using UnityEngine;

using System.Collections;

public class SaiGetLatLog : MonoBehaviour {

    public Transform firstPoint; //Unity中左上点

    public Transform secondPoint;//Unity中右下点

    public SaiEarth firstSai;//地图中对应的左上经纬度点

    public SaiEarth secondSai;//地图中对应的右下经纬度点

    private float z_offset,x_offset,z_w_offset,x_w_offset;

    private RaycastHit rayHit;

    // Use this for initialization

    void Start () {

        InitBasicNum ();//初始化参数

    }

    // Update is called once per frame

    void Update () {

        if (Input.GetMouseButton () && Physics.Raycast (Camera.main.ScreenPointToRay (Input.mousePosition), out rayHit, Mathf.Infinity)) {

            print ( getWorldPoint(firstSai).x+","+ getWorldPoint(firstSai).z);

        }

    }

    void InitBasicNum()

    {

        firstSai = new SaiEarth (new Vector3 (116f, 23f, 9.27f), new Vector3 (39f, 55f, 15.74f));

        secondSai = new SaiEarth (new Vector3(116f,23f,44.39f),new Vector3(39f,54f,44.27f));

        z_offset = Mathf.Abs ((firstSai.latitude.x+firstSai.latitude.y/+firstSai.latitude.z/) - (secondSai.latitude.x+secondSai.latitude.y/+secondSai.latitude.z/));//地图中的维度差

        x_offset = Mathf.Abs ((firstSai.longitude.x+firstSai.longitude.y/+firstSai.longitude.z/)-(secondSai.longitude.x+secondSai.longitude.y/+secondSai.longitude.z/));//地图中的经度差

         z_w_offset = Mathf.Abs (firstPoint.localPosition.z - secondPoint.localPosition.z);//unity中的维度差

         x_w_offset = Mathf.Abs (firstPoint.localPosition.x - secondPoint.localPosition.x);//unity中的经度差

    }

    Vector3 getWorldPoint(SaiEarth se)//由经纬度得到位置点

    {

        float tempX = (float)(se.longitude.x + se.longitude.y /  + se.longitude.z /  - (secondSai.longitude.x + secondSai.longitude.y /  + secondSai.longitude.z / ));

        float tempZ = (float)(se.latitude.x + se.latitude.y /  + se.latitude.z /  - (secondSai.latitude.x + secondSai.latitude.y /  + secondSai.latitude.z / ));

        float _tempX = (float)(tempX * x_w_offset / x_offset + secondPoint.localPosition.x);

        float _tempZ = (float)(tempZ * z_w_offset / z_offset + secondPoint.localPosition.z);

        return new Vector3((float)_tempX,0f,(float)_tempZ);

    }

    SaiEarth getLatLon(Vector3 curPoint)//由位置点得到经纬度

    {

        SaiEarth tempEarth = new SaiEarth();

        float _z_offset = Mathf.Abs (curPoint.z - secondPoint.localPosition.z) * z_offset / z_w_offset;

        float _x_offset = Mathf.Abs (curPoint.x - secondPoint.localPosition.x) * x_offset / x_w_offset;

        float resultX = _x_offset + (secondSai.longitude.x + secondSai.longitude.y/ + secondSai.longitude.z/);

        float resultZ = _z_offset + (secondSai.latitude.x + secondSai.latitude.y/ + secondSai.latitude.z/);

        tempEarth.longitude = new Vector3 ((int)resultX, (int)((resultX - (int)resultX)*),((resultX - (int)resultX)* - (int)((resultX - (int)resultX)*))*);

        tempEarth.latitude = new Vector3 ((int)resultZ, (int)((resultZ - (int)resultZ)*),((resultZ - (int)resultZ)* - (int)((resultZ - (int)resultZ)*))*);

        return tempEarth;

    }

}

using UnityEngine;

using System.Collections;

public class SaiEarth  {

    public Vector3 longitude;

    public Vector3 latitude;

    public SaiEarth()

    {

    }

    public SaiEarth(Vector3 longitude,Vector3 latitude)

    {

        this.latitude = latitude;

        this.longitude = longitude;

    }

    public string toString()

    {

        return "Lat:"+this.latitude + ",Long:" + this.longitude;

    }

}