Resolution of coordinate deviations in the use of Baidu Map API in the development of hybrid apps

Use Ngcordova's $cordovageolocation module in your project to get the current position latitude and longitude, When displayed in the Baidu map when found error (my test error is about 1.7 km), check the data found that Baidu map latitude and longitude and ordinary GPs obtained latitude and longitude is not the same, the solution reference Baidu Open Map Forum official sticker (http://bbs.lbsyun.baidu.com/ FORUM.PHP?MOD=VIEWTHREAD&AMP;TID=121352&AMP;EXTRA=PAGE%3D1). I use the official give the second way, the code reference is as follows: Ionic framework, introducing <script src= "http://api.map.baidu.com/api?v=2.0&ak= your Key" ></script > and inject the code inside the Ngcordova;controller into the app as follows:

varLatLong;varPosoptions = {enablehighaccuracy:true};//Set positioning accuracy$cordovaGeolocation. GetCurrentPosition (posoptions). Then (function(position) {varLo=position.coords.longitude;//Longitude    varLa=position.coords.latitude;//Latitude    //Start conversion coordinates (GPS---baidu coordinates)$http ({method:' GET ', URL:' http://api.map.baidu.com/geoconv/v1/?coords= ' +lo+ ', ' +la+ ' &from=1&to=5&ak= your secret key '}). Then (functionSuccesscallback (response) {//Conversion Complete      Long=response.data.result[0].x; Lat=response.data.result[0].y; //Call Baidu Map API display   varMap =NewBmap.map ("Map"); varPPoint =NewBmap.point (Long, LAT); Map.centerandzoom (PPoint,18); varGEOC =NewBmap.geocoder (); varmk =NewBmap.marker (ppoint); Map.addoverlay (MK); Geoc.getlocation (NewBmap.point (Long, LAT),function(RS) {if(RS) {varlocation=rs.addresscomponents; $scope. mylocation=location.province+location.city+location.district+location.street+location.streetnumber+ Rs.surroundingpois[0].title;  Console.log ($scope. mylocation);    }}); }, functionErrorcallback (response) {Window.alert ("Failed to convert coordinates, please check network")    }); }, function(Err) {Window.alert ("Get Geo Failed")  });

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Resolution of coordinate deviations from the Baidu map API during the hybrid app development process