split_edge Creates Non-Triangular Faces on TriMeshes
PolyConnectivity implements the two methods
split_edge(EdgeHandle, VertexHandle) and
split_edge_copy(EdgeHandle, VertexHandle) which split an edge without splitting the incident faces, thus increasing the valence of the incident faces by one.
TriConnectivity implements the two similar methods
split(EdgeHandle, VertexHandle) and
split_copy(EdgeHandle, VertexHandle) which do split the incident faces, thus performing a 2 to 4 split (or 1 to 2 split on boundaries) as expected.
TriConnectivity publicly inherits from
split_edge can be called on a
TriConnectivity resulting in non-triangular faces.
Should we add
split_edge_copy methods to
TriConnectivity which call
split_edge to prevent this?