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  • Committer: Jono Bacon
  • Date: 2010-04-24 18:14:20 UTC
  • mfrom: (93.3.2 python-snippets-bzr)
  • Revision ID: jono@system76-pc-20100424181420-hup208wuekhvr1qc
A bunch of PyTurtle snippets. Thanks, Grant!

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pyturtle/tdemo_yinyang.py
 
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#!/usr/bin/env python
 
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#
 
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# [SNIPPET_NAME: Yin Yang]
 
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# [SNIPPET_CATEGORIES: PyTurtle]
 
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# [SNIPPET_DESCRIPTION: Use turtle to draw a yin yang.]
 
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# [SNIPPET_DOCS: http://docs.python.org/library/turtle.html]
 
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# [SNIPPET_AUTHOR: Grant Bowman <grantbow@ubuntu.com>]
 
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# [SNIPPET_LICENSE: PSF]
 
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# Code authorship from http://python.org/download/releases/2.6.4/
 
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"""       turtle-example-suite:
 
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            tdemo_yinyang.py
 
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Another drawing suitable as a beginner's
 
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programming example.
 
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The small circles are drawn by the circle
 
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command.
 
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"""
 
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from turtle import *
 
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def yin(radius, color1, color2):
 
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    width(3)
 
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    color("black")
 
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    fill(True)
 
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    circle(radius/2., 180)
 
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    circle(radius, 180)
 
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    left(180)
 
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    circle(-radius/2., 180)
 
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    color(color1)
 
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    fill(True)
 
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    color(color2)
 
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    left(90)
 
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    up()
 
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    forward(radius*0.375)
 
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    right(90)
 
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    down()
 
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    circle(radius*0.125)
 
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    left(90)
 
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    fill(False)
 
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    up()
 
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    backward(radius*0.375)
 
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    down()
 
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    left(90)
 
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def main():
 
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    reset()
 
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    yin(200, "white", "black")
 
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    yin(200, "black", "white")
 
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    ht()
 
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    return "Done!"
 
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if __name__ == '__main__':
 
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    main()
 
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    mainloop()