Re: LOGO-L> Logo Question

["John St. Clair" <jstclair@cyberg8t.com>]

Hi Jerry,

In answer to your questions about MicroWorlds:

At 1:19 PM +0000 2/20/98, Jerry Segalla wrote:
>Dear Experienced Logo Friends,
>
>1)  How do you control which turtle goes in front or behind another
>turtle?

Turtles are layered in the order of their hatching.  The first hatched is
always behind those hatched later.  Therefore, if you are going to have
many turtles on the screen, you need to be aware of their order of
hatching.  Unless you delete or change the name of a turtle, they will be
in the order of the default names: T1, T2, T3, etc.

>2)  Can  you control if a turtle goes behind a certain background colors
>and in front of other background colors?

I think turtles always go in front of the background graphics.  If you want
a turtle to go behind part of the background, make that part of the
background another turtle hatched later than the turtle you want to go
behind.  If this is unclear, let's get together next time you're down in
the valley and I'll show you. (Jerry lives only about 75 minutes away from
me.)

-John

John St. Clair		     Global SchoolNet Foundation
Technology Teacher	     moderator schl-sig-logo and logo-l
Vina Danks Middle School     http://www.cyberg8t.com/jstclair/jsc.bio.html
Ontario-Montclair School District
Ontario, California, USA


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