LOGO-L> Hexagonal torous in both UCBLogo & MSWLogo

[MHELHEFNY@FRCU.EUN.EG]

;Hello Every Body
;Here is the code of an isometric view of a half of the hexagonal torous 
;that will run under UCBLogo and under MSWLogo without turning 3d on.
;Best Regards
;Mhelhefny
;----------------------------------------------

to go
cs ht pu sphere1 150 sphere2 150
end

to mysetxyz :a :b :c
;lib. proc. for isometric view
setxy (:a- :c)*cos 30 :b- (:a+ :c)*sin 30
end

to sphere1 :a
for [theta 0 180 30][for [fi 135 315 5][sppos :a* sin(:theta) :fi :theta pd]pu]
end

to sphere2 :a
for [fi 135 315 5][for [theta 0 180 30][sppos :a* sin(:theta) :fi :theta pd]pu]
end

to sppos :r :fi :theta
;lib. proc. for sphirical co-ordinates
mysetxyz :r*(sin :theta)*cos :fi :r*cos :theta :r*(sin :theta)*sin :fi  
end
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