Struct SubMesh 

pub struct SubMesh {
    pub geometry_id: u32,
    pub mesh: Mesh,
    pub uvs: Option<Vec<f32>>,
    pub texture: Option<TextureAttachment>,
}

A sub-mesh with its source geometry item ID. Used to track which geometry items contribute to an element’s mesh, allowing per-item color/style lookup.

Fields

geometry_id: u32

The geometry item ID (e.g., IfcFacetedBrep ID) for style lookup

mesh: Mesh

The triangulated mesh data

uvs: Option<Vec<f32>>

Per-vertex texture coordinates (u, v pairs, 1:1 with mesh.positions), present only for textured face sets (#1781). Downstream index-only edits (winding orientation, degenerate-triangle drops) and rigid transforms keep them aligned; anything that rebuilds vertices must drop them.

texture: Option<TextureAttachment>

The surface texture sampled by uvs (#1781).

Implementations

impl SubMesh

pub fn new(geometry_id: u32, mesh: Mesh) -> Self

Create a new sub-mesh

pub fn textured( geometry_id: u32, mesh: Mesh, uvs: Vec<f32>, texture: TextureAttachment, ) -> Self

Create a textured sub-mesh (#1781): uvs are 1:1 with mesh.positions.

Trait Implementations

impl Clone for SubMesh

fn clone(&self) -> SubMesh

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SubMesh

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

Formats the value using the given formatter.