python PIL 生成随机形状

你可以使用Python的PIL库（Python Imaging Library）来生成随机形状。下面是一个简单的示例代码，可以生成随机的圆形、矩形和椭圆形：

from PIL import Image, ImageDraw
import random

# 生成随机形状
def random_shape(width, height):
    # 创建一个空白图像
    img = Image.new("RGBA", (width, height), (255, 255, 255, 0))
    draw = ImageDraw.Draw(img)

    # 随机选择形状类型
    shape_type = random.choice(["circle", "rectangle", "ellipse"])

    # 随机生成形状的位置和大小
    x1 = random.randint(0, width)
    y1 = random.randint(0, height)
    x2 = random.randint(0, width)
    y2 = random.randint(0, height)
    size = random.randint(20, 100)

    # 根据形状类型绘制形状
    if shape_type == "circle":
        draw.ellipse((x1, y1, x1 + size, y1 + size), fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255), 255))
    elif shape_type == "rectangle":
        draw.rectangle((x1, y1, x1 + size, y1 + size), fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255), 255))
    else:
        draw.ellipse((x1, y1, x2, y2), fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255), 255))

    return img

# 生成多个随机形状
def generate_shapes(num_shapes, width, height):
    result = Image.new("RGBA", (width, height), (255, 255, 255, 0))
    for i in range(num_shapes):
        img = random_shape(width, height)
        result = Image.alpha_composite(result, img)
    return result

# 测试
img = generate_shapes(10, 500, 500)
img.show()

这个示例代码会生成一个500x500的图像，其中包含10个随机形状。你可以根据自己的需求修改参数来生成不同大小和数量的随机形状。