Enum HalfedgeBuildError 

#[non_exhaustive]
pub enum HalfedgeBuildError {
    IncompleteTriangle {
        index_count: usize,
    },
    FaceTooSmall {
        face: usize,
        corners: usize,
    },
    IndexOutOfRange {
        face: usize,
        index: u32,
        position_count: usize,
    },
    DegenerateFace {
        face: usize,
        vertex: u32,
    },
    NonManifoldEdge {
        a: u32,
        b: u32,
        faces: usize,
    },
    InconsistentOrientation {
        from: u32,
        to: u32,
    },
    NonManifoldVertex {
        vertex: u32,
    },
    TooLarge,
}

Why a face list cannot become a HalfedgeMesh.

Each refusal names the configuration and the elements involved, so a caller can repair or report the input instead of guessing.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

IncompleteTriangle

The triangle index buffer is not divisible by three.

Fields

index_count: usize

Indices found.

FaceTooSmall

A face has fewer than three corners.

Fields

face: usize

The face.

corners: usize

Corners found.

IndexOutOfRange

A corner names a position that does not exist.

Fields

face: usize

The face.

index: u32

The offending index.

position_count: usize

Positions available.

DegenerateFace

A face visits the same vertex twice.

Fields

face: usize

The face.

vertex: u32

The repeated vertex.

NonManifoldEdge

More than two faces share an edge.

Fields

a: u32

Lower endpoint.

b: u32

Higher endpoint.

faces: usize

Faces using the edge.

InconsistentOrientation

Two faces traverse a shared edge in the same direction: their windings disagree (or the same face appears twice).

Fields

from: u32

Source of the doubly-used direction.

to: u32

Target of the doubly-used direction.

NonManifoldVertex

The faces around a vertex form more than one fan: two cones touching at a point, or a boundary vertex where two holes meet.

Fields

vertex: u32

The vertex.

TooLarge

The mesh needs more elements than 32-bit ids can address.

Trait Implementations

impl Clone for HalfedgeBuildError

fn clone(&self) -> HalfedgeBuildError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HalfedgeBuildError

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

Formats the value using the given formatter.

impl Display for HalfedgeBuildError

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

Formats the value using the given formatter.

impl Eq for HalfedgeBuildError

impl Error for HalfedgeBuildError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for HalfedgeBuildError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HalfedgeBuildError