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 Subject: Archimedes Spiral "hat" demo (graphics 8
Author: Jon Bailey (
Date:   07-03-2008 23:04

I've skimmed the 'net every few years for this one to no avail, I figure it may strike a chord with someone. :-)

There was a VERY short (but dense) Atari Basic demo that took hours to run. When it completed, it would show, drawn in graphics mode 8+16, from a three-quarters perspective, a 3D surface, with hidden lines
removed. The final image looked rather like a hat.

I seem to remember it being referred to as "Archimedes Spiral" in the demo.

I recall the article with the program listing had some suggested modifications (disabling hidden line removal made the program run faster) -- I remember the bracketed editor's quote "[It still looks
like a hat to me --Ed.]".

I grew up in Michigan, this could conceivably have been from the M.A.C.E. Journal newsletter...

Allen MacroWare's "Printwiz" used the image as their title screen ( )

Anyone recall this one?

-Jon Bailey
Boulder CO
Atari 400, 800, 800XL - 1983-1988
Atari 520STfmd - 1990 - 1992

 Topics Author  Date
  Archimedes Spiral "hat" demo (graphics 8  Jon Bailey 07-03-2008 23:04 
   RE: Archimedes Spiral "hat" demo (graphi new Tobias 08-05-2008 12:02 
   RE: Archimedes Spiral "hat" demo (graphi new Lyverbe 08-06-2008 03:28 
   RE: Archimedes Spiral "hat" demo (graphi new Xetwnk 11-05-2008 17:41 
    RE: Archimedes Spiral "hat" demo (graphi new Jon Bailey 11-14-2008 20:20 

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