画各阶雪花——科赫曲线思想——Python

曾经终败给现在 2023-02-21 11:56 25阅读 0赞

**turtle库不懂得可以点击链接：** [基本绘图全面攻略——turtle（海龟）][turtle]

import turtle
    def koch(size, n):
        if n == 0:  # 负责画线
            turtle.fd(size)
        else:       #下面函数负责 第几阶段的科赫曲线，海龟方向的指向
            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阶科赫曲线长度，阶数
        turtle.hideturtle()
        turtle.done()
    main()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70]

# 全科赫雪花绘制源代码
    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 = 1      # 3阶科赫雪花，阶数
        koch(400,level)
        turtle.right(120) #重复三遍把图形连接起来
        koch(400,level)
        turtle.right(120)
        koch(400,level)
        turtle.hideturtle()
        turtle.done()
    main()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 2]

为填充颜色代码：

turtle.pencolor("red")
    turtle.fillcolor('blue')
    turtle.begin_fill()
    turtle.end_fill()

# 全科赫雪花填充颜色绘制源代码
    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.pencolor("red")
        turtle.fillcolor('blue')
        turtle.setup(600,600)
        turtle.penup()
        turtle.goto(-200, 100)
        turtle.pendown()
        turtle.pensize(2)
        level = 1      # 3阶科赫雪花，阶数
        turtle.begin_fill()
        koch(400,level)
        turtle.right(120) #重复三遍把图形连接起来
        koch(400,level)
        turtle.right(120)
        koch(400,level)
        turtle.hideturtle()
        turtle.end_fill()
        turtle.done()
        
    main()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 3]

[turtle]: https://blog.csdn.net/weixin_44775255/article/details/106969230
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200630152447824.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20200630151847649.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20200630152101207.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20210407121522104.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ==,size_16,color_FFFFFF,t_70