腾讯地图定位及坐标解析

作者: niunan | 来源:发表于2020-05-16 13:47 被阅读0次

一个项目，需要打开地图后点击获取地址

用的腾讯地图开放平台，对着文档花了一上午弄出来了

代码：

<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>前端定位模块</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no">
<style>
#pos-area{
height:500px;
width: 100%;
}
#poi_lat{color:red;}
#poi_lng{color:green;}
#poi_address{color:blue;}
</style>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script charset="utf-8" src="https://map.qq.com/api/js?v=2.exp&key=OB4BZ-D4W3U-B7VVO-4PJWW-6TKDJ-WPB77"></script>
<script type="text/javascript"
src="https://3gimg.qq.com/lightmap/components/geolocation/geolocation.min.js"></script>
</head>

<body>
<h1>腾讯地图测试</h1>
<div>您在当的位置（经度：<span id="now_lat"></span>，纬度：<span id="now_lng"></span>）<button type="button"
onclick="geolocation.getLocation(showPosition, showErr, options)">获取当前位置</button></div>
<div>您点击的位置（经度：<span id="poi_lat"></span>，纬度：<span id="poi_lng"></span>，解析出来的地址：<span id="poi_address"></span>）</div>
<div id="pos-area">

</div>

<script type="text/JavaScript">
var appkey ="A4KBZ-LUZE3-VPW3T-YGU5N-SIT2S-5ZFVH";

var geolocation = new qq.maps.Geolocation(appkey, "myapp");
var options = {timeout: 8000};

$(function(){
//加载完成后就取当前位置
geolocation.getLocation(showPosition, showErr, options);
})

    function showPosition(position) {
        console.log(position);
        $('#now_lat').html(position.lat);
        $('#now_lng').html(position.lng);
        $('#poi_lat').html(position.lat);

$('#poi_lng').html(position.lng); //取出位置坐标了，设置地图显示出来 var map = new qq.maps.Map(document.getElementById("pos-area"), { // 地图的中心地理坐标。 center: new qq.maps.LatLng(position.lat,position.lng), zoom:15 }); //添加标记 var marker = new qq.maps.Marker({ position: new qq.maps.LatLng(position.lat,position.lng), map: map }); //解析地址 jiexiaddress(position.lat,position.lng); //绑定地图点击事件 qq.maps.event.addListener(map, "click", function (e) {$ ('#poi_lat').html(e.latLng.getLat().toFixed(6));
$('#poi_lng').html(e.latLng.getLng().toFixed(6));
//先移除标记，再添加标记
marker.setMap(null);
marker = new qq.maps.Marker({
position: new qq.maps.LatLng(e.latLng.getLat(),e.latLng.getLng()),
map: map
});
jiexiaddress(e.latLng.getLat(),e.latLng.getLng());
});
};

    function showErr() { 
        alert("定位失败！"); 
    };

//解析地址
function jiexiaddress(lat,lng){
var url3 = encodeURI("https://apis.map.qq.com/ws/geocoder/v1/?location=" + lat + "," + lng + "&key="+appkey+"&output=jsonp&&callback=?");
$.getJSON(url3, function (result) { if(result.result!=undefined){$ ('#poi_address').html(result.result.address);
}else{
$('#poi_address').html('');
}