使用Google Maps的computeDistanceBetween方法获取最近的位置返回NaN。

Question

好的，我已经在测试网站上设置了地图和自动完成字段。

我的目标是让用户在字段中输入他/她的地址，然后当他/她单击确认时根据提供的信息计算最接近他/她的商店。

每个商店都有纬度/经度，借助自动完成，我现在拥有用户地址的纬度/经度，但是当我使用文档中提供的computeDistanceBetween方法时，我得到的结果是NaN而不是期望的结果。

这是一个链接到测试网站以获取想法的链接- http://dev.touch-akl.com/map/

以下是我迄今为止尝试过的内容：

    //----------------------------------------------------------------
    //--- Search Box -------------------------------------------------

    var input = document.getElementById('address');
    var $confirm = $('#confirm');

    var options = {
       types: ['geocode'],
       componentRestrictions: {country: 'nz'}//Turkey only
    };        

    var autocomplete = new google.maps.places.Autocomplete(input,options);
    autocomplete.bindTo('bounds', map);

    $confirm.click(function(){

        var _street = $('#address').val();
        var place = autocomplete.getPlace();
        var _coordinates = place.geometry.location.toString();
        var _delivery = _coordinates.substring(1, _coordinates.length - 1);
        var _kCord = '-36.874694,174.735292';
        var _pCord = '-36.858317,174.782284'

        console.log(_coordinates);
        console.log(_delivery);

        console.log(google.maps.geometry.spherical.computeDistanceBetween(_pCord, _delivery));
        console.log(google.maps.geometry.spherical.computeDistanceBetween(_kCord, _delivery));


    });

- Chris G-Jones

Answer 1

google.maps.geometry.spherical.computeDistanceBetween 需要输入两个 google.maps.LatLng 对象，而你正在使用字符串，这样是行不通的。以下应该能够解决问题...

$confirm.click(function(){
    var _street = $('#address').val();
    var place = autocomplete.getPlace();
    var _coordinates = place.geometry.location; //a google.maps.LatLng object
    var _kCord = new google.maps.LatLng(-36.874694, 174.735292);
    var _pCord = new google.maps.LatLng(-36.858317, 174.782284);

    console.log(_coordinates);

    console.log(google.maps.geometry.spherical.computeDistanceBetween(_pCord, _coordinates));
    console.log(google.maps.geometry.spherical.computeDistanceBetween(_kCord, _coordinates));
});

- astupidname