def drawit2(page):
s=Edge(page.tip, S0, color.orange)
t=Edge(page.tip, C1, color=color.green)
u=Edge(page.tip, S1, color.orange)
v=Edge(page.tip, C0, color=color.magenta)
s.draw()
t.draw()
u.draw()
v.draw()
return s,t,u,v
def drawit3(P0,P1,Q0,Q1):
"""
draws the six edges of the inadvertent tetrahedron
give its four vertexes as input
"""
P0P1 = Edge(P0, P1, color=color.magenta)
Q0Q1 = Edge(Q0, Q1, color=color.green)
P1Q0 = Edge(P1, Q0, color=color.orange)
P1Q1 = Edge(P1, Q1, color=color.orange)
P0Q0 = Edge(P0, Q0, color=color.orange)
P0Q1 = Edge(P0, Q1, color=color.orange)
P0P1.draw()
Q0Q1.draw()
P1Q0.draw()
P1Q1.draw()
P0Q0.draw()
P0Q1.draw()
return P0P1, P0Q0, P0Q1, P1Q0, Q0Q1, P1Q1
