# Tk_spiralpowered.py

# Tk_spiralpowered.py

from Tkinter import *
from PIL import Image, ImageTk
import random
import math
import time
ww = 500
hh = 500

root = Tk()
root.title("Tk Spiral")
root.geometry("%dx%d+-10+0"%(ww,hh))
canvas = Canvas(root, width=ww, height=hh)
canvas.pack()

xy = []
PI = math.pi
ww0 = ww/2
hh0 = hh/2
for i in range(500):
    t = i / 20.0 * PI
    d = i*0.1+i**(0.002*i)
    x = ww0 + d * math.cos(i/5.0)
    y = hh0 + d * math.sin(i/5.0)
    xy.append((x,y))

canvas.create_line(xy, fill="purple", width=3)
canvas.update()