[PD] pd/gem dumb polygon question

[CICCOLIX]

Hi,
for my scolarsheep i would to make in Gem a animate european flag.
I'm starting from the stars.

Using polygon object seem something whose wrong, it appear nice in line 
mode but bad in fill mode.
I am the suspect  that this depends on my poor knowledge of the 
foundations of geometry :)

Please help

here's attached the patch and online find the images of result
many thanks
-- 
Lazzaro

http://www.eyax.com/line.jpg
http://www.eyax.com/fill.jpg
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