvaluator>

Evaluator with an explicit reference up direction.

Returns None for a non-finite or zero vector, which cannot define a roll convention.

pub const fn up(&self) -> DVec3

The reference up direction this evaluator builds frames against.

Trait Implementations

impl Backend for ReferenceCurveEvaluator

fn descriptor(&self) -> BackendDescriptor

Runtime descriptor and capability inventory.

impl Clone for ReferenceCurveEvaluator

fn clone(&self) -> ReferenceCurveEvaluator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CurveEvaluator for ReferenceCurveEvaluator

fn determinism(&self) -> Determinism

Bitwise: every path is deterministic floating-point arithmetic with no hashing, threading or iteration-order dependence.

fn distance_convention(&self, curve: &Curve3) -> DistanceConvention

Which distance this provider measures for curve.

fn point_at(&self, curve: &Curve3, at: CurveMeasure) -> Result<DVec3, GeomError>

Position at at along curve.

fn tangent_at( &self, curve: &Curve3, at: CurveMeasure, ) -> Result<DVec3, GeomError>

Unit tangent at at along curve.

fn frame_at( &self, curve: &Curve3, at: CurveMeasure, ) -> Result<Frame3, GeomError>

Oriented frame at at along curve.

impl Debug for ReferenceCurveEvaluator

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

Formats the value using the given formatter.

impl Default for ReferenceCurveEvaluator

fn default() -> ReferenceCurveEvaluator

Returns the “default value” for a type.

impl PartialEq for ReferenceCurveEvaluator

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ReferenceCurveEvaluator

impl StructuralPartialEq for ReferenceCurveEvaluator