ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / lib64 / python2.7 / Demo / tkinter / guido

# Brownian motion -- an example of a NON multi-threaded Tkinter program ;)
# By Michele Simoniato, inspired by brownian.py

from Tkinter import *
import random
import sys

WIDTH = 400
HEIGHT = 300
SIGMA = 10
BUZZ = 2
RADIUS = 2
LAMBDA = 10
FILL = 'red'

stop = 0                                # Set when main loop exits
root = None                             # main window

def particle(canvas):                   # particle = iterator over the moves
    r = RADIUS
    x = random.gauss(WIDTH/2.0, SIGMA)
    y = random.gauss(HEIGHT/2.0, SIGMA)
    p = canvas.create_oval(x-r, y-r, x+r, y+r, fill=FILL)
    while not stop:
        dx = random.gauss(0, BUZZ)
        dy = random.gauss(0, BUZZ)
        try:
            canvas.move(p, dx, dy)
        except TclError:
            break
        else:
            yield None

def move(particle): # move the particle at random time
    particle.next()
    dt = random.expovariate(LAMBDA)
    root.after(int(dt*1000), move, particle)

def main():
    global root, stop
    root = Tk()
    canvas = Canvas(root, width=WIDTH, height=HEIGHT)
    canvas.pack(fill='both', expand=1)
    np = 30
    if sys.argv[1:]:
        np = int(sys.argv[1])
    for i in range(np):                  # start the dance
        move(particle(canvas))
    try:
        root.mainloop()
    finally:
        stop = 1

if __name__ == '__main__':
    main()

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[-] hanoi.pyo [edit]
[-] brownian2.pyc [edit]
[-] svkill.py [edit]
[-] MimeViewer.pyo [edit]
[-] hello.pyc [edit]
[-] paint.pyc [edit]
[-] rmt.pyc [edit]
[-] ShellWindow.pyc [edit]
[-] electrons.pyc [edit]
[-] switch.pyo [edit]
[-] mbox.py [edit]
[-] optionmenu.py [edit]
[+] ..
[-] hello.py [edit]
[-] electrons.py [edit]
[-] ShellWindow.py [edit]
[-] ss1.pyo [edit]
[-] optionmenu.pyo [edit]
[-] listtree.py [edit]
[-] listtree.pyo [edit]
[-] paint.pyo [edit]
[-] brownian2.pyo [edit]
[-] mbox.pyc [edit]
[-] imagedraw.pyo [edit]
[-] optionmenu.pyc [edit]
[-] imagedraw.py [edit]
[-] dialog.pyc [edit]
[-] canvasevents.pyo [edit]
[-] AttrDialog.pyc [edit]
[-] newmenubardemo.pyc [edit]
[-] solitaire.pyc [edit]
[-] switch.py [edit]
[-] tkman.pyo [edit]
[-] paint.py [edit]
[-] wish.pyc [edit]
[-] listtree.pyc [edit]
[-] hanoi.py [edit]
[-] newmenubardemo.pyo [edit]
[-] rmt.py [edit]
[-] sortvisu.pyo [edit]
[-] solitaire.pyo [edit]
[-] wish.pyo [edit]
[-] AttrDialog.pyo [edit]
[-] imagedraw.pyc [edit]
[-] svkill.pyo [edit]
[-] AttrDialog.py [edit]
[-] newmenubardemo.py [edit]
[-] brownian.pyo [edit]
[-] tkman.pyc [edit]
[-] dialog.py [edit]
[-] kill.pyc [edit]
[-] sortvisu.py [edit]
[-] ss1.py [edit]
[-] canvasevents.pyc [edit]
[-] ManPage.py [edit]
[-] ShellWindow.pyo [edit]
[-] mbox.pyo [edit]
[-] hanoi.pyc [edit]
[-] brownian.pyc [edit]
[-] MimeViewer.pyc [edit]
[-] imageview.py [edit]
[-] electrons.pyo [edit]
[-] kill.py [edit]
[-] imageview.pyo [edit]
[-] sortvisu.pyc [edit]
[-] ManPage.pyo [edit]
[-] ManPage.pyc [edit]
[-] canvasevents.py [edit]
[-] hello.pyo [edit]
[-] switch.pyc [edit]
[-] rmt.pyo [edit]
[-] tkman.py [edit]
[-] brownian2.py [edit]
[-] svkill.pyc [edit]
[-] MimeViewer.py [edit]
[-] imageview.pyc [edit]
[-] dialog.pyo [edit]
[-] brownian.py [edit]
[-] kill.pyo [edit]
[-] ss1.pyc [edit]