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
function mapTool() {
this.x_PI = 3.14159265358979324 * 3000.0 / 180.0,
this.PI = 3.1415926535897932384626,
this.ee = 0.00669342162296594323,
this.a = 6378245.0;
}
/**
* GCJ02 转换为 WGS84
* @param lng
* @param lat
* @returns {*[]}
*/ 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]
}
},
/**
* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换
* 即谷歌、高德 转 百度
* @param lng
* @param lat
* @returns {*[]}
*/
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]
},
/**
* WGS84转GCj02
* @param lng
* @param lat
* @returns {*[]}
*/
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]
}
},
/**
* GCJ02 转换为 WGS84
* @param lng
* @param lat
* @returns {*[]}
*/
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]
}
},
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
},
/**
* 判断是否在国内，不在国内则不做偏移
* @param lng
* @param lat
* @returns {boolean}
*/
mapTool.prototype.out_of_china = function(lng, lat) {
return (lng < 72.004 || lng > 137.8347) || ((lat < 0.8293 || lat > 55.8271) || false);
},
module.exports.mapTool = mapTool;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;
}
}
?>
