计算包围盒中心坐标

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class test : MonoBehaviour
{
    public Transform parent;    //这个parent下面挂着四个物体
    public GameObject ObjCenter;   //这个物体是为了说明清楚计算后的中心点的位置的
    // Use this for initialization
    void Start()
    {
       
    }

    // Update is called once per frame
    void Update()
    {
        ObjCenter.transform.position = GetCenter(parent);
    }
    //计算模型的中心点
    public static Vector3 GetCenter(Transform tt)
    {

        Transform parent = tt;

        Vector3 postion = parent.position;

        Quaternion rotation = parent.rotation;

        Vector3 scale = parent.localScale;

        parent.position = Vector3.zero;

        parent.rotation = Quaternion.Euler(Vector3.zero);

        parent.localScale = Vector3.one;

        Vector3 center = Vector3.zero;

        Renderer[] renders = parent.GetComponentsInChildren<Renderer>();

        foreach (Renderer child in renders)
        {
            center += child.bounds.center;
        }

        center /= parent.GetComponentsInChildren<Renderer>().Length;

        Bounds bounds = new Bounds(center, Vector3.zero);

        foreach (Renderer child in renders)
        {

            bounds.Encapsulate(child.bounds);

        }

        parent.position = postion;

        parent.rotation = rotation;

        parent.localScale = scale;

        return bounds.center + parent.position;
    }
}