Re: LOGO-L> Visual Arts URL

[George Mills <mills@softronix.com>]

KERRB@Magill.UniSA.edu.au wrote:
> 
> John St. Clair wrote:-
> 
> >I just visited your web page and I like the idea of doing tessellations
> >with MicroWorlds.  Now I have a new project idea for my students.  Thanks
> >for sharing your ideas.
> 
> I still  maintain that its best to do tessellations using pencil, paper,
> cardboard, tracing paper etc.
> 
> Why?
> Because there is no easy way, for instance, in Logo to do this:-
> 
> 1. draw an irregular quadrilateral
> 2. measure the midpoints of each side
> 3. draw a curved line between the vertex and midpoint
> 4. rotate that curve to the vertex at the other end of the line
> 
> etc.
> 
> By using the computer you restrict the range of tessellations that students can
> do. Last time I looked MicroWorlds could handle the translations but not the
> rotations.
> 
> Shouldn't we use the best medium available for a given task?
> 
> Dale Seymour Publications have some brilliant books on tessellations (including
> one called 'Tessellations using logo' which I don't use). Sorry, can't remember
> the title of the one I do use.
> 
> btw, Escher didn't use a computer !
> 

You can do this quite nicely with ARC, ELLIPSE, and ELLIPSEARC
and using SETXY and POS. Now if you want to do irregular curves
then things get a bit complicated.

> -- Bill Kerr
> 
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-- 
===============================================================
George Mills (mills@softronix.com)
http://www.softronix.com/
The www page contains some very powerful educational software.
Our single most important investment is our kids.
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