移动端百度地图精准获取当前位置

Vue主要代码如下：

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import {wgs2bd} from "@views/webApp/comp/appUtil";   methods: {     getCurrentLocation(){       navigator.geolocation.getCurrentPosition((res)=>{         let point = wgs2bd(res.coords.latitude,res.coords.longitude)         // IP地址放入缓存         localStorage.setItem("longitude",point[1]);         localStorage.setItem("latitude",point[0]);         console.log(res)       },(err)=>{         console.log(err)       },{         enableHighAcuracy: true, //位置是否精确获取         timeout: 6000,//获取位置允许的最长时间         maximumAge: 0 //多久更新获取一次位置       })     }, },

坐标转换js代码如下：

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//坐标转换核心代码 var pi = 3.14159265358979324; var a = 6378245.0; var ee = 0.00669342162296594323; var x_pi = 3.14159265358979324*3000.0/180.0;     //世界大地坐标转为百度坐标 export function wgs2bd(lat,lon) {   var wgs2gcjR = wgs2gcj(lat, lon);   var gcj2bdR = gcj2bd(wgs2gcjR[0], wgs2gcjR[1]);   return gcj2bdR; }   function gcj2bd(lat,lon) {   var x = lon, y = lat;   var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);   var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);   var bd_lon = z * Math.cos(theta) + 0.0065;   var bd_lat = z * Math.sin(theta) + 0.006;   var result = [];   result.push(bd_lat);   result.push(bd_lon);   return result; }   function wgs2gcj(lat,lon) {   var dLat = transformLat(lon - 105.0, lat - 35.0);   var dLon = transformLon(lon - 105.0, lat - 35.0);   var radLat = lat / 180.0 * pi;   var magic = Math.sin(radLat);   magic = 1 - ee * magic * magic;   var sqrtMagic = Math.sqrt(magic);   dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);   dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);   var mgLat = lat + dLat;   var mgLon = lon + dLon;   var result = [];   result.push(mgLat);   result.push(mgLon);   return result; }   function transformLat(lat,lon) {   var ret = -100.0 + 2.0 * lat + 3.0 * lon + 0.2 * lon * lon + 0.1 * lat * lon + 0.2 * Math.sqrt(Math.abs(lat));   ret += (20.0 * Math.sin(6.0 * lat * pi) + 20.0 * Math.sin(2.0 * lat * pi)) * 2.0 / 3.0;   ret += (20.0 * Math.sin(lon * pi) + 40.0 * Math.sin(lon / 3.0 * pi)) * 2.0 / 3.0;   ret += (160.0 * Math.sin(lon / 12.0 * pi) + 320 * Math.sin(lon * pi  / 30.0)) * 2.0 / 3.0;   return ret; }   function transformLon(lat,lon) {   var ret = 300.0 + lat + 2.0 * lon + 0.1 * lat * lat + 0.1 * lat * lon + 0.1 * Math.sqrt(Math.abs(lat));   ret += (20.0 * Math.sin(6.0 * lat * pi) + 20.0 * Math.sin(2.0 * lat * pi)) * 2.0 / 3.0;   ret += (20.0 * Math.sin(lat * pi) + 40.0 * Math.sin(lat / 3.0 * pi)) * 2.0 / 3.0;   ret += (150.0 * Math.sin(lat / 12.0 * pi) + 300.0 * Math.sin(lat / 30.0 * pi)) * 2.0 / 3.0;   return ret; }