[plt-scheme] scheme questions

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Sat Jul 6 22:14:32 EDT 2002

Short: the answers are "no" and "no".

Long: In HtDP, the canvases with strings (I remember creating one, but 
it could
be two or three) were created with a version of the module/teachpack 
system that
was a bit unsafe. At the time I could sneak in strings through a 
backdoor. The back
door still exists, but it leads into a deadend.

If you're interested in this kind of thing, look up "viewport graphics" 
in help desk.
It's the most natural growth path before you hit DrScheme's true 
underlying graphics

As for printing, the HtDP pictures are screen dumps from my Windows and 
plt tree and included as either gifs, jpegs, or eps. That's your best 
bet at the moment.
Sorry, but the teachpack wasn't intended for large graphics stuff. Just 
for a taste.

-- Matthias

On Thursday, July 4, 2002, at 05:14 AM, bob jones wrote:

> [Please handle PLT Scheme list administrative tasks through the Web:
>   http://list.cs.brown.edu/mailman/listinfo/plt-scheme]
> Hi,
>  I have two quick DrScheme questions.
> 1) I am creating drawings on the canvas afer loading the draw.ss 
> teachpack (using Advanced Language), how can I put text on the canvas 
> to label lines?
> 2) Secondly, how can you print the drawings created on the canvas to a 
> printer?
> Thank you very much,
> Bob
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