> I'd like to implement Langston's Ant in Ruby. To do this I need to
> display the path of the ant on the screen. Basically this consists of
> setting the color of a (large) pixel to one of a couple of colors.
> 
> What's an easy way in Ruby to draw some pixels on the screen or in a
> window.
> 
> Hint: No "easy way" could possibly include the sequence of characters
> "tcl".

You might use Tk->Canvas
Wolfgang.
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