Struct HalfEdgeMesh 

pub struct HalfEdgeMesh {
    pub vertices: Vec<[f64; 3]>,
    pub half_edges: Vec<HalfEdge>,
    pub vertex_half_edge: Vec<usize>,
    pub face_half_edge: Vec<usize>,
    pub vertex_deleted: Vec<bool>,
    pub face_deleted: Vec<bool>,
    pub he_deleted: Vec<bool>,
}

Half-edge mesh topology.

Fields

vertices: Vec<[f64; 3]>

Vertex positions.

half_edges: Vec<HalfEdge>

Half-edge array.

vertex_half_edge: Vec<usize>

For each vertex, one outgoing half-edge index.

face_half_edge: Vec<usize>

For each face, one half-edge index.

vertex_deleted: Vec<bool>

Marks deleted vertices.

face_deleted: Vec<bool>

Marks deleted faces.

he_deleted: Vec<bool>

Marks deleted half-edges.

Implementations

impl HalfEdgeMesh

pub fn from_triangles(vertices: Vec<[f64; 3]>, triangles: &[[usize; 3]]) -> Self

Build a half-edge mesh from vertices and triangle indices.

pub fn active_vertex_count(&self) -> usize

Number of active (non-deleted) vertices.

pub fn active_face_count(&self) -> usize

Number of active faces.

pub fn is_boundary_half_edge(&self, he_idx: usize) -> bool

Check if a half-edge is on the boundary (no twin).

pub fn is_boundary_vertex(&self, v: usize) -> bool

Check if a vertex is on the boundary.

pub fn vertex_faces(&self, v: usize) -> Vec<usize>

Get all faces adjacent to a vertex.

pub fn vertex_neighbors(&self, v: usize) -> Vec<usize>

Get one-ring neighbor vertices of a vertex.

pub fn face_normal(&self, fi: usize) -> [f64; 3]

Compute the face normal for a given face index.

pub fn face_area(&self, fi: usize) -> f64

Compute the area of a face.

pub fn extract_triangles(&self) -> Vec<[usize; 3]>

Extract active triangles as index triples.

Trait Implementations

impl Clone for HalfEdgeMesh

fn clone(&self) -> HalfEdgeMesh

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HalfEdgeMesh

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

Formats the value using the given formatter.