diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/python-2.6.1/Demo/turtle/tdemo_wikipedia.py --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/python-2.6.1/Demo/turtle/tdemo_wikipedia.py Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,65 @@ +""" turtle-example-suite: + + tdemo_wikipedia3.py + +This example is +inspired by the Wikipedia article on turtle +graphics. (See example wikipedia1 for URLs) + +First we create (ne-1) (i.e. 35 in this +example) copies of our first turtle p. +Then we let them perform their steps in +parallel. + +Followed by a complete undo(). +""" +from turtle import Screen, Turtle, mainloop +from time import clock, sleep + +def mn_eck(p, ne,sz): + turtlelist = [p] + #create ne-1 additional turtles + for i in range(1,ne): + q = p.clone() + q.rt(360.0/ne) + turtlelist.append(q) + p = q + for i in range(ne): + c = abs(ne/2.0-i)/(ne*.7) + # let those ne turtles make a step + # in parallel: + for t in turtlelist: + t.rt(360./ne) + t.pencolor(1-c,0,c) + t.fd(sz) + +def main(): + s = Screen() + s.bgcolor("black") + p=Turtle() + p.speed(0) + p.hideturtle() + p.pencolor("red") + p.pensize(3) + + s.tracer(36,0) + + at = clock() + mn_eck(p, 36, 19) + et = clock() + z1 = et-at + + sleep(1) + + at = clock() + while any([t.undobufferentries() for t in s.turtles()]): + for t in s.turtles(): + t.undo() + et = clock() + return "Laufzeit: %.3f sec" % (z1+et-at) + + +if __name__ == '__main__': + msg = main() + print msg + mainloop()