AR设备使用Vuforia的优化

　　主要是设置识别的范围，在应用内检测当前识别图和我的距离，以及识别图和我的角度，当进入了规定的范围和角度后，

在进行定位功能。我目前用的是距离在两米内 摄像机和识别图的角度正负不超过30度的范围

       VuforiaManager 管理

       VuforialFindImageAction 识别图上，设置对应管理里的第几个VuforiaAnchor

       VuforiaAnchor  定位的物体，注意旋转，Z轴要和Camera 看向物体的方向一致（反正180 自己测一下）

/****************************
  summary：

****************************/
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class VuforiaManager : MonoSingleton<VuforiaManager>
{
    /// <summary>
    /// 当前生成的场景
    /// </summary>
    public Transform sceneMap;
    //[SerializeField]
    //private List<Transform> list_ImageTargetObj;
    [SerializeField]
    public List<VuforiaAnchor> list_Anchor;
    private VuforiaAnchor oldAnchor;

    public Text text;
    public bool isCorrect;
    private void Start()
    {
        oldAnchor = null;

        StartCoroutine(LoadARCamera());
        isCorrect = false;
    }

    //private void Update()
    //{
    //    if (oldAnchor != null)
    //        text.text = oldAnchor.transform.eulerAngles.x + "  " + oldAnchor.transform.eulerAngles.y + "  " + oldAnchor.transform.eulerAngles.z;
    //}
    public void TrackingFound(Transform targetObj , int num)
    {
        try
        {
            if (list_Anchor.Count < (num+1) || list_Anchor.Count < 1)
                return;
            SelectSceneAnchor(targetObj, num);
        }
        catch (System.Exception e)
        {
            Debug.LogError(e.Message);
        }
    }

    public void TrackingLost(int num)
    {
        if (list_Anchor.Count < (num+1) || list_Anchor.Count < 1)
            return;
        list_Anchor[num].Close();
    }

    public void SelectSceneAnchor(Transform targetObj, int num)
    {
        if (oldAnchor == null)
        {
            oldAnchor = list_Anchor[num];
            oldAnchor.Show(targetObj);
        }
        else if (oldAnchor == list_Anchor[num])
        {
            // oldTarget.DirectClose();
            oldAnchor.ReplaceShow();
        }
        else if (oldAnchor != list_Anchor[num])
        {
            oldAnchor.DirectClose();
            oldAnchor = list_Anchor[num];
            oldAnchor.Show(targetObj);

           // if(oldAnchor!=list_Anchor[num].gameObject)
        }
    }

    public void ARCameraLoad()
    {
      //  StartCoroutine(LoadARCamera());
    }

     IEnumerator LoadARCamera()
    {
       // yield return API_GSXR_Slam.SlamManager.IsRunning;

        yield return new WaitForSeconds(2f);
       GameObject.Instantiate(Resources.Load<GameObject>("ARCamera"));
    }

   
}

/****************************
  summary： 计算锚点差值，定位场景

****************************/
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class VuforiaAnchor : MonoBehaviour
{
    private Transform targetObj = null;

    private bool state = false;
    private bool onlySet = true;
  //  private Collider[] coliders;
    public Transform player;
   
    private float y;
    private Vector3 disPos;
    private float dic;
    private Vector3 dir;
    private Vector3 cross;
    private float dot;
    private float deg;
    private void Start()
    {
     //   player = API_SVR.GetHead();
    }

    private void FixedUpdate()
    {    
        /*
         *  1.首次定位时直接整体 移动选择
         *  2.后续矫正判断识别图和Player的公积和距离，在范围内再进行移动
         *  
         */
        if (state && VuforiaManager.Instance.isCorrect)
        {
            if (player == null)
                return;

            if (onlySet)
            {
                onlySet = false;

                y = targetObj.eulerAngles.y - transform.eulerAngles.y;
                VuforiaManager.Instance.sceneMap.eulerAngles += new Vector3(0, y, 0);
                disPos = targetObj.position - transform.position;
                //Debug.Log(transform.position + "  " + targetObj.position);
                //Debug.Log(VuforiaManager.Instance.sceneMap.position);
                //Debug.Log(" DisPos   " + disPos);
                VuforiaManager.Instance.sceneMap.position += disPos;
            }
            else
            {

                Vector3 disPos = targetObj.position - transform.position;
                disPos = VuforiaManager.Instance.sceneMap.position + disPos;
                VuforiaManager.Instance.sceneMap.position = Vector3.Lerp(VuforiaManager.Instance.sceneMap.position, disPos, Time.deltaTime * 10f);
              
            }
        }
    }
    // 首次定位
    public void Show( Transform targetObj)
    {
        Debug.Log("  Show    ");
        this.targetObj = targetObj;
        // StartCoroutine(Show(1));
        state = true;
        onlySet = true;
    }


    //再次定位
    public void ReplaceShow()
    {
        state = true;
       // onlySet = true;
        //  StartCoroutine(Show(1));
    }
    // 关闭
    public void Close()
    {
        state = false;
    }
    // 强制关闭
    public void DirectClose()
    {
        state = false;
    }

    public void PhysicsCollider()
    {
        //coliders = Physics.OverlapSphere(transform.position, 2.5f, 8);
        //player = coliders[0].transform;
        //if (coliders.Length>1)
        //{
        //    Debug.LogError(" 检测玩家个数设置错误 ");
        //    return;
        //}

      
    }

    IEnumerator Show(float timer)
    {
        yield return new WaitForSeconds(timer);

        float y = targetObj.eulerAngles.y - transform.eulerAngles.y;
        VuforiaManager.Instance.sceneMap.eulerAngles += new Vector3(0, y, 0);

        Vector3 disPos = targetObj.position - transform.position;
        Debug.Log(transform.position + "  " + targetObj.position);
        Debug.Log(VuforiaManager.Instance.sceneMap.position);
        Debug.Log(" DisPos   " + disPos);

        VuforiaManager.Instance.sceneMap.position += disPos;
    }


}

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

public class VuforialFindImageAction : DefaultTrackableEventHandler
{
    public string Name;
   // [HideInInspector]
    public TargetObjDeg targetObj;
  //  [HideInInspector]
    public int num;
    [HideInInspector]
    public int pointObj;
    protected override void OnTrackingFound()
    {
        
        //if (VuforialMap.Instance != null)
        //    VuforialMap.Instance.TargetPointShow(this);
        if (VuforiaManager.Instance != null)
        {
            Debug.Log(num);
            //  VuforialControl.Instance.TrackingFound(targetObj, num, pointObj);
            VuforiaManager.Instance.TrackingFound(targetObj.transform, num);
            targetObj.state = true;
        }
        base.OnTrackingFound();

       
    }

    protected override void OnTrackingLost()
    {

        //  VuforialControl.Instance.TrackingLost(num);
        if(VuforiaManager.Instance!=null)
        {
            Debug.Log(num);
            VuforiaManager.Instance.TrackingLost(num);
            targetObj.state = false;
        }
        
        //if (VuforialMap.Instance != null)
        //    VuforialMap.Instance.TargetPointClose(this);
        base.OnTrackingLost();      
    }
}

public enum ShowObj
{
    ScenicSpot = 0,
    Rotue = 1,
    obj3D = 2
}