Here is a link to i think what Ivan is talking about, but you have to  
pay, and it is not the code, only a paper.
http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel4/5257/14250/00654734.pdf 
?arnumber=654734

I could not find the code, but I didn't look very hard.
--
David Zmick

On Jan 24, 2009, at 7:08 PM, ivan.tomek at acadiau.ca wrote:

> Some 10 or 15 years ago, a student of mine (Dr. R. Giffen) did  
> something like that for VW. Very beautiful. There is an MSc thesis  
> that he wrote about this and I might also be able to find his code.
>
> Ivan
>
> Quoting "Bert Freudenberg" <bert at freudenbergs.de>:
>
>>
>> On 25.01.2009, at 09:22, Karen Villaverde wrote:
>>
>>> Hello,
>>>
>>> I would like to know if there is a visual implementation of  
>>> Squeak. i.e,
>>> a drag and drop system of control blocks to write your code so  
>>> that you do not have to type your code.
>>> I find the Squeak syntax really hard to master.
>>
>> Hi Karen,
>>
>> Did you try Etoys? It does provide a visual scripting layer on top  
>> of Squeak. Download here:
>>
>> http://squeakland.org/download/
>>
>> - Bert -
>>
>>
>>
>>
>
>
>
>