Struct Adjacency 

pub struct Adjacency { /* private fields */ }

Corner table of a Mesh: for every triangle corner, the corner across the opposite edge, plus one corner per vertex and a non-manifold flag per vertex.

Built by Mesh::ensure_adjacency and cached until the next topology change. See the module docs for the corner numbering.

Implementations

impl Adjacency

pub fn opposite(&self, corner: u32) -> Option<u32>

The corner across the edge opposite corner, if that edge is interior.

pub fn edge_kind(&self, corner: u32) -> EdgeKind

Kind of the edge opposite corner. Corners of dead triangles read as boundary.

pub fn vertex_corner(&self, v: VertexId) -> Option<u32>

One corner at vertex v, or None if no triangle uses it.

pub fn is_non_manifold_vertex(&self, v: VertexId) -> bool

True when the triangles around v do not form a single fan: two surfaces meet only at v (a “bowtie”), or an edge at v is non-manifold.

pub fn triangles_around(&self, mesh: &Mesh, v: VertexId) -> Vec<TriangleId>

Triangles in the fan of v reached from Adjacency::vertex_corner through interior edges. For a non-manifold vertex this is one fan, not every triangle.

Trait Implementations

impl Debug for Adjacency

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

Formats the value using the given formatter.