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/usr/lib64/python3.12/turtledemo/rosette.py

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"""      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 perf_counter as 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 "runtime: %.3f sec" % (z1+et-at)

if __name__ == '__main__':
    msg = main()
    print(msg)
    mainloop()

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__pycache__ DIR	-	drwxr-xr-x	2026-05-25 08:18:07	Edit Download recursive recursive
bytedesign.py	4.15 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
chaos.py	951 B	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
clock.py	3.23 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
colormixer.py	1.31 KB	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
forest.py	2.90 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
fractalcurves.py	3.39 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
lindenmayer.py	2.38 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
minimal_hanoi.py	2.00 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
nim.py	6.36 KB	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
paint.py	1.26 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
peace.py	1.04 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
penrose.py	3.30 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
planet_and_moon.py	2.76 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
rosette.py	1.33 KB	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
round_dance.py	1.76 KB	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
sorting_animate.py	4.93 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
tree.py	1.37 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive
turtle.cfg	160 B	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
two_canvases.py	1.09 KB	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
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__init__.py	314 B	lrw-r--r--	2026-03-03 12:39:30	Edit Download recursive recursive
__main__.py	15.01 KB	lrwxr-xr-x	2026-03-03 12:39:30	Edit Download recursive recursive

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