check_structure(self)
Checks that the following properties are fulfilled:
Edges go in both directions (because the edge attributes differ).
Every edge has a 'cw' and 'ccw' attribute which corresponds to a correct planar embedding.
A node with a degree larger than 0 has a node attribute 'first_nbr'.
Running this method verifies that the underlying Graph must be planar.
This exception is raised with a short explanation if the PlanarEmbedding is invalid.
Runs without exceptions if this object is valid.
Hover to see nodes names; edges to Self not shown, Caped at 50 nodes.
Using a canvas is more power efficient and can get hundred of nodes ; but does not allow hyperlinks; , arrows or text (beyond on hover)
SVG is more flexible but power hungry; and does not scale well to 50 + nodes.
All aboves nodes referred to, (or are referred from) current nodes; Edges from Self to other have been omitted (or all nodes would be connected to the central node "self" which is not useful). Nodes are colored by the library they belong to, and scaled with the number of references pointing them