public void DeleteFace(Face face)
{
RemoveFace(face);
List<Edge> deleteEdgeList = new List<Edge>(face.EdgeList);
DeleteFreeEdges(deleteEdgeList);
}
private void RemoveFace(Face face)
{
if (faceList.Remove(face))
{
}
}
public void AddFace(Face face)
{
if (!faceList.Contains(face))
faceList.Add(face);
}