Sierpinsky arrowhead curve
Note
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Sierpinsky arrowhead curve#

from turtlethread import Turtle
def draw_sierpinsky_arrowhead(needle, step_length, recursion_level, angle=60):
if recursion_level == 0:
needle.forward(step_length)
return
draw_sierpinsky_arrowhead(needle, step_length, recursion_level-1, -angle)
needle.left(angle)
draw_sierpinsky_arrowhead(needle, step_length, recursion_level-1, angle)
needle.left(angle)
draw_sierpinsky_arrowhead(needle, step_length, recursion_level-1, -angle)
needle = Turtle()
with needle.running_stitch(20):
draw_sierpinsky_arrowhead(needle, 20, 6)
needle.save("sierpinsky.jef")
needle.save("sierpinsky.png")
Total running time of the script: ( 0 minutes 0.182 seconds)