!round_window  /modified 2/16/94***VL/
!dx=a,dy=b,resolution =h

h=c                                 !resolution VL
addy b/2
muly b/2
mulx a/2

Pen F_
cprism_ G_,H_,I_,
7,C_,
1,-1,8,
-1,-1,8,
-1,1,8,
1,1,8,
1,-1,-1,
0,0,900,
1,360,4013+64

end