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Code: Alles auswählen

from Tkinter import *
import math
import time

def create_spiral(x,y):
    res = [(x,y)]
    while len(res) <= 500:
        r = math.hypot(x,y) + 0.4
        a = math.atan2(y,x) + 0.2
        x = r * math.cos(a)
        y = r * math.sin(a)
        res.append((x,y))
    c.create_line(res, width=3, tags="line")

def rotate(x0,y0,d):
    coords = []
    old = c.coords("line")
    for i in range(0,len(old),2):
        x,y = old[i], old[i+1]
        r = math.hypot(y-y0, x-x0)
        a = math.atan2(y-y0, x-x0) + d
        x = x0 + r*math.cos(a)
        y = y0 + r*math.sin(a)
        coords.append((x,y))
    c.delete("line")
    c.create_line(coords, width=3, tags="line")

root = Tk()
c = Canvas(width=400, height=400)
c.pack()
create_spiral(0,0)
c.config(scrollregion=c.bbox(ALL))

while 1:
    rotate(0,0,0.1)
    root.update()
    time.sleep(0.01)

root.mainloop()

Code: Alles auswählen

import math
import time
import Tkinter as tk


def create_spiral(canvas, x, y, line_width=3):
    coords = [(x, y)]
    for dummy in xrange(500):
        r = math.hypot(x, y) + 0.4
        a = math.atan2(y, x) + 0.2
        x = r * math.cos(a)
        y = r * math.sin(a)
        coords.append((x, y))
    return canvas.create_line(coords, width=line_width)


def rotate(canvas, line, x0, y0, d):
    coords = list()
    old = canvas.coords(line)
    for i in range(0, len(old), 2):
        x, y = old[i] - x0, old[i + 1] - y0
        r = math.hypot(y, x)
        a = math.atan2(y, x) + d
        coords.append(x0 + r * math.cos(a))
        coords.append(y0 + r * math.sin(a))
    canvas.coords(line, *coords)


def main():
    root = tk.Tk()
    canvas = tk.Canvas(width=400, height=400)
    canvas.pack()
    spiral = create_spiral(canvas, 0, 0)
    canvas.config(scrollregion=canvas.bbox(tk.ALL))
    
    while True:
        rotate(canvas, spiral, 0, 0, 0.1)
        root.update()
        time.sleep(0.01)


if __name__ == '__main__':
    main()