trimesh_boundaries

trimesh_boundaries(M)

Compute all ordered boundary loops of a manifold triangle mesh.

Uses libigl to extract and order the boundary loops of a triangle mesh. The input mesh must be manifold for correct results.

Parameters:

Mtuple[list[list[float]], list[list[int]]]

A mesh represented by a tuple of (vertices, faces) where vertices are 3D points and faces are triangles

Returns:

list[list[int]]

The ordered boundary loops of the triangle mesh. Each loop is a sequence of vertex indices defining a closed boundary.

Notes

The input mesh should be manifold. Non-manifold meshes may produce unexpected or incorrect results.