如何检查坐标是否在某个区域内Python

def is_point_in_area(point, area):
    x, y = point  # 获取坐标点的经纬度
    count = 0  # 交点计数器

    for i in range(len(area)):
        x1, y1 = area[i]
        x2, y2 = area[(i + 1) % len(area)]

        # 判断射线与边界的交点
        if ((y1 > y) != (y2 > y)) and (x < (x2 - x1) * (y - y1) / (y2 - y1) + x1):
            count += 1

    return count % 2 == 1  # 判断交点个数的奇偶性

# 示例用法
area = [(0, 0), (0, 5), (5, 5), (5, 0)]  # 区域边界点
point = (2, 2)  # 待检查的坐标点

if is_point_in_area(point, area):
    print("坐标点在区域内")
else:
    print("坐标点在区域外")