Ron,

> Ok I'll give it a try and see.  I see that it's a 100x100 display, so 10,000
> objects.  Each object would be its own turtle, I suppose, and only the color
> needs to change, there is no movement.  I'm thinking for what I'm trying to
> show that will probably be good.

  The size is only the default value.  You can change it (err) by
modifying the class method #defaultDimensions, and of course the
turtles can overlap with each other, so you can have as many turtles
as you like in 100x100 or any size of display.

  If you create an eToys tile script that looks like:

  turtle1 turtleCount <- 10000
  Test turtle1 y < 50
  Yes  turtle1 color <- xxx
  No   turtle1 color <- yyy

you'll see that you can change the individual turtles' color.

  Oh, and don't forget to have the plugin (shared library).  In
practice, that is essential for practical performance.  With the
plugin, you should get 10-20 fps with 100,000 turtles moving on a 1GHz
or such computer.

-- Yoshiki