Peano Curve in python tkinter recursive

Question

I'm trying to find out how to draw a peano curve in tkinter. Should I use create_line?

My second question is how to start writing peano_curve function recursively: where to start drawing, setting steps, setting shutdown condition and so on. Can anyone help me to write this function? I haven't found anything useful on the Internet so far.

Give it a try on your own and ask specific questions as you get stuck. — wberry, Feb 08 '12 at 15:29

unutbu · Answer 1 · 2012-02-08T19:46:15.680

1

Your distribution of Python should come with demo scripts which use tkinter (and the turtle module) to draw fractal curves. (Talk about batteries being included! :))

Running

python fractalcurves.py

draws the Hilbert curve:

enter image description here

You could study this code and modify it to draw the Peano curve.

On Ubuntu 11.10 the file is located at /usr/share/doc/python2.7/examples/Demo/turtle/tdemo_fractalcurves.py. If the demo scripts were not packaged with in your distribution of Python, you can also find it in the source code repository here.

edited Feb 08 '12 at 19:46

answered Feb 08 '12 at 16:37

unutbu

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Very bad answer. A peano curve divide the space into 9 tiles. – Micromega Feb 20 '12 at 07:17

score 1 · Answer 2 · answered Feb 08 '12 at 18:40

1

Drawing such curves is usually pretty easy. Use "turtle graphics" and L-Systems, and it should be fairly easy.

https://en.wikipedia.org/wiki/L-system

The Peano curve as L-System then just is this:

F -> F+F-F-F-F+F+F+F-F

with 90° rotations on + and -, and F either being recursion or drawing (at the desired level).

answered Feb 08 '12 at 18:40

Has QUIT--Anony-Mousse

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can i combine turtle and tkinter? – anonf34 Feb 09 '12 at 10:43
turtle graphics is a technique, not a library. https://en.wikipedia.org/wiki/Turtle_graphics – Has QUIT--Anony-Mousse Feb 09 '12 at 11:50

Peano Curve in python tkinter recursive

2 Answers2