author | Shabe Razvi <shaber@symbian.org> |
Wed, 21 Oct 2009 13:56:56 +0100 | |
changeset 17 | c506b18dc03f |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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# Brownian motion -- an example of a NON multi-threaded Tkinter program ;) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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# By Michele Simoniato, inspired by brownian.py |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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Initial QEMU (symbian-qemu-0.9.1-12) import
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from Tkinter import * |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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import random |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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import sys |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Initial QEMU (symbian-qemu-0.9.1-12) import
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WIDTH = 400 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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HEIGHT = 300 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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SIGMA = 10 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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BUZZ = 2 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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RADIUS = 2 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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LAMBDA = 10 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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FILL = 'red' |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Initial QEMU (symbian-qemu-0.9.1-12) import
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stop = 0 # Set when main loop exits |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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root = None # main window |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Initial QEMU (symbian-qemu-0.9.1-12) import
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def particle(canvas): # particle = iterator over the moves |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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r = RADIUS |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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x = random.gauss(WIDTH/2.0, SIGMA) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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y = random.gauss(HEIGHT/2.0, SIGMA) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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p = canvas.create_oval(x-r, y-r, x+r, y+r, fill=FILL) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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while not stop: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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dx = random.gauss(0, BUZZ) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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dy = random.gauss(0, BUZZ) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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try: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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canvas.move(p, dx, dy) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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except TclError: |
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break |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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else: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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yield None |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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Initial QEMU (symbian-qemu-0.9.1-12) import
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def move(particle): # move the particle at random time |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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particle.next() |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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dt = random.expovariate(LAMBDA) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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root.after(int(dt*1000), move, particle) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
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def main(): |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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global root, stop |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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root = Tk() |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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canvas = Canvas(root, width=WIDTH, height=HEIGHT) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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canvas.pack(fill='both', expand=1) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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np = 30 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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if sys.argv[1:]: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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np = int(sys.argv[1]) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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for i in range(np): # start the dance |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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move(particle(canvas)) |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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try: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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root.mainloop() |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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finally: |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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stop = 1 |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
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if __name__ == '__main__': |
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Initial QEMU (symbian-qemu-0.9.1-12) import
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main() |