[Help] Koch snowflake from Python 2.5 [Turtle]

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[Help] Koch snowflake from Python 2.5 [Turtle]

 
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  #1
Sep 28th, 2009
Hey I'm very new to the programming world, and what i am trying to do is produce a Koch Snowflake via turtle from python2.5.
this is what I have so far...
Python Syntax (Toggle Plain Text) 
  1. from turtle import *
  2.  
  3. def snowflake(lengthSide, levels):
  4.     if levels == 0:
  5.         return forward(lengthSide), right(120), forward(lengthSide), right(120), forward(lengthSide)
  6.  
  7.     forward(lengthSide)
  8.     left(60)
  9.     forward(lengthSide)
  10.     right(60)
  11.     right(60)
  12.     forward(lengthSide)
  13.     left(60)
  14.     forward(lengthSide)
  15.     right(120)
  16.     snowflake(lengthSide, levels)
as you can see i've only solved for levels 0 and 1... the problem is i dont understand how to recursively redraw it from a certain location. If anyone has any ideas or tip, it would be helpful.
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Re: [Help] Koch snowflake from Python 2.5 [Turtle]

 
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  #2
Sep 28th, 2009
I suggest this
python Syntax (Toggle Plain Text) 
  1. from turtle import *
  2.  
  3. def snowflake(lengthSide, levels):
  4.     if levels == 0:
  5.         forward(lengthSide)
  6.         return
  7.     lengthSide /= 3.0
  8.     snowflake(lengthSide, levels-1)
  9.     left(60)
  10.     snowflake(lengthSide, levels-1)
  11.     right(120)
  12.     snowflake(lengthSide, levels-1)
  13.     left(60)
  14.     snowflake(lengthSide, levels-1)
  15.  
  16.  
  17. if __name__ == "__main__":
  18.     speed(0)
  19.     length = 300.0
  20.     penup()
  21.     backward(length/2.0)
  22.     pendown()
  23.     snowflake(length, 4)
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Re: [Help] Koch snowflake from Python 2.5 [Turtle]

 
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  #3
Sep 28th, 2009
Thank you very much, this helped alot!
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