你可以看到这个链接 Google
此链接显示参数变量origin1和变量destinationB是平均值lat和lng
但我点击计算距离返回那里的地址
我想要lat和lng结果。
怎么可以?
我需要帮助。
谢谢各位朋友。
答案 0 :(得分:1)
DistanceMatrixService的响应不包含LatLng。
当您查看代码时,您会看到将通过地理编码请求LatLng(用于绘制标记)。
当然你可以使用硬编码的LatLng,但结果可能不同,因为DistanceMatrixService返回的位置不能等于这些值。
如何获取LatLng,无论输入类型(地址或LatLng)如何?
地理编码以异步方式运行,无法保证结果将按特定顺序返回。因此,无法像演示一样创建字符串。
而是创建DOMNode(您要在其中显示LatLng),将这些节点作为参数传递给addMarker
,并在地理编码 - 回调中将节点的内容设置为所需的值
var map;
var geocoder;
var bounds = new google.maps.LatLngBounds();
var markersArray = [];
var origin1 = new google.maps.LatLng(55.930, -3.118);
var origin2 = 'Greenwich, England';
var destinationA = 'Stockholm, Sweden';
var destinationB = new google.maps.LatLng(50.087, 14.421);
var destinationIcon = 'http://www.google.com/mapfiles/dd-end.png';
var originIcon = 'http://www.google.com/mapfiles/dd-start.png';
function initialize() {
var opts = {
center: new google.maps.LatLng(55.53, 9.4),
zoom: 10
};
map = new google.maps.Map(document.getElementById('map-canvas'), opts);
geocoder = new google.maps.Geocoder();
}
function calculateDistances() {
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [origin1, origin2],
destinations: [destinationA, destinationB],
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC,
avoidHighways: false,
avoidTolls: false
}, callback);
}
function callback(response, status) {
if (status != google.maps.DistanceMatrixStatus.OK) {
alert('Error was: ' + status);
} else {
var origins = response.originAddresses;
var destinations = response.destinationAddresses;
var outputDiv = document.getElementById('outputDiv');
outputDiv.innerHTML = '';
deleteOverlays();
for (var i = 0; i < origins.length; i++) {
//create a new "row"
var row=outputDiv.appendChild(document.createElement('div'));
var results = response.rows[i].elements;
//origin-marker
addMarker(origins[i], false,row.appendChild(document.createElement('code')));
//a list for the destinations
var list=row.appendChild(document.createElement('ul'));
for (var j = 0; j < results.length; j++) {
var item=list.appendChild(document.createElement('li'));
item.appendChild(document.createTextNode(' to '));
//destination-marker
addMarker(destinations[j], true,item.appendChild(document.createElement('code')));
item.appendChild(document.createTextNode([': ',
results[j].distance.text,
' in ',
results[j].duration.text
].join('')));
}
}
}
}
function addMarker(location, isDestination,node) {
var icon;
if (isDestination) {
icon = destinationIcon;
} else {
icon = originIcon;
}
geocoder.geocode({'address': location}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
bounds.extend(results[0].geometry.location);
map.fitBounds(bounds);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location,
icon: icon
});
markersArray.push(marker);
node.appendChild(document.createTextNode('('+marker.getPosition().toUrlValue()+')'));
node.setAttribute('title',location);
node.style.background=(isDestination)?'red':'green';
google.maps.event.addDomListener(node,'click',function(){map.panTo(marker.getPosition())})
} else {
alert('Geocode was not successful for the following reason: '
+ status);
}
});
}
function deleteOverlays() {
for (var i = 0; i < markersArray.length; i++) {
markersArray[i].setMap(null);
}
markersArray = [];
}
google.maps.event.addDomListener(window, 'load', initialize);
&#13;
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map-canvas {
height: 100%;
width: 50%;
}
#content-pane {
float:right;
width:48%;
padding-left: 2%;
}
#outputDiv>div:nth-child(n+2){
border-top:1px dotted silver;
}
#outputDiv code{
cursor:pointer;
color:#fff;
}
&#13;
<script src="https://maps.googleapis.com/maps/api/js?v=3&.js"></script>
<div id="content-pane">
<button type="button" onclick="calculateDistances();">
Calculate distances
</button>
<div id="outputDiv"></div>
</div>
<div id="map-canvas"></div>
&#13;