zCirclingPoint.py

from pygeo import *

v=display(scale=7)

zp1=zPoint(1,3,color=WHITE)
zp2=zFreePoint(-1,-2,color=WHITE)

zp3=zPoint(-3,0,color=WHITE)

zcircle=zCircle(zp1,zp2,zp3,color=BLUE)
zCirclingPoint(zcircle,color=RED,pointsize=.15)

v.animate(povout=False)