Constrained minimum spanning trees as shape fills, the moving version of my earlier post The Name of the Node. On each frame one point is added, all the points move, and their spanning trees are drawn. Character: JIE2, “knot”.
(Be sure to view the movie in 480p.)
Note that since the segments are filled with trees, which may branch but never loop, the KOU3 (“mouth”) in the lower right quadrant is never a closed box. In every frame there is an escape path from the inside to the outside.
resembles the lightning