face_connection_mass

iskra.directional.face_connection_mass(verts: Tensor, edges: Tensor, face_to_edge: Tensor, flaps: Tensor) → Tensor[SOURCE]

Makes the face-based connection mass matrix for an N-RoSy field via edge lengths.

Parameters:

• verts (Tensor[Float, [V, 3]]) – Mesh vertices.

• edges (Tensor[Int64, [E, 2]]) – Mesh edges.

• face_to_edge (Tensor[Int64, [F, 3]]) – Face-to-edge connections.

• flaps (Tensor[Int64, [E, 2]]) – Edge-to-face connectivity in the mesh. See edge_flaps().

Returns:

​ (SparseTensor[Complex, [E, E]]) – Mass matrix for a face-based N-RoSy field.