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微信公众号怎么上架商品,seo研究中心超逸seo,品牌设计图片,做网站后台指的那最近在做unity3d与Gis结合的项目，最基本的就是坐标的转换问题，比如把经纬度为（166.23.9.27 ， 39.55.15.74） 转换到unity里面成相应的位置点，废话不多说上代码： using UnityEngine; using Syste…

最近在做unity3d与Gis结合的项目，最基本的就是坐标的转换问题，比如把经纬度为（166.23.9.27 ， 39.55.15.74）转换到unity里面成相应的位置点，废话不多说上代码：

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 initializationvoid Start () {InitBasicNum ();//初始化参数
    }// Update is called once per framevoid Update () {if (Input.GetMouseButton (0) && 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/60+firstSai.latitude.z/3600) - (secondSai.latitude.x+secondSai.latitude.y/60+secondSai.latitude.z/3600));//地图中的维度差x_offset = Mathf.Abs ((firstSai.longitude.x+firstSai.longitude.y/60+firstSai.longitude.z/3600)-(secondSai.longitude.x+secondSai.longitude.y/60+secondSai.longitude.z/3600));//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 / 60 + se.longitude.z / 3600 - (secondSai.longitude.x + secondSai.longitude.y / 60 + secondSai.longitude.z / 3600));float tempZ = (float)(se.latitude.x + se.latitude.y / 60 + se.latitude.z / 3600 - (secondSai.latitude.x + secondSai.latitude.y / 60 + secondSai.latitude.z / 3600));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/60 + secondSai.longitude.z/3600);float resultZ = _z_offset + (secondSai.latitude.x + secondSai.latitude.y/60 + secondSai.latitude.z/3600);tempEarth.longitude = new Vector3 ((int)resultX, (int)((resultX - (int)resultX)*60),((resultX - (int)resultX)*60 - (int)((resultX - (int)resultX)*60))*60);tempEarth.latitude = new Vector3 ((int)resultZ, (int)((resultZ - (int)resultZ)*60),((resultZ - (int)resultZ)*60 - (int)((resultZ - (int)resultZ)*60))*60);return tempEarth;}}

上面有一个SaiEarth的类，其实写的很简单：

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;}
}