made a controlled drawing RePaint=true or RePaintPeriod>0
in fact, there are a lot of options here .. offhand I counted a dozen, but wrote only 3 not the most difficult ones ...
in general, I rewrote the Vertex algorithm in a normal way, and threw out all the old / buggy /inconvenient code.
versions 5.5 [most accurate] and 5.7 [fastest] load the terminal the least.

PS you will find glitches.. email me... write letters in large handwriting....

author : from tankk