/// <summary>
/// 计算多个物体的中心点
/// </summary>
/// <param name="Points"></param>
/// <returns></returns>
public Vector3 Calculate_CenterPoint(List<Transform> Points)
{
    int total = Points.Count;
    float lat = 0, lon = 0;

    foreach (Transform p in Points)
    {
        lat += p.transform.position.x;// * Mathf.PI / 180;
        lon += p.transform.position.z;// * Mathf.PI / 180;        
    }

    lat /= total;
    lon /= total;

    Vector3 centerPoint = new Vector3(lat, Points[0].position.y, lon);
    return centerPoint;
}