Enum BoundaryIndex 

pub enum BoundaryIndex {
    Outer,
    Hole(usize),
}

Which of a face’s boundaries: its one outer loop, or the n-th hole.

A face’s boundaries are not interchangeable — the outer loop bounds the material and every hole removes from it — so code that locates a boundary says which kind it found rather than returning a bare index into one flat list. That distinction is exactly what splice_edge_into_face needs to decide whether joining two loops merges two holes, absorbs a hole into the outer loop, or splits the face in two.

Variants

Outer

Hole(usize)

Trait Implementations

impl Clone for BoundaryIndex

fn clone(&self) -> BoundaryIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BoundaryIndex

impl Debug for BoundaryIndex

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

Formats the value using the given formatter.

impl Eq for BoundaryIndex

impl PartialEq for BoundaryIndex

fn eq(&self, other: &BoundaryIndex) -> 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 StructuralPartialEq for BoundaryIndex