关于gps坐标转百度坐标的 js方法以及java方法

js转换方法

var resultPoint = GpsToBaiduPoint(new BMap.Point(data.lon, data.lat));var ps = [];ps.push(new BMap.Point(points[i].lon, points[i].lat));var resultPoints = GpsToBaiduPoints(ps);

/** * 单个坐标转换 * @param point * @returns {BMap.Point} */function GpsToBaiduPoint(point){    var _t = wgs2bd(point.lat,point.lng);    var _BPoint = new BMap.Point(_t[1], _t[0]);    return _BPoint;}/** * 批量坐标转换 * @param points * @returns {Array} */function GpsToBaiduPoints(points){    var resultPoints = [];    $.each(points,function(index,point){        var _t = wgs2bd(point.lat,point.lng);        var _BPoint = new BMap.Point(_t[1], _t[0]);        resultPoints.push(_BPoint);    });    return resultPoints;}////////////////////////////////////////////////////////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 bd2gcj(lat,lon) {    var x = lon - 0.0065, y = lat - 0.006;    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 gg_lon = z * Math.cos(theta);    var gg_lat = z * Math.sin(theta);    var result = [];    result.push(gg_lat);    result.push(gg_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;}

java转换方法

public static void main(String[] args) {//double[] local = GpsToBaiDuXY.wgs2bd(126.50111324097671,45.88024762976107);126.488445 45.871875double[] local = GpsToBaiDuXY.wgs2bd(45.871875,126.488445);System.out.println(local[0]);System.out.println(local[1]);}static double pi = 3.14159265358979324;static double a = 6378245.0;static double ee = 0.00669342162296594323;public final static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;public static double[] wgs2bd(double lat, double lon) {       double[] wgs2gcj = wgs2gcj(lat, lon);       double[] gcj2bd = gcj2bd(wgs2gcj[0], wgs2gcj[1]);       return gcj2bd;}public static double[] gcj2bd(double lat, double lon) {       double x = lon, y = lat;       double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);       double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);       double bd_lon = z * Math.cos(theta) + 0.0065;       double bd_lat = z * Math.sin(theta) + 0.006;       return new double[] { bd_lat, bd_lon };}public static double[] bd2gcj(double lat, double lon) {       double x = lon - 0.0065, y = lat - 0.006;       double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);       double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);       double gg_lon = z * Math.cos(theta);       double gg_lat = z * Math.sin(theta);       return new double[] { gg_lat, gg_lon };}public static double[] wgs2gcj(double lat, double lon) {       double dLat = transformLat(lon - 105.0, lat - 35.0);       double dLon = transformLon(lon - 105.0, lat - 35.0);       double radLat = lat / 180.0 * pi;       double magic = Math.sin(radLat);       magic = 1 - ee * magic * magic;       double sqrtMagic = Math.sqrt(magic);       dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);       dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);       double mgLat = lat + dLat;       double mgLon = lon + dLon;       double[] loc = { mgLat, mgLon };       return loc;}private static double transformLat(double lat, double lon) {       double 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;}private static double transformLon(double lat, double lon) {       double 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;}