Python–turtle库科赫雪花的扩展

小半 • 2023年2月15日下午7:55 • 技术随笔 • 阅读 292

对科赫雪花的一个扩展–实现了随机位置，随机阶数，随机颜色，随机尺寸的功能

附上代码

一、随机阶数

def randomlevel():
    level = random.randint(1, 4)
    level = int(level)
    return level

二、随机尺寸-随机位置

def randomSize():
    size = random.randint(50, 100)
    size = int(size)
    return size

def randomDrawX():
    x=random.randint(-500,500)
    x=int(x)
    return x

def randomDrawY():
    y=random.randint(-300,300)
    y=int(y)
    return y

三、随机颜色

def randomcolor():
    colorArr = ['1','2','3','4','5','6','7','8','9','A','B','C','D','E','F']
    color = ""
    for i in range(6):
        # 拼接字符串
        color += colorArr[random.randint(0,14)]
    return "#"+color

四、全部代码

import turtle,random
# 主函数
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)
#随机阶数
def randomlevel():
    level = random.randint(1, 4)
    level = int(level)
    return level
#随机尺寸
def randomSize():
    size = random.randint(50, 100)
    size = int(size)
    return size
#随机位置
def randomDrawX():
    x=random.randint(-500,500)
    x=int(x)
    return x

def randomDrawY():
    y=random.randint(-300,300)
    y=int(y)
    return y
#随机颜色
def randomcolor():
    colorArr = ['1','2','3','4','5','6','7','8','9','A','B','C','D','E','F']
    color = ""
    for i in range(6):
        color += colorArr[random.randint(0,14)]
    return "#"+color

def main():
    turtle.setup(1200,700,100,100)
    #设置画布背景颜色
    turtle.screensize(bg="#F8F8FF")
    turtle.pensize(1)
    line = randomlevel()
    size = randomSize()
    numbers= random.choice([3, 4, 5, 6, 7, 8, 9,])
    for i in range(0,numbers):
        turtle.penup()
        x = randomDrawX()
        y = randomDrawY()
        turtle.color(randomcolor(),"white")
        turtle.goto(x, y)
        turtle.speed(2000)
        turtle.pendown()
        koch(size, line)
        turtle.right(120)
        koch(size, line)
        turtle.right(120)
        koch(size, line)
    turtle.done()
    turtle.hideturtle()
main()

五、效果图–每次运行生成不同的图像