RayScan example seems erroneous

[dharabor]

Expanding the start immediately produces (event 3) an update operation on itself ? The f- and g- value after this operation remain zero??

Event 4 is an update for a successor we haven't generated yet. A correct line is then drawn, showing the path to a successor, but again, f- and g- remain zero so it looks like nothing is updated.

Event 5 is is the generate operation that's supposed to appear before Event 4. It doesn't draw anything.

Events, 3, 4, 6 share the same node id?

All the events following an expansion share the same (x, y) coordinates?

[dharabor]

@heavenfall could you please look at this one?