学习一下用python处理分形几何中图像应用问题。
首先来绘制科赫曲线:
import turtle
def koch(size, n):
if n == 0:
turtle.fd(size)
else:
for angle in [0, 60, -120, 60]:
turtle.left(angle)
koch(size/3, n-1)
def main():
turtle.setup(800,400)
turtle.penup()
turtle.goto(-300, -50)
turtle.pendown()
turtle.pensize(2)
koch(600, 3) # 3阶科赫曲线,阶数
turtle.hideturtle()
main()
科赫雪花代码如下:
import turtle
def koch(size,n):
if n==0:
turtle.fd(size)
else:
for angle in [0,60,-120,60]:
turtle.left(angle)
koch(size/3,n-1)
def main():
turtle.setup(600,600)
turtle.penup()
turtle.goto(-200, 100)
turtle.pendown()
turtle.pensize(2)
level = 3 # 3阶科赫雪花,阶数
koch(400, level)
turtle.right(120)
koch(400, level)
turtle.right(120)
koch(400, level)
turtle.hideturtle()
main()