pub fn mesh_outline_2d(
positions: &[f32],
indices: &[u32],
axis: ProjectionAxis,
flipped: bool,
) -> Result<MeshOutline, NoOutline>Expand description
Compute the winding-independent 2D footprint outline of a triangle mesh.
positions is flat XYZ (len = 3·vertexCount); indices is flat triangle
indices. Returns NoOutline when there is no outline to return, and
which of the two reasons applies.