地图经纬度转换工具（天地图，高德地图，百度地图，腾讯地图）
uniapp 中不同地图坐标系经纬度转换（天地图，高德地图，百度地图，腾讯地图）
WGS-84：是国际标准，GPS坐标（Google Earth使用、或者GPS模块、天地图）
GCJ-02：中国坐标偏移标准，Google Map、高德、腾讯使用
BD-09：百度坐标偏移标准，Baidu Map使用
使用演示：https://tool.bitefu.net/geo/maptool.html
// 坐标系转换工具类
// WGS-84：是国际标准，GPS坐标（Google Earth使用、或者GPS模块、天地图）
// GCJ-02：中国坐标偏移标准，Google Map、高德、腾讯使用
// BD-09：百度坐标偏移标准，Baidu Map使用
function MapTool() {
this.x_PI = 3.14159265358979324 * 3000.0 / 180.0;
this.PI = 3.1415926535897932384626;
this.ee = 0.00669342162296594323;
this.a = 6378245.0;
}
// GCJ-02 转 WGS-84 高德、腾讯转天地图GPS
MapTool.prototype.gcj02towgs84 = function(lng, lat) {
if (this.out_of_china(lng, lat)) {
return [lng, lat];
} else {
let dlat = this.transformlat(lng - 105.0, lat - 35.0);
let dlng = this.transformlng(lng - 105.0, lat - 35.0);
let radlat = lat / 180.0 * this.PI;
let magic = Math.sin(radlat);
magic = 1 - this.ee * magic * magic;
let sqrtmagic = Math.sqrt(magic);
dlat = (dlat * 180.0) / ((this.a * (1 - this.ee)) / (magic * sqrtmagic) * this.PI);
dlng = (dlng * 180.0) / (this.a / sqrtmagic * Math.cos(radlat) * this.PI);
let mglat = lat + dlat;
let mglng = lng + dlng;
return [lng * 2 - mglng, lat * 2 - mglat];
}
};
// GCJ-02 转 BD-09 高德、腾讯转百度
MapTool.prototype.gcj02tobd09 = function(lng, lat) {
let z = Math.sqrt(lng * lng + lat * lat) + 0.00002 * Math.sin(lat * this.x_PI);
let theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * this.x_PI);
let bd_lng = z * Math.cos(theta) + 0.0065;
let bd_lat = z * Math.sin(theta) + 0.006;
return [bd_lng, bd_lat];
};
// WGS-84 转 GCJ-02 天地图GPS转高德、腾讯
MapTool.prototype.wgs84togcj02 = function(lng, lat) {
if (this.out_of_china(lng, lat)) {
return [lng, lat];
} else {
let dlat = this.transformlat(lng - 105.0, lat - 35.0);
let dlng = this.transformlng(lng - 105.0, lat - 35.0);
let radlat = lat / 180.0 * this.PI;
let magic = Math.sin(radlat);
magic = 1 - this.ee * magic * magic;
let sqrtmagic = Math.sqrt(magic);
dlat = (dlat * 180.0) / ((this.a * (1 - this.ee)) / (magic * sqrtmagic) * this.PI);
dlng = (dlng * 180.0) / (this.a / sqrtmagic * Math.cos(radlat) * this.PI);
let mglat = lat + dlat;
let mglng = lng + dlng;
return [mglng, mglat];
}
};
// BD-09 转 GCJ-02 百度转高德、腾讯
MapTool.prototype.bd09togcj02 = function(bd_lng, bd_lat) {
let x = bd_lng - 0.0065;
let y = bd_lat - 0.006;
let z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * this.x_PI);
let theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * this.x_PI);
let gg_lng = z * Math.cos(theta);
let gg_lat = z * Math.sin(theta);
return [gg_lng, gg_lat];
};
// BD-09 转 WGS-84 百度转天地图GPS
MapTool.prototype.bd09towgs84 = function(lng, lat) {
const gcj = this.bd09togcj02(lng, lat);
return this.gcj02towgs84(gcj[0], gcj[1]);
};
// WGS-84 转 BD-09 天地图GPS转百度
MapTool.prototype.wgs84tobd09 = function(lng, lat) {
const gcj = this.wgs84togcj02(lng, lat);
return this.gcj02tobd09(gcj[0], gcj[1]);
};
// 内部转换方法
MapTool.prototype.transformlat = function(lng, lat) {
let ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng));
ret += (20.0 * Math.sin(6.0 * lng * this.PI) + 20.0 * Math.sin(2.0 * lng * this.PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(lat * this.PI) + 40.0 * Math.sin(lat / 3.0 * this.PI)) * 2.0 / 3.0;
ret += (160.0 * Math.sin(lat / 12.0 * this.PI) + 320 * Math.sin(lat * this.PI / 30.0)) * 2.0 / 3.0;
return ret;
};
MapTool.prototype.transformlng = function(lng, lat) {
let ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng));
ret += (20.0 * Math.sin(6.0 * lng * this.PI) + 20.0 * Math.sin(2.0 * lng * this.PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(lng * this.PI) + 40.0 * Math.sin(lng / 3.0 * this.PI)) * 2.0 / 3.0;
ret += (150.0 * Math.sin(lng / 12.0 * this.PI) + 300.0 * Math.sin(lng / 30.0 * this.PI)) * 2.0 / 3.0;
return ret;
};
// 判断坐标是否在中国境内
MapTool.prototype.out_of_china = function(lng, lat) {
return (lng < 72.004 || lng > 137.8347) || (lat < 0.8293 || lat > 55.8271);
};
// 初始化转换工具
const mapTool = new MapTool();
// 坐标转换函数
function convertCoordinates(lng,lat,sourceType,targetType) {
var ret = {status:0,msg:''};
if (isNaN(lng) || isNaN(lat)) {
ret.msg = '请输入有效的经纬度数值';
return ret;
}
lng = parseFloat(lng)
lat = parseFloat(lat)
let result;
const originalCoords = [lng, lat];
try {
if (sourceType === targetType) {
result = [lng, lat];
} else if (sourceType === 'gcj02' && targetType === 'wgs84') {
result = mapTool.gcj02towgs84(lng, lat);
} else if (sourceType === 'gcj02' && targetType === 'bd09') {
result = mapTool.gcj02tobd09(lng, lat);
} else if (sourceType === 'wgs84' && targetType === 'gcj02') {
result = mapTool.wgs84togcj02(lng, lat);
} else if (sourceType === 'wgs84' && targetType === 'bd09') {
result = mapTool.wgs84tobd09(lng, lat);
} else if (sourceType === 'bd09' && targetType === 'gcj02') {
result = mapTool.bd09togcj02(lng, lat);
} else if (sourceType === 'bd09' && targetType === 'wgs84') {
result = mapTool.bd09towgs84(lng, lat);
}
ret.status=1;
ret.lng = result[0].toFixed(6);
ret.lat = result[1].toFixed(6);
return ret;
} catch (e) {
ret.msg = '转换失败: ' + e.message;
return ret;
}
}php类
<?php
/**
* @name Coordinate
* @desc 坐标转换
*/
class Coordinate
{
const x_PI = 52.35987755982988;
const PI = 3.1415926535897932384626;
const a = 6378245.0;
const ee = 0.00669342162296594323;
/**
* 百度坐标系(BD-09) 转 火星坐标系(GCJ-02)
* @param
* @return
**/
public static function bd09ToGcj02($bd_lon, $bd_lat)
{
$x = $bd_lon - 0.0065;
$y = $bd_lat - 0.006;
$z = sqrt($x * $x + $y * $y) - 0.00002 * sin($y * self::x_PI);
$theta = atan2($y, $x) - 0.000003 * cos($x * self::x_PI);
$g_lon = $z * cos($theta);
$g_lat = $z * sin($theta);
return array('lon' => $g_lon, 'lat' => $g_lat);
}
/**
* 火星坐标系(GCJ-02) 转 百度坐标系(BD-09)
* 即谷歌、高德 转 百度
* @param
* @return
**/
public static function gcj02Tobd09($g_lon, $g_lat)
{
$z = sqrt($g_lon * $g_lon + $g_lat * $g_lat) + 0.00002 * sin($g_lat * self::x_PI);
