Re: [Tutor] How do I make Python draw?

[Alan G]

I found my message to Nathan, looks like I pressed the wrong
reply button in the Outlook Express newsreader. I thought I'd
forward it to the list since:
a) we don't often discuss the turtle module and
b) I ask a question at the end that I'd like an answer to! :-)
Alan G.


----- Original Message ----- 
From: "Alan G" <[EMAIL PROTECTED]>
To: "Nathan Pinno" <[EMAIL PROTECTED]>
Sent: Wednesday, July 27, 2005 10:15 PM
Subject: Re: How do I make Python draw?



How do I make Python draw a shape? e.g. a triangle Is there a
specific
module that I have to call, or what is the command(s)?

There are several options, most involve using a GUI framework to
create
a Canvas widget and drawing inside that.

However for your purposes a more interesting route might be to try
the Python turtle module, it does the GUI bits for you and allows 
you
to draw graphics by commanding a 'turtle' pen to move on the screen.

If you know logo or any other turtle implementation it will be easy,
if not an interesting lrearning experience and a fairly easy wauy of
drawing basic geometric shapes...

You can play with turtle by importing it at a >>> prompt and 
issueing
commands. Here is a session to draw an equilateral triangle:

import turtle as t
p = t.Pen()
p.reset()
p.down()
for side in range(3):
...    p.forward(100)
...    p.left(120)
...

And attached is a jpeg of the resultant canvas.
(The righward horizontal line seems to be a buglet in the module
- does anyone know how to get rid of it?)

HTH,

Alan G.

<<attachment: turtle.jpg>>
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