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/SIDE 600 def
<< /width SIDE /height SIDE >> surface context
1 1 1 rgb set-source
paint
SIDE dup scale
0.5 0.5 translate
0.5 -0.5 scale
/theta math.pi 10 div def
10 {
N
0 0 1.0 0 //theta arc
0 0 0.2 //theta 0 arc-
h
//theta rotate
//theta rotate
} repeat
0 0 0.2 0 0 1 radial
0.0 1 1 0 1 add-color-stop
1.0 0 0 1 1 add-color-stop
set-source
fill
/target get (out.png) write-to-png pop
pop
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