zOrthoPoint.py

from pygeo import *

v=display(scale=5, camera_vector=(0,1,-1))

zpoint=zFreePoint(1,3,color=BLUE)

zOrthoPoint(zpoint,color=RED)

#reference objects
usphere=uSphere()

upoint1=z_to_uPoint(zpoint,color=WHITE)
u=u_to_zPoint(upoint1,color=WHITE)
upoint2=uAntiPodal(upoint1,color=WHITE)

rLine(upoint1,upoint2,seg=True,color=WHITE)
rLine(usphere.N,upoint1,color=WHITE)
rLine(usphere.N,upoint2,color=WHITE)
zPlane(color=MAGENTA)
v.pickloop()