writing a turtle class and drawing koch snowflake

[jum2011]

Hi, I just received a project in my class where i have to write my own turtle class in python which I will have to use to draw a Koch snowflake. Currently I have no idea on how to get started on the turtle class? If anyone knows or has any tip please reply! Thanks.

[TrustyTony]

You could implement the turtle movements using complex number support in Python.

[jum2011]

Actually I am new to python so I'm not really sure what you mean???

[Ene Uran]

Maybe a look at
http://docs.python.org/library/turtle.html
will give you the hints you need

[TrustyTony]

More specifically this my post could help as it has the shape you need to make with standard turtle package:
http://www.daniweb.com/software-development/python/threads/226241/1405443#post1405443

In Idle you can open module turtle from file->open module and look some time for ideas.

[ZZucker]

For the basics of a Koch snowflake see:
http://ecademy.agnesscott.edu/~lriddle/ifs/ksnow/ksnow.htm

[jum2011]

Well, now I understand koch snowflake, but how would I write the turtle class to draw it because for this project we have to write our own turtle class, this is what I have so far:

class Turtle:
    def __init__(self, location, direction):
        self.location = location
        self.direction = direction * math.pi / 180

    def moveTo(self, somePoint):
        some code..
    def draw(self, length, win):
        some code..
    def turn(self, degrees):
        some code..

I don't understand how to actually draw the line and then rotate it in python????

[vegaseat]

You need to start out with a GUI toolkit like Tkinter that comes with Python. That will do the actual drawing.

The turtle will point in a certain direction and you have to use trigonometry to calculate the length of the line and its end point (x, y) from the angle the line has to be drawn.