高德地图与百度地图导航坐标转换

高德转百度（火星坐标gcj02ll–>百度坐标bd09ll）

gaoDeToBaidu = (gd_lon,gd_lat) {
    var PI = 3.14159265358979324 * 3000.0 / 180.0;
    var x = gd_lon, y = gd_lat;
    var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * PI);
    var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * PI);
    var bd_lng  = z * Math.cos(theta) + 0.0065;
    var bd_lat  = z * Math.sin(theta) + 0.006;
    return {
      bd_lat: bd_lat,
      bd_lng: bd_lng
    };
}

百度转高德（百度坐标bd09ll–>火星坐标gcj02ll）

bd_encrypt = (lng, lat) => {
    var X_PI = Math.PI * 3000.0 / 180.0;
    var x = lng- 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 bd_lng = z * Math.cos(theta);
    var bd_lat = z * Math.sin(theta);
    return {
      bd_lat: bd_lat,
      bd_lng: bd_lng
    };
  }

使用：

  constructor(){
    var bd_lng = this.bd_encrypt(121.4893810000,31.2246690000).bd_lng;
    var bd_lat = this.bd_encrypt(121.4893810000,31.2246690000).bd_lat;
    this.markerPosition = {longitude: bd_lng, latitude: bd_lat};
  }