$theta = atan2($g_lat, $g_lon) + 0.000003 * cos($g_lon * self::x_PI);
$bd_lon = $z * cos($theta) + 0.0065;
$bd_lat = $z * sin($theta) + 0.006;
return array('lon' => $bd_lon, 'lat' => $bd_lat);
}
/**
* WGS84 转 GCj02
* @param
* @return
**/
public static function wgs84ToGcj02($w_lon, $w_lat)
{
$dlat = self::transFormLat($w_lon - 105.0, $w_lat - 35.0);
$dlon = self::transFormLon($w_lon - 105.0, $w_lat - 35.0);
$radlat = $w_lat / 180.0 * self::PI;
$magic = sin($radlat);
$magic = 1 - self::ee * $magic * $magic;
$sqrtmagic = sqrt($magic);
$dlat = ($dlat * 180.0) / ((self::a * (1 - self::ee)) / ($magic * $sqrtmagic) * self::PI);
$dlon = ($dlon * 180.0) / (self::a / $sqrtmagic * cos($radlat) * self::PI);
$g_lat = $w_lat + $dlat;
$g_lon = $w_lon + $dlon;
return array('lon' => $g_lon, 'lat' => $g_lat);
}
/**
* GCJ02 转换为 WGS84
* @param
* @return
**/
public static function gcj02ToWgs84($g_lon, $g_lat)
{
$dlat = self::transFormLat($g_lon - 105.0, $g_lat - 35.0);
$dlon = self::transFormLon($g_lon - 105.0, $g_lat - 35.0);
$radlat = $g_lat / 180.0 * self::PI;
$magic = sin($radlat);
$magic = 1 - self::ee * $magic * $magic;
$sqrtmagic = sqrt($magic);
$dlat = ($dlat * 180.0) / ((self::a * (1 - self::ee)) / ($magic * $sqrtmagic) * self::PI);
$dlon = ($dlon * 180.0) / (self::a / $sqrtmagic * cos($radlat) * self::PI);
$w_lat = $g_lat + $dlat;
$w_lon = $g_lon + $dlon;
return array('lon' => $g_lon * 2 -$w_lon, 'lat' => $g_lat * 2 -$w_lat);
}
/**
* BD09 转换为 WGS84
* @param
* @return
**/
public static function bd09ToWgs84($bd_lon, $bd_lat)
{
$gcj02 = self::bd09ToGcj02($bd_lon, $bd_lat);
$g_lon = $gcj02['lon'];
$g_lat = $gcj02['lat'];
$wgs84 = self::gcj02ToWgs84($g_lon, $g_lat);
return $wgs84;
}
/**
* WGS84 转换为 BD09
* @param
* @return
**/
public static function wgs84ToBd09($w_lon,$w_lat){
$gcj02 = self::wgs84ToGcj02($w_lon,$w_lat);
$g_lon = $gcj02['lon'];
$g_lat = $gcj02['lat'];
$bd09 = self::gcj02Tobd09($g_lon,$g_lat);
return $bd09;
}
/**
* 转换纬度
* @param
* @return
**/
protected static function transFormLat($lon, $lat)
{
$ret = -100.0 + 2.0 * $lon + 3.0 * $lat + 0.2 * $lat * $lat + 0.1 * $lon * $lat + 0.2 * sqrt(abs($lon));
$ret += (20.0 * sin(6.0 * $lon * self::PI) + 20.0 * sin(2.0 * $lon * self::PI)) * 2.0 / 3.0;
$ret += (20.0 * sin($lat * self::PI) + 40.0 * sin($lat / 3.0 * self::PI)) * 2.0 / 3.0;
$ret += (160.0 * sin($lat / 12.0 * self::PI) + 320 * sin($lat * self::PI / 30.0)) * 2.0 / 3.0;
return $ret;
}
/**
* 转换经度
* @param
* @return
**/
protected static function transFormLon($lon, $lat)
{
$ret = 300.0 + $lon + 2.0 * $lat + 0.1 * $lon * $lon + 0.1 * $lon * $lat + 0.1 * sqrt(abs($lon));
$ret += (20.0 * sin(6.0 * $lon * self::PI) + 20.0 * sin(2.0 * $lon * self::PI)) * 2.0 / 3.0;
$ret += (20.0 * sin($lon * self::PI) + 40.0 * sin($lon / 3.0 * self::PI)) * 2.0 / 3.0;
$ret += (150.0 * sin($lon / 12.0 * self::PI) + 300.0 * sin($lon / 30.0 * self::PI)) * 2.0 / 3.0;
return $ret;
}
}
?>
