sn -1 0 0 1
before_global_change
before_create_vertex
after_create_vertex
before_create_vertex
after_create_vertex
before_create_edge
after_create_edge
before_add_inner_ccb
after_add_inner_ccb
after_global_change
sn 0 1 1 0
before_global_change
before_create_vertex
after_create_vertex
before_create_edge
after_create_edge
after_global_change
sn 1 0 0 -1
before_global_change
before_create_vertex
after_create_vertex
before_create_edge
after_create_edge
after_global_change
sn 0 -1 -1 0
before_global_change
before_create_edge
before_split_face
after_split_face
after_create_edge
after_global_change
p 0 0
before_global_change
before_create_vertex
after_create_vertex
before_add_isolated_vertex
after_add_isolated_vertex
after_global_change
si 0 -1 0 1
before_global_change
before_create_edge
after_create_edge
before_create_edge
before_split_face
after_split_face
after_create_edge
after_global_change
v 0
before_global_change
before_merge_edge
before_remove_vertex
after_remove_vertex
after_merge_edge
after_global_change
p 1 1
before_global_change
before_create_vertex
after_create_vertex
before_add_isolated_vertex
after_add_isolated_vertex
after_global_change
v 1
before_global_change
before_remove_vertex
after_remove_vertex
after_global_change
e 0
before_global_change
before_remove_edge
before_merge_face
after_merge_face
after_remove_edge
after_global_change
e 3
before_global_change
before_remove_edge
after_remove_edge
before_remove_vertex
after_remove_vertex
after_global_change
e 1
before_global_change
before_remove_edge
before_merge_face
after_merge_face
after_remove_edge
after_global_change
e 2
before_global_change
before_remove_edge
after_remove_edge
before_remove_vertex
after_remove_vertex
after_global_change
