Function and turtle help
Scott W Dunning
swdunning at cox.net
Fri Feb 21 06:27:47 CET 2014
On Feb 20, 2014, at 9:41 PM, Scott W Dunning <swdunning at cox.net> wrote:
> Hello,
>
> I am trying to make a function that allows me to color in a star that was drawn in Turtle. I just keep having trouble no matter what I do. I’ll post the code I have for the star (just in case). The ultimate goal is to create a script that’ll draw the American flag (we’re learning this piece by piece in class. So, I need to create a function that will color in the star that I can call multiple times for each star. Any help is greatly appreciated!
>
> Scott
>
> from turtle import *
> from math import sin, sqrt, radians
>
> showturtle()
> def star(width):
> R = (width)/2*sin(radians(72))
> A = (2*width)/(3+sqrt(5))
> penup()
> left(18)
> penup()
> forward(R)
> pendown()
>
> left(162)
> forward(A)
> right(72)
> forward(A)
>
> left(144)
> forward(A)
> right(72)
> forward(A)
>
> left(144)
> forward(A)
> right(72)
> forward(A)
>
> left(144)
> forward(A)
> right(72)
> forward(A)
>
> left(144)
> forward(A)
> right(72)
> forward(A)
>
> penup()
> left(180-18)
> penup()
> forward(R)
> penup()
> left(180-18)
> pendown()
> showturtle()
> star(500)
I think I’m having trouble with how functions operate. Here is what I have so far for the function to fill in the star with the color red. It’s obviously not working and not sure where I’m going wrong.
def fill_color(color):
color(red)
begin_fill()
penup()
end_fill()
fill_color(red)
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